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

:root {
    --bg-primary: #111827;
    --bg-secondary: #1f2937;
    --bg-tertiary: #374151;
    --text-primary: #f9fafb;
    --text-secondary: #9ca3af;
    --accent-green: #22c55e;
    --accent-green-hover: #16a34a;
    --border-color: #374151;
    --shadow: rgba(0, 0, 0, 0.3);
}

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

.app-container {
    display: flex;
    min-height: 100vh;
}

/* Sidebar */
.sidebar {
    width: 280px;
    background-color: var(--bg-secondary);
    border-right: 1px solid var(--border-color);
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    position: fixed;
    height: 100vh;
    left: 0;
    top: 0;
    transform: translateX(-100%);
    transition: transform 0.3s ease;
    z-index: 1000;
}

.sidebar.open {
    transform: translateX(0);
}

.sidebar-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 2rem;
}

.close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.25rem;
    transition: color 0.2s;
}

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

.logo svg {
    width: 32px;
    height: 32px;
}

.app-name {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
}

.navigation ul {
    list-style: none;
}

.navigation a {
    display: block;
    padding: 0.75rem 1rem;
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: 0.5rem;
    transition: all 0.2s;
    margin-bottom: 0.25rem;
}

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

.navigation a.active {
    background-color: var(--accent-green);
    color: white;
}

/* Main Content */
.main-content {
    flex: 1;
    margin-left: 0;
    padding: 0;
}

.page {
    display: none;
}

.page.active {
    display: block;
}

/* Journal Page Header */
.page-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1.5rem 2rem;
    border-bottom: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
}

.menu-btn {
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.5rem;
    cursor: pointer;
    padding: 0.5rem;
    display: block;
}

.header-title h1 {
    font-size: 1.5rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
}

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

.header-actions {
    display: flex;
    align-items: center;
    gap: 0.75rem;
}

.icon-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.375rem;
    transition: all 0.2s;
}

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

.btn-primary {
    background-color: var(--accent-green);
    color: white;
    border: none;
    padding: 0.625rem 1.25rem;
    border-radius: 0.375rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

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

.btn-secondary {
    background-color: var(--bg-tertiary);
    color: var(--text-primary);
    border: none;
    padding: 0.625rem 1.25rem;
    border-radius: 0.375rem;
    font-weight: 600;
    cursor: pointer;
    transition: background-color 0.2s;
}

.btn-secondary:hover {
    background-color: var(--border-color);
}

/* Summary Cards */
.summary-cards {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 1rem;
    padding: 2rem;
}

.card {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    padding: 1.5rem;
}

.card h3 {
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: 0.5rem;
}

.card-value {
    font-size: 1.75rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Tabs */
.tabs {
    display: flex;
    gap: 0.5rem;
    padding: 0 2rem;
    margin-bottom: 1rem;
}

.tab {
    background: none;
    border: none;
    color: var(--text-secondary);
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    transition: all 0.2s;
    font-weight: 500;
}

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

.tab.active {
    color: var(--accent-green);
    border-bottom-color: var(--accent-green);
}

/* Filters */
.filters {
    display: flex;
    gap: 0.5rem;
    padding: 0 2rem;
    margin-bottom: 1.5rem;
}

.filter-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 0.5rem 1rem;
    border-radius: 1.5rem;
    cursor: pointer;
    transition: all 0.2s;
    font-size: 0.875rem;
}

.filter-btn:hover {
    border-color: var(--text-secondary);
    color: var(--text-primary);
}

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

/* Trade List */
.trade-list {
    padding: 0 2rem;
    min-height: 300px;
}

.empty-state {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: 4rem 2rem;
    text-align: center;
}

.empty-state svg {
    margin-bottom: 1.5rem;
    opacity: 0.5;
}

.empty-state h2 {
    font-size: 1.25rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.empty-state p {
    color: var(--text-secondary);
    max-width: 400px;
    margin-bottom: 1.5rem;
}

/* Toolbar */
.toolbar {
    display: flex;
    gap: 0.5rem;
    padding: 1rem 2rem;
    border-top: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
}

.tool-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    padding: 0.5rem;
    border-radius: 0.375rem;
    transition: all 0.2s;
}

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

/* Content Pages (About, Privacy, Terms) */
.content-header {
    padding: 1.5rem 2rem;
}

.back-link {
    color: var(--text-secondary);
    text-decoration: none;
    transition: color 0.2s;
}

.back-link:hover {
    color: var(--accent-green);
}

.content {
    padding: 0 2rem 2rem 2rem;
    max-width: 800px;
}

.content h1 {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.last-updated {
    color: var(--text-secondary);
    font-size: 0.875rem;
    margin-bottom: 1.5rem;
}

.content h2 {
    font-size: 1.25rem;
    font-weight: 600;
    margin-top: 2rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}

.content p {
    color: var(--text-secondary);
    margin-bottom: 1rem;
    line-height: 1.7;
}

.content ul {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.content li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.content code {
    background-color: var(--bg-tertiary);
    padding: 0.125rem 0.375rem;
    border-radius: 0.25rem;
    font-family: monospace;
    font-size: 0.875rem;
}

.content a {
    color: var(--accent-green);
    text-decoration: none;
}

.content a:hover {
    text-decoration: underline;
}

/* Warning Box */
.warning-box {
    background-color: rgba(239, 68, 68, 0.1);
    border: 1px solid rgba(239, 68, 68, 0.3);
    border-radius: 0.5rem;
    padding: 1.5rem;
    margin-bottom: 2rem;
}

.warning-box h2 {
    color: #ef4444;
    font-size: 1.125rem;
    margin-bottom: 0.75rem;
}

.warning-box p {
    color: var(--text-secondary);
    margin-bottom: 0;
}

.content ol {
    margin-left: 1.5rem;
    margin-bottom: 1rem;
}

.content li {
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.content h3 {
    font-size: 1rem;
    font-weight: 600;
    margin-top: 1.5rem;
    margin-bottom: 0.75rem;
    color: var(--text-primary);
}
.about-subtitle {
    font-size: 1.25rem;
    line-height: 1.7;
    color: #9CA3AF;
    margin-bottom: 1.5rem;
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.7);
    z-index: 2000;
    justify-content: center;
    align-items: center;
    padding: 1rem;
}

.modal.open {
    display: flex;
}

.modal-content {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.75rem;
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow-y: auto;
}

.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: 1.25rem;
    font-weight: 600;
}

.modal-header .close-btn {
    font-size: 1.5rem;
}

#tradeForm {
    padding: 1.5rem;
}

.form-group {
    margin-bottom: 1rem;
}

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

.form-group label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
}

.form-group input,
.form-group select,
.form-group textarea {
    width: 100%;
    padding: 0.625rem;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: 0.375rem;
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: border-color 0.2s;
}

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

.form-group textarea {
    resize: vertical;
    min-height: 80px;
}

.form-actions {
    display: flex;
    justify-content: flex-end;
    gap: 0.75rem;
    margin-top: 1.5rem;
}

/* Trade Item */
.trade-item {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: 0.5rem;
    padding: 1rem;
    margin-bottom: 0.75rem;
    transition: all 0.2s;
}

.trade-item:hover {
    border-color: var(--accent-green);
}

.trade-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.75rem;
}

.trade-pair {
    font-weight: 600;
    font-size: 1rem;
}

.trade-direction {
    font-size: 0.75rem;
    padding: 0.25rem 0.5rem;
    border-radius: 0.25rem;
    text-transform: uppercase;
    font-weight: 600;
}

.trade-direction.long {
    background-color: rgba(34, 197, 94, 0.2);
    color: var(--accent-green);
}

.trade-direction.short {
    background-color: rgba(239, 68, 68, 0.2);
    color: #ef4444;
}

.trade-pnl {
    font-weight: 700;
}

.trade-pnl.positive {
    color: var(--accent-green);
}

.trade-pnl.negative {
    color: #ef4444;
}

.trade-details {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
    gap: 0.5rem;
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.trade-details span {
    display: block;
}

.trade-details strong {
    color: var(--text-primary);
}

.trade-notes {
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px solid var(--border-color);
    font-size: 0.875rem;
    color: var(--text-secondary);
}

.trade-notes p {
    margin-bottom: 0.25rem;
}

.trade-notes strong {
    color: var(--text-primary);
}

/* Responsive */
@media (min-width: 768px) {
    .sidebar {
        transform: translateX(0);
    }

    .main-content {
        margin-left: 280px;
    }

    .menu-btn {
        display: none;
    }

    .close-btn {
        display: none;
    }
}

@media (max-width: 767px) {
    .summary-cards {
        grid-template-columns: 1fr 1fr;
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .header-title h1 {
        font-size: 1.25rem;
    }

    .header-actions .btn-primary {
        display: none;
    }
}