@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&display=swap');

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

:root {
    --bg-primary: #0f0f1e;
    --bg-secondary: #1a1a2e;
    --bg-tertiary: #252541;
    --text-primary: #e4e4e7;
    --text-secondary: #a1a1aa;
    --border-color: #2d2d44;
    
    --profit-bg: #10b98120;
    --profit-border: #10b981;
    --profit-glow: rgba(16, 185, 129, 0.3);
    
    --loss-bg: #ef444420;
    --loss-border: #ef4444;
    --loss-glow: rgba(239, 68, 68, 0.3);
    
    --accent: #6366f1;
    --accent-hover: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.4);
    
    --selected: #a855f7;
    --selected-glow: rgba(168, 85, 247, 0.4);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: linear-gradient(135deg, #0f0f1e 0%, #1a1a2e 100%);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
}

.container {
    display: flex;
    min-height: 100vh;
    max-width: 1800px;
    margin: 0 auto;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: 1rem 1rem;
    overflow-y: auto;
    position: sticky;
    top: 0;
    height: 100vh;
}

.sync-status {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    background: var(--bg-tertiary);
    border-radius: 8px;
    margin-bottom: 1rem;
    border: 1px solid var(--border-color);
    font-size: 0.75rem;
}

.sync-indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--text-secondary);
    animation: pulse 2s infinite;
}

.sync-status.connected .sync-indicator {
    background: #10b981;
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
}

.sync-status.local .sync-indicator {
    background: #f59e0b;
    animation: none;
}

.sync-status.error .sync-indicator {
    background: #ef4444;
    animation: none;
}

.sync-text {
    color: var(--text-secondary);
    font-size: 0.75rem;
}

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

.sidebar h2 {
    font-size: 1.25rem;
    margin-bottom: 1rem;
    color: var(--text-primary);
    font-weight: 700;
}

.stats-section {
    background: var(--bg-tertiary);
    border-radius: 12px;
    padding: 0.75rem;
    margin-bottom: 0.75rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.3);
}

.stats-section h3 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.stat-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.4rem 0;
    border-bottom: 1px solid var(--border-color);
}

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

.stat-label {
    font-size: 0.8rem;
    color: var(--text-secondary);
}

.stat-value {
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
    text-align: right;
}

#bestDays {
    font-size: 0.875rem;
}

#bestDays .best-day-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.4rem 0;
    border-bottom: 1px solid var(--border-color);
}

#bestDays .best-day-item:last-child {
    border-bottom: none;
}

.shortcuts-info {
    background: var(--bg-tertiary);
    border-radius: 12px;
    padding: 0.75rem;
    border: 1px solid var(--border-color);
}

.shortcuts-info h3 {
    font-size: 0.875rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 0.75rem;
    font-weight: 600;
}

.shortcuts-info p {
    font-size: 0.875rem;
    color: var(--text-secondary);
    margin-bottom: 0.4rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

kbd {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 4px;
    padding: 0.25rem 0.5rem;
    font-family: 'Inter', monospace;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--accent);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

/* Calendar Container */
.calendar-container {
    flex: 1;
    padding: 1.5rem;
    max-width: calc(100vw - 280px);
}

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

.month-year {
    display: flex;
    align-items: center;
    gap: 1rem;
}

.month-year h1 {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

.nav-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    width: 48px;
    height: 48px;
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.nav-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
    transform: translateY(-2px);
}

.today-btn {
    background: var(--bg-tertiary);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
}

.today-btn:hover {
    background: var(--accent);
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
}

/* Calendar Grid */
.calendar-grid {
    background: var(--bg-secondary);
    border-radius: 16px;
    padding: 1rem;
    border: 1px solid var(--border-color);
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.4);
    display: grid;
    grid-template-columns: repeat(7, 1fr);
    gap: 0.75rem;
}

.weekday-header {
    text-align: center;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    padding: 0.75rem 0;
}

.calendar-day {
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: 10px;
    min-height: 90px;
    padding: 0.5rem;
    cursor: pointer;
    transition: all 0.3s ease;
    position: relative;
    overflow: hidden;
    display: flex;
    flex-direction: column;
}

.calendar-day:hover {
    transform: translateY(-2px);
    border-color: var(--accent);
    box-shadow: 0 0 20px var(--accent-glow);
}

.calendar-day.other-month {
    opacity: 0.3;
}

.calendar-day.today {
    border-color: var(--accent);
    box-shadow: 0 0 15px var(--accent-glow);
}

.calendar-day.selected {
    border-color: var(--selected);
    box-shadow: 0 0 25px var(--selected-glow);
    transform: scale(1.02);
}

.calendar-day.profit {
    background: var(--profit-bg);
    border-color: var(--profit-border);
}

.calendar-day.profit:hover {
    box-shadow: 0 0 25px var(--profit-glow);
    border-color: var(--profit-border);
}

.calendar-day.loss {
    background: var(--loss-bg);
    border-color: var(--loss-border);
}

.calendar-day.loss:hover {
    box-shadow: 0 0 25px var(--loss-glow);
    border-color: var(--loss-border);
}

.day-number {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: 0.25rem;
}

.day-pnl {
    font-size: 1rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

.day-pnl.profit {
    color: var(--profit-border);
    text-shadow: 0 0 10px var(--profit-glow);
}

.day-pnl.loss {
    color: var(--loss-border);
    text-shadow: 0 0 10px var(--loss-glow);
}

.day-stats {
    font-size: 0.75rem;
    color: var(--text-secondary);
    line-height: 1.4;
}

/* Month Summary */
.month-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 0.75rem;
    margin-top: 1.5rem;
}

.summary-item {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 1rem;
    text-align: center;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.3);
}

.summary-item span {
    display: block;
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 600;
    white-space: nowrap;
}

.summary-item strong {
    display: block;
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    font-variant-numeric: tabular-nums;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(8px);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 16px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.6);
    animation: modalSlideIn 0.3s ease;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

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

.modal-header h2 {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 2rem;
    cursor: pointer;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 8px;
    transition: all 0.3s ease;
}

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

#tradeForm {
    padding: 1.5rem;
}

.form-group {
    margin-bottom: 1.5rem;
}

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group textarea {
    width: 100%;
    background: var(--bg-tertiary);
    border: 2px solid var(--border-color);
    border-radius: 8px;
    padding: 0.75rem;
    color: var(--text-primary);
    font-size: 1rem;
    font-family: 'Inter', sans-serif;
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group textarea {
    resize: vertical;
}

.form-actions {
    display: flex;
    gap: 1rem;
    justify-content: flex-end;
    margin-top: 2rem;
}

.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    border: none;
    font-family: 'Inter', sans-serif;
}

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

.btn-primary:hover {
    background: var(--accent-hover);
    box-shadow: 0 0 20px var(--accent-glow);
    transform: translateY(-2px);
}

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

.btn-secondary:hover {
    background: var(--bg-primary);
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 8px;
}

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

::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 4px;
}

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

/* Responsive */
@media (max-width: 1200px) {
    .sidebar {
        width: 280px;
    }
}

@media (max-width: 968px) {
    .container {
        flex-direction: column;
    }
    
    .sidebar {
        width: 100%;
        height: auto;
        position: relative;
        border-right: none;
        border-bottom: 1px solid var(--border-color);
    }
    
    .calendar-grid {
        gap: 0.5rem;
    }
    
    .calendar-day {
        min-height: 100px;
        padding: 0.5rem;
    }
}

@media (max-width: 640px) {
    .calendar-container {
        padding: 1rem;
    }
    
    .calendar-day {
        min-height: 80px;
        font-size: 0.75rem;
    }
    
    .day-number {
        font-size: 1rem;
    }
    
    .day-pnl {
        font-size: 1rem;
    }
}