/* ============================================
   MediaFlow - Main Styles
   ============================================ */

:root {
    --primary-gradient: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    --primary-color: #667eea;
    --primary-light: #818cf8;
    --secondary-color: #764ba2;
    --bg-primary: #0f0f23;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #16213e;
    --bg-card: rgba(26, 26, 46, 0.8);
    --bg-glass: rgba(255, 255, 255, 0.05);
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.7);
    --text-muted: rgba(255, 255, 255, 0.5);
    --accent-success: #10b981;
    --accent-error: #ef4444;
    --glow-primary: 0 0 20px rgba(102, 126, 234, 0.5);
    --glow-neon: 0 0 30px rgba(139, 92, 246, 0.6);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.4);
    --shadow-glow: 0 0 40px rgba(102, 126, 234, 0.2);
    --border-glass: rgba(255, 255, 255, 0.15);
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 20px;
    --radius-xl: 30px;
    --radius-full: 9999px;
    --transition-fast: 0.15s ease;
    --transition-normal: 0.3s ease;
    --font-primary: 'Cairo', 'Poppins', sans-serif;
    --header-height: 80px;
    --container-max: 1200px;
}

[data-theme="light"] {
    --bg-primary: #f8fafc;
    --bg-secondary: #ffffff;
    --bg-tertiary: #f1f5f9;
    --bg-card: rgba(255, 255, 255, 0.9);
    --bg-glass: rgba(0, 0, 0, 0.03);
    --text-primary: #1e293b;
    --text-secondary: rgba(30, 41, 59, 0.7);
    --text-muted: rgba(30, 41, 59, 0.5);
    --border-glass: rgba(0, 0, 0, 0.08);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.1);
}

*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
html { scroll-behavior: smooth; }

body {
    font-family: var(--font-primary);
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.6;
    direction: rtl;
}

.bg-effects { position: fixed; inset: 0; pointer-events: none; z-index: 0; }
.gradient-orb { position: absolute; border-radius: 50%; filter: blur(80px); opacity: 0.4; }
.orb-1 { width: 600px; height: 600px; background: var(--primary-gradient); top: -200px; right: -200px; animation: float 20s infinite ease-in-out; }
.orb-2 { width: 400px; height: 400px; background: linear-gradient(135deg, #764ba2, #667eea); bottom: -100px; left: -100px; animation: float 15s infinite ease-in-out reverse; }
.orb-3 { width: 300px; height: 300px; background: var(--primary-gradient); top: 50%; left: 50%; transform: translate(-50%, -50%); animation: pulse 10s infinite; }

.music-notes { position: absolute; width: 100%; height: 100%; }
.note { position: absolute; font-size: 2rem; opacity: 0.1; color: var(--primary-light); animation: floatNote 15s infinite linear; }
.note:nth-child(1) { left: 10%; animation-delay: 0s; }
.note:nth-child(2) { left: 25%; animation-delay: 3s; }
.note:nth-child(3) { left: 50%; animation-delay: 6s; }
.note:nth-child(4) { left: 75%; animation-delay: 9s; }
.note:nth-child(5) { left: 90%; animation-delay: 12s; }

.container { max-width: var(--container-max); margin: 0 auto; padding: 0 20px; position: relative; z-index: 1; }

.header {
    position: fixed; top: 0; left: 0; right: 0; height: var(--header-height);
    background: rgba(15, 15, 35, 0.8); backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--border-glass); z-index: 100;
}
[data-theme="light"] .header { background: rgba(255, 255, 255, 0.8); }
.header .container { display: flex; align-items: center; justify-content: space-between; height: 100%; }

.logo { display: flex; align-items: center; gap: 10px; text-decoration: none; color: var(--text-primary); font-weight: 700; font-size: 1.5rem; }
.logo-icon { font-size: 2rem; animation: bounce 2s infinite ease-in-out; }
.logo-text { background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }

.nav { display: flex; gap: 30px; }
.nav-link { color: var(--text-secondary); text-decoration: none; font-weight: 500; position: relative; padding: 5px 0; transition: var(--transition-fast); }
.nav-link::after { content: ''; position: absolute; bottom: 0; right: 0; width: 0; height: 2px; background: var(--primary-gradient); transition: var(--transition-normal); }
.nav-link:hover, .nav-link.active { color: var(--text-primary); }
.nav-link:hover::after, .nav-link.active::after { width: 100%; }

.header-actions { display: flex; gap: 10px; }
.btn-icon { width: 44px; height: 44px; border-radius: var(--radius-full); background: var(--bg-glass); border: 1px solid var(--border-glass); color: var(--text-primary); font-size: 1.2rem; cursor: pointer; display: flex; align-items: center; justify-content: center; transition: var(--transition-fast); }
.btn-icon:hover { background: var(--primary-gradient); border-color: transparent; box-shadow: var(--glow-primary); }

#themeToggle .icon-sun { display: none; }
#themeToggle .icon-moon { display: block; }
[data-theme="light"] #themeToggle .icon-sun { display: block; }
[data-theme="light"] #themeToggle .icon-moon { display: none; }

.main { padding-top: var(--header-height); }
.hero { min-height: calc(80vh - var(--header-height)); display: flex; align-items: center; padding: 60px 0; }
.hero-content { text-align: center; max-width: 800px; margin: 0 auto; }
.hero-title { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 800; margin-bottom: 20px; line-height: 1.2; }
.gradient-text { display: block; background: var(--primary-gradient); -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text; }
.hero-subtitle { font-size: 1.2rem; color: var(--text-secondary); margin-bottom: 40px; max-width: 600px; margin-left: auto; margin-right: auto; }

.search-container { position: relative; max-width: 700px; margin: 0 auto; }
.search-box { display: flex; gap: 10px; background: var(--bg-glass); backdrop-filter: blur(20px); border: 2px solid var(--border-glass); border-radius: var(--radius-xl); padding: 8px; transition: var(--transition-normal); box-shadow: var(--shadow-lg); }
.search-box:focus-within { border-color: var(--primary-color); box-shadow: var(--glow-primary), var(--shadow-lg); }
.search-input-wrapper { flex: 1; display: flex; align-items: center; gap: 15px; padding: 0 20px; }
.search-icon { font-size: 1.3rem; opacity: 0.7; }
.search-input { flex: 1; background: transparent; border: none; outline: none; font-size: 1.1rem; color: var(--text-primary); font-family: var(--font-primary); }
.search-input::placeholder { color: var(--text-muted); }
.search-clear { background: none; border: none; color: var(--text-muted); cursor: pointer; opacity: 0; transition: var(--transition-fast); }
.search-input:not(:placeholder-shown) + .search-clear { opacity: 1; }
.search-btn { background: var(--primary-gradient); border: none; border-radius: var(--radius-lg); padding: 15px 35px; color: white; font-weight: 600; font-size: 1rem; cursor: pointer; font-family: var(--font-primary); transition: var(--transition-normal); position: relative; }
.search-btn:hover { transform: translateY(-2px); box-shadow: var(--glow-neon); }
.search-btn.loading .btn-text { visibility: hidden; }
.search-btn.loading .btn-loader { position: absolute; top: 50%; left: 50%; transform: translate(-50%, -50%); width: 24px; height: 24px; border: 3px solid rgba(255, 255, 255, 0.3); border-top-color: white; border-radius: 50%; animation: spin 0.8s linear infinite; }

.search-suggestions { position: absolute; top: 100%; left: 0; right: 0; margin-top: 10px; background: var(--bg-secondary); border: 1px solid var(--border-glass); border-radius: var(--radius-lg); box-shadow: var(--shadow-lg); opacity: 0; visibility: hidden; transform: translateY(-10px); transition: var(--transition-normal); z-index: 50; }
.search-suggestions.active { opacity: 1; visibility: visible; transform: translateY(0); }
.suggestion-item { display: flex; align-items: center; gap: 15px; padding: 15px 20px; cursor: pointer; transition: var(--transition-fast); }
.suggestion-item:hover { background: var(--bg-glass); }

.format-buttons { display: flex; justify-content: center; gap: 15px; margin-top: 30px; flex-wrap: wrap; }
.format-btn { display: flex; align-items: center; gap: 8px; padding: 12px 24px; background: var(--bg-glass); border: 1px solid var(--border-glass); border-radius: var(--radius-full); color: var(--text-secondary); font-family: var(--font-primary); cursor: pointer; transition: var(--transition-normal); }
.format-btn:hover { background: var(--bg-tertiary); color: var(--text-primary); transform: translateY(-2px); }
.format-btn.active { background: var(--primary-gradient); border-color: transparent; color: white; box-shadow: var(--glow-primary); }

.results-section { padding: 60px 0; display: none; }
.results-section.active { display: block; }
.results-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 30px; flex-wrap: wrap; gap: 20px; }
.results-title { font-size: 1.5rem; font-weight: 600; }
.results-filters { display: flex; gap: 10px; }
.filter-btn { padding: 10px 20px; background: var(--bg-glass); border: 1px solid var(--border-glass); border-radius: var(--radius-full); color: var(--text-secondary); font-family: var(--font-primary); cursor: pointer; transition: var(--transition-fast); }
.filter-btn.active { background: var(--primary-gradient); border-color: transparent; color: white; }
.results-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(350px, 1fr)); gap: 20px; }