/* Music Downloader Bot - Modern Dark Theme */
@import url('https://fonts.googleapis.com/css2?family=Outfit:wght@300;400;500;600;700&display=swap');

:root {
    --bg-primary: #0f172a;
    --bg-secondary: #1e293b;
    --bg-card: #1e3a5f;
    --accent: #3b82f6;
    --accent-glow: rgba(59, 130, 246, 0.25);
    --text-primary: #ffffff;
    --text-secondary: #94a3b8;
    --border: rgba(255, 255, 255, 0.1);
    --gradient: linear-gradient(135deg, #1e3a5f 0%, #2563eb 50%, #1e40af 100%);
}

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

html {
    scroll-behavior: smooth;
}

body {
    font-family: 'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
}

/* Background Effects */
.bg-glow {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: 
        linear-gradient(135deg, transparent 40%, rgba(59, 130, 246, 0.08) 50%, transparent 60%),
        linear-gradient(45deg, transparent 30%, rgba(30, 64, 175, 0.1) 50%, transparent 70%),
        radial-gradient(ellipse at 20% 20%, rgba(59, 130, 246, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at 80% 80%, rgba(30, 58, 95, 0.2) 0%, transparent 50%);
    pointer-events: none;
    z-index: -1;
}

.bg-glow::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        repeating-linear-gradient(90deg, transparent 0px, transparent 150px, rgba(59, 130, 246, 0.02) 150px, rgba(59, 130, 246, 0.02) 151px),
        repeating-linear-gradient(0deg, transparent 0px, transparent 150px, rgba(59, 130, 246, 0.02) 150px, rgba(59, 130, 246, 0.02) 151px);
}

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

/* Header */
header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 100;
    padding: 20px 0;
    background: rgba(10, 10, 15, 0.8);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border);
}

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

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.5rem;
    font-weight: 600;
    text-decoration: none;
    color: var(--text-primary);
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, #1e3a5f 0%, #3b82f6 100%);
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.nav-links {
    display: flex;
    align-items: center;
    gap: 32px;
}

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

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

.lang-switch {
    display: flex;
    gap: 8px;
    padding: 6px;
    background: var(--bg-card);
    border-radius: 10px;
    border: 1px solid var(--border);
}

.lang-switch a {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.3s;
}

.lang-switch a.active {
    background: var(--accent);
    color: white;
}

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

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

.hero-text h1 {
    font-size: clamp(2.5rem, 5vw, 4rem);
    font-weight: 700;
    line-height: 1.1;
    margin-bottom: 24px;
}

.hero-text h1 span {
    background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 50%, #2563eb 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.hero-text p {
    font-size: 1.25rem;
    color: var(--text-secondary);
    margin-bottom: 40px;
    max-width: 480px;
}

.cta-buttons {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
}

.btn {
    display: inline-flex;
    align-items: center;
    gap: 10px;
    padding: 16px 32px;
    border-radius: 14px;
    font-size: 1rem;
    font-weight: 600;
    text-decoration: none;
    transition: all 0.3s;
    cursor: pointer;
    border: none;
}

.btn-primary {
    background: white;
    color: #1e40af;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.2);
}

.btn-primary:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.btn-secondary {
    background: transparent;
    color: var(--text-primary);
    border: 2px solid rgba(255, 255, 255, 0.4);
}

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

/* Phone Mockup */
.hero-visual {
    display: flex;
    justify-content: center;
}

.phone-mockup {
    width: 280px;
    height: 560px;
    background: var(--bg-card);
    border-radius: 40px;
    border: 3px solid var(--border);
    padding: 12px;
    position: relative;
    box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
    animation: float 6s ease-in-out infinite;
}

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

.phone-screen {
    width: 100%;
    height: 100%;
    background: var(--bg-secondary);
    border-radius: 32px;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.phone-header {
    padding: 16px;
    background: linear-gradient(135deg, #1e3a5f 0%, #3b82f6 100%);
    color: white;
    text-align: center;
}

.phone-header h3 {
    font-size: 1rem;
    font-weight: 600;
}

.phone-content {
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chat-bubble {
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 0.875rem;
    max-width: 85%;
    animation: fadeInUp 0.5s ease-out forwards;
    opacity: 0;
}

.chat-bubble.bot {
    background: var(--bg-card);
    border-bottom-left-radius: 4px;
}

.chat-bubble.user {
    background: var(--accent);
    color: white;
    align-self: flex-end;
    border-bottom-right-radius: 4px;
}

.chat-bubble:nth-child(1) { animation-delay: 0.5s; }
.chat-bubble:nth-child(2) { animation-delay: 1s; }
.chat-bubble:nth-child(3) { animation-delay: 1.5s; }
.chat-bubble:nth-child(4) { animation-delay: 2s; }

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Features Section */
.features {
    padding: 120px 0;
}

.section-header {
    text-align: center;
    margin-bottom: 64px;
}

.section-header h2 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.section-header p {
    color: var(--text-secondary);
    font-size: 1.125rem;
}

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

.feature-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 32px;
    transition: all 0.3s;
}

.feature-card:hover {
    transform: translateY(-8px);
    border-color: var(--accent);
    box-shadow: 0 20px 40px rgba(0, 0, 0, 0.3);
}

.feature-icon {
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, #1e3a5f 0%, #3b82f6 100%);
    border-radius: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    margin-bottom: 20px;
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.3);
}

.feature-card h3 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 12px;
}

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

/* How It Works */
.how-it-works {
    padding: 120px 0;
    background: var(--bg-secondary);
}

.steps {
    display: flex;
    justify-content: center;
    gap: 40px;
    flex-wrap: wrap;
}

.step {
    text-align: center;
    max-width: 280px;
}

.step-number {
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, #1e3a5f 0%, #3b82f6 100%);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem;
    font-weight: 700;
    margin: 0 auto 20px;
    box-shadow: 0 8px 24px rgba(59, 130, 246, 0.3);
}

.step h3 {
    font-size: 1.25rem;
    margin-bottom: 12px;
}

.step p {
    color: var(--text-secondary);
}

/* CTA Section */
.cta-section {
    padding: 120px 0;
    text-align: center;
}

.cta-box {
    background: linear-gradient(135deg, #0f172a 0%, #1e3a5f 50%, #1e40af 100%);
    border-radius: 32px;
    padding: 80px 40px;
    position: relative;
    overflow: hidden;
}

.cta-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: 
        linear-gradient(135deg, transparent 40%, rgba(59, 130, 246, 0.1) 50%, transparent 60%),
        linear-gradient(45deg, transparent 40%, rgba(59, 130, 246, 0.08) 50%, transparent 60%),
        repeating-linear-gradient(90deg, transparent 0px, transparent 100px, rgba(59, 130, 246, 0.03) 100px, rgba(59, 130, 246, 0.03) 101px),
        repeating-linear-gradient(0deg, transparent 0px, transparent 100px, rgba(59, 130, 246, 0.03) 100px, rgba(59, 130, 246, 0.03) 101px);
    opacity: 1;
}

.cta-box h2 {
    font-size: 2.5rem;
    margin-bottom: 16px;
    position: relative;
    font-weight: 800;
}

.cta-box p {
    font-size: 1.25rem;
    opacity: 0.8;
    margin-bottom: 32px;
    position: relative;
}

.cta-buttons-cta {
    display: flex;
    gap: 16px;
    justify-content: center;
    flex-wrap: wrap;
    position: relative;
}

.cta-box .btn {
    background: white;
    color: #1e40af;
    position: relative;
    font-weight: 600;
}

.cta-box .btn-outline {
    background: transparent;
    color: white;
    border: 2px solid rgba(255, 255, 255, 0.5);
}

.cta-box .btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.3);
}

.cta-box .btn-outline:hover {
    border-color: white;
    background: rgba(255, 255, 255, 0.1);
}

/* Footer */
footer {
    padding: 60px 0 30px;
    border-top: 1px solid var(--border);
}

.footer-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 20px;
}

.footer-links {
    display: flex;
    gap: 24px;
}

.footer-links a {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.3s;
}

.footer-links a:hover {
    color: var(--text-primary);
}

.copyright {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Responsive */
@media (max-width: 968px) {
    .hero-content {
        grid-template-columns: 1fr;
        text-align: center;
    }
    
    .hero-text p {
        margin: 0 auto 40px;
    }
    
    .cta-buttons {
        justify-content: center;
    }
    
    .features-grid {
        grid-template-columns: 1fr;
        max-width: 400px;
        margin: 0 auto;
    }
    
    .phone-mockup {
        width: 240px;
        height: 480px;
    }
}

@media (max-width: 640px) {
    .nav-links {
        display: none;
    }
    
    .steps {
        flex-direction: column;
        align-items: center;
    }
    
    .cta-box {
        padding: 60px 24px;
    }
    
    .footer-content {
        flex-direction: column;
        text-align: center;
    }
}