/* ===== CSS Custom Properties (Design Tokens) ===== */
:root {
    /* Primary Colors - Healthcare Green/Blue */
    --primary: #0d9e4f;
    --primary-dark: #087a3c;
    --primary-light: #12c760;
    --primary-glow: rgba(13, 158, 79, 0.3);

    /* Secondary - Medical Blue */
    --secondary: #1565c0;
    --secondary-dark: #0d47a1;
    --secondary-light: #42a5f5;

    /* Accent */
    --accent: #00bfa5;
    --accent-light: #1de9b6;

    /* Warm for CTA */
    --warm: #ff6d00;
    --warm-light: #ff9100;

    /* Neutrals */
    --white: #ffffff;
    --off-white: #f5f9f7;
    --light-gray: #e8f5e9;
    --gray: #90a4ae;
    --dark: #1a2332;
    --darker: #0f1923;

    /* WhatsApp */
    --whatsapp: #25D366;
    --whatsapp-dark: #128C7E;

    /* Typography */
    --font-primary: 'Poppins', sans-serif;
    --font-display: 'Playfair Display', serif;

    /* Spacing */
    --section-padding: 100px 0;
    --container-max: 1200px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition: 0.3s ease;
    --transition-slow: 0.5s ease;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --radius-full: 50%;

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0,0,0,0.08);
    --shadow-md: 0 8px 32px rgba(0,0,0,0.1);
    --shadow-lg: 0 16px 48px rgba(0,0,0,0.12);
    --shadow-xl: 0 24px 64px rgba(0,0,0,0.15);
    --shadow-glow: 0 0 40px rgba(13, 158, 79, 0.15);
}

/* ===== Reset & Base ===== */
*, *::before, *::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
    scroll-padding-top: 80px;
}

body {
    font-family: var(--font-primary);
    color: var(--dark);
    background: var(--white);
    overflow-x: hidden;
    line-height: 1.6;
}

a {
    text-decoration: none;
    color: inherit;
    transition: var(--transition);
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Preloader ===== */
#preloader {
    position: fixed;
    inset: 0;
    background: linear-gradient(135deg, var(--primary-dark), var(--secondary-dark));
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 99999;
    transition: opacity 0.6s ease, visibility 0.6s ease;
}

#preloader.loaded {
    opacity: 0;
    visibility: hidden;
}

.preloader-inner {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
}

.preloader-inner i {
    font-size: 3rem;
    color: var(--white);
    animation: heartbeat 1s ease-in-out infinite;
    z-index: 2;
}

.pulse-ring {
    position: absolute;
    width: 100px;
    height: 100px;
    border-radius: 50%;
    border: 3px solid rgba(255,255,255,0.4);
    animation: pulse-ring 1.5s ease-out infinite;
}

@keyframes pulse-ring {
    0% { transform: scale(0.5); opacity: 1; }
    100% { transform: scale(1.5); opacity: 0; }
}

@keyframes heartbeat {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.2); }
}

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

.navbar.scrolled {
    background: rgba(255,255,255,0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    box-shadow: var(--shadow-md);
    padding: 8px 0;
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    z-index: 1001;
}

.logo-img {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

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

.logo-name {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: 2px;
    line-height: 1.1;
    transition: var(--transition);
}

.logo-sub {
    font-size: 0.65rem;
    font-weight: 500;
    color: rgba(255,255,255,0.8);
    letter-spacing: 1px;
    text-transform: uppercase;
    transition: var(--transition);
}

.navbar.scrolled .logo-name { color: var(--primary-dark); }
.navbar.scrolled .logo-sub { color: var(--gray); }

.nav-links {
    display: flex;
    align-items: center;
    gap: 8px;
    list-style: none;
}

.nav-link {
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 500;
    color: rgba(255,255,255,0.9);
    border-radius: var(--radius-sm);
    position: relative;
    transition: var(--transition);
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: 4px;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 2px;
    background: var(--accent-light);
    border-radius: 2px;
    transition: var(--transition);
}

.nav-link:hover::after,
.nav-link.active::after {
    width: 60%;
}

.nav-link:hover { color: var(--white); }

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

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

.navbar.scrolled .nav-link::after {
    background: var(--primary);
}

.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    background: var(--whatsapp);
    color: var(--white) !important;
    border-radius: var(--radius-xl);
    font-weight: 600;
    font-size: 0.9rem;
    box-shadow: 0 4px 15px rgba(37, 211, 102, 0.4);
    transition: var(--transition);
}

.nav-cta:hover {
    background: var(--whatsapp-dark);
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(37, 211, 102, 0.5);
}

.hamburger {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.hamburger span {
    width: 28px;
    height: 3px;
    background: var(--white);
    border-radius: 4px;
    transition: var(--transition);
}

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

.hamburger.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}

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

.hamburger.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* ===== Hero Section ===== */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

.hero-bg {
    position: absolute;
    inset: 0;
    z-index: 0;
}

.hero-bg-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    filter: brightness(0.3);
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        135deg,
        rgba(13, 21, 35, 0.85) 0%,
        rgba(13, 158, 79, 0.45) 50%,
        rgba(21, 101, 192, 0.55) 100%
    );
}

.hero-particles {
    position: absolute;
    inset: 0;
    z-index: 1;
    pointer-events: none;
}

.hero-particles .particle {
    position: absolute;
    width: 6px;
    height: 6px;
    background: rgba(255,255,255,0.15);
    border-radius: 50%;
    animation: float-up linear infinite;
}

@keyframes float-up {
    0% { transform: translateY(100vh) scale(0); opacity: 0; }
    10% { opacity: 1; }
    90% { opacity: 1; }
    100% { transform: translateY(-10vh) scale(1); opacity: 0; }
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    padding: 120px 24px 80px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 24px;
    background: rgba(255,255,255,0.1);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255,255,255,0.2);
    border-radius: var(--radius-xl);
    color: var(--accent-light);
    font-size: 0.85rem;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero-badge i {
    color: #ffd700;
}

.hero-title {
    margin-bottom: 16px;
}

.hero-title-top {
    display: block;
    font-family: var(--font-display);
    font-size: clamp(3rem, 8vw, 6rem);
    font-weight: 900;
    color: var(--white);
    letter-spacing: 6px;
    text-shadow: 0 4px 30px rgba(13, 158, 79, 0.5);
    line-height: 1.1;
}

.hero-title-mid {
    display: block;
    font-size: clamp(1.2rem, 3vw, 2rem);
    font-weight: 300;
    color: rgba(255,255,255,0.9);
    letter-spacing: 8px;
    text-transform: uppercase;
    margin-top: 8px;
}

.hero-tagline {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 20px;
    margin: 24px 0;
    color: var(--accent-light);
    font-size: 1.1rem;
    font-weight: 600;
    letter-spacing: 2px;
}

.tagline-line {
    width: 60px;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--accent-light));
}

.tagline-line:last-child {
    background: linear-gradient(90deg, var(--accent-light), transparent);
}

.hero-subtitle {
    font-family: var(--font-display);
    font-size: clamp(1.3rem, 3vw, 2rem);
    color: rgba(255,255,255,0.85);
    margin-bottom: 40px;
}

.hero-buttons {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 36px;
    border-radius: var(--radius-xl);
    font-family: var(--font-primary);
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: linear-gradient(135deg, var(--whatsapp), var(--whatsapp-dark));
    color: var(--white);
    box-shadow: 0 8px 32px rgba(37, 211, 102, 0.4);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(37, 211, 102, 0.5);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.5);
}

.btn-outline:hover {
    background: rgba(255,255,255,0.1);
    border-color: var(--white);
    transform: translateY(-3px);
}

.btn-white {
    background: var(--white);
    color: var(--primary-dark);
    box-shadow: 0 8px 32px rgba(0,0,0,0.2);
}

.btn-white:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0,0,0,0.3);
}

.btn-outline-white {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255,255,255,0.6);
}

.btn-outline-white:hover {
    background: rgba(255,255,255,0.15);
    border-color: var(--white);
    transform: translateY(-3px);
}

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

.btn-glow::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(
        45deg,
        transparent 40%,
        rgba(255,255,255,0.15) 50%,
        transparent 60%
    );
    animation: btn-shine 3s ease-in-out infinite;
}

@keyframes btn-shine {
    0% { transform: translateX(-100%) rotate(45deg); }
    100% { transform: translateX(100%) rotate(45deg); }
}

/* Hero Stats */
.hero-stats {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 32px;
    padding: 24px 48px;
    background: rgba(255,255,255,0.08);
    backdrop-filter: blur(20px);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: var(--radius-lg);
}

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

.stat-number {
    font-size: 2rem;
    font-weight: 800;
    color: var(--accent-light);
    display: inline;
}

.stat-plus {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-light);
}

.stat-label {
    display: block;
    font-size: 0.8rem;
    color: rgba(255,255,255,0.7);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.stat-divider {
    width: 1px;
    height: 40px;
    background: rgba(255,255,255,0.2);
}

/* Scroll Indicator */
.hero-scroll {
    position: absolute;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.hero-scroll a {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: rgba(255,255,255,0.6);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 2px;
    transition: var(--transition);
}

.hero-scroll a:hover { color: var(--white); }

.scroll-mouse {
    width: 24px;
    height: 38px;
    border: 2px solid rgba(255,255,255,0.4);
    border-radius: 14px;
    display: flex;
    justify-content: center;
    padding-top: 8px;
}

.scroll-wheel {
    width: 3px;
    height: 8px;
    background: rgba(255,255,255,0.6);
    border-radius: 3px;
    animation: scroll-anim 2s ease-in-out infinite;
}

@keyframes scroll-anim {
    0%, 100% { transform: translateY(0); opacity: 1; }
    50% { transform: translateY(8px); opacity: 0.3; }
}

/* ===== Section Commons ===== */
.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 6px 20px;
    background: linear-gradient(135deg, rgba(13,158,79,0.1), rgba(21,101,192,0.1));
    border: 1px solid rgba(13,158,79,0.2);
    border-radius: var(--radius-xl);
    color: var(--primary);
    font-size: 0.85rem;
    font-weight: 600;
    margin-bottom: 16px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.section-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    color: var(--dark);
    margin-bottom: 16px;
    line-height: 1.2;
}

.section-desc {
    font-size: 1.1rem;
    color: var(--gray);
    max-width: 600px;
    margin: 0 auto;
    line-height: 1.7;
}

/* ===== Services Section ===== */
.services {
    padding: var(--section-padding);
    position: relative;
    background: var(--off-white);
}

.section-bg-pattern {
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(13,158,79,0.03) 0%, transparent 50%),
        radial-gradient(circle at 80% 20%, rgba(21,101,192,0.03) 0%, transparent 50%);
    pointer-events: none;
}

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

.service-card {
    position: relative;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px 24px;
    text-align: center;
    border: 1px solid rgba(0,0,0,0.05);
    transition: var(--transition-slow);
    overflow: hidden;
}

.service-card-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle, rgba(13,158,79,0.08) 0%, transparent 70%);
    opacity: 0;
    transition: var(--transition-slow);
    pointer-events: none;
}

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

.service-card:hover {
    transform: translateY(-8px);
    box-shadow: var(--shadow-xl);
    border-color: rgba(13,158,79,0.2);
}

.service-card-highlight {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    border: none;
}

.service-card-highlight .service-desc { color: rgba(255,255,255,0.85); }
.service-card-highlight .service-link { color: var(--white); border-color: rgba(255,255,255,0.4); }
.service-card-highlight .service-link:hover { background: rgba(255,255,255,0.2); border-color: var(--white); }

.service-badge {
    position: absolute;
    top: 16px;
    right: -32px;
    background: var(--warm);
    color: var(--white);
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1px;
    padding: 6px 40px;
    transform: rotate(45deg);
}

.service-icon-wrap {
    width: 120px;
    height: 120px;
    margin: 0 auto 24px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.service-card:hover .service-icon-wrap {
    transform: scale(1.05);
}

.service-icon-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-lg);
}

.service-name {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.service-desc {
    font-size: 0.9rem;
    color: var(--gray);
    margin-bottom: 20px;
    line-height: 1.6;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 10px 24px;
    border: 2px solid rgba(13,158,79,0.3);
    border-radius: var(--radius-xl);
    color: var(--primary);
    font-weight: 600;
    font-size: 0.85rem;
    transition: var(--transition);
}

.service-link:hover {
    background: var(--primary);
    color: var(--white);
    border-color: var(--primary);
    transform: translateX(4px);
}

.service-link i {
    transition: var(--transition);
}

.service-link:hover i {
    transform: translateX(4px);
}

/* ===== Labs Section ===== */
.labs {
    padding: var(--section-padding);
    background: var(--white);
}

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

.lab-card {
    perspective: 1000px;
}

.lab-card-inner {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    border: 2px solid var(--light-gray);
    transition: var(--transition-slow);
    position: relative;
    overflow: hidden;
}

.lab-card-inner::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--accent));
    transform: scaleX(0);
    transition: var(--transition-slow);
}

.lab-card:hover .lab-card-inner::before {
    transform: scaleX(1);
}

.lab-card:hover .lab-card-inner {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
    border-color: rgba(13,158,79,0.3);
}

.lab-logo-wrap {
    height: 80px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
}

.lab-logo-text {
    font-size: 1.5rem;
    font-weight: 800;
    line-height: 1.3;
}

.metropolis-logo {
    color: var(--secondary);
    letter-spacing: 2px;
}

.metro-m { color: #c62828; font-size: 1.8rem; }
.metro-l { color: #c62828; }
.metro-sub { display: block; font-size: 0.7rem; font-weight: 500; color: var(--gray); letter-spacing: 1px; margin-top: 4px; }

.thyrocare-logo {
    color: #1a237e;
    font-family: var(--font-primary);
}

.thyro-heart { color: #e53935; font-size: 1.2rem; }
.thyro-reg { font-size: 0.7rem; vertical-align: super; }
.thyro-sub { display: block; font-size: 0.75rem; font-weight: 500; color: #ff6f00; margin-top: 4px; }

.general-logo {
    color: var(--primary-dark);
}

.gen-g { 
    color: var(--primary); 
    font-size: 2rem; 
    font-weight: 900; 
}

.gen-sub { 
    display: block; 
    font-size: 0.85rem; 
    font-weight: 700; 
    letter-spacing: 3px; 
    color: var(--dark); 
}

.lab-desc {
    font-size: 0.95rem;
    color: var(--gray);
    margin-bottom: 16px;
}

.lab-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.lab-features span {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--primary);
    font-weight: 500;
}

.lab-features i {
    font-size: 0.8rem;
}

/* ===== Why Choose Us ===== */
.why-us {
    padding: var(--section-padding);
    background: linear-gradient(135deg, #f0faf4 0%, #e8f0fe 100%);
    position: relative;
}

.features-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 24px;
}

.feature-card {
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 36px 20px;
    text-align: center;
    border: 1px solid rgba(0,0,0,0.05);
    transition: var(--transition-slow);
    position: relative;
}

.feature-card::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--accent));
    border-radius: 3px;
    transition: var(--transition-slow);
}

.feature-card:hover::after {
    width: 80%;
}

.feature-card:hover {
    transform: translateY(-6px);
    box-shadow: var(--shadow-lg);
}

.feature-icon {
    width: 72px;
    height: 72px;
    margin: 0 auto 20px;
    background: linear-gradient(135deg, rgba(13,158,79,0.1), rgba(21,101,192,0.1));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.feature-card:hover .feature-icon {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    transform: scale(1.1) rotate(5deg);
}

.feature-icon i {
    font-size: 1.8rem;
    color: var(--primary);
    transition: var(--transition);
}

.feature-card:hover .feature-icon i {
    color: var(--white);
}

.feature-card h3 {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 12px;
    color: var(--dark);
}

.feature-card p {
    font-size: 0.85rem;
    color: var(--gray);
    line-height: 1.6;
}

/* ===== CTA Banner ===== */
.cta-banner {
    padding: 80px 0;
    background: linear-gradient(135deg, var(--primary-dark) 0%, var(--secondary-dark) 100%);
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(255,255,255,0.05) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-banner::after {
    content: '';
    position: absolute;
    bottom: -50%;
    left: -20%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(255,255,255,0.03) 0%, transparent 70%);
    border-radius: 50%;
}

.cta-content {
    position: relative;
    z-index: 1;
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 40px;
}

.cta-text h2 {
    font-family: var(--font-display);
    font-size: clamp(1.5rem, 3vw, 2.5rem);
    color: var(--white);
    margin-bottom: 12px;
}

.cta-highlight {
    color: var(--accent-light);
}

.cta-text p {
    color: rgba(255,255,255,0.75);
    font-size: 1.05rem;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    flex-shrink: 0;
}

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

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

.contact-info {
    display: flex;
    flex-direction: column;
    gap: 24px;
}

.contact-card {
    display: flex;
    align-items: flex-start;
    gap: 20px;
    padding: 24px;
    background: var(--off-white);
    border-radius: var(--radius-md);
    border: 1px solid rgba(0,0,0,0.04);
    transition: var(--transition);
}

.contact-card:hover {
    transform: translateX(8px);
    box-shadow: var(--shadow-md);
    border-color: rgba(13,158,79,0.2);
}

.contact-icon {
    width: 56px;
    height: 56px;
    min-width: 56px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 1.2rem;
}

.contact-details h3 {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--gray);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.contact-number {
    display: block;
    font-size: 1.3rem;
    font-weight: 700;
    color: var(--primary-dark);
    transition: var(--transition);
}

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

.contact-details p {
    font-size: 0.95rem;
    color: var(--dark);
    line-height: 1.6;
}

.contact-map {
    height: 500px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
    border: 3px solid var(--light-gray);
}

/* ===== Footer ===== */
.footer {
    background: var(--darker);
    padding: 60px 0 0;
    color: rgba(255,255,255,0.7);
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 40px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 16px;
}

.footer-logo-img {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    object-fit: cover;
}

.footer-name {
    font-size: 1.3rem;
    font-weight: 800;
    color: var(--white);
    letter-spacing: 2px;
    display: block;
    line-height: 1.1;
}

.footer-sub {
    font-size: 0.7rem;
    color: rgba(255,255,255,0.5);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-tagline {
    font-family: var(--font-display);
    font-size: 1.1rem;
    color: var(--accent-light);
}

.footer-links h4,
.footer-contact-info h4 {
    color: var(--white);
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 20px;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.footer-links a {
    display: block;
    padding: 6px 0;
    color: rgba(255,255,255,0.6);
    font-size: 0.9rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--accent-light);
    transform: translateX(6px);
}

.footer-contact-info p {
    display: flex;
    align-items: center;
    gap: 10px;
    margin-bottom: 12px;
    font-size: 0.9rem;
}

.footer-contact-info a {
    color: rgba(255,255,255,0.6);
}

.footer-contact-info a:hover {
    color: var(--accent-light);
}

.footer-contact-info i {
    color: var(--primary-light);
    width: 16px;
}

.footer-bottom {
    padding: 24px 0;
    text-align: center;
    font-size: 0.85rem;
}

.footer-motto {
    color: var(--primary-light);
    font-weight: 600;
    margin-top: 4px;
}

/* ===== WhatsApp Floating Button ===== */
.whatsapp-float {
    position: fixed;
    bottom: 30px;
    right: 30px;
    width: 64px;
    height: 64px;
    background: var(--whatsapp);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--white);
    font-size: 2rem;
    box-shadow: 0 6px 24px rgba(37, 211, 102, 0.5);
    z-index: 999;
    transition: var(--transition);
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 8px 32px rgba(37, 211, 102, 0.6);
}

.whatsapp-pulse {
    position: absolute;
    inset: -4px;
    border-radius: 50%;
    border: 3px solid var(--whatsapp);
    animation: wa-pulse 2s ease-out infinite;
}

@keyframes wa-pulse {
    0% { transform: scale(1); opacity: 0.8; }
    100% { transform: scale(1.4); opacity: 0; }
}

.whatsapp-tooltip {
    position: absolute;
    right: 76px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--dark);
    color: var(--white);
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    font-weight: 500;
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: var(--transition);
}

.whatsapp-tooltip::after {
    content: '';
    position: absolute;
    right: -6px;
    top: 50%;
    transform: translateY(-50%);
    border: 6px solid transparent;
    border-left-color: var(--dark);
}

.whatsapp-float:hover .whatsapp-tooltip {
    opacity: 1;
}

/* ===== Back to Top ===== */
.back-to-top {
    position: fixed;
    bottom: 30px;
    left: 30px;
    width: 48px;
    height: 48px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 1.1rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 999;
    box-shadow: var(--shadow-md);
}

.back-to-top.visible {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.back-to-top:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-lg);
}

/* ===== Responsive Design ===== */
@media (max-width: 1024px) {
    .services-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .features-grid {
        grid-template-columns: repeat(3, 1fr);
    }
    
    .cta-content {
        flex-direction: column;
        text-align: center;
    }
}

@media (max-width: 768px) {
    :root {
        --section-padding: 70px 0;
    }
    
    .hamburger {
        display: flex;
    }
    
    .nav-links {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 360px;
        height: 100vh;
        background: var(--white);
        flex-direction: column;
        padding: 100px 32px 40px;
        box-shadow: var(--shadow-xl);
        transition: var(--transition-slow);
        gap: 8px;
    }
    
    .nav-links.active {
        right: 0;
    }
    
    .nav-link {
        color: var(--dark) !important;
        font-size: 1.1rem;
        padding: 12px 16px;
        width: 100%;
    }
    
    .nav-link::after {
        display: none;
    }
    
    .nav-cta {
        width: 100%;
        justify-content: center;
        margin-top: 16px;
    }
    
    .labs-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-map {
        height: 350px;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
        padding: 24px;
    }
    
    .stat-divider {
        width: 60px;
        height: 1px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
    }
    
    .cta-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .cta-buttons .btn {
        justify-content: center;
    }
}

@media (max-width: 480px) {
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-buttons .btn {
        width: 100%;
        justify-content: center;
    }
    
    .hero-tagline {
        flex-direction: column;
        gap: 8px;
    }
    
    .tagline-line {
        width: 40px;
    }
    
    .whatsapp-float {
        bottom: 20px;
        right: 20px;
        width: 56px;
        height: 56px;
        font-size: 1.7rem;
    }
    
    .back-to-top {
        bottom: 20px;
        left: 20px;
        width: 42px;
        height: 42px;
    }
}

/* ===== Utility: Mobile overlay ===== */
.nav-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.5);
    z-index: 999;
    opacity: 0;
    visibility: hidden;
    transition: var(--transition);
}

.nav-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* ===== PROMO POPUP MODAL ===== */
.promo-modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.75);
    z-index: 9999;
    align-items: center;
    justify-content: center;
    backdrop-filter: blur(5px);
    opacity: 0;
    transition: opacity 0.3s ease;
}

.promo-modal.show {
    display: flex;
    opacity: 1;
}

.promo-modal-content {
    position: relative;
    background: var(--white);
    border-radius: var(--radius-lg);
    padding: 10px;
    max-width: 90%;
    width: 450px;
    box-shadow: var(--shadow-xl);
    transform: scale(0.9);
    transition: transform 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    text-align: center;
}

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

.promo-modal-close {
    position: absolute;
    top: -15px;
    right: -15px;
    width: 36px;
    height: 36px;
    background: var(--primary);
    color: var(--white);
    border: none;
    border-radius: 50%;
    font-size: 24px;
    line-height: 1;
    cursor: pointer;
    box-shadow: var(--shadow-md);
    z-index: 2;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.promo-modal-close:hover {
    background: var(--primary-dark);
    transform: rotate(90deg);
}

.promo-img {
    width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
    display: block;
}

.promo-actions {
    margin-top: 15px;
    margin-bottom: 5px;
}