/* assets/css/style.css — Премиум версия для Vtube */

:root {
    --primary: #6366f1;
    --primary-dark: #4f46e5;
    --primary-light: #818cf8;
    --secondary: #ec4899;
    --dark: #0f172a;
    --dark-light: #1e293b;
    --text: #334155;
    --text-light: #64748b;
    --bg: #f8fafc;
    --card: #ffffff;
    --border: #e2e8f0;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(99, 102, 241, 0.2);
    --radius: 16px;
    --radius-sm: 12px;
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: 'Inter', 'Segoe UI', system-ui, -apple-system, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.6;
    min-height: 100vh;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    height: 400px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    opacity: 0.05;
    z-index: -1;
    border-radius: 0 0 50% 50%;
}

.container {
    max-width: 1280px;
    margin: 0 auto;
    padding: 0 24px;
}

/* ====================== HEADER ====================== */
header {
    background: linear-gradient(135deg, var(--dark) 0%, var(--dark-light) 100%);
    color: white;
    padding: 20px 0;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.12);
    position: sticky;
    top: 0;
    z-index: 1000;
    backdrop-filter: blur(10px);
}

header::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--primary));
    background-size: 200% 100%;
    animation: gradientShift 3s ease infinite;
}

@keyframes gradientShift {
    0%, 100% { background-position: 0% 50%; }
    50% { background-position: 100% 50%; }
}

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

header h1 {
    font-size: 32px;
    font-weight: 800;
    letter-spacing: -1px;
    background: linear-gradient(135deg, #fff 0%, #a5b4fc 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

header h1 a {
    color: inherit;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 12px;
}

header h1 a::before {
    content: '▶';
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    font-size: 28px;
}

header nav {
    display: flex;
    gap: 8px;
}

header nav a {
    color: #cbd5e0;
    text-decoration: none;
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 15px;
    transition: var(--transition);
    position: relative;
}

header nav a::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    width: 0;
    height: 2px;
    background: var(--primary-light);
    transform: translateX(-50%);
    transition: var(--transition);
}

header nav a:hover {
    color: white;
    background: rgba(255, 255, 255, 0.1);
}

header nav a:hover::before {
    width: 80%;
}

/* ====================== ОСНОВНОЙ КОНТЕНТ ====================== */
main {
    padding: 48px 0;
}

h1, h2 {
    color: var(--dark);
    margin-bottom: 32px;
}

h2 {
    font-size: 28px;
    font-weight: 700;
    position: relative;
    padding-bottom: 16px;
}

h2::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    width: 80px;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 2px;
}

/* ====================== КАРТОЧКИ ВИДЕО ====================== */
.videos {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 32px;
    margin-top: 32px;
}

.video-card {
    background: var(--card);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: 0 4px 20px var(--shadow);
    transition: var(--transition);
    border: 1px solid var(--border);
    position: relative;
}

.video-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    opacity: 0;
    transition: var(--transition);
    z-index: 1;
}

.video-card:hover {
    transform: translateY(-12px);
    box-shadow: 0 20px 40px var(--shadow-hover);
    border-color: var(--primary-light);
}

.video-card:hover::before {
    opacity: 0.03;
}

.video-card video {
    width: 100%;
    height: 200px;
    object-fit: cover;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: block;
    transition: var(--transition);
    position: relative;
    z-index: 2;
}

.video-card:hover video {
    transform: scale(1.05);
}

.video-card .info {
    padding: 20px;
    position: relative;
    z-index: 2;
}

.video-card h3 {
    font-size: 18px;
    line-height: 1.4;
    margin-bottom: 10px;
    color: var(--dark);
    font-weight: 700;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
    transition: var(--transition);
}

.video-card:hover h3 {
    color: var(--primary);
}

.video-card p {
    font-size: 14px;
    color: var(--text-light);
    display: flex;
    align-items: center;
    gap: 8px;
}

.video-card p::before {
    content: '👤';
    font-size: 16px;
}

/* ====================== ФОРМЫ ====================== */
form {
    background: var(--card);
    padding: 48px;
    border-radius: var(--radius);
    box-shadow: 0 20px 60px var(--shadow);
    max-width: 560px;
    margin: 48px auto;
    border: 1px solid var(--border);
    position: relative;
    overflow: hidden;
}

form::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 5px;
    background: linear-gradient(90deg, var(--primary), var(--secondary), var(--primary));
    background-size: 200% 100%;
    animation: gradientShift 3s ease infinite;
}

form label {
    display: block;
    margin-bottom: 8px;
    font-weight: 700;
    color: var(--dark);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

form input[type="text"],
form input[type="email"],
form input[type="password"],
form input[type="file"],
form textarea {
    width: 100%;
    padding: 14px 18px;
    border: 2px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 16px;
    transition: var(--transition);
    background: var(--bg);
    color: var(--text);
    font-family: inherit;
}

form input:focus,
form textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 4px rgba(99, 102, 241, 0.1);
    background: white;
}

form textarea {
    min-height: 130px;
    resize: vertical;
}

form input[type="file"] {
    padding: 12px;
    cursor: pointer;
}

form button {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: 16px 36px;
    border: none;
    border-radius: var(--radius-sm);
    font-size: 17px;
    font-weight: 700;
    cursor: pointer;
    width: 100%;
    margin-top: 16px;
    transition: var(--transition);
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 8px 24px rgba(99, 102, 241, 0.3);
}

form button:hover {
    transform: translateY(-3px);
    box-shadow: 0 12px 32px rgba(99, 102, 241, 0.4);
    background: linear-gradient(135deg, var(--primary-light), var(--primary));
}

form button:active {
    transform: translateY(-1px);
}

.form-group {
    margin-bottom: 24px;
}

/* ====================== СООБЩЕНИЯ ОБ ОШИБКАХ ====================== */
.error {
    background: linear-gradient(135deg, #fee2e2, #fecaca);
    color: #991b1b;
    padding: 16px 20px;
    border-radius: var(--radius-sm);
    border-left: 5px solid #ef4444;
    margin-bottom: 24px;
    font-weight: 600;
    box-shadow: 0 4px 12px rgba(239, 68, 68, 0.2);
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ====================== ПЛЕЕР ====================== */
.watch-video {
    background: var(--card);
    padding: 32px;
    border-radius: var(--radius);
    box-shadow: 0 20px 60px var(--shadow);
    margin-bottom: 40px;
    border: 1px solid var(--border);
}

.watch-video video {
    width: 100%;
    max-width: 1100px;
    border-radius: var(--radius);
    background: #000;
    box-shadow: 0 16px 48px rgba(0, 0, 0, 0.3);
    margin: 0 auto;
    display: block;
}

.watch-video h2 {
    margin-top: 24px;
    font-size: 26px;
}

.watch-video p {
    color: var(--text-light);
    margin-top: 12px;
    font-size: 15px;
}

/* ====================== FOOTER ====================== */
footer {
    background: var(--dark);
    color: var(--text-light);
    text-align: center;
    padding: 32px 0;
    margin-top: 80px;
}

footer p {
    font-size: 14px;
}

/* ====================== ЗАГРУЗКА ====================== */
.loading {
    display: inline-block;
    width: 24px;
    height: 24px;
    border: 3px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: white;
    animation: spin 0.8s linear infinite;
}

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

/* ====================== АДАПТИВ ====================== */
@media (max-width: 768px) {
    header .container {
        flex-direction: column;
        gap: 20px;
        text-align: center;
    }
    
    header nav {
        flex-wrap: wrap;
        justify-content: center;
    }
    
    header h1 {
        font-size: 26px;
    }
    
    .videos {
        grid-template-columns: 1fr;
        gap: 24px;
    }
    
    form {
        padding: 32px 24px;
        margin: 24px 16px;
    }
    
    h2 {
        font-size: 24px;
    }
    
    .watch-video {
        padding: 20px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0 16px;
    }
    
    header h1 {
        font-size: 22px;
    }
    
    header nav a {
        padding: 8px 14px;
        font-size: 14px;
    }
    
    form {
        padding: 24px 16px;
    }
}

/* ====================== ДОПОЛНИТЕЛЬНЫЕ ЭФФЕКТЫ ====================== */
.fade-in {
    animation: fadeIn 0.5s ease;
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}
/* Галочки верификации */
.verified-badge {
    width: 22px;
    height: 22px;
    vertical-align: middle;
    margin-left: 6px;
    filter: drop-shadow(0 1px 2px rgba(0,0,0,0.2));
}

.verified-badge.small {
    width: 18px;
    height: 18px;
}

.verified-badge.big {
    width: 28px;
    height: 28px;
}

/* Стили для автора */
.author {
    margin: 8px 0 4px;
    font-size: 15px;
    color: #475569;
}

.author a {
    color: #1e40af;
    text-decoration: none;
}

.author a:hover {
    text-decoration: underline;
}

/* Шапка канала */
.channel-header {
    text-align: center;
    margin: 40px 0 30px;
    padding: 20px;
    background: white;
    border-radius: 16px;
    box-shadow: 0 4px 15px rgba(0,0,0,0.08);
}

.channel-header h1 {
    font-size: 28px;
    margin-bottom: 8px;
}