/* ================================================================
   NF-Metals Dashboard – Professional Dark Theme
   ================================================================ */

/* --- CSS Custom Properties ------------------------------------ */
:root {
    --bg-primary: #060a13;
    --bg-secondary: #0c1220;
    --bg-surface: #111827;
    --bg-elevated: #1a2332;
    --bg-hover: #1e293b;
    --border-color: #1e293b;
    --border-light: #2d3a4d;
    --text-primary: #e2e8f0;
    --text-secondary: #94a3b8;
    --text-muted: #64748b;
    --accent-blue: #3b82f6;
    --accent-cyan: #06b6d4;
    --accent-green: #22c55e;
    --accent-red: #ef4444;
    --accent-yellow: #eab308;
    --accent-orange: #f97316;
    --accent-purple: #a855f7;
    --accent-teal: #14b8a6;
    --accent-pink: #ec4899;
    --accent-lime: #84cc16;
    /* Metal category colors */
    --cat-base: #ef4444;
    --cat-precious: #eab308;
    --cat-light: #3b82f6;
    --cat-rare: #a855f7;
    --cat-rare-earth: #14b8a6;
    --cat-scattered: #f97316;
    --cat-ferrous: #6b7280;
    --cat-nonmetal: #334155;
    --cat-noble-gas: #1e3a5f;
    --cat-metalloid: #78350f;
    --cat-halogen: #164e63;
    --cat-actinide: #4c1d95;
    --cat-unknown: #1f2937;
    /* Font */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', monospace;
    /* Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    /* Transition */
    --transition: 0.2s ease;
}

/* --- Reset & Base --------------------------------------------- */
*, *::before, *::after {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

html {
    font-size: 14px;
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    overflow-x: hidden;
}

/* Scrollbar */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: var(--border-light); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--text-muted); }

a { color: var(--accent-cyan); text-decoration: none; }
a:hover { text-decoration: underline; }

/* --- Header --------------------------------------------------- */
#app-header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    height: 52px;
    background: rgba(6, 10, 19, 0.85);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-color);
}

.header-left { display: flex; align-items: center; gap: 12px; }
.header-right { display: flex; align-items: center; gap: 12px; }

.logo {
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo i {
    font-size: 20px;
    color: var(--accent-cyan);
}

.logo-text {
    font-size: 18px;
    font-weight: 700;
    letter-spacing: -0.5px;
    background: linear-gradient(135deg, var(--accent-cyan), var(--accent-blue));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.logo-sub {
    font-size: 11px;
    color: var(--text-muted);
    padding-left: 10px;
    border-left: 1px solid var(--border-color);
}

.header-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-muted);
    padding: 4px 10px;
    border-radius: 20px;
    background: var(--bg-surface);
}

.status-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    display: inline-block;
}
.status-dot.online {
    background: var(--accent-green);
    box-shadow: 0 0 6px var(--accent-green);
}
.status-dot.offline { background: var(--text-muted); }

.header-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-sans);
}
.header-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
    border-color: var(--border-light);
}

/* --- Main ----------------------------------------------------- */
#app-main {
    padding: 16px 24px 32px;
    max-width: 1800px;
    margin: 0 auto;
}

/* --- Section Headers ------------------------------------------ */
.section-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 12px;
}

.section-header h2 {
    font-size: 14px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 1px;
}

/* --- Legend ---------------------------------------------------- */
.legend {
    display: flex;
    align-items: center;
    gap: 14px;
    flex-wrap: wrap;
}
.legend-item {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 10px;
    color: var(--text-muted);
}
.legend-dot {
    width: 10px;
    height: 10px;
    border-radius: 2px;
}

/* --- Periodic Table ------------------------------------------- */
#periodic-table {
    display: grid;
    grid-template-columns: repeat(18, 1fr);
    gap: 3px;
    margin-bottom: 8px;
    user-select: none;
}

.element-cell {
    position: relative;
    aspect-ratio: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    cursor: default;
    transition: all var(--transition);
    border: 1px solid transparent;
    min-width: 0;
    overflow: hidden;
    padding: 2px;
}

.element-cell .el-number {
    font-size: 8px;
    font-family: var(--font-mono);
    color: var(--text-muted);
    line-height: 1;
    position: absolute;
    top: 3px;
    left: 4px;
}

.element-cell .el-symbol {
    font-size: 15px;
    font-weight: 700;
    line-height: 1.1;
}

.element-cell .el-name {
    font-size: 7px;
    color: var(--text-muted);
    line-height: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
}

/* NF-metal cells are interactive */
.element-cell.nf-metal {
    cursor: pointer;
    border: 1px solid rgba(255,255,255,0.06);
}
.element-cell.nf-metal:hover {
    transform: scale(1.15);
    z-index: 10;
    box-shadow: 0 0 20px rgba(0,0,0,0.5);
    border-color: rgba(255,255,255,0.2);
}
.element-cell.nf-metal.selected {
    transform: scale(1.1);
    z-index: 10;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 12px rgba(6, 182, 212, 0.3);
}

/* Non-metal / inert cells */
.element-cell.non-interactive {
    opacity: 0.35;
}

/* Category backgrounds */
.element-cell.cat-base       { background: rgba(239,68,68,0.25); }
.element-cell.cat-precious   { background: rgba(234,179,8,0.25); }
.element-cell.cat-light      { background: rgba(59,130,246,0.22); }
.element-cell.cat-rare       { background: rgba(168,85,247,0.22); }
.element-cell.cat-rare-earth { background: rgba(20,184,166,0.22); }
.element-cell.cat-scattered  { background: rgba(249,115,22,0.22); }
.element-cell.cat-ferrous    { background: rgba(107,114,128,0.18); }
.element-cell.cat-nonmetal   { background: rgba(51,65,85,0.3); }
.element-cell.cat-noble-gas  { background: rgba(30,58,95,0.3); }
.element-cell.cat-metalloid  { background: rgba(120,53,15,0.22); }
.element-cell.cat-halogen    { background: rgba(22,78,99,0.3); }
.element-cell.cat-actinide   { background: rgba(76,29,149,0.22); }
.element-cell.cat-unknown    { background: rgba(31,41,55,0.3); }

/* Lanthanide / Actinide spacer */
.pt-spacer {
    grid-column: 1 / span 2;
    display: flex;
    align-items: center;
    justify-content: flex-end;
    padding-right: 8px;
    font-size: 10px;
    color: var(--text-muted);
    font-style: italic;
}
.pt-gap { height: 8px; grid-column: 1 / -1; }

/* --- Dashboard ------------------------------------------------ */
#element-dashboard {
    margin-top: 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    background: var(--bg-secondary);
    overflow: hidden;
    animation: slideUp 0.3s ease;
}

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

.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-surface);
}

.dash-title {
    display: flex;
    align-items: center;
    gap: 16px;
}

.close-btn {
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-muted);
    cursor: pointer;
    transition: var(--transition);
    font-size: 12px;
}
.close-btn:hover {
    background: var(--accent-red);
    color: white;
    border-color: var(--accent-red);
}

.element-badge {
    display: flex;
    align-items: baseline;
    gap: 8px;
    padding: 6px 14px;
    border-radius: var(--radius-md);
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
}
.badge-number {
    font-size: 11px;
    color: var(--text-muted);
    font-family: var(--font-mono);
}
.badge-symbol {
    font-size: 24px;
    font-weight: 700;
}
.badge-name {
    font-size: 13px;
    color: var(--text-secondary);
}

.element-meta {
    font-size: 12px;
    color: var(--text-muted);
}

.dash-actions {
    display: flex;
    gap: 8px;
}

.action-btn {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 7px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: transparent;
    color: var(--text-secondary);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-sans);
}
.action-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}
.action-btn.primary {
    background: var(--accent-blue);
    color: white;
    border-color: var(--accent-blue);
}
.action-btn.primary:hover {
    background: #2563eb;
}
.action-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}
.action-btn .fa-spin { animation: spin 1s linear infinite; }
@keyframes spin { to { transform: rotate(360deg); } }

/* --- Tabs ----------------------------------------------------- */
.tab-bar {
    display: flex;
    border-bottom: 1px solid var(--border-color);
    background: var(--bg-surface);
    padding: 0 12px;
    overflow-x: auto;
}

.tab {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 12px 18px;
    border: none;
    background: transparent;
    color: var(--text-muted);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    border-bottom: 2px solid transparent;
    white-space: nowrap;
    font-family: var(--font-sans);
}
.tab:hover { color: var(--text-secondary); }
.tab.active {
    color: var(--accent-cyan);
    border-bottom-color: var(--accent-cyan);
}

/* --- Tab Panes ------------------------------------------------ */
.tab-content {
    min-height: 400px;
}
.tab-pane {
    display: none;
    padding: 20px;
}
.tab-pane.active { display: block; }

/* --- Overview Grid -------------------------------------------- */
.overview-grid {
    display: grid;
    grid-template-columns: 1fr 2fr;
    grid-template-rows: auto auto;
    gap: 16px;
}

.card {
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-surface);
    overflow: hidden;
}

.card-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 12px 16px;
    border-bottom: 1px solid var(--border-color);
}
.card-header h3 {
    font-size: 12px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.card-badge {
    font-size: 10px;
    padding: 2px 8px;
    border-radius: 10px;
    background: var(--bg-elevated);
    color: var(--text-muted);
}

.card-body { padding: 16px; }

/* Price display */
.price-display {
    display: flex;
    flex-direction: column;
    gap: 4px;
}
.price-main {
    font-size: 32px;
    font-weight: 700;
    font-family: var(--font-mono);
}
.price-change {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    font-family: var(--font-mono);
}
.price-change.up { color: var(--accent-green); }
.price-change.down { color: var(--accent-red); }
.price-detail {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 8px;
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}
.price-detail-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
}
.price-detail-label {
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
}
.price-detail-value {
    font-size: 14px;
    font-family: var(--font-mono);
    font-weight: 500;
}

/* Chart */
.chart-wrapper {
    height: 240px;
    padding: 12px;
}

.chart-card { grid-column: 2; grid-row: 1 / span 2; }

/* Element properties */
.prop-grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
}
.prop-item {
    display: flex;
    flex-direction: column;
    gap: 2px;
    padding: 8px;
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
}
.prop-label {
    font-size: 10px;
    color: var(--text-muted);
    text-transform: uppercase;
}
.prop-value {
    font-size: 13px;
    font-weight: 500;
    font-family: var(--font-mono);
}

/* Applications */
.app-tag {
    display: inline-block;
    padding: 4px 10px;
    margin: 3px;
    border-radius: 20px;
    background: var(--bg-elevated);
    border: 1px solid var(--border-color);
    font-size: 12px;
    color: var(--text-secondary);
}

.no-data {
    text-align: center;
    padding: 32px;
    color: var(--text-muted);
    font-size: 13px;
}
.no-data i {
    font-size: 28px;
    margin-bottom: 8px;
    display: block;
}

/* --- News ----------------------------------------------------- */
.news-controls {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 16px;
    flex-wrap: wrap;
    gap: 10px;
}

.news-categories {
    display: flex;
    gap: 6px;
    flex-wrap: wrap;
}

.cat-btn {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 6px 12px;
    border: 1px solid var(--border-color);
    border-radius: 20px;
    background: transparent;
    color: var(--text-muted);
    font-size: 12px;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-sans);
}
.cat-btn:hover {
    background: var(--bg-hover);
    color: var(--text-secondary);
}
.cat-btn.active {
    background: var(--accent-cyan);
    color: white;
    border-color: var(--accent-cyan);
}

.news-summary {
    padding: 16px;
    margin-bottom: 16px;
    border-radius: var(--radius-md);
    background: var(--bg-surface);
    border: 1px solid var(--accent-cyan);
    border-left: 4px solid var(--accent-cyan);
}
.news-summary h4 {
    font-size: 13px;
    color: var(--accent-cyan);
    margin-bottom: 8px;
    display: flex;
    align-items: center;
    gap: 6px;
}

.news-list {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(340px, 1fr));
    gap: 12px;
}

.news-item {
    padding: 14px;
    border-radius: var(--radius-md);
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    transition: var(--transition);
}
.news-item:hover {
    border-color: var(--border-light);
    background: var(--bg-elevated);
}
.news-item-title {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    line-height: 1.4;
}
.news-item-title a {
    color: var(--text-primary);
}
.news-item-title a:hover {
    color: var(--accent-cyan);
}
.news-item-body {
    font-size: 12px;
    color: var(--text-muted);
    line-height: 1.5;
    margin-bottom: 8px;
    display: -webkit-box;
    -webkit-line-clamp: 3;
    -webkit-box-orient: vertical;
    overflow: hidden;
}
.news-item-meta {
    display: flex;
    align-items: center;
    gap: 12px;
    font-size: 10px;
    color: var(--text-muted);
}

/* --- AI Analysis ---------------------------------------------- */
.analysis-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 20px;
    padding: 16px;
    border-radius: var(--radius-md);
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
}
.analysis-header p {
    font-size: 13px;
    color: var(--text-muted);
    max-width: 600px;
}

/* Markdown body styling */
.markdown-body {
    font-size: 14px;
    line-height: 1.7;
    color: var(--text-primary);
}
.markdown-body h1,
.markdown-body h2,
.markdown-body h3 {
    margin: 20px 0 10px;
    color: var(--text-primary);
    font-weight: 600;
}
.markdown-body h1 { font-size: 20px; border-bottom: 1px solid var(--border-color); padding-bottom: 8px; }
.markdown-body h2 { font-size: 17px; }
.markdown-body h3 { font-size: 15px; }
.markdown-body p { margin: 8px 0; }
.markdown-body ul, .markdown-body ol { padding-left: 20px; margin: 8px 0; }
.markdown-body li { margin: 4px 0; }
.markdown-body strong { color: var(--accent-cyan); }
.markdown-body code {
    background: var(--bg-elevated);
    padding: 2px 6px;
    border-radius: 3px;
    font-family: var(--font-mono);
    font-size: 12px;
}
.markdown-body blockquote {
    border-left: 3px solid var(--accent-blue);
    padding-left: 12px;
    color: var(--text-secondary);
    margin: 10px 0;
}
.markdown-body table {
    width: 100%;
    border-collapse: collapse;
    margin: 12px 0;
}
.markdown-body th, .markdown-body td {
    padding: 8px 12px;
    border: 1px solid var(--border-color);
    text-align: left;
    font-size: 13px;
}
.markdown-body th {
    background: var(--bg-elevated);
    font-weight: 600;
}
.markdown-body td { font-family: var(--font-mono); font-size: 12px; }

/* --- Chat ----------------------------------------------------- */
.chat-messages {
    height: 420px;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.chat-welcome {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    text-align: center;
    gap: 12px;
}
.chat-welcome i { font-size: 36px; color: var(--accent-cyan); opacity: 0.5; }
.chat-welcome p { max-width: 400px; font-size: 13px; }

.chat-msg {
    max-width: 80%;
    padding: 10px 14px;
    border-radius: var(--radius-md);
    font-size: 13px;
    line-height: 1.6;
}
.chat-msg.user {
    align-self: flex-end;
    background: var(--accent-blue);
    color: white;
    border-bottom-right-radius: 2px;
}
.chat-msg.assistant {
    align-self: flex-start;
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-bottom-left-radius: 2px;
}
.chat-msg.assistant .markdown-body { font-size: 13px; }

.chat-input-area {
    display: flex;
    gap: 8px;
    padding: 12px 16px;
    border-top: 1px solid var(--border-color);
    background: var(--bg-surface);
}
.chat-input-area textarea {
    flex: 1;
    padding: 10px 14px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    background: var(--bg-elevated);
    color: var(--text-primary);
    font-size: 13px;
    font-family: var(--font-sans);
    resize: none;
    outline: none;
    max-height: 120px;
}
.chat-input-area textarea:focus {
    border-color: var(--accent-cyan);
}
.chat-input-area textarea::placeholder { color: var(--text-muted); }

.send-btn {
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    border: none;
    border-radius: var(--radius-md);
    background: var(--accent-cyan);
    color: white;
    cursor: pointer;
    transition: var(--transition);
    font-size: 14px;
}
.send-btn:hover { background: #0891b2; }
.send-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* --- Modal ---------------------------------------------------- */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 200;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(0,0,0,0.6);
    backdrop-filter: blur(4px);
}

.modal {
    width: 480px;
    max-width: 90vw;
    border-radius: var(--radius-lg);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    box-shadow: 0 20px 60px rgba(0,0,0,0.5);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}
.modal-header h3 {
    font-size: 15px;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 8px;
}
.modal-header h3 i { color: var(--accent-cyan); }

.modal-body {
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 6px;
}
.form-group label {
    font-size: 12px;
    font-weight: 500;
    color: var(--text-secondary);
}
.form-group input[type="text"],
.form-group input[type="password"] {
    padding: 10px 12px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    background: var(--bg-elevated);
    color: var(--text-primary);
    font-size: 13px;
    font-family: var(--font-mono);
    outline: none;
}
.form-group input:focus {
    border-color: var(--accent-cyan);
}

.form-group input[type="range"] {
    -webkit-appearance: none;
    height: 4px;
    border-radius: 2px;
    background: var(--border-color);
    outline: none;
}
.form-group input[type="range"]::-webkit-slider-thumb {
    -webkit-appearance: none;
    width: 16px;
    height: 16px;
    border-radius: 50%;
    background: var(--accent-cyan);
    cursor: pointer;
}
.range-value {
    font-size: 12px;
    font-family: var(--font-mono);
    color: var(--text-secondary);
}

.modal-footer {
    display: flex;
    justify-content: flex-end;
    gap: 8px;
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
}

.btn-primary, .btn-secondary {
    padding: 8px 20px;
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 13px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    font-family: var(--font-sans);
}
.btn-primary {
    background: var(--accent-cyan);
    color: white;
    border-color: var(--accent-cyan);
}
.btn-primary:hover { background: #0891b2; }
.btn-secondary {
    background: transparent;
    color: var(--text-secondary);
}
.btn-secondary:hover { background: var(--bg-hover); }

/* --- Loader --------------------------------------------------- */
.loader {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
}
.spinner {
    width: 28px;
    height: 28px;
    border: 3px solid var(--border-color);
    border-top-color: var(--accent-cyan);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

/* --- Utilities ------------------------------------------------ */
.hidden { display: none !important; }

.cursor-typing::after {
    content: '\25AE';
    animation: blink 0.7s step-end infinite;
    color: var(--accent-cyan);
    margin-left: 2px;
}
@keyframes blink {
    50% { opacity: 0; }
}

/* --- Responsive ----------------------------------------------- */
@media (max-width: 1200px) {
    .overview-grid {
        grid-template-columns: 1fr;
    }
    .chart-card { grid-column: auto; grid-row: auto; }
}
@media (max-width: 768px) {
    #app-header { padding: 0 12px; }
    #app-main { padding: 12px; }
    .logo-sub { display: none; }
    .element-cell .el-name { display: none; }
    .element-cell .el-number { font-size: 6px; }
    .element-cell .el-symbol { font-size: 11px; }
    .news-list { grid-template-columns: 1fr; }
}