:root {
    --bg-primary: #0a0a0a;
    --bg-secondary: #111111;
    --bg-card: #1a1a1a;
    --bg-card-hover: #222222;
    --border: #2a2a2a;
    --border-light: #333333;

    --text-primary: #ffffff;
    --text-secondary: #a0a0a0;
    --text-muted: #666666;

    --accent-green: #00ff88;
    --accent-green-dim: rgba(0, 255, 136, 0.15);
    --accent-red: #ff3b3b;
    --accent-red-dim: rgba(255, 59, 59, 0.15);
    --accent-orange: #ff9500;
    --accent-orange-dim: rgba(255, 149, 0, 0.15);
    --accent-blue: #0088ff;
    --accent-blue-dim: rgba(0, 136, 255, 0.15);
    --accent-purple: #a855f7;
    --accent-purple-dim: rgba(168, 85, 247, 0.15);
}

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

body {
    font-family: -apple-system, BlinkMacSystemFont, 'SF Pro Display', 'Segoe UI', Roboto, sans-serif;
    background: var(--bg-primary);
    min-height: 100vh;
    color: var(--text-primary);
    padding: 24px;
    line-height: 1.5;
}

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

/* Header */
header {
    text-align: center;
    padding: 40px 0;
    margin-bottom: 40px;
}

header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.5px;
}

.subtitle {
    color: var(--text-muted);
    margin-top: 8px;
    font-size: 1rem;
}

/* Tab Navigation */
.tab-nav {
    display: flex;
    gap: 8px;
    margin-bottom: 24px;
    padding: 6px;
    background: var(--bg-secondary);
    border-radius: 12px;
    border: 1px solid var(--border);
}

.tab-btn {
    flex: 1;
    padding: 14px 24px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s ease;
}

.tab-btn:hover {
    color: var(--text-primary);
    background: var(--bg-card);
}

.tab-btn.active {
    background: var(--text-primary);
    color: var(--bg-primary);
}

.tab-content {
    display: none;
}

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

@media (max-width: 600px) {
    .tab-nav {
        flex-wrap: wrap;
    }

    .tab-btn {
        flex: 1 1 45%;
        padding: 12px 16px;
        font-size: 0.85rem;
    }
}

/* Section Styling */
section {
    margin-bottom: 32px;
}

section h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-bottom: 16px;
    color: var(--text-primary);
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Card Base */
.card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    transition: all 0.2s ease;
}

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

/* Grid Layouts */
.grid-2 {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

.grid-3 {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
}

.grid-4 {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

.grid-5 {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
}

@media (max-width: 1200px) {
    .grid-5 { grid-template-columns: repeat(3, 1fr); }
    .grid-4 { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
    .grid-5, .grid-4, .grid-3, .grid-2 { grid-template-columns: 1fr; }
}

/* Task List */
.task-list {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.task-item {
    display: flex;
    align-items: center;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border);
    transition: background 0.2s;
}

.task-item:last-child {
    border-bottom: none;
}

.task-item:hover {
    background: var(--bg-card-hover);
}

.task-item input[type="checkbox"] {
    width: 20px;
    height: 20px;
    margin-right: 16px;
    cursor: pointer;
    accent-color: var(--accent-green);
}

.task-item span {
    flex: 1;
    color: var(--text-primary);
}

.task-item.completed span {
    text-decoration: line-through;
    color: var(--text-muted);
}

.task-priority {
    padding: 4px 12px;
    border-radius: 100px;
    font-size: 0.75rem;
    font-weight: 500;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.priority-high {
    background: var(--accent-red-dim);
    color: var(--accent-red);
}

.priority-medium {
    background: var(--accent-orange-dim);
    color: var(--accent-orange);
}

/* Account Cards */
.accounts-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
}

@media (max-width: 768px) {
    .accounts-grid { grid-template-columns: 1fr; }
}

.account-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    transition: all 0.2s ease;
}

.account-card:hover {
    border-color: var(--border-light);
    transform: translateY(-2px);
}

.account-card.apex {
    border-top: 3px solid var(--accent-orange);
}

.account-card.lucid {
    border-top: 3px solid var(--accent-purple);
}

.account-card h3 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 12px;
}

.account-count {
    font-size: 2.5rem;
    font-weight: 700;
    margin-bottom: 16px;
}

.account-limit {
    font-size: 1.25rem;
    color: var(--text-muted);
    font-weight: 500;
}

.apex .account-count {
    color: var(--accent-orange);
}

.lucid .account-count {
    color: var(--accent-purple);
}

.account-card button {
    background: transparent;
    border: 1px solid var(--border);
    color: var(--text-secondary);
    padding: 10px 20px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.875rem;
    transition: all 0.2s;
    margin-top: 12px;
}

.account-card button:hover {
    background: var(--bg-card-hover);
    border-color: var(--border-light);
    color: var(--text-primary);
}

/* Strategy Section */
.strategy-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    overflow: hidden;
}

.strategy-item {
    display: flex;
    align-items: flex-start;
    padding: 20px 24px;
    border-bottom: 1px solid var(--border);
    gap: 16px;
}

.strategy-item:last-child {
    border-bottom: none;
}

.strategy-item .icon {
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--bg-secondary);
    border-radius: 10px;
}

.strategy-content {
    flex: 1;
}

.strategy-content h4 {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.strategy-content p {
    color: var(--text-muted);
    font-size: 0.875rem;
    margin-bottom: 12px;
}

.strategy-content input[type="checkbox"] {
    width: 18px;
    height: 18px;
    margin-right: 8px;
    cursor: pointer;
    accent-color: var(--accent-green);
}

.strategy-content input[type="number"] {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: 6px;
    width: 70px;
    margin-right: 8px;
}

.strategy-content label {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

/* Settings */
.settings-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
}

.settings-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

@media (max-width: 900px) {
    .settings-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 500px) {
    .settings-grid { grid-template-columns: 1fr; }
}

.setting-item {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.setting-item label {
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.setting-item input {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.2s;
}

.setting-item input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.settings-actions {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.reset-btn {
    background: var(--accent-red-dim);
    border: 1px solid var(--accent-red);
    color: var(--accent-red);
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.reset-btn:hover {
    background: var(--accent-red);
    color: var(--text-primary);
}

/* Money Tracker */
.money-grid {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

@media (max-width: 1100px) {
    .money-grid { grid-template-columns: repeat(3, 1fr); }
}

@media (max-width: 600px) {
    .money-grid { grid-template-columns: repeat(2, 1fr); }
}

.money-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    text-align: center;
}

.money-card h4 {
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
    font-weight: 500;
}

.money-card small {
    display: block;
    color: var(--text-muted);
    margin-top: 4px;
    font-size: 0.8rem;
}

.money-number {
    font-size: 1.75rem;
    font-weight: 700;
}

.money-card.spent {
    border-top: 3px solid var(--accent-red);
}

.money-card.spent .money-number {
    color: var(--accent-red);
}

.money-card.apex-spent {
    border-top: 3px solid var(--accent-orange);
}

.money-card.apex-spent .money-number {
    color: var(--accent-orange);
}

.money-card.activation-spent {
    border-top: 3px solid var(--accent-blue);
}

.money-card.activation-spent .money-number {
    color: var(--accent-blue);
}

.money-card.lucid-spent {
    border-top: 3px solid var(--accent-purple);
}

.money-card.lucid-spent .money-number {
    color: var(--accent-purple);
}

.money-card.roi {
    border-top: 3px solid var(--accent-green);
}

.money-card.roi .money-number {
    color: var(--accent-green);
}

/* Add Expense Form */
.add-expense {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    margin-bottom: 16px;
}

.add-expense h4 {
    margin-bottom: 16px;
    color: var(--text-primary);
    font-weight: 600;
}

.expense-form {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
}

.expense-form select,
.expense-form input {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 0.9rem;
}

.expense-form select {
    min-width: 180px;
}

.expense-form input[type="number"] {
    width: 120px;
}

.expense-form input[type="text"] {
    flex: 1;
    min-width: 180px;
}

.expense-form select:focus,
.expense-form input:focus {
    outline: none;
    border-color: var(--accent-blue);
}

.expense-form button {
    background: var(--text-primary);
    border: none;
    color: var(--bg-primary);
    padding: 12px 24px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 600;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.expense-form button:hover {
    background: var(--text-secondary);
}

/* Expense History */
.expense-history {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
}

.expense-history h4 {
    margin-bottom: 16px;
    color: var(--text-primary);
    font-weight: 600;
}

#expense-list {
    max-height: 240px;
    overflow-y: auto;
}

.expense-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 14px 0;
    border-bottom: 1px solid var(--border);
}

.expense-item:last-child {
    border-bottom: none;
}

.expense-item .expense-info {
    display: flex;
    flex-direction: column;
    gap: 2px;
}

.expense-item .expense-type {
    font-weight: 600;
    color: var(--text-primary);
}

.expense-item .expense-date {
    font-size: 0.8rem;
    color: var(--text-muted);
}

.expense-item .expense-note {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.expense-item .expense-amount {
    font-weight: 700;
    color: var(--accent-red);
    font-size: 1rem;
}

.expense-item .delete-btn {
    background: var(--accent-red-dim);
    border: none;
    color: var(--accent-red);
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    margin-left: 12px;
    font-size: 0.8rem;
    transition: all 0.2s;
}

.expense-item .delete-btn:hover {
    background: var(--accent-red);
    color: var(--text-primary);
}

/* Simulator */
.simulator-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
}

.simulator-inputs {
    display: flex;
    flex-wrap: wrap;
    gap: 16px;
    align-items: flex-end;
    margin-bottom: 24px;
    padding-bottom: 24px;
    border-bottom: 1px solid var(--border);
}

.sim-input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.sim-input-group label {
    color: var(--text-muted);
    font-size: 0.8rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sim-input-group input,
.sim-input-group select {
    background: var(--bg-secondary);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 1rem;
    min-width: 140px;
}

.sim-input-group input:focus,
.sim-input-group select:focus {
    outline: none;
    border-color: var(--accent-green);
}

/* Calendar */
.calendar-container {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 20px;
}

.calendar-header {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
    margin-bottom: 12px;
}

.day-label {
    text-align: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    padding: 8px 0;
}

.calendar-grid {
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 8px;
}

.calendar-day {
    aspect-ratio: 1;
    min-height: 80px;
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: 8px;
    display: flex;
    flex-direction: column;
    transition: all 0.2s;
    cursor: default;
}

.calendar-day:hover {
    border-color: var(--border-light);
}

.calendar-day.empty {
    background: transparent;
    border: none;
}

.calendar-day.weekend {
    background: var(--bg-primary);
    opacity: 0.5;
}

.calendar-day.holiday {
    background: var(--accent-red-dim);
    border-color: var(--accent-red);
}

.calendar-day.today {
    border-color: var(--accent-green);
    border-width: 2px;
}

.calendar-day.past {
    opacity: 0.4;
}

.calendar-day .day-number {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 4px;
}

.calendar-day .day-stats {
    flex: 1;
    display: flex;
    flex-direction: column;
    justify-content: flex-end;
    gap: 2px;
}

.calendar-day .stat-row {
    display: flex;
    justify-content: space-between;
    font-size: 0.65rem;
}

.calendar-day .stat-label {
    color: var(--text-muted);
}

.calendar-day .stat-value {
    font-weight: 600;
}

.calendar-day .stat-value.accounts {
    color: var(--accent-purple);
}

.calendar-day .stat-value.payout {
    color: var(--accent-green);
}

.calendar-day .stat-value.expense {
    color: var(--accent-red);
}

/* Calendar Summary */
.calendar-summary {
    background: var(--bg-secondary);
    border-radius: 12px;
    padding: 24px;
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 20px;
}

@media (max-width: 900px) {
    .calendar-summary { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 500px) {
    .calendar-summary { grid-template-columns: 1fr; }
}

.summary-item {
    text-align: center;
}

.summary-item .label {
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.summary-item .value {
    font-size: 1.75rem;
    font-weight: 700;
}

.summary-item .value.green { color: var(--accent-green); }
.summary-item .value.red { color: var(--accent-red); }
.summary-item .value.purple { color: var(--accent-purple); }
.summary-item .value.blue { color: var(--accent-blue); }
.summary-item .value.muted { color: var(--text-muted); }

.calendar-day .stat-value.disabled {
    color: var(--text-muted);
}

@media (max-width: 768px) {
    .calendar-day {
        min-height: 60px;
        padding: 6px;
    }

    .calendar-day .day-number {
        font-size: 0.75rem;
    }

    .calendar-day .stat-row {
        font-size: 0.55rem;
    }
}

.sim-result-item h4 {
    color: var(--text-muted);
    font-size: 0.7rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
    font-weight: 500;
}

.sim-result-item .value {
    font-size: 1.5rem;
    font-weight: 700;
}

.sim-result-item .value.green { color: var(--accent-green); }
.sim-result-item .value.orange { color: var(--accent-orange); }
.sim-result-item .value.red { color: var(--accent-red); }
.sim-result-item .value.blue { color: var(--accent-blue); }
.sim-result-item .value.purple { color: var(--accent-purple); }

.sim-breakdown {
    margin-top: 20px;
    padding-top: 20px;
    border-top: 1px solid var(--border);
}

.sim-breakdown h4 {
    color: var(--text-secondary);
    margin-bottom: 12px;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sim-breakdown-row {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid var(--border);
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.sim-breakdown-row:last-child {
    border-bottom: none;
    font-weight: 700;
    color: var(--accent-green);
    font-size: 1rem;
    padding-top: 12px;
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
}

@media (max-width: 900px) {
    .stats-grid { grid-template-columns: repeat(2, 1fr); }
}

.stat-card {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 24px;
    text-align: center;
}

.stat-card h4 {
    color: var(--text-muted);
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
    font-weight: 500;
}

.stat-number {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Daily Log */
.log-container {
    background: var(--bg-card);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 20px;
    max-height: 300px;
    overflow-y: auto;
    margin-bottom: 16px;
}

.log-entry {
    padding: 16px 0;
    border-bottom: 1px solid var(--border);
}

.log-entry:last-child {
    border-bottom: none;
}

.log-entry .date {
    color: var(--text-primary);
    font-weight: 600;
    margin-bottom: 6px;
}

.log-entry .details {
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.save-btn {
    background: var(--text-primary);
    border: none;
    color: var(--bg-primary);
    padding: 14px 32px;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
}

.save-btn:hover {
    background: var(--text-secondary);
    transform: translateY(-1px);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}

::-webkit-scrollbar-track {
    background: var(--bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--border-light);
    border-radius: 3px;
}

::-webkit-scrollbar-thumb:hover {
    background: var(--text-muted);
}

/* Responsive */
@media (max-width: 768px) {
    body {
        padding: 16px;
    }

    header h1 {
        font-size: 1.75rem;
    }

    .strategy-item {
        flex-direction: column;
    }

    .expense-form {
        flex-direction: column;
    }

    .expense-form select,
    .expense-form input,
    .expense-form button {
        width: 100%;
    }

    .simulator-inputs {
        flex-direction: column;
        align-items: stretch;
    }

    .sim-input-group input {
        width: 100%;
    }

    .sim-btn {
        width: 100%;
    }
}