/* ═══════════════════════════════════════════════
   RESET & CSS VARIABLES
═══════════════════════════════════════════════ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg:         #0d0f18;
  --surface:    #151824;
  --surface2:   #1c1f2e;
  --surface3:   #222538;
  --border:     #272a3d;
  --border2:    #313550;
  --text:       #e4e6f1;
  --text-muted: #7a80a0;
  --text-dim:   #4e5470;
  --accent:     #7b6cf6;
  --accent2:    #5b53d4;
  --gold:       #f5c842;
  --green:      #22d3a0;
  --red:        #f55;
  --radius:     10px;
  --radius-sm:  6px;
  --shadow:     0 4px 20px rgba(0,0,0,0.45);
  --sidebar-w:  268px;
  --topnav-h:   54px;
  --transition: 0.2s ease;
}

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

/* ── FULL-VIEWPORT LOCK — no body scroll ── */
body {
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", "Segoe UI", system-ui, sans-serif;
  line-height: 1.55;
  height: 100vh;
  overflow: hidden;           /* ← prevent page-level scroll */
  display: flex;
  flex-direction: column;
}

/* ═══════════════════════════════════════════════
   TOP NAV  — fixed height, never scrolls
═══════════════════════════════════════════════ */
.topnav {
  flex-shrink: 0;             /* ← never shrink */
  height: var(--topnav-h);
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  padding: 0 0.85rem;
  gap: 0.75rem;
  box-shadow: 0 2px 16px rgba(0,0,0,0.5);
  z-index: 300;
}

.topnav-left  { display: flex; align-items: center; gap: 0.65rem; flex-shrink: 0; }
.topnav-right { margin-left: auto; display: flex; align-items: center; gap: 0.75rem; flex-shrink: 0; }

/* Hamburger */
.sidebar-toggle {
  background: none;
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 6px 7px;
  transition: border-color var(--transition);
}
.sidebar-toggle span {
  display: block; width: 17px; height: 2px;
  background: var(--text-muted); border-radius: 2px;
  transition: background var(--transition);
}
.sidebar-toggle:hover span,
.sidebar-toggle.open span { background: var(--accent); }
.sidebar-toggle:hover      { border-color: var(--accent); }

/* Brand */
.brand { display: flex; align-items: center; gap: 0.55rem; }

/* PYCO Logo Badge */
.brand-logo {
  display: flex;
  align-items: center;
  gap: 0;
  background: linear-gradient(135deg, #7b6cf6 0%, #5b53d4 100%);
  border-radius: 8px;
  padding: 0.22rem 0.55rem;
  font-size: 0.95rem;
  font-weight: 900;
  letter-spacing: 0.02em;
  flex-shrink: 0;
  box-shadow: 0 2px 8px rgba(123,108,246,0.45);
  line-height: 1;
}
.brand-logo-py { color: #fff; }
.brand-logo-co { color: #f5c842; }

.brand-text-block {
  display: flex;
  flex-direction: column;
  gap: 0;
  line-height: 1.15;
}
.brand-name { font-size: 0.9rem; font-weight: 400; color: var(--text-muted); white-space: nowrap; }
.brand-name strong { color: var(--text); font-weight: 800; }
.brand-sub  { font-size: 0.62rem; font-weight: 600; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.06em; }

/* Main tabs */
.main-tabs {
  display: flex;
  align-items: center;
  gap: 2px;
  flex: 1;
  justify-content: center;
  overflow-x: auto;
  scrollbar-width: none;
}
.main-tabs::-webkit-scrollbar { display: none; }

.main-tab {
  background: none;
  border: none;
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 600;
  padding: 0.38rem 1rem;
  transition: all var(--transition);
  white-space: nowrap;
  flex-shrink: 0;
}
.main-tab:hover  { color: var(--text); background: var(--surface2); }
.main-tab.active {
  color: var(--accent);
  background: rgba(123,108,246,0.12);
  border: 1px solid rgba(123,108,246,0.3);
}

/* Currency Toggle */
.currency-toggle {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: 20px;
  padding: 0.25rem 0.6rem;
  cursor: pointer;
  user-select: none;
  transition: border-color var(--transition);
}
.currency-toggle:hover { border-color: var(--accent); }
.currency-lbl {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
}
.currency-lbl.active { color: var(--accent); }
.toggle-pill {
  width: 30px; height: 16px;
  background: var(--border2);
  border-radius: 10px;
  position: relative;
  transition: background var(--transition);
  flex-shrink: 0;
}
.toggle-pill::after {
  content: "";
  position: absolute;
  top: 2px; left: 2px;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--text-muted);
  transition: transform var(--transition), background var(--transition);
}
.currency-toggle.inr .toggle-pill  { background: var(--accent); }
.currency-toggle.inr .toggle-pill::after {
  transform: translateX(14px);
  background: #fff;
}
.currency-toggle.inr .currency-lbl.usd  { color: var(--text-muted); }
.currency-toggle.inr .currency-lbl.inr  { color: var(--accent); }

/* Top summary */
.total-summary { display: flex; flex-direction: column; align-items: flex-end; }
.summary-label { font-size: 0.65rem; color: var(--text-dim); text-transform: uppercase; letter-spacing: 0.05em; }
.summary-val   { font-size: 1.05rem; font-weight: 800; color: var(--accent); line-height: 1; }

/* ═══════════════════════════════════════════════
   SHELL  — fills remaining height, never overflows
═══════════════════════════════════════════════ */
.shell {
  display: grid;
  grid-template-columns: var(--sidebar-w) 1fr;
  flex: 1;
  min-height: 0;              /* ← critical for flex children to shrink */
  overflow: hidden;           /* ← children handle their own scroll */
  transition: grid-template-columns var(--transition);
}

.shell.sidebar-closed {
  grid-template-columns: 0 1fr;
}
.shell.sidebar-closed .sidebar {
  overflow: hidden;
  border-right-color: transparent;
}

/* ═══════════════════════════════════════════════
   SIDEBAR  — fixed height, independent scroll
═══════════════════════════════════════════════ */
.sidebar {
  background: var(--surface);
  border-right: 1px solid var(--border);
  display: flex;
  flex-direction: column;
  height: 100%;               /* ← fill shell row height */
  overflow: hidden;           /* ← stab-panels scroll internally */
  transition: border-color var(--transition);
}

/* Sidebar Tabs strip — never scrolls */
.sidebar-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.stab {
  background: none;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.72rem;
  font-weight: 700;
  padding: 0.6rem 0.15rem;
  text-align: center;
  transition: all var(--transition);
  text-transform: uppercase;
  letter-spacing: 0.04em;
  white-space: nowrap;
}
.stab:hover  { color: var(--text); background: var(--surface2); }
.stab.active { color: var(--accent); border-bottom-color: var(--accent); background: rgba(123,108,246,0.07); }

/* Stab panels — each one fills and scrolls */
.stab-panel         { display: none; }
.stab-panel.active  {
  display: flex;
  flex-direction: column;
  flex: 1;
  overflow-y: auto;           /* ← only sidebar content scrolls */
  overflow-x: hidden;
}

/* Sidebar section block */
.sidebar-section {
  padding: 0.85rem 0.9rem;
  border-bottom: 1px solid var(--border);
  flex-shrink: 0;
}

.sidebar-section-title {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-muted);
  margin-bottom: 0.7rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.stab-actions { display: flex; gap: 0.3rem; }
.mini-btn {
  background: var(--surface3);
  border: 1px solid var(--border2);
  border-radius: 4px;
  color: var(--text-muted);
  cursor: pointer;
  font-size: 0.68rem;
  font-weight: 700;
  padding: 0.1rem 0.45rem;
  text-transform: uppercase;
  transition: all var(--transition);
}
.mini-btn:hover { color: var(--accent); border-color: var(--accent); }

/* Preset list */
.preset-list { display: flex; flex-direction: column; gap: 0.35rem; }

.preset-item {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  cursor: pointer;
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.5rem 0.65rem;
  text-align: left;
  transition: all var(--transition);
  width: 100%;
}
.preset-item:hover  { border-color: var(--accent); background: var(--surface3); }
.preset-item.active { border-color: var(--accent); background: rgba(123,108,246,0.12); }

.preset-icon { font-size: 1.1rem; flex-shrink: 0; }
.preset-info { display: flex; flex-direction: column; }
.preset-name { font-size: 0.82rem; font-weight: 700; color: var(--text); }
.preset-desc { font-size: 0.68rem; color: var(--text-muted); }

/* Form groups */
.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.28rem;
  margin-bottom: 0.65rem;
}
.form-group:last-child { margin-bottom: 0; }

.form-group label {
  font-size: 0.72rem;
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.04em;
}

.form-group input[type="number"],
.form-group input[type="text"] {
  background: var(--surface3);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 600;
  outline: none;
  padding: 0.42rem 0.6rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
}
.form-group input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(123,108,246,0.18);
}

.hint { font-size: 0.68rem; color: var(--text-dim); }

.computed-val {
  background: var(--surface3);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--accent);
  font-size: 0.92rem;
  font-weight: 700;
  padding: 0.42rem 0.6rem;
}

/* Provider list */
.provider-list { display: flex; flex-direction: column; gap: 0.3rem; }

.provider-item {
  align-items: center;
  cursor: pointer;
  display: grid;
  grid-template-columns: 18px 10px 1fr auto;
  gap: 0.45rem;
  padding: 0.45rem 0.5rem;
  border-radius: var(--radius-sm);
  border: 1px solid transparent;
  transition: all var(--transition);
}
.provider-item:hover { background: var(--surface2); border-color: var(--border); }
.provider-item input[type=checkbox] { accent-color: var(--pcolor); cursor: pointer; }
.provider-dot { width: 10px; height: 10px; border-radius: 50%; }
.provider-item-name { font-size: 0.82rem; font-weight: 600; color: var(--text); }
.provider-count {
  font-size: 0.68rem;
  font-weight: 700;
  color: var(--text-dim);
  background: var(--surface3);
  padding: 0.08rem 0.38rem;
  border-radius: 10px;
}

/* Radio & Checkbox groups */
.radio-group, .checkbox-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.radio-item, .check-item {
  align-items: center;
  cursor: pointer;
  display: flex;
  gap: 0.5rem;
  font-size: 0.82rem;
  color: var(--text);
  padding: 0.28rem 0.38rem;
  border-radius: var(--radius-sm);
  transition: background var(--transition);
}
.radio-item:hover, .check-item:hover { background: var(--surface2); }
.radio-item input, .check-item input { accent-color: var(--accent); cursor: pointer; }

.tier-dot {
  width: 8px; height: 8px; border-radius: 50%;
  display: inline-block; flex-shrink: 0;
}
.tier-dot.flagship  { background: #a89fff; }
.tier-dot.efficient { background: #5ecfb0; }
.tier-dot.budget    { background: #6fd1ff; }
.tier-dot.reasoning { background: #f0c060; }

/* ═══════════════════════════════════════════════
   MAIN CONTENT  — fills height, flex column, no scroll here
═══════════════════════════════════════════════ */
.content {
  height: 100%;               /* ← fill shell row */
  overflow: hidden;           /* ← tab panels handle their own scroll */
  padding: 0;
  display: flex;
  flex-direction: column;
}

/* Tab panels — each fills and manages scroll internally */
.tab-panel        { display: none; flex-direction: column; height: 100%; overflow: hidden; }
.tab-panel.active { display: flex; }

/* Content toolbar — always pinned at top, never scrolls */
.content-toolbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--surface);
  border-bottom: 1px solid var(--border);
  padding: 0.55rem 1.1rem;
  flex-shrink: 0;
  gap: 0.75rem;
  z-index: 100;
  box-shadow: 0 2px 10px rgba(0,0,0,0.3);
}

/* Results container — this is the ONLY thing that scrolls in Compare */
.results-grid,
.results-list {
  flex: 1;
  overflow-y: auto;
  overflow-x: hidden;
  padding: 1rem 1.1rem 1.1rem;
  min-height: 0;
}

/* ── Search wrap ── */
.toolbar-search-wrap {
  display: flex;
  align-items: center;
  flex: 1;
  background: var(--surface2);
  border: 1.5px solid var(--border2);
  border-radius: var(--radius-sm);
  padding: 0 0.55rem;
  gap: 0.4rem;
  transition: border-color var(--transition), box-shadow var(--transition);
}
.toolbar-search-wrap:focus-within {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(123,108,246,0.18);
}

.toolbar-search-icon {
  font-size: 0.85rem;
  flex-shrink: 0;
  color: var(--text-muted);
  pointer-events: none;
  line-height: 1;
}

.toolbar-search {
  background: transparent;
  border: none;
  color: var(--text);
  font-size: 0.88rem;
  font-weight: 500;
  outline: none;
  padding: 0.42rem 0;
  width: 100%;
  min-width: 0;
}
.toolbar-search::placeholder { color: var(--text-dim); font-weight: 400; }

.toolbar-search-clear {
  background: none;
  border: none;
  color: var(--text-dim);
  cursor: pointer;
  font-size: 0.72rem;
  padding: 0.1rem 0.2rem;
  border-radius: 4px;
  line-height: 1;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition), color var(--transition), background var(--transition);
  flex-shrink: 0;
}
.toolbar-search-clear.visible {
  opacity: 1;
  pointer-events: auto;
}
.toolbar-search-clear:hover {
  color: var(--text);
  background: var(--surface3);
}

/* ── Toolbar right (count + view toggle) ── */
.toolbar-right {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-shrink: 0;
}

.result-count { font-size: 0.8rem; color: var(--text-muted); font-weight: 600; white-space: nowrap; }

.view-toggle { display: flex; gap: 4px; }
.view-btn {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-muted);
  cursor: pointer;
  font-size: 1rem;
  line-height: 1;
  padding: 0.28rem 0.5rem;
  transition: all var(--transition);
}
.view-btn:hover  { color: var(--text); }
.view-btn.active {
  color: var(--accent);
  background: rgba(123,108,246,0.15);
  border-color: rgba(123,108,246,0.4);
}

/* ═══════════════════════════════════════════════
   RESULTS GRID
═══════════════════════════════════════════════ */
.results-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 0.9rem;
  /* scroll / layout handled by the rule above */
  align-content: start;
}

/* Result Card */
.result-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  overflow: hidden;
  padding: 0.95rem 0.95rem 0.8rem;
  position: relative;
  transition: transform var(--transition), box-shadow var(--transition), border-color var(--transition);
}

.card-top-bar {
  position: absolute;
  top: 0; left: 0; right: 0;
  height: 3px;
  border-radius: var(--radius) var(--radius) 0 0;
}

.result-card:hover {
  border-color: var(--accent);
  box-shadow: 0 6px 24px rgba(0,0,0,0.5);
  transform: translateY(-2px);
}

.result-card.best {
  border-color: var(--gold);
  box-shadow: 0 0 0 1px var(--gold), var(--shadow);
}
.result-card.best .card-top-bar { background: var(--gold) !important; }

.best-label {
  position: absolute;
  top: 0.45rem; right: 0.55rem;
  background: var(--gold);
  color: #000;
  font-size: 0.65rem;
  font-weight: 800;
  padding: 0.1rem 0.45rem;
  border-radius: 20px;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.rank-badge {
  position: absolute;
  top: 0.45rem; right: 0.55rem;
  color: var(--text-dim);
  font-size: 0.72rem;
  font-weight: 700;
}

.card-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 0.4rem;
  margin-top: 0.15rem;
}

.card-provider {
  font-size: 0.68rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.card-model {
  font-size: 0.95rem;
  font-weight: 800;
  color: var(--text);
  line-height: 1.25;
}

.card-tier {
  border-radius: 20px;
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  padding: 0.12rem 0.45rem;
  text-transform: uppercase;
  white-space: nowrap;
  flex-shrink: 0;
}
.tier-flagship  { background: rgba(168,159,255,0.15); color: #a89fff; }
.tier-efficient { background: rgba(94,207,176,0.15);  color: #5ecfb0; }
.tier-budget    { background: rgba(111,209,255,0.15); color: #6fd1ff; }
.tier-reasoning { background: rgba(240,192,96,0.15);  color: #f0c060; }

.card-desc {
  font-size: 0.78rem;
  color: var(--text-muted);
  line-height: 1.4;
}

.card-specs {
  display: flex;
  gap: 0.35rem;
  flex-wrap: wrap;
}

.spec-tag {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 20px;
  color: var(--text-muted);
  font-size: 0.68rem;
  padding: 0.12rem 0.45rem;
}

.features-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.3rem;
}

.feature-chip {
  background: rgba(123,108,246,0.1);
  border: 1px solid rgba(123,108,246,0.22);
  border-radius: 20px;
  color: var(--accent);
  font-size: 0.65rem;
  font-weight: 600;
  padding: 0.1rem 0.42rem;
}

/* Pricing row — USD + INR */
.pricing-row {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.48rem 0.55rem;
  gap: 0.25rem;
}

.price-item {
  align-items: center;
  display: flex;
  flex-direction: column;
  gap: 0.04rem;
}

.price-label {
  color: var(--text-dim);
  font-size: 0.62rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.price-value {
  color: var(--text);
  font-size: 0.82rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
}
.per { color: var(--text-dim); font-size: 0.58rem; font-weight: 400; }

/* INR sub-value */
.price-inr {
  color: var(--text-dim);
  font-size: 0.65rem;
  font-weight: 500;
}

.total-cost {
  align-items: center;
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  display: flex;
  justify-content: space-between;
  padding: 0.48rem 0.65rem;
}

.total-label {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.total-label-main { color: var(--text-muted); font-size: 0.75rem; font-weight: 700; }
.total-label-sub  { color: var(--text-dim);   font-size: 0.65rem; }

.total-value {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: 0;
}
.total-usd { font-size: 1.05rem; font-weight: 900; letter-spacing: -0.02em; }
.total-inr { font-size: 0.72rem; font-weight: 600; color: var(--text-muted); }

.cost-bar-wrap {
  background: var(--border);
  border-radius: 4px;
  height: 3px;
  overflow: hidden;
}
.cost-bar {
  border-radius: 4px;
  height: 100%;
  transition: width 0.5s ease;
}

/* ═══════════════════════════════════════════════
   LIST VIEW
═══════════════════════════════════════════════ */
.results-list {
  display: flex;
  flex-direction: column;
  gap: 3px;
  align-content: start;
}

.list-row {
  align-items: center;
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  display: grid;
  grid-template-columns: 28px 22px 1fr 76px 88px 60px 68px 68px 100px 26px;
  gap: 0.45rem;
  padding: 0.5rem 0.75rem;
  transition: background var(--transition), border-color var(--transition);
}
.list-row:hover { background: var(--surface2); border-color: var(--accent); }
.list-row.best  { border-left-color: var(--gold); }

.list-rank   { color: var(--text-dim); font-size: 0.72rem; font-weight: 700; }
.list-provider { font-size: 0.95rem; }
.list-model  { display: flex; flex-direction: column; gap: 1px; }
.lm-name     { font-size: 0.82rem; font-weight: 700; color: var(--text); }
.lm-provider { font-size: 0.67rem; color: var(--text-muted); }
.list-speed  { color: var(--text-muted); font-size: 0.75rem; }
.list-ctx    { color: var(--text-muted); font-size: 0.8rem; font-weight: 600; text-align: right; }
.list-input,
.list-output {
  color: var(--text-muted); font-size: 0.78rem; text-align: right;
  display: flex; flex-direction: column; gap: 1px;
}
.list-input .inr-sub,
.list-output .inr-sub { font-size: 0.62rem; color: var(--text-dim); }
.list-total  {
  font-size: 0.9rem; font-weight: 800; text-align: right;
  display: flex; flex-direction: column; gap: 1px;
}
.list-total .inr-sub { font-size: 0.65rem; color: var(--text-muted); font-weight: 500; }
.list-badge  { text-align: center; font-size: 0.88rem; }

/* ═══════════════════════════════════════════════
   EMPTY STATE
═══════════════════════════════════════════════ */
.empty-state {
  align-items: center;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  grid-column: 1 / -1;
  padding: 4rem 2rem;
  text-align: center;
}
.empty-icon  { font-size: 2.8rem; }
.empty-state p { color: var(--text-muted); }
.empty-state button {
  background: var(--accent);
  border: none;
  border-radius: var(--radius-sm);
  color: #fff;
  cursor: pointer;
  font-size: 0.82rem;
  font-weight: 700;
  padding: 0.48rem 1.1rem;
  transition: background var(--transition);
}
.empty-state button:hover { background: var(--accent2); }

/* ═══════════════════════════════════════════════
   CHART TAB
═══════════════════════════════════════════════ */

/* Chart, Specs, BestPick — full-height scroll panels with padding */
#tab-chart,
#tab-specs,
#tab-bestpick {
  overflow-y: auto;
  overflow-x: hidden;
  padding: 1.1rem;
  gap: 0.9rem;
}

.chart-header {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.9rem 1.1rem;
}
.chart-header h2 { font-size: 1rem; font-weight: 700; margin-bottom: 0.1rem; }
.chart-sub       { font-size: 0.78rem; color: var(--text-muted); }

.chart-bars {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  flex-direction: column;
  gap: 0.55rem;
  padding: 1.1rem;
}

.bar-row {
  align-items: center;
  display: grid;
  gap: 0.65rem;
  grid-template-columns: 20px 190px 1fr;
}

.bar-rank  { color: var(--text-dim); font-size: 0.72rem; font-weight: 700; text-align: center; }

.bar-label {
  color: var(--text);
  font-size: 0.8rem;
  overflow: hidden;
  text-align: right;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.bar-track {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: 6px;
  height: 30px;
  overflow: hidden;
}

.bar-fill {
  align-items: center;
  border-radius: 6px;
  display: flex;
  height: 100%;
  justify-content: flex-end;
  min-width: 52px;
  padding-right: 0.55rem;
  transition: width 0.6s ease;
}

.bar-value {
  color: #fff;
  font-size: 0.75rem;
  font-weight: 700;
  text-shadow: 0 1px 4px rgba(0,0,0,0.6);
}

/* ═══════════════════════════════════════════════
   SPECS TAB
═══════════════════════════════════════════════ */
.specs-toolbar {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 0.65rem 0.9rem;
  position: sticky;
  top: 0;
  z-index: 50;
  box-shadow: 0 2px 12px rgba(0,0,0,0.25);
}

.specs-toolbar input {
  background: var(--surface2);
  border: 1px solid var(--border2);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-size: 0.85rem;
  outline: none;
  padding: 0.45rem 0.75rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  width: 100%;
  max-width: 360px;
}
.specs-toolbar input:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(123,108,246,0.18);
}

.specs-table-wrap {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow-x: auto;
}

.specs-table {
  border-collapse: collapse;
  font-size: 0.8rem;
  width: 100%;
  min-width: 720px;
}

.specs-table th {
  background: var(--surface2);
  border-bottom: 1px solid var(--border);
  color: var(--text-muted);
  font-size: 0.68rem;
  font-weight: 700;
  letter-spacing: 0.05em;
  padding: 0.65rem 0.9rem;
  text-align: left;
  text-transform: uppercase;
  white-space: nowrap;
}

.specs-table td {
  border-bottom: 1px solid var(--border);
  color: var(--text);
  padding: 0.55rem 0.9rem;
  vertical-align: middle;
}
.specs-table td.num { font-weight: 700; text-align: right; font-variant-numeric: tabular-nums; }
.specs-table td.feat-cell { max-width: 240px; }
.specs-table tbody tr:hover { background: var(--surface2); }
.specs-table tbody tr:last-child td { border-bottom: none; }

/* ═══════════════════════════════════════════════
   BEST PICK TAB
═══════════════════════════════════════════════ */
.bestpick-grid {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.bestpick-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-left: 4px solid var(--accent);
  border-radius: var(--radius);
  display: grid;
  grid-template-columns: 50px 1fr 1fr;
  grid-template-rows: auto auto auto auto;
  gap: 0.25rem 0.9rem;
  padding: 1rem 1.1rem;
  align-items: start;
  transition: transform var(--transition), box-shadow var(--transition);
}
.bestpick-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow);
}

.bp-icon     { font-size: 1.8rem; grid-row: 1/5; align-self: center; text-align: center; }
.bp-label    { font-size: 0.68rem; font-weight: 700; text-transform: uppercase; letter-spacing: 0.06em; color: var(--text-muted); }
.bp-model    { font-size: 1.05rem; font-weight: 800; }
.bp-provider { font-size: 0.78rem; color: var(--text-muted); }
.bp-extra    { font-size: 0.9rem; font-weight: 700; color: var(--text); grid-column: 3; grid-row: 2; }
.bp-pricing  {
  display: flex; gap: 0.65rem;
  font-size: 0.75rem; color: var(--text-muted);
  grid-column: 2/4; flex-wrap: wrap;
}
.bp-features {
  display: flex; flex-wrap: wrap; gap: 0.28rem;
  grid-column: 1/4;
}

.bestpick-divider {
  font-size: 0.72rem;
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  padding: 0.2rem 0;
  border-top: 1px solid var(--border);
  margin-top: 0.25rem;
}

.provider-summary-row {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 0.65rem;
}

.provider-summary-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-top: 3px solid var(--accent);
  border-radius: var(--radius);
  padding: 0.75rem;
  text-align: center;
  transition: transform var(--transition);
}
.provider-summary-card:hover { transform: translateY(-2px); }

.ps-logo  { font-size: 1.5rem; margin-bottom: 0.15rem; }
.ps-name  { font-size: 0.8rem; font-weight: 700; color: var(--text); }
.ps-count { font-size: 0.7rem; color: var(--text-muted); }
.ps-min   { font-size: 0.8rem; font-weight: 700; color: var(--accent); margin-top: 0.15rem; }

/* ═══════════════════════════════════════════════
   FOOTER
═══════════════════════════════════════════════ */
.footer {
  flex-shrink: 0;
  background: var(--surface);
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 0.72rem;
  padding: 0.6rem 1.25rem;
  text-align: center;
  display: flex;
  flex-direction: column;
  gap: 0.2rem;
}
.footer-copy {
  font-size: 0.7rem;
  color: var(--text-dim);
  letter-spacing: 0.03em;
}
.footer-copy strong {
  color: var(--accent);
  font-weight: 700;
}
.footer-copy a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 700;
}
.footer-copy a:hover {
  text-decoration: underline;
  opacity: 0.85;
}
.brand-sub a {
  color: inherit;
  text-decoration: none;
  border-bottom: 1px dashed currentColor;
}
.brand-sub a:hover {
  opacity: 0.8;
}

/* ═══════════════════════════════════════════════
   CUSTOM SCROLLBAR
═══════════════════════════════════════════════ */
::-webkit-scrollbar        { width: 5px; height: 5px; }
::-webkit-scrollbar-track  { background: transparent; }
::-webkit-scrollbar-thumb  { background: var(--border2); border-radius: 3px; }
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

/* ═══════════════════════════════════════════════
   MEDIA QUERIES
   Breakpoints:
     xl  : 1440px+   (4K / large monitors)
     lg  : 1200px    (desktop)
     md  : 992px     (small desktop / laptop)
     sm  : 768px     (tablet landscape / large tablet)
     xs  : 576px     (tablet portrait)
     xxs : 375px     (mobile)
═══════════════════════════════════════════════ */

/* ── XL — 1440px + ─────────────────────────── */
@media (min-width: 1440px) {
  :root { --sidebar-w: 290px; }
  .results-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
  .bar-row      { grid-template-columns: 22px 220px 1fr; }
  .main-tab     { font-size: 0.9rem; padding: 0.4rem 1.2rem; }
}

/* ── LG — up to 1200px ──────────────────────── */
@media (max-width: 1200px) {
  :root { --sidebar-w: 255px; }
  .results-grid { grid-template-columns: repeat(auto-fill, minmax(245px, 1fr)); }
  .bar-row      { grid-template-columns: 20px 170px 1fr; }
}

/* ── MD — up to 992px (laptop) ──────────────── */
@media (max-width: 992px) {
  :root { --sidebar-w: 235px; }

  .results-grid { grid-template-columns: repeat(auto-fill, minmax(230px, 1fr)); gap: 0.75rem; }

  .main-tab { font-size: 0.78rem; padding: 0.35rem 0.75rem; }

  .bar-row  { grid-template-columns: 18px 140px 1fr; }
  .bar-label { font-size: 0.75rem; }

  /* List: hide less critical columns */
  .list-row {
    grid-template-columns: 24px 20px 1fr 70px 58px 64px 95px 24px;
  }
  .list-speed { display: none; }
}

/* ── SM — up to 768px (tablet landscape) ───── */
@media (max-width: 768px) {
  :root {
    --sidebar-w: 260px;
    --topnav-h: 52px;
  }

  body { overflow: hidden; }

  /* Sidebar becomes an off-canvas overlay */
  .shell {
    grid-template-columns: 1fr;
    position: relative;
  }

  .sidebar {
    position: fixed;
    top: var(--topnav-h);
    left: 0;
    width: var(--sidebar-w);
    height: calc(100vh - var(--topnav-h));
    z-index: 250;
    transform: translateX(-100%);
    transition: transform var(--transition), box-shadow var(--transition);
    box-shadow: none;
  }

  /* Open state — toggled by JS adding class to .shell */
  .shell:not(.sidebar-closed) .sidebar {
    transform: translateX(0);
    box-shadow: 4px 0 24px rgba(0,0,0,0.6);
  }

  /* Overlay backdrop */
  .shell:not(.sidebar-closed)::before {
    content: "";
    position: fixed;
    inset: 0;
    top: var(--topnav-h);
    background: rgba(0,0,0,0.55);
    z-index: 240;
  }

  .content { height: 100%; }

  /* Results: 2 columns on tablet */
  .results-grid { grid-template-columns: repeat(2, 1fr); gap: 0.65rem; }

  /* List: compact */
  .list-row {
    grid-template-columns: 20px 18px 1fr 60px 90px 22px;
  }
  .list-speed, .list-ctx, .list-input, .list-output, .list-tier { display: none; }

  /* Chart */
  .bar-row  { grid-template-columns: 18px 130px 1fr; }

  /* Best pick: 2 col layout */
  .bestpick-card {
    grid-template-columns: 44px 1fr;
    grid-template-rows: auto auto auto auto;
  }
  .bp-icon   { grid-row: 1/5; }
  .bp-extra  { grid-column: 2; grid-row: 3; }
  .bp-pricing { grid-column: 2/3; }
  .bp-features { grid-column: 1/3; }

  /* Main tabs: smaller */
  .main-tab { font-size: 0.75rem; padding: 0.32rem 0.6rem; }

  /* Hide summary text on tablet */
  .summary-label { display: none; }

  /* Search: full width, result count hidden */
  .toolbar-right .result-count { display: none; }
}

/* ── XS — up to 576px (tablet portrait / large phone) */
@media (max-width: 576px) {
  :root { --topnav-h: 50px; }

  /* Single column cards */
  .results-grid { grid-template-columns: 1fr; gap: 0.6rem; }

  .content { padding: 0.75rem; gap: 0.75rem; }

  /* Topnav: collapse some items */
  .topnav { padding: 0 0.6rem; gap: 0.5rem; }
  .brand-name { display: none; }
  .main-tab { padding: 0.3rem 0.55rem; font-size: 0.72rem; }

  /* Currency toggle: text labels off */
  .currency-lbl { display: none; }

  /* Chart: shorter labels */
  .bar-row  { grid-template-columns: 16px 110px 1fr; }
  .bar-label { font-size: 0.7rem; }
  .bar-track { height: 26px; }

  /* Hide topnav right summary */
  .topnav-right .total-summary { display: none; }

  /* Bestpick full width */
  .provider-summary-row { grid-template-columns: repeat(3, 1fr); }
}

/* ── XXS — up to 375px (mobile) ─────────────── */
@media (max-width: 375px) {
  :root {
    --topnav-h: 48px;
    --sidebar-w: 240px;
  }
  html { font-size: 13px; }

  .topnav { padding: 0 0.5rem; gap: 0.4rem; }
  .brand-icon { font-size: 1.1rem; }

  /* Tabs: icon-only on very small screens */
  .main-tab {
    font-size: 0;           /* hide text */
    padding: 0.35rem 0.55rem;
    min-width: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  /* Show just the emoji */
  .main-tab::first-letter { font-size: 1rem; }

  .content { padding: 0.6rem; gap: 0.6rem; }

  .results-grid { gap: 0.55rem; }

  .result-card { padding: 0.8rem 0.8rem 0.7rem; gap: 0.45rem; }
  .card-model  { font-size: 0.88rem; }
  .card-desc   { font-size: 0.72rem; }

  .pricing-row { padding: 0.4rem 0.45rem; }
  .price-value { font-size: 0.75rem; }

  .total-usd { font-size: 0.95rem; }
  .total-inr { font-size: 0.65rem; }

  .bar-row   { grid-template-columns: 14px 90px 1fr; gap: 0.5rem; }
  .bar-label { font-size: 0.65rem; }
  .bar-track { height: 24px; }
  .bar-value { font-size: 0.68rem; }

  .provider-summary-row { grid-template-columns: repeat(2, 1fr); }

  .specs-table { font-size: 0.72rem; }
  .specs-table th, .specs-table td { padding: 0.5rem 0.65rem; }
}

/* ── Print ───────────────────────────────────── */
@media print {
  body { overflow: visible; height: auto; background: #fff; color: #000; }
  .topnav, .sidebar, .footer, .sidebar-toggle, .view-toggle, .currency-toggle { display: none !important; }
  .shell  { display: block; }
  .content { overflow: visible; height: auto; padding: 0; }
  .tab-panel { display: flex !important; }
  .results-grid { grid-template-columns: repeat(3, 1fr); }
  .result-card  { break-inside: avoid; border: 1px solid #ccc; box-shadow: none; }
}