:root {
    --bg-primary: #0f1419;
    --bg-secondary: #1a1f29;
    --bg-tertiary: #232936;
    --bg-hover: #2a3441;
    --border-color: #394046;
    --border-accent: #9263e8;
    --text-primary: #ffffff;
    --text-secondary: #b8c5d6;
    --text-muted: #7d8590;
    --accent-purple: #8e5bea;
    --accent-light: #c9a4f1;
    --accent-orange: #f5a97f;
    --accent-red: #ed8796;
    --accent-mauve: #aa76e8;
    --success: #00d9a5;
    --warning: #f5a97f;
    --danger: #ed8796;
    --shadow: 0 4px 16px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.4);
    --border-radius: 12px;
}

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

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

.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 2rem;
}

/* Header */
.header {
    text-align: center;
    margin-bottom: 3rem;
    padding: 2rem;
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.header::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-light), var(--accent-mauve));
}

.header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
    background: linear-gradient(135deg, var(--accent-purple), var(--accent-light));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.header .status {
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: rgba(0, 217, 165, 0.1);
    border-radius: 50px;
    font-size: 0.9rem;
    color: var(--success);
    border: 1px solid rgba(0, 217, 165, 0.2);
}

.header .status.error {
    background: rgba(237, 135, 150, 0.1);
    color: var(--danger);
    border: 1px solid rgba(237, 135, 150, 0.2);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    animation: pulse 2s infinite;
}

.status.error .status-dot {
    background: var(--danger);
    animation: none;
}

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

/* Stats Cards Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.stat-card {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
    transition: all 0.3s ease;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: -100%;
    width: 100%;
    height: 100%;
    background: linear-gradient(90deg, transparent, rgba(180, 142, 247, 0.12), transparent);
    transition: left 0.5s;
}

.stat-card:hover::before {
    left: 100%;
}

.stat-card:hover {
    transform: translateY(-5px);
    border-color: var(--accent-purple);
    box-shadow: var(--shadow-lg);
}

.stat-card::after {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: var(--accent-purple);
}

.stat-card.green::after { background: var(--success); }
.stat-card.blue::after { background: #4da6ff; }
.stat-card.orange::after { background: var(--accent-orange); }
.stat-card.purple::after { background: var(--accent-mauve); }

.stat-card .icon {
    width: 45px;
    height: 45px;
    border-radius: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.3rem;
    margin-bottom: 1rem;
}

.stat-card.green .icon { background: rgba(0, 217, 165, 0.15); color: var(--success); }
.stat-card.blue .icon { background: rgba(77, 166, 255, 0.15); color: #4da6ff; }
.stat-card.orange .icon { background: rgba(245, 169, 127, 0.15); color: var(--accent-orange); }
.stat-card.purple .icon { background: rgba(170, 118, 232, 0.15); color: var(--accent-mauve); }
.stat-card .icon { background: rgba(142, 91, 234, 0.15); color: var(--accent-purple); }

.stat-card .label {
    font-size: 0.8rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.5rem;
    font-weight: 500;
}

.stat-card .value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Charts Section */
.charts-section {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 1rem;
    margin-bottom: 2rem;
}

.chart-card {
    background: var(--bg-secondary);
    padding: 1.5rem;
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
}

.chart-card h3 {
    margin-bottom: 1rem;
    font-size: 1.1rem;
    color: var(--text-secondary);
    font-weight: 600;
}

.chart-card.full-width {
    grid-column: 1 / -1;
}

/* Time Chart Controls */
.chart-controls {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    margin-bottom: 1.5rem;
    align-items: flex-start;
}

.control-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.control-group.range-group {
    flex: 1;
    min-width: 280px;
}

.control-group.date-group {
    min-width: 130px;
}

.control-group.filter-group {
    flex: 2;
    min-width: 250px;
}

.control-group.buttons-group {
    display: flex;
    flex-direction: row;
    flex-wrap: wrap;
    gap: 0.5rem;
    align-items: flex-end;
    margin-top: auto;
}

.control-group label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    font-weight: 500;
}

.control-group input,
.control-group select {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem 0.75rem;
    color: var(--text-primary);
    font-size: 0.9rem;
    outline: none;
    transition: border-color 0.2s ease;
}

.control-group input:focus,
.control-group select:focus {
    border-color: var(--accent-purple);
}

.control-group input[type="date"] {
    cursor: pointer;
}

.control-group input[type="date"]::-webkit-calendar-picker-indicator {
    filter: invert(1);
    cursor: pointer;
}

.range-presets {
    display: flex;
    gap: 0.5rem;
    flex-wrap: wrap;
}

.preset-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 6px;
    padding: 0.5rem 1rem;
    color: var(--text-secondary);
    font-size: 0.8rem;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
}

.preset-btn:hover {
    border-color: var(--accent-purple);
    color: var(--text-primary);
}

.preset-btn.active {
    background: var(--accent-purple);
    border-color: var(--accent-purple);
    color: white;
}

.user-filter-container {
    position: relative;
    min-width: 200px;
    flex: 2;
}

.user-filter-input {
    width: 100%;
}

.user-filter-dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    max-height: 250px;
    overflow-y: auto;
    z-index: 100;
    display: none;
    margin-top: 0.25rem;
    box-shadow: var(--shadow-lg);
}

.user-filter-dropdown.show {
    display: block;
}

.user-filter-option {
    padding: 0.6rem 0.75rem;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    transition: background 0.2s ease;
    font-size: 0.9rem;
}

.user-filter-option:hover {
    background: var(--bg-hover);
}

.user-filter-option.no-results {
    color: var(--text-muted);
    cursor: default;
    justify-content: center;
}

.user-filter-option.no-results:hover {
    background: transparent;
}

.user-filter-option img {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    flex-shrink: 0;
}

.selected-users {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
    max-height: 120px;
    overflow-y: auto;
}

.selected-user-tag {
    display: inline-flex;
    align-items: center;
    gap: 0.35rem;
    background: var(--bg-tertiary);
    padding: 0.3rem 0.5rem;
    border-radius: 6px;
    font-size: 0.8rem;
    border: 1px solid var(--border-color);
    transition: border-color 0.2s ease;
}

.selected-user-tag:hover {
    border-color: var(--accent-purple);
}

.selected-user-tag img {
    width: 20px;
    height: 20px;
    border-radius: 50%;
    flex-shrink: 0;
}

.selected-user-tag .user-tag-name {
    max-width: 100px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.selected-user-tag .remove-user {
    cursor: pointer;
    margin-left: 0.2rem;
    opacity: 0.7;
    font-size: 1.1rem;
    line-height: 1;
    padding: 0 0.1rem;
    border-radius: 3px;
    transition: all 0.2s ease;
}

.selected-user-tag .remove-user:hover {
    opacity: 1;
    color: var(--accent-red);
    background: rgba(237, 135, 150, 0.15);
}

.chart-stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1.5rem;
    margin-top: 1rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
}

.chart-stat {
    display: flex;
    flex-direction: column;
}

.chart-stat .stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 0.25rem;
}

.chart-stat .stat-value {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--accent-purple);
}

.chart-stat .stat-value.green {
    color: var(--success);
}

.chart-stat .stat-value.blue {
    color: #4da6ff;
}

/* Users Table */
.users-section {
    background: var(--bg-secondary);
    border-radius: var(--border-radius);
    box-shadow: var(--shadow);
    border: 1px solid var(--border-color);
    overflow: hidden;
}

.users-header {
    padding: 1.5rem;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 1rem;
}

.users-header h2 {
    font-size: 1.3rem;
    font-weight: 600;
}

.search-box {
    display: flex;
    align-items: center;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.5rem 1rem;
    gap: 0.5rem;
    transition: border-color 0.2s ease;
}

.search-box:focus-within {
    border-color: var(--accent-purple);
}

.search-box input {
    background: transparent;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-size: 0.9rem;
    width: 200px;
}

.search-box i {
    color: var(--text-muted);
}

.users-table-container {
    overflow-x: auto;
    max-height: 600px;
    overflow-y: auto;
}

.users-table {
    width: 100%;
    border-collapse: collapse;
}

.users-table th,
.users-table td {
    padding: 1rem;
    text-align: left;
    border-bottom: 1px solid var(--border-color);
}

.users-table th {
    background: var(--bg-tertiary);
    color: var(--text-muted);
    font-weight: 500;
    text-transform: uppercase;
    font-size: 0.75rem;
    letter-spacing: 0.5px;
    position: sticky;
    top: 0;
    z-index: 10;
}

.users-table tbody tr {
    transition: background 0.2s ease;
}

.users-table tbody tr:hover {
    background: var(--bg-hover);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.user-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    object-fit: cover;
    border: 2px solid var(--border-color);
}

.user-name {
    font-weight: 500;
}

.user-username {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.badge {
    padding: 0.25rem 0.75rem;
    border-radius: 50px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: capitalize;
}

.badge.admin { background: rgba(168, 85, 247, 0.2); color: #a855f7; }
.badge.whitelisted { background: rgba(0, 217, 165, 0.2); color: var(--success); }
.badge.user { background: rgba(77, 166, 255, 0.2); color: #4da6ff; }
.badge.banned { background: rgba(237, 135, 150, 0.2); color: var(--danger); }

.balance {
    font-weight: 600;
}

.balance.unlimited {
    color: var(--success);
}

.balance.banned {
    color: var(--danger);
}

.usage-bar {
    width: 100px;
    height: 6px;
    background: var(--bg-tertiary);
    border-radius: 3px;
    overflow: hidden;
}

.usage-bar-fill {
    height: 100%;
    border-radius: 3px;
    transition: width 0.3s ease;
}

.guild-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.guild-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
}

.guild-dot.in { background: var(--success); }
.guild-dot.out { background: var(--danger); }

/* Loading State */
.loading {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem;
    gap: 1rem;
}

.spinner {
    width: 50px;
    height: 50px;
    border: 4px solid var(--bg-tertiary);
    border-top-color: var(--accent-purple);
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

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

/* Responsive */
@media (max-width: 1024px) {
    .charts-section {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    }

    .control-group.range-group {
        min-width: 100%;
    }

    .control-group.filter-group {
        min-width: 200px;
        flex: 1;
    }
}

@media (max-width: 768px) {
    .container {
        padding: 1rem;
    }

    .header {
        padding: 1.5rem 1rem;
    }

    .header h1 {
        font-size: 1.6rem;
    }

    .charts-section {
        grid-template-columns: 1fr;
    }

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
        gap: 0.75rem;
    }

    .stat-card {
        padding: 1rem;
    }

    .stat-card .value {
        font-size: 1.4rem;
    }

    .stat-card .icon {
        width: 36px;
        height: 36px;
        font-size: 1rem;
    }

    .chart-card {
        padding: 1rem;
    }

    .chart-controls {
        gap: 0.75rem;
    }

    .control-group.range-group,
    .control-group.date-group,
    .control-group.filter-group {
        min-width: 100%;
        flex: 1 1 100%;
    }

    .control-group.buttons-group {
        width: 100%;
        justify-content: flex-start;
    }

    .range-presets {
        width: 100%;
    }

    .preset-btn {
        flex: 1;
        text-align: center;
        padding: 0.6rem 0.5rem;
        font-size: 0.8rem;
    }

    .user-filter-container {
        min-width: 100%;
    }

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

    .chart-stat .stat-value {
        font-size: 1.2rem;
    }

    .users-header {
        flex-direction: column;
        align-items: stretch;
        padding: 1rem;
    }

    .users-header h2 {
        font-size: 1.1rem;
    }

    .search-box {
        width: 100%;
    }

    .search-box input {
        width: 100%;
    }

    .users-table th,
    .users-table td {
        padding: 0.75rem 0.5rem;
        font-size: 0.85rem;
    }

    .user-avatar {
        width: 32px;
        height: 32px;
    }

    .usage-bar {
        width: 70px;
    }

    .selected-user-tag .user-tag-name {
        max-width: 80px;
    }
}

@media (max-width: 480px) {
    .container {
        padding: 0.75rem;
    }

    .header {
        padding: 1rem;
    }

    .header h1 {
        font-size: 1.4rem;
    }

    .stats-grid {
        grid-template-columns: 1fr 1fr;
        gap: 0.5rem;
    }

    .stat-card {
        padding: 0.75rem;
    }

    .stat-card .value {
        font-size: 1.2rem;
    }

    .stat-card .label {
        font-size: 0.7rem;
    }

    .stat-card .icon {
        width: 32px;
        height: 32px;
        font-size: 0.9rem;
        margin-bottom: 0.5rem;
    }

    .chart-card {
        padding: 0.75rem;
    }

    .chart-card h3 {
        font-size: 1rem;
    }

    .chart-stats {
        grid-template-columns: 1fr 1fr;
        gap: 0.75rem;
    }

    .chart-stat .stat-label {
        font-size: 0.65rem;
    }

    .chart-stat .stat-value {
        font-size: 1rem;
    }

    .preset-btn {
        font-size: 0.75rem;
        padding: 0.5rem 0.4rem;
    }

    .control-group.buttons-group .preset-btn {
        flex: 1;
        min-width: auto;
    }

    .users-section {
        border-radius: 8px;
    }

    .users-header {
        padding: 0.75rem;
    }

    .users-header h2 {
        font-size: 1rem;
    }

    .users-table {
        font-size: 0.75rem;
    }

    .users-table th,
    .users-table td {
        padding: 0.5rem 0.25rem;
    }

    .users-table th {
        font-size: 0.65rem;
    }

    .user-info {
        gap: 0.4rem;
    }

    .user-avatar {
        width: 26px;
        height: 26px;
    }

    .user-name {
        font-size: 0.8rem;
    }

    .user-username {
        font-size: 0.7rem;
    }

    .badge {
        padding: 0.15rem 0.4rem;
        font-size: 0.65rem;
    }

    .usage-bar {
        width: 50px;
    }

    .selected-users {
        max-height: 80px;
    }

    .selected-user-tag {
        font-size: 0.7rem;
        padding: 0.2rem 0.4rem;
    }

    .selected-user-tag img {
        width: 16px;
        height: 16px;
    }

    .selected-user-tag .user-tag-name {
        max-width: 60px;
    }

    .user-filter-option {
        padding: 0.5rem;
        font-size: 0.85rem;
    }

    .user-filter-option img {
        width: 24px;
        height: 24px;
    }
}

/* Sortable headers */
.users-table th.sortable {
    cursor: pointer;
    user-select: none;
}

.users-table th.sortable:hover {
    color: var(--text-primary);
}

.users-table th.sortable i {
    margin-left: 0.5rem;
    opacity: 0.5;
}

.users-table th.sortable.active i {
    opacity: 1;
    color: var(--accent-purple);
}

/* API Key Modal */
.api-key-modal {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(15, 20, 25, 0.95);
    backdrop-filter: blur(10px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 9999;
    padding: 1rem;
}

.api-key-modal.hidden {
    display: none;
}

.api-key-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 2rem;
    max-width: 500px;
    width: 100%;
    box-shadow: var(--shadow-lg);
    position: relative;
}

.api-key-content::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--accent-purple), var(--accent-light), var(--accent-mauve));
    border-radius: var(--border-radius) var(--border-radius) 0 0;
}

.api-key-header {
    margin-bottom: 1.5rem;
}

.api-key-header h2 {
    font-size: 1.5rem;
    margin-bottom: 0.5rem;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.api-key-header h2 i {
    color: var(--accent-purple);
}

.api-key-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.api-key-form {
    margin-bottom: 1rem;
}

.api-key-input-group {
    margin-bottom: 1rem;
}

.api-key-input-group label {
    display: block;
    margin-bottom: 0.5rem;
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.api-key-input-group input {
    width: 100%;
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem;
    color: var(--text-primary);
    font-size: 0.9rem;
    font-family: 'Courier New', monospace;
    outline: none;
    transition: border-color 0.2s ease;
}

.api-key-input-group input:focus {
    border-color: var(--accent-purple);
}

.api-key-input-group input::placeholder {
    color: var(--text-muted);
    font-family: 'Inter', sans-serif;
}

.api-key-error {
    color: var(--accent-red);
    font-size: 0.85rem;
    margin-top: 0.5rem;
    display: none;
}

.api-key-error.show {
    display: block;
}

.api-key-buttons {
    display: flex;
    gap: 0.75rem;
    justify-content: flex-end;
}

.api-key-btn {
    padding: 0.65rem 1.5rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s ease;
    border: none;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.api-key-btn-primary {
    background: var(--accent-purple);
    color: white;
}

.api-key-btn-primary:hover {
    background: var(--accent-light);
    transform: translateY(-2px);
}

.api-key-btn-primary:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.api-key-btn-secondary {
    background: var(--bg-tertiary);
    color: var(--text-secondary);
    border: 1px solid var(--border-color);
}

.api-key-btn-secondary:hover {
    border-color: var(--accent-purple);
    color: var(--text-primary);
}

.api-key-info {
    background: rgba(142, 91, 234, 0.1);
    border: 1px solid rgba(142, 91, 234, 0.2);
    border-radius: 8px;
    padding: 1rem;
    margin-top: 1rem;
}

.api-key-info p {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin: 0;
    line-height: 1.5;
}

.api-key-info i {
    color: var(--accent-purple);
    margin-right: 0.5rem;
}

.api-key-settings {
    position: fixed;
    top: 20px;
    right: 20px;
    z-index: 1000;
}

.api-key-settings-btn {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 0.6rem 1rem;
    color: var(--text-secondary);
    cursor: pointer;
    transition: all 0.2s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.85rem;
}

.api-key-settings-btn:hover {
    border-color: var(--accent-purple);
    color: var(--text-primary);
}

@media (max-width: 768px) {
    .api-key-content {
        padding: 1.5rem;
    }

    .api-key-header h2 {
        font-size: 1.3rem;
    }

    .api-key-buttons {
        flex-direction: column;
    }

    .api-key-btn {
        width: 100%;
        justify-content: center;
    }

    .api-key-settings {
        top: 10px;
        right: 10px;
    }

    .api-key-settings-btn {
        padding: 0.5rem 0.75rem;
        font-size: 0.8rem;
    }
}