/* Modern Apple-like Tech Aesthetic Variables */
:root {
    --bg-base: #fbfbfd;
    --text-primary: #1d1d1f;
    --text-secondary: #86868b;
    --accent-blue: #0071e3;
    --accent-green: #34c759;
    --accent-red: #ff3b30;
    
    --glass-bg: rgba(255, 255, 255, 0.7);
    --glass-border: rgba(255, 255, 255, 0.5);
    --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.04);
    
    --transition-smooth: all 0.5s cubic-bezier(0.25, 1, 0.5, 1);
}

/* Dark Mode Query Support */
@media (prefers-color-scheme: dark) {
    :root {
        --bg-base: #000000;
        --text-primary: #f5f5f7;
        --text-secondary: #86868b;
        --accent-blue: #2997ff;
        
        --glass-bg: rgba(28, 28, 30, 0.6);
        --glass-border: rgba(255, 255, 255, 0.08);
        --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    }
    
    body {
        background: radial-gradient(circle at top right, #1d1d27, #000000) !important;
    }
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'PingFang SC', 'Hiragino Sans GB', 'Microsoft YaHei', 'Helvetica Neue', sans-serif;
    -webkit-font-smoothing: antialiased;
}

body {
    background: var(--bg-base);
    color: var(--text-primary);
    min-height: 100vh;
    overflow-x: hidden;
    /* Soft mesh gradient background for premium feel */
    background: radial-gradient(circle at top right, #e2eafc, #fbfbfd 60%);
}

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

/* Sidebar */
.sidebar {
    width: 240px;
    background: var(--glass-bg);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--glass-border);
    padding: 2rem 0;
    display: flex;
    flex-direction: column;
    z-index: 10;
}

.logo {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 0 24px;
    font-weight: 600;
    font-size: 1.1rem;
    letter-spacing: -0.5px;
    margin-bottom: 2.5rem;
    color: var(--text-primary);
}

.nav-menu {
    display: flex;
    flex-direction: column;
    gap: 4px;
    padding: 0 12px;
}

.nav-item {
    text-decoration: none;
    color: var(--text-secondary);
    padding: 10px 16px;
    border-radius: 8px;
    font-size: 0.95rem;
    font-weight: 500;
    transition: var(--transition-smooth);
}

.nav-item:hover {
    background: rgba(134, 134, 139, 0.1);
    color: var(--text-primary);
    transform: translateX(4px);
}

.nav-item.active {
    background: var(--text-primary);
    color: var(--bg-base);
}

/* Main Content */
.main-content {
    flex: 1;
    overflow-y: auto;
    padding: 2rem 3rem;
}

.top-nav {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 2rem;
}

/* Page title row: title + cutoff badge inline */
.page-title-row {
    display: flex;
    align-items: baseline;
    gap: 16px;
    flex-wrap: wrap;
}

.page-title-row h1 {
    margin: 0;
}

/* Data cutoff date badge */
.data-cutoff-badge {
    font-size: 0.78rem;
    font-weight: 500;
    color: var(--text-secondary);
    background: rgba(0, 113, 227, 0.06);
    border: 1px solid rgba(0, 113, 227, 0.12);
    border-radius: 20px;
    padding: 4px 14px;
    white-space: nowrap;
    line-height: 1.4;
}

/* ============== Info Icon Tooltip ============== */
.info-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 18px;
    height: 18px;
    font-size: 0.72rem;
    font-style: normal;
    color: var(--text-secondary);
    background: rgba(134, 134, 139, 0.08);
    border: 1px solid rgba(134, 134, 139, 0.15);
    border-radius: 50%;
    cursor: help;
    position: relative;
    vertical-align: middle;
    margin-left: 4px;
    transition: all 0.2s;
}

.info-icon:hover {
    color: var(--accent-blue);
    background: rgba(0, 113, 227, 0.08);
    border-color: rgba(0, 113, 227, 0.3);
}

/* Smaller variant for table headers */
.info-icon-sm {
    width: 15px;
    height: 15px;
    font-size: 0.65rem;
}

/* Tooltip popup */
.info-icon::after {
    content: attr(data-tooltip);
    position: absolute;
    bottom: 130%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(28, 28, 30, 0.92);
    color: #f5f5f7;
    font-size: 0.75rem;
    font-weight: 400;
    line-height: 1.5;
    padding: 8px 12px;
    border-radius: 10px;
    width: max-content;
    max-width: 320px;
    white-space: normal;
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
    z-index: 100;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    backdrop-filter: blur(12px);
}

/* Tooltip arrow */
.info-icon::before {
    content: '';
    position: absolute;
    bottom: 120%;
    left: 50%;
    transform: translateX(-50%);
    border: 5px solid transparent;
    border-top-color: rgba(28, 28, 30, 0.92);
    pointer-events: none;
    opacity: 0;
    visibility: hidden;
    transition: opacity 0.2s, visibility 0.2s;
    z-index: 101;
}

.info-icon:hover::after,
.info-icon:hover::before {
    opacity: 1;
    visibility: visible;
}

@media (prefers-color-scheme: dark) {
    .data-cutoff-badge {
        background: rgba(0, 113, 227, 0.1);
        border-color: rgba(0, 113, 227, 0.2);
    }
    .info-icon {
        background: rgba(255, 255, 255, 0.06);
        border-color: rgba(255, 255, 255, 0.1);
    }
    .info-icon::after {
        background: rgba(44, 44, 46, 0.95);
    }
    .info-icon::before {
        border-top-color: rgba(44, 44, 46, 0.95);
    }
}
}


.top-nav h1 {
    font-size: 2rem;
    font-weight: 600;
    letter-spacing: -1px;
}

.header-actions {
    display: flex;
    align-items: center;
    gap: 20px;
}

.btn-refresh {
    background: var(--glass-bg);
    border: 1px solid var(--glass-border);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: 20px;
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    backdrop-filter: blur(10px);
    transition: var(--transition-smooth);
    box-shadow: 0 2px 8px rgba(0,0,0,0.05);
}

.btn-refresh:hover {
    background: var(--text-primary);
    color: var(--bg-base);
    transform: scale(1.05);
}

.user-profile img {
    border-radius: 50%;
    width: 36px;
    height: 36px;
    box-shadow: 0 4px 12px rgba(0,0,0,0.1);
}

/* Glassmorphism Cards */
.glass-card {
    background: var(--glass-bg);
    backdrop-filter: blur(25px);
    -webkit-backdrop-filter: blur(25px);
    border: 1px solid var(--glass-border);
    border-radius: 24px;
    box-shadow: var(--glass-shadow);
    padding: 1.5rem;
    transition: var(--transition-smooth);
}

.glass-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.08);
}

/* Chart header with optional controls */
.chart-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 1rem;
}

.chart-header h2 {
    margin: 0;
}

/* Apple-style Segmented Control */
.segment-control {
    display: inline-flex;
    background: rgba(134, 134, 139, 0.08);
    border-radius: 10px;
    padding: 3px;
    gap: 2px;
}

.segment-btn {
    padding: 5px 16px;
    border: none;
    border-radius: 8px;
    background: transparent;
    color: var(--text-secondary);
    font-size: 0.8rem;
    font-weight: 500;
    cursor: pointer;
    transition: all 0.25s ease;
    font-family: inherit;
}

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

.segment-btn.active {
    background: var(--text-primary);
    color: var(--bg-base);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.12);
}

/* Dashboard Grid */
.dashboard-grid {
    display: flex;
    flex-direction: column;
    gap: 2rem;
}

.metrics-row {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
    gap: 1.5rem;
}

.metric-card {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

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

.metric-card .value {
    font-size: 2.2rem;
    font-weight: 600;
    letter-spacing: -1px;
}

.trend {
    font-size: 0.8rem;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 4px;
}

.trend.positive { color: var(--accent-green); }
.trend.negative { color: var(--accent-red); }
.trend.neutral { color: var(--text-secondary); }

/* Chart Area */
.charts-row {
    display: grid;
    grid-template-columns: 1fr;
}

.chart-container {
    padding: 2rem;
}

.chart-header h2 {
    font-size: 1.2rem;
    font-weight: 600;
    margin-bottom: 20px;
}

/* Animations loading state */
.loading {
    opacity: 0.5;
    pointer-events: none;
    animation: pulse 1.5s infinite;
}

@keyframes pulse {
    0% { opacity: 0.5; }
    50% { opacity: 0.8; }
    100% { opacity: 0.5; }
}

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

.metrics-row .metric-card {
    animation: fadeInUp 0.8s cubic-bezier(0.25, 1, 0.5, 1) forwards;
    opacity: 0;
}

.metrics-row .metric-card:nth-child(1) { animation-delay: 0.1s; }
.metrics-row .metric-card:nth-child(2) { animation-delay: 0.2s; }
.metrics-row .metric-card:nth-child(3) { animation-delay: 0.3s; }
.metrics-row .metric-card:nth-child(4) { animation-delay: 0.4s; }
.chart-container {
    animation: fadeInUp 0.8s cubic-bezier(0.25, 1, 0.5, 1) forwards;
    animation-delay: 0.5s;
    opacity: 0;
}

/* Tables for Data Grids */
.table-responsive {
    width: 100%;
    overflow-x: auto;
}

.data-table {
    width: 100%;
    border-collapse: separate;
    border-spacing: 0;
    margin-top: 10px;
}

.data-table th, .data-table td {
    padding: 14px 16px;
    text-align: left;
    border-bottom: 1px solid var(--glass-border);
    font-size: 0.9rem;
}

.data-table th {
    font-weight: 600;
    color: var(--text-secondary);
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.data-table tbody tr {
    transition: background-color 0.2s;
}

.data-table tbody tr:hover {
    background-color: rgba(134, 134, 139, 0.05); /* very subtle hover */
}

.text-center {
    text-align: center !important;
}

/* Rank Badge styling for Repurchase / Matrix Tag */
.badge {
    padding: 4px 10px;
    border-radius: 12px;
    font-size: 0.75rem;
    font-weight: 600;
    display: inline-block;
}
.badge.primary { background: rgba(0, 113, 227, 0.1); color: var(--accent-blue); }
.badge.danger { background: rgba(255, 59, 48, 0.1); color: var(--accent-red); }
.badge.success { background: rgba(52, 199, 89, 0.1); color: var(--accent-green); }
.badge.warning { background: rgba(255, 149, 0, 0.1); color: #ff9500; }

/* ============== Ops Date Picker ============== */
.ops-date-row {
    display: flex;
    align-items: center;
    gap: 12px;
    margin-bottom: 1.25rem;
    padding: 12px 16px;
    border-radius: 12px;
    background: rgba(0, 113, 227, 0.04);
    border: 1px solid rgba(0, 113, 227, 0.1);
}

.ops-date-label {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text-primary);
    white-space: nowrap;
}

.ops-date-input {
    font-family: inherit;
    font-size: 0.88rem;
    padding: 6px 12px;
    border: 1px solid var(--glass-border);
    border-radius: 8px;
    background: var(--glass-bg);
    color: var(--text-primary);
    outline: none;
    transition: border-color 0.3s;
    min-width: 160px;
}

.ops-date-input:focus {
    border-color: var(--accent-blue);
    box-shadow: 0 0 0 3px rgba(0, 113, 227, 0.1);
}

.ops-date-hint {
    font-size: 0.78rem;
    color: var(--text-secondary);
}

@media (prefers-color-scheme: dark) {
    .ops-date-row {
        background: rgba(0, 113, 227, 0.06);
        border-color: rgba(0, 113, 227, 0.15);
    }
    .ops-date-input {
        background: rgba(28, 28, 30, 0.6);
        border-color: rgba(255, 255, 255, 0.1);
    }
}

/* ============== Ops Management Page ============== */
.ops-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1.25rem;
    margin-bottom: 2rem;
}

@media (max-width: 1200px) {
    .ops-grid { grid-template-columns: repeat(3, 1fr); }
}
@media (max-width: 800px) {
    .ops-grid { grid-template-columns: repeat(2, 1fr); }
}

.ops-btn {
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 2rem 1.25rem;
    border: none;
    border-radius: 20px;
    background: linear-gradient(135deg, rgba(255,255,255,0.85) 0%, rgba(240,240,245,0.7) 100%);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    cursor: pointer;
    transition: all 0.4s cubic-bezier(0.25, 1, 0.5, 1);
    color: var(--text-primary);
    box-shadow:
        0 2px 8px rgba(0, 0, 0, 0.04),
        0 8px 24px rgba(0, 0, 0, 0.06),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
    overflow: hidden;
}

.ops-btn::before {
    content: '';
    position: absolute;
    inset: 0;
    border-radius: 20px;
    padding: 1px;
    background: linear-gradient(135deg, rgba(255,255,255,0.6), rgba(255,255,255,0.1));
    -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
    -webkit-mask-composite: xor;
    mask-composite: exclude;
    pointer-events: none;
}

.ops-btn:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow:
        0 8px 20px rgba(0, 0, 0, 0.08),
        0 20px 40px rgba(0, 113, 227, 0.12),
        inset 0 1px 0 rgba(255, 255, 255, 0.9);
}

.ops-btn:active {
    transform: translateY(-2px) scale(0.98);
    transition-duration: 0.1s;
}

.ops-btn-accent {
    background: linear-gradient(135deg, rgba(0, 113, 227, 0.08) 0%, rgba(88, 86, 214, 0.06) 100%);
    box-shadow:
        0 2px 8px rgba(0, 113, 227, 0.08),
        0 8px 24px rgba(0, 113, 227, 0.1),
        inset 0 1px 0 rgba(255, 255, 255, 0.6);
}

.ops-btn-accent:hover {
    box-shadow:
        0 8px 20px rgba(0, 113, 227, 0.15),
        0 20px 40px rgba(88, 86, 214, 0.18),
        inset 0 1px 0 rgba(255, 255, 255, 0.8);
}

@media (prefers-color-scheme: dark) {
    .ops-btn {
        background: linear-gradient(135deg, rgba(44, 44, 46, 0.8) 0%, rgba(28, 28, 30, 0.7) 100%);
        box-shadow:
            0 2px 8px rgba(0, 0, 0, 0.2),
            0 8px 24px rgba(0, 0, 0, 0.3),
            inset 0 1px 0 rgba(255, 255, 255, 0.06);
    }
    .ops-btn::before {
        background: linear-gradient(135deg, rgba(255,255,255,0.1), rgba(255,255,255,0.02));
    }
    .ops-btn:hover {
        box-shadow:
            0 8px 20px rgba(0, 0, 0, 0.3),
            0 20px 40px rgba(0, 113, 227, 0.15),
            inset 0 1px 0 rgba(255, 255, 255, 0.08);
    }
    .ops-btn-accent {
        background: linear-gradient(135deg, rgba(0, 113, 227, 0.15) 0%, rgba(88, 86, 214, 0.1) 100%);
    }
}

.ops-icon {
    font-size: 2.5rem;
    line-height: 1;
    filter: drop-shadow(0 2px 4px rgba(0,0,0,0.1));
}

.ops-label {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -0.3px;
}

.ops-desc {
    font-size: 0.78rem;
    color: var(--text-secondary);
    font-weight: 400;
}

/* Running state - pulsing glow */
.ops-running {
    pointer-events: none;
    animation: opsPulse 1.5s ease-in-out infinite;
}

@keyframes opsPulse {
    0%, 100% { 
        opacity: 0.6;
        box-shadow: 0 0 0 0 rgba(0, 113, 227, 0);
    }
    50% { 
        opacity: 1;
        box-shadow: 0 0 30px rgba(0, 113, 227, 0.2);
    }
}

/* Success state - green glow */
.ops-done {
    background: linear-gradient(135deg, rgba(52, 199, 89, 0.1) 0%, rgba(48, 209, 88, 0.06) 100%) !important;
    box-shadow: 0 0 0 2px rgba(52, 199, 89, 0.4), 0 8px 24px rgba(52, 199, 89, 0.15) !important;
}

/* Error state - red glow */
.ops-error {
    background: linear-gradient(135deg, rgba(255, 59, 48, 0.1) 0%, rgba(255, 69, 58, 0.06) 100%) !important;
    box-shadow: 0 0 0 2px rgba(255, 59, 48, 0.4), 0 8px 24px rgba(255, 59, 48, 0.15) !important;
}

/* Log panel — terminal aesthetic */
.ops-log-container {
    margin-top: 1.5rem;
    padding-top: 1.5rem;
    border-top: 1px solid var(--glass-border);
}

.ops-log-container h3 {
    font-size: 1rem;
    font-weight: 600;
    letter-spacing: -0.3px;
}

.ops-log {
    font-family: 'SF Mono', 'Fira Code', 'Cascadia Code', 'Menlo', 'Consolas', monospace;
    font-size: 0.82rem;
    line-height: 2;
    background: rgba(0, 0, 0, 0.04);
    border-radius: 16px;
    padding: 1.25rem 1.5rem;
    min-height: 80px;
    max-height: 300px;
    overflow-y: auto;
    color: var(--text-secondary);
    border: 1px solid var(--glass-border);
}

@media (prefers-color-scheme: dark) {
    .ops-log {
        background: rgba(255, 255, 255, 0.03);
        border-color: rgba(255, 255, 255, 0.06);
    }
}

.ops-log .log-entry {
    display: block;
    padding: 4px 0;
    border-bottom: 1px solid rgba(134, 134, 139, 0.08);
    animation: logFadeIn 0.3s ease;
}

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

.ops-log .log-entry .log-time {
    color: var(--text-secondary);
    opacity: 0.6;
    margin-right: 8px;
}

.ops-log .log-entry.log-success {
    color: var(--accent-green);
}

.ops-log .log-entry.log-error {
    color: var(--accent-red);
}

.ops-log .log-entry.log-pending {
    color: var(--accent-blue);
}

@keyframes logFadeIn {
    from { opacity: 0; transform: translateY(-4px); }
    to { opacity: 1; transform: translateY(0); }
}