/* ============================================
   FutureWeb - Modern Design System
   ============================================ */

/* === CSS Variables === */
:root {
    /* Colors */
    --primary: #6C3CE1;
    --primary-light: #8B5CF6;
    --primary-dark: #5521C6;
    --primary-glow: rgba(108, 60, 225, 0.3);

    --secondary: #06D6A0;
    --secondary-light: #34E0B5;

    --accent: #FF6B6B;

    --dark: #0B0F1A;
    --dark-100: #111827;
    --dark-200: #1F2937;
    --dark-300: #374151;
    --dark-400: #4B5563;

    --light: #F8FAFC;
    --light-100: #F1F5F9;
    --light-200: #E2E8F0;
    --light-300: #CBD5E1;

    --text: #E2E8F0;
    --text-muted: #94A3B8;
    --text-dark: #0F172A;

    --white: #ffffff;
    --black: #000000;

    /* Gradients */
    --gradient-primary: linear-gradient(135deg, #6C3CE1 0%, #8B5CF6 50%, #06D6A0 100%);
    --gradient-hero: linear-gradient(135deg, #0B0F1A 0%, #1a1145 50%, #0B0F1A 100%);
    --gradient-card: linear-gradient(135deg, rgba(108, 60, 225, 0.1) 0%, rgba(6, 214, 160, 0.05) 100%);

    /* Typography */
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;

    /* Spacing */
    --section-padding: 120px;

    /* Border Radius */
    --radius-sm: 8px;
    --radius: 12px;
    --radius-lg: 20px;
    --radius-xl: 28px;
    --radius-full: 100px;

    /* Transitions */
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);

    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.1);
    --shadow: 0 4px 20px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 8px 40px rgba(0, 0, 0, 0.2);
    --shadow-glow: 0 0 40px rgba(108, 60, 225, 0.3);
}

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

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

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

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

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

ul {
    list-style: none;
}

/* === Preloader === */
#preloader {
    position: fixed;
    inset: 0;
    background: var(--dark);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 10000;
    transition: opacity 0.5s, visibility 0.5s;
}

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

.loader {
    text-align: center;
}

.loader-text {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    display: block;
    margin-bottom: 20px;
}

.loader-bar {
    width: 200px;
    height: 3px;
    background: var(--dark-200);
    border-radius: 10px;
    overflow: hidden;
    margin: 0 auto;
}

.loader-bar::after {
    content: '';
    display: block;
    width: 50%;
    height: 100%;
    background: var(--gradient-primary);
    border-radius: 10px;
    animation: loading 1s ease-in-out infinite;
}

@keyframes loading {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(300%); }
}

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

/* === Typography === */
h1, h2, h3, h4, h5, h6 {
    color: var(--white);
    line-height: 1.2;
    font-weight: 700;
}

h1 { font-size: clamp(2.5rem, 5vw, 4rem); }
h2 { font-size: clamp(2rem, 4vw, 3rem); }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }

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

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 80px;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.125rem;
    margin-top: 16px;
}

.section-tag {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    background: rgba(108, 60, 225, 0.15);
    color: var(--primary-light);
    border-radius: var(--radius-full);
    font-size: 0.875rem;
    font-weight: 600;
    letter-spacing: 0.5px;
    text-transform: uppercase;
    margin-bottom: 20px;
    border: 1px solid rgba(108, 60, 225, 0.2);
}

/* === Buttons === */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: var(--radius-full);
    font-family: var(--font);
    font-size: 1rem;
    font-weight: 600;
    border: none;
    cursor: pointer;
    transition: var(--transition);
    white-space: nowrap;
}

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

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 30px var(--primary-glow);
}

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 2px solid rgba(255, 255, 255, 0.2);
}

.btn-outline:hover {
    border-color: var(--primary-light);
    color: var(--primary-light);
    transform: translateY(-2px);
}

.btn-lg {
    padding: 18px 40px;
    font-size: 1.0625rem;
}

.btn-block {
    width: 100%;
}

.btn i {
    font-size: 0.875em;
    transition: transform var(--transition);
}

.btn:hover i {
    transform: translateX(4px);
}

/* ============================================
   NAVIGATION
   ============================================ */
#header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    transition: var(--transition);
}

#header.scrolled {
    background: rgba(11, 15, 26, 0.9);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.navbar {
    padding: 20px 0;
    transition: var(--transition);
}

#header.scrolled .navbar {
    padding: 12px 0;
}

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

.nav-logo {
    display: flex;
    align-items: center;
}

.logo-img {
    height: 36px;
    width: auto;
}

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

.nav-link {
    padding: 8px 16px;
    color: var(--text-muted);
    font-size: 0.9375rem;
    font-weight: 500;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

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

.nav-link.active {
    background: rgba(108, 60, 225, 0.15);
    color: var(--primary-light);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.btn-nav {
    padding: 10px 24px;
    font-size: 0.875rem;
}

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

.hamburger span {
    width: 24px;
    height: 2px;
    background: var(--white);
    border-radius: 2px;
    transition: var(--transition);
}

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

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

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

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 100%;
    height: 100vh;
    background: var(--dark);
    padding: 100px 24px 40px;
    transition: var(--transition-slow);
    z-index: 999;
    display: flex;
    flex-direction: column;
    gap: 40px;
}

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

.mobile-nav {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.mobile-link {
    display: block;
    padding: 16px;
    color: var(--text-muted);
    font-size: 1.25rem;
    font-weight: 500;
    border-radius: var(--radius);
    transition: var(--transition);
}

.mobile-link:hover {
    color: var(--white);
    background: rgba(108, 60, 225, 0.1);
}

.btn-mobile {
    text-align: center;
}

/* ============================================
   HERO
   ============================================ */
.hero {
    position: relative;
    min-height: 100vh;
    display: flex;
    align-items: center;
    overflow: hidden;
    padding: 120px 0 80px;
}

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

.hero-gradient {
    position: absolute;
    inset: 0;
    background: var(--gradient-hero);
}

.hero-gradient::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 100%;
    height: 100%;
    background: radial-gradient(circle, rgba(108, 60, 225, 0.15) 0%, transparent 70%);
    animation: float 15s ease-in-out infinite;
}

.hero-gradient::after {
    content: '';
    position: absolute;
    bottom: -30%;
    right: -30%;
    width: 80%;
    height: 80%;
    background: radial-gradient(circle, rgba(6, 214, 160, 0.08) 0%, transparent 70%);
    animation: float 20s ease-in-out infinite reverse;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0); }
    33% { transform: translate(30px, -30px); }
    66% { transform: translate(-20px, 20px); }
}

.hero-grid {
    position: absolute;
    inset: 0;
    background-image:
        linear-gradient(rgba(108, 60, 225, 0.03) 1px, transparent 1px),
        linear-gradient(90deg, rgba(108, 60, 225, 0.03) 1px, transparent 1px);
    background-size: 60px 60px;
    mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
    -webkit-mask-image: radial-gradient(ellipse at center, black 30%, transparent 70%);
}

.hero-particles {
    position: absolute;
    inset: 0;
}

.hero .container {
    position: relative;
    z-index: 1;
}

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

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    background: rgba(108, 60, 225, 0.1);
    border: 1px solid rgba(108, 60, 225, 0.2);
    border-radius: var(--radius-full);
    color: var(--primary-light);
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 24px;
}

.hero-badge i {
    font-size: 0.75rem;
}

.hero h1 {
    margin-bottom: 24px;
    font-weight: 800;
    letter-spacing: -0.02em;
}

.hero-desc {
    font-size: 1.25rem;
    color: var(--text-muted);
    max-width: 520px;
    margin-bottom: 40px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 60px;
}

.hero-stats {
    display: flex;
    align-items: center;
    gap: 32px;
}

.hero-stat {
    display: flex;
    flex-direction: column;
}

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

.stat-plus {
    font-size: 2rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    margin-top: 4px;
}

.hero-stat-divider {
    width: 1px;
    height: 50px;
    background: rgba(255, 255, 255, 0.1);
}

/* Hero Visual */
.hero-visual {
    position: relative;
}

.hero-image-wrapper {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    max-width: 560px;
    margin-left: auto;
}

.hero-mockup {
    position: relative;
    z-index: 1;
    transform: perspective(1000px) rotateY(-5deg) rotateX(2deg);
    transition: transform 0.6s ease;
}

.hero-visual:hover .hero-mockup {
    transform: perspective(1000px) rotateY(-2deg) rotateX(1deg);
}

.mockup-browser {
    background: var(--dark-100);
    border-radius: var(--radius-lg);
    overflow: hidden;
    border: 1px solid rgba(255, 255, 255, 0.08);
    box-shadow: var(--shadow-lg), var(--shadow-glow);
}

.browser-dots {
    display: flex;
    gap: 8px;
    padding: 16px 20px;
    background: rgba(0, 0, 0, 0.3);
}

.browser-dots span {
    width: 12px;
    height: 12px;
    border-radius: 50%;
}

.browser-dots span:nth-child(1) { background: #FF5F57; }
.browser-dots span:nth-child(2) { background: #FEBC2E; }
.browser-dots span:nth-child(3) { background: #28C840; }

.browser-content {
    padding: 24px;
    min-height: 320px;
}

.mockup-header {
    height: 24px;
    width: 60%;
    background: rgba(108, 60, 225, 0.2);
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
}

.mockup-hero-block {
    height: 120px;
    background: linear-gradient(135deg, rgba(108, 60, 225, 0.15), rgba(6, 214, 160, 0.1));
    border-radius: var(--radius);
    margin-bottom: 20px;
}

.mockup-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 12px;
}

.mockup-card {
    height: 80px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-sm);
    border: 1px solid rgba(255, 255, 255, 0.05);
}

/* Floating Cards */
.hero-floating-card {
    position: absolute;
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 14px 20px;
    background: rgba(17, 24, 39, 0.9);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius);
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--white);
    z-index: 5;
    box-shadow: var(--shadow);
    animation: floatCard 6s ease-in-out infinite;
}

.hero-floating-card i {
    color: var(--primary-light);
}

.card-1 {
    top: 10%;
    right: -10px;
    animation-delay: 0s;
}

.card-2 {
    bottom: 25%;
    left: -20px;
    animation-delay: -2s;
}

.card-3 {
    bottom: 5%;
    right: 10%;
    animation-delay: -4s;
}

@keyframes floatCard {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-15px); }
}

/* Scroll Indicator */
.hero-scroll {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    z-index: 2;
}

.scroll-indicator {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    color: var(--text-muted);
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.scroll-line {
    width: 1px;
    height: 40px;
    background: linear-gradient(to bottom, var(--primary-light), transparent);
    animation: scrollLine 2s ease-in-out infinite;
}

@keyframes scrollLine {
    0% { opacity: 1; transform: scaleY(0); transform-origin: top; }
    50% { opacity: 1; transform: scaleY(1); transform-origin: top; }
    51% { transform: scaleY(1); transform-origin: bottom; }
    100% { opacity: 0; transform: scaleY(0); transform-origin: bottom; }
}

/* ============================================
   SERVICES
   ============================================ */
.services {
    padding: var(--section-padding) 0;
    position: relative;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(108, 60, 225, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

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

.service-card {
    position: relative;
    background: rgba(17, 24, 39, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    padding: 40px 32px;
    transition: var(--transition);
    overflow: hidden;
}

.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: var(--gradient-card);
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-8px);
    border-color: rgba(108, 60, 225, 0.3);
    box-shadow: var(--shadow-glow);
}

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

.service-card.featured {
    border-color: rgba(108, 60, 225, 0.3);
    background: rgba(108, 60, 225, 0.08);
}

.service-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 4px 14px;
    background: var(--gradient-primary);
    color: var(--white);
    font-size: 0.75rem;
    font-weight: 600;
    border-radius: var(--radius-full);
}

.service-icon {
    position: relative;
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 24px;
    z-index: 1;
}

.service-icon .icon-bg {
    position: absolute;
    inset: 0;
    background: var(--gradient-primary);
    border-radius: var(--radius);
    opacity: 0.15;
}

.service-icon i {
    font-size: 1.5rem;
    color: var(--primary-light);
    position: relative;
    z-index: 1;
}

.service-card h3 {
    margin-bottom: 12px;
    position: relative;
    z-index: 1;
}

.service-card > p {
    color: var(--text-muted);
    font-size: 0.9375rem;
    margin-bottom: 20px;
    position: relative;
    z-index: 1;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 10px;
    margin-bottom: 24px;
    position: relative;
    z-index: 1;
}

.service-features li {
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.service-features li i {
    color: var(--secondary);
    font-size: 0.75rem;
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    color: var(--primary-light);
    font-weight: 600;
    font-size: 0.9375rem;
    position: relative;
    z-index: 1;
}

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

.service-link i {
    font-size: 0.75rem;
    transition: transform var(--transition);
}

.service-link:hover i {
    transform: translateX(6px);
}

/* ============================================
   ABOUT
   ============================================ */
.about {
    padding: var(--section-padding) 0;
    position: relative;
}

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

.about-visual {
    position: relative;
}

.about-image-stack {
    position: relative;
    width: 100%;
    aspect-ratio: 1;
    background: linear-gradient(135deg, rgba(108, 60, 225, 0.1), rgba(6, 214, 160, 0.05));
    border-radius: var(--radius-xl);
    border: 1px solid rgba(255, 255, 255, 0.06);
    display: flex;
    align-items: center;
    justify-content: center;
}

.about-pattern {
    position: absolute;
    inset: 20px;
    background-image:
        radial-gradient(circle, rgba(108, 60, 225, 0.15) 1px, transparent 1px);
    background-size: 24px 24px;
    border-radius: var(--radius-lg);
    opacity: 0.5;
}

.about-experience-badge {
    position: absolute;
    top: 30px;
    right: -10px;
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 28px;
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(108, 60, 225, 0.3);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-glow);
    z-index: 2;
}

.exp-number {
    font-size: 2.5rem;
    font-weight: 800;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    line-height: 1;
}

.exp-text {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.4;
}

.about-tech-stack {
    position: absolute;
    bottom: 30px;
    left: -10px;
    display: flex;
    gap: 8px;
    padding: 16px 20px;
    background: rgba(17, 24, 39, 0.95);
    backdrop-filter: blur(10px);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-lg);
    z-index: 2;
}

.tech-icon {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(108, 60, 225, 0.1);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.tech-icon:hover {
    background: rgba(108, 60, 225, 0.25);
    transform: translateY(-3px);
}

.tech-icon i {
    font-size: 1.25rem;
    color: var(--primary-light);
}

.about-content .section-tag {
    display: inline-block;
}

.about-content h2 {
    margin-bottom: 20px;
}

.about-desc {
    color: var(--text-muted);
    font-size: 1.0625rem;
    margin-bottom: 40px;
    line-height: 1.8;
}

.about-features {
    display: flex;
    flex-direction: column;
    gap: 28px;
    margin-bottom: 40px;
}

.about-feature {
    display: flex;
    gap: 20px;
    align-items: flex-start;
}

.feature-icon {
    flex-shrink: 0;
    width: 52px;
    height: 52px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(108, 60, 225, 0.12);
    border-radius: var(--radius);
    border: 1px solid rgba(108, 60, 225, 0.15);
}

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

.about-feature h4 {
    margin-bottom: 4px;
    font-size: 1.0625rem;
}

.about-feature p {
    color: var(--text-muted);
    font-size: 0.9375rem;
}

/* ============================================
   STATS
   ============================================ */
.stats {
    padding: 80px 0;
    position: relative;
}

.stats::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent, rgba(108, 60, 225, 0.05), transparent);
}

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

.stat-card {
    text-align: center;
    padding: 40px 24px;
    background: rgba(17, 24, 39, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-lg);
    transition: var(--transition);
}

.stat-card:hover {
    border-color: rgba(108, 60, 225, 0.3);
    transform: translateY(-4px);
}

.stat-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 56px;
    height: 56px;
    margin: 0 auto 16px;
    background: rgba(108, 60, 225, 0.12);
    border-radius: var(--radius);
}

.stat-icon i {
    font-size: 1.25rem;
    color: var(--primary-light);
}

.stat-count {
    display: block;
    font-size: 3rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
    margin-bottom: 8px;
}

.stat-title {
    color: var(--text-muted);
    font-size: 0.9375rem;
}

/* ============================================
   REFERENCES
   ============================================ */
.references {
    padding: var(--section-padding) 0;
}

.ref-filter {
    display: flex;
    justify-content: center;
    gap: 8px;
    margin-bottom: 48px;
}

.filter-btn {
    padding: 10px 24px;
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    border-radius: var(--radius-full);
    font-family: var(--font);
    font-size: 0.9375rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.filter-btn:hover {
    border-color: rgba(108, 60, 225, 0.4);
    color: var(--white);
}

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

.ref-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
}

.ref-card {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: rgba(17, 24, 39, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.06);
    transition: var(--transition);
}

.ref-card:hover {
    transform: translateY(-8px);
    border-color: rgba(108, 60, 225, 0.3);
    box-shadow: var(--shadow-glow);
}

.ref-image {
    position: relative;
    overflow: hidden;
    aspect-ratio: 16/10;
}

.ref-image img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: transform 0.6s ease;
}

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

.ref-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(to top, rgba(11, 15, 26, 0.8), transparent);
    display: flex;
    align-items: flex-end;
    padding: 16px;
    opacity: 0;
    transition: var(--transition);
}

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

.ref-tech {
    padding: 6px 16px;
    background: rgba(108, 60, 225, 0.9);
    color: var(--white);
    border-radius: var(--radius-full);
    font-size: 0.8125rem;
    font-weight: 600;
}

.ref-info {
    padding: 20px 24px;
}

.ref-info h4 {
    font-size: 1.125rem;
    margin-bottom: 4px;
}

.ref-info p {
    color: var(--text-muted);
    font-size: 0.875rem;
}

/* ============================================
   PROCESS
   ============================================ */
.process {
    padding: var(--section-padding) 0;
    position: relative;
}

.process::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent, rgba(108, 60, 225, 0.03), transparent);
}

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

.process-timeline::before {
    content: '';
    position: absolute;
    top: 50px;
    left: 12.5%;
    right: 12.5%;
    height: 2px;
    background: linear-gradient(90deg,
        rgba(108, 60, 225, 0.3),
        rgba(6, 214, 160, 0.3));
    z-index: 0;
}

.process-step {
    text-align: center;
    position: relative;
    z-index: 1;
}

.step-number {
    font-size: 3rem;
    font-weight: 900;
    background: var(--gradient-primary);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    opacity: 0.3;
    margin-bottom: 8px;
}

.step-icon {
    width: 64px;
    height: 64px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--dark);
    border: 2px solid rgba(108, 60, 225, 0.3);
    border-radius: 50%;
    margin: 0 auto 20px;
}

.step-icon i {
    font-size: 1.25rem;
    color: var(--primary-light);
}

.step-content h4 {
    margin-bottom: 8px;
}

.step-content p {
    color: var(--text-muted);
    font-size: 0.9375rem;
    max-width: 250px;
    margin: 0 auto;
}

/* ============================================
   PRICING
   ============================================ */
.pricing {
    padding: var(--section-padding) 0;
}

.pricing-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 24px;
    align-items: stretch;
}

.pricing-card {
    position: relative;
    background: rgba(17, 24, 39, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-xl);
    padding: 40px 32px;
    transition: var(--transition);
    display: flex;
    flex-direction: column;
}

.pricing-card:hover {
    transform: translateY(-8px);
    border-color: rgba(108, 60, 225, 0.2);
}

.pricing-card.popular {
    border-color: rgba(108, 60, 225, 0.4);
    background: rgba(108, 60, 225, 0.08);
    box-shadow: var(--shadow-glow);
    transform: scale(1.05);
}

.pricing-card.popular:hover {
    transform: scale(1.05) translateY(-8px);
}

.pricing-popular-badge {
    position: absolute;
    top: -14px;
    left: 50%;
    transform: translateX(-50%);
    padding: 6px 24px;
    background: var(--gradient-primary);
    color: var(--white);
    font-size: 0.8125rem;
    font-weight: 700;
    border-radius: var(--radius-full);
    white-space: nowrap;
}

.pricing-header {
    margin-bottom: 24px;
}

.pricing-header h3 {
    font-size: 1.5rem;
    margin-bottom: 4px;
}

.pricing-header p {
    color: var(--text-muted);
    font-size: 0.9375rem;
}

.pricing-price {
    display: flex;
    align-items: flex-start;
    gap: 4px;
    margin-bottom: 32px;
    padding-bottom: 32px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.price-amount {
    font-size: 3rem;
    font-weight: 800;
    color: var(--white);
    line-height: 1;
}

.price-currency {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary-light);
    margin-top: 4px;
}

.pricing-features {
    display: flex;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 32px;
    flex-grow: 1;
}

.pricing-features li {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 0.9375rem;
    color: var(--text);
}

.pricing-features li i {
    font-size: 0.75rem;
    color: var(--secondary);
}

.pricing-features li.disabled {
    color: var(--dark-400);
}

.pricing-features li.disabled i {
    color: var(--dark-400);
}

.pricing-note {
    text-align: center;
    margin-top: 48px;
}

.pricing-note p {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 24px;
    background: rgba(108, 60, 225, 0.08);
    border: 1px solid rgba(108, 60, 225, 0.15);
    border-radius: var(--radius-full);
    color: var(--text-muted);
    font-size: 0.9375rem;
}

.pricing-note i {
    color: var(--primary-light);
}

/* ============================================
   CONTACT
   ============================================ */
.contact {
    padding: var(--section-padding) 0;
    position: relative;
}

.contact::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(180deg, transparent, rgba(108, 60, 225, 0.03), transparent);
}

.contact-grid {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    gap: 80px;
    align-items: flex-start;
    position: relative;
    z-index: 1;
}

.contact-info .section-tag {
    display: inline-block;
}

.contact-info h2 {
    margin-bottom: 16px;
}

.contact-info > p {
    color: var(--text-muted);
    font-size: 1.0625rem;
    margin-bottom: 40px;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 40px;
}

.contact-item {
    display: flex;
    align-items: center;
    gap: 16px;
}

.contact-icon {
    flex-shrink: 0;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(108, 60, 225, 0.12);
    border-radius: var(--radius);
    border: 1px solid rgba(108, 60, 225, 0.15);
}

.contact-icon i {
    font-size: 1.125rem;
    color: var(--primary-light);
}

.contact-label {
    display: block;
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 2px;
}

.contact-item a,
.contact-item span {
    color: var(--text);
    font-weight: 500;
}

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

.contact-socials {
    display: flex;
    gap: 12px;
}

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius);
    color: var(--text-muted);
    transition: var(--transition);
}

.social-link:hover {
    background: rgba(108, 60, 225, 0.2);
    border-color: rgba(108, 60, 225, 0.3);
    color: var(--primary-light);
}

/* Contact Form */
.contact-form-wrapper {
    background: rgba(17, 24, 39, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-xl);
    padding: 40px;
}

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

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

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text);
    margin-bottom: 8px;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 14px 18px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius);
    color: var(--white);
    font-family: var(--font);
    font-size: 1rem;
    transition: var(--transition);
    outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: var(--dark-400);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    border-color: var(--primary-light);
    box-shadow: 0 0 0 3px rgba(108, 60, 225, 0.15);
}

.form-group select {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2394A3B8' d='M6 8L1 3h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    cursor: pointer;
}

.form-group select option {
    background: var(--dark-100);
    color: var(--white);
}

.form-group textarea {
    resize: vertical;
    min-height: 120px;
}

.form-checkbox {
    display: flex;
    align-items: flex-start;
    gap: 12px;
}

.form-checkbox input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-top: 2px;
    accent-color: var(--primary);
    flex-shrink: 0;
}

.form-checkbox label {
    font-size: 0.8125rem;
    color: var(--text-muted);
    margin-bottom: 0;
    cursor: pointer;
}

.form-checkbox a {
    color: var(--primary-light);
    text-decoration: underline;
}

/* ============================================
   FOOTER
   ============================================ */
.footer {
    padding: 80px 0 0;
    background: var(--dark-100);
    border-top: 1px solid rgba(255, 255, 255, 0.04);
}

.footer-grid {
    display: grid;
    grid-template-columns: 1.5fr 1fr 1fr 1fr;
    gap: 48px;
    padding-bottom: 60px;
}

.footer-logo {
    height: 32px;
    width: auto;
    margin-bottom: 16px;
}

.footer-brand p {
    color: var(--text-muted);
    font-size: 0.9375rem;
    margin-bottom: 24px;
    max-width: 300px;
}

.footer-socials {
    display: flex;
    gap: 10px;
}

.footer-socials a {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    color: var(--text-muted);
    transition: var(--transition);
}

.footer-socials a:hover {
    background: rgba(108, 60, 225, 0.2);
    border-color: rgba(108, 60, 225, 0.3);
    color: var(--primary-light);
}

.footer-links h4 {
    font-size: 1rem;
    margin-bottom: 20px;
    color: var(--white);
}

.footer-links ul {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.footer-links a {
    color: var(--text-muted);
    font-size: 0.9375rem;
    transition: var(--transition);
}

.footer-links a:hover {
    color: var(--primary-light);
    transform: translateX(4px);
    display: inline-block;
}

.footer-bottom {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 24px 0;
    border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer-bottom p {
    color: var(--text-muted);
    font-size: 0.8125rem;
}

/* ============================================
   BACK TO TOP
   ============================================ */
.back-to-top {
    position: fixed;
    bottom: 32px;
    right: 32px;
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    border: none;
    border-radius: var(--radius);
    color: var(--white);
    font-size: 1rem;
    cursor: pointer;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px);
    transition: var(--transition);
    z-index: 100;
    box-shadow: var(--shadow-glow);
}

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

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

/* ============================================
   ANIMATIONS
   ============================================ */
[data-animate] {
    opacity: 0;
    transform: translateY(30px);
    transition: opacity 0.6s ease, transform 0.6s ease;
}

[data-animate="fade-up"].animated {
    opacity: 1;
    transform: translateY(0);
}

[data-animate="fade-right"] {
    transform: translateX(-30px);
}

[data-animate="fade-right"].animated {
    opacity: 1;
    transform: translateX(0);
}

[data-animate="fade-left"] {
    transform: translateX(30px);
}

[data-animate="fade-left"].animated {
    opacity: 1;
    transform: translateX(0);
}

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

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

    .hero-content {
        grid-template-columns: 1fr;
        gap: 60px;
        text-align: center;
    }

    .hero-desc {
        margin-left: auto;
        margin-right: auto;
    }

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

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

    .hero-visual {
        max-width: 500px;
        margin: 0 auto;
    }

    .hero-image-wrapper {
        margin: 0 auto;
    }

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

    .about-grid {
        grid-template-columns: 1fr;
        gap: 60px;
    }

    .about-image-stack {
        max-width: 500px;
        margin: 0 auto;
    }

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

    .process-timeline {
        grid-template-columns: repeat(2, 1fr);
        gap: 40px;
    }

    .process-timeline::before {
        display: none;
    }

    .pricing-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .pricing-card.popular {
        transform: none;
    }

    .pricing-card.popular:hover {
        transform: translateY(-8px);
    }

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

    .footer-grid {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
}

/* Mobile */
@media (max-width: 768px) {
    :root {
        --section-padding: 60px;
    }

    .nav-menu {
        display: none;
    }

    .btn-nav {
        display: none;
    }

    .hamburger {
        display: flex;
    }

    .hero {
        padding: 100px 0 60px;
        min-height: auto;
    }

    .hero h1 {
        font-size: 2.25rem;
    }

    .hero-desc {
        font-size: 1.0625rem;
    }

    .hero-buttons .btn {
        width: 100%;
    }

    .hero-stats {
        gap: 20px;
    }

    .stat-number {
        font-size: 2rem;
    }

    .hero-floating-card {
        display: none;
    }

    .hero-scroll {
        display: none;
    }

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

    .ref-grid {
        grid-template-columns: 1fr;
        max-width: 500px;
        margin: 0 auto;
    }

    .ref-filter {
        flex-wrap: wrap;
    }

    .process-timeline {
        grid-template-columns: 1fr;
    }

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

    .contact-form-wrapper {
        padding: 24px;
    }

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

    .footer-bottom {
        flex-direction: column;
        gap: 8px;
        text-align: center;
    }

    .section-header {
        margin-bottom: 48px;
    }
}

/* Small Mobile */
@media (max-width: 480px) {
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }

    .hero-stat-divider {
        width: 50px;
        height: 1px;
    }

    h1 {
        font-size: 2rem;
    }

    h2 {
        font-size: 1.75rem;
    }

    .pricing-card {
        padding: 32px 24px;
    }
}