/* ============================================================
   GMP Audit-Readiness Gap Analysis — styles
   Nexus-derived palette (Hydra Teal) aligned to BatchBuddy brand
   ============================================================ */

/* Light mode — clean slate/indigo, matches BatchBuddy brand in bright context */
:root,
[data-theme='light'] {
  --color-bg: #f8fafc;
  --color-surface: #ffffff;
  --color-surface-2: #f1f5f9;
  --color-surface-offset: #e8eef5;
  --color-divider: #e2e8f0;
  --color-border: #cbd5e1;
  --color-border-strong: #94a3b8;

  --color-text: #0f172a;
  --color-text-muted: #475569;
  --color-text-faint: #94a3b8;

  --color-primary: #4f46e5;
  --color-primary-hover: #4338ca;
  --color-primary-highlight: rgba(99, 102, 241, 0.10);

  --color-success: #16a34a;
  --color-warning: #d97706;
  --color-danger: #dc2626;
  --color-critical: #be123c;

  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow-md: 0 4px 14px rgba(15, 23, 42, 0.08);
  --shadow-lg: 0 16px 40px rgba(15, 23, 42, 0.12);
}

/* Dark mode — exact marketing page palette: slate-900 bg, indigo primary */
[data-theme='dark'] {
  --color-bg: #0f172a;
  --color-surface: #1e293b;
  --color-surface-2: #172033;
  --color-surface-offset: #1e2d45;
  --color-divider: rgba(255, 255, 255, 0.06);
  --color-border: rgba(255, 255, 255, 0.09);
  --color-border-strong: rgba(255, 255, 255, 0.18);

  --color-text: #e2e8f0;
  --color-text-muted: #94a3b8;
  --color-text-faint: rgba(255, 255, 255, 0.32);

  --color-primary: #6366f1;
  --color-primary-hover: #818cf8;
  --color-primary-highlight: rgba(99, 102, 241, 0.15);

  --color-success: #4ade80;
  --color-warning: #fb923c;
  --color-danger: #f87171;
  --color-critical: #f43f5e;

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.45);
  --shadow-lg: 0 16px 40px rgba(0, 0, 0, 0.65);
}

:root {
  --text-xs: clamp(0.75rem, 0.7rem + 0.2vw, 0.8125rem);
  --text-sm: clamp(0.8125rem, 0.77rem + 0.25vw, 0.9375rem);
  --text-base: clamp(1rem, 0.96rem + 0.2vw, 1.0625rem);
  --text-lg: clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --text-xl: clamp(1.5rem, 1.2rem + 1.1vw, 2rem);

  --space-1: 0.25rem; --space-2: 0.5rem; --space-3: 0.75rem;
  --space-4: 1rem; --space-5: 1.25rem; --space-6: 1.5rem;
  --space-8: 2rem; --space-10: 2.5rem; --space-12: 3rem;
  --space-16: 4rem;

  --radius-sm: 0.375rem; --radius-md: 0.5rem;
  --radius-lg: 0.75rem; --radius-xl: 1rem;
  --radius-full: 9999px;

  --font-display: 'Space Grotesk', 'Trebuchet MS', sans-serif;
  --font-body: 'DM Sans', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', ui-monospace, monospace;

  --content-default: 1120px;
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

body {
  min-height: 100dvh;
  font-family: var(--font-body);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  background-image:
    radial-gradient(ellipse at 20% 20%, rgba(99, 102, 241, 0.15) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 80%, rgba(20, 184, 166, 0.10) 0%, transparent 50%);
  background-attachment: fixed;
}

.wrap { width: min(100% - 2.5rem, var(--content-default)); margin-inline: auto; }

.skip-link {
  position: absolute; left: -9999px; top: 0; z-index: 100;
  background: var(--color-primary); color: #fff; padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
}
.skip-link:focus { left: var(--space-2); top: var(--space-2); }

a { color: var(--color-primary); text-decoration: none; transition: color .18s ease; }
a:hover { color: var(--color-primary-hover); }

::selection { background: color-mix(in oklab, var(--color-primary) 28%, transparent); }

:focus-visible { outline: 2px solid var(--color-primary); outline-offset: 3px; border-radius: var(--radius-sm); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in oklab, var(--color-bg) 88%, transparent);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--color-border);
}
.header-inner {
  display: flex; align-items: center; justify-content: space-between;
  padding-block: var(--space-3) var(--space-4);
}
.brand { display: inline-flex; align-items: center; gap: var(--space-2); color: var(--color-text); }
.brand-logo { height: 36px; width: auto; display: block; }
.brand-sub-tag { font-size: var(--text-xs); color: var(--color-primary); letter-spacing: 0.06em; font-weight: 700; text-transform: uppercase; padding: 2px 6px; border: 1px solid color-mix(in oklab, var(--color-primary) 40%, transparent); border-radius: var(--radius-sm); }
.header-right { display: flex; align-items: center; gap: var(--space-4); }
.tool-tag {
  font-size: var(--text-xs); font-weight: 600; color: var(--color-text-muted);
  padding: var(--space-1) var(--space-3); border: 1px solid var(--color-border);
  border-radius: var(--radius-full); background: var(--color-surface);
}
@media (max-width: 560px) { .tool-tag { display: none; } }

.theme-toggle {
  display: inline-grid; place-items: center;
  width: 38px; height: 38px; border-radius: var(--radius-md);
  border: 1px solid var(--color-border); background: var(--color-surface);
  color: var(--color-text-muted); cursor: pointer;
}
.theme-toggle:hover { color: var(--color-primary); border-color: var(--color-primary); }

/* ---------- Intro ---------- */
.intro { padding-block: var(--space-10) var(--space-6); max-width: 64ch; }
.eyebrow {
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.12em;
  text-transform: uppercase; color: var(--color-success); margin-bottom: var(--space-3);
}
.intro h1 {
  font-family: var(--font-display); font-weight: 700;
  font-size: var(--text-xl); line-height: 1.12; letter-spacing: -0.01em;
  margin-bottom: var(--space-4);
}
.lede { color: var(--color-text-muted); font-size: var(--text-base); }
.lede strong { color: var(--color-text); font-weight: 600; }

/* ---------- Layout ---------- */
.tool-grid {
  display: grid; grid-template-columns: 1fr 1fr;
  gap: var(--space-6); align-items: start;
}
@media (max-width: 880px) { .tool-grid { grid-template-columns: 1fr; } }

.panel {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-sm);
}
.results { position: sticky; top: 84px; }
@media (max-width: 880px) { .results { position: static; } }

.step-title {
  display: flex; align-items: center; gap: var(--space-3);
  font-family: var(--font-display); font-weight: 700;
  font-size: var(--text-lg); margin-bottom: var(--space-2);
}
.step-num {
  display: inline-grid; place-items: center; flex: none;
  width: 26px; height: 26px; border-radius: var(--radius-full);
  background: var(--color-primary); color: #fff;
  font-family: var(--font-mono); font-size: 0.8rem; font-weight: 700;
}
.inputs .step-title:not(:first-child) { margin-top: var(--space-8); }
.step-help { font-size: var(--text-sm); color: var(--color-text-muted); margin-bottom: var(--space-4); max-width: 60ch; }

/* ---------- Chips ---------- */
.chips { display: flex; flex-wrap: wrap; gap: var(--space-2); }
.chip {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  border: 1px solid var(--color-border-strong);
  border-radius: var(--radius-full);
  background: var(--color-surface-2);
  color: var(--color-text); font-size: var(--text-sm); font-weight: 500;
  cursor: pointer; user-select: none; transition: all .16s ease;
}
.chip:hover { border-color: var(--color-primary); color: var(--color-primary); }
.chip[aria-pressed='true'] {
  background: var(--color-primary); border-color: var(--color-primary);
  color: #fff;
}
.chip .dot { width: 8px; height: 8px; border-radius: 50%; background: currentColor; opacity: .6; flex: none; }
.chips-sm .chip { padding: var(--space-1) var(--space-3); font-size: var(--text-xs); }

/* ---------- Pillars ---------- */
.pillars { display: flex; flex-direction: column; gap: var(--space-5); }
.pillar { border: 1px solid var(--color-border); border-radius: var(--radius-lg); padding: var(--space-4); background: var(--color-surface-2); }
.pillar-head { display: flex; align-items: baseline; justify-content: space-between; gap: var(--space-3); margin-bottom: var(--space-3); }
.pillar-name { font-weight: 600; font-size: var(--text-base); }
.pillar-pts { font-family: var(--font-mono); font-size: var(--text-xs); color: var(--color-text-faint); white-space: nowrap; }
.pillar-levels { display: grid; gap: var(--space-1); }
.level {
  display: grid; grid-template-columns: auto 1fr; gap: var(--space-3);
  align-items: start; padding: var(--space-2) var(--space-3);
  border: 1px solid transparent; border-radius: var(--radius-md);
  cursor: pointer; transition: all .14s ease;
}
.level:hover { background: var(--color-surface-offset); }
.level[aria-checked='true'] {
  background: var(--color-primary-highlight);
  border-color: color-mix(in oklab, var(--color-primary) 40%, transparent);
}
.level-radio {
  margin-top: 3px; width: 16px; height: 16px; border-radius: 50%;
  border: 2px solid var(--color-border-strong); flex: none;
  position: relative; transition: all .14s ease;
}
.level[aria-checked='true'] .level-radio { border-color: var(--color-primary); }
.level[aria-checked='true'] .level-radio::after {
  content: ''; position: absolute; inset: 3px; border-radius: 50%;
  background: var(--color-primary);
}
.level-body { min-width: 0; }
.level-label { font-size: var(--text-sm); font-weight: 600; color: var(--color-text); display: flex; align-items: center; gap: var(--space-2); }
.level-tag { font-family: var(--font-mono); font-size: 0.7rem; color: var(--color-text-faint); }
.level-desc { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: 2px; }

/* ---------- Score card ---------- */
.score-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: var(--space-5);
  background: linear-gradient(in oklab, var(--color-surface-2), var(--color-surface));
  margin-bottom: var(--space-5);
}
.score-head { display: flex; align-items: center; justify-content: space-between; gap: var(--space-4); }
.score-label { font-size: var(--text-xs); text-transform: uppercase; letter-spacing: 0.05em; color: var(--color-text-muted); font-weight: 600; }
.score-band { font-family: var(--font-display); font-weight: 700; font-size: var(--text-lg); margin-top: var(--space-1); }
.score-cap { font-size: var(--text-xs); color: var(--color-danger); font-weight: 600; margin-top: var(--space-1); line-height: 1.4; }

.score-gauge { flex: none; }
.gauge-bg { fill: none; stroke: var(--color-surface-offset); stroke-width: 10; }
.gauge-fg {
  fill: none; stroke: var(--color-primary); stroke-width: 10; stroke-linecap: round;
  stroke-dasharray: 326.7; stroke-dashoffset: 326.7;
  transform: rotate(-90deg); transform-origin: center;
  transition: stroke-dashoffset .6s cubic-bezier(0.16,1,0.3,1), stroke .3s ease;
}
.gauge-val { font-family: var(--font-mono); font-size: 26px; font-weight: 700; fill: var(--color-text); text-anchor: middle; }
.gauge-max { font-family: var(--font-mono); font-size: 10px; fill: var(--color-text-faint); text-anchor: middle; }

.elsa-strip {
  margin-top: var(--space-4); padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-md); border: 1px solid var(--color-border);
  background: var(--color-surface);
  display: flex; flex-direction: column; gap: 4px;
}
.elsa-tag { font-size: var(--text-sm); font-weight: 600; }
.elsa-note { font-size: var(--text-xs); color: var(--color-text-muted); line-height: 1.5; }

/* ELSA exposure color states */
.elsa-strip[data-exp='low'] { border-color: color-mix(in oklab, var(--color-success) 45%, var(--color-border)); }
.elsa-strip[data-exp='low'] .elsa-tag { color: var(--color-success); }
.elsa-strip[data-exp='mod'] { border-color: color-mix(in oklab, var(--color-warning) 50%, var(--color-border)); }
.elsa-strip[data-exp='mod'] .elsa-tag { color: var(--color-warning); }
.elsa-strip[data-exp='elev'] { border-color: color-mix(in oklab, var(--color-danger) 50%, var(--color-border)); }
.elsa-strip[data-exp='elev'] .elsa-tag { color: var(--color-danger); }
.elsa-strip[data-exp='sev'] { border-color: color-mix(in oklab, var(--color-critical) 55%, var(--color-border)); background: color-mix(in oklab, var(--color-critical) 8%, var(--color-surface)); }
.elsa-strip[data-exp='sev'] .elsa-tag { color: var(--color-critical); }

/* ---------- Pillar bars ---------- */
.pillar-bars { display: flex; flex-direction: column; gap: var(--space-3); margin-bottom: var(--space-6); }
.pbar { display: grid; grid-template-columns: 1fr auto; gap: var(--space-2) var(--space-3); align-items: center; }
.pbar-name { font-size: var(--text-sm); font-weight: 600; }
.pbar-track { grid-column: 1 / -1; height: 8px; border-radius: var(--radius-full); background: var(--color-surface-offset); overflow: hidden; }
.pbar-fill { height: 100%; border-radius: var(--radius-full); background: var(--color-primary); width: 0; transition: width .5s cubic-bezier(0.16,1,0.3,1), background .3s ease; }
.pbar-score { font-family: var(--font-mono); font-size: var(--text-sm); font-weight: 700; }

/* ---------- Results blocks ---------- */
.results-block { border-top: 1px solid var(--color-divider); padding-top: var(--space-5); margin-top: var(--space-5); }
.block-title { font-family: var(--font-display); font-weight: 700; font-size: var(--text-base); margin-bottom: var(--space-3); }
.gap-list { list-style: none; display: flex; flex-direction: column; gap: var(--space-3); }
.gap-item {
  display: grid; grid-template-columns: auto 1fr; gap: var(--space-3);
  padding: var(--space-3); border-radius: var(--radius-md);
  background: var(--color-surface-2); border: 1px solid var(--color-border);
  border-left: 3px solid var(--color-border-strong);
}
.gap-item[data-sev='critical'] { border-left-color: var(--color-critical); }
.gap-item[data-sev='major'] { border-left-color: var(--color-danger); }
.gap-item[data-sev='moderate'] { border-left-color: var(--color-warning); }
.gap-sev {
  font-family: var(--font-mono); font-size: 0.62rem; font-weight: 700;
  text-transform: uppercase; letter-spacing: 0.05em;
  padding: 3px 6px; border-radius: var(--radius-sm); height: fit-content;
  white-space: nowrap;
}
.gap-item[data-sev='critical'] .gap-sev { background: color-mix(in oklab, var(--color-critical) 16%, transparent); color: var(--color-critical); }
.gap-item[data-sev='major'] .gap-sev { background: color-mix(in oklab, var(--color-danger) 16%, transparent); color: var(--color-danger); }
.gap-item[data-sev='moderate'] .gap-sev { background: color-mix(in oklab, var(--color-warning) 18%, transparent); color: var(--color-warning); }
.gap-body { min-width: 0; }
.gap-title { font-size: var(--text-sm); font-weight: 600; margin-bottom: 2px; }
.gap-desc { font-size: var(--text-xs); color: var(--color-text-muted); line-height: 1.5; }
.gap-ref { display: inline-block; margin-top: 4px; font-family: var(--font-mono); font-size: 0.65rem; color: var(--color-text-faint); }

.remediation-list { list-style: none; counter-reset: rem; display: flex; flex-direction: column; gap: var(--space-3); }
.remediation-list li {
  counter-increment: rem; position: relative;
  padding: var(--space-3) var(--space-3) var(--space-3) var(--space-8);
  border-radius: var(--radius-md); background: var(--color-surface-2);
  border: 1px solid var(--color-border);
}
.remediation-list li::before {
  content: counter(rem); position: absolute; left: var(--space-3); top: var(--space-3);
  width: 22px; height: 22px; display: grid; place-items: center;
  font-family: var(--font-mono); font-size: 0.72rem; font-weight: 700;
  border-radius: 50%; background: var(--color-primary); color: #fff;
}
.rem-pillar { font-size: var(--text-xs); color: var(--color-primary); font-weight: 600; text-transform: uppercase; letter-spacing: 0.04em; }
.rem-text { font-size: var(--text-sm); margin-top: 2px; }

.empty-state { font-size: var(--text-sm); color: var(--color-text-muted); padding: var(--space-4); text-align: center; border: 1px dashed var(--color-border); border-radius: var(--radius-md); }

/* ---------- Lead gate ---------- */
.lead-gate {
  position: relative;
  margin-bottom: var(--space-5);
  border: 1px solid color-mix(in oklab, var(--color-primary) 35%, var(--color-border));
  border-radius: var(--radius-lg);
  background: linear-gradient(135deg,
    color-mix(in oklab, var(--color-primary) 8%, var(--color-surface)),
    var(--color-surface));
  overflow: hidden;
}
.lead-gate::before {
  content: '';
  position: absolute;
  inset: 0 0 auto 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), var(--color-success));
}
.gate-inner {
  padding: var(--space-7) var(--space-6);
}
.gate-eyebrow {
  font-size: var(--text-xs); font-weight: 600; letter-spacing: 0.1em;
  text-transform: uppercase; color: var(--color-success);
  margin-bottom: var(--space-2);
}
.gate-headline {
  font-family: var(--font-display); font-weight: 700;
  font-size: var(--text-lg); line-height: 1.2;
  margin-bottom: var(--space-2);
}
.gate-sub {
  font-size: var(--text-sm); color: var(--color-text-muted);
  max-width: 46ch; margin-bottom: var(--space-5);
}
.gate-form { display: flex; flex-direction: column; gap: var(--space-3); }
.gate-row { display: grid; grid-template-columns: 1fr 1fr; gap: var(--space-3); }
.gate-input {
  width: 100%; padding: var(--space-3) var(--space-4);
  background: var(--color-surface-2);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  color: var(--color-text); font-size: var(--text-sm);
  font-family: var(--font-body);
  transition: border-color .15s ease, box-shadow .15s ease;
  box-sizing: border-box;
}
.gate-input:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px color-mix(in oklab, var(--color-primary) 18%, transparent);
}
.gate-input::placeholder { color: var(--color-text-faint); }
.gate-error {
  font-size: var(--text-xs); color: var(--color-danger);
  padding: var(--space-2) var(--space-3);
  background: color-mix(in oklab, var(--color-danger) 10%, var(--color-surface));
  border-radius: var(--radius-sm);
  border-left: 2px solid var(--color-danger);
}
.gate-submit {
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary); color: #fff;
  border: none; border-radius: var(--radius-full);
  font-size: var(--text-sm); font-weight: 600;
  font-family: var(--font-body);
  cursor: pointer; align-self: flex-start;
  transition: background .18s ease, transform .12s ease;
}
.gate-submit:hover:not(:disabled) { background: var(--color-primary-hover); transform: translateY(-1px); }
.gate-submit:disabled { opacity: 0.6; cursor: not-allowed; }
.gate-privacy { font-size: var(--text-xs); color: var(--color-text-faint); margin-top: var(--space-1); }

/* results-body locked state — blur the content beneath the gate */
.results-body {
  position: relative;
  transition: filter .3s ease;
}
.results-body.results-locked {
  filter: blur(6px);
  pointer-events: none;
  user-select: none;
}

@media (max-width: 480px) {
  .gate-row { grid-template-columns: 1fr; }
  .gate-submit { align-self: stretch; text-align: center; }
}

/* ---------- CTA block ---------- */
.cta-block {
  margin-block: var(--space-10);
  padding: var(--space-10) var(--space-8);
  border: 1px solid color-mix(in oklab, var(--color-primary) 30%, var(--color-border));
  border-radius: var(--radius-xl);
  background: linear-gradient(135deg, color-mix(in oklab, var(--color-primary) 6%, var(--color-surface)), var(--color-surface));
  text-align: center;
}
.cta-block h2 {
  font-family: var(--font-display); font-weight: 700;
  font-size: var(--text-xl); margin-bottom: var(--space-3);
}
.cta-block p {
  color: var(--color-text-muted); max-width: 52ch; margin-inline: auto;
  margin-bottom: var(--space-6);
}
.cta-actions { display: flex; gap: var(--space-3); justify-content: center; flex-wrap: wrap; }
.btn-primary {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary); color: #fff;
  border-radius: var(--radius-full); font-weight: 600;
  font-size: var(--text-sm); text-decoration: none;
  transition: background .18s ease, transform .12s ease;
  border: none; cursor: pointer;
}
.btn-primary:hover { background: var(--color-primary-hover); color: #fff; transform: translateY(-1px); }
.btn-outline {
  display: inline-flex; align-items: center; gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border: 1.5px solid var(--color-primary); color: var(--color-primary);
  border-radius: var(--radius-full); font-weight: 600;
  font-size: var(--text-sm); text-decoration: none;
  transition: all .18s ease; background: transparent;
}
.btn-outline:hover { background: var(--color-primary-highlight); color: var(--color-primary-hover); }

/* ---------- Footer ---------- */
.tool-footer { margin-block: var(--space-6) var(--space-12); padding-top: var(--space-5); border-top: 1px solid var(--color-border); }
.tool-footer p { font-size: var(--text-sm); color: var(--color-text-muted); max-width: 72ch; }
.tool-footer .disclaimer { margin-top: var(--space-3); font-size: var(--text-xs); color: var(--color-text-faint); }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after { animation-duration: .01ms !important; transition-duration: .01ms !important; scroll-behavior: auto !important; }
}