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

:root {
    --bg: #0f0f1a;
    --bg2: #1a1a2e;
    --bg3: #252542;
    --bg4: #30305a;
    --fg: #e8e8f0;
    --dim: #7878a0;
    --accent: #00d4ff;
    --success: #00e676;
    --error: #ff4757;
    --warning: #ffc107;
    --border: #2a2a50;
    --radius: 10px;
}

body {
    font-family: 'Segoe UI', sans-serif;
    background: var(--bg);
    color: var(--fg);
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
}

/* ==================== AUTH ==================== */
.auth-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    padding: 20px;
    background: radial-gradient(ellipse at center, #111133 0%, var(--bg) 70%);
}

.auth-box {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 40px;
    width: 100%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.4);
}

.auth-box h1 {
    color: var(--accent);
    text-align: center;
    margin-bottom: 8px;
    font-size: 24px;
    letter-spacing: 1px;
}

.auth-box .subtitle {
    text-align: center;
    color: var(--dim);
    margin-bottom: 30px;
    font-size: 14px;
}

/* ==================== FORMS ==================== */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 13px;
    color: var(--dim);
    font-weight: 600;
}

.form-group input,
.form-group select {
    width: 100%;
    padding: 10px 14px;
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 6px;
    color: var(--fg);
    font-size: 14px;
    outline: none;
    transition: border-color 0.2s;
}

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

.form-group input:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.form-select {
    background: var(--bg3);
    color: var(--fg);
    border: 1px solid var(--border);
    padding: 8px 12px;
    border-radius: 6px;
    font-size: 14px;
    width: 100%;
    cursor: pointer;
}

.form-select option {
    background: var(--bg3);
    color: var(--fg);
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 16px;
}

/* ==================== BUTTONS ==================== */
.btn {
    display: inline-block;
    padding: 10px 24px;
    border: none;
    border-radius: 6px;
    font-size: 14px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.15s;
    text-decoration: none;
    text-align: center;
    line-height: 1.4;
}

.btn:hover { opacity: 0.85; transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn-primary {
    background: var(--accent);
    color: #000;
    width: 100%;
    padding: 12px;
    font-size: 15px;
}

.btn-success { background: var(--success); color: #000; }
.btn-danger { background: var(--error); color: #fff; }
.btn-warning { background: var(--warning); color: #000; }
.btn-accent { background: var(--accent); color: #000; }
.btn-outline {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--fg);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); }
.btn-sm { padding: 5px 12px; font-size: 12px; }

.auth-link {
    text-align: center;
    margin-top: 16px;
    font-size: 13px;
    color: var(--dim);
}

.auth-link a {
    color: var(--accent);
    text-decoration: none;
}

/* ==================== LAYOUT ==================== */
.layout {
    display: flex;
    min-height: 100vh;
}

.sidebar {
    width: 240px;
    background: var(--bg2);
    border-right: 1px solid var(--border);
    padding: 20px 0;
    position: fixed;
    height: 100vh;
    overflow-y: auto;
    z-index: 100;
}

.sidebar-logo {
    padding: 0 20px 20px;
    border-bottom: 1px solid var(--border);
    margin-bottom: 10px;
}

.sidebar-logo h2 {
    color: var(--accent);
    font-size: 18px;
}

.sidebar-logo p {
    color: var(--dim);
    font-size: 11px;
}

.sidebar-menu a {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px 20px;
    color: var(--dim);
    text-decoration: none;
    font-size: 14px;
    transition: all 0.15s;
    border-left: 3px solid transparent;
}

.sidebar-menu a:hover {
    color: var(--fg);
    background: var(--bg3);
}

.sidebar-menu a.active {
    color: var(--accent);
    background: rgba(0,212,255,0.06);
    border-left-color: var(--accent);
    font-weight: 600;
}

.sidebar-menu a .icon { font-size: 16px; width: 24px; text-align: center; }

.sidebar-user {
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    padding: 16px 20px;
    border-top: 1px solid var(--border);
    background: var(--bg2);
}

.sidebar-user p { font-size: 13px; }
.sidebar-user .name { color: var(--fg); font-weight: 600; }
.sidebar-user .role { color: var(--dim); font-size: 11px; margin-bottom: 6px; }
.sidebar-user a { color: var(--error); font-size: 12px; text-decoration: none; }
.sidebar-user a:hover { text-decoration: underline; }

.main-content {
    margin-left: 240px;
    padding: 24px 32px;
    flex: 1;
    min-width: 0;
}

/* ==================== CARDS ==================== */
.page-header {
    margin-bottom: 24px;
}

.page-header h1 {
    font-size: 22px;
    color: var(--fg);
}

.page-header p {
    color: var(--dim);
    font-size: 13px;
    margin-top: 4px;
}

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

.stat-card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 20px;
    text-align: center;
    transition: border-color 0.2s;
}

.stat-card:hover { border-color: var(--accent); }

.stat-card .number {
    font-size: 26px;
    font-weight: 700;
    color: var(--accent);
    font-family: 'Consolas', monospace;
}

.stat-card .label {
    font-size: 12px;
    color: var(--dim);
    margin-top: 4px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.stat-card.success .number { color: var(--success); }
.stat-card.error .number { color: var(--error); }
.stat-card.warning .number { color: var(--warning); }
.stat-card.info .number { color: var(--accent); }

.card {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    margin-bottom: 20px;
    overflow: hidden;
}

.card-header {
    padding: 14px 20px;
    border-bottom: 1px solid var(--border);
    font-weight: 600;
    font-size: 14px;
    color: var(--accent);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 10px;
}

.card-body { padding: 20px; }

/* ==================== SEARCH ==================== */
.search-box { display: flex; align-items: center; }

.search-input {
    background: var(--bg3);
    border: 1px solid var(--border);
    border-radius: 6px;
    padding: 6px 12px;
    color: var(--fg);
    font-size: 13px;
    outline: none;
    width: 260px;
    transition: border-color 0.2s;
}

.search-input:focus { border-color: var(--accent); }
.search-input::placeholder { color: var(--dim); }

/* ==================== TABLE ==================== */
.table-wrap { overflow-x: auto; }

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 13px;
}

th, td {
    padding: 10px 14px;
    text-align: left;
    border-bottom: 1px solid var(--border);
}

th {
    background: var(--bg3);
    color: var(--dim);
    font-weight: 600;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    white-space: nowrap;
}

tr:hover { background: rgba(0,212,255,0.03); }
tr:last-child td { border-bottom: none; }

.badge {
    display: inline-block;
    padding: 3px 10px;
    border-radius: 20px;
    font-size: 11px;
    font-weight: 600;
    white-space: nowrap;
}

.badge-success { background: rgba(0,230,118,0.15); color: var(--success); }
.badge-error { background: rgba(255,71,87,0.15); color: var(--error); }
.badge-warning { background: rgba(255,193,7,0.15); color: var(--warning); }
.badge-info { background: rgba(0,212,255,0.15); color: var(--accent); }

/* ==================== WALLET ==================== */
.wallet-card {
    background: linear-gradient(135deg, #1a1a4e, #0a1628);
    border: 1px solid var(--accent);
    border-radius: var(--radius);
    padding: 30px;
    margin-bottom: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    box-shadow: 0 4px 20px rgba(0,212,255,0.1);
}

.wallet-info h3 { color: var(--dim); font-size: 14px; margin-bottom: 4px; }
.wallet-info .amount {
    font-size: 32px;
    font-weight: 700;
    color: var(--accent);
    font-family: 'Consolas', monospace;
}
.wallet-info .amount span { font-size: 16px; color: var(--dim); }

.wallet-actions { display: flex; gap: 10px; }

/* ==================== DEPOSIT ==================== */
.deposit-container {
    max-width: 500px;
    margin: 40px auto;
}

.qr-box {
    background: #fff;
    padding: 20px;
    border-radius: var(--radius);
    text-align: center;
    margin: 20px 0;
}

.qr-box img { max-width: 220px; }

.deposit-info {
    background: var(--bg3);
    padding: 16px;
    border-radius: 8px;
    margin-top: 16px;
}

.deposit-info p {
    display: flex;
    justify-content: space-between;
    padding: 6px 0;
    font-size: 13px;
    border-bottom: 1px solid var(--border);
}

.deposit-info p:last-child { border: none; }
.deposit-info .label { color: var(--dim); }
.deposit-info .value { color: var(--fg); font-weight: 600; }

/* ==================== MODAL ==================== */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.6);
    z-index: 1000;
    justify-content: center;
    align-items: center;
    backdrop-filter: blur(2px);
}

.modal-overlay.active { display: flex; }

.modal {
    background: var(--bg2);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: 28px;
    width: 90%;
    max-width: 420px;
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
    animation: modalIn 0.2s ease-out;
}

@keyframes modalIn {
    from { opacity: 0; transform: scale(0.95) translateY(10px); }
    to { opacity: 1; transform: scale(1) translateY(0); }
}

.modal h3 { margin-bottom: 20px; color: var(--accent); font-size: 16px; }

.modal-actions { display: flex; gap: 10px; margin-top: 20px; justify-content: flex-end; }

/* ==================== PAGINATION ==================== */
.pagination {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 12px;
    padding: 16px 0 4px;
}

.page-info {
    color: var(--dim);
    font-size: 13px;
}

/* ==================== ALERTS ==================== */
.flash {
    padding: 12px 16px;
    border-radius: 6px;
    margin-bottom: 16px;
    font-size: 13px;
    animation: fadeIn 0.3s;
    box-shadow: 0 4px 12px rgba(0,0,0,0.3);
}

.flash-success { background: rgba(0,230,118,0.15); border: 1px solid var(--success); color: var(--success); }
.flash-error { background: rgba(255,71,87,0.15); border: 1px solid var(--error); color: var(--error); }
.flash-info { background: rgba(0,212,255,0.15); border: 1px solid var(--accent); color: var(--accent); }

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

/* ==================== API KEY ==================== */
.api-key-box {
    background: var(--bg3);
    padding: 12px 16px;
    border-radius: 6px;
    font-family: 'Consolas', monospace;
    font-size: 13px;
    word-break: break-all;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border: 1px solid var(--border);
}

.api-key-box .key { color: var(--success); }

/* ==================== RESPONSIVE ==================== */
@media (max-width: 768px) {
    .sidebar { display: none; }
    .main-content { margin-left: 0; padding: 16px; }
    .stats-grid { grid-template-columns: 1fr 1fr; }
    .wallet-card { flex-direction: column; text-align: center; gap: 16px; }
    .form-row { grid-template-columns: 1fr; }
    .search-input { width: 180px; }
}