:root {
    --bg-color: #ffffff;
    --card-bg: #ffffff;
    --card-border: #e5e7eb;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --accent-up: #ef4444; /* 한국 시장 상승은 빨간색, 하지만 미국은 초록색. 우선은 일괄적으로 기존 유지하되 밝게. 기존: up=3fb950, down=f85149 */
    --accent-up: #ef4444; /* Let's keep it clear: in Korea up is red, down is blue. But existing was green/red. Let's just use existing logic but adjust brightness */
}

/* Override up/down colors to match typical stock app (Up: Red, Down: Blue in KR) or Up: Green, Down: Red in US.
   Let's stick to the existing green=up, red=down for consistency unless asked.
   Actually, the user asked to change to light mode. I will use standard green/red.
*/
:root {
    --bg-color: #ffffff;
    --card-bg: #ffffff;
    --card-border: #e5e7eb;
    --text-primary: #111827;
    --text-secondary: #6b7280;
    --up-kr: #dc2626; /* 한국 상승: 빨강 */
    --down-kr: #2563eb; /* 한국 하락: 파랑 */
    --up-us: #16a34a; /* 미국 상승: 초록 */
    --down-us: #dc2626; /* 미국 하락: 빨강 */
    --accent-neutral: #6b7280;
    --glass-blur: blur(16px);
}

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

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg-color);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.5;
}

.dashboard-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

header {
    text-align: center;
    margin-bottom: 4rem;
}

header h1 {
    font-size: 3.5rem;
    font-weight: 700;
    background: linear-gradient(90deg, #7928CA, #FF0080);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 0.5rem;
    letter-spacing: -0.03em;
}

header p {
    color: var(--text-secondary);
    font-size: 1.2rem;
    font-weight: 500;
}

.market-section {
    margin-bottom: 4rem;
}

.market-section h2 {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
    padding-bottom: 0.5rem;
    border-bottom: 1px solid var(--card-border);
    color: var(--text-primary);
    font-weight: 600;
}

.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
    gap: 1.5rem;
}

.card {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    transition: transform 0.3s cubic-bezier(0.4, 0, 0.2, 1), box-shadow 0.3s ease;
    display: flex;
    flex-direction: column;
}

.card:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -2px rgba(0, 0, 0, 0.05);
    border-color: #d1d5db;
}

.card-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 0.5rem;
}

.card-title {
    font-size: 1.15rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-price {
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.25rem;
    font-variant-numeric: tabular-nums;
}

.card-change {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 1.5rem;
}

.up { color: var(--up-kr); }
.down { color: var(--down-kr); }
.up-kr { color: var(--up-kr); }
.down-kr { color: var(--down-kr); }
.up-us { color: var(--up-us); }
.down-us { color: var(--down-us); }
.neutral { color: var(--accent-neutral); }

.chart-container {
    flex-grow: 1;
    position: relative;
    height: 100px;
    width: 100%;
}

.table-container {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    overflow-x: auto;
    padding: 1rem;
}

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

th, td {
    padding: 1.25rem;
    text-align: left;
    border-bottom: 1px solid var(--card-border);
}

th {
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 0.85rem;
    letter-spacing: 0.05em;
    background: transparent;
}

tbody tr {
    transition: background-color 0.2s ease;
}

tbody tr:hover {
    background-color: #f3f4f6;
}

.high-volume-row {
    background-color: #f0fdf4 !important; /* Tailwind green-50 */
}

.high-volume-row:hover {
    background-color: #dcfce7 !important; /* Tailwind green-100 */
}

.loading-skeleton {
    animation: pulse 1.5s infinite ease-in-out;
    background: #f3f4f6;
    border-radius: 16px;
    height: 180px;
}

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

.tradingview-widget-container__widget {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* --- Sector Board Styles --- */
.controls-group {
    display: flex;
    gap: 12px;
}

.premium-btn {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    font-family: inherit;
    padding: 8px 16px;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    transition: all 0.2s ease;
    display: flex;
    align-items: center;
    gap: 8px;
}

.premium-btn:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.05);
    color: var(--text-primary);
}

.premium-btn.primary {
    background: var(--text-primary);
    color: #fff;
    border: none;
}

.premium-btn.primary:hover {
    background: #1f2937;
}

.board-container {
    display: grid;
    grid-template-columns: repeat(5, 1fr);
    gap: 1.5rem;
    margin-top: 1rem;
}

.board-column {
    display: flex;
    flex-direction: column;
    gap: 1.5rem;
}

.sector-panel {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.sector-header {
    padding: 12px 16px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    border-bottom: 1px solid var(--card-border);
    background: #fdf6e3; /* Soft amber/yellow background for sector headers */
}

.sector-name {
    font-size: 1rem;
    font-weight: 700;
    color: var(--text-primary);
}

.sector-val {
    font-family: monospace;
    font-size: 0.9rem;
    font-weight: 700;
}

.theme-list {
    display: flex;
    flex-direction: column;
}

.theme-row {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 16px;
    border-bottom: 1px solid #f8fafc;
    transition: background 0.2s ease;
}

.theme-row:last-child {
    border-bottom: none;
}

.theme-row:hover {
    background: #f3f4f6;
}

.theme-name {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-secondary);
    display: flex;
    align-items: center;
    gap: 6px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.theme-val {
    font-family: monospace;
    font-size: 0.85rem;
    font-weight: 600;
    margin-left: 10px;
}

/* Data Modifiers for US (Green for positive, Red for negative) */
.val-pos { color: var(--up-us); }
.val-neg { color: var(--down-us); }
.val-neu { color: var(--accent-neutral); }

.row-pos-strong {
    background: var(--up-us) !important;
    color: #ffffff !important;
}
.row-pos-strong .theme-name, 
.row-pos-strong .theme-val {
    color: #ffffff !important;
}

.row-neg-strong {
    background: var(--down-us) !important;
    color: #ffffff !important;
}
.row-neg-strong .theme-name, 
.row-neg-strong .theme-val {
    color: #ffffff !important;
}

.indicator {
    font-size: 0.8em;
    opacity: 0.8;
}

/* Responsive */
@media (max-width: 1400px) { .board-container { grid-template-columns: repeat(4, 1fr); } }
@media (max-width: 1100px) { .board-container { grid-template-columns: repeat(3, 1fr); } }
@media (max-width: 768px) {
    .board-container { grid-template-columns: repeat(2, 1fr); }
}
@media (max-width: 480px) {
    .board-container { grid-template-columns: 1fr; }
}

/* --- Tabs Styles --- */
.tabs-container {
    display: flex;
    justify-content: center;
    gap: 1rem;
    margin-bottom: 2rem;
}

.tab-btn {
    background: transparent;
    border: 2px solid var(--card-border);
    color: var(--text-secondary);
    padding: 0.75rem 2rem;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 9999px;
    cursor: pointer;
    transition: all 0.3s ease;
    font-family: 'Inter', sans-serif;
}

.tab-btn:hover {
    border-color: #d1d5db;
    color: var(--text-primary);
}

.tab-btn.active {
    background: var(--text-primary);
    border-color: var(--text-primary);
    color: #ffffff;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
}

.market-section {
    display: none;
    animation: fadeIn 0.4s ease forwards;
}

.market-section.active {
    display: block;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

/* --- Chart Section Styles --- */
.search-container {
    position: relative;
    max-width: 600px;
    margin: 0 auto 1rem auto;
}

#symbol-search-input {
    width: 100%;
    padding: 12px 45px 12px 20px;
    font-size: 1rem;
    border: 2px solid var(--card-border);
    border-radius: 9999px;
    outline: none;
    transition: all 0.2s ease;
    background: var(--card-bg);
    color: var(--text-primary);
    font-family: 'Inter', sans-serif;
}

.search-icon {
    position: absolute;
    right: 18px;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    align-items: center;
    justify-content: center;
    pointer-events: none;
}

.search-icon svg {
    width: 18px;
    height: 18px;
    color: var(--text-secondary);
}

#symbol-search-input:focus {
    border-color: #3b82f6;
    box-shadow: 0 0 0 3px rgba(59, 130, 246, 0.1);
}

.search-results {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 12px;
    box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
    z-index: 50;
    max-height: 300px;
    overflow-y: auto;
    display: none;
}

.search-results.active {
    display: block;
}

.search-result-item {
    padding: 12px 16px;
    cursor: pointer;
    border-bottom: 1px solid var(--card-border);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

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

.search-result-item:hover, .search-result-item.selected {
    background: #f3f4f6;
}

.search-result-symbol {
    font-weight: 700;
    color: var(--text-primary);
}

.search-result-desc {
    font-size: 0.85rem;
    color: var(--text-secondary);
    margin-left: 10px;
}

.search-result-exchange {
    font-size: 0.75rem;
    padding: 2px 6px;
    background: #e5e7eb;
    border-radius: 4px;
    color: var(--text-secondary);
}

.symbol-manager {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    justify-content: center;
    margin-top: 1rem;
}

.symbol-chip {
    display: inline-flex;
    align-items: center;
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    padding: 6px 12px;
    border-radius: 9999px;
    font-size: 0.9rem;
    font-weight: 600;
    box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
    transition: all 0.2s ease;
}

.symbol-chip.active {
    background: #fef9c3; /* Light yellow */
    border-color: #facc15; /* Yellow border */
    color: #854d0e; /* Dark brown text */
}

.symbol-chip .chip-name {
    margin-right: 8px;
    cursor: pointer;
}

.symbol-chip .chip-name:hover {
    text-decoration: underline;
}

.symbol-chip-del {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1rem;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 50%;
    width: 20px;
    height: 20px;
    transition: all 0.2s ease;
}

.symbol-chip-del:hover {
    background: #fee2e2;
    color: #ef4444;
}

/* Centering TradingView Widget */
#tv-widget-inner {
    display: flex;
    justify-content: center;
    align-items: center;
}

/* --- 5/3 추가: 미국 주식 상승률 순위 --- */
.us-top-stocks-container {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    border-radius: 16px;
    padding: 1.5rem;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.exchange-tabs {
    display: flex;
    gap: 0.5rem;
}

.exchange-btn {
    border-radius: 9999px;
    padding: 6px 16px;
    font-size: 0.85rem;
    background: transparent;
    border: 1px solid var(--card-border);
}

.exchange-btn.active {
    background: var(--text-primary);
    color: #fff;
    border-color: var(--text-primary);
}

.premium-table th.sortable {
    user-select: none;
    transition: color 0.2s;
}

.premium-table th.sortable:hover {
    color: var(--text-primary);
}

.sort-icon::after {
    content: " \2195"; /* Up/Down arrow */
    opacity: 0.3;
    font-size: 0.9em;
}

.sortable.asc .sort-icon::after {
    content: " \2191"; /* Up arrow */
    opacity: 1;
    color: var(--text-primary);
}

.sortable.desc .sort-icon::after {
    content: " \2193"; /* Down arrow */
    opacity: 1;
    color: var(--text-primary);
}

.premium-table tbody tr {
    cursor: pointer;
}

.mini-chart-canvas {
    width: 100px;
}
/* Sort Pill Buttons Style */
.sort-tabs {
    display: flex;
    gap: 0.5rem;
}

.sort-pill-btn {
    background: var(--card-bg);
    border: 1px solid var(--card-border);
    color: var(--text-secondary);
    padding: 6px 16px;
    font-size: 0.9rem;
    font-weight: 600;
    border-radius: 9999px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.sort-pill-btn:hover {
    border-color: #d1d5db;
    color: var(--text-primary);
}

.sort-pill-btn.active {
    background: var(--text-primary);
    border-color: var(--text-primary);
    color: #ffffff;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

/* Exchange Tab Style (Segmented Control) */
.exchange-tabs-row {
    display: flex;
    width: 100%;
    background: #f3f4f6;
    padding: 4px;
    border-radius: 12px;
}

.exchange-tab-item {
    flex: 1;
    background: transparent;
    border: none;
    padding: 8px 0;
    font-size: 0.95rem;
    font-weight: 600;
    color: var(--text-secondary);
    cursor: pointer;
    border-radius: 8px;
    transition: all 0.2s ease;
    text-align: center;
}

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

.exchange-tab-item.active {
    color: var(--text-primary);
    background: #ffffff;
    box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
}