@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

:root {
    --bg: #ffffff;
    --bg-card: #f8fafc;
    --bg-input: #ffffff;
    --border: #e2e8f0;
    --border-focus: #6366f1;
    --text: #0f172a;
    --text-muted: #64748b;
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --danger: #ef4444;
    --radius: 10px;
    --shadow-sm: 0 1px 3px rgba(0,0,0,0.06), 0 1px 2px rgba(0,0,0,0.04);
    --shadow: 0 4px 12px rgba(0,0,0,0.08);
}

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

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    line-height: 1.5;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent-hover); }

/* Nav */
.nav {
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 0 1.5rem;
    display: flex;
    align-items: center;
    height: 56px;
    gap: 2rem;
}

.nav-brand {
    font-weight: 700;
    font-size: 1.1rem;
    color: var(--accent);
    letter-spacing: -0.5px;
}

.nav-links {
    display: flex;
    gap: 1.5rem;
    margin-left: auto;
}

.nav-links a {
    color: var(--text-muted);
    font-size: 0.875rem;
    font-weight: 500;
    transition: color 0.15s;
}

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

/* Layout */
.container {
    max-width: 960px;
    margin: 0 auto;
    padding: 2rem 1.5rem;
}

/* Login */
.login-wrap {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background: #f1f5f9;
}

.login-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 2.5rem;
    width: 100%;
    max-width: 380px;
}

.login-card h1 {
    text-align: center;
    font-size: 1.5rem;
    margin-bottom: 0.25rem;
    color: var(--accent);
    font-weight: 700;
}

.login-card .subtitle {
    text-align: center;
    color: var(--text-muted);
    font-size: 0.85rem;
    margin-bottom: 1.75rem;
}

/* Forms */
.form-group {
    margin-bottom: 1rem;
}

.form-group label {
    display: block;
    font-size: 0.75rem;
    color: var(--text-muted);
    margin-bottom: 0.35rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.form-group input {
    width: 100%;
    padding: 0.65rem 0.85rem;
    background: var(--bg-input);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--text);
    font-size: 0.95rem;
    font-family: inherit;
    outline: none;
    transition: border-color 0.15s, box-shadow 0.15s;
}

.form-group input:focus {
    border-color: var(--border-focus);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.1);
}

.btn {
    display: inline-block;
    padding: 0.65rem 1.5rem;
    background: var(--accent);
    color: #ffffff;
    border: none;
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.15s, box-shadow 0.15s;
    width: 100%;
    text-align: center;
}

.btn:hover {
    background: var(--accent-hover);
    box-shadow: 0 2px 8px rgba(99, 102, 241, 0.3);
}

.error-msg {
    background: #fef2f2;
    border: 1px solid #fecaca;
    color: var(--danger);
    padding: 0.5rem 0.75rem;
    border-radius: 6px;
    font-size: 0.85rem;
    margin-bottom: 1rem;
}

/* Cards grid */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1.25rem;
}

.card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 1.25rem;
    box-shadow: var(--shadow-sm);
    transition: border-color 0.15s, box-shadow 0.15s, transform 0.15s;
    display: flex;
    flex-direction: column;
}

.card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow);
    transform: translateY(-1px);
}

.card h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--text);
}

.card p {
    color: var(--text-muted);
    font-size: 0.85rem;
    flex: 1;
}

.card-meta {
    display: flex;
    justify-content: space-between;
    margin-top: 0.75rem;
    font-size: 0.78rem;
    color: var(--text-muted);
}

.card-meta .count {
    color: var(--accent);
    font-weight: 600;
}

/* Page titles */
.page-title {
    font-size: 1.4rem;
    margin-bottom: 1.5rem;
    font-weight: 700;
    color: var(--text);
}

/* Playlist detail */
.player-wrap {
    position: relative;
    padding-bottom: 56.25%;
    height: 0;
    overflow: hidden;
    border-radius: var(--radius);
    background: #0f172a;
    margin-bottom: 1.5rem;
    box-shadow: var(--shadow);
}

.player-wrap iframe {
    position: absolute;
    top: 0; left: 0;
    width: 100%; height: 100%;
    border: none;
}

.video-list {
    list-style: none;
}

.video-item {
    padding: 0.75rem 1rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    margin-bottom: 0.5rem;
    cursor: pointer;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: border-color 0.15s, background 0.15s;
    background: var(--bg);
}

.video-item:hover, .video-item.active {
    border-color: var(--accent);
    background: #f5f3ff;
}

.video-item .title {
    font-size: 0.9rem;
    font-weight: 500;
}

.video-item .duration {
    color: var(--text-muted);
    font-size: 0.8rem;
    white-space: nowrap;
    margin-left: 1rem;
}

/* Profile */
.profile-card {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow-sm);
    padding: 2rem;
    max-width: 420px;
}

.profile-card .field {
    margin-bottom: 1rem;
}

.profile-card .field-label {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--text-muted);
    font-weight: 500;
    margin-bottom: 0.2rem;
}

.profile-card .field-value {
    font-size: 1rem;
    font-weight: 500;
    color: var(--text);
}

/* Playlist description */
.playlist-desc {
    color: var(--text-muted);
    font-size: 0.9rem;
    margin-bottom: 1.25rem;
}

/* Expires badge */
.expires-badge {
    display: inline-block;
    font-size: 0.75rem;
    font-weight: 500;
    padding: 0.2rem 0.6rem;
    border-radius: 20px;
    background: #ede9fe;
    color: var(--accent);
    margin-bottom: 1rem;
}

/* Back link */
.back-link {
    display: inline-flex;
    align-items: center;
    gap: 0.25rem;
    margin-bottom: 1rem;
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
}

.back-link:hover {
    color: var(--text);
}

/* HTMX loading indicator */
.htmx-indicator {
    opacity: 0;
    transition: opacity 200ms;
}
.htmx-request .htmx-indicator,
.htmx-request.htmx-indicator {
    opacity: 1;
}

/* Responsive */
@media (max-width: 600px) {
    .container { padding: 1rem; }
    .grid { grid-template-columns: 1fr; }
    .nav { padding: 0 1rem; gap: 1rem; }
    .login-card { padding: 1.75rem; margin: 1rem; }
}