:root {
    --bg-color: #0b0e14;
    --card-bg: #151a24;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --border-color: #1e293b;
    --up-color: #10b981;
    --down-color: #ef4444;
    --stable-color: #3b82f6;
    --unclear-color: #64748b;
    --accent-color: #6366f1;
}

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

body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-primary);
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 0.5rem 1.5rem;
    background-color: var(--card-bg);
    border-bottom: 1px solid var(--border-color);
    height: 60px;
}

.header-left {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

h1 {
    font-size: 1.5rem;
    font-weight: 700;
    color: #fff;
    margin: 0;
}

.price-box {
    font-size: 1.5rem;
    font-weight: 700;
    font-variant-numeric: tabular-nums;
}

.status-indicator {
    width: 12px;
    height: 12px;
    border-radius: 50%;
    background-color: var(--unclear-color);
}
.status-indicator.connected { background-color: var(--up-color); box-shadow: 0 0 8px var(--up-color); }
.status-indicator.disconnected { background-color: var(--down-color); box-shadow: 0 0 8px var(--down-color); }

.header-center {
    display: flex;
    gap: 2rem;
}

.metric {
    display: flex;
    flex-direction: column;
    font-size: 0.85rem;
}

.metric span {
    color: var(--text-secondary);
}

.metric strong {
    font-size: 1.1rem;
    font-weight: 600;
}

.btn-icon {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.5rem 1rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
    transition: all 0.2s;
}

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

main {
    flex: 1;
    display: flex;
    flex-direction: column;
    padding: 1rem 1.5rem;
    gap: 1rem;
    overflow: hidden;
    min-height: 0;
}

.cards-container {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 1rem;
    flex: 1.2;
    min-height: 0;
}

.signal-card {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transition: transform 0.2s, box-shadow 0.2s;
}
.signal-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 20px rgba(0,0,0,0.3);
}

.card-header {
    background-color: rgba(255,255,255,0.02);
    padding: 0.75rem 1rem;
    font-weight: 600;
    border-bottom: 1px solid var(--border-color);
    text-align: center;
    color: var(--text-secondary);
}

.card-body {
    flex: 1;
    padding: 0.5rem;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 0.2rem;
    min-height: 0;
}

.main-signal {
    font-size: 4.5rem;
    line-height: 1;
    margin-bottom: 0.5rem;
    text-shadow: 0 0 15px currentColor;
}
.main-signal.up { color: var(--up-color); }
.main-signal.down { color: var(--down-color); }
.main-signal.stable { color: var(--stable-color); }
.main-signal.unclear { color: var(--unclear-color); }

.signal-text {
    font-size: 1rem;
    font-weight: 700;
}

.confidence {
    font-size: 0.85rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

.reasons {
    font-size: 0.75rem;
    color: var(--text-secondary);
    text-align: center;
    margin: 0.5rem 0;
    min-height: 2rem;
    display: flex;
    align-items: center;
}

.scores {
    width: 100%;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.score-bar {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.8rem;
}

.score-label {
    width: 45px;
    color: var(--text-secondary);
}

.bar-bg {
    flex: 1;
    height: 6px;
    background-color: rgba(255,255,255,0.05);
    border-radius: 3px;
    overflow: hidden;
}

.bar-fill {
    height: 100%;
    width: 0%;
    border-radius: 3px;
    transition: width 0.3s ease;
}
.bar-fill.up { background-color: var(--up-color); }
.bar-fill.down { background-color: var(--down-color); }
.bar-fill.stable { background-color: var(--stable-color); }

.score-val {
    width: 25px;
    text-align: right;
    font-variant-numeric: tabular-nums;
}

.metrics-grid {
    display: flex;
    justify-content: center;
    gap: 0.8rem;
    margin-top: 0.75rem;
    padding-top: 0.75rem;
    border-top: 1px dashed rgba(255,255,255,0.1);
}

.m-icon-box {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 0.65rem;
    color: var(--text-secondary);
    text-align: center;
    line-height: 1.2;
}

.m-icon {
    font-size: 1.1rem;
    margin-bottom: 0.2rem;
    text-shadow: 0 0 5px currentColor;
}
.m-icon.up { color: var(--up-color); }
.m-icon.down { color: var(--down-color); }
.m-icon.stable { color: var(--stable-color); }

.card-footer {
    display: flex;
    justify-content: space-around;
    padding: 0.75rem;
    background-color: rgba(255,255,255,0.02);
    border-top: 1px solid var(--border-color);
}

.stat {
    display: flex;
    flex-direction: column;
    align-items: center;
    font-size: 0.75rem;
}
.stat span { color: var(--text-secondary); }
.stat strong { font-size: 0.95rem; }

.bottom-section {
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex: 1;
    min-height: 0;
}

.chart-container, .table-container {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 12px;
    padding: 0.8rem;
    display: flex;
    flex-direction: column;
    min-height: 250px;
    flex: 1;
}

.chart-container h3, .table-container h3 {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-weight: 600;
}

.chart-container canvas {
    width: 100% !important;
    height: 100% !important;
}

.table-wrapper {
    flex: 1;
    overflow-y: auto;
}

table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.8rem;
}

th, td {
    padding: 0.4rem;
    text-align: left;
    border-bottom: 1px solid rgba(255,255,255,0.05);
}

th {
    color: var(--text-secondary);
    position: sticky;
    top: 0;
    background-color: var(--card-bg);
}

td.up { color: var(--up-color); }
td.down { color: var(--down-color); }
td.stable { color: var(--stable-color); }
td.unclear { color: var(--unclear-color); }

/* Modal */
.modal {
    display: none;
    position: fixed;
    top: 0; left: 0; width: 100%; height: 100%;
    background-color: rgba(0,0,0,0.7);
    z-index: 1000;
    align-items: center;
    justify-content: center;
}

.modal.active {
    display: flex;
}

.modal-content {
    background-color: var(--card-bg);
    padding: 2rem;
    border-radius: 12px;
    width: 400px;
    border: 1px solid var(--border-color);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.modal-content h2 {
    margin-bottom: 1.5rem;
}

.form-group {
    margin-bottom: 1rem;
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
}

.form-group label {
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.form-group input, .form-group select {
    padding: 0.6rem;
    border-radius: 6px;
    border: 1px solid var(--border-color);
    background-color: var(--bg-color);
    color: var(--text-primary);
}

.form-group-checkbox {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    margin-bottom: 1rem;
}

.danger-zone {
    margin-top: 1.5rem;
    padding-top: 1rem;
    border-top: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.btn-danger {
    background-color: transparent;
    border: 1px solid var(--down-color);
    color: var(--down-color);
    padding: 0.5rem;
    border-radius: 6px;
    cursor: pointer;
}
.btn-danger:hover {
    background-color: rgba(239, 68, 68, 0.1);
}

.modal-actions {
    display: flex;
    justify-content: flex-end;
    gap: 1rem;
    margin-top: 1.5rem;
}

.btn-primary {
    background-color: var(--accent-color);
    border: none;
    color: #fff;
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    cursor: pointer;
    font-weight: 600;
}

.btn-secondary {
    background-color: transparent;
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 0.6rem 1.2rem;
    border-radius: 6px;
    cursor: pointer;
}

/* Scrollbar */
::-webkit-scrollbar {
    width: 6px;
}
::-webkit-scrollbar-track {
    background: transparent;
}
::-webkit-scrollbar-thumb {
    background: var(--border-color);
    border-radius: 3px;
}

@media (max-width: 1200px) {
    .cards-container {
        grid-template-columns: repeat(2, 1fr);
        height: auto;
    }
    .bottom-section {
        grid-template-columns: 1fr;
        height: auto;
    }
    main {
        overflow-y: auto;
    }
    body {
        height: auto;
        overflow-y: auto;
    }
}