:root {
    --bg-dark: #0a0a0f;
    --bg-card: rgba(20, 20, 30, 0.4);
    --bg-card-hover: rgba(30, 30, 45, 0.6);
    --border-color: rgba(255, 255, 255, 0.08);
    --text-main: #ffffff;
    --text-muted: #9ca3af;
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --accent: #a855f7;
    --accent-glow: rgba(168, 85, 247, 0.4);
    --success: #10b981;
    --font-sans: 'Inter', sans-serif;
    --font-display: 'Space Grotesk', sans-serif;
}

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

body {
    background-color: var(--bg-dark);
    color: var(--text-main);
    font-family: var(--font-sans);
    line-height: 1.6;
    overflow-x: hidden;
    position: relative;
}

/* Background Glow Effects */
.glow-bg {
    position: absolute;
    border-radius: 50%;
    filter: blur(120px);
    z-index: -1;
    opacity: 0.5;
    animation: float 20s infinite alternate ease-in-out;
}

.glow-1 {
    top: -10%;
    left: -10%;
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary) 0%, transparent 70%);
}

.glow-2 {
    top: 40%;
    right: -10%;
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--accent) 0%, transparent 70%);
    animation-delay: -5s;
}

.glow-3 {
    bottom: -10%;
    left: 20%;
    width: 700px;
    height: 700px;
    background: radial-gradient(circle, rgba(16, 185, 129, 0.2) 0%, transparent 70%);
    animation-delay: -10s;
}

@keyframes float {
    0% { transform: translate(0, 0); }
    100% { transform: translate(50px, 50px); }
}

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

/* Typography */
h1, h2, h3, h4 {
    font-family: var(--font-display);
    line-height: 1.2;
}

.gradient-text {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* Glassmorphism */
.glass-card {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-color);
    border-radius: 20px;
    box-shadow: 0 4px 30px rgba(0, 0, 0, 0.1);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.glass-card:hover {
    background: var(--bg-card-hover);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-5px);
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.3), 0 0 20px var(--accent-glow);
}

/* Buttons */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 1.5rem;
    border-radius: 12px;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s ease;
    cursor: pointer;
    border: none;
    font-family: var(--font-sans);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--accent));
    color: white;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    box-shadow: 0 6px 25px rgba(168, 85, 247, 0.5);
    transform: scale(1.02);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.05);
    color: white;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
}

.btn-sm {
    padding: 0.5rem 1rem;
    font-size: 0.875rem;
}

/* Navbar */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 100;
    padding: 1.5rem 0;
    transition: background 0.3s, backdrop-filter 0.3s;
}

.navbar.scrolled {
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
    padding: 1rem 0;
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-family: var(--font-display);
    font-size: 1.5rem;
    font-weight: 700;
    color: white;
}

.logo i {
    color: var(--primary);
}

.nav-links {
    display: flex;
    gap: 2rem;
    list-style: none;
}

.nav-links a {
    color: var(--text-muted);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color 0.3s;
}

.nav-links a:hover {
    color: white;
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    padding-top: 5rem;
}

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

.badge {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    background: rgba(99, 102, 241, 0.1);
    color: #818cf8;
    padding: 0.5rem 1rem;
    border-radius: 100px;
    font-size: 0.875rem;
    font-weight: 600;
    border: 1px solid rgba(99, 102, 241, 0.2);
    margin-bottom: 1.5rem;
}

.hero-title {
    font-size: 4rem;
    margin-bottom: 1.5rem;
}

.hero-desc {
    font-size: 1.25rem;
    color: var(--text-muted);
    margin-bottom: 2rem;
    max-width: 90%;
}

.hero-actions {
    display: flex;
    gap: 1rem;
}

/* Hero Stats Card */
.hero-stats {
    padding: 2rem;
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
    animation: slideUp 1s ease-out;
}

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

.stat-row {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.stat-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.stat-icon {
    width: 48px;
    height: 48px;
    border-radius: 12px;
    background: rgba(99, 102, 241, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--primary);
}

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

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

.stat-value {
    font-size: 1.25rem;
    font-weight: 700;
    font-family: var(--font-display);
}

/* Architecture Features */
.section-header {
    text-align: center;
    margin-bottom: 4rem;
    padding-top: 4rem;
}

.section-header h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.section-header p {
    color: var(--text-muted);
    font-size: 1.1rem;
}

.grid-features {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 2rem;
    margin-bottom: 6rem;
}

.feature-card {
    padding: 2.5rem;
    opacity: 0;
    transform: translateY(20px);
}

.feature-card.visible {
    opacity: 1;
    transform: translateY(0);
}

.feature-icon {
    width: 60px;
    height: 60px;
    border-radius: 16px;
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.1), rgba(168, 85, 247, 0.1));
    color: var(--primary);
    font-size: 2rem;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 1.5rem;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.feature-card h3 {
    font-size: 1.5rem;
    margin-bottom: 1rem;
}

.feature-card p {
    color: var(--text-muted);
    margin-bottom: 1.5rem;
}

.feature-list {
    list-style: none;
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
}

.feature-list li {
    display: flex;
    align-items: flex-start;
    gap: 0.75rem;
    color: #cbd5e1;
    font-size: 0.95rem;
}

.feature-list li i {
    color: var(--success);
    margin-top: 0.2rem;
}

.feature-list strong {
    color: white;
}

/* Demo Section */
.demo-section {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 4rem;
    align-items: center;
    margin-bottom: 8rem;
    padding-top: 2rem;
}

.demo-content h2 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
}

.demo-content > p {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-bottom: 3rem;
}

.demo-features {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.demo-item {
    display: flex;
    gap: 1.5rem;
}

.demo-icon {
    width: 50px;
    height: 50px;
    flex-shrink: 0;
    border-radius: 12px;
    background: rgba(255, 255, 255, 0.05);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    color: var(--accent);
    border: 1px solid rgba(255, 255, 255, 0.08);
}

.demo-item h4 {
    font-size: 1.25rem;
    margin-bottom: 0.25rem;
}

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

/* Telegram Mockup */
.telegram-mockup {
    border-radius: 24px;
    overflow: hidden;
    background: #18222d; /* Tg Dark Theme */
    border: 1px solid #2b3a4a;
}

.tg-header {
    background: #242f3d;
    padding: 1rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    border-bottom: 1px solid rgba(0,0,0,0.2);
}

.tg-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--primary), var(--accent));
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
}

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

.tg-info span {
    font-size: 0.8rem;
    color: #7f91a4;
}

.tg-body {
    padding: 1.5rem;
    min-height: 300px;
    background: #0e1621;
}

.tg-message {
    background: #182533;
    border-radius: 12px 12px 12px 2px;
    padding: 0.5rem;
    max-width: 90%;
}

.product-img {
    height: 150px;
    background: #242f3d;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 4rem;
    color: #4a5c6f;
    margin-bottom: 0.75rem;
}

.msg-text {
    font-size: 0.95rem;
    color: #e4e6eb;
    padding: 0 0.5rem;
    line-height: 1.4;
}

.msg-text del {
    color: #7f91a4;
}

.msg-buttons {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    margin-top: 1rem;
}

.tg-btn {
    background: #2b5278;
    color: #64b5ef;
    border: none;
    padding: 0.75rem;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.2s;
}

.tg-btn:hover {
    background: #33618d;
}

.tg-btn-group {
    display: flex;
    gap: 0.5rem;
}

.tg-btn-group .tg-btn {
    flex: 1;
}

.tg-input {
    background: #18222d;
    padding: 1rem 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    color: #7f91a4;
    border-top: 1px solid rgba(0,0,0,0.2);
}

.tg-input i {
    font-size: 1.5rem;
    color: #64b5ef;
}

/* Footer */
footer {
    border-top: 1px solid var(--border-color);
    padding: 3rem 0;
    margin-top: 4rem;
}

.footer-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 1rem;
}

.footer-content p {
    color: var(--text-muted);
}

/* Responsive */
@media (max-width: 992px) {
    .hero-title { font-size: 3rem; }
    .hero-container, .demo-section { grid-template-columns: 1fr; gap: 3rem; }
}

@media (max-width: 768px) {
    .nav-links { display: none; }
    .grid-features { grid-template-columns: 1fr; }
    .hero-title { font-size: 2.5rem; }
    .hero { padding-top: 8rem; }
}