/**
 * OlympusTrade Unified Theme - Professional Edition
 * Shared styles for all custom pages
 * v2.0 - December 2025
 * Style: FreqUI / Bloomberg Terminal inspired
 */

/* CSS Variables - Professional Color Palette */
:root {
    /* Primary: Teal/Cyan (professional, calm) */
    --primary: #0089a1;
    --primary-dark: #006c80;
    --primary-light: #00b8d4;

    /* Secondary: Muted purple (accent) */
    --secondary: #6366f1;
    --secondary-light: #818cf8;

    /* Background: Dark blue-gray (Bloomberg-like) */
    --dark-bg: #0d1117;
    --dark-card: #161b22;
    --dark-card-hover: #1c2128;
    --dark-border: rgba(48, 54, 61, 0.8);

    /* Text */
    --text-primary: #e6edf3;
    --text-secondary: #8b949e;
    --text-muted: #6e7681;

    /* Status Colors (muted, professional) */
    --success: #3fb950;
    --success-bg: rgba(63, 185, 80, 0.15);
    --warning: #d29922;
    --warning-bg: rgba(210, 153, 34, 0.15);
    --danger: #f85149;
    --danger-bg: rgba(248, 81, 73, 0.15);
    --info: #58a6ff;
    --info-bg: rgba(88, 166, 255, 0.15);

    /* Sidebar */
    --sidebar-primary: var(--primary);
    --sidebar-bg: #010409;
}

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

/* Base Body Styles - Bloomberg Terminal */
body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'SF Pro Display', sans-serif;
    background: var(--dark-bg);
    color: var(--text-primary);
    min-height: 100vh;
    padding: 20px;
    padding-bottom: 80px;
    line-height: 1.5;
}

/* Container */
.container {
    max-width: 1600px;
    margin: 0 auto;
}

/* Custom Sidebar Navigation */
.olympus-sidebar {
    position: fixed;
    top: 0;
    left: 0;
    height: 100vh;
    width: 280px;
    background: linear-gradient(180deg, #1a1f3a 0%, #0f1429 100%);
    border-right: 1px solid var(--dark-border);
    z-index: 10000;
    display: flex;
    flex-direction: column;
    box-shadow: 10px 0 30px rgba(0, 0, 0, 0.5);
    transform: translateX(-280px);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

/* Sidebar Overlay */
.sidebar-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 9999;
    opacity: 0;
    visibility: hidden;
    transition: all 0.3s;
}

.sidebar-overlay.visible {
    opacity: 1;
    visibility: visible;
}

/* Sidebar Toggle Button */
.sidebar-toggle {
    position: fixed;
    bottom: 20px;
    left: 20px;
    z-index: 10001;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--dark-bg);
    border: none;
    padding: 12px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-weight: 700;
    font-size: 16px;
    box-shadow: 0 4px 20px rgba(0, 137, 161, 0.3);
    transition: all 0.3s;
    font-family: inherit;
}

.sidebar-toggle:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 30px rgba(0, 137, 161, 0.5);
}

/* Sidebar Header */
.sidebar-header {
    padding: 30px 20px;
    border-bottom: 1px solid var(--dark-border);
    background: rgba(0, 137, 161, 0.05);
}

.sidebar-logo {
    font-size: 24px;
    font-weight: 800;
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin: 0;
}

.sidebar-subtitle {
    color: var(--text-secondary);
    font-size: 12px;
    margin-top: 4px;
}

/* Status Indicator */
.status-indicator {
    display: inline-block;
    width: 8px;
    height: 8px;
    background: var(--primary);
    border-radius: 50%;
    margin-right: 6px;
    animation: pulse 2s infinite;
}

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

/* Sidebar Navigation */
.sidebar-nav {
    flex: 1;
    padding: 20px 0;
    overflow-y: auto;
}

.nav-section {
    margin-bottom: 20px;
}

.nav-section-title {
    padding: 0 20px;
    font-size: 11px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
    margin-bottom: 8px;
}

.nav-link-custom {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 14px 20px;
    color: var(--text-primary);
    text-decoration: none;
    transition: all 0.2s;
    border-left: 3px solid transparent;
    font-size: 15px;
    font-weight: 500;
}

.nav-link-custom:hover {
    background: rgba(0, 137, 161, 0.08);
    border-left-color: var(--sidebar-primary);
    color: var(--sidebar-primary);
}

.nav-link-custom.active {
    background: rgba(0, 137, 161, 0.12);
    border-left-color: var(--sidebar-primary);
    color: var(--sidebar-primary);
}

.nav-icon {
    font-size: 20px;
    width: 24px;
    text-align: center;
}

.nav-badge {
    margin-left: auto;
    padding: 2px 8px;
    background: rgba(0, 137, 161, 0.2);
    color: var(--sidebar-primary);
    border-radius: 10px;
    font-size: 10px;
    font-weight: 700;
}

/* Sidebar Footer */
.sidebar-footer {
    padding: 20px;
    border-top: 1px solid var(--dark-border);
    font-size: 12px;
    color: var(--text-secondary);
    text-align: center;
}

/* Theme Buttons */
.theme-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    padding: 12px 20px;
}

.theme-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: 3px solid transparent;
    cursor: pointer;
    transition: all 0.2s;
}

.theme-btn:hover {
    transform: scale(1.1);
}

.theme-btn.active {
    border-color: #fff;
    transform: scale(1.15);
}

/* Page Header - Bloomberg Style (no gradients) */
.page-header, .header {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 12px;
    padding: 24px 30px;
    margin-bottom: 24px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.page-header h1, .header h1 {
    font-size: 26px;
    font-weight: 700;
    color: var(--primary);
    margin-bottom: 0;
}

.page-header .subtitle, .header p {
    color: var(--text-secondary);
    font-size: 14px;
    margin-top: 4px;
}

.header-title {
    display: flex;
    flex-direction: column;
}

.header-nav, .header-actions, .nav-links, .header-btns {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

/* Navigation Buttons in Header */
.nav-btn, .back-btn {
    background: rgba(0, 137, 161, 0.1);
    color: var(--primary);
    padding: 10px 18px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: 600;
    font-size: 13px;
    transition: all 0.2s;
    border: 1px solid transparent;
}

.nav-btn:hover, .back-btn:hover {
    background: rgba(0, 137, 161, 0.2);
    border-color: var(--primary);
}

.nav-btn.active {
    background: var(--primary);
    color: var(--dark-bg);
}

.header-actions {
    display: flex;
    gap: 12px;
    align-items: center;
    flex-wrap: wrap;
}

/* Cards */
.card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--dark-border);
    border-radius: 12px;
    padding: 20px;
    backdrop-filter: blur(10px);
}

.card-header {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    padding-bottom: 12px;
    border-bottom: 1px solid var(--dark-border);
}

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

.stat-card {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--dark-border);
    border-radius: 12px;
    padding: 20px;
    backdrop-filter: blur(10px);
}

.stat-card h3 {
    font-size: 14px;
    opacity: 0.7;
    margin-bottom: 8px;
}

.stat-card .value {
    font-size: 28px;
    font-weight: 700;
}

/* Buttons */
.btn {
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    transition: all 0.2s;
    border: none;
    font-family: inherit;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-dark) 100%);
    color: var(--dark-bg);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 15px rgba(0, 137, 161, 0.4);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.15);
}

.btn-success {
    background: linear-gradient(135deg, var(--success) 0%, #059669 100%);
    color: white;
}

.btn-danger {
    background: linear-gradient(135deg, var(--danger) 0%, #dc2626 100%);
    color: white;
}

.btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none !important;
}

/* Badges */
.badge {
    display: inline-block;
    padding: 4px 12px;
    border-radius: 20px;
    font-size: 12px;
    font-weight: 600;
}

.badge-success, .badge-long {
    background: rgba(16, 185, 129, 0.2);
    color: #10b981;
}

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

.badge-warning, .badge-hold {
    background: rgba(245, 158, 11, 0.2);
    color: #f59e0b;
}

.badge-info {
    background: rgba(59, 130, 246, 0.2);
    color: #3b82f6;
}

/* Tables */
.table-container {
    overflow-x: auto;
    border-radius: 12px;
    border: 1px solid var(--dark-border);
}

table {
    width: 100%;
    border-collapse: collapse;
}

th, td {
    padding: 12px 16px;
    text-align: left;
    border-bottom: 1px solid var(--dark-border);
}

th {
    background: rgba(255, 255, 255, 0.05);
    font-weight: 600;
    font-size: 13px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

tr:hover {
    background: rgba(255, 255, 255, 0.03);
}

/* Forms */
input, select, textarea {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--dark-border);
    border-radius: 8px;
    padding: 10px 14px;
    color: var(--text-primary);
    font-size: 14px;
    width: 100%;
    font-family: inherit;
    transition: all 0.2s;
}

input:focus, select:focus, textarea:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(0, 137, 161, 0.2);
}

label {
    display: block;
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: 6px;
}

/* 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;
}

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

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

    .olympus-sidebar {
        width: 100%;
        transform: translateX(-100%);
    }

    .page-header {
        flex-direction: column;
        text-align: center;
    }

    .page-header h1 {
        font-size: 22px;
    }
}

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

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

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

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Utility Classes */
.text-success { color: var(--success); }
.text-danger { color: var(--danger); }
.text-warning { color: var(--warning); }
.text-muted { color: var(--text-secondary); }
.text-center { text-align: center; }
.mt-2 { margin-top: 8px; }
.mt-4 { margin-top: 16px; }
.mb-2 { margin-bottom: 8px; }
.mb-4 { margin-bottom: 16px; }
.hidden { display: none !important; }

/* Loading Spinner */
.spinner {
    display: inline-block;
    width: 20px;
    height: 20px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--primary);
    animation: spin 1s ease-in-out infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

/* Toasts/Notifications */
.toast {
    position: fixed;
    bottom: 80px;
    right: 20px;
    padding: 12px 20px;
    border-radius: 8px;
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.3);
    z-index: 10002;
    animation: slideIn 0.3s ease;
}

@keyframes slideIn {
    from {
        transform: translateX(100%);
        opacity: 0;
    }
    to {
        transform: translateX(0);
        opacity: 1;
    }
}

.toast-success { border-left: 4px solid var(--success); }
.toast-error { border-left: 4px solid var(--danger); }
.toast-warning { border-left: 4px solid var(--warning); }

/* ========================================
   UNIFIED COMPONENT STYLES v3.0
   ======================================== */

/* Standard Grid Layout */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(350px, 1fr));
    gap: 20px;
}

.full-width { grid-column: 1 / -1; }

/* Card Styles - Bloomberg Terminal */
.card {
    background: var(--dark-card);
    border: 1px solid var(--dark-border);
    border-radius: 12px;
    padding: 24px;
}

.card h2, .card-title {
    font-size: 16px;
    font-weight: 600;
    margin-bottom: 16px;
    display: flex;
    align-items: center;
    gap: 10px;
    color: var(--text-primary);
}

.card h2 .icon, .card-icon {
    font-size: 20px;
}

/* Status Rows */
.status-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 12px 0;
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
    font-size: 14px;
}

.status-row:last-child { border-bottom: none; }
.status-label { color: var(--text-secondary); }
.status-value { font-weight: 600; color: var(--text-primary); }
.status-online, .online { color: var(--success); }
.status-offline, .offline { color: var(--danger); }

/* Info Banner */
.info-banner {
    background: rgba(0, 137, 161, 0.1);
    border: 1px solid var(--primary-dark);
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 24px;
}

.info-banner h3 { color: var(--primary); margin-bottom: 10px; font-size: 16px; }
.info-banner p { color: var(--text-secondary); font-size: 14px; line-height: 1.6; }

/* Warning/Error Banner */
.warning-banner {
    background: var(--warning-bg);
    border: 1px solid var(--warning);
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 20px;
    color: var(--warning);
    font-size: 14px;
}

.error-banner {
    background: var(--danger-bg);
    border: 1px solid var(--danger);
    border-radius: 12px;
    padding: 16px 20px;
    margin-bottom: 20px;
    color: var(--danger);
    font-size: 14px;
}

/* Button Groups */
.btn-group {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.btn-sm {
    padding: 8px 14px;
    font-size: 13px;
}

.btn-lg {
    padding: 14px 28px;
    font-size: 16px;
}

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

.btn-outline:hover {
    background: rgba(0, 137, 161, 0.1);
}

/* Refresh Button */
.refresh-btn {
    background: rgba(0, 137, 161, 0.1);
    color: var(--primary);
    padding: 10px 20px;
    border-radius: 8px;
    border: none;
    cursor: pointer;
    font-weight: 600;
    font-size: 14px;
    transition: all 0.2s;
}

.refresh-btn:hover {
    background: rgba(0, 137, 161, 0.2);
}

/* Empty State / Loading */
.empty-state, .loading-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-secondary);
}

.empty-state .icon, .loading-state .icon {
    font-size: 48px;
    margin-bottom: 16px;
    opacity: 0.5;
}

/* Signals Table */
.signals-table {
    width: 100%;
    border-collapse: collapse;
}

.signals-table th {
    background: rgba(0, 137, 161, 0.1);
    color: var(--primary);
    padding: 14px 16px;
    text-align: left;
    font-weight: 600;
    font-size: 13px;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.signals-table td {
    padding: 14px 16px;
    border-bottom: 1px solid var(--dark-border);
}

.signals-table tr:hover {
    background: rgba(255, 255, 255, 0.02);
}

/* Stat Cards in Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 16px;
    margin-bottom: 24px;
}

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

.stat-card .label {
    font-size: 12px;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
    margin-bottom: 8px;
}

.stat-card .value {
    font-size: 28px;
    font-weight: 700;
    color: var(--text-primary);
}

.stat-card .value.positive { color: var(--success); }
.stat-card .value.negative { color: var(--danger); }

/* Toggle Switch */
.toggle-switch {
    position: relative;
    width: 50px;
    height: 26px;
    background: var(--dark-border);
    border-radius: 13px;
    cursor: pointer;
    transition: all 0.3s;
}

.toggle-switch.active {
    background: var(--primary);
}

.toggle-switch::after {
    content: '';
    position: absolute;
    width: 22px;
    height: 22px;
    background: white;
    border-radius: 50%;
    top: 2px;
    left: 2px;
    transition: all 0.3s;
}

.toggle-switch.active::after {
    left: 26px;
}

/* Progress Bar */
.progress-bar {
    height: 8px;
    background: var(--dark-border);
    border-radius: 4px;
    overflow: hidden;
}

.progress-bar .fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary) 0%, var(--primary-light) 100%);
    border-radius: 4px;
    transition: width 0.3s;
}

/* Score Circle */
.score-circle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 700;
    font-size: 18px;
    border: 3px solid currentColor;
}

.score-circle.bullish { color: var(--success); background: var(--success-bg); }
.score-circle.bearish { color: var(--danger); background: var(--danger-bg); }
.score-circle.neutral { color: var(--warning); background: var(--warning-bg); }

/* Tabs */
.tabs {
    display: flex;
    gap: 4px;
    background: var(--dark-card);
    padding: 4px;
    border-radius: 10px;
    margin-bottom: 20px;
}

.tab {
    padding: 10px 20px;
    border-radius: 8px;
    font-weight: 600;
    font-size: 14px;
    cursor: pointer;
    background: transparent;
    color: var(--text-secondary);
    border: none;
    transition: all 0.2s;
}

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

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

/* No Data Placeholder */
.no-data {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-muted);
}

.no-data .icon {
    font-size: 64px;
    margin-bottom: 20px;
    opacity: 0.3;
}

.no-data p {
    font-size: 16px;
}

/* Responsive Adjustments */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        text-align: center;
    }

    .header h1 {
        font-size: 22px;
    }

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

    .stats-grid {
        grid-template-columns: repeat(2, 1fr);
    }
}