/* ===================================================
   Media Server - Admin Dashboard CSS
   Full Mobile Responsive + Premium Dark Design
   =================================================== */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&display=swap');

/* ─── CSS Variables ─── */
:root {
    --bg-main: #060b14;
    --bg-card: #0e1625;
    --bg-sidebar: #090f1c;
    --bg-input: #151f30;
    --bg-hover: #1a2740;
    --border-color: #1c2d45;
    --border-light: rgba(255,255,255,0.06);
    --text-primary: #f1f5f9;
    --text-secondary: #64748b;
    --text-muted: #334155;
    --accent: #6366f1;
    --accent-hover: #4f46e5;
    --accent-glow: rgba(99,102,241,0.2);
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --radius: 10px;
    --radius-lg: 14px;
    --sidebar-width: 250px;
    --topbar-height: 64px;
    --transition: 0.2s ease;
    --font: 'Inter', system-ui, -apple-system, sans-serif;
}

/* ─── Reset ─── */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    font-family: var(--font);
}

html { scroll-behavior: smooth; }

body {
    background-color: var(--bg-main);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

/* ─── Scrollbar ─── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-main); }
::-webkit-scrollbar-thumb { background: var(--border-color); border-radius: 3px; }

/* ─── Admin Layout ─── */
.admin-wrapper {
    display: flex;
    width: 100%;
    min-height: 100vh;
}

/* ─── Sidebar ─── */
.sidebar {
    width: var(--sidebar-width);
    background: var(--bg-sidebar);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    z-index: 200;
    transition: transform var(--transition);
    overflow-y: auto;
}

.sidebar-header {
    padding: 22px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    gap: 12px;
}

.sidebar-header h2 {
    font-size: 17px;
    font-weight: 800;
    color: var(--text-primary);
    letter-spacing: -0.3px;
}

.sidebar-nav { padding: 16px 0; flex: 1; }

.nav-link {
    display: flex;
    align-items: center;
    gap: 11px;
    padding: 11px 20px;
    color: var(--text-secondary);
    text-decoration: none;
    font-size: 13.5px;
    font-weight: 500;
    transition: all var(--transition);
    border-left: 3px solid transparent;
    margin: 2px 0;
}

.nav-link:hover {
    color: var(--text-primary);
    background: rgba(99,102,241,0.08);
    border-left-color: rgba(99,102,241,0.4);
}

.nav-link.active {
    color: #ffffff;
    background: rgba(99,102,241,0.14);
    border-left-color: var(--accent);
    font-weight: 600;
}

.nav-link span { font-size: 16px; }

/* Sidebar Overlay (mobile) */
.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
    z-index: 199;
}

.sidebar-overlay.open { display: block; }

/* ─── Main Content ─── */
.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    margin-left: var(--sidebar-width);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ─── Topbar ─── */
.topbar {
    height: var(--topbar-height);
    background: var(--bg-sidebar);
    border-bottom: 1px solid var(--border-color);
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(12px);
}

/* Hamburger Menu Button (Hidden on desktop) */
.menu-toggle {
    display: none;
    background: none;
    border: none;
    color: var(--text-primary);
    cursor: pointer;
    padding: 8px;
    border-radius: 8px;
    transition: background var(--transition);
}
.menu-toggle:hover { background: var(--bg-hover); }
.menu-toggle svg { width: 22px; height: 22px; fill: currentColor; }

.topbar-title {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
}

.user-profile {
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 13px;
}

.avatar {
    width: 34px;
    height: 34px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--accent), #8b5cf6);
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 13px;
}

.user-details { display: flex; flex-direction: column; }
.user-details strong { font-size: 13px; }
.user-details small { font-size: 11px; color: var(--text-secondary); }

/* ─── Page Body ─── */
.page-body {
    padding: 24px;
    flex: 1;
}

.page-title {
    font-size: 20px;
    font-weight: 700;
    margin-bottom: 20px;
    letter-spacing: -0.3px;
}

/* ─── Stats Grid ─── */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 18px;
    display: flex;
    align-items: center;
    gap: 14px;
    transition: border-color var(--transition);
}
.stat-card:hover { border-color: var(--accent); }

.stat-icon {
    width: 44px;
    height: 44px;
    border-radius: 10px;
    background: var(--accent-glow);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 20px;
    flex-shrink: 0;
}

.stat-info h3 { font-size: 22px; font-weight: 700; }
.stat-info p { font-size: 12px; color: var(--text-secondary); margin-top: 2px; }

/* ─── Card Table ─── */
.card-table {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    overflow: hidden;
    margin-bottom: 24px;
}

.card-table-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 12px;
}

/* ─── Data Table (Responsive Wrapper) ─── */
.table-scroll-wrapper {
    width: 100%;
    overflow-x: auto;
    -webkit-overflow-scrolling: touch;
}

.data-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13.5px;
    min-width: 700px;
}

.data-table th,
.data-table td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
    white-space: nowrap;
}

.data-table th {
    background: rgba(6,11,20,0.8);
    color: var(--text-secondary);
    font-weight: 600;
    font-size: 12px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table tr:last-child td { border-bottom: none; }
.data-table tbody tr:hover { background: var(--bg-hover); }

/* ─── Badges ─── */
.badge {
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    display: inline-block;
}

.badge-success { background: rgba(16,185,129,0.15); color: var(--success); }
.badge-warning { background: rgba(245,158,11,0.15); color: var(--warning); }
.badge-danger  { background: rgba(239,68,68,0.15);  color: var(--danger); }

/* ─── Buttons ─── */
.btn {
    padding: 8px 16px;
    border-radius: 7px;
    font-size: 13px;
    font-weight: 600;
    border: 1px solid transparent;
    cursor: pointer;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 6px;
    transition: all var(--transition);
    white-space: nowrap;
}

.btn-primary {
    background: var(--accent);
    color: #ffffff;
    border-color: var(--accent);
}
.btn-primary:hover {
    background: var(--accent-hover);
    border-color: var(--accent-hover);
    box-shadow: 0 0 16px var(--accent-glow);
}

.btn-secondary {
    background: var(--bg-input);
    color: var(--text-primary);
    border-color: var(--border-color);
}
.btn-secondary:hover {
    background: var(--bg-hover);
    border-color: rgba(255,255,255,0.15);
}

/* ─── Form Row (2-col grid) ─── */
.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* ─── Form Groups ─── */
.form-group { margin-bottom: 18px; }

.form-group label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 7px;
    color: var(--text-primary);
}

.form-control {
    width: 100%;
    padding: 10px 13px;
    background: var(--bg-input);
    border: 1px solid var(--border-color);
    border-radius: 7px;
    color: var(--text-primary);
    font-size: 14px;
    outline: none;
    transition: border-color var(--transition), box-shadow var(--transition);
}

.form-control:focus {
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-control::placeholder { color: var(--text-secondary); }

textarea.form-control { resize: vertical; line-height: 1.5; }

select.form-control {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='%2364748b'%3E%3Cpath d='M7 10l5 5 5-5z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 10px center;
    background-size: 18px;
    padding-right: 36px;
    appearance: none;
}

/* ─── Alert Messages ─── */
.alert {
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 500;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.alert-danger  { background: rgba(239,68,68,0.12);  color: #f87171; border: 1px solid rgba(239,68,68,0.25); }
.alert-success { background: rgba(16,185,129,0.12); color: #34d399; border: 1px solid rgba(16,185,129,0.25); }

/* ─── Login Page ─── */
.login-body {
    background: var(--bg-main);
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    width: 100%;
    padding: 20px;
}

.login-card {
    background: var(--bg-card);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 36px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 25px 50px rgba(0,0,0,0.6);
}

.login-header { text-align: center; margin-bottom: 28px; }
.login-header h1 { font-size: 24px; font-weight: 800; }
.login-header p  { color: var(--text-secondary); font-size: 13px; margin-top: 5px; }

/* ─── Animations ─── */
@keyframes fadeInUp {
    from { opacity: 0; transform: translateY(12px); }
    to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

/* ─── Responsive Breakpoints ─── */

/* Tablet: 1024px */
@media (max-width: 1024px) {
    :root { --sidebar-width: 220px; }

    .page-body { padding: 20px; }

    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

/* Mobile: 768px */
@media (max-width: 768px) {
    /* Sidebar becomes slide-in drawer */
    .sidebar {
        transform: translateX(-100%);
        box-shadow: 4px 0 20px rgba(0,0,0,0.5);
    }

    .sidebar.mobile-open {
        transform: translateX(0);
    }

    /* Main content fills full width */
    .main-content {
        margin-left: 0;
    }

    /* Show hamburger button */
    .menu-toggle { display: flex; }

    /* Topbar adjustments */
    .topbar { padding: 0 16px; }
    .topbar-title { font-size: 13px; }

    /* Hide username on small screens */
    .user-details { display: none; }

    /* Page body */
    .page-body { padding: 16px; }
    .page-title { font-size: 17px; }

    /* Stats: 2 columns on tablet-ish, 1 column on small */
    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 12px;
    }

    /* Form row: stack to 1 col */
    .form-row {
        grid-template-columns: 1fr;
        gap: 0;
    }

    /* Card Table header: stack */
    .card-table-header { flex-direction: column; align-items: flex-start; }

    /* Table: horizontal scroll */
    .data-table th, .data-table td { padding: 10px 12px; }

    /* Buttons slightly smaller */
    .btn { padding: 7px 13px; font-size: 12px; }
}

/* Small Mobile: 480px */
@media (max-width: 480px) {
    .stats-grid { grid-template-columns: 1fr 1fr; gap: 10px; }
    .stat-card { padding: 12px; gap: 10px; }
    .stat-info h3 { font-size: 18px; }
    .stat-icon { width: 38px; height: 38px; font-size: 17px; }

    .page-body { padding: 12px; }

    .login-card { padding: 24px 18px; }
}

/* Very Small Mobile: 360px */
@media (max-width: 360px) {
    .stats-grid { grid-template-columns: 1fr; }
}