:root {
    --bg-color: #060913;
    --card-bg: rgba(16, 20, 36, 0.6);
    --border-color: rgba(65, 105, 225, 0.2);
    --neon-blue: #00f3ff;
    --neon-pink: #ff00ea;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
}

body {
    background-color: var(--bg-color);
    color: var(--text-primary);
    font-family: 'Segoe UI', system-ui, sans-serif;
    margin: 0;
    padding: 0;
    min-height: 100vh;
    background-image: radial-gradient(circle at 15% 50%, rgba(0, 243, 255, 0.05), transparent 25%),
                      radial-gradient(circle at 85% 30%, rgba(255, 0, 234, 0.05), transparent 25%);
}

.glass-card {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    padding: 24px;
    position: relative;
    overflow: hidden;
}

.neon-text {
    color: var(--neon-blue);
    text-shadow: 0 0 10px rgba(0, 243, 255, 0.5);
}

/* Typography */
h2, h3 {
    margin-top: 0;
    font-weight: 600;
}

/* Forms & Inputs */
.input-group {
    margin-bottom: 16px;
}

.input-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    color: var(--text-secondary);
}

input[type="text"], input[type="password"], input[type="number"] {
    width: 100%;
    padding: 12px 16px;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    color: white;
    font-size: 14px;
    outline: none;
    transition: all 0.3s ease;
    box-sizing: border-box;
}

input:focus {
    border-color: var(--neon-blue);
    box-shadow: 0 0 10px rgba(0, 243, 255, 0.2);
}

/* Buttons */
.neon-button {
    width: 100%;
    padding: 12px;
    background: linear-gradient(90deg, #00f3ff, #00a2ff);
    color: #000;
    border: none;
    border-radius: 8px;
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s;
    text-transform: uppercase;
    letter-spacing: 1px;
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.4);
}

.neon-button:hover {
    box-shadow: 0 0 25px rgba(0, 243, 255, 0.6);
    transform: translateY(-1px);
}

.neon-button-small {
    padding: 8px 16px;
    background: rgba(0, 243, 255, 0.1);
    color: var(--neon-blue);
    border: 1px solid var(--neon-blue);
    border-radius: 6px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s;
    box-shadow: 0 0 8px rgba(0, 243, 255, 0.2);
}

.neon-button-small:hover {
    background: var(--neon-blue);
    color: #000;
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.4);
}

.neon-button-small.outline {
    background: transparent;
    border-color: var(--text-secondary);
    color: var(--text-secondary);
    box-shadow: none;
}
.neon-button-small.outline:hover {
    border-color: white;
    color: white;
}

/* Login Page */
.login-container {
    max-width: 360px;
    margin: 120px auto;
    text-align: center;
}

.glow {
    position: absolute;
    top: -50px;
    left: -50px;
    width: 150px;
    height: 150px;
    background: var(--neon-blue);
    filter: blur(80px);
    opacity: 0.3;
    z-index: -1;
}

/* Dashboard */
.topbar {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 16px 40px;
    background: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
}
.topbar h2 { margin: 0; }

.container {
    padding: 30px 40px;
    max-width: 1400px;
    margin: 0 auto;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.stat-card {
    text-align: center;
}
.stat-card h3 {
    color: var(--text-secondary);
    font-size: 14px;
    text-transform: uppercase;
    letter-spacing: 1px;
}
.stat-card .num {
    font-size: 36px;
    font-weight: 700;
}

.grid-2 {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 30px;
}

/* Tables */
.table-container {
    overflow-x: auto;
}
table {
    width: 100%;
    border-collapse: collapse;
}
th {
    text-align: left;
    padding: 12px;
    color: var(--text-secondary);
    font-size: 12px;
    text-transform: uppercase;
    border-bottom: 1px solid var(--border-color);
}
td {
    padding: 14px 12px;
    font-size: 14px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}
tr:hover td {
    background: rgba(255, 255, 255, 0.02);
}

.flex-between {
    display: flex;
    justify-content: space-between;
    align-items: center;
}
.mt-15 { margin-top: 15px; }

/* Modals */
.modal-overlay {
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.75);
    backdrop-filter: blur(5px);
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 1000;
    padding: 20px 10px;
    overflow-y: auto;
    box-sizing: border-box;
}
.modal-content {
    width: 480px;
    max-width: 95%;
    max-height: 88vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    box-sizing: border-box;
    margin: auto;
}
.modal-content::-webkit-scrollbar {
    width: 6px;
}
.modal-content::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.25);
    border-radius: 4px;
}
.modal-content::-webkit-scrollbar-thumb {
    background: rgba(0, 255, 255, 0.35);
    border-radius: 4px;
}
.modal-content::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 255, 255, 0.7);
}

/* ==========================================================================
   MOBILE & TABLET RESPONSIVE ADAPTATION (iOS & Android Touch-Friendly)
   ========================================================================== */

@media (max-width: 900px) {
    .container {
        padding: 20px 15px;
    }
    .topbar {
        padding: 12px 20px;
    }
}

@media (max-width: 768px) {
    .topbar {
        padding: 12px 14px;
        flex-wrap: wrap;
        gap: 10px;
    }
    .topbar h2 {
        font-size: 18px;
    }
    .lang-switcher {
        margin-right: 0;
        font-size: 13px;
    }

    .container {
        padding: 12px 8px;
    }

    /* Swipeable tabs on phones */
    .tabs {
        display: flex;
        gap: 8px;
        overflow-x: auto;
        white-space: nowrap;
        -webkit-overflow-scrolling: touch;
        scrollbar-width: none;
        padding-bottom: 6px;
        margin-bottom: 12px;
    }
    .tabs::-webkit-scrollbar {
        display: none;
    }
    .tab {
        flex-shrink: 0;
        padding: 6px 12px;
        font-size: 13px;
        border-radius: 6px;
        background: rgba(255, 255, 255, 0.03);
    }

    .glass-card {
        padding: 14px 12px;
        border-radius: 12px;
    }

    /* Top stats cards on phone */
    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 8px;
        margin-bottom: 16px;
    }
    .stat-card {
        padding: 10px 8px;
    }
    .stat-card h3 {
        font-size: 11px;
    }
    .stat-card .num {
        font-size: 22px;
    }

    /* Flex headers and toolbars */
    .flex-between {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }
    .flex-between > div {
        flex-wrap: wrap;
        width: 100%;
        gap: 8px !important;
    }

    #search-users, #search-channels, #filter-category, #search-categories {
        width: 100% !important;
        max-width: 100% !important;
        box-sizing: border-box;
    }

    /* Table horizontal swipe on mobile */
    .table-container {
        overflow-x: auto;
        -webkit-overflow-scrolling: touch;
        border-radius: 8px;
        border: 1px solid rgba(255, 255, 255, 0.05);
    }
    table {
        min-width: 640px;
    }
    th, td {
        padding: 8px 8px;
        font-size: 13px;
    }
    td:last-child {
        white-space: nowrap;
    }

    /* Modals mobile view */
    .modal-overlay {
        padding: 10px;
    }
    .modal-content {
        width: 95% !important;
        max-width: 95% !important;
        max-height: 88vh;
        overflow-y: auto;
        -webkit-overflow-scrolling: touch;
        padding: 16px 14px !important;
        margin: auto;
        border-radius: 12px;
        box-sizing: border-box;
    }

    /* Touch buttons */
    .neon-button-small {
        padding: 6px 12px;
        font-size: 12px;
        min-height: 32px;
        display: inline-flex;
        align-items: center;
        justify-content: center;
    }

    /* Form inputs avoid auto-zoom */
    input[type="text"], input[type="password"], input[type="number"], select {
        font-size: 14px;
        padding: 10px 12px;
    }

    /* Channels pagination bar on mobile */
    #channels-pagination-bar {
        flex-direction: column;
        gap: 8px;
        align-items: center;
        text-align: center;
    }
}