/* ============================================
   CORTENO IPTV PLAYER - Main Styles
   ============================================ */

:root {
    /* Color Palette */
    --bg-deep: #050a18;
    --bg-dark: #0a1628;
    --bg-medium: #0d1f3a;
    --bg-light: #142547;
    --bg-card: rgba(20, 37, 71, 0.6);
    --bg-card-hover: rgba(30, 50, 90, 0.7);
    
    --accent-primary: #3ba8ff;
    --accent-light: #5bc0ff;
    --accent-bright: #7dd0ff;
    --accent-glow: rgba(59, 168, 255, 0.4);
    --accent-soft: rgba(59, 168, 255, 0.15);
    
    --text-primary: #ffffff;
    --text-secondary: #a8c5e8;
    --text-muted: #6b87ad;
    --text-dim: #4a6585;
    
    --border-soft: rgba(91, 192, 255, 0.15);
    --border-medium: rgba(91, 192, 255, 0.3);
    --border-strong: rgba(91, 192, 255, 0.5);
    
    --success: #4ade80;
    --warning: #fbbf24;
    --danger: #ef4444;
    
    /* Shadows */
    --shadow-sm: 0 2px 8px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 16px 48px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 32px var(--accent-glow);
    --shadow-glow-strong: 0 0 64px var(--accent-glow);
    
    /* Fonts */
    --font-display: 'Outfit', -apple-system, sans-serif;
    --font-body: 'Outfit', -apple-system, sans-serif;
    --font-arabic: 'Tajawal', 'Outfit', sans-serif;
    
    /* Transitions */
    --trans-fast: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    --trans-medium: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --trans-slow: 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    
    /* Spacing */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 24px;
    --radius-full: 9999px;
}

/* ============================================
   RESET & BASE
   ============================================ */

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

html {
    scroll-behavior: smooth;
    -webkit-text-size-adjust: 100%;
}

body {
    font-family: var(--font-body);
    background: var(--bg-deep);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    position: relative;
}

body[dir="rtl"] {
    font-family: var(--font-arabic);
}

button {
    font-family: inherit;
    cursor: pointer;
    border: none;
    background: none;
    color: inherit;
}

input, select, textarea {
    font-family: inherit;
    color: inherit;
    border: none;
    outline: none;
    background: none;
}

img {
    max-width: 100%;
    display: block;
}

/* ============================================
   ANIMATED BACKGROUND
   ============================================ */

.bg-stars {
    position: fixed;
    inset: 0;
    z-index: 0;
    pointer-events: none;
    background: 
        radial-gradient(ellipse at top right, rgba(59, 168, 255, 0.15) 0%, transparent 50%),
        radial-gradient(ellipse at bottom left, rgba(91, 192, 255, 0.1) 0%, transparent 50%),
        linear-gradient(180deg, var(--bg-deep) 0%, var(--bg-dark) 100%);
}

.bg-stars::before,
.bg-stars::after {
    content: '';
    position: absolute;
    inset: 0;
    background-image: 
        radial-gradient(2px 2px at 20% 30%, rgba(91, 192, 255, 0.8), transparent),
        radial-gradient(1px 1px at 60% 70%, rgba(125, 208, 255, 0.6), transparent),
        radial-gradient(1px 1px at 80% 20%, rgba(91, 192, 255, 0.7), transparent),
        radial-gradient(2px 2px at 30% 80%, rgba(59, 168, 255, 0.5), transparent),
        radial-gradient(1px 1px at 50% 50%, rgba(125, 208, 255, 0.6), transparent),
        radial-gradient(1px 1px at 90% 60%, rgba(91, 192, 255, 0.7), transparent),
        radial-gradient(2px 2px at 10% 90%, rgba(59, 168, 255, 0.4), transparent);
    background-size: 1200px 800px, 1000px 700px, 800px 600px, 1100px 900px, 900px 800px, 1300px 700px, 1000px 1000px;
    animation: twinkle 8s ease-in-out infinite alternate;
}

.bg-stars::after {
    background-image: 
        radial-gradient(1px 1px at 15% 50%, rgba(125, 208, 255, 0.8), transparent),
        radial-gradient(1px 1px at 70% 35%, rgba(91, 192, 255, 0.6), transparent),
        radial-gradient(2px 2px at 40% 15%, rgba(59, 168, 255, 0.7), transparent),
        radial-gradient(1px 1px at 85% 75%, rgba(125, 208, 255, 0.5), transparent);
    background-size: 800px 600px, 700px 500px, 900px 700px, 1000px 800px;
    animation: twinkle 12s ease-in-out infinite alternate-reverse;
}

@keyframes twinkle {
    0%, 100% { opacity: 0.5; }
    50% { opacity: 1; }
}

.bg-glow {
    position: fixed;
    inset: 0;
    z-index: 1;
    pointer-events: none;
    background: 
        radial-gradient(circle at 15% 50%, rgba(59, 168, 255, 0.08) 0%, transparent 30%),
        radial-gradient(circle at 85% 30%, rgba(91, 192, 255, 0.06) 0%, transparent 35%);
}

/* ============================================
   LOADING SCREEN
   ============================================ */

.loading-screen {
    position: fixed;
    inset: 0;
    z-index: 9999;
    background: var(--bg-deep);
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 32px;
    transition: opacity 0.5s ease, visibility 0.5s ease;
}

.loading-screen.hidden {
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
}

.loading-logo {
    width: 100px;
    height: 100px;
    border-radius: 50%;
    overflow: hidden;
    box-shadow: var(--shadow-glow-strong);
    animation: pulse 2s ease-in-out infinite;
}

.loading-logo img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

@keyframes pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.05); }
}

.loading-spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--border-soft);
    border-top-color: var(--accent-light);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

.loading-text {
    color: var(--text-secondary);
    font-size: 14px;
    letter-spacing: 2px;
    text-transform: uppercase;
}

/* ============================================
   COMMON COMPONENTS
   ============================================ */

.btn-primary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 14px 28px;
    background: linear-gradient(135deg, var(--accent-primary) 0%, var(--accent-light) 100%);
    color: var(--text-primary);
    font-size: 15px;
    font-weight: 600;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--trans-medium);
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 4px 16px var(--accent-glow), inset 0 1px 0 rgba(255, 255, 255, 0.2);
    position: relative;
    overflow: hidden;
    width: 100%;
}

.btn-primary::before {
    content: '';
    position: absolute;
    inset: 0;
    background: linear-gradient(135deg, var(--accent-light) 0%, var(--accent-bright) 100%);
    opacity: 0;
    transition: opacity var(--trans-medium);
}

.btn-primary:hover::before { opacity: 1; }
.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px var(--accent-glow), inset 0 1px 0 rgba(255, 255, 255, 0.3);
}
.btn-primary:active { transform: translateY(0); }

.btn-primary svg {
    width: 18px;
    height: 18px;
    position: relative;
    z-index: 1;
}

.btn-primary span {
    position: relative;
    z-index: 1;
}

.btn-secondary {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    background: var(--bg-light);
    color: var(--text-primary);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-md);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: all var(--trans-fast);
}

.btn-secondary:hover {
    background: var(--bg-card-hover);
    border-color: var(--accent-primary);
}

.btn-secondary.danger {
    border-color: rgba(239, 68, 68, 0.3);
    color: var(--danger);
}

.btn-secondary.danger:hover {
    background: rgba(239, 68, 68, 0.1);
    border-color: var(--danger);
}

/* ============================================
   TOAST
   ============================================ */

.toast {
    position: fixed;
    bottom: 30px;
    left: 50%;
    transform: translateX(-50%) translateY(100px);
    background: var(--bg-light);
    color: var(--text-primary);
    padding: 14px 24px;
    border-radius: var(--radius-md);
    border: 1px solid var(--border-medium);
    box-shadow: var(--shadow-lg);
    z-index: 10000;
    opacity: 0;
    transition: all var(--trans-medium);
    max-width: 90%;
    text-align: center;
    font-size: 14px;
    pointer-events: none;
}

.toast.show {
    opacity: 1;
    transform: translateX(-50%) translateY(0);
}

.toast.success { border-color: var(--success); }
.toast.error { border-color: var(--danger); }
.toast.warning { border-color: var(--warning); }

/* ============================================
   LOADERS
   ============================================ */

.loader {
    width: 40px;
    height: 40px;
    border: 3px solid var(--border-soft);
    border-top-color: var(--accent-light);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* ============================================
   SCROLLBAR
   ============================================ */

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--bg-light);
    border-radius: var(--radius-full);
}

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

/* ============================================
   UTILITIES
   ============================================ */

.hidden { display: none !important; }

[dir="rtl"] .header-left .header-logo { flex-direction: row-reverse; }
[dir="rtl"] .input-icon { left: auto; right: 16px; }
[dir="rtl"] .input-wrapper input { padding-left: 16px; padding-right: 50px; }
[dir="rtl"] .toggle-pwd { right: auto; left: 12px; }
[dir="rtl"] .browser-search input { padding-left: 16px; padding-right: 44px; }
[dir="rtl"] .browser-search svg { left: auto; right: 14px; }
[dir="rtl"] .back-btn svg { transform: scaleX(-1); }