/* ============================================================
   Pharmacy Interactive — companion to DockFlow
   ============================================================ */

:root {
  /* DockFlow classic — crimson on near-black */
  --bg: #121212;
  --bg-2: #0d0d0d;
  --panel: #1a1a1a;
  --panel-2: #202020;
  --panel-3: #171717;
  --line: #2e2e2e;
  --line-soft: #262626;
  --txt: #f2f2f2;
  --txt-2: #d4d4d4;
  --muted: #9a9a9a;
  --red: #f87171;
  --red-dim: #ef4444;
  --cyan: #38bdf8;
  --cyan-dim: #0284c7;
  --indigo: #818cf8;
  --violet: #c084fc;
  --emerald: #34d399;
  --amber: #fbbf24;
  --orange: #fb923c;
  --rose: #fb7185;
  --pink: #f472b6;
  --blue: #60a5fa;
  --radius: 0px;
  --topbar-h: 63px;
  color-scheme: dark;
  --mono: ui-monospace, "SF Mono", "JetBrains Mono", Menlo, Consolas, monospace;
}

* { box-sizing: border-box; }

html, body { height: 100%; }

html {
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--topbar-h) + 12px);
}

body {
  margin: 0;
  background:
    radial-gradient(1200px 600px at 12% -10%, rgba(56, 189, 248, 0.04), transparent 60%),
    radial-gradient(900px 500px at 88% 0%, rgba(99, 102, 241, 0.03), transparent 55%),
    var(--bg);
  color: var(--txt);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Inter, Roboto, "Helvetica Neue", sans-serif;
  font-size: 14px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  overflow-x: clip;
  -webkit-tap-highlight-color: transparent;
}

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

:focus-visible { outline: 2px solid var(--red); outline-offset: 2px; }

::selection { background: rgba(56, 189, 248, 0.28); }

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: #3a3a3a; border-radius: 0; border: 2px solid var(--bg); }
::-webkit-scrollbar-thumb:hover { background: #4a4a4a; }

/* ---------------- Top bar ---------------- */

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  display: flex;
  flex-direction: column;
  padding: 0;
  background: rgba(14, 14, 18, 0.9);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--line);
}

.top-disclaimer-ribbon {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 4px 14px;
  background: rgba(245, 158, 11, 0.08);
  border-bottom: 1px solid rgba(245, 158, 11, 0.2);
  font-size: 11px;
  color: #cbd5e1;
  line-height: 1.4;
  text-align: center;
  width: 100%;
}
.ribbon-badge {
  font-weight: 800;
  color: #fbbf24;
  letter-spacing: 0.04em;
  font-size: 10.5px;
  white-space: nowrap;
}
.ribbon-text {
  color: #e2e8f0;
  font-size: 11px;
}

.topbar-main {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 8px max(14px, env(safe-area-inset-right)) 8px max(14px, env(safe-area-inset-left));
  width: 100%;
}

.brand {
  display: flex;
  align-items: center;
  gap: 11px;
  min-width: 0;
}
.brand-mark {
  width: 38px;
  height: 38px;
  border-radius: 0;
  display: grid;
  place-items: center;
  font-size: 18px;
  background: #0b0b0b;
  box-shadow: none;
  overflow: hidden;
  flex-shrink: 0;
}
.brand-mark img { display: block; width: 100%; height: 100%; object-fit: cover; }
.brand-title {
  font-size: 15px;
  font-weight: 700;
  letter-spacing: -0.015em;
  white-space: nowrap;
  background: linear-gradient(90deg, #ffd0da, #ffffff 55%, #ffb3c4);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.brand-sub {
  font-size: 10.5px;
  color: var(--muted);
  letter-spacing: 0.09em;
  text-transform: uppercase;
  white-space: nowrap;
}

/* Persistent Sticky Top EDU / Regulatory Tag */
.edu-tag-top {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 4px 11px;
  background: rgba(245, 158, 11, 0.09);
  border: 1px solid rgba(245, 158, 11, 0.38);
  border-radius: 999px;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: #fbbf24;
  white-space: nowrap;
  text-decoration: none;
  transition: background 0.15s, border-color 0.15s, color 0.15s, box-shadow 0.15s;
  flex-shrink: 0;
  cursor: default;
  user-select: none;
}
.edu-tag-top:hover {
  background: rgba(245, 158, 11, 0.2);
  border-color: rgba(245, 158, 11, 0.7);
  color: #fef08a;
  text-decoration: none;
  box-shadow: 0 0 14px rgba(245, 158, 11, 0.25);
}
.edu-tag-dot {
  width: 6.5px;
  height: 6.5px;
  border-radius: 50%;
  background: #fbbf24;
  box-shadow: 0 0 6px #fbbf24;
  animation: eduPulse 2.2s infinite ease-in-out;
}
.edu-sub-text {
  opacity: 0.85;
  font-size: 10px;
  letter-spacing: 0.02em;
}
@keyframes eduPulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.35; transform: scale(0.85); }
}

.search-wrap {
  position: relative;
  flex: 1;
  max-width: 440px;
  margin-left: auto;
}
.search-wrap input {
  width: 100%;
  padding: 9px 12px 9px 34px;
  border-radius: 0;
  border: 1px solid var(--line);
  background: #0a0a0a;
  color: var(--txt);
  font-size: 13px;
  font-family: inherit;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
}
.search-wrap input:focus {
  border-color: var(--cyan-dim);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.15);
}
.search-wrap input::placeholder { color: #7a7a7a; }
.search-wrap .search-icon {
  position: absolute;
  left: 11px;
  top: 50%;
  transform: translateY(-50%);
  color: #5a6b85;
  font-size: 13px;
  pointer-events: none;
}

.btn-link {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 12px;
  border-radius: 0;
  border: 1px solid var(--line);
  background: #0b1524;
  color: var(--txt-2);
  font-size: 12px;
  font-weight: 600;
  white-space: nowrap;
  transition: 0.15s;
}
.btn-link:hover { color: var(--txt); border-color: #2a3a58; text-decoration: none; }

/* ---------------- Layout ---------------- */

.shell {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  max-width: 1560px;
  margin: 0 auto;
  align-items: start;
}

.sidebar {
  position: sticky;
  top: var(--topbar-h);
  height: calc(100vh - var(--topbar-h));
  height: calc(100dvh - var(--topbar-h));
  overflow-y: auto;
  padding: 18px 12px 40px 18px;
  border-right: 1px solid var(--line-soft);
}

.nav-group { margin-bottom: 20px; }
.nav-group-title {
  display: flex;
  align-items: center;
  gap: 7px;
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.11em;
  text-transform: uppercase;
  color: #63748e;
  padding: 0 8px 8px;
}
.nav-group-title .num { color: #3f4f68; font-family: var(--mono); font-size: 9.5px; }
.nav-item {
  position: relative;
  z-index: 1;
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 7px 9px;
  border-radius: 0;
  color: var(--txt-2);
  font-size: 12.5px;
  line-height: 1.3;
  border-left: 2px solid transparent;
  transition: 0.14s;
  cursor: pointer;
}
.nav-item:hover { background: #0d1727; color: var(--txt); text-decoration: none; }
.nav-item.active {
  background: transparent;
  border-left-color: transparent;
  color: #ffffff;
  font-weight: 600;
}
.nav-item.active:hover { background: transparent; }

/* One sharp-edged highlight that glides between tools (Daydream spring feel). */
.nav-glider {
  position: absolute;
  top: 0;
  left: 0;
  width: 0;
  height: 0;
  border-radius: 0;
  background: rgba(59, 130, 246, 0.12);
  border-left: 2px solid #3b82f6;
  box-shadow: none;
  opacity: 0;
  pointer-events: none;
  z-index: 0;
  will-change: transform, width, height;
  transition:
    transform 0.44s cubic-bezier(0.22, 1.28, 0.36, 1),
    width 0.38s cubic-bezier(0.22, 1.28, 0.36, 1),
    height 0.38s cubic-bezier(0.22, 1.28, 0.36, 1),
    opacity 0.18s ease;
}
.nav-glider.on { opacity: 1; }

.content { padding: clamp(16px, 2vw, 26px) clamp(14px, 2.4vw, 26px) calc(70px + env(safe-area-inset-bottom)); min-width: 0; }

/* ---------------- Home ---------------- */

.hero {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 0;
  padding: 26px 28px;
  background:
    radial-gradient(600px 200px at 90% 0%, rgba(99, 102, 241, 0.18), transparent 70%),
    linear-gradient(160deg, #202020, #171717);
  margin-bottom: 26px;
}
.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image: radial-gradient(rgba(148, 163, 184, 0.16) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: linear-gradient(to left, black, transparent 62%);
  pointer-events: none;
}
.hero h1 {
  position: relative;
  margin: 0 0 8px;
  font-size: 25px;
  letter-spacing: -0.025em;
  font-weight: 800;
}
.hero h1 span {
  background: linear-gradient(90deg, #ff9db2, #a5b4fc);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero p {
  position: relative;
  margin: 0;
  max-width: 690px;
  color: var(--txt-2);
  font-size: 13px;
}
.hero-stats {
  position: relative;
  display: flex;
  flex-wrap: wrap;
  gap: 26px;
  margin-top: 20px;
}
.hero-stat b { display: block; font-size: 20px; font-weight: 800; color: #ffd0da; letter-spacing: -0.02em; }
.hero-stat span { font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.09em; color: var(--muted); }

.cat-section { margin-bottom: 30px; }
.cat-head {
  display: flex;
  align-items: baseline;
  gap: 10px;
  margin: 0 0 12px;
}
.cat-head h2 { margin: 0; font-size: 14px; font-weight: 700; letter-spacing: -0.01em; }
.cat-head .count { font-size: 11px; color: var(--muted); }

.card-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(248px, 1fr));
  gap: 12px;
}

.tool-card {
  display: block;
  padding: 14px 15px;
  border-radius: 0;
  border: 1px solid var(--line);
  background: linear-gradient(165deg, #202020, #171717);
  color: inherit;
  transition: 0.16s;
  position: relative;
  overflow: hidden;
}
.tool-card:hover {
  transform: translateY(-2px);
  border-color: #2b4568;
  box-shadow: 0 8px 22px -10px rgba(56, 189, 248, 0.35);
  text-decoration: none;
}
.tool-card .tc-icon { font-size: 17px; display: block; margin-bottom: 8px; }
.tool-card h3 { margin: 0 0 5px; font-size: 13px; font-weight: 700; color: #e8eefb; letter-spacing: -0.01em; }
.tool-card p { margin: 0; font-size: 11.5px; color: var(--muted); line-height: 1.45; }

/* ---------------- Tool page ---------------- */

.tool-head { margin-bottom: 20px; }
.crumbs { font-size: 11px; color: var(--muted); margin-bottom: 8px; }
.crumbs a { color: #7d8fa9; }
.tool-head h1 { margin: 0 0 6px; font-size: 22px; letter-spacing: -0.025em; font-weight: 800; }
.tool-head p { margin: 0; color: var(--txt-2); font-size: 13px; max-width: 780px; }

.layout-2 {
  display: grid;
  grid-template-columns: minmax(0, 340px) minmax(0, 1fr);
  gap: 16px;
  align-items: start;
}
.layout-2.wide-left { grid-template-columns: minmax(0, 420px) minmax(0, 1fr); }
.layout-split { display: grid; grid-template-columns: 1fr 1fr; gap: 16px; align-items: start; }
.stack { display: flex; flex-direction: column; gap: 16px; }

.panel {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: linear-gradient(170deg, rgba(26, 26, 26, 0.6), rgba(18, 18, 18, 0.92));
  padding: 16px 17px;
  min-width: 0;
}
.panel.tight { padding: 13px 14px; }
.panel-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 12px;
}
.panel-head h2, .panel-head h3 {
  margin: 0;
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: #a0a0a0;
}
.panel-head .hint { font-size: 10.5px; color: var(--muted); font-weight: 400; letter-spacing: 0; text-transform: none; }

/* ---------------- Form controls ---------------- */

.field { margin-bottom: 14px; }
.field:last-child { margin-bottom: 0; }
.field > label, .field-label {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 8px;
  font-size: 11.5px;
  font-weight: 600;
  color: #a9b8cd;
  margin-bottom: 6px;
}
.field-label .val, .field > label .val {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--cyan);
  font-weight: 600;
}
.field .sub { font-size: 10.5px; color: var(--muted); margin-top: 5px; line-height: 1.4; }

input[type="number"], input[type="text"], select {
  width: 100%;
  padding: 8px 10px;
  border-radius: 0;
  border: 1px solid #3a3a3a;
  background: #0a0a0a;
  color: var(--txt);
  font-family: var(--mono);
  font-size: 12.5px;
  outline: none;
}
input[type="number"]:focus, input[type="text"]:focus, select:focus {
  border-color: var(--cyan-dim);
  box-shadow: 0 0 0 3px rgba(56, 189, 248, 0.12);
}
select { font-family: inherit; cursor: pointer; }

.row { display: grid; grid-template-columns: 1fr 1fr; gap: 10px; }
.row-3 { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; }

input[type="range"] {
  -webkit-appearance: none;
  appearance: none;
  accent-color: #38bdf8;
  width: 100%;
  height: 22px;
  background: transparent;
  cursor: pointer;
  margin: 2px 0 0;
}
input[type="range"]::-webkit-slider-runnable-track {
  height: 6px;
  border-radius: 3px;
  background: #1e293b;
  border: 1px solid #334155;
  transition: background 0.15s ease;
}
input[type="range"]:hover::-webkit-slider-runnable-track {
  background: #253349;
}
input[type="range"]::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  margin-top: -6px;
  border-radius: 50%;
  background: #38bdf8;
  border: 2px solid #ffffff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.45);
  transition: transform 0.12s ease, background 0.12s ease;
}
input[type="range"]:hover::-webkit-slider-thumb {
  transform: scale(1.15);
  background: #7dd3fc;
}
input[type="range"]::-moz-range-track {
  height: 6px;
  border-radius: 3px;
  background: #1e293b;
  border: 1px solid #334155;
}
input[type="range"]::-moz-range-thumb {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: #38bdf8;
  border: 2px solid #ffffff;
  box-shadow: 0 1px 4px rgba(0, 0, 0, 0.45);
}

.range-bounds {
  display: flex;
  justify-content: space-between;
  font-size: 10px;
  color: #64748b;
  margin-top: 4px;
  font-family: var(--mono);
}
.range-bounds .range-min,
.range-bounds .range-max {
  letter-spacing: 0.02em;
}
.val-bounds {
  font-size: 10px;
  color: #64748b;
  font-weight: 400;
  margin-left: 6px;
  font-family: var(--mono);
}

.check {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 10px;
  border-radius: 0;
  border: 1px solid var(--line);
  background: #171717;
  font-size: 12px;
  color: var(--txt-2);
  cursor: pointer;
  user-select: none;
}
.check:hover { border-color: #2a3a58; }
.check input { accent-color: #38bdf8; margin: 0; }
.check.on { border-color: rgba(56, 189, 248, 0.45); background: rgba(56, 189, 248, 0.08); color: #d5f7ff; }

.segmented {
  display: flex;
  flex-wrap: wrap;
  gap: 4px;
  padding: 3px;
  border-radius: 0;
  border: 1px solid var(--line);
  background: #0a0a0a;
}
.segmented button {
  flex: 1;
  min-width: 62px;
  padding: 6px 8px;
  border-radius: 0;
  border: 0;
  background: transparent;
  color: var(--txt-2);
  font-family: inherit;
  font-size: 11.5px;
  font-weight: 600;
  cursor: pointer;
  transition: 0.14s;
  white-space: nowrap;
}
.segmented button:hover { background: rgba(255, 255, 255, 0.045); color: var(--txt); }
.segmented button.active {
  background: #1e293b; border: 1px solid #334155;
  color: #f8fafc;
  box-shadow: none;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 9px 14px;
  border-radius: 0;
  border: 1px solid #3a3a3a;
  background: #0d1727;
  color: var(--txt);
  font-family: inherit;
  font-size: 12px;
  font-weight: 600;
  cursor: pointer;
  transition: 0.15s;
}
.btn:hover { border-color: #33496e; background: #12203a; }
.btn.primary {
  border-color: transparent;
  background: #2563eb; border: 1px solid #3b82f6;
  color: #fff;
  box-shadow: none;
}
.btn.primary:hover { filter: brightness(1.08); }
.btn.ghost { background: transparent; }
.btn.sm { padding: 6px 10px; font-size: 11px; }
.btn:disabled { opacity: 0.45; cursor: not-allowed; }

/* ---------------- Data display ---------------- */

canvas.chart {
  display: block;
  width: 100%;
  height: clamp(200px, 26vw, 260px);
}
.chart-tall { height: clamp(240px, 32vw, 320px); }
.chart-short { height: clamp(160px, 20vw, 190px); }

.legend { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 10px; }
.legend-item { display: inline-flex; align-items: center; gap: 6px; font-size: 10.5px; color: var(--muted); }
.legend-swatch { width: 9px; height: 9px; border-radius: 0; flex-shrink: 0; }
.legend-swatch.line { height: 3px; width: 14px; border-radius: 0; }

.stat-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(104px, 1fr)); gap: 9px; }
.stat {
  padding: 10px 11px;
  border-radius: 0;
  border: 1px solid var(--line-soft);
  background: #171717;
}
.stat .k { font-size: 9.5px; text-transform: uppercase; letter-spacing: 0.08em; color: var(--muted); margin-bottom: 4px; }
.stat .v { font-family: var(--mono); font-size: 15px; font-weight: 700; color: #d9f6ff; letter-spacing: -0.02em; }
.stat .v small { font-size: 9.5px; font-weight: 500; color: var(--muted); margin-left: 3px; letter-spacing: 0; }
.stat.ok .v { color: #6ee7b7; }
.stat.warn .v { color: #fcd34d; }
.stat.bad .v { color: #fda4af; }

.table-wrap {
  max-width: 100%;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  -webkit-overflow-scrolling: touch;
}

table.grid { width: 100%; border-collapse: collapse; font-size: 11.5px; }
table.grid th {
  text-align: left;
  font-size: 9.5px;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: #7c8ca6;
  font-weight: 600;
  padding: 7px 8px;
  border-bottom: 1px solid var(--line);
  white-space: nowrap;
}
table.grid td { padding: 7px 8px; border-bottom: 1px solid var(--line-soft); color: var(--txt-2); vertical-align: top; }
table.grid tr:last-child td { border-bottom: 0; }
table.grid tr.hi td { background: rgba(56, 189, 248, 0.08); color: #e0f2fe; }
table.grid td.num { font-family: var(--mono); white-space: nowrap; }

.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  padding: 3px 8px;
  border-radius: 0;
  font-size: 10.5px;
  font-weight: 600;
  border: 1px solid transparent;
  white-space: nowrap;
}
.chip.cyan { background: rgba(56, 189, 248, 0.12); color: #7dd3fc; border-color: rgba(56, 189, 248, 0.3); }
.chip.indigo { background: rgba(99, 102, 241, 0.13); color: #b4bcfd; border-color: rgba(99, 102, 241, 0.3); }
.chip.emerald { background: rgba(52, 211, 153, 0.12); color: #7ce8bf; border-color: rgba(52, 211, 153, 0.3); }
.chip.amber { background: rgba(251, 191, 36, 0.12); color: #fcd97a; border-color: rgba(251, 191, 36, 0.28); }
.chip.orange { background: rgba(251, 146, 60, 0.13); color: #fdbb8c; border-color: rgba(251, 146, 60, 0.3); }
.chip.rose { background: rgba(251, 113, 133, 0.13); color: #fda8b6; border-color: rgba(251, 113, 133, 0.32); }
.chip.violet { background: rgba(192, 132, 252, 0.13); color: #dcc0fd; border-color: rgba(192, 132, 252, 0.3); }
.chip.gray { background: rgba(148, 163, 184, 0.1); color: #a9b8cd; border-color: rgba(148, 163, 184, 0.22); }

.note {
  font-size: 11.5px;
  color: var(--txt-2);
  border-left: 2px solid #4a4a4a;
  padding: 2px 0 2px 11px;
  margin: 12px 0 0;
  line-height: 1.55;
}
.note.warn { border-left-color: var(--amber); color: #f3dba4; }
.note.bad { border-left-color: var(--rose); color: #f8c3cb; }
.note.good { border-left-color: var(--emerald); color: #a9eed3; }
.note b { color: #fff; }

.verdict {
  border-radius: 0;
  padding: 13px 14px;
  border: 1px solid var(--line);
  background: #171717;
}
.verdict .vt { font-size: 10px; letter-spacing: 0.1em; text-transform: uppercase; color: var(--muted); margin-bottom: 5px; }
.verdict .vv { font-size: 16px; font-weight: 800; letter-spacing: -0.02em; }
.verdict.good { border-color: rgba(52, 211, 153, 0.35); background: rgba(16, 185, 129, 0.07); }
.verdict.good .vv { color: #6ee7b7; }
.verdict.warn { border-color: rgba(251, 191, 36, 0.35); background: rgba(251, 191, 36, 0.07); }
.verdict.warn .vv { color: #fcd34d; }
.verdict.bad { border-color: rgba(251, 113, 133, 0.35); background: rgba(244, 63, 94, 0.07); }
.verdict.bad .vv { color: #fda4af; }
.verdict.info { border-color: rgba(56, 189, 248, 0.35); background: rgba(56, 189, 248, 0.06); }
.verdict.info .vv { color: #bae6fd; }

.svg-wrap { width: 100%; overflow-x: auto; }
.svg-wrap svg { display: block; max-width: 100%; height: auto; }

/* ---------------- Misc ---------------- */

.empty {
  padding: 30px 16px;
  text-align: center;
  color: var(--muted);
  font-size: 12px;
}

.mono { font-family: var(--mono); }
.small { font-size: 11px; }
.muted { color: var(--muted); }
.nowrap { white-space: nowrap; }
.hidden { display: none !important; }

.tag-row { display: flex; flex-wrap: wrap; gap: 6px; }

.tool-tabs { display: flex; gap: 5px; margin-bottom: 14px; flex-wrap: wrap; }

.draggable { cursor: grab; }
.draggable:active { cursor: grabbing; }
.dropzone-over { outline: 2px dashed rgba(56, 189, 248, 0.6); outline-offset: 3px; background: rgba(56, 189, 248, 0.06); }

.steps-list { display: flex; flex-direction: column; gap: 6px; }
.step-item {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  padding: 9px 11px;
  border-radius: 0;
  border: 1px solid var(--line-soft);
  background: #171717;
  font-size: 12px;
  color: var(--txt-2);
  transition: 0.18s;
  cursor: pointer;
}
.step-item:hover { border-color: #2a3a58; }
.step-item .idx {
  flex-shrink: 0;
  width: 19px; height: 19px;
  border-radius: 50%;
  display: grid; place-items: center;
  font-size: 10px; font-weight: 700;
  background: #17233a; color: #a0a0a0;
  font-family: var(--mono);
}
.step-item.active {
  border-color: rgba(56, 189, 248, 0.55);
  background: rgba(56, 189, 248, 0.09);
  color: #f0f9ff;
}
.step-item.active .idx { background: var(--cyan); color: #042f36; }
.step-item.done .idx { background: rgba(52, 211, 153, 0.2); color: #6ee7b7; }

.foot {
  margin-top: 40px;
  padding-top: 16px;
  border-top: 1px solid var(--line-soft);
  font-size: 10.5px;
  color: #56657d;
  line-height: 1.6;
  max-width: 860px;
}

/* ------------------------------------------------------------------ */
/* Responsive form factors                                             */
/* ------------------------------------------------------------------ */

/* Ultrawide & large desktop */
@media (min-width: 1600px) {
  .shell { max-width: 1720px; }
  .content { padding: 30px 34px 80px; }
  .layout-2 { grid-template-columns: minmax(0, 380px) minmax(0, 1fr); }
  .layout-2.wide-left { grid-template-columns: minmax(0, 460px) minmax(0, 1fr); }
  .hero h1 { font-size: 29px; }
  .card-grid { grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); }
  .tool-card { padding: 17px 18px; }
}
@media (min-width: 2200px) {
  .shell { max-width: 2000px; }
  .hero h1 { font-size: 33px; }
  .hero p { max-width: 840px; font-size: 14px; }
  .card-grid { grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); }
}

/* Laptop */
@media (max-width: 1280px) {
  .layout-2 { grid-template-columns: minmax(0, 300px) minmax(0, 1fr); }
  .layout-2.wide-left { grid-template-columns: minmax(0, 370px) minmax(0, 1fr); }
  .sidebar { padding: 16px 10px 32px 14px; }
}

/* Tablet / small laptop — single column with a sticky horizontal tool rail */
@media (max-width: 1080px) {
  .shell { grid-template-columns: 1fr; max-width: none; }
  .sidebar {
    position: sticky;
    top: var(--topbar-h);
    z-index: 30;
    height: auto;
    max-height: none;
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 7px max(12px, env(safe-area-inset-right)) 7px max(12px, env(safe-area-inset-left));
    border-right: 0;
    border-bottom: 1px solid var(--line);
    background: rgba(18, 18, 18, 0.94);
    backdrop-filter: blur(10px);
    overflow-x: auto;
    overflow-y: hidden;
    overscroll-behavior-x: contain;
    scroll-snap-type: x proximity;
    scrollbar-width: none;
  }
  .sidebar::-webkit-scrollbar { display: none; }
  .nav-group { flex: 0 0 auto; display: flex; align-items: center; gap: 4px; margin: 0; }
  .nav-group-title { flex: 0 0 auto; padding: 0 5px; font-size: 9px; color: #7a7a7a; }
  .nav-group-title span:not(.num) { display: none; }
  .nav-item {
    flex: 0 0 auto;
    white-space: nowrap;
    min-height: 44px;
    padding: 9px 11px;
    border-left: 0;
    border-bottom: 2px solid transparent;
    scroll-snap-align: start;
  }
  /* 16px controls stop iOS Safari zooming the viewport on focus */
  input[type="number"], input[type="text"], select { font-size: 16px; min-height: 44px; }
  .nav-item.active {
    border-left-color: transparent;
    border-bottom-color: transparent;
    background: transparent;
  }
  .nav-glider { border-left: 0; border-bottom: 2px solid transparent; background: rgba(37, 99, 235, 0.16); }
  .layout-2, .layout-2.wide-left, .layout-split { grid-template-columns: 1fr; }
  .content { padding: 18px clamp(14px, 3vw, 22px) calc(60px + env(safe-area-inset-bottom)); }
  .tool-head p { max-width: none; }
}

/* Small tablet */
@media (max-width: 900px) {
  .card-grid { grid-template-columns: repeat(auto-fill, minmax(214px, 1fr)); }
  .stat-grid { grid-template-columns: repeat(auto-fit, minmax(92px, 1fr)); }
}

/* Phones */
@media (max-width: 680px) {
  .topbar-main {
    flex-wrap: wrap;
    gap: 8px 10px;
    padding: 7px max(12px, env(safe-area-inset-right)) 7px max(12px, env(safe-area-inset-left));
  }
  .top-disclaimer-ribbon {
    font-size: 10px;
    padding: 3px 8px;
    gap: 5px;
    flex-wrap: wrap;
  }
  .ribbon-badge { font-size: 9.5px; }
  .ribbon-text { font-size: 9.5px; }
  .ribbon-link { font-size: 9px; }
  .brand { flex: 1 1 auto; min-width: 0; }
  .brand > div { min-width: 0; }
  .brand-title { font-size: 13.5px; overflow: hidden; text-overflow: ellipsis; }
  .brand-sub { display: none; }
  .brand-mark { width: 34px; height: 34px; font-size: 16px; }
  .edu-tag-top { font-size: 10px; padding: 3px 8px; gap: 5px; margin-left: auto; }
  .search-wrap { order: 3; flex: 1 0 100%; max-width: none; margin-left: 0; }
  .search-wrap input { padding: 11px 12px 11px 33px; font-size: 16px; }
  .sidebar { position: relative; top: auto; height: auto; }   /* rail scrolls away; keeps the glider containing block */
  .content { padding: 14px 12px calc(46px + env(safe-area-inset-bottom)); }
  .hero { padding: 17px 16px; margin-bottom: 20px; }
  .hero::after { display: none; }
  .hero h1 { font-size: clamp(19px, 5.8vw, 23px); }
  .hero p { font-size: 12.5px; }
  .hero-stats { gap: 18px; margin-top: 16px; }
  .hero-stat b { font-size: 18px; }
  .cat-section { margin-bottom: 24px; }
  .panel { padding: 13px; }
  .panel-head { margin-bottom: 10px; }
  .row-3 { grid-template-columns: 1fr 1fr; }
  .btn { min-height: 44px; }
  .btn.sm { min-height: 36px; }
  .segmented button { min-height: 40px; }
  .nav-item { min-height: 40px; }
  input[type="number"], input[type="text"], select { font-size: 16px; min-height: 44px; }
  .check { min-height: 44px; }
  canvas.chart { height: clamp(200px, 54vw, 260px); }
  .chart-tall { height: clamp(240px, 66vw, 320px); }
  .chart-short { height: clamp(160px, 44vw, 190px); }
  .stat .v { font-size: 14px; }
  table.grid { font-size: 11px; }
  .tool-head h1 { font-size: 20px; }
  .tool-head { margin-bottom: 14px; }
  .foot { margin-top: 28px; }
}

/* Narrow phones */
@media (max-width: 480px) {
  .brand-title { font-size: 13px; }
  .edu-tag-top { font-size: 9px; padding: 2.5px 7px; gap: 4px; }
  .edu-sub-text { font-size: 8.5px; opacity: 0.85; }
  .hero { padding: 15px; }
  .hero h1 { font-size: 19px; }
  .hero-stats { gap: 14px; }
  .card-grid { grid-template-columns: 1fr; }
  .segmented button { min-width: 0; padding: 6px 5px; }
  .chip { font-size: 10px; }
  .tool-head h1 { font-size: 18.5px; }
}

@media (max-width: 380px) {
  .row { grid-template-columns: 1fr; }
  .hero { padding: 13px; }
  .hero h1 { font-size: 18px; }
  .hero p { font-size: 12px; }
  .content { padding-left: 10px; padding-right: 10px; }
  .panel { padding: 12px 11px; }
}

/* Landscape phones / short viewports */
@media (orientation: landscape) and (max-height: 560px) {
  .topbar { padding-top: calc(6px + env(safe-area-inset-top)); padding-bottom: 6px; flex-wrap: nowrap; }
  .search-wrap { order: 0; flex: 1 1 auto; min-width: 0; max-width: 520px; }
  .search-wrap input { min-height: 38px; padding-top: 8px; padding-bottom: 8px; }
  .brand-title { font-size: 13px; }
  .edu-sub-text { display: none; }
  .brand-mark { width: 32px; height: 32px; font-size: 15px; }
  .sidebar { position: static; top: 0; }
  .content { padding-top: 10px; }
  .hero { padding: 13px 15px; margin-bottom: 14px; }
  .hero h1 { font-size: 18px; }
  .hero p { font-size: 11.5px; }
  .hero-stats { margin-top: 10px; gap: 16px; }
  .tool-head { margin-bottom: 12px; }
  canvas.chart { height: 180px; }
  .chart-tall { height: 220px; }
  .chart-short { height: 150px; }
}

/* Touch input — larger targets, no sticky hover transforms */
@media (pointer: coarse) {
  .nav-item, .btn, .btn-link, .segmented button, .check { min-height: 44px; }
  .chip { min-height: 32px; }
}
@media (hover: none) {
  .tool-card:hover { transform: none; box-shadow: none; }
}

/* Accessibility preferences */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
}
@media (prefers-contrast: more) {
  :root { --line: #4d4d4d; --line-soft: #3d3d3d; --muted: #b8b8b8; }
  .panel, .tool-card, .stat, .verdict, .check, .btn { border-color: #5a5a5a; }
}
@media (forced-colors: active) {
  .panel, .tool-card, .stat, .verdict, .check, .btn, .segmented, .table-wrap { border: 1px solid CanvasText; }
  .nav-item.active { outline: 2px solid Highlight; outline-offset: -2px; }
  .chip { border-color: CanvasText; }
}

/* Installed / notch devices */
@media (display-mode: standalone) {
  .topbar { padding-top: calc(8px + env(safe-area-inset-top)); }
}

/* Print */
@media print {
  @page { margin: 12mm; }
  html, body { background: #fff !important; color: #111 !important; }
  .topbar, .sidebar, .search-wrap, .foot, .btn, .btn-link, .segmented, .tool-tabs { display: none !important; }
  .shell { display: block; max-width: none; }
  .content { padding: 0; }
  .hero, .panel, .tool-card, .stat, .verdict, .step-item {
    background: #fff !important;
    border: 1px solid #c4c4c4 !important;
    color: #111 !important;
    break-inside: avoid;
  }
  .hero h1 span, .brand-title { background: none !important; -webkit-text-fill-color: #111; color: #111 !important; }
  .hero p, .tool-card p, .panel-head h2, .crumbs, .note, table.grid td, .stat .k, .muted { color: #333 !important; }
  table.grid th, table.grid td { border-color: #d4d4d4 !important; }
  table.grid { min-width: 0 !important; }
  canvas.chart { filter: invert(1) grayscale(1); max-width: 100%; print-color-adjust: exact; -webkit-print-color-adjust: exact; }
  a { color: #111 !important; text-decoration: underline; }
  .panel, .tool-card { page-break-inside: avoid; }
}