/* === IREM SU - Modern Water Purification Website === */
:root {
    --primary: #0066cc;
    --primary-dark: #004d99;
    --primary-light: #3399ff;
    --secondary: #00b4d8;
    --accent: #48cae4;
    --dark: #0a1628;
    --dark-light: #1a2d4a;
    --white: #ffffff;
    --gray-100: #f8fafc;
    --gray-200: #e2e8f0;
    --gray-300: #cbd5e1;
    --gray-600: #64748b;
    --success: #10b981;
    --gradient: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    --gradient-dark: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    --shadow: 0 10px 40px rgba(0, 102, 204, 0.15);
    --shadow-lg: 0 25px 80px rgba(0, 102, 204, 0.2);
    --radius: 16px;
    --radius-sm: 8px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

*,
*::before,
*::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', sans-serif;
    background: var(--white);
    color: var(--dark);
    line-height: 1.6;
    overflow-x: hidden;
}

/* === Water Background === */
.water-bg {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    pointer-events: none;
    z-index: 0;
    overflow: hidden;
}

.bubble {
    position: absolute;
    bottom: -100px;
    width: var(--size);
    height: calc(var(--size) * 1.4);
    left: var(--left);
    background: radial-gradient(ellipse at 30% 20%, rgba(255, 255, 255, 0.6), rgba(0, 180, 216, 0.3) 40%, rgba(0, 102, 204, 0.15) 70%, transparent 100%);
    border-radius: 50% 50% 50% 50% / 60% 60% 40% 40%;
    animation: bubble var(--duration) infinite ease-in-out;
    animation-delay: var(--delay);
    filter: blur(0.5px);
}

@keyframes bubble {
    0% {
        transform: translateY(0) scale(1);
        opacity: 0;
    }

    10% {
        opacity: 0.6;
    }

    90% {
        opacity: 0.6;
    }

    100% {
        transform: translateY(-100vh) scale(1.2);
        opacity: 0;
    }
}

/* === Container === */
.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* === Navigation === */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    padding: 16px 0;
    transition: var(--transition);
}

.navbar.scrolled {
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(20px);
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    padding: 12px 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    text-decoration: none;
}

.logo-icon {
    width: 48px;
    height: 48px;
    background: var(--gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    box-shadow: 0 8px 24px rgba(0, 102, 204, 0.3);
}

.logo-text {
    display: flex;
    flex-direction: column;
}

.logo-main {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
}

.logo-sub {
    font-size: 0.75rem;
    color: var(--gray-600);
}

.navbar:not(.scrolled) .logo-main,
.navbar:not(.scrolled) .logo-sub {
    color: var(--white);
}

.nav-menu {
    display: flex;
    gap: 8px;
}

.nav-link {
    padding: 10px 16px;
    color: var(--white);
    text-decoration: none;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.navbar.scrolled .nav-link {
    color: var(--dark);
}

.nav-link:hover,
.nav-link.active {
    background: rgba(0, 102, 204, 0.1);
    color: var(--primary);
}

.nav-phone {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 20px;
    background: var(--gradient);
    color: var(--white);
    text-decoration: none;
    font-weight: 600;
    border-radius: 50px;
    box-shadow: 0 8px 24px rgba(0, 102, 204, 0.3);
    transition: var(--transition);
}

.nav-phone:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 32px rgba(0, 102, 204, 0.4);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--white);
    transition: var(--transition);
}

.navbar.scrolled .nav-toggle span {
    background: var(--dark);
}

/* === Hero Section === */
.hero {
    min-height: 100vh;
    background: var(--gradient-dark);
    position: relative;
    display: flex;
    align-items: center;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%' height='100%' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.03;
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow: hidden;
}

.particle {
    position: absolute;
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0.4;
    animation: float 15s infinite ease-in-out;
}

.particle:nth-child(1) {
    top: 20%;
    left: 10%;
    animation-delay: 0s;
}

.particle:nth-child(2) {
    top: 40%;
    left: 30%;
    animation-delay: 2s;
}

.particle:nth-child(3) {
    top: 60%;
    left: 50%;
    animation-delay: 4s;
}

.particle:nth-child(4) {
    top: 30%;
    left: 70%;
    animation-delay: 1s;
}

.particle:nth-child(5) {
    top: 70%;
    left: 85%;
    animation-delay: 3s;
}

@keyframes float {

    0%,
    100% {
        transform: translateY(0) translateX(0);
    }

    25% {
        transform: translateY(-30px) translateX(10px);
    }

    50% {
        transform: translateY(-10px) translateX(-10px);
    }

    75% {
        transform: translateY(-40px) translateX(5px);
    }
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    position: relative;
    z-index: 2;
    padding: 120px 24px 80px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(0, 180, 216, 0.2);
    border: 1px solid rgba(0, 180, 216, 0.3);
    border-radius: 50px;
    color: var(--accent);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 800;
    color: var(--white);
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-title span {
    display: block;
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent) 0%, var(--secondary) 50%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-description {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
    max-width: 500px;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 28px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    border-radius: 50px;
    border: none;
    cursor: pointer;
    transition: var(--transition);
}

.btn-primary {
    background: var(--gradient);
    color: var(--white);
    box-shadow: 0 8px 32px rgba(0, 102, 204, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 102, 204, 0.5);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
    border-color: var(--white);
}

.btn-whatsapp {
    background: #25d366;
    color: var(--white);
}

.btn-whatsapp:hover {
    background: #20bd5a;
    transform: translateY(-3px);
}

.btn-lg {
    padding: 18px 36px;
    font-size: 1.125rem;
}

.btn-full {
    width: 100%;
    justify-content: center;
}

.btn-product {
    background: var(--gradient);
    color: var(--white);
    padding: 12px 24px;
    font-size: 0.875rem;
}

/* === Hero Stats === */
.hero-stats {
    display: flex;
    gap: 40px;
}

.stat-item {
    text-align: left;
}

.stat-number {
    font-size: 2.5rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
}

.stat-number::after {
    content: '+';
    font-size: 1.5rem;
}

.stat-label {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.7);
    margin-top: 4px;
}

/* === Hero Visual === */
.hero-visual {
    position: relative;
    display: flex;
    justify-content: center;
    align-items: center;
}

.hero-image-container {
    position: relative;
    width: 400px;
    height: 400px;
}

.water-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 100%;
    height: 100%;
    border: 2px solid rgba(0, 180, 216, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    animation: pulse-ring 3s infinite ease-out;
}

.water-ring-2 {
    animation-delay: 1.5s;
}

@keyframes pulse-ring {
    0% {
        transform: translate(-50%, -50%) scale(0.8);
        opacity: 1;
    }

    100% {
        transform: translate(-50%, -50%) scale(1.5);
        opacity: 0;
    }
}

.hero-product {
    position: relative;
    z-index: 2;
}

.hero-product img {
    max-width: 350px;
    height: auto;
    filter: drop-shadow(0 30px 60px rgba(0, 0, 0, 0.3));
}

.floating {
    animation: floating 4s infinite ease-in-out;
}

@keyframes floating {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-20px);
    }
}

.feature-float {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 12px 20px;
    background: rgba(255, 255, 255, 0.95);
    border-radius: 50px;
    box-shadow: var(--shadow);
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--dark);
    animation: float-feature 5s infinite ease-in-out;
    animation-delay: var(--delay);
}

.feature-float i {
    color: var(--primary);
    font-size: 1.25rem;
}

@keyframes float-feature {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.hero-wave {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 120px;
}

.hero-wave svg {
    width: 100%;
    height: 100%;
    display: block;
}

/* === Trust Section === */
.trust-section {
    padding: 60px 0;
    background: var(--white);
}

.trust-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 24px;
    background: var(--gray-100);
    border-radius: var(--radius);
    transition: var(--transition);
}

.trust-item:hover {
    transform: translateY(-5px);
    box-shadow: var(--shadow);
}

.trust-item i {
    font-size: 2rem;
    color: var(--primary);
}

.trust-item h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--dark);
}

.trust-item p {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* === Section Headers === */
.section-header {
    text-align: center;
    margin-bottom: 60px;
}

.section-tag {
    display: inline-block;
    padding: 8px 20px;
    background: rgba(0, 102, 204, 0.1);
    color: var(--primary);
    font-size: 0.875rem;
    font-weight: 600;
    border-radius: 50px;
    margin-bottom: 16px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
}

.section-desc {
    font-size: 1.125rem;
    color: var(--gray-600);
    max-width: 600px;
    margin: 0 auto;
}

/* === Products Section === */
.products-section {
    padding: 100px 0;
    background: var(--gray-100);
}

.product-filters {
    display: flex;
    justify-content: center;
    gap: 12px;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.filter-btn {
    padding: 12px 24px;
    background: var(--white);
    border: 2px solid var(--gray-200);
    border-radius: 50px;
    font-size: 0.9375rem;
    font-weight: 600;
    color: var(--gray-600);
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover,
.filter-btn.active {
    background: var(--gradient);
    border-color: transparent;
    color: var(--white);
}

.products-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 32px;
}

.product-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    position: relative;
}

.product-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.product-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    z-index: 3;
}

.product-badge.bestseller {
    background: #ef4444;
    color: var(--white);
}

.product-badge.premium {
    background: linear-gradient(135deg, #f59e0b, #d97706);
    color: var(--white);
}

.product-badge.new {
    background: var(--success);
    color: var(--white);
}

.product-image {
    position: relative;
    padding: 40px;
    background: linear-gradient(180deg, var(--gray-100) 0%, var(--white) 100%);
    display: flex;
    justify-content: center;
    overflow: hidden;
}

.product-glow {
    position: absolute;
    width: 200px;
    height: 200px;
    background: radial-gradient(circle, rgba(0, 180, 216, 0.2), transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover .product-glow {
    opacity: 1;
}

.product-image img {
    max-height: 180px;
    width: auto;
    transition: var(--transition);
}

.product-card:hover .product-image img {
    transform: scale(1.05);
}

.product-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 22, 40, 0.8);
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: var(--transition);
}

.product-card:hover .product-overlay {
    opacity: 1;
}

.quick-view-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--white);
    border: none;
    border-radius: 50px;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--dark);
    cursor: pointer;
    transform: translateY(20px);
    transition: var(--transition);
}

.product-card:hover .quick-view-btn {
    transform: translateY(0);
}

.product-content {
    padding: 24px;
}

.product-category {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.product-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 8px;
}

.product-desc {
    font-size: 0.9375rem;
    color: var(--gray-600);
    margin-bottom: 16px;
}

.product-features {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 20px;
}

.product-features span {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 0.8125rem;
    color: var(--gray-600);
}

.product-features i {
    color: var(--success);
    font-size: 0.75rem;
}

.product-footer {
    display: flex;
    justify-content: space-between;
    align-items: stretch;
    gap: 10px;
    margin-top: 24px;
    flex-wrap: nowrap;
}

.product-footer .btn,
.product-footer button {
    flex: 1 1 0;
    min-width: 0;
    justify-content: center;
    text-align: center;
    padding: 10px 12px;
    font-size: 0.8125rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

/* === Why Us Section === */
.why-us-section {
    padding: 100px 0;
    background: var(--white);
}

.why-us-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.why-card {
    padding: 40px 32px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    text-align: center;
    transition: var(--transition);
}

.why-card:hover {
    border-color: transparent;
    box-shadow: var(--shadow-lg);
    transform: translateY(-10px);
}

.why-icon {
    width: 80px;
    height: 80px;
    margin: 0 auto 24px;
    background: linear-gradient(135deg, rgba(0, 102, 204, 0.1), rgba(0, 180, 216, 0.1));
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 2rem;
    color: var(--primary);
    transition: var(--transition);
}

.why-card:hover .why-icon {
    background: var(--gradient);
    color: var(--white);
}

.why-card h3 {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}

.why-card p {
    font-size: 0.9375rem;
    color: var(--gray-600);
}

/* === Technology Section === */
.tech-section {
    padding: 100px 0;
    background: var(--gradient-dark);
    position: relative;
    overflow: hidden;
}

.tech-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 80px;
    align-items: center;
}

.tech-text .section-tag {
    background: rgba(72, 202, 228, 0.2);
    color: var(--accent);
}

.tech-text .section-title {
    color: var(--white);
    text-align: left;
}

.tech-text p {
    color: rgba(255, 255, 255, 0.8);
    margin-bottom: 32px;
}

.tech-features {
    list-style: none;
}

.tech-features li {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 20px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.tech-icon {
    width: 48px;
    height: 48px;
    background: rgba(72, 202, 228, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent);
    font-size: 1.25rem;
    flex-shrink: 0;
}

.tech-features strong {
    display: block;
    color: var(--white);
    font-weight: 600;
    margin-bottom: 4px;
}

.tech-features span {
    font-size: 0.875rem;
    color: rgba(255, 255, 255, 0.6);
}

.tech-visual {
    display: flex;
    justify-content: center;
    align-items: center;
}

.tech-diagram {
    position: relative;
    width: 350px;
    height: 350px;
}

.diagram-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 120px;
    height: 120px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
    box-shadow: 0 0 60px rgba(0, 180, 216, 0.5);
    z-index: 2;
}

.diagram-center span {
    font-size: 0.75rem;
    font-weight: 600;
    margin-top: 4px;
}

.diagram-ring {
    position: absolute;
    inset: 0;
    animation: rotate 30s linear infinite;
    z-index: 3;
}

@keyframes rotate {
    to {
        transform: rotate(360deg);
    }
}

.ring-item {
    position: absolute;
    width: 80px;
    height: 80px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 0.625rem;
    font-weight: 600;
    color: var(--white);
    padding: 8px;
}

.ring-item:nth-child(1) {
    top: 0;
    left: 50%;
    transform: translateX(-50%);
}

.ring-item:nth-child(2) {
    top: 25%;
    right: 0;
}

.ring-item:nth-child(3) {
    bottom: 10%;
    right: 15%;
}

.ring-item:nth-child(4) {
    bottom: 10%;
    left: 15%;
}

.ring-item:nth-child(5) {
    top: 25%;
    left: 0;
}

/* === Services Section === */
.services-section {
    padding: 100px 0;
    background: var(--gray-100);
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 24px;
}

.service-card {
    padding: 40px 32px;
    background: var(--white);
    border-radius: var(--radius);
    text-align: center;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-10px);
    box-shadow: var(--shadow-lg);
}

.service-icon {
    width: 70px;
    height: 70px;
    margin: 0 auto 24px;
    background: var(--gradient);
    border-radius: var(--radius);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    color: var(--white);
}

.service-card h3 {
    font-size: 1.125rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
}

.service-card p {
    font-size: 0.9375rem;
    color: var(--gray-600);
    margin-bottom: 20px;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
    transition: var(--transition);
}

.service-link:hover {
    gap: 12px;
}

/* === Testimonials === */
.testimonials-section {
    padding: 100px 0;
    background: var(--white);
}

.testimonials-slider {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 32px;
}

.testimonial-card {
    padding: 32px;
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    transition: var(--transition);
}

.testimonial-card:hover {
    border-color: var(--primary);
    box-shadow: var(--shadow);
}

.testimonial-rating {
    margin-bottom: 16px;
    color: #fbbf24;
}

.testimonial-text {
    font-size: 1rem;
    color: var(--gray-600);
    line-height: 1.7;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-weight: 700;
}

.testimonial-author strong {
    display: block;
    color: var(--dark);
    font-weight: 600;
}

.testimonial-author span {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* === About Section === */
.about-section {
    padding: 100px 0;
    background: var(--gray-100);
}

.about-content {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
    align-items: center;
}

.about-image {
    position: relative;
}

.about-img-wrapper {
    position: relative;
    height: 450px;
    background: var(--gradient);
    border-radius: var(--radius);
    overflow: hidden;
}

.about-pattern {
    position: absolute;
    inset: 0;
    background: url("data:image/svg+xml,%3Csvg width='60' height='60' viewBox='0 0 60 60' xmlns='http://www.w3.org/2000/svg'%3E%3Cg fill='none' fill-rule='evenodd'%3E%3Cg fill='%23ffffff' fill-opacity='0.1'%3E%3Cpath d='M36 34v-4h-2v4h-4v2h4v4h2v-4h4v-2h-4zm0-30V0h-2v4h-4v2h4v4h2V6h4V4h-4zM6 34v-4H4v4H0v2h4v4h2v-4h4v-2H6zM6 4V0H4v4H0v2h4v4h2V6h4V4H6z'/%3E%3C/g%3E%3C/g%3E%3C/svg%3E");
}

.about-badge {
    position: absolute;
    bottom: 32px;
    right: 32px;
    padding: 24px;
    background: var(--white);
    border-radius: var(--radius);
    text-align: center;
    box-shadow: var(--shadow-lg);
}

.badge-number {
    font-size: 3rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.badge-text {
    font-size: 0.875rem;
    color: var(--gray-600);
    font-weight: 500;
}

.about-text .section-tag {
    margin-bottom: 16px;
}

.about-text .section-title {
    text-align: left;
    margin-bottom: 24px;
}

.about-text p {
    color: var(--gray-600);
    margin-bottom: 16px;
}

.about-stats {
    display: flex;
    gap: 32px;
    margin-top: 32px;
}

.about-stat {
    display: flex;
    align-items: center;
    gap: 12px;
}

.about-stat i {
    width: 50px;
    height: 50px;
    background: rgba(0, 102, 204, 0.1);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--primary);
}

.about-stat strong {
    display: block;
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
}

.about-stat span {
    font-size: 0.875rem;
    color: var(--gray-600);
}

/* === CTA Section === */
.cta-section {
    padding: 100px 0;
    background: radial-gradient(circle at 50% 50%, #003060 0%, #001a35 100%);
    position: relative;
    overflow: hidden;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.cta-waves {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    opacity: 0.1;
}

.cta-waves svg {
    width: 100%;
    height: 100%;
}

.wave {
    fill: var(--white);
}

.wave1 {
    animation: wave 8s infinite ease-in-out;
}

.wave2 {
    animation: wave 10s infinite ease-in-out reverse;
}

@keyframes wave {

    0%,
    100% {
        transform: translateX(0);
    }

    50% {
        transform: translateX(-5%);
    }
}

.cta-content {
    text-align: center;
    position: relative;
    z-index: 2;
}

.cta-content h2 {
    font-size: clamp(2rem, 4vw, 3rem);
    color: var(--white);
    margin-bottom: 16px;
}

.cta-content p {
    font-size: 1.125rem;
    color: rgba(255, 255, 255, 0.9);
    max-width: 600px;
    margin: 0 auto 32px;
}

.cta-buttons {
    display: flex;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
}

.cta-section .btn-primary {
    background: var(--white);
    color: var(--primary);
}

.cta-section .btn-primary:hover {
    background: var(--gray-100);
}

/* === Contact Section === */
.contact-section {
    padding: 100px 0;
    background: var(--white);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.5fr;
    gap: 60px;
}

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.contact-card {
    display: flex;
    align-items: center;
    gap: 16px;
    padding: 20px;
    background: var(--gray-100);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.contact-card:hover {
    background: var(--white);
    box-shadow: var(--shadow);
}

.contact-icon {
    width: 50px;
    height: 50px;
    background: var(--gradient);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--white);
    flex-shrink: 0;
}

.contact-card h4 {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 2px;
}

.contact-card p,
.contact-card a {
    font-size: 0.9375rem;
    color: var(--gray-600);
    text-decoration: none;
}

.contact-card a:hover {
    color: var(--primary);
}

.social-links {
    display: flex;
    gap: 12px;
    margin-top: 20px;
}

.social-link {
    width: 48px;
    height: 48px;
    background: var(--gray-100);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--gray-600);
    font-size: 1.25rem;
    transition: var(--transition);
}

.social-link:hover {
    background: var(--gradient);
    color: var(--white);
}

.contact-form-wrapper {
    background: var(--white);
    border: 1px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.05);
}

.contact-form h3 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 32px;
}

.form-group {
    margin-bottom: 20px;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 16px;
    border: 1px solid var(--gray-200);
    border-radius: var(--radius-sm);
    font-size: 1rem;
    font-family: inherit;
    transition: var(--transition);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 102, 204, 0.1);
}

/* === Footer === */
.footer {
    background: var(--dark);
    color: var(--white);
    padding: 80px 0 0;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1.2fr;
    gap: 48px;
    padding-bottom: 60px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 20px;
    text-decoration: none;
}

.footer-brand p {
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    margin-bottom: 20px;
}

.footer-cert {
    display: flex;
    gap: 16px;
}

.footer-cert span {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.8125rem;
    color: rgba(255, 255, 255, 0.6);
}

.footer-links h4,
.footer-contact h4 {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 24px;
    color: var(--white);
}

.footer-links ul,
.footer-contact ul {
    list-style: none;
}

.footer-links li,
.footer-contact li {
    margin-bottom: 12px;
}

.footer-links a,
.footer-contact a {
    color: rgba(255, 255, 255, 0.7);
    text-decoration: none;
    font-size: 0.9375rem;
    transition: var(--transition);
}

.footer-links a:hover,
.footer-contact a:hover {
    color: var(--accent);
}

.footer-contact li {
    display: flex;
    align-items: center;
    gap: 10px;
}

.footer-contact i {
    color: var(--accent);
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
}

.footer-bottom p {
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

.thomas-badge {
    display: flex;
    align-items: center;
    gap: 10px;
}

/* === Floating Elements === */
.whatsapp-float {
    position: fixed;
    bottom: 24px;
    right: 24px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 16px 24px;
    background: #25d366;
    color: var(--white);
    border-radius: 50px;
    text-decoration: none;
    font-weight: 600;
    box-shadow: 0 8px 32px rgba(37, 211, 102, 0.4);
    z-index: 999;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.05);
}

.whatsapp-float i {
    font-size: 1.5rem;
}

.whatsapp-float span {
    display: none;
}

@media (min-width: 768px) {
    .whatsapp-float span {
        display: inline;
    }
}

.back-to-top {
    position: fixed;
    bottom: 24px;
    left: 24px;
    width: 48px;
    height: 48px;
    background: var(--gradient);
    border: none;
    border-radius: 50%;
    color: var(--white);
    font-size: 1.25rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
    z-index: 999;
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
}

.back-to-top:hover {
    transform: translateY(-3px);
}

/* === Modal === */
.modal {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.modal.active {
    opacity: 1;
    visibility: visible;
}

.modal-overlay {
    position: absolute;
    inset: 0;
    background: rgba(10, 22, 40, 0.9);
    backdrop-filter: blur(8px);
}

.modal-content {
    position: relative;
    width: 90%;
    max-width: 800px;
    max-height: 90vh;
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    transform: scale(0.9);
    transition: var(--transition);
}

.modal.active .modal-content {
    transform: scale(1);
}

.modal-close {
    position: absolute;
    top: 16px;
    right: 16px;
    width: 40px;
    height: 40px;
    background: var(--gray-100);
    border: none;
    border-radius: 50%;
    font-size: 1.25rem;
    color: var(--dark);
    cursor: pointer;
    z-index: 10;
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--gray-200);
}

.modal-body {
    padding: 40px;
}

/* === Calculator Section === */
.calculator-section {
    padding: 100px 0;
    background: linear-gradient(180deg, var(--white) 0%, var(--gray-100) 100%);
}

.calculator-wrapper {
    display: grid;
    grid-template-columns: 1.2fr 1fr;
    gap: 48px;
    align-items: start;
}

.calculator-left-col {
    display: flex;
    flex-direction: column;
    gap: 32px;
}

.calculator-card {
    background: var(--white);
    border-radius: var(--radius);
    padding: 40px;
    box-shadow: var(--shadow-lg);
}

.calculator-inputs {
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.calc-input-group label {
    display: flex;
    align-items: center;
    gap: 10px;
    font-weight: 600;
    color: var(--dark);
    margin-bottom: 12px;
    font-size: 0.9375rem;
}

.calc-input-group label i {
    color: var(--primary);
    font-size: 1rem;
}

.calc-slider-wrapper {
    display: flex;
    align-items: center;
    gap: 16px;
}

.calc-slider {
    flex: 1;
    -webkit-appearance: none;
    appearance: none;
    height: 8px;
    background: var(--gray-200);
    border-radius: 4px;
    outline: none;
    transition: var(--transition);
}

.calc-slider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 24px;
    height: 24px;
    background: var(--gradient);
    border-radius: 50%;
    cursor: pointer;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.4);
    transition: var(--transition);
}

.calc-slider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
}

.calc-slider::-moz-range-thumb {
    width: 24px;
    height: 24px;
    background: var(--gradient);
    border-radius: 50%;
    cursor: pointer;
    border: none;
    box-shadow: 0 4px 12px rgba(0, 102, 204, 0.4);
}

.calc-value-display {
    min-width: 100px;
    display: flex;
    align-items: baseline;
    justify-content: flex-end;
    gap: 4px;
    padding: 10px 16px;
    background: var(--gray-100);
    border-radius: var(--radius-sm);
    font-weight: 700;
    color: var(--primary);
}

.calc-value-display span:first-child {
    font-size: 1.25rem;
}

.calc-value-display span:last-child {
    font-size: 0.75rem;
    color: var(--gray-600);
}

.calculator-results {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.result-card {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px;
    background: var(--gray-100);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.result-card:hover {
    transform: translateY(-3px);
    box-shadow: var(--shadow);
}

.result-card.result-highlight {
    background: var(--gradient);
    color: var(--white);
    grid-column: span 2;
}

.result-card.result-success {
    background: linear-gradient(135deg, var(--success), #059669);
    color: var(--white);
    grid-column: span 2;
}

.result-icon {
    width: 48px;
    height: 48px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    flex-shrink: 0;
}

.result-card:not(.result-highlight):not(.result-success) .result-icon {
    background: var(--gradient);
    color: var(--white);
}

.result-content {
    display: flex;
    flex-direction: column;
}

.result-label {
    font-size: 0.75rem;
    font-weight: 500;
    opacity: 0.8;
    margin-bottom: 2px;
}

.result-card:not(.result-highlight):not(.result-success) .result-label {
    color: var(--gray-600);
}

.result-value {
    font-size: 1.75rem;
    font-weight: 800;
    line-height: 1;
}

.result-card:not(.result-highlight):not(.result-success) .result-value {
    color: var(--dark);
}

.result-unit {
    font-size: 0.875rem;
    font-weight: 600;
    opacity: 0.9;
}

.result-card:not(.result-highlight):not(.result-success) .result-unit {
    color: var(--gray-600);
}

/* Calculator Visual */
.calculator-visual {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.savings-animation {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 24px;
    padding: 40px;
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.damacana-stack {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 8px;
}

.damacana-item {
    width: 50px;
    height: 50px;
    background: linear-gradient(180deg, #60a5fa, #3b82f6);
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.5rem;
    animation: damacana-bounce 2s infinite ease-in-out;
}

.damacana-item:nth-child(1) {
    animation-delay: 0s;
}

.damacana-item:nth-child(2) {
    animation-delay: 0.1s;
}

.damacana-item:nth-child(3) {
    animation-delay: 0.2s;
}

.damacana-item:nth-child(4) {
    animation-delay: 0.3s;
}

.damacana-item:nth-child(5) {
    animation-delay: 0.4s;
}

.damacana-item:nth-child(6) {
    animation-delay: 0.5s;
}

.damacana-item:nth-child(7) {
    animation-delay: 0.6s;
}

.damacana-item:nth-child(8) {
    animation-delay: 0.7s;
}

@keyframes damacana-bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-5px);
    }
}

.vs-badge {
    width: 60px;
    height: 60px;
    background: var(--gradient-dark);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    font-weight: 800;
    color: var(--white);
    flex-shrink: 0;
}

.purifier-visual {
    position: relative;
    text-align: center;
}

.purifier-visual img {
    max-width: 150px;
    height: auto;
    filter: drop-shadow(0 10px 30px rgba(0, 0, 0, 0.2));
}

.purifier-badge {
    position: absolute;
    bottom: -10px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 16px;
    background: var(--success);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: 50px;
    white-space: nowrap;
}

.savings-message {
    display: flex;
    align-items: flex-start;
    gap: 16px;
    padding: 24px;
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.1), rgba(0, 102, 204, 0.1));
    border: 1px solid rgba(16, 185, 129, 0.3);
    border-radius: var(--radius);
}

.savings-message i {
    font-size: 2rem;
    color: #fbbf24;
    flex-shrink: 0;
}

.savings-message p {
    font-size: 1rem;
    color: var(--dark);
    line-height: 1.6;
    margin: 0;
}

.savings-message strong {
    color: var(--primary);
}

/* === Responsive === */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }

    .hero-text {
        order: 1;
    }

    .hero-visual {
        order: 0;
    }

    .hero-description {
        margin: 0 auto 32px;
    }

    .hero-buttons {
        justify-content: center;
    }

    .hero-stats {
        justify-content: center;
    }

    .hero-features {
        display: none;
    }

    .tech-content {
        grid-template-columns: 1fr;
    }

    .tech-visual {
        order: -1;
    }

    .why-us-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .testimonials-slider {
        grid-template-columns: 1fr;
    }

    .about-content {
        grid-template-columns: 1fr;
    }

    .about-image {
        order: -1;
    }

    .contact-grid {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 100px 32px 32px;
        box-shadow: -10px 0 40px rgba(0, 0, 0, 0.2);
        transition: var(--transition);
    }

    .nav-menu.active {
        right: 0;
    }

    .nav-menu .nav-link {
        color: var(--dark);
        padding: 16px 0;
        border-bottom: 1px solid var(--gray-200);
    }

    .nav-toggle {
        display: flex;
    }

    .nav-toggle.active span:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }

    .nav-toggle.active span:nth-child(2) {
        opacity: 0;
    }

    .nav-toggle.active span:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }

    .nav-phone span {
        display: none;
    }

    .trust-grid {
        grid-template-columns: repeat(2, 1fr);
    }

    .why-us-grid,
    .services-grid {
        grid-template-columns: 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .footer-grid {
        grid-template-columns: 1fr;
    }

    .footer-bottom {
        flex-direction: column;
        gap: 16px;
        text-align: center;
    }

    .about-stats {
        flex-wrap: wrap;
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .trust-grid {
        grid-template-columns: 1fr;
    }

    .hero-image-container {
        width: 280px;
        height: 280px;
    }

    .hero-product img {
        max-width: 220px;
    }

    .hero-stats {
        flex-direction: column;
        gap: 16px;
        align-items: center;
    }

    .cta-buttons {
        flex-direction: column;
        align-items: center;
    }
}

/* === Premium UX Enhancements === */

/* Enhanced scroll behavior */
html {
    scroll-behavior: smooth;
    scroll-padding-top: 100px;
}

/* Focus states for accessibility */
a:focus-visible,
button:focus-visible,
input:focus-visible,
select:focus-visible,
textarea:focus-visible {
    outline: 2px solid var(--primary);
    outline-offset: 2px;
    border-radius: 4px;
}

/* Premium loading skeleton */
@keyframes shimmer {
    0% {
        background-position: -200% 0;
    }

    100% {
        background-position: 200% 0;
    }
}

.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

/* Smooth hover transitions for all interactive elements */
.btn,
.nav-link,
.product-card,
.why-card,
.service-card,
.contact-card,
.testimonial-card,
.trust-item,
.social-link {
    will-change: transform;
}

/* Premium card glow effect on hover */
.product-card:hover,
.why-card:hover,
.service-card:hover {
    box-shadow:
        0 25px 50px -12px rgba(0, 102, 204, 0.15),
        0 0 30px rgba(0, 180, 216, 0.1);
}

/* Ripple effect for buttons */
.btn {
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    background: rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    transform: translate(-50%, -50%);
    transition: width 0.6s ease, height 0.6s ease;
}

.btn:active::before {
    width: 300px;
    height: 300px;
}

/* Enhanced stat counter animation */
.stat-number {
    transition: transform 0.3s ease;
}

.stat-item:hover .stat-number {
    transform: scale(1.05);
}

/* Pulse animation for CTA buttons */
@keyframes pulse-cta {

    0%,
    100% {
        box-shadow: 0 8px 32px rgba(0, 102, 204, 0.4);
    }

    50% {
        box-shadow: 0 8px 48px rgba(0, 102, 204, 0.6);
    }
}

.cta-section .btn-primary {
    animation: pulse-cta 2s infinite ease-in-out;
}

.cta-section .btn-primary:hover {
    animation: none;
}

/* WhatsApp floating button enhancement */
.whatsapp-float {
    animation: bounce-float 2s infinite ease-in-out;
}

@keyframes bounce-float {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-8px);
    }
}

.whatsapp-float:hover {
    animation: none;
    transform: scale(1.05);
}

/* Tooltip enhancements */
.whatsapp-float span {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: right center;
}

/* Contact card icon pulse */
.contact-card:hover .contact-icon i {
    animation: icon-pulse 0.6s ease;
}

@keyframes icon-pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.2);
    }
}

/* Form input focus animation */
.contact-form input:focus,
.contact-form select:focus,
.contact-form textarea:focus {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0, 102, 204, 0.15);
}

/* Enhanced testimonial cards */
.testimonial-card {
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.testimonial-card:hover {
    transform: translateY(-5px) scale(1.02);
}

.testimonial-card:hover .testimonial-rating i {
    animation: star-bounce 0.3s ease forwards;
}

.testimonial-card:hover .testimonial-rating i:nth-child(2) {
    animation-delay: 0.05s;
}

.testimonial-card:hover .testimonial-rating i:nth-child(3) {
    animation-delay: 0.1s;
}

.testimonial-card:hover .testimonial-rating i:nth-child(4) {
    animation-delay: 0.15s;
}

.testimonial-card:hover .testimonial-rating i:nth-child(5) {
    animation-delay: 0.2s;
}

@keyframes star-bounce {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.3);
    }
}

/* Trust item enhanced hover */
.trust-item::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius);
    background: var(--gradient);
    opacity: 0;
    z-index: -1;
    transition: opacity 0.3s ease;
}

.trust-item {
    position: relative;
    z-index: 1;
}

.trust-item:hover::after {
    opacity: 0.05;
}

/* Footer social links animation */
.social-link {
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

.social-link:hover {
    transform: translateY(-5px) scale(1.1);
}

/* Product card image zoom */
.product-image {
    overflow: hidden;
}

.product-image img {
    transition: transform 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.product-card:hover .product-image img {
    transform: scale(1.08) rotate(1deg);
}

/* Section reveal handled by JS IntersectionObserver - no CSS animation conflict */
/* .why-card, .service-card, .testimonial-card handled by JS animate-in */

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Smooth scrollbar styling */
::-webkit-scrollbar {
    width: 10px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: linear-gradient(180deg, var(--primary) 0%, var(--secondary) 100%);
    border-radius: 10px;
}

::-webkit-scrollbar-thumb:hover {
    background: linear-gradient(180deg, var(--primary-dark) 0%, var(--primary) 100%);
}

/* Selection styling */
::selection {
    background: var(--primary);
    color: var(--white);
}

/* Enhanced hero badge */
.hero-badge {
    animation: glow-pulse 3s infinite ease-in-out;
}

@keyframes glow-pulse {

    0%,
    100% {
        box-shadow: 0 0 10px rgba(0, 180, 216, 0.3);
    }

    50% {
        box-shadow: 0 0 25px rgba(0, 180, 216, 0.5);
    }
}

/* Loading indicator for forms */
.btn.loading {
    pointer-events: none;
    position: relative;
}

.btn.loading::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid transparent;
    border-top-color: var(--white);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

/* Smooth image loading */
img {
    transition: opacity 0.3s ease;
}

img[loading="lazy"] {
    opacity: 1;
}

img.loaded {
    opacity: 1;
}

/* Enhanced mobile touch feedback */
@media (hover: none) {

    .btn:active,
    .product-card:active,
    .nav-link:active {
        transform: scale(0.98);
        opacity: 0.9;
    }
}

/* Address styling enhancement */
.contact-card p {
    line-height: 1.5;
}

/* Better address readability */
.contact-card:first-child p {
    font-size: 0.9rem;
}

/* Premium glassmorphism for navbar */
.navbar.scrolled {
    background: rgba(255, 255, 255, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
}

/* === Multi-page / Subpage Enhancements === */

/* Subpage Header (Banner) */
.subpage-header {
    padding: 160px 0 80px;
    background: var(--gradient-dark);
    position: relative;
    text-align: center;
    overflow: hidden;
}

.subpage-header::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0; bottom: 0;
    background: url("data:image/svg+xml,%3Csvg viewBox='0 0 200 200' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.65' numOctaves='3' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%' height='100%' filter='url(%23noise)'/%3E%3C/svg%3E");
    opacity: 0.04;
}

.subpage-header .container {
    position: relative;
    z-index: 2;
}

.subpage-title {
    font-size: clamp(2.25rem, 5vw, 3.5rem);
    font-weight: 800;
    color: var(--white);
    margin-bottom: 12px;
}

.subpage-breadcrumbs {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 8px;
    color: rgba(255, 255, 255, 0.7);
    font-size: 0.9375rem;
    font-weight: 500;
}

.subpage-breadcrumbs a {
    color: var(--accent);
    text-decoration: none;
    transition: var(--transition);
}

.subpage-breadcrumbs a:hover {
    color: var(--white);
}

.subpage-breadcrumbs i {
    font-size: 0.75rem;
    opacity: 0.5;
}

/* === Mobile Product Filters Fix === */
@media (max-width: 768px) {
    .product-filters {
        justify-content: flex-start !important;
        flex-wrap: nowrap !important;
        overflow-x: auto !important;
        padding: 4px 16px 12px !important;
        margin-left: -24px !important;
        margin-right: -24px !important;
        padding-left: 24px !important;
        padding-right: 24px !important;
        margin-bottom: 32px !important;
        scrollbar-width: none; /* Firefox */
        -ms-overflow-style: none; /* IE 10+ */
        -webkit-overflow-scrolling: touch;
    }
    
    .product-filters::-webkit-scrollbar {
        display: none; /* Chrome, Safari, Opera */
    }
    
    .filter-btn {
        flex-shrink: 0 !important;
    }
}

/* === Interactive Filtration Diagram Popovers === */
/* Ring items must allow overflow for tooltips to escape the container */
.diagram-ring {
    overflow: visible !important;
}

.ring-item {
    cursor: pointer;
    transition: var(--transition);
    overflow: visible !important;
    z-index: 5;
}

.ring-item:hover {
    transform: scale(1.08);
    background: var(--gradient) !important;
    border-color: transparent !important;
    color: var(--white) !important;
    box-shadow: 0 10px 30px rgba(0, 102, 204, 0.3);
    z-index: 999;
}

.ring-item .stage-tooltip {
    position: absolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%) translateY(10px);
    width: 250px;
    background: #0a1628;
    color: var(--white);
    padding: 14px 16px;
    border-radius: 12px;
    font-size: 0.8125rem;
    font-weight: 400;
    line-height: 1.5;
    box-shadow: 0 8px 32px rgba(0,0,0,0.4);
    border: 1px solid rgba(0, 180, 216, 0.3);
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.3s cubic-bezier(0.4, 0, 0.2, 1), 
                visibility 0.3s cubic-bezier(0.4, 0, 0.2, 1), 
                transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    z-index: 9999;
    text-align: left;
    pointer-events: none;
}

.ring-item .stage-tooltip h4 {
    font-size: 0.9375rem;
    font-weight: 700;
    color: #00b4d8;
    margin-bottom: 6px;
}

.ring-item .stage-tooltip p {
    color: rgba(255, 255, 255, 0.85);
    margin: 0;
    font-size: 0.8rem;
}

.ring-item:hover .stage-tooltip {
    opacity: 1;
    visibility: visible;
    transform: translateX(-50%) translateY(0);
}

/* === 3D Tilt Card Effects === */
.tilt-card {
    transform-style: preserve-3d;
    perspective: 1000px;
}

.tilt-card-inner {
    transition: transform 0.1s ease-out;
}

/* === Product Detail Page === */
.product-detail-section {
    padding: 80px 0;
    background: var(--white);
}

.product-detail-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 60px;
    align-items: start;
}

.detail-gallery {
    background: linear-gradient(180deg, var(--gray-100) 0%, var(--white) 100%);
    border-radius: var(--radius);
    padding: 60px;
    text-align: center;
    position: relative;
    border: 1px solid var(--gray-200);
}

.detail-gallery img {
    max-width: 100%;
    height: auto;
    max-height: 400px;
    filter: drop-shadow(0 20px 40px rgba(0, 0, 0, 0.15));
}

.detail-info {
    display: flex;
    flex-direction: column;
}

.detail-category {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 12px;
}

.detail-title {
    font-size: clamp(2rem, 4vw, 2.75rem);
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 16px;
    line-height: 1.2;
}

.detail-desc {
    font-size: 1.125rem;
    color: var(--gray-600);
    margin-bottom: 32px;
    line-height: 1.7;
}

.detail-section-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 16px;
    border-left: 4px solid var(--primary);
    padding-left: 12px;
    text-align: left;
}

.detail-features {
    list-style: none;
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 12px;
    margin-bottom: 40px;
}

.detail-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--gray-600);
    font-size: 0.9375rem;
    text-align: left;
}

.detail-features li i {
    color: var(--success);
    font-size: 1rem;
}

.spec-table-wrapper {
    background: var(--gray-100);
    border-radius: var(--radius);
    padding: 24px;
    margin-bottom: 40px;
    border: 1px solid var(--gray-200);
}

.spec-table {
    width: 100%;
    border-collapse: collapse;
}

.spec-table tr {
    border-bottom: 1px solid var(--gray-200);
}

.spec-table tr:last-child {
    border-bottom: none;
}

.spec-table td {
    padding: 12px 0;
    font-size: 0.9375rem;
}

.spec-table td:first-child {
    color: var(--gray-600);
    text-align: left;
}

.spec-table td:last-child {
    font-weight: 600;
    color: var(--dark);
    text-align: right;
}

.detail-actions {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.detail-actions .btn {
    flex: 1;
    min-width: 200px;
    justify-content: center;
}

@media (max-width: 992px) {
    .product-detail-grid {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    .detail-gallery {
        padding: 40px;
    }
}

@media (max-width: 480px) {
    .detail-features {
        grid-template-columns: 1fr;
    }
    .detail-actions {
        flex-direction: column;
    }
    .detail-actions .btn {
        width: 100%;
    }
}

/* === Blog Section === */
.blog-section {
    padding: 80px 0;
    background: var(--gray-100);
}

.blog-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(350px, 1fr));
    gap: 32px;
}

.blog-card {
    background: var(--white);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.05);
    transition: var(--transition);
    display: flex;
    flex-direction: column;
    height: 100%;
    border: 1px solid var(--gray-200);
}

.blog-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(0, 102, 204, 0.2);
}

.blog-card-image {
    position: relative;
    height: 220px;
    overflow: hidden;
    background: var(--gradient-dark);
    display: flex;
    align-items: center;
    justify-content: center;
}

.blog-card-image i {
    font-size: 4rem;
    color: rgba(255, 255, 255, 0.15);
    transition: var(--transition);
}

.blog-card:hover .blog-card-image i {
    transform: scale(1.1) rotate(5deg);
    color: rgba(255, 255, 255, 0.25);
}

.blog-card-badge {
    position: absolute;
    top: 16px;
    left: 16px;
    background: var(--gradient);
    color: var(--white);
    padding: 6px 14px;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
}

.blog-card-content {
    padding: 28px;
    display: flex;
    flex-direction: column;
    flex-grow: 1;
    text-align: left;
}

.blog-card-date {
    font-size: 0.8125rem;
    color: var(--gray-600);
    margin-bottom: 12px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.blog-card-title {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 12px;
    line-height: 1.4;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 2.8em;
}

.blog-card-desc {
    font-size: 0.9375rem;
    color: var(--gray-600);
    margin-bottom: 20px;
    line-height: 1.6;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
    min-height: 4.8em;
}

.blog-card-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary);
    font-weight: 600;
    text-decoration: none;
    font-size: 0.9375rem;
    margin-top: auto;
    transition: var(--transition);
}

.blog-card-link:hover {
    gap: 12px;
    color: var(--primary-dark);
}

/* === Blog Detail Page === */
.blog-detail-section {
    padding: 80px 0;
    background: var(--white);
}

.blog-detail-container {
    max-width: 800px;
    margin: 0 auto;
}

.blog-detail-meta {
    display: flex;
    align-items: center;
    gap: 20px;
    color: var(--gray-600);
    font-size: 0.875rem;
    margin-bottom: 32px;
    padding-bottom: 20px;
    border-bottom: 1px solid var(--gray-200);
}

.blog-detail-meta span {
    display: flex;
    align-items: center;
    gap: 6px;
}

.blog-detail-content {
    font-size: 1.125rem;
    color: #334155;
    line-height: 1.8;
    text-align: left;
}

.blog-detail-content p {
    margin-bottom: 24px;
}

.blog-detail-content h2 {
    font-size: clamp(1.5rem, 3vw, 1.875rem);
    font-weight: 700;
    color: var(--dark);
    margin-top: 40px;
    margin-bottom: 20px;
}

.blog-detail-content h3 {
    font-size: clamp(1.25rem, 2.5vw, 1.5rem);
    font-weight: 700;
    color: var(--dark);
    margin-top: 32px;
    margin-bottom: 16px;
}

.blog-detail-content ul,
.blog-detail-content ol {
    margin-bottom: 24px;
    padding-left: 24px;
}

.blog-detail-content li {
    margin-bottom: 8px;
}

.blog-detail-content blockquote {
    border-left: 4px solid var(--primary);
    padding: 16px 24px;
    background: var(--gray-100);
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    font-style: italic;
    margin: 32px 0;
    color: var(--dark);
}

@media (max-width: 480px) {
    .blog-grid {
        grid-template-columns: 1fr;
    }
}

/* === Google Maps Wrapper === */
.map-wrapper {
    margin-top: 60px;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--gray-200);
    height: 450px;
    position: relative;
    z-index: 5;
}

.map-wrapper iframe {
    width: 100%;
    height: 100%;
    border: none;
}

/* === Spam Security Elements === */
.hidden-honeypot {
    display: none !important;
    position: absolute !important;
    width: 1px !important;
    height: 1px !important;
    opacity: 0 !important;
    z-index: -100 !important;
}

/* CTA heading text gradient contrast enhancement */
.cta-content h2 .gradient-text {
    background: linear-gradient(135deg, #ffe066 0%, #f59e0b 100%) !important;
    -webkit-background-clip: text !important;
    -webkit-text-fill-color: transparent !important;
}
/* Balanced Results Card with Glassmorphic Header */
.results-card {
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.75) 100%) !important;
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.4);
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.05) !important;
    display: flex;
    flex-direction: column;
    gap: 28px;
}

.results-card-title {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--dark);
    display: flex;
    align-items: center;
    gap: 10px;
    margin: 0;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--gray-200);
}

.results-card-title i {
    color: var(--primary);
}

/* Circular Amortization Gauge */
.amortization-gauge-wrapper {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 10px 0;
}

.amortization-gauge {
    position: relative;
    width: 140px;
    height: 140px;
}

.amortization-gauge svg {
    width: 100%;
    height: 100%;
    transform: rotate(-90deg);
}

.amortization-gauge circle {
    fill: none;
    stroke-width: 7;
}

.amortization-gauge .gauge-bg {
    stroke: var(--gray-200);
}

.amortization-gauge .gauge-fill {
    stroke: var(--primary);
    stroke-linecap: round;
    stroke-dasharray: 282.7;
    stroke-dashoffset: 141.35; /* Starts half-filled */
    transition: stroke-dashoffset 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.gauge-content {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
}

.gauge-value {
    font-size: 2.25rem;
    font-weight: 800;
    color: var(--primary);
    line-height: 1;
}

.gauge-unit {
    font-size: 0.8125rem;
    font-weight: 600;
    color: var(--gray-600);
    text-transform: uppercase;
    margin-top: 1px;
}

.gauge-label {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--gray-700);
    text-align: center;
}

/* Counter-rotation for diagram contents to stay upright */
.tech-diagram {
    position: relative;
    width: 480px;
    height: 480px;
    margin: 0 auto;
}

.diagram-center {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 140px;
    height: 140px;
    background: var(--gradient);
    border-radius: 50%;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2.25rem;
    box-shadow: 0 0 60px rgba(0, 180, 216, 0.5);
    z-index: 2;
}

.diagram-center span {
    font-size: 0.8125rem;
    font-weight: 600;
    margin-top: 4px;
}

.diagram-ring {
    position: absolute;
    inset: 0;
    animation: rotate 30s linear infinite;
    z-index: 3;
}

@keyframes rotate {
    to {
        transform: rotate(360deg);
    }
}

.ring-item {
    position: absolute;
    width: 90px;
    height: 90px;
    background: rgba(255, 255, 255, 0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--white);
    padding: 10px;
}

.ring-item-inner {
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
    text-align: center;
    animation: rotate-reverse 30s linear infinite;
    position: relative;
}

@keyframes rotate-reverse {
    from {
        transform: rotate(0deg);
    }
    to {
        transform: rotate(-360deg);
    }
}

/* Pause diagram and item rotation on hover */
.tech-diagram:hover .diagram-ring,
.tech-diagram:hover .ring-item-inner {
    animation-play-state: paused;
}

.cta-section::before {
    content: '';
    position: absolute;
    top: -20%;
    left: -10%;
    width: 120%;
    height: 140%;
    background: radial-gradient(circle at center, rgba(0, 180, 216, 0.15) 0%, transparent 60%);
    pointer-events: none;
    z-index: 1;
}

.cta-buttons {
    display: flex;
    gap: 20px;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
    z-index: 2;
}

.cta-buttons .btn {
    padding: 14px 32px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: var(--radius-sm);
    display: inline-flex;
    align-items: center;
    gap: 12px;
    transition: var(--transition);
}

.cta-buttons .btn-primary {
    background: var(--white);
    color: var(--primary);
    box-shadow: 0 10px 25px rgba(0, 0, 0, 0.15);
}

.cta-buttons .btn-primary:hover {
    background: var(--gray-100);
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(0, 0, 0, 0.2);
}

.cta-buttons .btn-whatsapp {
    background: #25d366;
    color: var(--white);
    box-shadow: 0 10px 25px rgba(37, 211, 102, 0.2);
}

.cta-buttons .btn-whatsapp:hover {
    background: #20ba5a;
    transform: translateY(-2px);
    box-shadow: 0 15px 30px rgba(37, 211, 102, 0.3);
}

/* === Services Installation Gallery === */
.gallery-section {
    padding: 100px 0;
    background: var(--gray-100);
}

.gallery-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 30px;
    margin-top: 48px;
}

.gallery-item {
    position: relative;
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
    background: var(--white);
    transition: var(--transition);
}

.gallery-item:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-lg);
}

.gallery-image-wrapper {
    position: relative;
    width: 100%;
    padding-bottom: 75%; /* 4:3 Aspect Ratio */
    overflow: hidden;
}

.gallery-image-wrapper img {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-item:hover .gallery-image-wrapper img {
    transform: scale(1.08);
}

.gallery-info {
    padding: 24px;
}

.gallery-info h4 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--dark);
    margin-bottom: 6px;
}

.gallery-info p {
    font-size: 0.875rem;
    color: var(--gray-600);
    margin: 0;
}

/* === Photo-only Gallery (gallery-masonry) === */
.gallery-masonry {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 24px;
    margin-top: 56px;
}

.gallery-photo {
    position: relative;
    border-radius: 16px;
    overflow: hidden;
    cursor: zoom-in;
    background: var(--gray-200);
    height: 360px;
}

.gallery-photo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.gallery-photo:hover img {
    transform: scale(1.07);
}

.gallery-photo-overlay {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 32px 20px 16px;
    background: linear-gradient(to top, rgba(10, 22, 40, 0.72) 0%, transparent 100%);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.gallery-photo:hover .gallery-photo-overlay {
    opacity: 1;
}

.gallery-photo-overlay span {
    color: white;
    font-size: 0.9375rem;
    font-weight: 700;
    letter-spacing: 0.3px;
}

@media (max-width: 768px) {
    .gallery-masonry {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }
    .gallery-photo {
        height: 250px;
    }
}

@media (max-width: 480px) {
    .gallery-masonry {
        grid-template-columns: 1fr;
        gap: 12px;
    }
    .gallery-photo {
        height: 230px;
    }
    .gallery-photo-overlay {
        opacity: 1;
    }
}


/* Blog Card Image styling with hover zoom */
.blog-card-image {
    position: relative;
    height: 220px;
    background: var(--gray-100);
    overflow: hidden;
}

.blog-card-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.5s ease;
}

.blog-card:hover .blog-card-image img {
    transform: scale(1.05);
}

/* Mobile tech diagram descriptions and styling */
.mobile-tech-desc {
    display: none;
}

@media (max-width: 768px) {
    .tech-diagram {
        width: 340px !important;
        height: 340px !important;
    }
    .diagram-center {
        width: 100px !important;
        height: 100px !important;
        font-size: 1.75rem !important;
    }
    .ring-item {
        width: 75px !important;
        height: 75px !important;
        font-size: 0.6rem !important;
    }
    .mobile-tech-desc {
        display: flex;
        align-items: flex-start;
        gap: 12px;
        margin-top: 30px;
        padding: 20px;
        background: rgba(255, 255, 255, 0.05);
        border: 1px solid rgba(255, 255, 255, 0.1);
        border-radius: 12px;
        text-align: left;
        color: var(--white);
    }
    .mobile-tech-desc i {
        color: var(--accent);
        font-size: 1.25rem;
        margin-top: 2px;
    }
    .mobile-tech-desc h4 {
        font-size: 1rem;
        font-weight: 700;
        margin-bottom: 4px;
        color: var(--accent);
    }
    .mobile-tech-desc p {
        font-size: 0.875rem;
        color: rgba(255, 255, 255, 0.8);
        margin: 0;
    }
    .ring-item .stage-tooltip {
        display: none !important;
    }
}

@media (max-width: 480px) {
    .tech-diagram {
        width: 280px !important;
        height: 280px !important;
    }
    .diagram-center {
        width: 80px !important;
        height: 80px !important;
        font-size: 1.35rem !important;
    }
    .ring-item {
        width: 65px !important;
        height: 65px !important;
        font-size: 0.5rem !important;
        padding: 4px !important;
    }
}