/* ═══════════════════════════════════════════
   DESIGN SYSTEM — CARBONMIND v3
   Aesthetic: NASA Mission Control × Apple Clarity
   ═══════════════════════════════════════════ */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }

:root {
  /* Core Palette */
  --void:        #080d16;
  --surface-0:   #0d1420;
  --surface-1:   #111927;
  --surface-2:   #16202e;
  --surface-3:   #1c2a3a;
  --border:      rgba(148,177,214,0.10);
  --border-hi:   rgba(148,177,214,0.22);

  /* Accent System */
  --blue-500:    #3b82f6;
  --blue-400:    #60a5fa;
  --blue-300:    #93c5fd;
  --teal-500:    #14b8a6;
  --teal-400:    #2dd4bf;
  --teal-300:    #5eead4;
  --emerald:     #10b981;
  --amber:       #f59e0b;
  --rose:        #f43f5e;
  --violet:      #8b5cf6;

  /* Text */
  --text-1:  #e8eef5;
  --text-2:  #a8b8cc;
  --text-3:  #637283;
  --text-inv: #080d16;

  /* Shadows */
  --shadow-sm:  0 1px 3px rgba(0,0,0,.4), 0 1px 2px rgba(0,0,0,.3);
  --shadow-md:  0 4px 16px rgba(0,0,0,.5), 0 2px 4px rgba(0,0,0,.3);
  --shadow-lg:  0 20px 48px rgba(0,0,0,.6), 0 8px 16px rgba(0,0,0,.4);

  /* Score Colors */
  --score-critical: #f43f5e;
  --score-poor:     #fb923c;
  --score-moderate: #f59e0b;
  --score-good:     #34d399;
  --score-excellent: #10b981;

  --font-body: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'DM Mono', monospace;
  --radius:    14px;
  --radius-sm: 8px;
  --radius-lg: 20px;
  --transition: 0.22s cubic-bezier(0.4, 0, 0.2, 1);
}

html, body {
  font-family: var(--font-body);
  background: var(--void);
  color: var(--text-1);
  min-height: 100vh;
  font-size: 14px;
  line-height: 1.6;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

/* ── BACKGROUND ── */
.bg-mesh {
  position: fixed; inset: 0; z-index: 0; pointer-events: none;
  background:
    radial-gradient(ellipse 80% 50% at 20% 10%, rgba(59,130,246,0.07) 0%, transparent 60%),
    radial-gradient(ellipse 60% 40% at 80% 80%, rgba(20,184,166,0.06) 0%, transparent 60%),
    radial-gradient(ellipse 40% 60% at 60% 30%, rgba(139,92,246,0.04) 0%, transparent 60%);
}

/* ── CANVAS ── */
#neural-canvas {
  position: fixed; inset: 0; z-index: 1; pointer-events: none; opacity: 0.45;
}

/* ══════════════════════════════
   TOPBAR
══════════════════════════════ */
.topbar {
  position: sticky; top: 0; z-index: 200;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 28px; height: 60px;
  background: rgba(8,13,22,0.88);
  backdrop-filter: blur(24px) saturate(160%);
  border-bottom: 1px solid var(--border);
}

.logo {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-mono); font-size: 1rem; font-weight: 500;
  color: var(--text-1); letter-spacing: 0.05em;
}

.logo-mark {
  width: 32px; height: 32px; border-radius: 9px;
  background: linear-gradient(135deg, var(--blue-500), var(--teal-500));
  display: flex; align-items: center; justify-content: center;
  font-size: 1rem; font-weight: 700;
  box-shadow: 0 0 20px rgba(59,130,246,0.3);
  position: relative; overflow: hidden;
}
.logo-mark::after {
  content:''; position:absolute; inset:0;
  background: linear-gradient(135deg, rgba(255,255,255,0.2), transparent);
}

.logo-sub { font-size: 0.7rem; color: var(--text-3); font-weight: 300; letter-spacing: 0.12em; }

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

.nav-pill {
  display: flex; align-items: center; gap: 6px;
  padding: 7px 14px; border-radius: 40px;
  font-size: 0.78rem; font-weight: 500; cursor: pointer;
  border: 1px solid var(--border);
  background: transparent; color: var(--text-2);
  transition: var(--transition); white-space: nowrap;
}
.nav-pill:hover { border-color: var(--blue-500); color: var(--blue-400); background: rgba(59,130,246,0.08); }
.nav-pill.primary {
  background: linear-gradient(135deg, var(--blue-500), var(--teal-500));
  border-color: transparent; color: var(--text-inv); font-weight: 600;
  box-shadow: 0 4px 16px rgba(59,130,246,0.3);
}
.nav-pill.primary:hover { transform: translateY(-1px); box-shadow: 0 6px 24px rgba(59,130,246,0.45); }

.live-badge {
  display: flex; align-items: center; gap: 5px;
  padding: 4px 10px; border-radius: 20px; font-size: 0.7rem;
  background: rgba(16,185,129,0.12); border: 1px solid rgba(16,185,129,0.25);
  color: var(--emerald); font-family: var(--font-mono);
}
.live-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--emerald); animation: blink 1.8s infinite; }
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0.3} }

/* ══════════════════════════════
   PAGE LAYOUT
══════════════════════════════ */
.page {
  position: relative; z-index: 10;
  max-width: 1480px; margin: 0 auto;
  padding: 24px 24px 40px;
  display: grid;
  grid-template-columns: 340px 1fr;
  grid-template-rows: auto;
  gap: 16px;
}

/* ── PANELS ── */
.card {
  background: var(--surface-1);
  border: 1px solid var(--border);
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-md);
  transition: border-color var(--transition), box-shadow var(--transition);
  position: relative; overflow: hidden;
}
.card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 1px;
  background: linear-gradient(90deg, transparent, rgba(148,177,214,0.15), transparent);
  pointer-events: none;
}
.card:hover { border-color: var(--border-hi); }

.card-header {
  display: flex; align-items: flex-start; justify-content: space-between;
  margin-bottom: 18px;
}
.card-title {
  font-size: 0.7rem; font-weight: 500; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--text-3);
  font-family: var(--font-mono);
  display: flex; align-items: center; gap: 7px;
}
.card-title-icon { font-size: 0.85rem; }

.section-label {
  font-size: 0.68rem; font-weight: 500; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--text-3);
  font-family: var(--font-mono); margin-bottom: 10px;
}

/* ══════════════════════════════
   LEFT SIDEBAR — SCAN INPUT
══════════════════════════════ */
.sidebar { grid-row: 1 / 4; display: flex; flex-direction: column; gap: 14px; }

/* Transport tabs */
.transport-tabs {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: 6px; margin-bottom: 4px;
}
.t-tab {
  padding: 9px 8px; border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: transparent; color: var(--text-3);
  font-size: 0.8rem; cursor: pointer;
  transition: var(--transition); text-align: center;
  display: flex; flex-direction: column; align-items: center; gap: 2px;
}
.t-tab:hover { border-color: var(--border-hi); color: var(--text-2); }
.t-tab.active {
  border-color: var(--blue-500);
  background: rgba(59,130,246,0.1);
  color: var(--blue-400);
}
.t-tab .t-icon { font-size: 1.2rem; }
.t-tab .t-label { font-size: 0.65rem; font-family: var(--font-mono); letter-spacing: 0.08em; }

/* Sliders */
.input-block { margin-bottom: 16px; }
.input-meta {
  display: flex; justify-content: space-between; align-items: center;
  margin-bottom: 8px;
}
.input-meta-label {
  font-size: 0.75rem; color: var(--text-2); font-weight: 500;
  display: flex; align-items: center; gap: 6px;
}
.input-meta-label .i-icon { color: var(--teal-400); }
.input-meta-val {
  font-family: var(--font-mono); font-size: 0.82rem; color: var(--text-1);
  background: var(--surface-3); padding: 3px 10px; border-radius: 6px;
  border: 1px solid var(--border); min-width: 60px; text-align: right;
}

.slider-wrap { position: relative; }
input[type=range] {
  -webkit-appearance: none; width: 100%; height: 6px;
  border-radius: 4px; cursor: pointer; outline: none;
  background: var(--surface-3);
}
input[type=range]::-webkit-slider-thumb {
  -webkit-appearance: none; width: 18px; height: 18px;
  border-radius: 50%; background: var(--blue-400);
  border: 2px solid var(--surface-1);
  box-shadow: 0 0 0 3px rgba(59,130,246,0.2);
  cursor: pointer; transition: box-shadow 0.15s;
}
input[type=range]::-webkit-slider-thumb:hover {
  box-shadow: 0 0 0 5px rgba(59,130,246,0.3);
}
input[type=range]:focus::-webkit-slider-thumb {
  box-shadow: 0 0 0 5px rgba(59,130,246,0.35);
}
/* Filled track via JS */

/* Number input override */
.number-input-row { display: flex; gap: 8px; }
.num-input {
  flex: 1; background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 10px 14px;
  color: var(--text-1); font-size: 0.95rem;
  font-family: var(--font-mono); transition: var(--transition);
}
.num-input:focus { outline: none; border-color: var(--blue-500); background: var(--surface-3); }
.num-unit {
  display: flex; align-items: center; padding: 0 14px;
  background: var(--surface-3); border: 1px solid var(--border);
  border-radius: var(--radius-sm); color: var(--text-3);
  font-family: var(--font-mono); font-size: 0.78rem; white-space: nowrap;
}

/* Scan Button */
.scan-btn {
  width: 100%; padding: 16px 24px;
  border: none; border-radius: var(--radius);
  background: linear-gradient(135deg, #3b82f6 0%, #14b8a6 100%);
  color: #fff; font-family: var(--font-body);
  font-size: 0.92rem; font-weight: 600;
  letter-spacing: 0.04em; cursor: pointer;
  position: relative; overflow: hidden;
  box-shadow: 0 4px 20px rgba(59,130,246,0.35);
  transition: var(--transition);
}
.scan-btn:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 8px 32px rgba(59,130,246,0.5); }
.scan-btn:active:not(:disabled) { transform: translateY(0); }
.scan-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.scan-btn-content { display: flex; align-items: center; justify-content: center; gap: 8px; }
.scan-btn::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.1), transparent 60%);
  pointer-events: none;
}

/* Progress */
.scan-progress { margin-top: 12px; display: none; }
.scan-progress.show { display: block; }
.progress-track {
  height: 3px; background: var(--surface-3); border-radius: 3px;
  overflow: hidden; margin-bottom: 8px;
}
.progress-fill {
  height: 100%; width: 0%; border-radius: 3px;
  background: linear-gradient(90deg, var(--blue-500), var(--teal-500));
  transition: width 0.35s ease;
}
.progress-phase {
  font-size: 0.72rem; color: var(--text-3);
  font-family: var(--font-mono); text-align: center;
  letter-spacing: 0.05em;
}

/* Score Rating Mini */
.score-mini-card {
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 16px;
  display: flex; align-items: center; gap: 14px;
}
.score-mini-gauge { flex-shrink: 0; }

/* ══════════════════════════════
   MAIN CONTENT — RIGHT SIDE
══════════════════════════════ */
.main-content {
  display: flex; flex-direction: column; gap: 16px;
}

/* KPI Row */
.kpi-row {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 12px;
}

.kpi-card {
  background: var(--surface-1); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 18px 20px;
  box-shadow: var(--shadow-sm); transition: var(--transition);
  position: relative; overflow: hidden;
}
.kpi-card:hover { border-color: var(--border-hi); transform: translateY(-2px); }
.kpi-card-accent {
  position: absolute; top: 0; left: 0; bottom: 0; width: 3px; border-radius: 3px 0 0 3px;
}
.kpi-label {
  font-size: 0.68rem; color: var(--text-3);
  text-transform: uppercase; letter-spacing: 0.12em;
  font-family: var(--font-mono); margin-bottom: 6px;
}
.kpi-value {
  font-size: 1.65rem; font-weight: 600; color: var(--text-1);
  font-family: var(--font-mono); line-height: 1.1;
  transition: color 0.4s;
}
.kpi-sub { font-size: 0.72rem; color: var(--text-3); margin-top: 4px; }
.kpi-delta {
  font-size: 0.7rem; font-family: var(--font-mono); font-weight: 500;
  margin-top: 6px; display: inline-flex; align-items: center; gap: 3px;
  padding: 2px 8px; border-radius: 20px;
}
.delta-up { background: rgba(244,63,94,0.12); color: var(--rose); border: 1px solid rgba(244,63,94,0.2); }
.delta-down { background: rgba(16,185,129,0.12); color: var(--emerald); border: 1px solid rgba(16,185,129,0.2); }
.delta-neutral { background: var(--surface-3); color: var(--text-3); border: 1px solid var(--border); }

/* Charts Row */
.charts-row { display: grid; grid-template-columns: 1fr 1fr 1.2fr; gap: 14px; }

/* Insights + Roadmap */
.intel-row { display: grid; grid-template-columns: 1fr 1fr; gap: 14px; }

/* Simulator card */
.sim-row { display: grid; grid-template-columns: 1.2fr 0.8fr; gap: 14px; }

/* ══════════════════════════════
   GAUGE (SVG-based)
══════════════════════════════ */
.gauge-wrap { position: relative; width: 180px; height: 180px; margin: 0 auto; }
.gauge-svg { width: 100%; height: 100%; transform: rotate(-90deg); }
.gauge-bg-ring { fill: none; stroke: rgba(148,177,214,0.08); stroke-width: 14; }
.gauge-fill-ring {
  fill: none; stroke-width: 14; stroke-linecap: round;
  stroke: var(--blue-400); stroke-dasharray: 565.48;
  stroke-dashoffset: 565.48;
  transition: stroke-dashoffset 1.4s cubic-bezier(0.4,0,0.2,1), stroke 0.8s ease;
  filter: drop-shadow(0 0 10px currentColor);
}
.gauge-center {
  position: absolute; inset: 0;
  display: flex; flex-direction: column; align-items: center; justify-content: center;
}
.gauge-score-num {
  font-family: var(--font-mono); font-size: 2.8rem; font-weight: 500;
  color: var(--text-1); line-height: 1; transition: color 0.6s;
}
.gauge-score-label { font-size: 0.62rem; color: var(--text-3); letter-spacing: 0.12em; margin-top: 3px; }
.gauge-rating {
  font-size: 0.75rem; font-weight: 600; margin-top: 6px;
  padding: 3px 12px; border-radius: 20px;
  font-family: var(--font-mono); letter-spacing: 0.06em;
}

/* ══════════════════════════════
   RATING CLASSES
══════════════════════════════ */
.r-excellent { color: var(--score-excellent); background: rgba(16,185,129,0.12); border: 1px solid rgba(16,185,129,0.25); }
.r-good      { color: var(--score-good);      background: rgba(52,211,153,0.12); border: 1px solid rgba(52,211,153,0.25); }
.r-moderate  { color: var(--amber);            background: rgba(245,158,11,0.12); border: 1px solid rgba(245,158,11,0.25); }
.r-poor      { color: #fb923c;                 background: rgba(251,146,60,0.12); border: 1px solid rgba(251,146,60,0.25); }
.r-critical  { color: var(--rose);             background: rgba(244,63,94,0.12);  border: 1px solid rgba(244,63,94,0.25); }

/* ══════════════════════════════
   INSIGHT CARDS
══════════════════════════════ */
.insight-item {
  padding: 14px 16px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  background: var(--surface-2);
  margin-bottom: 8px;
  transition: var(--transition);
}
.insight-item:hover { border-color: var(--border-hi); }
.insight-item:last-child { margin-bottom: 0; }
.insight-header { display: flex; align-items: center; gap: 8px; margin-bottom: 6px; }
.insight-icon { font-size: 1rem; }
.insight-title { font-size: 0.78rem; font-weight: 600; color: var(--text-1); }
.insight-body { font-size: 0.8rem; color: var(--text-2); line-height: 1.55; }
.insight-badge {
  font-size: 0.62rem; padding: 2px 8px; border-radius: 20px;
  font-family: var(--font-mono); margin-left: auto; white-space: nowrap;
}

/* ══════════════════════════════
   CONTRIBUTION BARS
══════════════════════════════ */
.contrib-bar-wrap { margin-bottom: 12px; }
.contrib-bar-meta { display: flex; justify-content: space-between; margin-bottom: 6px; }
.contrib-bar-label { font-size: 0.78rem; color: var(--text-2); display: flex; align-items: center; gap: 6px; }
.contrib-bar-pct { font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-1); font-weight: 500; }
.contrib-track {
  height: 7px; background: var(--surface-3); border-radius: 6px; overflow: hidden;
}
.contrib-fill {
  height: 100%; border-radius: 6px;
  transition: width 0.9s cubic-bezier(0.4,0,0.2,1);
  width: 0%;
}

/* ══════════════════════════════
   ROADMAP
══════════════════════════════ */
.roadmap-week {
  display: flex; gap: 12px; padding: 12px 0;
  border-bottom: 1px solid var(--border); align-items: flex-start;
}
.roadmap-week:last-child { border-bottom: none; }
.week-badge {
  flex-shrink: 0; width: 44px; height: 44px; border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 0.62rem; font-weight: 500;
  line-height: 1.2; text-align: center;
}
.week-body {}
.week-title { font-size: 0.82rem; font-weight: 600; color: var(--text-1); margin-bottom: 3px; }
.week-detail { font-size: 0.76rem; color: var(--text-2); line-height: 1.4; }
.week-impact { font-size: 0.7rem; color: var(--emerald); margin-top: 4px; font-family: var(--font-mono); }

/* ══════════════════════════════
   SIMULATOR
══════════════════════════════ */
.sim-controls { display: flex; flex-direction: column; gap: 14px; }
.sim-row-item { }
.sim-output {
  background: var(--surface-2); border: 1px solid var(--border);
  border-radius: var(--radius-sm); padding: 16px; text-align: center;
  margin-top: 14px;
}
.sim-before-after {
  display: flex; align-items: center; justify-content: center; gap: 14px;
  margin: 8px 0;
}
.sim-score-box {
  font-family: var(--font-mono); font-size: 2rem; font-weight: 500;
}
.sim-arrow { font-size: 1.4rem; color: var(--text-3); }
.sim-improvement { font-size: 0.8rem; color: var(--emerald); font-family: var(--font-mono); margin-top: 4px; }

/* ══════════════════════════════
   COMPARISON PANEL
══════════════════════════════ */
.comparison-bars { }
.comp-bar-item { display: flex; align-items: center; gap: 10px; margin-bottom: 12px; }
.comp-label { font-size: 0.76rem; color: var(--text-2); min-width: 90px; }
.comp-track { flex: 1; height: 8px; background: var(--surface-3); border-radius: 6px; overflow: hidden; }
.comp-fill { height: 100%; border-radius: 6px; transition: width 1s; }
.comp-val { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-3); min-width: 50px; text-align: right; }

/* ══════════════════════════════
   EMPTY / IDLE STATES
══════════════════════════════ */
.idle-state {
  display: flex; flex-direction: column; align-items: center;
  justify-content: center; padding: 28px 16px; gap: 8px;
  color: var(--text-3); text-align: center;
}
.idle-icon { font-size: 2rem; opacity: 0.4; }
.idle-text { font-size: 0.8rem; line-height: 1.5; }

/* ══════════════════════════════
   TOAST
══════════════════════════════ */
.toast {
  position: fixed; bottom: 28px; right: 28px; z-index: 9999;
  padding: 12px 20px; border-radius: var(--radius-sm);
  background: var(--surface-2); border: 1px solid var(--border-hi);
  color: var(--text-1); font-size: 0.82rem;
  backdrop-filter: blur(20px);
  box-shadow: var(--shadow-lg);
  transform: translateY(16px) scale(0.96); opacity: 0;
  transition: all 0.3s cubic-bezier(0.34,1.56,0.64,1);
  pointer-events: none; max-width: 320px;
}
.toast.show { transform: translateY(0) scale(1); opacity: 1; pointer-events: auto; }

/* ══════════════════════════════
   UTIL
══════════════════════════════ */
.flex { display: flex; }
.items-center { align-items: center; }
.gap-8 { gap: 8px; }
.gap-10 { gap: 10px; }
.mt-4 { margin-top: 4px; }
.mt-8 { margin-top: 8px; }
.mt-12 { margin-top: 12px; }
.mb-8 { margin-bottom: 8px; }
.divider { height: 1px; background: var(--border); margin: 14px 0; }
.text-muted { color: var(--text-3); font-size: 0.76rem; }
.text-mono { font-family: var(--font-mono); }
.text-accent { color: var(--blue-400); }
.text-teal { color: var(--teal-400); }
.badge {
  display: inline-flex; align-items: center; gap: 4px;
  font-size: 0.66rem; padding: 3px 10px; border-radius: 20px;
  font-family: var(--font-mono); font-weight: 500;
  border: 1px solid var(--border);
  background: var(--surface-3); color: var(--text-3);
}
.badge.blue { background: rgba(59,130,246,0.1); border-color: rgba(59,130,246,0.25); color: var(--blue-400); }
.badge.teal { background: rgba(20,184,166,0.1); border-color: rgba(20,184,166,0.25); color: var(--teal-400); }

/* Animate in */
@keyframes fadeUp { from { opacity:0; transform: translateY(12px); } to { opacity:1; transform: translateY(0); } }
.animate-in { animation: fadeUp 0.4s ease forwards; }

/* Scrollbar */
::-webkit-scrollbar { width: 5px; height: 5px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--surface-3); border-radius: 10px; }

/* ══════════════════════════════
   CHART CANVAS overrides
══════════════════════════════ */
canvas { max-width: 100%; }

/* ══════════════════════════════
   RESPONSIVE
══════════════════════════════ */
@media (max-width: 1200px) {
  .page { grid-template-columns: 300px 1fr; }
  .kpi-row { grid-template-columns: 1fr 1fr; }
  .charts-row { grid-template-columns: 1fr 1fr; }
  .intel-row { grid-template-columns: 1fr; }
  .sim-row { grid-template-columns: 1fr; }
}

@media (max-width: 880px) {
  .page { grid-template-columns: 1fr; }
  .sidebar { grid-row: auto; }
  .kpi-row { grid-template-columns: repeat(2, 1fr); }
  .charts-row { grid-template-columns: 1fr; }
}