/* ===================================================================
   TECHFIX — Premium Design System
   =================================================================== */

/* --- Design Tokens --- */
:root {
    /* Color Palette */
    --bg-primary: #06090f;
    --bg-secondary: #0c1220;
    --bg-tertiary: #111827;
    --bg-card: rgba(17, 24, 39, 0.7);
    --bg-card-hover: rgba(22, 33, 55, 0.85);

    --accent-primary: #06b6d4;       /* Cyan 500 */
    --accent-bright: #22d3ee;        /* Cyan 400 */
    --accent-glow: rgba(6, 182, 212, 0.35);
    --accent-subtle: rgba(6, 182, 212, 0.1);
    --accent-gradient: linear-gradient(135deg, #06b6d4, #3b82f6);

    --text-primary: #f1f5f9;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;

    --border-color: rgba(148, 163, 184, 0.08);
    --border-accent: rgba(6, 182, 212, 0.2);

    /* Spacing */
    --section-padding: 120px 0;
    --container-width: 1200px;

    /* Typography */
    --font-body: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-heading: 'Space Grotesk', 'Inter', sans-serif;

    /* Transitions */
    --transition-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    /* Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
}

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

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

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

/* Subtle noise texture overlay */
body::before {
    content: '';
    position: fixed;
    inset: 0;
    background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.03'/%3E%3C/svg%3E");
    pointer-events: none;
    z-index: 0;
}

/* --- Cursor Glow --- */
.cursor-glow {
    position: fixed;
    width: 400px;
    height: 400px;
    border-radius: 50%;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    transform: translate(-50%, -50%);
    z-index: 0;
    opacity: 0;
    transition: opacity 0.3s ease;
    will-change: transform;
}

body:hover .cursor-glow {
    opacity: 1;
}

/* --- Typography --- */
h1, h2, h3, h4 {
    font-family: var(--font-heading);
    color: var(--text-primary);
    margin-top: 0;
    line-height: 1.2;
}

p {
    color: var(--text-secondary);
    font-size: 1.05rem;
    line-height: 1.8;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--accent-bright);
}

/* --- Buttons --- */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: var(--radius-xl);
    font-size: 1rem;
    font-weight: 600;
    font-family: var(--font-body);
    text-transform: none;
    letter-spacing: 0;
    transition: all var(--transition-medium);
    cursor: pointer;
    border: none;
    position: relative;
    overflow: hidden;
}

.btn i {
    transition: transform var(--transition-fast);
}

.btn:hover i.fa-arrow-right,
.btn:hover i.fa-chevron-down {
    transform: translateX(4px);
}

.primary-btn {
    background: var(--accent-gradient);
    color: #fff;
    box-shadow: 0 4px 20px var(--accent-glow);
}

.primary-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 30px var(--accent-glow);
    color: #fff;
}

.outline-btn {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--border-accent);
    backdrop-filter: blur(8px);
}

.outline-btn:hover {
    background: var(--accent-subtle);
    border-color: var(--accent-primary);
    color: var(--accent-bright);
    transform: translateY(-3px);
}

.glow-btn::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(255,255,255,0.15), transparent);
    transition: left 0.6s ease;
}

.glow-btn:hover::before {
    left: 100%;
}

.large-btn {
    padding: 20px 40px;
    font-size: 1.1rem;
}

/* ===================================================================
   NAVBAR
   =================================================================== */
#navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 16px 0;
    transition: all var(--transition-medium);
    background: transparent;
}

#navbar.scrolled {
    background: rgba(6, 9, 15, 0.85);
    backdrop-filter: blur(20px) saturate(180%);
    -webkit-backdrop-filter: blur(20px) saturate(180%);
    border-bottom: 1px solid var(--border-color);
    padding: 10px 0;
}

#navbar.hidden {
    transform: translateY(-100%);
}

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

.nav-brand {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

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

.brand-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border-radius: var(--radius-sm);
    background: var(--accent-gradient);
    font-size: 0.9rem;
    color: #fff;
}

.brand-accent {
    color: var(--accent-primary);
}

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

.nav-links a {
    color: var(--text-secondary);
    font-weight: 500;
    font-size: 0.95rem;
    padding: 8px 16px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    position: relative;
}

.nav-links a:hover,
.nav-links a.active {
    color: var(--text-primary);
    background: var(--accent-subtle);
}

.nav-cta {
    background: var(--accent-gradient) !important;
    color: #fff !important;
    padding: 10px 20px !important;
    border-radius: var(--radius-xl) !important;
    font-weight: 600 !important;
}

.nav-cta:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px var(--accent-glow);
}

/* Hamburger */
.menu-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

.hamburger-line {
    display: block;
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

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

.menu-toggle.active .hamburger-line:nth-child(2) {
    opacity: 0;
}

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

/* ===================================================================
   HERO SECTION
   =================================================================== */
#hero-section {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    padding: 120px 24px 80px;
    background: radial-gradient(ellipse at 50% 0%, rgba(6, 182, 212, 0.08) 0%, var(--bg-primary) 60%);
}

#heroCanvas {
    position: absolute;
    inset: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
}

.hero-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent 0%, var(--bg-primary) 100%);
    z-index: 1;
    pointer-events: none;
}

.hero-content {
    position: relative;
    z-index: 2;
    text-align: center;
    max-width: 800px;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    background: var(--accent-subtle);
    border: 1px solid var(--border-accent);
    border-radius: var(--radius-xl);
    padding: 8px 20px;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--accent-bright);
    margin-bottom: 32px;
    animation: fadeSlideUp 0.8s ease-out 0.2s both;
}

.hero-badge i {
    font-size: 0.9rem;
}

.hero-title {
    font-size: clamp(4rem, 10vw, 8rem);
    font-weight: 800;
    letter-spacing: -3px;
    line-height: 0.95;
    margin-bottom: 24px;
    animation: fadeSlideUp 0.8s ease-out 0.4s both;
}

.title-line {
    display: inline;
}

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

.hero-slogan {
    font-size: 1.25rem;
    color: var(--text-secondary);
    max-width: 540px;
    margin: 0 auto 40px;
    font-weight: 400;
    line-height: 1.7;
    animation: fadeSlideUp 0.8s ease-out 0.6s both;
}

.hero-slogan strong {
    color: var(--text-primary);
    font-weight: 600;
}

.hero-actions {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    animation: fadeSlideUp 0.8s ease-out 0.8s both;
}

/* Floating tech badges around hero */
.hero-floating-badges {
    position: absolute;
    inset: 0;
    z-index: 0;
    pointer-events: none;
}

.floating-badge {
    position: absolute;
    width: 50px;
    height: 50px;
    border-radius: var(--radius-md);
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    font-size: 1.2rem;
    animation: float 6s ease-in-out infinite;
    backdrop-filter: blur(8px);
}

.badge-1 { top: 12%; left: 5%; animation-delay: 0s; }
.badge-2 { top: 18%; right: 5%; animation-delay: 1.5s; }
.badge-3 { bottom: 30%; left: 3%; animation-delay: 3s; }
.badge-4 { bottom: 35%; right: 4%; animation-delay: 4.5s; }

@keyframes float {
    0%, 100% { transform: translateY(0) rotate(0deg); }
    50% { transform: translateY(-20px) rotate(5deg); }
}

/* Scroll indicator */
.hero-scroll-indicator {
    position: absolute;
    bottom: 32px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    animation: fadeSlideUp 0.8s ease-out 1.2s both;
}

.hero-scroll-indicator span {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 2px;
    font-weight: 500;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: var(--accent-primary);
    position: relative;
    overflow: hidden;
}

.scroll-line::after {
    content: '';
    position: absolute;
    top: -100%;
    left: 0;
    width: 100%;
    height: 100%;
    background: var(--accent-bright);
    animation: scrollDown 2s ease-in-out infinite;
}

@keyframes scrollDown {
    0% { top: -100%; }
    100% { top: 100%; }
}

/* ===================================================================
   STATS BAR
   =================================================================== */
.stats-bar {
    position: relative;
    z-index: 1;
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    border-bottom: 1px solid var(--border-color);
    padding: 48px 24px;
}

.stats-container {
    max-width: var(--container-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 32px;
}

.stat-item {
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 4px;
}

.stat-number {
    font-family: var(--font-heading);
    font-size: 2.8rem;
    font-weight: 800;
    color: var(--accent-primary);
    line-height: 1;
}

.stat-suffix {
    font-family: var(--font-heading);
    font-size: 2rem;
    font-weight: 700;
    color: var(--accent-bright);
}

.stat-label {
    font-size: 0.85rem;
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* ===================================================================
   MAIN CONTENT & SECTIONS
   =================================================================== */
.main-content {
    position: relative;
    z-index: 1;
    max-width: var(--container-width);
    margin: 0 auto;
    padding: 0 24px;
}

.service-category,
.testimonials-section {
    padding: var(--section-padding);
    border-bottom: 1px solid var(--border-color);
}

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

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--accent-primary);
    text-transform: uppercase;
    letter-spacing: 2px;
    margin-bottom: 16px;
    padding: 6px 16px;
    background: var(--accent-subtle);
    border-radius: var(--radius-xl);
    border: 1px solid var(--border-accent);
}

.section-tag i {
    font-size: 0.75rem;
}

.category-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    letter-spacing: -1px;
    margin-bottom: 16px;
    background: linear-gradient(135deg, var(--text-primary) 0%, var(--text-secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.section-subtitle {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 540px;
    margin: 0 auto;
}

/* ===================================================================
   SERVICE CARDS
   =================================================================== */
.service-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
    gap: 24px;
}

.service-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.service-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: var(--accent-gradient);
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.service-item:hover {
    transform: translateY(-8px);
    background: var(--bg-card-hover);
    border-color: var(--border-accent);
    box-shadow:
        0 20px 40px rgba(0,0,0,0.3),
        0 0 30px var(--accent-glow);
}

.service-item:hover::before {
    opacity: 1;
}

.service-icon-wrap {
    width: 52px;
    height: 52px;
    border-radius: var(--radius-md);
    background: var(--accent-subtle);
    border: 1px solid var(--border-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    color: var(--accent-primary);
    transition: all var(--transition-medium);
}

.service-item:hover .service-icon-wrap {
    background: var(--accent-gradient);
    color: #fff;
    border-color: transparent;
    transform: scale(1.1);
}

.service-item h3 {
    font-size: 1.2rem;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.service-item p {
    font-size: 0.95rem;
    color: var(--text-muted);
    flex-grow: 1;
}

.service-tag {
    display: inline-flex;
    align-items: center;
    padding: 4px 12px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent-bright);
    background: var(--accent-subtle);
    border-radius: var(--radius-xl);
    align-self: flex-start;
    margin-top: auto;
}

/* ===================================================================
   MONTAGE PC SHOWCASE
   =================================================================== */
.montage-showcase {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.montage-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    text-align: center;
    transition: all var(--transition-medium);
    position: relative;
    overflow: hidden;
}

.montage-card::after {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: var(--radius-lg);
    padding: 2px;
    background: var(--accent-gradient);
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    opacity: 0;
    transition: opacity var(--transition-medium);
}

.montage-card:hover {
    transform: translateY(-8px);
    box-shadow: 0 20px 40px rgba(0,0,0,0.3);
}

.montage-card:hover::after {
    opacity: 1;
}

.montage-icon {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: var(--accent-subtle);
    border: 1px solid var(--border-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.8rem;
    color: var(--accent-primary);
    margin: 0 auto 24px;
    transition: all var(--transition-medium);
}

.montage-card:hover .montage-icon {
    background: var(--accent-gradient);
    color: #fff;
    border-color: transparent;
    transform: scale(1.15) rotate(5deg);
}

.montage-card h3 {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.montage-card p {
    font-size: 0.95rem;
    color: var(--text-muted);
}

/* ===================================================================
   TESTIMONIALS
   =================================================================== */
.testimonial-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 24px;
}

.testimonial-item {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 32px;
    transition: all var(--transition-medium);
    display: flex;
    flex-direction: column;
    gap: 20px;
}

.testimonial-item:hover {
    transform: translateY(-6px);
    border-color: var(--border-accent);
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
}

.testimonial-stars {
    display: flex;
    gap: 4px;
    color: #fbbf24;
    font-size: 0.9rem;
}

.testimonial-item p {
    font-size: 1rem;
    line-height: 1.7;
    color: var(--text-secondary);
    font-style: italic;
    flex-grow: 1;
    position: relative;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 12px;
    padding-top: 16px;
    border-top: 1px solid var(--border-color);
}

.author-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background: var(--accent-subtle);
    border: 1px solid var(--border-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-primary);
    font-size: 1rem;
}

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

.author-info strong {
    font-size: 0.95rem;
    color: var(--text-primary);
    font-weight: 600;
}

.author-info span {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* ===================================================================
   QUOTE / CONTACT SECTION
   =================================================================== */
.quote-section {
    padding: var(--section-padding);
    position: relative;
    overflow: hidden;
    border-bottom: none !important;
}

.quote-glow {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
    pointer-events: none;
    z-index: 0;
}

.quote-content {
    position: relative;
    z-index: 1;
}

.contact-cards {
    display: flex;
    gap: 24px;
    justify-content: center;
    margin-bottom: 48px;
    flex-wrap: wrap;
}

.contact-card {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    padding: 32px 48px;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    transition: all var(--transition-medium);
    text-decoration: none;
    min-width: 240px;
}

.contact-card:hover {
    transform: translateY(-6px);
    border-color: var(--border-accent);
    background: var(--bg-card-hover);
    box-shadow: 0 15px 35px rgba(0,0,0,0.2);
}

.contact-card-icon {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    background: var(--accent-subtle);
    border: 1px solid var(--border-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    color: var(--accent-primary);
    transition: all var(--transition-medium);
}

.contact-card:hover .contact-card-icon {
    background: var(--accent-gradient);
    color: #fff;
    border-color: transparent;
}

.contact-card-label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 500;
}

.contact-card strong {
    font-size: 1.05rem;
    color: var(--text-primary);
    font-weight: 600;
}

.quote-cta {
    text-align: center;
}

.form-prompt {
    font-size: 1rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* ===================================================================
   FOOTER
   =================================================================== */
footer {
    background: var(--bg-secondary);
    border-top: 1px solid var(--border-color);
    padding: 64px 24px 0;
}

.footer-content {
    max-width: var(--container-width);
    margin: 0 auto;
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 48px;
    border-bottom: 1px solid var(--border-color);
}

.footer-brand {
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.footer-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 800;
    color: var(--text-primary);
}

.footer-brand p {
    font-size: 0.95rem;
    color: var(--text-muted);
    max-width: 320px;
}

.footer-links-col h4 {
    font-size: 0.85rem;
    font-weight: 700;
    color: var(--text-primary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 20px;
}

.footer-links-col ul {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.footer-links-col a {
    font-size: 0.9rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all var(--transition-fast);
}

.footer-links-col a:hover {
    color: var(--accent-bright);
    transform: translateX(4px);
}

.footer-links-col a i {
    font-size: 0.8rem;
    width: 16px;
    color: var(--accent-primary);
}

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

.social-links a {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-secondary);
    font-size: 1rem;
    transition: all var(--transition-medium);
}

.social-links a:hover {
    background: var(--accent-gradient);
    border-color: transparent;
    color: #fff;
    transform: translateY(-3px) scale(1.05);
}

.footer-bottom {
    text-align: center;
    padding: 24px 0;
}

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

/* ===================================================================
   SCROLL TO TOP BUTTON
   =================================================================== */
.scroll-to-top-btn {
    display: none;
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--accent-gradient);
    color: #fff;
    border: none;
    font-size: 1.1rem;
    cursor: pointer;
    box-shadow: 0 4px 20px var(--accent-glow);
    transition: all var(--transition-medium);
    z-index: 999;
    justify-content: center;
    align-items: center;
}

.scroll-to-top-btn:hover {
    transform: translateY(-4px) scale(1.1);
    box-shadow: 0 8px 30px var(--accent-glow);
}

.scroll-to-top-btn.show {
    display: flex;
    animation: fadeSlideUp 0.4s ease-out;
}

/* ===================================================================
   ANIMATIONS
   =================================================================== */
@keyframes fadeSlideUp {
    from {
        opacity: 0;
        transform: translateY(24px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.reveal-section {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s ease-out, transform 0.8s ease-out;
}

.reveal-section.active {
    opacity: 1;
    transform: translateY(0);
}

/* Stagger children animation */
.reveal-section.active .service-item,
.reveal-section.active .montage-card,
.reveal-section.active .testimonial-item,
.reveal-section.active .contact-card {
    animation: fadeSlideUp 0.6s ease-out both;
}

.reveal-section.active .service-item:nth-child(1),
.reveal-section.active .montage-card:nth-child(1),
.reveal-section.active .testimonial-item:nth-child(1),
.reveal-section.active .contact-card:nth-child(1) { animation-delay: 0.1s; }

.reveal-section.active .service-item:nth-child(2),
.reveal-section.active .montage-card:nth-child(2),
.reveal-section.active .testimonial-item:nth-child(2),
.reveal-section.active .contact-card:nth-child(2) { animation-delay: 0.2s; }

.reveal-section.active .service-item:nth-child(3),
.reveal-section.active .montage-card:nth-child(3),
.reveal-section.active .testimonial-item:nth-child(3) { animation-delay: 0.3s; }

.reveal-section.active .service-item:nth-child(4) { animation-delay: 0.4s; }

/* ===================================================================
   RESPONSIVE DESIGN
   =================================================================== */

/* Tablet */
@media (max-width: 1024px) {
    :root {
        --section-padding: 80px 0;
    }

    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 24px;
    }

    .montage-showcase {
        grid-template-columns: repeat(3, 1fr);
        gap: 16px;
    }

    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 32px;
    }

    .footer-brand {
        grid-column: 1 / -1;
    }

    .floating-badge {
        display: none;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --section-padding: 64px 0;
    }

    /* Mobile Nav */
    .menu-toggle {
        display: flex;
    }

    .nav-links {
        display: none;
        position: absolute;
        top: 100%;
        left: 0;
        width: 100%;
        flex-direction: column;
        background: rgba(6, 9, 15, 0.98);
        backdrop-filter: blur(20px);
        -webkit-backdrop-filter: blur(20px);
        border-bottom: 1px solid var(--border-color);
        padding: 16px;
        gap: 4px;
    }

    .nav-links.active {
        display: flex;
    }

    .nav-links a {
        display: block;
        padding: 14px 20px;
        border-radius: var(--radius-sm);
        text-align: center;
        font-size: 1.05rem;
    }

    .nav-cta {
        margin-top: 8px;
        text-align: center !important;
    }

    /* Hero Mobile */
    .hero-title {
        font-size: clamp(3rem, 12vw, 5rem);
        letter-spacing: -2px;
    }

    .hero-slogan {
        font-size: 1.05rem;
    }

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

    .hero-actions .btn {
        width: 100%;
        max-width: 300px;
        justify-content: center;
    }

    .hero-scroll-indicator {
        display: none;
    }

    .floating-badge {
        display: none;
    }

    /* Stats Mobile */
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 20px;
    }

    .stat-number {
        font-size: 2.2rem;
    }

    /* Section headers */
    .section-header {
        margin-bottom: 40px;
    }

    .category-title {
        font-size: clamp(1.6rem, 5vw, 2.2rem);
    }

    /* Grids mobile */
    .service-grid,
    .testimonial-grid {
        grid-template-columns: 1fr;
    }

    .montage-showcase {
        grid-template-columns: 1fr;
        gap: 16px;
    }

    .montage-card {
        padding: 28px 24px;
    }

    /* Contact cards */
    .contact-cards {
        flex-direction: column;
        align-items: center;
    }

    .contact-card {
        width: 100%;
        max-width: 400px;
    }

    .large-btn {
        padding: 16px 28px;
        font-size: 1rem;
        width: 100%;
        max-width: 360px;
        justify-content: center;
    }

    /* Footer */
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
        text-align: center;
    }

    .footer-brand {
        align-items: center;
    }

    .footer-brand p {
        text-align: center;
        max-width: 100%;
    }

    .footer-logo {
        justify-content: center;
    }

    .footer-links-col {
        text-align: center;
    }

    .footer-links-col a {
        justify-content: center;
    }

    .social-links {
        justify-content: center;
    }

    /* Scroll to top */
    .scroll-to-top-btn {
        bottom: 20px;
        right: 20px;
        width: 44px;
        height: 44px;
    }
}

/* Small phones */
@media (max-width: 480px) {
    .stats-container {
        grid-template-columns: repeat(2, 1fr);
        gap: 16px;
    }

    .stat-number {
        font-size: 1.8rem;
    }

    .stat-label {
        font-size: 0.7rem;
    }

    .service-item {
        padding: 24px;
    }
}