/* ══════════════════════════════════════════════════════════════
   DerivBot Pro — Premium Dark Trading UI Design System
   ══════════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500;600&display=swap');

/* ── CSS Custom Properties ── */
:root {
  /* Colors */
  --bg-deep:    #050e1a;
  --bg-dark:    #0a1628;
  --bg-card:    rgba(13, 25, 48, 0.85);
  --bg-glass:   rgba(255,255,255,0.04);
  --bg-hover:   rgba(255,255,255,0.06);

  --cyan:       #00d4ff;
  --cyan-dim:   rgba(0,212,255,0.15);
  --green:      #00ff88;
  --green-dim:  rgba(0,255,136,0.15);
  --red:        #ff4757;
  --red-dim:    rgba(255,71,87,0.15);
  --yellow:     #ffd700;
  --yellow-dim: rgba(255,215,0,0.15);
  --purple:     #7c3aed;
  --orange:     #f97316;

  --text-primary:   #e2e8f0;
  --text-secondary: #8899aa;
  --text-muted:     #4a5568;
  --border:         rgba(255,255,255,0.08);
  --border-cyan:    rgba(0,212,255,0.2);

  /* Spacing */
  --radius-sm: 8px;
  --radius:    12px;
  --radius-lg: 18px;
  --radius-xl: 24px;

  /* Shadows */
  --shadow-glow-cyan:  0 0 30px rgba(0,212,255,0.2);
  --shadow-glow-green: 0 0 30px rgba(0,255,136,0.2);
  --shadow-card:       0 8px 32px rgba(0,0,0,0.4);
  --shadow-deep:       0 20px 60px rgba(0,0,0,0.6);
}

/* ── Reset ── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { font-size: 14px; scroll-behavior: smooth; }
body { font-family: 'Inter', sans-serif; background: var(--bg-deep); color: var(--text-primary); line-height: 1.6; overflow-x: hidden; }
a { text-decoration: none; color: var(--cyan); }
button { font-family: inherit; cursor: pointer; }
input, select, textarea { font-family: inherit; }
.mono { font-family: 'JetBrains Mono', monospace; }

/* ── Dashboard Layout ── */
.app-layout { display: grid; grid-template-columns: 240px 1fr; grid-template-rows: 60px 1fr; min-height: 100vh; }
.app-header { grid-column: 1/-1; background: rgba(5,14,26,0.95); backdrop-filter: blur(20px); border-bottom: 1px solid var(--border); display: flex; align-items: center; padding: 0 1.5rem; gap: 1rem; position: sticky; top: 0; z-index: 100; }
.app-sidebar { background: rgba(10,22,40,0.95); backdrop-filter: blur(20px); border-right: 1px solid var(--border); padding: 1.5rem 1rem; display: flex; flex-direction: column; gap: 0.25rem; position: sticky; top: 60px; height: calc(100vh - 60px); overflow-y: auto; }
.app-main { padding: 1.5rem; overflow-y: auto; background: var(--bg-deep); }

/* ── Header ── */
.header-logo { display: flex; align-items: center; gap: 0.75rem; }
.header-logo .logo-icon { width: 36px; height: 36px; background: linear-gradient(135deg, var(--cyan), var(--green)); border-radius: 10px; display: flex; align-items: center; justify-content: center; font-size: 1.1rem; flex-shrink: 0; box-shadow: var(--shadow-glow-cyan); }
.header-logo .logo-text { font-size: 1.1rem; font-weight: 800; background: linear-gradient(135deg, var(--cyan), var(--green)); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

.header-balance { margin-left: auto; display: flex; align-items: center; gap: 2rem; }
.balance-item { text-align: right; }
.balance-label { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; }
.balance-value { font-family: 'JetBrains Mono', monospace; font-size: 1.1rem; font-weight: 600; color: var(--text-primary); }
.balance-pnl.positive { color: var(--green); }
.balance-pnl.negative { color: var(--red); }

.mode-badge { padding: 0.3rem 0.75rem; border-radius: 20px; font-size: 0.75rem; font-weight: 700; letter-spacing: 0.1em; }
.mode-badge.demo { background: var(--yellow-dim); color: var(--yellow); border: 1px solid rgba(255,215,0,0.3); }
.mode-badge.live { background: var(--green-dim); color: var(--green); border: 1px solid rgba(0,255,136,0.3); animation: livePulse 2s infinite; }
@keyframes livePulse { 0%,100%{opacity:1} 50%{opacity:0.6} }

.btn-emergency { padding: 0.5rem 1rem; background: var(--red-dim); border: 1px solid rgba(255,71,87,0.4); border-radius: var(--radius-sm); color: var(--red); font-size: 0.8rem; font-weight: 700; transition: all 0.2s; }
.btn-emergency:hover { background: var(--red); color: white; box-shadow: 0 4px 15px rgba(255,71,87,0.4); }

/* ── Toggle Switch ── */
.bot-toggle { display: flex; align-items: center; gap: 0.75rem; }
.toggle-label { font-size: 0.85rem; font-weight: 500; color: var(--text-secondary); }
.toggle-switch { position: relative; width: 52px; height: 28px; }
.toggle-switch input { opacity: 0; width: 0; height: 0; }
.toggle-slider { position: absolute; inset: 0; background: rgba(255,255,255,0.1); border-radius: 28px; cursor: pointer; transition: 0.3s; border: 1px solid var(--border); }
.toggle-slider::before { content: ''; position: absolute; height: 20px; width: 20px; left: 3px; top: 3px; background: var(--text-muted); border-radius: 50%; transition: 0.3s; }
input:checked + .toggle-slider { background: linear-gradient(135deg, var(--cyan), var(--green)); border-color: var(--cyan); }
input:checked + .toggle-slider::before { transform: translateX(24px); background: white; box-shadow: 0 2px 8px rgba(0,0,0,0.3); }

/* ── Sidebar Nav ── */
.nav-section { margin-bottom: 1.5rem; }
.nav-section-title { font-size: 0.65rem; font-weight: 700; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.12em; padding: 0 0.75rem; margin-bottom: 0.5rem; }
.nav-item { display: flex; align-items: center; gap: 0.75rem; padding: 0.65rem 0.75rem; border-radius: var(--radius-sm); color: var(--text-secondary); font-size: 0.9rem; font-weight: 500; transition: all 0.2s; cursor: pointer; text-decoration: none; }
.nav-item:hover { background: var(--bg-hover); color: var(--text-primary); }
.nav-item.active { background: var(--cyan-dim); color: var(--cyan); border: 1px solid var(--border-cyan); }
.nav-item .nav-icon { width: 18px; text-align: center; font-size: 1rem; }
.nav-badge { margin-left: auto; background: var(--cyan); color: var(--bg-deep); font-size: 0.65rem; font-weight: 700; padding: 0.15rem 0.4rem; border-radius: 10px; }

/* ── Cards ── */
.card { background: var(--bg-card); backdrop-filter: blur(20px); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.25rem; transition: border-color 0.2s; }
.card:hover { border-color: rgba(0,212,255,0.15); }
.card-header { display: flex; align-items: center; justify-content: space-between; margin-bottom: 1rem; }
.card-title { font-size: 0.8rem; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.08em; }
.card-icon { font-size: 1.1rem; }

.card-glow-cyan { box-shadow: 0 0 0 1px var(--border-cyan), var(--shadow-glow-cyan); border-color: var(--border-cyan); }
.card-glow-green { box-shadow: 0 0 0 1px rgba(0,255,136,0.2), var(--shadow-glow-green); border-color: rgba(0,255,136,0.2); }

/* ── Engine Status Cards ── */
.engine-cards { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; margin-bottom: 1.5rem; }
.engine-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); padding: 1.25rem; }
.engine-card.active { border-color: var(--border-cyan); box-shadow: var(--shadow-glow-cyan); }
.engine-header { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1rem; }
.engine-dot { width: 10px; height: 10px; border-radius: 50%; background: var(--text-muted); }
.engine-dot.running { background: var(--green); box-shadow: 0 0 8px var(--green); animation: dotPulse 1.5s infinite; }
.engine-dot.stopped { background: var(--red); }
@keyframes dotPulse { 0%,100%{opacity:1;transform:scale(1)} 50%{opacity:0.5;transform:scale(0.8)} }
.engine-name { font-weight: 700; font-size: 0.95rem; }
.engine-badge { margin-left: auto; font-size: 0.7rem; padding: 0.2rem 0.5rem; border-radius: 20px; background: var(--bg-glass); color: var(--text-muted); }
.engine-stats { display: grid; grid-template-columns: 1fr 1fr; gap: 0.5rem; }
.engine-stat { text-align: center; padding: 0.5rem; background: var(--bg-glass); border-radius: var(--radius-sm); }
.engine-stat-label { font-size: 0.65rem; color: var(--text-muted); text-transform: uppercase; }
.engine-stat-value { font-family: 'JetBrains Mono', monospace; font-size: 0.95rem; font-weight: 600; color: var(--text-primary); }

/* ── Confidence Meter ── */
.confidence-meter { display: flex; flex-direction: column; align-items: center; gap: 0.75rem; }
.confidence-ring { position: relative; width: 140px; height: 140px; }
.confidence-ring svg { transform: rotate(-90deg); }
.confidence-ring .ring-bg { fill: none; stroke: rgba(255,255,255,0.05); stroke-width: 10; }
.confidence-ring .ring-fill { fill: none; stroke-width: 10; stroke-linecap: round; transition: stroke-dashoffset 0.8s cubic-bezier(0.4,0,0.2,1), stroke 0.5s; }
.confidence-ring .ring-text { position: absolute; top: 50%; left: 50%; transform: translate(-50%,-50%); text-align: center; }
.confidence-value { font-family: 'JetBrains Mono', monospace; font-size: 2rem; font-weight: 700; line-height: 1; }
.confidence-label { font-size: 0.65rem; color: var(--text-muted); text-transform: uppercase; }
.confidence-direction { font-size: 0.85rem; font-weight: 700; padding: 0.3rem 1rem; border-radius: 20px; }
.confidence-direction.buy { background: var(--green-dim); color: var(--green); border: 1px solid rgba(0,255,136,0.3); }
.confidence-direction.sell { background: var(--red-dim); color: var(--red); border: 1px solid rgba(255,71,87,0.3); }
.confidence-direction.hold { background: var(--bg-glass); color: var(--text-muted); }

/* ── Indicator Bars ── */
.indicator-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 0.6rem; }
.indicator-name { font-size: 0.75rem; color: var(--text-secondary); width: 55px; flex-shrink: 0; }
.indicator-bar-wrap { flex: 1; height: 6px; background: rgba(255,255,255,0.06); border-radius: 3px; overflow: hidden; }
.indicator-bar { height: 100%; border-radius: 3px; transition: width 0.8s, background 0.3s; }
.indicator-bar.buy { background: linear-gradient(90deg, var(--cyan), var(--green)); }
.indicator-bar.sell { background: linear-gradient(90deg, var(--orange), var(--red)); }
.indicator-bar.neutral { background: rgba(255,255,255,0.2); }
.indicator-value { font-family: 'JetBrains Mono', monospace; font-size: 0.75rem; color: var(--text-secondary); width: 60px; text-align: right; flex-shrink: 0; }
.indicator-signal { font-size: 0.65rem; font-weight: 700; width: 35px; text-align: right; flex-shrink: 0; }
.indicator-signal.buy { color: var(--green); }
.indicator-signal.sell { color: var(--red); }
.indicator-signal.neutral { color: var(--text-muted); }

/* ── Signal Panel Grid ── */
.signal-grid { display: grid; grid-template-columns: 1fr 140px; gap: 1rem; }
.indicators-panel { display: flex; flex-direction: column; justify-content: center; gap: 0.25rem; }

/* ── Chart Container ── */
.chart-container { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius-lg); overflow: hidden; margin-bottom: 1.5rem; }
.chart-toolbar { display: flex; align-items: center; gap: 0.75rem; padding: 0.75rem 1rem; border-bottom: 1px solid var(--border); flex-wrap: wrap; }
.chart-symbol-tabs { display: flex; gap: 0.25rem; }
.symbol-tab { padding: 0.35rem 0.75rem; border-radius: var(--radius-sm); font-size: 0.8rem; font-weight: 600; cursor: pointer; border: 1px solid var(--border); background: transparent; color: var(--text-secondary); transition: all 0.2s; }
.symbol-tab:hover { border-color: var(--cyan); color: var(--cyan); }
.symbol-tab.active { background: var(--cyan-dim); border-color: var(--cyan); color: var(--cyan); }
.tf-tabs { display: flex; gap: 0.25rem; margin-left: auto; }
.tf-tab { padding: 0.25rem 0.6rem; border-radius: 6px; font-size: 0.75rem; font-weight: 600; cursor: pointer; border: 1px solid var(--border); background: transparent; color: var(--text-muted); transition: all 0.2s; }
.tf-tab.active { background: rgba(255,255,255,0.08); color: var(--text-primary); border-color: rgba(255,255,255,0.15); }
.chart-wrap { height: 320px; }

/* ── Active Trade Card ── */
.active-trade-card { background: linear-gradient(135deg, rgba(0,212,255,0.05), rgba(0,255,136,0.05)); border: 1px solid var(--border-cyan); border-radius: var(--radius-lg); padding: 1.25rem; margin-bottom: 1rem; }
.trade-symbol-row { display: flex; align-items: center; gap: 0.75rem; margin-bottom: 1rem; }
.trade-dir-badge { padding: 0.3rem 0.75rem; border-radius: 20px; font-size: 0.8rem; font-weight: 800; }
.trade-dir-badge.buy { background: var(--green-dim); color: var(--green); }
.trade-dir-badge.sell { background: var(--red-dim); color: var(--red); }
.trade-symbol-name { font-size: 1.1rem; font-weight: 700; }
.trade-engine-tag { margin-left: auto; font-size: 0.7rem; color: var(--text-muted); }
.trade-pnl { font-family: 'JetBrains Mono', monospace; font-size: 2rem; font-weight: 700; margin-bottom: 0.75rem; }
.trade-pnl.positive { color: var(--green); }
.trade-pnl.negative { color: var(--red); }
.trade-meta { display: flex; gap: 1.5rem; }
.trade-meta-item { font-size: 0.8rem; }
.trade-meta-label { color: var(--text-muted); font-size: 0.7rem; text-transform: uppercase; }

/* ── Stats Row ── */
.stats-row { display: grid; grid-template-columns: repeat(4,1fr); gap: 1rem; margin-bottom: 1.5rem; }
.stat-card { background: var(--bg-card); border: 1px solid var(--border); border-radius: var(--radius); padding: 1rem; text-align: center; }
.stat-icon { font-size: 1.5rem; margin-bottom: 0.5rem; }
.stat-value { font-family: 'JetBrains Mono', monospace; font-size: 1.4rem; font-weight: 700; color: var(--text-primary); }
.stat-label { font-size: 0.7rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.05em; margin-top: 0.25rem; }

/* ── Recent Trades Table ── */
.trades-table { width: 100%; border-collapse: collapse; }
.trades-table th { padding: 0.6rem 0.75rem; text-align: left; font-size: 0.7rem; font-weight: 600; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.08em; border-bottom: 1px solid var(--border); }
.trades-table td { padding: 0.6rem 0.75rem; font-size: 0.85rem; border-bottom: 1px solid rgba(255,255,255,0.03); }
.trades-table tr:hover td { background: var(--bg-hover); }
.outcome-badge { padding: 0.2rem 0.5rem; border-radius: 6px; font-size: 0.7rem; font-weight: 700; }
.outcome-badge.win { background: var(--green-dim); color: var(--green); }
.outcome-badge.loss { background: var(--red-dim); color: var(--red); }
.outcome-badge.open { background: var(--cyan-dim); color: var(--cyan); }

/* ── Live Log ── */
.live-log { height: 180px; overflow-y: auto; display: flex; flex-direction: column-reverse; gap: 0.25rem; padding: 0.75rem; background: rgba(0,0,0,0.3); border-radius: var(--radius-sm); }
.log-entry { display: flex; gap: 0.75rem; font-size: 0.78rem; font-family: 'JetBrains Mono', monospace; }
.log-time { color: var(--text-muted); flex-shrink: 0; }
.log-msg.info { color: var(--text-secondary); }
.log-msg.warn { color: var(--yellow); }
.log-msg.error { color: var(--red); }
.log-msg.trade { color: var(--cyan); }
.log-msg.win { color: var(--green); }
.log-msg.loss { color: var(--red); }

/* ── AI Verdict Card ── */
.ai-card { background: linear-gradient(135deg, rgba(124,58,237,0.1), rgba(0,212,255,0.05)); border: 1px solid rgba(124,58,237,0.2); border-radius: var(--radius-lg); padding: 1.25rem; }
.ai-regime { display: inline-block; padding: 0.25rem 0.75rem; border-radius: 20px; font-size: 0.75rem; font-weight: 700; background: rgba(124,58,237,0.15); color: #a78bfa; border: 1px solid rgba(124,58,237,0.3); margin-bottom: 0.75rem; }
.ai-sentiment-bar { height: 8px; background: rgba(255,255,255,0.06); border-radius: 4px; overflow: hidden; margin: 0.5rem 0; }
.ai-sentiment-fill { height: 100%; border-radius: 4px; transition: width 0.8s, background 0.5s; }
.ai-reasoning { font-size: 0.8rem; color: var(--text-secondary); line-height: 1.5; font-style: italic; }

/* ── Buttons ── */
.btn { padding: 0.6rem 1.25rem; border-radius: var(--radius-sm); font-size: 0.85rem; font-weight: 600; border: none; transition: all 0.2s; cursor: pointer; }
.btn-primary { background: linear-gradient(135deg, var(--cyan), var(--green)); color: var(--bg-deep); }
.btn-primary:hover { transform: translateY(-1px); box-shadow: 0 4px 20px rgba(0,212,255,0.4); }
.btn-secondary { background: var(--bg-glass); border: 1px solid var(--border); color: var(--text-secondary); }
.btn-secondary:hover { background: var(--bg-hover); color: var(--text-primary); }
.btn-danger { background: var(--red-dim); border: 1px solid rgba(255,71,87,0.3); color: var(--red); }
.btn-danger:hover { background: var(--red); color: white; box-shadow: 0 4px 15px rgba(255,71,87,0.4); }
.btn-sm { padding: 0.4rem 0.75rem; font-size: 0.75rem; }
.btn-icon { width: 32px; height: 32px; padding: 0; display: flex; align-items: center; justify-content: center; font-size: 0.9rem; }

/* ── Form Elements ── */
.form-group { margin-bottom: 1.25rem; }
.form-label { display: block; font-size: 0.75rem; font-weight: 600; color: var(--text-secondary); text-transform: uppercase; letter-spacing: 0.05em; margin-bottom: 0.5rem; }
.form-input, .form-select { width: 100%; background: rgba(255,255,255,0.04); border: 1px solid var(--border); border-radius: var(--radius-sm); padding: 0.7rem 0.9rem; color: var(--text-primary); font-family: inherit; font-size: 0.9rem; transition: all 0.2s; box-sizing: border-box; }
.form-input:focus, .form-select:focus { outline: none; border-color: var(--cyan); box-shadow: 0 0 0 3px var(--cyan-dim); background: rgba(0,212,255,0.03); }
.form-input::placeholder { color: var(--text-muted); }
.form-select option { background: var(--bg-dark); }
.form-hint { font-size: 0.75rem; color: var(--text-muted); margin-top: 0.35rem; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }

/* Range slider */
.range-wrap { display: flex; align-items: center; gap: 1rem; }
input[type=range] { flex: 1; -webkit-appearance: none; height: 6px; background: rgba(255,255,255,0.1); border-radius: 3px; outline: none; }
input[type=range]::-webkit-slider-thumb { -webkit-appearance: none; width: 18px; height: 18px; border-radius: 50%; background: linear-gradient(135deg, var(--cyan), var(--green)); cursor: pointer; box-shadow: 0 2px 8px rgba(0,212,255,0.4); }
.range-value { font-family: 'JetBrains Mono', monospace; font-size: 0.9rem; font-weight: 700; color: var(--cyan); min-width: 40px; text-align: right; }

/* ── Settings Tabs ── */
.settings-tabs { display: flex; gap: 0.5rem; margin-bottom: 1.5rem; flex-wrap: wrap; }
.settings-tab { padding: 0.5rem 1rem; border-radius: var(--radius-sm); font-size: 0.85rem; font-weight: 500; cursor: pointer; border: 1px solid var(--border); background: transparent; color: var(--text-secondary); transition: all 0.2s; }
.settings-tab.active { background: var(--cyan-dim); border-color: var(--cyan); color: var(--cyan); }
.settings-panel { display: none; }
.settings-panel.active { display: block; }

/* ── Alert / Toast ── */
.toast-container { position: fixed; top: 1rem; right: 1rem; z-index: 9999; display: flex; flex-direction: column; gap: 0.5rem; }
.toast { background: var(--bg-card); backdrop-filter: blur(20px); border: 1px solid var(--border); border-radius: var(--radius); padding: 0.85rem 1.25rem; display: flex; align-items: center; gap: 0.75rem; min-width: 300px; animation: toastIn 0.3s ease; box-shadow: var(--shadow-deep); }
.toast.success { border-color: rgba(0,255,136,0.3); }
.toast.error { border-color: rgba(255,71,87,0.3); }
.toast.info { border-color: var(--border-cyan); }
@keyframes toastIn { from{transform:translateX(100%);opacity:0} to{transform:translateX(0);opacity:1} }

/* ── Progress / Loading ── */
.spinner { width: 20px; height: 20px; border: 2px solid rgba(255,255,255,0.1); border-top-color: var(--cyan); border-radius: 50%; animation: spin 0.8s linear infinite; }
@keyframes spin { to{transform:rotate(360deg)} }
.skeleton { background: linear-gradient(90deg, rgba(255,255,255,0.04) 25%, rgba(255,255,255,0.08) 50%, rgba(255,255,255,0.04) 75%); background-size: 200% 100%; animation: skeleton 1.5s infinite; border-radius: 4px; }
@keyframes skeleton { 0%{background-position:200% 0} 100%{background-position:-200% 0} }

/* ── Page sections ── */
.page-title { font-size: 1.4rem; font-weight: 800; margin-bottom: 0.25rem; }
.page-subtitle { color: var(--text-secondary); font-size: 0.9rem; margin-bottom: 1.5rem; }
.section-title { font-size: 0.8rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); margin-bottom: 1rem; padding-bottom: 0.5rem; border-bottom: 1px solid var(--border); }

/* ── Grid Layouts ── */
.grid-2 { display: grid; grid-template-columns: 1fr 1fr; gap: 1rem; }
.grid-3 { display: grid; grid-template-columns: 1fr 1fr 1fr; gap: 1rem; }
.grid-4 { display: grid; grid-template-columns: repeat(4,1fr); gap: 1rem; }
.gap-1 { gap: 1rem; }

/* ── Scrollbar ── */
::-webkit-scrollbar { width: 6px; height: 6px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: rgba(255,255,255,0.1); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: rgba(255,255,255,0.2); }

/* ── Responsive ── */
@media (max-width: 1200px) {
  .stats-row { grid-template-columns: repeat(2,1fr); }
}
@media (max-width: 900px) {
  .app-layout { grid-template-columns: 1fr; }
  .app-sidebar { display: none; }
  .engine-cards { grid-template-columns: 1fr; }
  .form-grid { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .stats-row { grid-template-columns: 1fr 1fr; }
  .signal-grid { grid-template-columns: 1fr; }
}

/* ── Utility ── */
.text-green { color: var(--green); } .text-red { color: var(--red); }
.text-cyan { color: var(--cyan); } .text-muted { color: var(--text-muted); }
.text-center { text-align: center; }
.mt-1 { margin-top: 0.75rem; } .mt-2 { margin-top: 1.5rem; }
.mb-1 { margin-bottom: 0.75rem; } .mb-2 { margin-bottom: 1.5rem; }
.flex { display: flex; } .items-center { align-items: center; }
.justify-between { justify-content: space-between; }
.gap-sm { gap: 0.5rem; } .gap-md { gap: 1rem; }
.w-full { width: 100%; }
.hidden { display: none !important; }