/* =============================================
   SystemLab.uz — Premium 3D Landing Page CSS
   ============================================= */

/* ===== CSS Variables ===== */
:root {
    --primary: #0a1628;
    --primary-light: #0f1f3a;
    --primary-mid: #152a4a;
    --accent: #00d4aa;
    --accent-glow: rgba(0, 212, 170, 0.3);
    --accent-blue: #4da8da;
    --accent-blue-glow: rgba(77, 168, 218, 0.3);
    --white: #ffffff;
    --white-70: rgba(255, 255, 255, 0.7);
    --white-50: rgba(255, 255, 255, 0.5);
    --white-20: rgba(255, 255, 255, 0.2);
    --white-10: rgba(255, 255, 255, 0.1);
    --white-05: rgba(255, 255, 255, 0.05);
    --gradient-accent: linear-gradient(135deg, #00d4aa, #4da8da);
    --gradient-bg: linear-gradient(180deg, #0a1628 0%, #0f1f3a 50%, #0a1628 100%);
    --gradient-card: linear-gradient(135deg, rgba(255,255,255,0.05) 0%, rgba(255,255,255,0.02) 100%);
    --glass: rgba(15, 31, 58, 0.6);
    --glass-border: rgba(255,255,255,0.08);
    --shadow-lg: 0 25px 60px rgba(0,0,0,0.4);
    --shadow-glow: 0 0 40px rgba(0, 212, 170, 0.15);
    --radius: 16px;
    --radius-sm: 8px;
    --radius-lg: 24px;
    --transition: all 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    --transition-fast: all 0.2s ease;
    --font: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --nav-height: 80px;
}

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

html {
    scroll-behavior: smooth;
    scroll-padding-top: var(--nav-height);
}

body {
    font-family: var(--font);
    background: var(--primary);
    color: var(--white);
    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-fast);
}

ul {
    list-style: none;
}

/* ===== Particles Canvas ===== */
#particles-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    z-index: 0;
    pointer-events: none;
}

/* ===== Container ===== */
.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ===== Navigation ===== */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    height: var(--nav-height);
    display: flex;
    align-items: center;
    transition: var(--transition);
}

.navbar::before {
    content: '';
    position: absolute;
    inset: 0;
    z-index: -1;
    transition: var(--transition);
    pointer-events: none;
}

.navbar.scrolled {
    border-bottom: 1px solid var(--glass-border);
    box-shadow: 0 4px 30px rgba(0,0,0,0.3);
}

.navbar.scrolled::before {
    background: rgba(10, 22, 40, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
}


.nav-container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 24px;
    width: 100%;
    display: flex;
    align-items: center;
    justify-content: space-between;
}

/* Language Switcher */
.nav-lang-item {
    display: flex;
    align-items: center;
    margin-left: 1rem;
}

.lang-switcher {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.lang-btn {
    background: transparent;
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-muted);
    font-size: 0.8rem;
    font-weight: 600;
    padding: 0.3rem 0.6rem;
    border-radius: 4px;
    cursor: pointer;
    transition: all 0.3s ease;
}

.lang-btn:hover {
    color: var(--text);
    border-color: rgba(255, 255, 255, 0.3);
}

.lang-btn.active {
    background: rgba(0, 212, 170, 0.1);
    color: var(--accent);
    border-color: rgba(0, 212, 170, 0.3);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
    font-weight: 800;
    z-index: 1001;
}

.logo-icon {
    font-size: 1.8rem;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    filter: drop-shadow(0 0 8px var(--accent-glow));
}

.logo-text {
    letter-spacing: -0.02em;
}

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

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

.nav-link {
    padding: 8px 18px;
    border-radius: 100px;
    font-size: 0.9rem;
    font-weight: 500;
    color: var(--white-70);
    transition: var(--transition-fast);
    position: relative;
}

.nav-link:hover,
.nav-link.active {
    color: var(--white);
    background: var(--white-10);
}

.nav-link.active {
    background: var(--white-10);
}

.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 6px;
    background: none;
    border: none;
    cursor: pointer;
    padding: 8px;
    z-index: 1001;
}

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

.nav-toggle.active span:nth-child(1) {
    transform: rotate(45deg) translate(5px, 6px);
}
.nav-toggle.active span:nth-child(2) {
    opacity: 0;
}
.nav-toggle.active span:nth-child(3) {
    transform: rotate(-45deg) translate(5px, -6px);
}

/* ===== Buttons ===== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 14px 32px;
    border-radius: 100px;
    font-family: var(--font);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    border: none;
    position: relative;
    overflow: hidden;
}

.btn-primary {
    background: var(--gradient-accent);
    color: var(--primary);
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, rgba(255,255,255,0.25), transparent);
    opacity: 0;
    transition: var(--transition);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 212, 170, 0.4);
}

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

.btn-outline {
    background: transparent;
    color: var(--white);
    border: 1.5px solid var(--white-20);
}

.btn-outline:hover {
    border-color: var(--accent);
    color: var(--accent);
    transform: translateY(-2px);
    box-shadow: 0 10px 30px rgba(0, 212, 170, 0.15);
}

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

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

.section-tag {
    display: inline-block;
    padding: 6px 18px;
    border-radius: 100px;
    font-size: 0.8rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    background: var(--white-05);
    border: 1px solid var(--glass-border);
    color: var(--accent);
    margin-bottom: 20px;
}

.section-title {
    font-size: clamp(2rem, 4vw, 3rem);
    font-weight: 800;
    line-height: 1.2;
    letter-spacing: -0.02em;
    margin-bottom: 16px;
}

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

.section-subtitle {
    font-size: 1.1rem;
    color: var(--white-50);
    max-width: 560px;
    margin: 0 auto;
}

/* ===== Hero Section ===== */
.hero {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    position: relative;
    padding: 120px 24px 60px;
    overflow: hidden;
}

.hero::before {
    content: '';
    position: absolute;
    top: -20%;
    left: -20%;
    width: 60%;
    height: 60%;
    background: radial-gradient(circle, rgba(0, 212, 170, 0.08) 0%, transparent 70%);
    pointer-events: none;
}

.hero::after {
    content: '';
    position: absolute;
    bottom: -20%;
    right: -20%;
    width: 60%;
    height: 60%;
    background: radial-gradient(circle, rgba(77, 168, 218, 0.06) 0%, transparent 70%);
    pointer-events: none;
}

.hero-content {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: center;
    max-width: 1200px;
    width: 100%;
    position: relative;
    z-index: 1;
}

.hero-badge {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 20px;
    border-radius: 100px;
    font-size: 0.85rem;
    font-weight: 500;
    background: var(--white-05);
    border: 1px solid var(--glass-border);
    color: var(--accent);
    margin-bottom: 28px;
    width: fit-content;
}

.badge-dot {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.5; transform: scale(0.8); }
}

.hero-title {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 900;
    line-height: 1.1;
    letter-spacing: -0.03em;
    margin-bottom: 24px;
}

.title-line {
    display: block;
}

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

.hero-description {
    font-size: 1.1rem;
    color: var(--white-50);
    margin-bottom: 36px;
    max-width: 480px;
    line-height: 1.8;
}

.hero-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 48px;
}

.hero-stats {
    display: flex;
    gap: 40px;
}

.stat {
    position: relative;
}

.stat:not(:last-child)::after {
    content: '';
    position: absolute;
    right: -20px;
    top: 50%;
    transform: translateY(-50%);
    width: 1px;
    height: 40px;
    background: var(--white-10);
}

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

.stat-plus {
    font-size: 1.5rem;
    font-weight: 700;
    background: var(--gradient-accent);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    display: block;
    font-size: 0.85rem;
    color: var(--white-50);
    margin-top: 4px;
}

/* ===== 3D Device Scene ===== */
.hero-3d {
    position: relative;
    perspective: 1200px;
}

.device-scene {
    position: relative;
    width: 100%;
    height: 500px;
    transform-style: preserve-3d;
}

/* Phone Device */
.phone-device {
    position: absolute;
    top: 50%;
    left: 20%;
    transform: translate(-50%, -55%) rotateY(-15deg) rotateX(5deg);
    width: 160px;
    height: 300px;
    animation: float-phone 6s ease-in-out infinite;
    z-index: 3;
}

.device-screen {
    width: 100%;
    height: 100%;
    background: var(--primary-light);
    border-radius: 20px;
    border: 2px solid var(--white-10);
    overflow: hidden;
    box-shadow: var(--shadow-lg), inset 0 1px 0 var(--white-10);
}

.screen-header {
    display: flex;
    gap: 4px;
    padding: 8px 12px;
    justify-content: center;
}

.screen-dot {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--white-20);
}

.screen-dot.red { background: #ff5f57; }
.screen-dot.yellow { background: #ffbd2e; }
.screen-dot.green { background: #28c840; }

.phone-screen-content {
    padding: 8px 12px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.app-header-mock {
    height: 30px;
    background: var(--gradient-accent);
    border-radius: 8px;
    opacity: 0.3;
}

.app-card-mock {
    height: 50px;
    background: var(--white-05);
    border: 1px solid var(--glass-border);
    border-radius: 8px;
}

.app-card-mock.short {
    height: 30px;
}

.app-list-mock {
    height: 20px;
    background: var(--white-05);
    border-radius: 4px;
}

.app-nav-mock {
    height: 25px;
    background: var(--white-05);
    border-radius: 12px;
    margin-top: auto;
}

@keyframes float-phone {
    0%, 100% { transform: translate(-50%, -55%) rotateY(-15deg) rotateX(5deg); }
    50% { transform: translate(-50%, -60%) rotateY(-12deg) rotateX(8deg); }
}

/* Laptop Device */
.laptop-device {
    position: absolute;
    top: 55%;
    left: 55%;
    transform: translate(-40%, -45%) rotateY(15deg) rotateX(-5deg);
    width: 260px;
    animation: float-laptop 7s ease-in-out infinite;
    z-index: 2;
}

.laptop-screen {
    height: 180px;
    border-radius: 12px 12px 0 0;
}

.laptop-screen-content {
    padding: 8px;
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.web-nav-mock {
    height: 16px;
    background: var(--white-05);
    border-radius: 4px;
}

.web-hero-mock {
    height: 50px;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1), rgba(77, 168, 218, 0.1));
    border-radius: 6px;
    border: 1px solid var(--glass-border);
}

.web-cards-mock {
    display: flex;
    gap: 6px;
}

.web-card-mock {
    flex: 1;
    height: 40px;
    background: var(--white-05);
    border: 1px solid var(--glass-border);
    border-radius: 4px;
}

.laptop-base {
    height: 10px;
    background: linear-gradient(180deg, var(--white-10), var(--white-05));
    border-radius: 0 0 4px 4px;
    margin: 0 -10px;
    border-top: 1px solid var(--white-10);
}

@keyframes float-laptop {
    0%, 100% { transform: translate(-40%, -45%) rotateY(15deg) rotateX(-5deg); }
    50% { transform: translate(-40%, -50%) rotateY(12deg) rotateX(-2deg); }
}

/* Bot Device */
.bot-device {
    position: absolute;
    top: 15%;
    right: 5%;
    transform: rotateY(-10deg) rotateZ(5deg);
    width: 80px;
    height: 100px;
    animation: float-bot 5s ease-in-out infinite;
    z-index: 4;
}

.bot-body {
    width: 100%;
    height: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
}

.bot-head {
    width: 64px;
    height: 48px;
    background: var(--glass);
    border: 1.5px solid var(--accent);
    border-radius: 16px 16px 12px 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    position: relative;
    box-shadow: 0 0 20px var(--accent-glow);
}

.bot-eye {
    width: 10px;
    height: 10px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent);
    animation: blink 3s ease-in-out infinite;
}

.bot-antenna {
    position: absolute;
    top: -12px;
    left: 50%;
    transform: translateX(-50%);
    width: 2px;
    height: 12px;
    background: var(--accent);
}

.bot-antenna::after {
    content: '';
    position: absolute;
    top: -5px;
    left: 50%;
    transform: translateX(-50%);
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 10px var(--accent);
}

@keyframes blink {
    0%, 45%, 55%, 100% { opacity: 1; }
    50% { opacity: 0.2; }
}

.bot-chat {
    width: 70px;
}

.chat-bubble {
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 12px;
    padding: 8px 12px;
    display: flex;
    gap: 4px;
    justify-content: center;
}

.chat-dot {
    width: 6px;
    height: 6px;
    background: var(--accent);
    border-radius: 50%;
    animation: typing 1.4s ease-in-out infinite;
}

.chat-dot:nth-child(2) { animation-delay: 0.2s; }
.chat-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-6px); opacity: 1; }
}

@keyframes float-bot {
    0%, 100% { transform: rotateY(-10deg) rotateZ(5deg) translateY(0); }
    50% { transform: rotateY(-5deg) rotateZ(3deg) translateY(-15px); }
}

/* Device Glows */
.device-glow {
    position: absolute;
    bottom: -20px;
    left: 50%;
    transform: translateX(-50%);
    width: 120%;
    height: 60px;
    background: radial-gradient(ellipse, var(--accent-glow), transparent 70%);
    filter: blur(20px);
    opacity: 0.5;
}

.laptop-glow {
    width: 140%;
    bottom: -10px;
}

.bot-glow {
    width: 100%;
    height: 40px;
    bottom: -10px;
}

/* Floating Elements */
.floating-element {
    position: absolute;
    font-size: 1.5rem;
    color: var(--accent);
    opacity: 0.15;
    animation: float-el 8s ease-in-out infinite;
}

.el-1 { top: 5%; left: 10%; animation-delay: 0s; font-size: 2rem; }
.el-2 { top: 70%; left: 5%; animation-delay: 2s; }
.el-3 { top: 20%; right: 10%; animation-delay: 4s; }
.el-4 { bottom: 15%; right: 15%; animation-delay: 6s; }

@keyframes float-el {
    0%, 100% { transform: translateY(0) rotate(0deg); opacity: 0.15; }
    50% { transform: translateY(-20px) rotate(180deg); opacity: 0.3; }
}

/* Scroll Indicator */
.hero-scroll-indicator {
    position: absolute;
    bottom: 40px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    z-index: 1;
}

.hero-scroll-indicator span {
    font-size: 0.75rem;
    color: var(--white-50);
    letter-spacing: 0.1em;
    text-transform: uppercase;
}

.scroll-mouse {
    width: 24px;
    height: 38px;
    border: 2px solid var(--white-20);
    border-radius: 12px;
    position: relative;
}

.scroll-wheel {
    width: 4px;
    height: 8px;
    background: var(--accent);
    border-radius: 2px;
    position: absolute;
    top: 6px;
    left: 50%;
    transform: translateX(-50%);
    animation: scroll-anim 2s ease-in-out infinite;
}

@keyframes scroll-anim {
    0% { top: 6px; opacity: 1; }
    100% { top: 22px; opacity: 0; }
}

/* ===== Services Section ===== */
.services {
    padding: 120px 0;
    position: relative;
    z-index: 1;
}

.services::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--white-10), transparent);
}

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

.service-card {
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 36px 28px;
    position: relative;
    overflow: hidden;
    transition: var(--transition);
    transform-style: preserve-3d;
}

.service-card::before {
    content: '';
    position: absolute;
    inset: 0;
    background: radial-gradient(circle at top right, rgba(0, 212, 170, 0.05) 0%, transparent 60%);
    opacity: 0;
    transition: var(--transition);
}

.service-card:hover {
    border-color: var(--accent);
    transform: translateY(-8px);
    box-shadow: var(--shadow-glow);
}

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

.service-card.featured {
    border-color: rgba(0, 212, 170, 0.3);
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.05) 0%, rgba(77, 168, 218, 0.03) 100%);
}

.featured-badge {
    position: absolute;
    top: 20px;
    right: 20px;
    padding: 4px 14px;
    border-radius: 100px;
    font-size: 0.7rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    background: var(--gradient-accent);
    color: var(--primary);
}

/* Service 3D Mini Devices */
.service-3d-container {
    height: 120px;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 20px;
    perspective: 600px;
}

.phone-3d-small {
    width: 60px;
    height: 100px;
    transform: rotateY(-12deg) rotateX(5deg);
    transition: var(--transition);
}

.service-card:hover .phone-3d-small {
    transform: rotateY(0deg) rotateX(0deg) scale(1.05);
}

.mini-screen {
    width: 100%;
    height: 100%;
    background: var(--primary);
    border-radius: 10px;
    border: 1.5px solid var(--white-10);
    overflow: hidden;
    padding: 6px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.mini-app-bar {
    height: 10px;
    background: var(--gradient-accent);
    border-radius: 4px;
    opacity: 0.4;
}

.mini-app-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mini-card {
    height: 18px;
    background: var(--white-05);
    border: 1px solid var(--glass-border);
    border-radius: 4px;
}

.mini-card.short {
    height: 12px;
    width: 70%;
}

.mini-list {
    height: 8px;
    background: var(--white-05);
    border-radius: 2px;
}

.mini-app-nav {
    height: 10px;
    background: var(--white-05);
    border-radius: 6px;
}

/* Laptop mini */
.laptop-3d-small {
    transform: rotateY(10deg) rotateX(-3deg);
    transition: var(--transition);
}

.service-card:hover .laptop-3d-small {
    transform: rotateY(0deg) rotateX(0deg) scale(1.05);
}

.mini-laptop-screen {
    width: 120px;
    height: 78px;
    background: var(--primary);
    border-radius: 6px 6px 0 0;
    border: 1.5px solid var(--white-10);
    overflow: hidden;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
}

.mini-browser-bar {
    display: flex;
    gap: 3px;
    padding: 4px 6px;
    background: var(--white-05);
}

.mini-dot {
    width: 4px;
    height: 4px;
    border-radius: 50%;
    background: var(--white-20);
}

.mini-web-content {
    padding: 4px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.mini-web-nav {
    height: 6px;
    background: var(--white-05);
    border-radius: 2px;
}

.mini-web-hero {
    height: 22px;
    background: linear-gradient(135deg, rgba(0, 212, 170, 0.1), rgba(77, 168, 218, 0.1));
    border-radius: 3px;
    border: 1px solid var(--glass-border);
}

.mini-web-grid {
    display: flex;
    gap: 3px;
}

.mini-web-block {
    flex: 1;
    height: 16px;
    background: var(--white-05);
    border: 1px solid var(--glass-border);
    border-radius: 2px;
}

.mini-laptop-base {
    width: 130px;
    height: 5px;
    margin: 0 auto;
    background: var(--white-10);
    border-radius: 0 0 3px 3px;
    margin-left: -5px;
}

/* Bot mini */
.bot-3d-small {
    transition: var(--transition);
}

.service-card:hover .bot-3d-small {
    transform: scale(1.1);
}

.mini-bot {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
}

.mini-bot-head {
    width: 50px;
    height: 36px;
    background: var(--glass);
    border: 1.5px solid var(--accent);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    box-shadow: 0 0 15px var(--accent-glow);
}

.mini-bot-eye {
    width: 8px;
    height: 8px;
    background: var(--accent);
    border-radius: 50%;
    box-shadow: 0 0 6px var(--accent);
}

.mini-bot-body {
    display: flex;
    flex-direction: column;
    gap: 4px;
    width: 60px;
}

.mini-bot-chat {
    height: 10px;
    background: var(--glass);
    border: 1px solid var(--glass-border);
    border-radius: 6px;
}

.mini-bot-chat.short {
    width: 70%;
}

.service-icon {
    width: 56px;
    height: 56px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    background: var(--white-05);
    border: 1px solid var(--glass-border);
    color: var(--accent);
    margin-bottom: 20px;
    transition: var(--transition);
}

.service-card:hover .service-icon {
    background: var(--accent);
    color: var(--primary);
    box-shadow: 0 0 20px var(--accent-glow);
}

.service-title {
    font-size: 1.3rem;
    font-weight: 700;
    margin-bottom: 12px;
}

.service-description {
    font-size: 0.9rem;
    color: var(--white-50);
    margin-bottom: 20px;
    line-height: 1.7;
}

.service-features {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.service-features li {
    font-size: 0.85rem;
    color: var(--white-70);
    padding-left: 20px;
    position: relative;
}

.service-features li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--gradient-accent);
}

.service-footer {
    padding-top: 20px;
    border-top: 1px solid var(--glass-border);
}

.service-link {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--accent);
    transition: var(--transition-fast);
}

.service-link:hover {
    gap: 14px;
}

/* ===== Portfolio Section ===== */
.portfolio {
    padding: 120px 0;
    position: relative;
    z-index: 1;
}

.portfolio::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--white-10), transparent);
}

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

.portfolio-item {
    border-radius: var(--radius-lg);
    overflow: hidden;
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    transition: var(--transition);
    transform-style: preserve-3d;
}

.portfolio-item:hover {
    transform: translateY(-10px);
    border-color: var(--accent);
    box-shadow: var(--shadow-glow);
}

.portfolio-image-wrapper {
    position: relative;
    overflow: hidden;
    aspect-ratio: 4/3;
}

.portfolio-image {
    width: 100%;
    height: 100%;
    object-fit: cover;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-image {
    transform: scale(1.05);
}

.portfolio-overlay {
    position: absolute;
    inset: 0;
    background: linear-gradient(0deg, rgba(10, 22, 40, 0.9) 0%, transparent 60%);
    display: flex;
    align-items: flex-end;
    padding: 20px;
    opacity: 0;
    transition: var(--transition);
}

.portfolio-item:hover .portfolio-overlay {
    opacity: 1;
}

.portfolio-tags {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

.portfolio-tag {
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 600;
    background: var(--accent);
    color: var(--primary);
}

.portfolio-info {
    padding: 24px;
}

.portfolio-title {
    font-size: 1.15rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.portfolio-desc {
    font-size: 0.85rem;
    color: var(--white-50);
}

/* ===== Clients / Testimonials Section ===== */
.clients {
    padding: 120px 0;
    position: relative;
    z-index: 1;
}

.clients::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--white-10), transparent);
}

.testimonials-slider {
    overflow: hidden;
    position: relative;
}

.testimonials-track {
    display: flex;
    gap: 24px;
    transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.testimonial-card {
    min-width: calc(33.333% - 16px);
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 36px;
    flex-shrink: 0;
    transition: var(--transition);
}

.testimonial-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-glow);
}

.testimonial-stars {
    color: #ffd700;
    font-size: 1.1rem;
    margin-bottom: 20px;
    letter-spacing: 2px;
}

.testimonial-text {
    font-size: 0.95rem;
    color: var(--white-70);
    line-height: 1.8;
    margin-bottom: 24px;
    font-style: italic;
}

.testimonial-author {
    display: flex;
    align-items: center;
    gap: 14px;
}

.author-avatar {
    width: 48px;
    height: 48px;
    border-radius: 50%;
    background: var(--gradient-accent);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 0.85rem;
    color: var(--primary);
}

.author-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.author-role {
    font-size: 0.8rem;
    color: var(--white-50);
    margin-top: 2px;
}

.testimonial-dots {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-top: 32px;
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    border: 1.5px solid var(--white-20);
    background: transparent;
    cursor: pointer;
    transition: var(--transition-fast);
    padding: 0;
}

.dot.active {
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 10px var(--accent-glow);
}

.dot:hover {
    border-color: var(--accent);
}

/* ===== Contact Section ===== */
.contact {
    padding: 120px 0;
    position: relative;
    z-index: 1;
}

.contact::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, transparent, var(--white-10), transparent);
}

.contact-wrapper {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 60px;
    align-items: start;
}

.contact-description {
    font-size: 1.05rem;
    color: var(--white-50);
    margin-bottom: 36px;
    line-height: 1.8;
}

.contact-details {
    display: flex;
    flex-direction: column;
    gap: 24px;
    margin-bottom: 36px;
}

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

.contact-icon {
    width: 48px;
    height: 48px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius);
    background: var(--white-05);
    border: 1px solid var(--glass-border);
    color: var(--accent);
    flex-shrink: 0;
}

.contact-label {
    font-size: 0.8rem;
    color: var(--white-50);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 2px;
}

.contact-value {
    font-size: 0.95rem;
    color: var(--white);
    font-weight: 500;
}

a.contact-value:hover {
    color: var(--accent);
}

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

.social-link {
    width: 44px;
    height: 44px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    background: var(--white-05);
    border: 1px solid var(--glass-border);
    color: var(--white-70);
    transition: var(--transition);
}

.social-link:hover {
    background: var(--accent);
    color: var(--primary);
    border-color: var(--accent);
    transform: translateY(-4px);
    box-shadow: 0 8px 20px var(--accent-glow);
}

/* Contact Form */
.contact-form {
    background: var(--gradient-card);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    padding: 40px;
}

.form-group {
    margin-bottom: 24px;
}

.form-label {
    display: block;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--white-70);
    margin-bottom: 8px;
}

.form-input {
    width: 100%;
    padding: 14px 18px;
    background: var(--white-05);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-sm);
    color: var(--white);
    font-family: var(--font);
    font-size: 0.95rem;
    transition: var(--transition-fast);
    outline: none;
}

.form-input::placeholder {
    color: var(--white-20);
}

.form-input:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(0, 212, 170, 0.1);
}

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

/* ===== Footer ===== */
.footer {
    padding: 60px 0 30px;
    border-top: 1px solid var(--glass-border);
    position: relative;
    z-index: 1;
}

.footer-content {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr;
    gap: 60px;
    margin-bottom: 48px;
}

.footer-desc {
    color: var(--white-50);
    font-size: 0.9rem;
    margin-top: 16px;
    max-width: 300px;
    line-height: 1.7;
}

.footer-links h4 {
    font-size: 0.9rem;
    font-weight: 700;
    margin-bottom: 18px;
    color: var(--white);
}

.footer-links a {
    display: block;
    font-size: 0.85rem;
    color: var(--white-50);
    padding: 6px 0;
    transition: var(--transition-fast);
}

.footer-links a:hover {
    color: var(--accent);
    padding-left: 6px;
}

.footer-bottom {
    padding-top: 30px;
    border-top: 1px solid var(--glass-border);
    text-align: center;
}

.footer-bottom p {
    font-size: 0.8rem;
    color: var(--white-50);
}

/* ===== Scroll Animations ===== */
.animate-on-scroll {
    opacity: 0;
    transform: translateY(40px);
    transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94),
                transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94);
}

.animate-on-scroll.visible {
    opacity: 1;
    transform: translateY(0);
}

.animate-on-scroll:nth-child(2) { transition-delay: 0.1s; }
.animate-on-scroll:nth-child(3) { transition-delay: 0.2s; }
.animate-on-scroll:nth-child(4) { transition-delay: 0.3s; }

/* ===== Responsive ===== */
@media (max-width: 1024px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
        gap: 40px;
    }
    
    .hero-text {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .hero-description {
        margin-left: auto;
        margin-right: auto;
    }
    
    .hero-buttons {
        justify-content: center;
    }
    
    .hero-stats {
        justify-content: center;
    }
    
    .hero-3d {
        max-width: 500px;
        margin: 0 auto;
    }
    
    .device-scene {
        height: 350px;
    }
    
    .services-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .services-grid .service-card:last-child {
        grid-column: 1 / -1;
        max-width: 500px;
        justify-self: center;
    }
    
    .portfolio-grid {
        grid-template-columns: 1fr 1fr;
    }
    
    .portfolio-grid .portfolio-item:last-child {
        grid-column: 1 / -1;
        max-width: 500px;
        justify-self: center;
    }
    
    .testimonial-card {
        min-width: calc(50% - 12px);
    }
    
    .contact-wrapper {
        grid-template-columns: 1fr;
        gap: 40px;
    }
    
    .footer-content {
        grid-template-columns: 1fr 1fr;
        gap: 40px;
    }
    
    .footer-brand {
        grid-column: 1 / -1;
    }
}

@media (max-width: 768px) {
    :root {
        --nav-height: 64px;
    }

    .nav-lang-item {
        margin-left: 0;
        margin-top: 10px;
    }

    .nav-toggle {
        display: flex;
    }
    
    .nav-menu {
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        bottom: 0;
        background: rgba(10, 22, 40, 0.98);
        backdrop-filter: blur(20px);
        flex-direction: column;
        justify-content: center;
        align-items: center;
        gap: 20px;
        opacity: 0;
        visibility: hidden;
        transition: var(--transition);
        z-index: 999;
    }
    
    .nav-menu.active {
        opacity: 1;
        visibility: visible;
    }
    
    .nav-link {
        font-size: 1.2rem;
        padding: 12px 24px;
    }
    
    .hero {
        padding: 100px 20px 60px;
    }
    
    .hero-title {
        font-size: clamp(2rem, 8vw, 3rem);
    }
    
    .hero-stats {
        gap: 24px;
    }
    
    .stat-number {
        font-size: 1.5rem;
    }
    
    .device-scene {
        height: 280px;
    }
    
    .phone-device {
        width: 120px;
        height: 220px;
        left: 5%;
        top: 40%;
    }
    
    .laptop-device {
        width: 180px;
        left: 55%;
        top: 60%;
    }
    
    .laptop-screen {
        height: 130px;
    }
    
    .bot-device {
        width: 60px;
        height: 75px;
    }
    
    .services-grid,
    .portfolio-grid {
        grid-template-columns: 1fr;
    }
    
    .services-grid .service-card:last-child,
    .portfolio-grid .portfolio-item:last-child {
        max-width: 100%;
    }
    
    .testimonial-card {
        min-width: 100%;
    }
    
    .contact-form {
        padding: 28px;
    }
    
    .footer-content {
        grid-template-columns: 1fr;
        gap: 32px;
        text-align: center;
    }
    
    .footer-brand {
        display: flex;
        flex-direction: column;
        align-items: center;
    }
    
    .footer-desc {
        text-align: center;
    }
}

@media (max-width: 480px) {
    .hero-buttons {
        flex-direction: column;
        width: 100%;
    }
    
    .btn {
        justify-content: center;
    }
    
    .hero-stats {
        flex-direction: column;
        gap: 16px;
    }
    
    .stat::after {
        display: none;
    }
    
    .section-title {
        font-size: 1.8rem;
    }
}

/* ===== Selection ===== */
::selection {
    background: var(--accent);
    color: var(--primary);
}

/* ===== Scrollbar ===== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: var(--primary);
}

::-webkit-scrollbar-thumb {
    background: var(--primary-mid);
    border-radius: 4px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--accent);
}

/* ===== Form Success State ===== */
.form-success {
    text-align: center;
    padding: 40px 20px;
}

.form-success-icon {
    width: 64px;
    height: 64px;
    background: var(--gradient-accent);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 20px;
    font-size: 1.5rem;
}

.form-success h3 {
    font-size: 1.3rem;
    margin-bottom: 10px;
}

.form-success p {
    color: var(--white-50);
    font-size: 0.95rem;
}