:root {
    /* Color Palette */
    --bg-color: #0d1117;
    --panel-bg: rgba(22, 27, 34, 0.6);
    --panel-border: rgba(255, 255, 255, 0.08);
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --accent-color: #58a6ff;
    --accent-hover: #3182ce;
    --danger: #f85149;
    --success: #3fb950;
    --warning: #d29922;

    /* Gradients */
    --grad-1: linear-gradient(135deg, #1f618d, #2980b9);
    --grad-2: linear-gradient(135deg, #27ae60, #2ecc71);
    --grad-3: linear-gradient(135deg, #c0392b, #e74c3c);

    /* Shadows & Effects */
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.37);
    --glass-blur: blur(12px);
    --transition: all 0.3s cubic-bezier(0.25, 0.8, 0.25, 1);
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Outfit', sans-serif;
}

body.dark-theme {
    background-color: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    /* Soft glowing background blobs */
    background-image: 
        radial-gradient(circle at 15% 50%, rgba(88, 166, 255, 0.1), transparent 25%),
        radial-gradient(circle at 85% 30%, rgba(138, 43, 226, 0.1), transparent 25%);
}

.screen {
    display: none;
    min-height: 100vh;
    opacity: 0;
    transition: opacity 0.5s ease;
}

.screen.active {
    display: flex;
    opacity: 1;
}

/* Glassmorphism Panels */
.glass-panel {
    background: var(--panel-bg);
    backdrop-filter: var(--glass-blur);
    -webkit-backdrop-filter: var(--glass-blur);
    border: 1px solid var(--panel-border);
    border-radius: 16px;
    box-shadow: var(--glass-shadow);
}

/* Typography */
h1, h2, h3 { font-weight: 600; }
.subtitle { color: var(--text-secondary); margin-bottom: 2rem; font-size: 0.95rem; }

/* Buttons */
.btn {
    padding: 12px 24px;
    border-radius: 8px;
    border: none;
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: var(--transition);
    font-size: 1rem;
    width: 100%;
}

.btn:active { transform: scale(0.98); }

.primary-btn {
    background: var(--accent-color);
    color: #fff;
    box-shadow: 0 4px 14px 0 rgba(88, 166, 255, 0.39);
}

.primary-btn:hover {
    background: var(--accent-hover);
    box-shadow: 0 6px 20px rgba(88, 166, 255, 0.4);
}

.secondary-btn {
    background: transparent;
    color: var(--text-primary);
    border: 1px solid var(--panel-border);
}

.secondary-btn:hover {
    background: rgba(255, 255, 255, 0.05);
}

.btn-blue {
    background: var(--grad-1);
    color: #fff;
    box-shadow: 0 4px 14px 0 rgba(31, 97, 141, 0.4);
}
.btn-blue:hover { opacity: 0.9; transform: translateY(-2px); }

.btn-green {
    background: var(--grad-2);
    color: #fff;
    box-shadow: 0 4px 14px 0 rgba(39, 174, 96, 0.4);
}
.btn-green:hover { opacity: 0.9; transform: translateY(-2px); }

.btn-cyan {
    background: var(--accent-color);
    color: #fff;
    box-shadow: 0 4px 14px 0 rgba(88, 166, 255, 0.4);
}
.btn-cyan:hover { background: var(--accent-hover); transform: translateY(-2px); }

/* Inputs */
.input-group {
    position: relative;
    margin-bottom: 1.5rem;
    width: 100%;
}

.input-group i {
    position: absolute;
    left: 16px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-secondary);
}

.input-group input {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    padding: 12px 16px 12px 42px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
    outline: none;
}

.input-group input:focus, .input-group select:focus {
    border-color: var(--accent-color);
    box-shadow: 0 0 0 2px rgba(88, 166, 255, 0.2);
}

.input-group select {
    width: 100%;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    padding: 12px 16px 12px 42px;
    color: var(--text-primary);
    font-size: 1rem;
    transition: var(--transition);
    outline: none;
    appearance: none;
    cursor: pointer;
}

.input-group select option {
    background: #1c2128;
    color: var(--text-primary);
}

/* --- LOGIN SCREEN --- */
#login-screen {
    align-items: center;
    justify-content: center;
}

.login-box {
    width: 100%;
    max-width: 420px;
    padding: 3rem 2.5rem;
    text-align: center;
}

.login-box .logo {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 12px;
    font-size: 1.5rem;
    margin-bottom: 10px;
    color: var(--accent-color);
}

.divider {
    display: flex;
    align-items: center;
    text-align: center;
    color: var(--text-secondary);
    margin: 1.5rem 0;
    font-size: 0.85rem;
}

.divider::before, .divider::after {
    content: '';
    flex: 1;
    border-bottom: 1px solid var(--panel-border);
}
.divider::before { margin-right: .5em; }
.divider::after { margin-left: .5em; }

.error-msg {
    color: var(--danger);
    font-size: 0.9rem;
    margin-top: 1rem;
    min-height: 20px;
}

/* --- DASHBOARD SCREEN --- */
.sidebar {
    width: 260px;
    padding: 2rem 0;
    display: flex;
    flex-direction: column;
    border-radius: 0;
    border-right: 1px solid var(--panel-border);
}

.sidebar .logo {
    padding: 0 2rem 2rem;
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 1.3rem;
    color: var(--accent-color);
    border-bottom: 1px solid var(--panel-border);
}

.nav-links {
    list-style: none;
    margin-top: 2rem;
    flex: 1;
}

.nav-links li {
    padding: 1rem 2rem;
    display: flex;
    align-items: center;
    gap: 12px;
    color: var(--text-secondary);
    cursor: pointer;
    transition: var(--transition);
    border-left: 3px solid transparent;
}

.nav-links li:hover, .nav-links li.active {
    color: var(--text-primary);
    background: rgba(255, 255, 255, 0.03);
}

.nav-links li.active {
    border-left-color: var(--accent-color);
}

.user-info {
    padding: 1.5rem 2rem 0;
    border-top: 1px solid var(--panel-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.user-info .details {
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

.user-info .details span {
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 130px;
}

.user-info .avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.1);
    display: flex;
    align-items: center;
    justify-content: center;
}

#logout-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.1rem;
    transition: var(--transition);
}

#logout-btn:hover { color: var(--danger); }

/* Main Content */
.content {
    flex: 1;
    padding: 2.5rem;
    overflow-y: auto;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2.5rem;
}

.status-indicator {
    display: flex;
    align-items: center;
    gap: 8px;
    background: var(--panel-bg);
    padding: 8px 16px;
    border-radius: 20px;
    border: 1px solid var(--panel-border);
    font-size: 0.9rem;
}
/* Tables */
.data-table { width: 100%; border-collapse: collapse; margin-top: 1rem; }
.data-table th, .data-table td { text-align: left; padding: 12px 15px; border-bottom: 1px solid var(--panel-border); font-size: 0.95rem; vertical-align: middle; }
.data-table th { color: var(--text-secondary); font-weight: 500; font-size: 0.9rem; }
.data-table tbody tr { transition: var(--transition); }
.data-table tbody tr:hover { background: rgba(255, 255, 255, 0.03); }
.badge { display: inline-block; padding: 4px 8px; border-radius: 12px; font-size: 0.8rem; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.badge.authorized { background: rgba(63, 185, 80, 0.15); color: #3fb950; border: 1px solid rgba(63, 185, 80, 0.3); }
.badge.unauthorized { background: rgba(248, 81, 73, 0.15); color: #f85149; border: 1px solid rgba(248, 81, 73, 0.3); }

.badge.online-status { background: rgba(63, 185, 80, 0.1); color: #3fb950; font-size: 10px; padding: 2px 8px; }
.badge.offline-status { background: rgba(139, 148, 158, 0.1); color: #8b949e; font-size: 10px; padding: 2px 8px; }
.btn-sm { padding: 6px 12px; font-size: 0.85rem; }
.actions-cell { display: flex; gap: 8px; align-items: center; justify-content: flex-end; }

/* Consistent Action Buttons */
.btn-action {
    width: 34px;
    height: 34px;
    padding: 0;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    border: 1px solid transparent;
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-secondary);
}

.btn-action:hover {
    transform: translateY(-2px);
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.btn-action.btn-info {
    background: rgba(88, 166, 255, 0.1);
    color: var(--accent-color);
    border-color: rgba(88, 166, 255, 0.2);
}

.btn-action.btn-info:hover {
    background: var(--accent-color);
    color: #fff;
    box-shadow: 0 4px 12px rgba(88, 166, 255, 0.3);
}

.btn-action.btn-danger {
    background: rgba(248, 81, 73, 0.1);
    color: var(--danger);
    border-color: rgba(248, 81, 73, 0.2);
}

.btn-action.btn-danger:hover {
    background: var(--danger);
    color: #fff;
    box-shadow: 0 4px 12px rgba(248, 81, 73, 0.3);
}

.btn-action.btn-success {
    background: rgba(63, 185, 80, 0.1);
    color: var(--success);
    border-color: rgba(63, 185, 80, 0.2);
}

.btn-action.btn-success:hover {
    background: var(--success);
    color: #fff;
    box-shadow: 0 4px 12px rgba(63, 185, 80, 0.3);
}

.btn-action.btn-warning {
    background: rgba(210, 153, 34, 0.1);
    color: var(--warning);
    border-color: rgba(210, 153, 34, 0.2);
}

.btn-action.btn-warning:hover {
    background: var(--warning);
    color: #fff;
    box-shadow: 0 4px 12px rgba(210, 153, 34, 0.3);
}
.btn-action.btn-white {
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-primary);
    border-color: rgba(255, 255, 255, 0.1);
}

.btn-action.btn-white:hover {
    background: rgba(255, 255, 255, 0.15);
    color: #fff;
    box-shadow: 0 4px 12px rgba(255, 255, 255, 0.1);
}

.dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
}

.online .dot { background: var(--success); box-shadow: 0 0 10px var(--success); }

/* Responsive Design */
@media screen and (max-width: 992px) {
    #dashboard-screen {
        flex-direction: column;
    }

    .sidebar {
        width: 100%;
        border-right: none;
        border-bottom: 1px solid var(--panel-border);
        padding: 1rem 0;
        position: sticky;
        top: 0;
        z-index: 1000;
        background: var(--bg-color);
        backdrop-filter: none !important;
        -webkit-backdrop-filter: none !important;
    }

    .sidebar .logo {
        padding: 0 1rem 1rem;
        justify-content: center;
    }

    .nav-links {
        display: flex;
        overflow-x: auto;
        margin-top: 1rem;
        padding-bottom: 0.5rem;
    }

    .nav-links li {
        padding: 0.8rem 1.2rem;
        white-space: nowrap;
        border-left: none !important;
        border-bottom: 3px solid transparent;
    }

    .nav-links li.active {
        border-bottom-color: var(--accent-color);
    }

    /* Fixed Bottom Logout Bar for Mobile */
    .user-info {
        position: fixed;
        bottom: 0;
        left: 0;
        width: 100%;
        background: var(--panel-bg);
        backdrop-filter: var(--glass-blur);
        -webkit-backdrop-filter: var(--glass-blur);
        border-top: 1px solid var(--panel-border);
        padding: 10px 20px;
        z-index: 1100;
        flex-direction: row !important;
        justify-content: space-between !important;
        box-shadow: 0 -4px 20px rgba(0,0,0,0.5);
    }
    
    .user-info .details {
        text-align: left;
    }

    .content {
        padding: 1.5rem 1rem 100px; /* Space for bottom bar */
    }

    .dashboard-grid, .stats-grid {
        grid-template-columns: 1fr !important;
        display: flex;
        flex-direction: column;
    }
    
    .dashboard-grid .side-panel {
        order: -1; /* Ensure Quick Actions are above the log */
    }

    .table-container {
        overflow-x: auto;
        padding: 1rem;
    }

    .data-table {
        min-width: 600px;
    }

    header {
        flex-direction: column;
        align-items: flex-start;
        gap: 1rem;
    }
    
    h1 {
        font-size: 1.6rem;
    }
}

/* Tabs */
.tab-content {
    display: none;
    animation: fadeIn 0.4s ease;
}

.tab-content.active {
    display: block;
}

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

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    margin-bottom: 2.5rem;
}

.stat-card {
    padding: 1.5rem;
    display: flex;
    align-items: center;
    gap: 1rem;
    overflow: hidden;
    position: relative;
    transition: transform 0.3s;
}

.stat-card:hover {
    transform: translateY(-5px);
}

.stat-card.gradient-1::before { content: ''; position: absolute; inset: 0; background: var(--grad-1); opacity: 0.15; z-index: -1;}
.stat-card.gradient-2::before { content: ''; position: absolute; inset: 0; background: var(--grad-2); opacity: 0.15; z-index: -1;}
.stat-card.gradient-3::before { content: ''; position: absolute; inset: 0; background: var(--grad-3); opacity: 0.15; z-index: -1;}

.stat-icon {
    font-size: 2rem;
    padding: 15px;
    border-radius: 12px;
    background: rgba(0,0,0,0.2);
}

.stat-info h3 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.stat-info .value {
    font-size: 1.8rem;
    font-weight: 700;
}

/* Dashboard Grid */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 1.5rem;
}

.table-container {
    padding: 1.5rem;
    min-height: 300px;
}

.table-container h3, .side-panel h3 {
    margin-bottom: 1rem;
    padding-bottom: 1rem;
    border-bottom: 1px solid var(--panel-border);
    font-size: 1.1rem;
}

.placeholder-text {
    color: var(--text-secondary);
    text-align: center;
    margin-top: 2rem;
    font-style: italic;
}

.side-panel {
    padding: 1.5rem;
}

.action-card {
    margin-bottom: 1rem;
    justify-content: flex-start;
}

/* Modals */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.6);
    backdrop-filter: blur(5px);
    align-items: center;
    justify-content: center;
}

.modal.active { display: flex; }

.modal-content {
    padding: 2rem;
    border-radius: 16px;
    width: 90%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
    position: relative;
    animation: fadeInScale 0.3s;
}

@keyframes fadeInScale {
    from { opacity: 0; transform: scale(0.9); }
    to { opacity: 1; transform: scale(1); }
}

.close-btn {
    position: absolute;
    top: 15px;
    right: 20px;
    font-size: 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    transition: var(--transition);
}

.close-btn:hover { color: var(--text-primary); }

.table-header-flex {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 1.5rem;
}

.table-header-flex h3 {
    margin-bottom: 0 !important;
}

.modal-content h3 { margin-bottom: 1.5rem; }

/* Details Grid */
.details-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 1rem;
    text-align: left;
}

.details-item {
    display: flex;
    flex-direction: column;
}

.details-item label {
    font-size: 0.8rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    margin-bottom: 4px;
}

.details-item span {
    font-family: monospace;
    color: var(--accent-color);
}

.token-display {
    background: rgba(0,0,0,0.3);
    padding: 1.5rem;
    border-radius: 12px;
    font-family: monospace;
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--accent-color);
    letter-spacing: 2px;
    border: 1px dashed var(--accent-color);
    margin: 1rem 0;
}

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

/* Customer Selection List (Replacement for Dropdown) */
.customer-list-container {
    max-height: 250px;
    overflow-y: auto;
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--panel-border);
    border-radius: 8px;
    margin-top: 1rem;
}

.customer-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--panel-border);
    transition: var(--transition);
}

.customer-row:last-child {
    border-bottom: none;
}

.customer-row:hover {
    background: rgba(255, 255, 255, 0.05);
}

.customer-info-box {
    text-align: left;
}

.customer-info-box .name {
    font-weight: 600;
    color: var(--text-primary);
    display: block;
}

.customer-info-box .net {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.btn-generate-sm {
    padding: 6px 12px;
    font-size: 0.85rem;
    width: auto;
    min-width: 100px;
}