:root {
    --bg-dark: #0f0f11;
    --bg-card: #18181b;
    --text-primary: #ffffff;
    --text-secondary: #a1a1aa;
    --accent-blue: #3b82f6;
    --accent-purple: #8b5cf6;
    --gradient-main: linear-gradient(135deg, #3b82f6 0%, #8b5cf6 100%);
    --font-main: 'Outfit', sans-serif;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

html {
    scroll-behavior: smooth;
}

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

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

/* Typography */
h1, h2, h3 {
    line-height: 1.1;
    font-weight: 700;
}

h1 { font-size: 3.5rem; letter-spacing: -0.02em; }
h2 { font-size: 2.5rem; letter-spacing: -0.01em; margin-bottom: 1rem; }
h3 { font-size: 1.5rem; margin-bottom: 0.5rem; }
p { color: var(--text-secondary); }

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

/* Buttons */
.btn-primary, .btn-secondary {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.8rem 1.5rem;
    border-radius: 50px;
    font-weight: 500;
    text-decoration: none;
    transition: var(--transition);
}

.btn-primary {
    background: var(--text-primary);
    color: var(--bg-dark);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(255, 255, 255, 0.2);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    backdrop-filter: blur(10px);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Navigation */
.navbar {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    z-index: 1000;
    padding: 1.5rem 0;
    transition: var(--transition);
    background: rgba(15, 15, 17, 0.8);
    backdrop-filter: blur(10px);
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

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

.logo {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
    text-decoration: none;
}

.nav-links {
    display: flex;
    gap: 2rem;
    align-items: center;
}

.nav-links a:not(.btn-primary) {
    color: var(--text-secondary);
    text-decoration: none;
    transition: var(--transition);
}

.nav-links a:not(.btn-primary):hover {
    color: var(--text-primary);
}

.menu-toggle {
    display: none;
    background: none;
    border: none;
    cursor: pointer;
    flex-direction: column;
    gap: 6px;
}

.menu-toggle span {
    display: block;
    width: 25px;
    height: 2px;
    background: var(--text-primary);
}

/* Hero Section */
.hero {
    min-height: 100vh;
    display: flex;
    align-items: center;
    position: relative;
    padding-top: 80px;
}

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

.hero-content p {
    font-size: 1.25rem;
    margin: 1.5rem 0 2.5rem;
    max-width: 600px;
}

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

.hero-bg-glow {
    position: absolute;
    top: 50%;
    right: -10%;
    transform: translate(-50%, -50%);
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(59,130,246,0.15) 0%, rgba(15,15,17,0) 70%);
    z-index: 1;
    pointer-events: none;
}

/* Sections */
.section {
    padding: 6rem 0;
}

.section-header {
    text-align: center;
    max-width: 700px;
    margin: 0 auto 4rem;
}

.badge {
    display: inline-block;
    padding: 0.25rem 0.75rem;
    background: rgba(59, 130, 246, 0.1);
    color: var(--accent-blue);
    border-radius: 20px;
    font-size: 0.875rem;
    font-weight: 500;
    margin-bottom: 1rem;
    border: 1px solid rgba(59, 130, 246, 0.2);
}

/* Project Card */
.project-card {
    background: var(--bg-card);
    border-radius: 24px;
    overflow: hidden;
    display: grid;
    grid-template-columns: 1fr 1fr;
    border: 1px solid rgba(255,255,255,0.05);
}

.project-content {
    padding: 3rem;
    display: flex;
    flex-direction: column;
    justify-content: center;
}

.project-desc {
    margin-bottom: 2rem;
}

.stats-grid {
    display: flex;
    gap: 3rem;
    margin-bottom: 2.5rem;
}

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

.stat-number {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-label {
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.project-links {
    display: flex;
    gap: 1.5rem;
}

.link-item {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text-primary);
    text-decoration: none;
    font-weight: 500;
    transition: var(--transition);
}

.link-item:hover {
    color: var(--accent-blue);
}

.project-visual {
    background: linear-gradient(135deg, #1e1e24 0%, #151518 100%);
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
}

/* Abstract Phone Representation */
.abstract-phone {
    width: 240px;
    height: 480px;
    background: #0f0f11;
    border-radius: 30px;
    border: 8px solid #27272a;
    position: relative;
    transform: rotate(-10deg) translateY(50px);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.5);
}

.screen {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.chat-bubble {
    padding: 10px 15px;
    border-radius: 15px;
    font-size: 0.8rem;
    max-width: 80%;
}

.left {
    background: #27272a;
    color: #a1a1aa;
    align-self: flex-start;
    border-bottom-left-radius: 2px;
}

.right {
    background: var(--accent-blue);
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 2px;
}

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

.service-card {
    background: var(--bg-card);
    padding: 2.5rem;
    border-radius: 20px;
    border: 1px solid rgba(255,255,255,0.05);
    transition: var(--transition);
}

.service-card:hover {
    transform: translateY(-5px);
    border-color: rgba(59, 130, 246, 0.3);
}

.icon-box {
    font-size: 2.5rem;
    margin-bottom: 1.5rem;
}

/* Footer */
.footer {
    padding: 4rem 0 2rem;
    border-top: 1px solid rgba(255,255,255,0.05);
}

.footer-content {
    text-align: center;
}

.footer-main h2 {
    margin-bottom: 1rem;
}

.footer-main p {
    margin-bottom: 2rem;
}

.telegram-btn {
    background: #229ED9; /* Telegram blue */
    color: white;
}
.telegram-btn:hover {
    background: #1e8bbd;
}

.footer-bottom {
    margin-top: 4rem;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Animations */
.fade-up {
    opacity: 0;
    transform: translateY(30px);
    transition: all 0.8s cubic-bezier(0.2, 0.8, 0.2, 1);
}

.fade-up.visible {
    opacity: 1;
    transform: translateY(0);
}

.delay-1 { transition-delay: 0.1s; }
.delay-2 { transition-delay: 0.2s; }
.delay-3 { transition-delay: 0.3s; }

/* Responsive */
@media (max-width: 768px) {
    h1 { font-size: 2.5rem; }
    h2 { font-size: 2rem; }
    
    .nav-links {
        position: fixed;
        top: 70px;
        left: 0;
        width: 100%;
        background: var(--bg-card);
        flex-direction: column;
        padding: 2rem;
        transform: translateY(-150%);
        transition: var(--transition);
        border-bottom: 1px solid rgba(255,255,255,0.05);
    }
    
    .nav-links.active {
        transform: translateY(0);
    }
    
    .menu-toggle {
        display: flex;
    }
    
    .project-card {
        grid-template-columns: 1fr;
    }
    
    .project-visual {
        height: 300px;
    }
    
    .abstract-phone {
        transform: rotate(-10deg) translateY(20px) scale(0.8);
    }
}