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

:root {
    --bg: #0a0e27;
    --surface: #151932;
    --surface-2: #1e2239;
    --accent: #00d4ff;
    --success: #00ff88;
    --warning: #ffd000;
    --danger: #ff4757;
    --text: #e8eaed;
    --text-dim: #8b92a7;
}

body {
    font-family: 'Segoe UI', system-ui, sans-serif;
    background: linear-gradient(135deg, var(--bg) 0%, #0f1129 100%);
    color: var(--text);
    min-height: 100vh;
    padding: 20px;
}

.container {
    max-width: 1400px;
    margin: 0 auto;
}

/* Header */
header {
    text-align: center;
    margin-bottom: 30px;
    padding: 30px 20px;
    background: var(--surface);
    border-radius: 16px;
    border: 1px solid rgba(255, 255, 255, 0.1);
}

h1 {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--accent), var(--success));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    margin-bottom: 8px;
}

.subtitle {
    color: var(--text-dim);
    font-size: 1.1rem;
    margin-bottom: 20px;
}

.status-bar {
    display: flex;
    justify-content: center;
    align-items: center;
    gap: 30px;
    font-size: 0.9rem;
    color: var(--text-dim);
}

.refresh-controls {
    display: flex;
    align-items: center;
    gap: 8px;
    color: var(--accent);
}

.refresh-controls label {
    font-weight: 600;
}

#refresh-rate {
    padding: 6px 12px;
    background: var(--surface-2);
    border: 1px solid var(--accent);
    color: var(--accent);
    border-radius: 6px;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    outline: none;
}

#refresh-rate:hover {
    background: var(--accent);
    color: var(--bg);
}

.countdown-display {
    font-weight: 600;
    min-width: 50px;
}

/* Tabs */
.tabs {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    background: var(--surface);
    padding: 10px;
    border-radius: 12px;
}

.tab-btn {
    flex: 1;
    padding: 15px 25px;
    background: transparent;
    border: none;
    color: var(--text-dim);
    font-size: 1rem;
    font-weight: 600;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s;
}

.tab-btn:hover {
    background: var(--surface-2);
    color: var(--text);
}

.tab-btn.active {
    background: var(--accent);
    color: var(--bg);
}

/* Tab Panels */
.tab-content {
    position: relative;
}

.tab-panel {
    display: none;
}

.tab-panel.active {
    display: block;
}

.panel-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
    padding: 20px;
    background: var(--surface);
    border-radius: 12px;
}

.panel-header h2 {
    font-size: 1.5rem;
}

.note {
    color: var(--text-dim);
    font-size: 0.9rem;
}

/* Filters */
.filters {
    display: flex;
    gap: 8px;
}

.filter-btn {
    padding: 8px 16px;
    background: var(--surface-2);
    border: 1px solid rgba(255, 255, 255, 0.1);
    color: var(--text-dim);
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.9rem;
    transition: all 0.2s;
}

.filter-btn:hover {
    background: var(--surface);
}

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

/* Signals Grid */
.signals-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
    gap: 20px;
}

.signal-card {
    background: var(--surface);
    border-radius: 12px;
    padding: 20px;
    border: 1px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s;
    position: relative;
    overflow: hidden;
}

.signal-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: var(--accent);
}

.signal-card.buy::before {
    background: var(--success);
}

.signal-card.sell::before {
    background: var(--danger);
}

.signal-card.hold::before {
    background: var(--warning);
}

.signal-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 212, 255, 0.2);
}

.signal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 15px;
}

.signal-name {
    font-size: 1.3rem;
    font-weight: 700;
}

.signal-badge {
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 0.85rem;
    font-weight: 700;
    text-transform: uppercase;
}

.signal-badge.buy {
    background: rgba(0, 255, 136, 0.15);
    color: var(--success);
}

.signal-badge.sell {
    background: rgba(255, 71, 87, 0.15);
    color: var(--danger);
}

.signal-badge.hold {
    background: rgba(255, 208, 0, 0.15);
    color: var(--warning);
}

.signal-price {
    font-size: 1.8rem;
    font-weight: 700;
    margin-bottom: 8px;
}

.signal-change {
    font-size: 1rem;
    font-weight: 600;
    margin-bottom: 15px;
}

.signal-change.positive {
    color: var(--success);
}

.signal-change.negative {
    color: var(--danger);
}

.signal-indicators {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    padding-top: 15px;
    border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.indicator {
    font-size: 0.85rem;
}

.indicator-label {
    color: var(--text-dim);
    margin-bottom: 4px;
}

.indicator-value {
    font-weight: 700;
    font-size: 1rem;
}

.loading {
    text-align: center;
    padding: 60px 20px;
    color: var(--text-dim);
    font-size: 1.1rem;
}

.error {
    text-align: center;
    padding: 60px 20px;
    color: var(--danger);
    background: var(--surface);
    border-radius: 12px;
    border: 1px solid var(--danger);
}

/* Responsive */
@media (max-width: 768px) {
    h1 {
        font-size: 1.8rem;
    }
    
    .signals-grid {
        grid-template-columns: 1fr;
    }
    
    .tabs {
        flex-direction: column;
    }
    
    .panel-header {
        flex-direction: column;
        gap: 15px;
        align-items: flex-start;
    }
}

/* Modal */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(4px);
    overflow-y: auto;
    padding: 20px;
}

.modal.active {
    display: flex;
    align-items: flex-start;
    justify-content: center;
}

.modal-content {
    background: var(--surface);
    border-radius: 16px;
    max-width: 1000px;
    width: 100%;
    position: relative;
    margin: 40px auto;
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
}

.modal-close {
    position: absolute;
    right: 20px;
    top: 20px;
    background: var(--surface-2);
    border: none;
    color: var(--text);
    font-size: 2rem;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    cursor: pointer;
    transition: all 0.2s;
    z-index: 10;
}

.modal-close:hover {
    background: var(--danger);
    transform: rotate(90deg);
}

#modal-body {
    padding: 40px;
}

.detail-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 30px;
    padding-bottom: 20px;
    border-bottom: 2px solid rgba(255, 255, 255, 0.1);
}

.detail-title {
    font-size: 2rem;
    font-weight: 700;
}

.detail-price {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--accent);
}

.detail-sections {
    display: grid;
    gap: 20px;
}

.detail-section {
    background: var(--surface-2);
    padding: 20px;
    border-radius: 12px;
    border: 1px solid rgba(255, 255, 255, 0.05);
}

.section-title {
    font-size: 1.2rem;
    font-weight: 700;
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 10px;
}

.section-title-icon {
    font-size: 1.4rem;
}

.reasoning-item {
    padding: 12px;
    margin-bottom: 10px;
    background: var(--bg);
    border-radius: 8px;
    border-left: 3px solid var(--accent);
}

.reasoning-item.positive {
    border-left-color: var(--success);
}

.reasoning-item.negative {
    border-left-color: var(--danger);
}

.reasoning-item.neutral {
    border-left-color: var(--warning);
}

.news-item {
    padding: 15px;
    margin-bottom: 12px;
    background: var(--bg);
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.2s;
}

.news-item:hover {
    background: var(--surface);
    transform: translateX(5px);
}

.news-title {
    font-weight: 600;
    margin-bottom: 5px;
    color: var(--accent);
}

.news-meta {
    font-size: 0.85rem;
    color: var(--text-dim);
    display: flex;
    gap: 15px;
}

.sentiment-bar {
    display: flex;
    height: 30px;
    border-radius: 6px;
    overflow: hidden;
    margin: 15px 0;
}

.sentiment-positive {
    background: var(--success);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg);
    font-weight: 700;
    font-size: 0.85rem;
}

.sentiment-neutral {
    background: var(--warning);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg);
    font-weight: 700;
    font-size: 0.85rem;
}

.sentiment-negative {
    background: var(--danger);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--bg);
    font-weight: 700;
    font-size: 0.85rem;
}

.indicators-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 15px;
    margin-top: 15px;
}

.indicator-box {
    background: var(--bg);
    padding: 15px;
    border-radius: 8px;
    text-align: center;
}

.indicator-box-label {
    font-size: 0.85rem;
    color: var(--text-dim);
    margin-bottom: 8px;
}

.indicator-box-value {
    font-size: 1.5rem;
    font-weight: 700;
}

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

.signal-card {
    animation: fadeIn 0.3s ease-out;
    cursor: pointer;
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: scale(0.9);
    }
    to {
        opacity: 1;
        transform: scale(1);
    }
}

.modal.active .modal-content {
    animation: modalSlideIn 0.3s ease-out;
}