/* ==========================================================================
   RICHARD PLUMBERS - PREMIUM VISUAL TRANSFORMATION
   Top-Billing Plumbing Website Design System
   ========================================================================== */

/* ==========================================================================
   1. CSS Variables - Premium Palette
   ========================================================================== */
:root {
    /* Core Brand */
    --navy-deep: #060F1A;
    --navy-primary: #0A1A2F;
    --navy-mid: #0D2B45;
    --blue-professional: #1976D2;
    --blue-electric: #2196F3;
    --water-accent: #29B6F6;
    --water-light: #4FC3F7;
    --orange-accent: #FF8F00;
    --orange-warm: #FFA726;
    --copper: #C2704B;
    
    /* Neutrals */
    --white: #FFFFFF;
    --off-white: #F8FAFC;
    --gray-50: #F8FAFC;
    --gray-100: #F1F5F9;
    --gray-200: #E2E8F0;
    --gray-300: #CBD5E1;
    --gray-400: #94A3B8;
    --gray-500: #64748B;
    --gray-600: #475569;
    --gray-700: #334155;
    --gray-800: #1E293B;
    --gray-900: #0F172A;
    --dark-bg: #060F1A;
    
    /* Glass Effects */
    --glass-bg: rgba(255, 255, 255, 0.08);
    --glass-bg-hover: rgba(255, 255, 255, 0.12);
    --glass-border: rgba(255, 255, 255, 0.15);
    --glass-bg-solid: rgba(255, 255, 255, 0.95);
    --glass-blur: blur(24px);
    --glass-blur-light: blur(12px);
    
    /* Typography - Premium Stack */
    --font-display: 'Manrope', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Space Grotesk', 'Manrope', 'Inter', sans-serif;
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    
    /* Spacing System */
    --section-gap: clamp(6rem, 12vw, 10rem);
    --container-narrow: min(90vw, 1100px);
    --container-wide: min(92vw, 1300px);
    
    /* Border Radius - Architectural */
    --radius-sm: 12px;
    --radius-md: 20px;
    --radius-lg: 32px;
    --radius-xl: 48px;
    --radius-pill: 100px;
    
    /* Shadows - Premium Depth */
    --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.08), 0 1px 4px rgba(0, 0, 0, 0.04);
    --shadow-card-hover: 0 20px 60px rgba(0, 0, 0, 0.15), 0 8px 20px rgba(0, 0, 0, 0.1);
    --shadow-glass: 0 8px 32px rgba(0, 0, 0, 0.12);
    --shadow-button: 0 4px 20px rgba(255, 143, 0, 0.3);
    --shadow-glow: 0 0 60px rgba(41, 182, 246, 0.15);
    
    /* Transitions - Cinematic */
    --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
    --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
    --ease-out-expo: cubic-bezier(0.19, 1, 0.22, 1);
    --duration-fast: 0.3s;
    --duration-base: 0.5s;
    --duration-slow: 0.8s;
    --duration-cinematic: 1.2s;
    
    /* Z-Index Layers */
    --z-background: -1;
    --z-content: 1;
    --z-floating: 10;
    --z-header: 100;
    --z-overlay: 200;
    --z-modal: 300;
}

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
    text-size-adjust: 100%;
    background-color: var(--navy-deep);
}

body {
    font-family: var(--font-body);
    font-size: 16px;
    line-height: 1.7;
    color: var(--gray-300);
    background-color: var(--navy-deep);
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    letter-spacing: -0.01em;
}

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

a {
    text-decoration: none;
    color: inherit;
    transition: color var(--duration-fast) var(--ease-smooth);
}

ul, ol {
    list-style: none;
}

button {
    border: none;
    background: none;
    cursor: pointer;
    font-family: inherit;
}

/* ==========================================================================
   3. Premium Typography System
   ========================================================================== */
h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    line-height: 1.1;
    color: var(--white);
    font-weight: 700;
    letter-spacing: -0.03em;
}

/* Giant Display Typography */
.display-giant {
    font-family: var(--font-display);
    font-size: clamp(8rem, 20vw, 24rem);
    font-weight: 900;
    letter-spacing: -0.06em;
    line-height: 0.85;
    color: var(--white);
    opacity: 0.03;
    user-select: none;
    pointer-events: none;
    position: absolute;
    z-index: var(--z-background);
}

.display-large {
    font-family: var(--font-display);
    font-size: clamp(5rem, 12vw, 14rem);
    font-weight: 900;
    letter-spacing: -0.05em;
    line-height: 0.9;
}

.display-medium {
    font-family: var(--font-display);
    font-size: clamp(3rem, 7vw, 8rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    line-height: 0.95;
}

.section-title {
    font-family: var(--font-heading);
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--white);
    margin-bottom: 1rem;
    position: relative;
    z-index: var(--z-content);
}

.section-subtitle {
    font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
    color: var(--gray-400);
    max-width: 600px;
    margin: 0 auto;
    font-weight: 400;
    letter-spacing: -0.01em;
    position: relative;
    z-index: var(--z-content);
}

/* ==========================================================================
   4. Background Word System
   ========================================================================== */
.bg-word {
    position: absolute;
    font-family: var(--font-display);
    font-weight: 900;
    letter-spacing: -0.06em;
    color: var(--white);
    opacity: 0.025;
    user-select: none;
    pointer-events: none;
    z-index: var(--z-background);
    line-height: 0.85;
    white-space: nowrap;
}

.bg-word-hero {
    font-size: clamp(10rem, 28vw, 32rem);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.bg-word-about {
    font-size: clamp(8rem, 18vw, 20rem);
    top: 50%;
    right: -5%;
    transform: translateY(-50%);
}

.bg-word-services {
    font-size: clamp(7rem, 16vw, 18rem);
    top: 40%;
    left: -5%;
    transform: translateY(-50%);
}

.bg-word-areas {
    font-size: clamp(6rem, 14vw, 16rem);
    top: 50%;
    right: 50%;
    transform: translate(50%, -50%);
}

.bg-word-contact {
    font-size: clamp(7rem, 15vw, 17rem);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
}

.bg-word-footer {
    font-size: clamp(5rem, 10vw, 10rem);
    bottom: 10%;
    right: -3%;
}

/* ==========================================================================
   5. Navigation - Floating Glass Pill
   ========================================================================== */
.header {
    position: fixed;
    top: clamp(1rem, 2vw, 1.5rem);
    left: 50%;
    transform: translateX(-50%);
    width: var(--container-wide);
    z-index: var(--z-header);
    transition: all var(--duration-base) var(--ease-smooth);
}

.nav-container {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.75rem 1.5rem;
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-pill);
    transition: all var(--duration-base) var(--ease-smooth);
}

.header.scrolled .nav-container {
    background: var(--glass-bg-solid);
    border-color: rgba(0, 0, 0, 0.08);
    box-shadow: var(--shadow-glass);
}

.logo-link {
    display: flex;
    align-items: center;
    z-index: var(--z-overlay);
    flex-shrink: 0;
}

.logo {
    height: 44px;
    width: auto;
    transition: height var(--duration-fast) var(--ease-smooth);
}

.header.scrolled .logo {
    height: 38px;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 0.25rem;
}

.nav-link {
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--gray-300);
    padding: 0.6rem 1.25rem;
    border-radius: var(--radius-pill);
    transition: all var(--duration-fast) var(--ease-smooth);
    letter-spacing: -0.01em;
    position: relative;
}

.nav-link:hover,
.nav-link:focus {
    color: var(--white);
    background: rgba(255, 255, 255, 0.1);
}

.header.scrolled .nav-link {
    color: var(--gray-700);
}

.header.scrolled .nav-link:hover,
.header.scrolled .nav-link:focus {
    color: var(--navy-deep);
    background: rgba(0, 0, 0, 0.05);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    flex-shrink: 0;
}

/* ==========================================================================
   6. Buttons - Premium Interactive Elements
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.85rem 2rem;
    font-family: var(--font-body);
    font-size: 0.95rem;
    font-weight: 600;
    border-radius: var(--radius-pill);
    transition: all var(--duration-base) var(--ease-spring);
    text-align: center;
    justify-content: center;
    cursor: pointer;
    letter-spacing: -0.01em;
    position: relative;
    overflow: hidden;
    isolation: isolate;
}

.btn::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: -1;
    border-radius: inherit;
    opacity: 0;
    transition: opacity var(--duration-base) var(--ease-smooth);
}

.btn:hover::before {
    opacity: 1;
}

.btn-primary {
    background: linear-gradient(135deg, var(--orange-accent), #FF6D00);
    color: var(--white);
    box-shadow: var(--shadow-button);
}

.btn-primary::before {
    background: linear-gradient(135deg, #FF6D00, #E65100);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(255, 143, 0, 0.4);
}

.btn-whatsapp {
    background: linear-gradient(135deg, #25D366, #128C7E);
    color: var(--white);
    box-shadow: 0 4px 20px rgba(37, 211, 102, 0.3);
}

.btn-whatsapp::before {
    background: linear-gradient(135deg, #128C7E, #075E54);
}

.btn-whatsapp:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px rgba(37, 211, 102, 0.4);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.btn-outline:hover {
    border-color: var(--white);
    background: rgba(255, 255, 255, 0.1);
    transform: translateY(-2px);
}

.btn-service {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-body);
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--water-accent);
    padding: 0;
    background: none;
    border: none;
    border-radius: 0;
    transition: gap var(--duration-fast) var(--ease-smooth);
}

.btn-service::after {
    content: '→';
    transition: transform var(--duration-fast) var(--ease-smooth);
}

.btn-service:hover {
    gap: 0.75rem;
    color: var(--water-light);
}

.btn-service:hover::after {
    transform: translateX(4px);
}

.btn-header {
    padding: 0.65rem 1.5rem;
    font-size: 0.875rem;
    white-space: nowrap;
}

/* Focus States */
.btn:focus-visible,
.nav-link:focus-visible,
a:focus-visible {
    outline: 3px solid var(--orange-accent);
    outline-offset: 3px;
    border-radius: var(--radius-pill);
}

/* ==========================================================================
   7. Hero Section - Cinematic Statement
   ========================================================================== */
.hero {
    position: relative;
    min-height: 100vh;
    min-height: 100svh;
    display: flex;
    align-items: center;
    justify-content: center;
    background-color: var(--navy-deep);
    overflow: hidden;
    isolation: isolate;
}

.hero-bg-image {
    position: absolute;
    inset: -10%;
    z-index: var(--z-background);
    background-image: url('/images/plumbing.jpeg');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    animation: heroZoom 20s ease-in-out infinite alternate;
    will-change: transform;
}

@keyframes heroZoom {
    0% {
        transform: scale(1);
    }
    100% {
        transform: scale(1.08);
    }
}

.hero-overlay {
    position: absolute;
    inset: 0;
    z-index: 0;
    background: 
        radial-gradient(ellipse at 30% 50%, rgba(10, 26, 47, 0.3) 0%, transparent 60%),
        radial-gradient(ellipse at 70% 50%, rgba(13, 43, 69, 0.4) 0%, transparent 60%),
        linear-gradient(180deg, rgba(6, 15, 26, 0.85) 0%, rgba(10, 26, 47, 0.9) 50%, rgba(6, 15, 26, 0.85) 100%);
}

/* Water Ripple Effect */
.water-ripple {
    position: absolute;
    width: 600px;
    height: 600px;
    border-radius: 50%;
    border: 1px solid rgba(41, 182, 246, 0.08);
    z-index: 0;
    pointer-events: none;
    animation: waterRipple 12s ease-in-out infinite;
}

.water-ripple:nth-child(1) {
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

.water-ripple:nth-child(2) {
    width: 400px;
    height: 400px;
    bottom: -100px;
    left: -100px;
    animation-delay: 3s;
}

.water-ripple:nth-child(3) {
    width: 300px;
    height: 300px;
    top: 40%;
    right: 20%;
    animation-delay: 6s;
}

@keyframes waterRipple {
    0%, 100% {
        transform: scale(1);
        opacity: 0.3;
    }
    50% {
        transform: scale(1.5);
        opacity: 0.05;
    }
}

.hero-content {
    position: relative;
    z-index: var(--z-content);
    text-align: center;
    padding: 2rem;
    max-width: min(90vw, 900px);
}

.hero-eyebrow {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    font-weight: 500;
    letter-spacing: 0.2em;
    text-transform: uppercase;
    color: var(--water-accent);
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeSlideUp 0.8s 0.1s var(--ease-out-expo) forwards;
}

.hero-title {
    font-family: var(--font-display);
    font-size: clamp(3rem, 7vw, 6rem);
    font-weight: 900;
    letter-spacing: -0.05em;
    line-height: 1.3;
    color: var(--white);
    margin-bottom: 1.5rem;
    opacity: 0;
    animation: fadeSlideUp 0.8s 0.2s var(--ease-out-expo) forwards;
}

.hero-title-line {
    display: block;
}

.hero-title-line:last-child {
    background: linear-gradient(135deg, var(--water-accent), var(--white));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

.hero-subtitle {
    font-size: clamp(1.0625rem, 1.5vw, 1.25rem);
    color: var(--gray-300);
    margin-bottom: 2.5rem;
    max-width: 600px;
    margin-left: auto;
    margin-right: auto;
    line-height: 1.6;
    opacity: 0;
    animation: fadeSlideUp 0.8s 0.3s var(--ease-out-expo) forwards;
}

.hero-cta-group {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    margin-bottom: 3rem;
    opacity: 0;
    animation: fadeSlideUp 0.8s 0.4s var(--ease-out-expo) forwards;
}

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

/* Floating Trust Panel */
.hero-trust-panel {
    position: absolute;
    bottom: clamp(1.5rem, 3vw, 2.5rem);
    right: clamp(1.5rem, 3vw, 2.5rem);
    z-index: var(--z-floating);
    background: var(--glass-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-md);
    padding: 1.5rem 2rem;
    display: flex;
    gap: 2rem;
    animation: floatPanel 5s ease-in-out infinite;
    opacity: 0;
    animation: floatPanel 5s ease-in-out infinite, fadeSlideUp 0.8s 0.6s var(--ease-out-expo) forwards;
}

@keyframes floatPanel {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

.trust-item {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    white-space: nowrap;
}

.trust-icon {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255, 143, 0, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    color: var(--orange-accent);
    flex-shrink: 0;
}

.trust-text {
    text-align: left;
}

.trust-label {
    font-size: 0.7rem;
    font-weight: 600;
    letter-spacing: 0.1em;
    text-transform: uppercase;
    color: var(--gray-400);
    display: block;
}

.trust-value {
    font-family: var(--font-mono);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--white);
    letter-spacing: -0.02em;
}

/* ==========================================================================
   8. Section Architecture
   ========================================================================== */
.section {
    position: relative;
    padding: var(--section-gap) 0;
    isolation: isolate;
    overflow: hidden;
}

.section-dark {
    background-color: var(--navy-deep);
}

.section-navy {
    background-color: var(--navy-primary);
}

.section-glass {
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(1px);
}

.container {
    width: var(--container-narrow);
    margin: 0 auto;
    position: relative;
    z-index: var(--z-content);
}

.section-header {
    text-align: center;
    margin-bottom: clamp(3rem, 6vw, 5rem);
    position: relative;
    z-index: var(--z-content);
}

/* ==========================================================================
   9. Premium Stats Section
   ========================================================================== */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 2px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-top: clamp(3rem, 6vw, 5rem);
}

.stat-card {
    background: var(--navy-mid);
    padding: clamp(2rem, 4vw, 3rem) 2rem;
    text-align: center;
    transition: background var(--duration-base) var(--ease-smooth);
}

.stat-card:hover {
    background: rgba(25, 118, 210, 0.15);
}

.stat-number {
    font-family: var(--font-display);
    font-size: clamp(3rem, 6vw, 5rem);
    font-weight: 900;
    letter-spacing: -0.04em;
    color: var(--white);
    line-height: 1;
    margin-bottom: 0.5rem;
}

.stat-label {
    font-size: 0.95rem;
    color: var(--gray-400);
    font-weight: 500;
    letter-spacing: -0.01em;
}

/* ==========================================================================
   10. Service Cards - Luxury Dark Cards
   ========================================================================== */
.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
    gap: 1.5rem;
}

.service-card {
    position: relative;
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--navy-mid);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: all var(--duration-slow) var(--ease-smooth);
    opacity: 0;
    transform: translateY(40px);
}

.service-card.revealed {
    opacity: 1;
    transform: translateY(0);
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(41, 182, 246, 0.3);
    box-shadow: var(--shadow-card-hover), var(--shadow-glow);
}

.service-image-wrapper {
    position: relative;
    height: 280px;
    overflow: hidden;
    clip-path: polygon(0 0, 100% 0, 100% 92%, 94% 100%, 0 100%);
}

.service-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform var(--duration-cinematic) var(--ease-smooth);
}

.service-card:hover .service-image {
    transform: scale(1.08);
}

.service-image-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(
        to top,
        var(--navy-mid) 0%,
        rgba(13, 43, 69, 0.6) 40%,
        transparent 70%
    );
    transition: opacity var(--duration-base) var(--ease-smooth);
}

.service-card:hover .service-image-overlay {
    opacity: 0.5;
}

.service-content {
    padding: 1.75rem;
    position: relative;
    z-index: 1;
}

.service-icon {
    width: 48px;
    height: 48px;
    border-radius: var(--radius-sm);
    background: rgba(41, 182, 246, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    color: var(--water-accent);
    margin-bottom: 1rem;
}

.service-title {
    font-family: var(--font-heading);
    font-size: 1.35rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--white);
    margin-bottom: 0.6rem;
    transition: transform var(--duration-base) var(--ease-smooth);
}

.service-card:hover .service-title {
    transform: translateY(-2px);
}

.service-description {
    font-size: 0.9375rem;
    color: var(--gray-400);
    line-height: 1.6;
    margin-bottom: 1.25rem;
}

/* ==========================================================================
   11. About Section
   ========================================================================== */
.about-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: clamp(3rem, 6vw, 5rem);
    align-items: center;
}

.about-content h3 {
    font-family: var(--font-heading);
    font-size: clamp(1.75rem, 3vw, 2.25rem);
    font-weight: 700;
    letter-spacing: -0.03em;
    color: var(--white);
    margin-bottom: 1.5rem;
}

.about-content p {
    font-size: 1.0625rem;
    color: var(--gray-400);
    margin-bottom: 1.25rem;
    line-height: 1.75;
}

.about-image-wrapper {
    position: relative;
    border-radius: var(--radius-xl);
    overflow: hidden;
    clip-path: polygon(8% 0, 100% 0, 100% 100%, 0 100%, 0 8%);
}

.about-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    min-height: 450px;
    transition: transform var(--duration-cinematic) var(--ease-smooth);
}

.about-image-wrapper:hover .about-image {
    transform: scale(1.05);
}

.values-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1.25rem;
    margin-top: clamp(3rem, 6vw, 5rem);
}

.value-card {
    text-align: center;
    padding: 2rem 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-md);
    transition: all var(--duration-base) var(--ease-smooth);
}

.value-card:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(41, 182, 246, 0.2);
    transform: translateY(-4px);
}

.value-card i {
    font-size: 2rem;
    color: var(--water-accent);
    margin-bottom: 1rem;
}

.value-card h4 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.value-card p {
    font-size: 0.875rem;
    color: var(--gray-400);
    line-height: 1.5;
}

/* ==========================================================================
   12. Sectors Section
   ========================================================================== */
.sectors-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(380px, 1fr));
    gap: 1.5rem;
    margin-bottom: 1.5rem;
}

.sectors-grid-secondary {
    margin-bottom: 0;
}

.sector-card {
    padding: 2.5rem;
    background: var(--navy-mid);
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: all var(--duration-base) var(--ease-smooth);
    position: relative;
    overflow: hidden;
}

.sector-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 4px;
    height: 100%;
    background: linear-gradient(180deg, var(--water-accent), var(--blue-professional));
    border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
    transition: width var(--duration-base) var(--ease-smooth);
}

.sector-card:hover::before {
    width: 6px;
}

.sector-card:hover {
    background: rgba(25, 118, 210, 0.08);
    transform: translateX(4px);
}

.sector-icon {
    font-size: 2.5rem;
    color: var(--water-accent);
    margin-bottom: 1.25rem;
}

.sector-card h3 {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -0.02em;
    color: var(--white);
    margin-bottom: 0.75rem;
}

.sector-card p {
    font-size: 1rem;
    color: var(--gray-400);
    line-height: 1.7;
}

/* ==========================================================================
   13. Service Areas
   ========================================================================== */
.areas-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(160px, 1fr));
    gap: 1rem;
}

.area-card {
    text-align: center;
    padding: 2rem 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-md);
    transition: all var(--duration-base) var(--ease-spring);
    opacity: 0;
    transform: translateY(30px);
}

.area-card.revealed {
    opacity: 1;
    transform: translateY(0);
}

.area-card:hover {
    background: rgba(255, 143, 0, 0.1);
    border-color: var(--orange-accent);
    transform: translateY(-6px);
}

.area-card i {
    font-size: 1.5rem;
    color: var(--orange-accent);
    margin-bottom: 0.75rem;
}

.area-card h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--white);
    letter-spacing: -0.02em;
}

.areas-note {
    text-align: center;
    margin-top: 1.5rem;
    font-size: 0.9rem;
    color: var(--gray-500);
}

/* ==========================================================================
   14. Contact Section
   ========================================================================== */
.contact-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.25rem;
    margin-bottom: 2rem;
}

.contact-info-card {
    text-align: center;
    padding: 2rem 1.5rem;
    background: var(--navy-mid);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-md);
    transition: all var(--duration-base) var(--ease-spring);
}

.contact-info-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: rgba(41, 182, 246, 0.2);
    transform: translateY(-6px);
    box-shadow: var(--shadow-glow);
}

.contact-info-card i {
    font-size: 2rem;
    color: var(--water-accent);
    margin-bottom: 0.75rem;
}

.contact-info-card h3 {
    font-family: var(--font-heading);
    font-size: 1.1rem;
    font-weight: 600;
    color: var(--white);
    margin-bottom: 0.5rem;
    letter-spacing: -0.02em;
}

.contact-link {
    font-size: 1.1rem;
    color: var(--water-light);
    font-weight: 600;
    letter-spacing: -0.01em;
    transition: color var(--duration-fast) var(--ease-smooth);
}

.contact-link:hover {
    color: var(--orange-accent);
}

.contact-info-card p {
    font-size: 1rem;
    color: var(--gray-400);
}

.contact-location {
    text-align: center;
    padding: 2rem;
    background: linear-gradient(135deg, rgba(25, 118, 210, 0.15), rgba(41, 182, 246, 0.1));
    border: 1px solid rgba(41, 182, 246, 0.2);
    border-radius: var(--radius-lg);
    color: var(--white);
    font-size: 1.0625rem;
}

.contact-location i {
    color: var(--orange-accent);
    margin-right: 0.5rem;
}

/* ==========================================================================
   15. CTA Banner
   ========================================================================== */
.cta-banner {
    background: linear-gradient(135deg, var(--navy-primary), var(--navy-mid));
    padding: clamp(4rem, 8vw, 6rem) 0;
    text-align: center;
    color: var(--white);
    position: relative;
    overflow: hidden;
}

.cta-banner::before {
    content: '';
    position: absolute;
    width: 500px;
    height: 500px;
    border-radius: 50%;
    background: radial-gradient(circle, rgba(41, 182, 246, 0.08), transparent 70%);
    top: -100px;
    right: -100px;
    pointer-events: none;
}

.cta-title {
    font-family: var(--font-display);
    font-size: clamp(2rem, 4.5vw, 3.5rem);
    font-weight: 800;
    letter-spacing: -0.04em;
    color: var(--white);
    margin-bottom: 0.75rem;
    position: relative;
}

.cta-subtitle {
    font-size: clamp(1rem, 1.5vw, 1.125rem);
    color: var(--gray-400);
    margin-bottom: 2rem;
    position: relative;
}

.cta-actions {
    display: flex;
    gap: 1rem;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
}

/* ==========================================================================
   16. Footer - Premium Statement
   ========================================================================== */
.footer {
    background-color: var(--dark-bg);
    color: var(--gray-400);
    padding: clamp(4rem, 8vw, 6rem) 0 2rem;
    position: relative;
    overflow: hidden;
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: clamp(2rem, 4vw, 3rem);
    margin-bottom: 3rem;
    position: relative;
    z-index: var(--z-content);
}

.footer-col h3 {
    font-family: var(--font-heading);
    color: var(--white);
    font-size: 1.05rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.footer-col p {
    font-size: 0.9375rem;
    line-height: 1.7;
    margin-bottom: 0.75rem;
}

.footer-slogan {
    margin-top: 1rem;
    color: var(--gray-500);
}

.footer-logo {
    margin-bottom: 1rem;
    height: 40px;
    width: auto;
    filter: brightness(0.9);
}

.footer-col ul li {
    margin-bottom: 0.75rem;
    font-size: 0.9rem;
}

.footer-col ul li a {
    color: var(--gray-500);
    transition: color var(--duration-fast) var(--ease-smooth);
}

.footer-col ul li a:hover {
    color: var(--orange-accent);
}

.footer-col ul li i {
    margin-right: 0.5rem;
    color: var(--orange-accent);
    width: 16px;
}

.footer-bottom {
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
    text-align: center;
    font-size: 0.85rem;
    color: var(--gray-600);
    position: relative;
    z-index: var(--z-content);
}

/* ==========================================================================
   17. Scroll Reveal Animation System
   ========================================================================== */
.reveal {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity var(--duration-slow) var(--ease-out-expo),
                transform var(--duration-slow) var(--ease-out-expo);
}

.reveal.revealed {
    opacity: 1;
    transform: translateY(0);
}

.reveal-stagger > * {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity var(--duration-slow) var(--ease-out-expo),
                transform var(--duration-slow) var(--ease-out-expo);
}

.reveal-stagger > *.revealed {
    opacity: 1;
    transform: translateY(0);
}

/* ==========================================================================
   18. Mobile Floating CTA
   ========================================================================== */
.mobile-cta-bar {
    display: none;
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    z-index: var(--z-header);
    padding: 0.75rem 1rem;
    background: rgba(6, 15, 26, 0.95);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.mobile-cta-buttons {
    display: flex;
    gap: 0.75rem;
}

.mobile-cta-buttons .btn {
    flex: 1;
    font-size: 0.85rem;
    padding: 0.75rem 1rem;
}

/* WhatsApp Floating Bubble */
.whatsapp-float {
    position: fixed;
    bottom: 2rem;
    left: 2rem;
    z-index: var(--z-floating);
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: #25D366;
    color: var(--white);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.75rem;
    box-shadow: 0 8px 24px rgba(37, 211, 102, 0.4);
    transition: all var(--duration-base) var(--ease-spring);
    animation: floatBubble 3s ease-in-out infinite;
}

.whatsapp-float:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 32px rgba(37, 211, 102, 0.5);
}

@keyframes floatBubble {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-8px);
    }
}

/* ==========================================================================
   19. Animations
   ========================================================================== */
@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(40px);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

/* ==========================================================================
   20. Reduced Motion
   ========================================================================== */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
        scroll-behavior: auto !important;
    }
    
    .hero-bg-image {
        animation: none;
    }
    
    .water-ripple {
        display: none;
    }
    
    .hero-trust-panel {
        animation: none;
    }
    
    .whatsapp-float {
        animation: none;
    }
    
    .reveal,
    .reveal-stagger > * {
        opacity: 1;
        transform: none;
    }
}

/* ==========================================================================
   21. Responsive - Mobile Experience
   ========================================================================== */
@media (max-width: 1024px) {
    .about-grid {
        grid-template-columns: 1fr;
    }
    
    .about-image-wrapper {
        order: -1;
        max-height: 400px;
    }
    
    .footer-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-trust-panel {
        display: none;
    }
    
    .mobile-cta-bar {
        display: block;
    }
    
    .whatsapp-float {
        bottom: 5rem;
        left: 1rem;
        width: 50px;
        height: 50px;
        font-size: 1.25rem;
    }
    
    body {
        padding-bottom: 80px;
    }
}

@media (max-width: 768px) {
    .header {
        top: 0.5rem;
        width: 95vw;
    }
    
    .nav-container {
        padding: 0.6rem 1rem;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 100%;
        height: 100vh;
        height: 100svh;
        background: var(--navy-deep);
        flex-direction: column;
        padding: 6rem 2rem 2rem;
        transition: right var(--duration-base) var(--ease-smooth);
        z-index: var(--z-overlay);
        gap: 0.5rem;
        border-radius: 0;
    }
    
    .nav-menu.active {
        right: 0;
    }
    
    .nav-link {
        display: block;
        padding: 1rem 1.5rem;
        font-size: 1.25rem;
        color: var(--white);
        border-radius: var(--radius-md);
    }
    
    .nav-link:hover {
        background: rgba(255, 255, 255, 0.05);
    }
    
    .mobile-toggle {
        display: flex;
        flex-direction: column;
        gap: 5px;
        z-index: var(--z-modal);
        padding: 0.5rem;
    }
    
    .hamburger-line {
        width: 26px;
        height: 2.5px;
        background-color: var(--white);
        border-radius: 3px;
        transition: all var(--duration-base) var(--ease-smooth);
    }
    
    .mobile-toggle.active .hamburger-line:nth-child(1) {
        transform: rotate(45deg) translate(5px, 5px);
    }
    
    .mobile-toggle.active .hamburger-line:nth-child(2) {
        opacity: 0;
    }
    
    .mobile-toggle.active .hamburger-line:nth-child(3) {
        transform: rotate(-45deg) translate(5px, -5px);
    }
    
    .header.scrolled .hamburger-line {
        background-color: var(--gray-800);
    }
    
    .services-grid {
        grid-template-columns: 1fr;
    }
    
    .sectors-grid,
    .sectors-grid-secondary {
        grid-template-columns: 1fr;
    }
    
    .areas-grid {
        grid-template-columns: repeat(2, 1fr);
    }
    
    .values-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .cta-actions {
        flex-direction: column;
        align-items: center;
    }
    
    .bg-word {
        display: none;
    }
    
    .footer-grid {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .footer-col {
        align-items: center;
    }
}

@media (min-width: 769px) {
    .mobile-toggle {
        display: none;
    }
}

@media (max-width: 480px) {
    .hero-cta-group {
        flex-direction: column;
    }
    
    .btn-hero {
        width: 100%;
    }
    
    .areas-grid {
        grid-template-columns: 1fr;
    }
    
    .values-grid {
        grid-template-columns: 1fr;
    }
    
    .contact-grid {
        grid-template-columns: 1fr;
    }
    
    .hero-title {
        font-size: clamp(2.5rem, 10vw, 3.5rem);
    }
    
    .service-image-wrapper {
        height: 200px;
    }
}

/* ==========================================================================
   22. Print Styles
   ========================================================================== */
@media print {
    .header,
    .footer,
    .cta-banner,
    .hero-cta-group,
    .mobile-toggle,
    .mobile-cta-bar,
    .whatsapp-float,
    .hero-trust-panel,
    .bg-word,
    .water-ripple {
        display: none !important;
    }
    
    body {
        font-size: 12pt;
        color: #000;
        background: #fff;
    }
    
    .section {
        padding: 1rem 0;
    }
    
    a[href]::after {
        content: " (" attr(href) ")";
    }
}