/* ============================================
   CSS CUSTOM PROPERTIES & RESET
   ============================================ */
:root {
    --primary: #1a1a2e;
    --primary-light: #16213e;
    --secondary: #c9a84c;
    --secondary-light: #e8c96d;
    --accent: #4a90a4;
    --accent-dark: #2d6b7f;
    --surface: #0d1117;
    --surface-elevated: #161b22;
    --surface-glass: rgba(22, 27, 34, 0.7);
    --text-primary: #f0ece2;
    --text-secondary: #a8a29e;
    --text-muted: #6b6b6b;
    --gradient-primary: linear-gradient(135deg, #1a1a2e 0%, #16213e 50%, #0f3460 100%);
    --gradient-secondary: linear-gradient(135deg, #c9a84c 0%, #e8c96d 50%, #f5dfa0 100%);
    --gradient-accent: linear-gradient(135deg, #4a90a4 0%, #2d6b7f 100%);
    --gradient-glow: radial-gradient(ellipse at center, rgba(201, 168, 76, 0.15) 0%, transparent 70%);
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 32px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 64px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(201, 168, 76, 0.2);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 24px;
    --radius-xl: 32px;
    --font-main: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-display: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-bounce: 0.6s cubic-bezier(0.68, -0.55, 0.265, 1.55);
}

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    font-family: var(--font-main);
    background: var(--surface);
    color: var(--text-primary);
    line-height: 1.7;
    overflow-x: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ============================================
   READING PROGRESS BAR
   ============================================ */
.progress-bar {
    position: fixed;
    top: 0;
    left: 0;
    width: 0%;
    height: 3px;
    background: var(--gradient-secondary);
    z-index: 10000;
    transition: width 0.1s linear;
    box-shadow: 0 0 10px rgba(201, 168, 76, 0.5);
}

/* ============================================
   NAVIGATION
   ============================================ */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 9999;
    padding: 1.2rem 0;
    transition: all var(--transition-normal);
}

.navbar.scrolled {
    padding: 0.8rem 0;
    background: rgba(13, 17, 23, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(201, 168, 76, 0.1);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.25rem;
}

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--gradient-secondary);
    border-radius: var(--radius-sm);
    color: var(--primary);
    font-weight: 900;
    font-size: 1.1rem;
}

.nav-menu {
    display: flex;
    align-items: center;
    gap: 2rem;
    list-style: none;
}

.nav-link {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
}

.nav-link::after {
    content: '';
    position: absolute;
    bottom: -4px;
    left: 0;
    width: 0;
    height: 2px;
    background: var(--gradient-secondary);
    transition: width var(--transition-normal);
}

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

.nav-link:hover::after {
    width: 100%;
}

.nav-cta {
    background: var(--gradient-secondary);
    color: var(--primary) !important;
    padding: 0.6rem 1.2rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
}

.nav-cta::after {
    display: none;
}

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

.nav-toggle span {
    width: 25px;
    height: 2px;
    background: var(--text-primary);
    transition: all var(--transition-fast);
    border-radius: 2px;
}

.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);
}

/* ============================================
   BUTTONS
   ============================================ */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.9rem 2rem;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.95rem;
    text-decoration: none;
    transition: all var(--transition-normal);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-secondary);
    color: var(--primary);
    box-shadow: 0 4px 20px rgba(201, 168, 76, 0.3);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 32px rgba(201, 168, 76, 0.4);
}

.btn-ghost {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.2);
}

.btn-ghost:hover {
    border-color: var(--secondary);
    color: var(--secondary);
    background: rgba(201, 168, 76, 0.05);
}

.btn-large {
    padding: 1.2rem 2.5rem;
    font-size: 1.1rem;
}

.btn-icon {
    font-size: 1.2rem;
}

/* ============================================
   HERO SECTION
   ============================================ */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    background: var(--gradient-primary);
    perspective: 1000px;
}

.hero::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--gradient-glow);
    animation: glowPulse 4s ease-in-out infinite;
}

@keyframes glowPulse {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.hero-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.hero-3d-scene {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.floating-cabinet {
    position: absolute;
    top: 20%;
    right: 10%;
    width: 120px;
    height: 160px;
    transform-style: preserve-3d;
    animation: floatCabinet 6s ease-in-out infinite;
}

.cabinet-face {
    width: 100%;
    height: 100%;
    background: linear-gradient(145deg, rgba(201, 168, 76, 0.2), rgba(201, 168, 76, 0.05));
    border: 1px solid rgba(201, 168, 76, 0.3);
    border-radius: var(--radius-md);
    backdrop-filter: blur(10px);
}

.cabinet-shine {
    position: absolute;
    top: 10%;
    left: 10%;
    width: 30%;
    height: 60%;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.2), transparent);
    border-radius: var(--radius-sm);
    animation: shineMove 3s ease-in-out infinite;
}

@keyframes floatCabinet {
    0%, 100% { transform: translateY(0) rotateY(5deg) rotateX(2deg); }
    50% { transform: translateY(-20px) rotateY(-5deg) rotateX(-2deg); }
}

@keyframes shineMove {
    0%, 100% { transform: translateX(0) scaleX(1); }
    50% { transform: translateX(10px) scaleX(0.8); }
}

.floating-brush {
    position: absolute;
    top: 30%;
    left: 8%;
    width: 60px;
    height: 200px;
    animation: floatBrush 5s ease-in-out infinite;
    transform: rotate(-30deg);
}

.brush-handle {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 12px;
    height: 120px;
    background: linear-gradient(to bottom, #8B6914, #654321);
    border-radius: 4px;
}

.brush-head {
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 30px;
    height: 60px;
    background: linear-gradient(to bottom, var(--secondary), #a8893a);
    border-radius: 4px 4px 0 0;
}

.paint-drip {
    position: absolute;
    top: 55px;
    width: 6px;
    background: var(--secondary);
    border-radius: 0 0 3px 3px;
    animation: drip 3s ease-in infinite;
}

.drip-1 { left: 8px; height: 20px; animation-delay: 0s; }
.drip-2 { right: 8px; height: 15px; animation-delay: 1.5s; }

@keyframes floatBrush {
    0%, 100% { transform: rotate(-30deg) translateY(0); }
    50% { transform: rotate(-25deg) translateY(-15px); }
}

@keyframes drip {
    0% { height: 0; opacity: 1; }
    50% { height: 30px; opacity: 1; }
    100% { height: 50px; opacity: 0; transform: translateY(20px); }
}

.floating-paint-drop {
    position: absolute;
    width: 20px;
    height: 20px;
    background: radial-gradient(circle, var(--secondary), transparent);
    border-radius: 50%;
    top: 60%;
    left: 70%;
    animation: floatDrop 4s ease-in-out infinite;
}

.drop-2 { top: 75%; left: 30%; animation-delay: 1s; width: 15px; height: 15px; }
.drop-3 { top: 40%; left: 85%; animation-delay: 2s; width: 25px; height: 25px; }

@keyframes floatDrop {
    0%, 100% { transform: translateY(0) scale(1); opacity: 0.6; }
    50% { transform: translateY(-30px) scale(1.2); opacity: 1; }
}

.hero-content {
    position: relative;
    z-index: 10;
    text-align: center;
    max-width: 900px;
    padding: 0 2rem;
}

.hero-badge {
    display: inline-block;
    padding: 0.5rem 1.5rem;
    background: rgba(201, 168, 76, 0.1);
    border: 1px solid rgba(201, 168, 76, 0.3);
    border-radius: 50px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--secondary);
    margin-bottom: 2rem;
    letter-spacing: 0.5px;
}

.hero-title {
    font-size: clamp(2.2rem, 5vw, 4rem);
    font-weight: 800;
    line-height: 1.15;
    margin-bottom: 1.5rem;
    letter-spacing: -0.02em;
}

.title-line {
    display: block;
}

.hero-title em {
    font-style: normal;
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    max-width: 650px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
}

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

.hero-scroll-indicator {
    position: absolute;
    bottom: 2rem;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-muted);
    font-size: 0.8rem;
    animation: scrollBounce 2s ease-in-out infinite;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--secondary), transparent);
}

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

/* ============================================
   SECTIONS BASE
   ============================================ */
.section {
    padding: 8rem 0;
    position: relative;
    overflow: hidden;
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section-header {
    text-align: center;
    margin-bottom: 4rem;
}

.section-tag {
    display: inline-block;
    padding: 0.4rem 1.2rem;
    background: rgba(74, 144, 164, 0.1);
    border: 1px solid rgba(74, 144, 164, 0.3);
    border-radius: 50px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 1.5rem;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3.2rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
}

.text-gradient {
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* ============================================
   INTRODUCTION SECTION
   ============================================ */
.introduction {
    background: var(--surface-elevated);
}

.moving-bg-layer {
    position: absolute;
    top: 0;
    left: -10%;
    width: 120%;
    height: 100%;
    background: radial-gradient(ellipse at 30% 50%, rgba(201, 168, 76, 0.03) 0%, transparent 50%);
    animation: moveBg 20s linear infinite;
    pointer-events: none;
}

.moving-bg-layer.layer-2 {
    background: radial-gradient(ellipse at 70% 30%, rgba(74, 144, 164, 0.03) 0%, transparent 50%);
    animation-direction: reverse;
    animation-duration: 25s;
}

@keyframes moveBg {
    0% { transform: translateX(-5%) translateY(0); }
    50% { transform: translateX(5%) translateY(-3%); }
    100% { transform: translateX(-5%) translateY(0); }
}

.intro-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
}

.intro-content p {
    margin-bottom: 1.5rem;
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.9;
}

.intro-lead {
    color: var(--text-primary) !important;
    font-size: 1.15rem !important;
    font-weight: 500;
}

.contextual-link {
    color: var(--secondary);
    text-decoration: none;
    border-bottom: 1px solid rgba(201, 168, 76, 0.3);
    transition: all var(--transition-fast);
}

.contextual-link:hover {
    border-bottom-color: var(--secondary);
    text-shadow: 0 0 10px rgba(201, 168, 76, 0.3);
}

.intro-visual {
    display: flex;
    justify-content: center;
}

.paint-canvas {
    position: relative;
    width: 300px;
    height: 380px;
    border-radius: var(--radius-lg);
    overflow: hidden;
    box-shadow: var(--shadow-lg);
}

.canvas-before, .canvas-after {
    position: absolute;
    top: 0;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: flex-end;
    justify-content: center;
    padding-bottom: 1.5rem;
    font-weight: 700;
    font-size: 0.9rem;
    text-transform: uppercase;
    letter-spacing: 1px;
}

.canvas-before {
    left: 0;
    background: linear-gradient(145deg, #5c4a1e, #3d2e0f);
    color: rgba(255, 255, 255, 0.7);
}

.canvas-after {
    right: 0;
    clip-path: inset(0 0 0 50%);
    background: linear-gradient(145deg, #2d4a3e, #1a3a2e);
    color: var(--secondary);
    animation: wipeReveal 4s ease-in-out infinite;
}

@keyframes wipeReveal {
    0%, 100% { clip-path: inset(0 0 0 50%); }
    50% { clip-path: inset(0 0 0 20%); }
}

.surface-texture {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.surface-texture.old {
    background: repeating-linear-gradient(90deg, transparent, transparent 15px, rgba(0,0,0,0.1) 15px, rgba(0,0,0,0.1) 16px);
}

.surface-texture.new {
    background: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, transparent 50%, rgba(255,255,255,0.05) 100%);
}

.paint-wipe {
    position: absolute;
    top: 0;
    left: 50%;
    width: 3px;
    height: 100%;
    background: var(--gradient-secondary);
    box-shadow: 0 0 20px rgba(201, 168, 76, 0.5);
    animation: wipeMove 4s ease-in-out infinite;
}

@keyframes wipeMove {
    0%, 100% { left: 50%; }
    50% { left: 20%; }
}

/* ============================================
   PROBLEMS SECTION
   ============================================ */
.problems {
    background: var(--surface);
}

.problems-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
    gap: 2rem;
}

.problem-card {
    background: var(--surface-glass);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.problem-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--gradient-secondary);
    transform: scaleX(0);
    transform-origin: left;
    transition: transform var(--transition-normal);
}

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

.problem-card:hover {
    transform: translateY(-5px);
    border-color: rgba(201, 168, 76, 0.2);
    box-shadow: var(--shadow-glow);
}

.problem-icon {
    width: 48px;
    height: 48px;
    color: var(--secondary);
    margin-bottom: 1.5rem;
}

.problem-icon svg {
    width: 100%;
    height: 100%;
}

.problem-card h3 {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.problem-card p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
}

/* ============================================
   SERVICES SECTION
   ============================================ */
.services {
    background: var(--surface-elevated);
}

.services-intro {
    text-align: center;
    max-width: 700px;
    margin: -2rem auto 3rem;
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
}

.services-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 2rem;
}

.service-card {
    position: relative;
    background: var(--surface-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: 2.5rem;
    transition: all var(--transition-normal);
    transform-style: preserve-3d;
    overflow: hidden;
}

.service-glow {
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: radial-gradient(circle at center, rgba(201, 168, 76, 0.08), transparent 50%);
    opacity: 0;
    transition: opacity var(--transition-normal);
    pointer-events: none;
}

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

.service-card:hover {
    border-color: rgba(201, 168, 76, 0.2);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3), 0 0 30px rgba(201, 168, 76, 0.1);
}

.service-number {
    font-size: 3rem;
    font-weight: 900;
    color: rgba(201, 168, 76, 0.15);
    margin-bottom: 1rem;
    line-height: 1;
}

.service-card h3 {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.service-card p {
    color: var(--text-secondary);
    font-size: 0.93rem;
    line-height: 1.8;
}

/* ============================================
   PROCESS SECTION
   ============================================ */
.process {
    background: var(--surface);
}

.process-timeline {
    position: relative;
    max-width: 800px;
    margin: 0 auto;
    padding: 2rem 0;
}

.process-line {
    position: absolute;
    left: 30px;
    top: 0;
    bottom: 0;
    width: 2px;
    background: linear-gradient(to bottom, var(--secondary), var(--accent), transparent);
}

.process-step {
    display: flex;
    gap: 2.5rem;
    margin-bottom: 3rem;
    position: relative;
}

.step-marker {
    flex-shrink: 0;
    position: relative;
    width: 60px;
    height: 60px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.step-num {
    position: relative;
    z-index: 2;
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--surface-elevated);
    border: 2px solid var(--secondary);
    border-radius: 50%;
    font-weight: 700;
    color: var(--secondary);
    font-size: 1rem;
}

.step-pulse {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 44px;
    height: 44px;
    border: 2px solid var(--secondary);
    border-radius: 50%;
    animation: pulse 2s ease-out infinite;
}

@keyframes pulse {
    0% { transform: translate(-50%, -50%) scale(1); opacity: 1; }
    100% { transform: translate(-50%, -50%) scale(1.8); opacity: 0; }
}

.step-content {
    flex: 1;
    background: var(--surface-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    padding: 2rem;
}

.step-content h3 {
    font-size: 1.15rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.step-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.8;
}

/* ============================================
   BENEFITS SECTION
   ============================================ */
.benefits {
    background: var(--surface-elevated);
    position: relative;
}

.benefits-bg-shapes {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.bg-shape {
    position: absolute;
    border-radius: 50%;
    filter: blur(60px);
    opacity: 0.3;
}

.shape-1 {
    width: 300px;
    height: 300px;
    background: rgba(201, 168, 76, 0.15);
    top: 10%;
    left: -5%;
    animation: shapeFloat 8s ease-in-out infinite;
}

.shape-2 {
    width: 200px;
    height: 200px;
    background: rgba(74, 144, 164, 0.15);
    top: 60%;
    right: -3%;
    animation: shapeFloat 10s ease-in-out infinite reverse;
}

.shape-3 {
    width: 250px;
    height: 250px;
    background: rgba(201, 168, 76, 0.1);
    bottom: 10%;
    left: 40%;
    animation: shapeFloat 12s ease-in-out infinite;
}

@keyframes shapeFloat {
    0%, 100% { transform: translate(0, 0); }
    33% { transform: translate(20px, -20px); }
    66% { transform: translate(-10px, 15px); }
}

.benefits-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 2rem;
    margin-bottom: 3rem;
}

.benefit-card {
    text-align: center;
    background: var(--surface-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-lg);
    padding: 3rem 2rem;
    transition: all var(--transition-normal);
    animation: floatBenefit 6s ease-in-out infinite;
}

.benefit-card:nth-child(2) { animation-delay: 1.5s; }
.benefit-card:nth-child(3) { animation-delay: 3s; }
.benefit-card:nth-child(4) { animation-delay: 4.5s; }

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

.benefit-card:hover {
    border-color: rgba(201, 168, 76, 0.3);
    box-shadow: var(--shadow-glow);
}

.benefit-value {
    font-size: 2.8rem;
    font-weight: 900;
    background: var(--gradient-secondary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: 1rem;
    line-height: 1;
}

.benefit-card h3 {
    font-size: 1.1rem;
    font-weight: 700;
    margin-bottom: 1rem;
    color: var(--text-primary);
}

.benefit-card p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.7;
}

.benefits-content {
    max-width: 800px;
    margin: 0 auto;
    text-align: center;
}

.benefits-content p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.9;
}

/* ============================================
   EXPERIENCE SECTION
   ============================================ */
.experience {
    background: var(--surface);
}

.experience-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: start;
}

.exp-content p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.9;
    margin-bottom: 1.5rem;
}

.exp-timeline {
    position: relative;
    padding-left: 2rem;
    border-left: 2px solid rgba(201, 168, 76, 0.2);
}

.timeline-item {
    position: relative;
    padding-bottom: 2.5rem;
    padding-left: 2rem;
}

.timeline-item:last-child {
    padding-bottom: 0;
}

.timeline-dot {
    position: absolute;
    left: -9px;
    top: 5px;
    width: 16px;
    height: 16px;
    background: var(--secondary);
    border-radius: 50%;
    box-shadow: 0 0 15px rgba(201, 168, 76, 0.4);
}

.timeline-content h4 {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.5rem;
}

.timeline-content p {
    color: var(--text-secondary);
    font-size: 0.93rem;
    line-height: 1.7;
}

/* ============================================
   FAQ SECTION
   ============================================ */
.faq {
    background: var(--surface-elevated);
}

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

.faq-item {
    border: 1px solid rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    margin-bottom: 1rem;
    overflow: hidden;
    background: var(--surface-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    transition: all var(--transition-normal);
}

.faq-item:hover {
    border-color: rgba(201, 168, 76, 0.2);
}

.faq-question {
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem 2rem;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.05rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    transition: color var(--transition-fast);
    gap: 1rem;
}

.faq-question:hover {
    color: var(--secondary);
}

.faq-icon {
    width: 28px;
    height: 28px;
    position: relative;
    flex-shrink: 0;
}

.faq-icon span {
    position: absolute;
    top: 50%;
    left: 50%;
    width: 14px;
    height: 2px;
    background: var(--secondary);
    border-radius: 2px;
    transition: all var(--transition-normal);
}

.faq-icon span:first-child {
    transform: translate(-50%, -50%);
}

.faq-icon span:last-child {
    transform: translate(-50%, -50%) rotate(90deg);
}

.faq-item.active .faq-icon span:last-child {
    transform: translate(-50%, -50%) rotate(0deg);
    opacity: 0;
}

.faq-answer {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
}

.faq-answer-content {
    padding: 0 2rem 2rem;
}

.faq-answer-content p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.9;
}

/* ============================================
   CTA SECTION
   ============================================ */
.cta-section {
    background: var(--gradient-primary);
    position: relative;
    text-align: center;
    overflow: hidden;
}

.cta-energy {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 100%;
    height: 100%;
    pointer-events: none;
}

.energy-ring {
    position: absolute;
    top: 50%;
    left: 50%;
    border-radius: 50%;
    border: 1px solid rgba(201, 168, 76, 0.2);
    animation: ringExpand 4s ease-out infinite;
}

.ring-1 {
    width: 200px;
    height: 200px;
    margin: -100px 0 0 -100px;
    animation-delay: 0s;
}

.ring-2 {
    width: 400px;
    height: 400px;
    margin: -200px 0 0 -200px;
    animation-delay: 1s;
}

.ring-3 {
    width: 600px;
    height: 600px;
    margin: -300px 0 0 -300px;
    animation-delay: 2s;
}

@keyframes ringExpand {
    0% { transform: scale(0.8); opacity: 1; }
    100% { transform: scale(1.5); opacity: 0; }
}

.energy-particles {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
}

.cta-content {
    position: relative;
    z-index: 10;
}

.cta-title {
    font-size: clamp(1.8rem, 3.5vw, 2.8rem);
    font-weight: 800;
    margin-bottom: 1.5rem;
    line-height: 1.2;
}

.cta-text {
    font-size: 1.1rem;
    color: var(--text-secondary);
    max-width: 600px;
    margin: 0 auto 2.5rem;
    line-height: 1.8;
}

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

/* ============================================
   FOOTER
   ============================================ */
.footer {
    background: var(--surface);
    padding: 5rem 0 2rem;
    position: relative;
    overflow: hidden;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
}

.footer-ambient {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    overflow: hidden;
}

.ambient-line {
    position: absolute;
    height: 1px;
    background: linear-gradient(to right, transparent, rgba(201, 168, 76, 0.2), transparent);
    animation: ambientSlide 8s linear infinite;
}

.line-1 { top: 20%; width: 200px; left: -200px; animation-delay: 0s; }
.line-2 { top: 50%; width: 150px; left: -150px; animation-delay: 3s; animation-duration: 10s; }
.line-3 { top: 80%; width: 180px; left: -180px; animation-delay: 5s; animation-duration: 12s; }

@keyframes ambientSlide {
    0% { left: -200px; }
    100% { left: 100%; }
}

.ambient-glow {
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 400px;
    height: 200px;
    background: radial-gradient(ellipse at center, rgba(201, 168, 76, 0.05), transparent 70%);
    animation: ambientGlow 5s ease-in-out infinite;
}

@keyframes ambientGlow {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.footer-grid {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    gap: 3rem;
    margin-bottom: 3rem;
    position: relative;
    z-index: 1;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    text-decoration: none;
    color: var(--text-primary);
    font-weight: 700;
    font-size: 1.15rem;
    margin-bottom: 1rem;
}

.footer-brand p {
    color: var(--text-secondary);
    font-size: 0.9rem;
    line-height: 1.8;
    max-width: 300px;
}

.footer-links h4, .footer-contact h4, .footer-social h4 {
    font-size: 0.95rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 1.5rem;
}

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

.footer-links li, .footer-contact li {
    margin-bottom: 0.75rem;
}

.footer-links a, .footer-contact a {
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 0.9rem;
    transition: color var(--transition-fast);
}

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

.social-links {
    display: flex;
    gap: 1rem;
}

.social-link {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 40px;
    height: 40px;
    background: var(--surface-glass);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.social-link:hover {
    color: var(--secondary);
    border-color: var(--secondary);
    transform: translateY(-2px);
}

.social-link svg {
    width: 18px;
    height: 18px;
}

.footer-bottom {
    text-align: center;
    padding-top: 2rem;
    border-top: 1px solid rgba(255, 255, 255, 0.05);
    position: relative;
    z-index: 1;
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.85rem;
}

/* ============================================
   BACK TO TOP
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 48px;
    height: 48px;
    background: var(--surface-glass);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border: 1px solid rgba(201, 168, 76, 0.3);
    border-radius: 50%;
    color: var(--secondary);
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: all var(--transition-normal);
    z-index: 999;
    display: flex;
    align-items: center;
    justify-content: center;
}

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

.back-to-top:hover {
    background: var(--secondary);
    color: var(--primary);
    transform: translateY(-3px);
    box-shadow: var(--shadow-glow);
}

.back-to-top svg {
    width: 20px;
    height: 20px;
}

/* ============================================
   SCROLL REVEAL ANIMATIONS
   ============================================ */
.reveal-up, .reveal-left, .reveal-right, .reveal-scale, .reveal-fade, .reveal-text {
    opacity: 0;
    transition: all 0.8s cubic-bezier(0.4, 0, 0.2, 1);
}

.reveal-up { transform: translateY(40px); }
.reveal-left { transform: translateX(-40px); }
.reveal-right { transform: translateX(40px); }
.reveal-scale { transform: scale(0.9); }
.reveal-fade { opacity: 0; }

.reveal-up.revealed,
.reveal-left.revealed,
.reveal-right.revealed,
.reveal-scale.revealed,
.reveal-fade.revealed,
.reveal-text.revealed {
    opacity: 1;
    transform: translate(0) scale(1);
}

.reveal-text {
    background-size: 200% 100%;
    background-position: 100% 0;
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    background-image: linear-gradient(to right, var(--text-primary), var(--text-primary));
    transition: background-position 1s ease;
}

.reveal-text.revealed {
    background-position: 0 0;
    -webkit-text-fill-color: var(--text-primary);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }
.delay-4 { transition-delay: 0.4s; }
.delay-5 { transition-delay: 0.5s; }

/* ============================================
   RESPONSIVE DESIGN
   ============================================ */
@media (max-width: 1024px) {
    .intro-grid,
    .experience-grid {
        grid-template-columns: 1fr;
        gap: 3rem;
    }

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 2rem;
    }

    .hero-3d-scene {
        opacity: 0.5;
    }
}

@media (max-width: 768px) {
    .nav-menu {
        position: fixed;
        top: 0;
        right: -100%;
        width: 80%;
        max-width: 320px;
        height: 100vh;
        background: rgba(13, 17, 23, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        flex-direction: column;
        align-items: flex-start;
        padding: 6rem 2rem 2rem;
        gap: 1.5rem;
        transition: right var(--transition-normal);
        border-left: 1px solid rgba(201, 168, 76, 0.1);
    }

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

    .nav-toggle {
        display: flex;
    }

    .section {
        padding: 5rem 0;
    }

    .hero-actions {
        flex-direction: column;
        align-items: center;
    }

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

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

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

    .footer-grid {
        grid-template-columns: 1fr;
        gap: 2rem;
    }

    .process-line {
        left: 20px;
    }

    .step-marker {
        width: 40px;
        height: 40px;
    }

    .step-num {
        width: 36px;
        height: 36px;
        font-size: 0.85rem;
    }

    .step-pulse {
        width: 36px;
        height: 36px;
    }

    .process-step {
        gap: 1.5rem;
    }

    .step-content {
        padding: 1.5rem;
    }

    .floating-cabinet,
    .floating-brush {
        opacity: 0.3;
    }

    .cta-actions {
        flex-direction: column;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 1.25rem;
    }

    .hero-title {
        font-size: 1.8rem;
    }

    .section-title {
        font-size: 1.6rem;
    }

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

    .benefit-value {
        font-size: 2.2rem;
    }

    .faq-question {
        padding: 1.2rem 1.5rem;
        font-size: 0.95rem;
    }

    .faq-answer-content {
        padding: 0 1.5rem 1.5rem;
    }

    .hero-badge {
        font-size: 0.75rem;
        padding: 0.4rem 1rem;
    }

    .paint-canvas {
        width: 250px;
        height: 320px;
    }
}

/* ============================================
   REDUCED MOTION
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    *, *::before, *::after {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }

    html {
        scroll-behavior: auto;
    }

    .reveal-up, .reveal-left, .reveal-right, .reveal-scale, .reveal-fade, .reveal-text {
        opacity: 1;
        transform: none;
    }
}

/* ============================================
   FOCUS STATES & ACCESSIBILITY
   ============================================ */
:focus-visible {
    outline: 2px solid var(--secondary);
    outline-offset: 3px;
    border-radius: 4px;
}

a:focus-visible,
button:focus-visible {
    outline: 2px solid var(--secondary);
    outline-offset: 3px;
}

/* Skip to content */
.skip-link {
    position: absolute;
    top: -100%;
    left: 1rem;
    padding: 0.75rem 1.5rem;
    background: var(--secondary);
    color: var(--primary);
    font-weight: 700;
    border-radius: var(--radius-sm);
    z-index: 99999;
    transition: top var(--transition-fast);
}

.skip-link:focus {
    top: 1rem;
}