:root {
  color-scheme: light;
  --forest-950: #09231e;
  --forest-900: #102d27;
  --forest-800: #173d34;
  --forest-700: #27584c;
  --forest-100: #dbe9e4;
  --paper: #f4f1e8;
  --paper-deep: #e8e3d7;
  --white: #fffdf8;
  --coral: #ed6a3b;
  --coral-soft: #fde4d9;
  --gold: #d4a642;
  --red: #b53c3c;
  --red-soft: #f9dddd;
  --blue: #397397;
  --blue-soft: #deedf5;
  --ink: var(--forest-950);
  --ink-muted: #61716b;
  --line: #cdc8bc;
  --surface: #fffdf8;
  --surface-muted: #f7f5ee;
  --surface-subtle: #faf9f4;
  --nav-bg: rgba(244, 241, 232, .91);
  --soft-border: rgba(16, 45, 39, .12);
  --shadow: 0 20px 60px rgba(9, 35, 30, .10);
  --radius: 16px;
  --font-sans: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --font-serif: Georgia, "Times New Roman", serif;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background: var(--paper);
  color: var(--ink);
  font-family: var(--font-sans);
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}
button, input, textarea, select { font: inherit; }
button, a { -webkit-tap-highlight-color: transparent; }
a { color: inherit; }
img { max-width: 100%; display: block; }
main:focus { outline: none; }

.skip-link {
  position: fixed;
  left: 16px;
  top: -60px;
  z-index: 100;
  padding: 10px 14px;
  background: var(--white);
  border: 2px solid var(--forest-900);
}
.skip-link:focus { top: 16px; }

.loading-shell {
  min-height: 100vh;
  display: grid;
  place-content: center;
  justify-items: center;
  color: var(--ink-muted);
}
.loader {
  width: 30px;
  height: 30px;
  border: 3px solid var(--forest-100);
  border-top-color: var(--coral);
  border-radius: 50%;
  animation: spin .75s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.site-nav {
  position: sticky;
  top: 0;
  z-index: 30;
  min-height: 68px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 0 max(24px, calc((100vw - 1180px) / 2));
  background: var(--nav-bg);
  backdrop-filter: blur(18px);
  border-bottom: 1px solid var(--soft-border);
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 11px;
  text-decoration: none;
  font-weight: 850;
  letter-spacing: -.025em;
}
.brand-mark {
  width: 34px;
  aspect-ratio: 1;
  display: grid;
  place-items: center;
  color: var(--white);
  background: var(--forest-900);
  border-radius: 50% 50% 50% 12%;
  font-family: var(--font-serif);
  font-size: 1.25rem;
}
.nav-links { display: flex; align-items: center; gap: 8px; }
.nav-link {
  border: 0;
  padding: 9px 12px;
  background: transparent;
  color: var(--forest-800);
  text-decoration: none;
  cursor: pointer;
  border-radius: 9px;
}
.nav-link:hover, .nav-link:focus-visible { background: var(--forest-100); }
.nav-link.active { color: var(--ink); background: var(--forest-100); font-weight: 800; }
.avatar {
  width: 34px;
  height: 34px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: var(--coral-soft);
  color: #923b1c;
  font-weight: 800;
}
.nav-menu { position: relative; }
.nav-menu > summary {
  min-height: 44px;
  display: flex;
  align-items: center;
  gap: 9px;
  padding: 5px 8px;
  border-radius: 11px;
  cursor: pointer;
  list-style: none;
}
.nav-menu > summary::-webkit-details-marker { display: none; }
.nav-menu > summary:hover, .nav-menu > summary:focus-visible, .nav-menu[open] > summary { background: var(--forest-100); }
.nav-menu.active > summary { background: var(--forest-100); }
.nav-menu > summary:focus-visible { outline: 3px solid rgba(57, 115, 151, .35); outline-offset: 2px; }
.nav-chevron { color: var(--ink-muted); transition: transform .18s ease; }
.nav-menu[open] .nav-chevron { transform: rotate(180deg); }
.nav-menu-panel {
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  z-index: 50;
  width: 230px;
  display: grid;
  gap: 3px;
  padding: 9px;
  border: 1px solid rgba(16, 45, 39, .15);
  border-radius: 13px;
  background: var(--white);
  box-shadow: 0 18px 45px rgba(9, 35, 30, .18);
}
.nav-menu:not([open]) > .nav-menu-panel { display: none; }
.nav-menu-panel .nav-link { width: 100%; text-align: left; }
.nav-menu-label { padding: 5px 12px 3px; color: var(--ink-muted); font-size: .66rem; font-weight: 850; letter-spacing: .1em; text-transform: uppercase; }
.nav-logout { margin-top: 4px; border-top: 1px solid var(--line); border-radius: 0 0 8px 8px; color: #873232; }
.theme-toggle {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 50%;
  background: var(--surface);
  color: var(--ink);
  cursor: pointer;
}
.theme-toggle:hover, .theme-toggle:focus-visible { border-color: var(--coral); background: var(--forest-100); }
.theme-toggle:focus-visible { outline: 3px solid rgba(57, 115, 151, .35); outline-offset: 2px; }
.theme-icon { font-size: 1.05rem; line-height: 1; }
.theme-icon-dark { display: none; }
:root[data-theme="dark"] .theme-icon-light { display: none; }
:root[data-theme="dark"] .theme-icon-dark { display: inline; }
.only-mobile { display: none; }

.shell { width: min(1180px, calc(100% - 40px)); margin: 0 auto; }
.page { padding: 54px 0 90px; }
.page-narrow { width: min(700px, 100%); margin: 0 auto; }
.page-head {
  display: flex;
  justify-content: space-between;
  gap: 30px;
  align-items: end;
  margin-bottom: 32px;
}
.eyebrow {
  display: inline-block;
  color: var(--coral);
  font-weight: 850;
  font-size: .72rem;
  letter-spacing: .17em;
  text-transform: uppercase;
}
h1, h2, h3, p { margin-top: 0; }
h1, h2 { font-family: var(--font-serif); font-weight: 500; letter-spacing: -.035em; }
h1 { margin: 12px 0 14px; font-size: clamp(2.4rem, 4.7vw, 4.35rem); line-height: 1; }
h2 { font-size: clamp(1.65rem, 3vw, 2.6rem); line-height: 1.08; }
h3 { font-size: 1rem; }
.lede { max-width: 680px; color: var(--ink-muted); font-size: 1.08rem; }
.muted { color: var(--ink-muted); }
.tiny { color: var(--ink-muted); font-size: .78rem; }

.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100vh - 68px);
  display: grid;
  align-items: center;
  background:
    radial-gradient(circle at 82% 15%, rgba(237, 106, 59, .18), transparent 28rem),
    linear-gradient(115deg, var(--paper) 0 58%, var(--paper-deep) 58%);
}
.hero::after {
  content: "";
  position: absolute;
  width: 420px;
  height: 420px;
  right: -130px;
  bottom: -170px;
  border: 1px solid rgba(16, 45, 39, .15);
  border-radius: 50%;
  box-shadow: 0 0 0 58px rgba(16, 45, 39, .035), 0 0 0 118px rgba(16, 45, 39, .025);
}
.hero-grid {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: 1.1fr .9fr;
  align-items: center;
  gap: clamp(40px, 8vw, 110px);
  padding: 80px 0;
}
.hero-grid > * { min-width: 0; }
.hero h1 { font-size: clamp(4rem, 8.4vw, 8rem); }
.hero h1 em { color: var(--coral); font-weight: inherit; }
.hero-actions { display: flex; gap: 12px; flex-wrap: wrap; margin-top: 28px; }
.trust-line { display: flex; flex-wrap: wrap; gap: 18px; margin-top: 28px; font-size: .82rem; color: var(--ink-muted); }
.trust-line span::before { content: "✓"; color: var(--forest-700); margin-right: 6px; font-weight: 900; }
.hero-card {
  transform: rotate(1.2deg);
  padding: 28px;
  background: var(--surface);
  border: 1px solid rgba(16, 45, 39, .14);
  box-shadow: 24px 26px 0 rgba(16, 45, 39, .09);
}
.mini-progress { display: grid; gap: 13px; margin-top: 25px; }
.mini-step { display: grid; grid-template-columns: 28px 1fr; align-items: center; gap: 10px; font-size: .88rem; }
.mini-step i { width: 24px; height: 24px; display: grid; place-items: center; border-radius: 50%; background: var(--forest-100); color: var(--forest-800); font-style: normal; font-size: .72rem; }
.mini-step.active i { background: var(--coral); color: white; }

.button {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 17px;
  border: 1px solid transparent;
  border-radius: 10px;
  background: var(--forest-900);
  color: var(--white);
  text-decoration: none;
  font-weight: 760;
  cursor: pointer;
  transition: transform .15s ease, background .15s ease, box-shadow .15s ease;
}
.button:hover { background: var(--forest-700); transform: translateY(-1px); }
.button:focus-visible, input:focus-visible, textarea:focus-visible, select:focus-visible, .drop-zone:focus-within {
  outline: 3px solid rgba(57, 115, 151, .35);
  outline-offset: 2px;
}
.button-secondary { background: transparent; color: var(--ink); border-color: currentColor; }
.button-secondary:hover { background: var(--forest-100); }
.button-ghost { background: transparent; color: var(--forest-800); border-color: var(--line); }
.button-danger { background: var(--red); }
.button-small { min-height: 36px; padding: 7px 11px; font-size: .82rem; }
.button:disabled { opacity: .55; cursor: wait; transform: none; }
.button[aria-busy="true"] { gap: 10px; }
.button[aria-busy="true"]::before {
  content: "";
  width: 14px;
  height: 14px;
  border: 2px solid rgba(255,255,255,.42);
  border-top-color: currentColor;
  border-radius: 50%;
  animation: spin .7s linear infinite;
}

.card {
  padding: 25px;
  background: var(--surface);
  border: 1px solid var(--soft-border);
  border-radius: var(--radius);
  box-shadow: 0 8px 30px rgba(16, 45, 39, .055);
}
.card-head { display: flex; justify-content: space-between; align-items: start; gap: 20px; margin-bottom: 20px; }
.card-head h2, .card-head h3 { margin-bottom: 4px; }
.grid { display: grid; gap: 18px; }
.grid-2 { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.grid-3 { grid-template-columns: repeat(3, minmax(0, 1fr)); }
.dashboard-grid { grid-template-columns: minmax(0, 1fr) 300px; align-items: start; }

.stat-card strong { display: block; font: 500 2.2rem/1 var(--font-serif); margin-bottom: 8px; }
.stat-card span { color: var(--ink-muted); font-size: .84rem; }
.project-card { position: relative; text-decoration: none; transition: transform .15s ease, border-color .15s ease; }
.project-card::after { content: "→"; position: absolute; top: 22px; right: 22px; color: var(--forest-700); font-weight: 900; }
.project-card .eyebrow { padding-right: 28px; }
.project-card:hover { transform: translateY(-2px); border-color: var(--forest-700); }
.project-card h3 { margin: 9px 0; font-size: 1.15rem; }
.project-meta { display: flex; gap: 12px; color: var(--ink-muted); font-size: .8rem; }
.project-card-top { display: flex; align-items: center; justify-content: space-between; gap: 12px; }
.team-chip, .role-badge {
  display: inline-flex;
  align-items: center;
  width: fit-content;
  padding: 5px 9px;
  border-radius: 999px;
  color: var(--forest-800);
  background: var(--forest-100);
  font-size: .7rem;
  font-weight: 850;
}
.team-chip.personal { color: var(--ink-muted); background: var(--surface-muted); border: 1px solid var(--line); }
.role-owner { color: #8a4319; background: #ffe0c7; }
.role-admin { color: #65500c; background: #f5e7aa; }
.role-editor { color: #155c4c; background: #d8eee6; }
.role-viewer { color: #315d78; background: var(--blue-soft); }
.dashboard-help h3 { margin: 7px 0; font-size: 1.1rem; }
.dashboard-help p { margin-bottom: 12px; font-size: .84rem; }

.form-card { padding: 34px; }
.form-grid { display: grid; gap: 18px; }
.field { display: grid; gap: 7px; }
.field-row { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 16px; }
label, .label { font-size: .84rem; font-weight: 750; }
.required::after { content: " *"; color: var(--coral); }
input, textarea, select {
  width: 100%;
  min-height: 46px;
  padding: 11px 12px;
  border: 1px solid var(--line);
  border-radius: 9px;
  background: var(--surface);
  color: var(--ink);
}
textarea { min-height: 100px; resize: vertical; }
.checkbox { display: grid; grid-template-columns: 20px 1fr; align-items: start; gap: 10px; font-weight: 500; }
.checkbox input { min-height: 0; width: 18px; height: 18px; margin-top: 3px; }
.form-error { padding: 10px 12px; color: #7a2525; background: var(--red-soft); border-radius: 8px; font-size: .86rem; }

.auth-layout {
  min-height: calc(100vh - 68px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(420px, .75fr);
}
.auth-story { padding: 9vh max(30px, calc((100vw - 1180px) / 2)); background: var(--forest-900); color: var(--white); }
.auth-story blockquote { max-width: 600px; margin: 16vh 0 0; font: 400 clamp(2rem, 4vw, 4rem)/1.08 var(--font-serif); }
.auth-form-wrap { display: grid; place-items: center; padding: 50px; }
.auth-form { width: min(440px, 100%); }
.auth-form h1 { font-size: 3rem; }
.auth-switch { margin-top: 22px; color: var(--ink-muted); font-size: .9rem; }
.text-link { color: var(--forest-700); font-weight: 750; }
.social-login { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.social-login .divider { grid-column: 1 / -1; display: flex; align-items: center; gap: 12px; color: var(--ink-muted); font-size: .75rem; }
.social-login .divider::before, .social-login .divider::after { content: ""; flex: 1; height: 1px; background: var(--line); }
.social-button { width: 100%; }

.privacy-banner {
  display: grid;
  grid-template-columns: 30px 1fr;
  gap: 12px;
  padding: 16px;
  margin-bottom: 22px;
  background: var(--coral-soft);
  border: 1px solid #f4b99e;
  border-radius: 12px;
  color: #71331e;
  font-size: .88rem;
}
.privacy-banner strong { display: block; margin-bottom: 3px; }

.drop-zone {
  position: relative;
  display: grid;
  place-items: center;
  min-height: 220px;
  padding: 30px;
  border: 1.5px dashed #93a7a0;
  border-radius: 13px;
  text-align: center;
  background: var(--surface-subtle);
  cursor: pointer;
}
.drop-zone:hover { border-color: var(--coral); background: var(--surface); }
.drop-zone input { position: absolute; opacity: 0; pointer-events: none; }
.upload-icon { font: 500 2.2rem var(--font-serif); color: var(--coral); }

.status-pill, .confidence {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 9px;
  border-radius: 999px;
  font-size: .72rem;
  font-weight: 800;
  letter-spacing: .03em;
}
.status-pill::before, .confidence::before { content: ""; width: 7px; height: 7px; border-radius: 50%; background: currentColor; }
.status-completed, .confidence-high { color: #216b51; background: #dcefe6; }
.status-processing, .status-queued, .confidence-medium { color: #775911; background: #f5e9c9; }
.status-failed, .confidence-low { color: #8d2f2f; background: var(--red-soft); }
.status-needs_clarification { color: #315f7e; background: var(--blue-soft); }

.progress-track { height: 8px; overflow: hidden; background: var(--paper-deep); border-radius: 999px; }
.progress-bar { height: 100%; background: linear-gradient(90deg, var(--coral), #f3a253); border-radius: inherit; transition: width .4s ease; }
.pipeline { display: grid; gap: 2px; margin-top: 25px; }
.pipeline-step {
  display: grid;
  grid-template-columns: 35px 1fr auto;
  gap: 12px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid rgba(16, 45, 39, .08);
}
.pipeline-step:last-child { border: 0; }
.step-dot { width: 27px; height: 27px; display: grid; place-items: center; border: 1px solid var(--line); border-radius: 50%; color: var(--ink-muted); font-size: .72rem; }
.pipeline-step.done .step-dot { background: var(--forest-700); border-color: var(--forest-700); color: white; }
.pipeline-step.current .step-dot { background: var(--coral); border-color: var(--coral); color: white; box-shadow: 0 0 0 5px var(--coral-soft); }

.tabs { display: flex; gap: 4px; padding: 4px; margin-bottom: 22px; background: var(--paper-deep); border-radius: 11px; width: fit-content; }
.tab { padding: 8px 14px; border: 0; border-radius: 8px; background: transparent; color: var(--ink-muted); font-weight: 750; cursor: pointer; }
.tab.active { background: var(--surface); color: var(--ink); box-shadow: 0 2px 8px rgba(16, 45, 39, .08); }
.mode-tabs { position: sticky; top: 73px; z-index: 20; box-shadow: 0 8px 20px rgba(16, 45, 39, .06); }
.option-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 10px; }
.option-card { display: grid; grid-template-columns: 20px 1fr; gap: 11px; padding: 14px; border: 1px solid var(--line); border-radius: 11px; background: var(--surface-subtle); cursor: pointer; }
.option-card:has(input:checked) { border-color: var(--forest-700); background: var(--forest-100); }
.option-card input { width: 18px; min-height: 18px; margin-top: 2px; }
.option-card strong, .option-card small { display: block; }
.option-card small { margin-top: 3px; color: var(--ink-muted); font-weight: 500; }
.module-category { display: block; margin-bottom: 3px; color: var(--coral); font-size: .62rem; font-weight: 850; letter-spacing: .08em; text-transform: uppercase; }
.analysis-design { overflow: hidden; border: 1px solid rgba(39, 88, 76, .3); border-radius: 14px; background: var(--surface); box-shadow: 0 8px 28px rgba(16, 45, 39, .06); }
.analysis-design > summary { display: flex; align-items: center; justify-content: space-between; gap: 20px; padding: 20px 24px; cursor: pointer; list-style: none; }
.analysis-design > summary::-webkit-details-marker { display: none; }
.analysis-design > summary:hover { background: var(--surface-subtle); }
.design-summary-copy { display: grid; gap: 3px; }
.design-summary-copy strong { font: 500 1.45rem var(--font-serif); }
.design-summary-copy small { color: var(--ink-muted); }
.design-summary-meta { display: flex; align-items: center; gap: 12px; flex: 0 0 auto; }
.disclosure-icon { width: 30px; height: 30px; display: grid; place-items: center; border-radius: 50%; background: var(--paper-deep); color: var(--forest-900); font-size: 1.15rem; transition: transform .2s ease; }
.analysis-design[open] .disclosure-icon { transform: rotate(180deg); }
.design-content { padding: 22px 24px 24px; border-top: 1px solid var(--line); }
.custom-design-grid { display: grid; grid-template-columns: 1.25fr .95fr; gap: 14px; margin-bottom: 18px; }
.custom-design-grid.prompt-only { grid-template-columns: 1fr; }
.simple-prompt-card {
  display: grid;
  grid-template-columns: minmax(0, .9fr) minmax(360px, 1.1fr);
  gap: 28px;
  align-items: center;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background:
    radial-gradient(circle at 8% 15%, rgba(237, 106, 59, .12), transparent 16rem),
    var(--surface);
}
.simple-prompt-copy h2 { margin: 5px 0 9px; font-size: clamp(1.5rem, 2.5vw, 2.25rem); }
.simple-prompt-copy p { margin-bottom: 9px; color: var(--ink-muted); }
.simple-prompt-form { display: grid; gap: 9px; }
.simple-prompt-form textarea { min-height: 116px; }
.simple-prompt-form .button { justify-self: start; }
.prompt-designer { display: flex; flex-direction: column; gap: 9px; padding: 17px; border: 1px solid var(--line); border-radius: 13px; background: var(--surface-muted); }
.prompt-designer label { font-weight: 800; }
.prompt-designer .button { align-self: flex-start; }
.custom-request { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-bottom: 18px; padding: 14px 16px; border: 1px solid #acd4c4; border-radius: 12px; background: #eff8f4; }
.custom-request.unresolved { border-color: #ddc47e; background: #fff8e7; }
.custom-request strong { display: block; margin-bottom: 3px; }
.custom-request p { margin: 0; color: var(--ink-muted); font-size: .78rem; }
.custom-request-tags { display: flex; flex-wrap: wrap; justify-content: flex-end; gap: 6px; }
.custom-request-tags span { padding: 5px 8px; border-radius: 999px; background: var(--surface); border: 1px solid var(--line); font-size: .68rem; font-weight: 800; }
.builder-columns { display: grid; grid-template-columns: repeat(3, minmax(0, 1fr)); gap: 14px; align-items: start; }
.builder-lane { min-width: 0; padding: 14px; background: var(--surface-muted); border: 1px solid var(--line); border-radius: 13px; }
.builder-lane-head { display: grid; grid-template-columns: 34px 1fr; align-items: center; gap: 10px; margin-bottom: 12px; }
.builder-lane-head strong, .builder-lane-head small { display: block; }
.builder-lane-head small { color: var(--ink-muted); font-size: .7rem; }
.builder-icon { width: 32px; height: 32px; display: grid; place-items: center; border-radius: 9px; background: var(--forest-900); color: white; font: 600 1rem var(--font-serif); }
.option-grid.compact { grid-template-columns: 1fr; max-height: 350px; overflow: auto; padding-right: 3px; }
.option-grid.compact .option-card { padding: 10px; background: var(--surface); }
.option-grid.compact .option-card small { font-size: .69rem; }
.lane-add { margin-top: 10px; border: 1px dashed #91aaa2; border-radius: 11px; background: var(--surface); }
.lane-add > summary { min-height: 50px; display: flex; align-items: center; justify-content: center; gap: 9px; padding: 9px 12px; color: var(--forest-700); cursor: pointer; list-style: none; text-align: left; }
.lane-add > summary::-webkit-details-marker { display: none; }
.lane-add > summary:hover, .lane-add[open] > summary { background: var(--forest-100); }
.lane-add > summary:focus-visible { outline: 3px solid rgba(57, 115, 151, .35); outline-offset: 2px; }
.lane-add > summary > span:last-child { display: grid; }
.lane-add > summary strong { font-size: .78rem; }
.lane-add > summary small { color: var(--ink-muted); font-size: .63rem; }
.lane-add-icon { width: 27px; height: 27px; display: grid; place-items: center; flex: 0 0 auto; border-radius: 50%; background: var(--forest-900); color: white; font-size: 1rem; font-weight: 500; transition: transform .18s ease; }
.lane-add[open] .lane-add-icon { transform: rotate(45deg); }
.lane-add-form { padding: 13px; border-top: 1px dashed #91aaa2; }
.lane-add:not([open]) > .lane-add-form { display: none; }
.lane-add-form .button { width: 100%; }
.lane-add-form .tiny { margin: 0; font-size: .66rem; }
.builder-footer { display: flex; align-items: center; justify-content: space-between; gap: 18px; margin-top: 18px; padding-top: 16px; border-top: 1px solid var(--line); }
.analysis-module-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(210px, 1fr)); gap: 10px; }
.analysis-module { min-width: 0; padding: 15px; border: 1px solid var(--line); border-radius: 11px; background: linear-gradient(145deg, var(--surface), var(--surface-muted)); }
.analysis-module strong { display: block; margin-bottom: 5px; }
.analysis-module p { margin: 0; color: var(--ink-muted); font-size: .8rem; }
.button-row { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 16px; }
.status-badge { display: inline-flex; align-items: center; width: fit-content; padding: 5px 9px; border-radius: 999px; background: var(--forest-100); color: var(--forest-700); font-size: .72rem; font-weight: 800; }
.r-workbench { display: grid; grid-template-columns: 190px minmax(0, 1fr); min-height: 720px; overflow: hidden; border: 1px solid #1f4038; border-radius: 15px; background: #071c18; box-shadow: 0 18px 42px rgba(8, 29, 24, .18); }
.r-sidebar { padding: 20px 12px; background: #0d2a24; color: #d8e7e2; border-right: 1px solid #24443c; }
.r-sidebar .module-category { margin: 0 8px 15px; color: #f2a389; }
.r-file { width: 100%; display: grid; grid-template-columns: 22px 1fr; align-items: center; gap: 2px 9px; padding: 9px 10px; border: 1px solid transparent; border-radius: 8px; background: transparent; color: #bcd0ca; text-align: left; cursor: pointer; }
.r-file.active { border-color: rgba(255,255,255,.1); background: rgba(255,255,255,.09); color: white; }
.r-file:disabled { opacity: .45; cursor: not-allowed; }
.r-file span { width: 22px; height: 22px; display: grid; place-items: center; border-radius: 5px; background: #2a8b71; font-size: .7rem; font-weight: 900; }
.r-file small { grid-column: 2; color: #7f9e95; font-size: .62rem; }
.r-sidebar-stats { margin-top: 18px; }
.r-meta { display: grid; grid-template-columns: 28px 1fr; align-items: baseline; gap: 6px; margin: 20px 10px 0; }
.r-meta strong { color: white; font-size: 1.05rem; }
.r-meta small { color: #93aea6; }
.r-main { min-width: 0; display: grid; grid-template-rows: auto minmax(500px, 1fr) auto; }
.r-toolbar { display: flex; align-items: center; justify-content: space-between; gap: 18px; padding: 13px 16px; background: #12352d; color: white; border-bottom: 1px solid #24443c; }
.r-toolbar > div:first-child { display: grid; }
.r-toolbar .eyebrow { color: #f2a389; }
.r-toolbar small { color: #a9c1ba; }
.r-toolbar .button-row { justify-content: flex-end; margin: 0; }
.r-editor-frame { min-width: 0; display: grid; grid-template-columns: 52px minmax(0, 1fr); overflow: hidden; background: #071c18; }
.r-line-numbers { width: auto; max-height: none; margin: 0; padding: 18px 10px; overflow: hidden; border-radius: 0; background: #0a241f; color: #5e8278; text-align: right; user-select: none; font: .82rem/1.65 "SFMono-Regular", Consolas, monospace; }
.code-editor { width: 100%; min-height: 580px; margin: 0; padding: 18px; resize: vertical; border: 0; border-radius: 0; outline: none; background: #071c18; color: #dcece6; caret-color: #f2a389; font: .82rem/1.65 "SFMono-Regular", Consolas, monospace; tab-size: 2; white-space: pre; overflow: auto; }
.code-editor:focus { box-shadow: inset 0 0 0 1px #2a8b71; }
.code-editor.readonly { background: #0a211c; color: #bdd1cb; cursor: text; }
.r-console { border-top: 1px solid #24443c; background: #0a241f; }
.r-console-head { display: flex; justify-content: space-between; padding: 8px 14px; color: #9bb5ad; font-size: .68rem; font-weight: 800; letter-spacing: .05em; text-transform: uppercase; }
.r-console pre { min-height: 90px; max-height: 180px; margin: 0; padding: 12px 14px; border-radius: 0; background: #061713; color: #bcd3cc; white-space: pre-wrap; }
.education-intro { display: grid; grid-template-columns: minmax(0, 1fr) auto; gap: 26px; align-items: end; padding: 28px; border-radius: 15px; background: linear-gradient(135deg, var(--forest-950), #204f43); color: white; }
.education-intro h2 { margin-top: 5px; color: white; font-size: clamp(1.8rem, 4vw, 3rem); }
.education-intro p { max-width: 750px; margin-bottom: 0; color: #c9dbd5; }
.education-intro .eyebrow { color: #f2a389; }
.education-path { display: grid; gap: 8px; }
.education-path span { padding: 7px 10px; border: 1px solid rgba(255,255,255,.18); border-radius: 999px; color: #dce8e4; font-size: .72rem; font-weight: 800; }
.education-section { display: grid; gap: 13px; padding-top: 8px; }
.education-section > div:first-child h2 { margin: 3px 0; }
.education-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 12px; }
.education-card { overflow: hidden; border: 1px solid var(--line); border-radius: 14px; background: var(--surface); }
.education-card-head { padding: 20px 20px 15px; border-bottom: 1px solid var(--line); background: var(--surface-subtle); }
.education-card-head h3 { margin: 4px 0 5px; font: 500 1.45rem var(--font-serif); }
.education-card-head p { margin: 0; color: var(--ink-muted); }
.learning-goal { padding: 14px 20px; background: var(--forest-100); }
.learning-goal span { color: var(--forest-700); font-size: .66rem; font-weight: 900; letter-spacing: .08em; text-transform: uppercase; }
.learning-goal p { margin: 3px 0 0; font-weight: 650; }
.education-card dl { display: grid; gap: 0; margin: 0; padding: 6px 20px; }
.education-card dl > div { padding: 11px 0; border-bottom: 1px solid #ece8de; }
.education-card dt { margin-bottom: 3px; color: var(--forest-700); font-size: .7rem; font-weight: 900; letter-spacing: .04em; text-transform: uppercase; }
.education-card dd { margin: 0; color: var(--ink-muted); font-size: .82rem; line-height: 1.55; }
.education-code { padding: 14px 20px 18px; }
.education-code > span { color: var(--ink-muted); font-size: .7rem; font-weight: 800; }
.education-code pre { max-height: none; margin: 6px 0 0; padding: 11px 12px; white-space: pre-wrap; }
.education-code p { margin: 9px 0; color: var(--ink-muted); font-size: .8rem; }
.education-code details { border-top: 1px solid var(--line); padding-top: 9px; }
.education-code summary, .study-check summary { color: var(--forest-700); font-size: .78rem; font-weight: 800; cursor: pointer; }
.study-check { margin: 0 20px 20px; padding: 13px 14px; border: 1px solid #e0bb65; border-radius: 10px; background: #fff8e6; }
.study-check p { margin: 9px 0 0; color: var(--ink-muted); font-size: .82rem; }
.education-library-link { display: inline-block; margin-top: 13px; color: white; font-weight: 800; }
.education-caution { border-left: 5px solid var(--gold); }
.package-tags { display: flex; flex-wrap: wrap; gap: 5px; margin-top: 12px; }
.package-tags span { padding: 4px 7px; border-radius: 999px; background: var(--paper-deep); color: var(--ink-muted); font-size: .64rem; font-weight: 750; }
.result-hero { padding: 30px; border-left: 5px solid var(--coral); }
.result-hero p { font: 400 1.25rem/1.55 var(--font-serif); margin-bottom: 0; }
.metric-row { display: grid; grid-template-columns: repeat(4, 1fr); gap: 1px; overflow: hidden; border: 1px solid var(--line); border-radius: 12px; background: var(--line); }
.metric { padding: 18px; background: var(--surface); }
.metric span { display: block; color: var(--ink-muted); font-size: .74rem; text-transform: uppercase; letter-spacing: .06em; }
.metric strong { display: block; margin-top: 5px; font: 500 1.55rem var(--font-serif); }

.issue-list, .plain-list { margin: 0; padding: 0; list-style: none; display: grid; gap: 10px; }
.issue { display: grid; grid-template-columns: 10px 1fr; gap: 10px; }
.issue::before { content: ""; width: 8px; height: 8px; margin-top: 8px; border-radius: 50%; background: var(--gold); }
.issue.critical::before { background: var(--red); }
.issue.info::before { background: var(--blue); }
.issue small { color: var(--ink-muted); }

.table-wrap { overflow-x: auto; border: 1px solid var(--line); border-radius: 11px; }
table { width: 100%; border-collapse: collapse; font-size: .83rem; }
th, td { padding: 11px 12px; border-bottom: 1px solid #e6e2d8; text-align: left; vertical-align: top; }
th { background: var(--surface-muted); color: var(--ink-muted); font-size: .72rem; letter-spacing: .04em; text-transform: uppercase; }
tr:last-child td { border-bottom: 0; }
code, pre { font-family: "SFMono-Regular", Consolas, monospace; }
pre {
  max-height: 480px;
  overflow: auto;
  padding: 18px;
  background: var(--forest-950);
  color: #dcece6;
  border-radius: 11px;
  font-size: .78rem;
  line-height: 1.6;
  white-space: pre;
}
.plot-frame { padding: 14px; background: #fff; border: 1px solid var(--line); border-radius: 12px; }
.plot-frame img { width: 100%; }
.section-stack { display: grid; grid-template-columns: minmax(0, 1fr); gap: 18px; margin-top: 24px; }
.section-stack > *, .grid > *, .card { min-width: 0; }

.empty {
  min-height: 250px;
  display: grid;
  place-content: center;
  justify-items: center;
  text-align: center;
  color: var(--ink-muted);
}
.empty-mark { font: 500 3rem var(--font-serif); color: var(--coral); }
.breadcrumb { display: flex; gap: 8px; align-items: center; margin-bottom: 24px; color: var(--ink-muted); font-size: .82rem; }
.breadcrumb a { color: var(--forest-700); }
.aside-sticky { position: sticky; top: 92px; display: grid; gap: 18px; }

.public-teaser { display: grid; gap: 28px; padding: 90px 0; }
.learning-link { color: inherit; text-decoration: none; }
.learning-link > span { color: var(--coral); font: 500 1.8rem var(--font-serif); }
.learning-link h3 { margin: 9px 0 7px; font-size: 1.2rem; }
.learning-link p { margin: 0; color: var(--ink-muted); }
.learning-link:hover { border-color: var(--forest-700); transform: translateY(-2px); }

.site-footer { padding: 54px 0; border-top: 1px solid rgba(16,45,39,.12); background: var(--forest-950); color: white; }
.footer-grid { display: grid; grid-template-columns: 1.4fr 1fr .8fr; gap: 50px; }
.footer-grid > div { display: flex; flex-direction: column; align-items: flex-start; gap: 8px; }
.footer-grid p { max-width: 440px; color: #afc7c0; }
.footer-grid strong { color: #f2a389; font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; }
.footer-grid a:not(.brand) { color: #d8e5e1; text-decoration: none; font-size: .86rem; }
.footer-grid a:hover { color: white; text-decoration: underline; }
.site-footer .brand-mark { color: var(--forest-950); background: white; }

.account-layout { display: grid; grid-template-columns: minmax(0, 1.2fr) minmax(300px, .8fr); gap: 18px; align-items: start; }
.account-layout + .account-layout { margin-top: 18px; }
.account-layout .card + .card { margin-top: 18px; }
.avatar-large { width: 48px; height: 48px; font-size: 1.15rem; }
.identity-list { display: flex; flex-wrap: wrap; gap: 8px; margin: 16px 0; }
.identity-chip { padding: 7px 10px; border-radius: 999px; background: var(--forest-100); color: var(--forest-800); font-size: .76rem; font-weight: 800; text-transform: capitalize; }
.session-list { display: grid; grid-template-columns: minmax(0, 1fr); gap: 0; margin: 0; padding: 0; list-style: none; }
.session-row { min-width: 0; max-width: 100%; display: flex; justify-content: space-between; gap: 14px; padding: 13px 0; border-top: 1px solid var(--line); }
.session-row:first-child { border-top: 0; }
.session-row > div { width: 0; min-width: 0; flex: 1 1 0; }
.session-row > .status-pill { flex: 0 0 auto; }
.session-row strong, .session-row span, .session-row small { display: block; }
.session-row span { overflow: hidden; color: var(--ink-muted); font-size: .78rem; text-overflow: ellipsis; white-space: nowrap; }
.session-row small { color: var(--ink-muted); font-size: .7rem; }
.privacy-control { display: flex; align-items: center; justify-content: space-between; gap: 30px; margin-top: 18px; border-left: 5px solid var(--blue); }
.privacy-control p { max-width: 720px; margin-bottom: 0; color: var(--ink-muted); }

/* Team collaboration */
.team-invite-banner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 24px;
  padding: 18px 22px;
  border: 1px solid #d6a43a;
  border-radius: var(--radius);
  background: #fff3ce;
}
.team-invite-banner strong { display: block; margin-top: 3px; }
.team-layout { display: grid; grid-template-columns: minmax(0, 1fr) 350px; gap: 28px; align-items: start; }
.team-detail-grid { display: grid; grid-template-columns: minmax(0, 1.5fr) minmax(310px, .7fr); gap: 22px; align-items: start; }
.team-card { display: grid; grid-template-columns: 54px minmax(0, 1fr); gap: 16px; text-decoration: none; }
.team-card:hover { border-color: var(--forest-700); transform: translateY(-2px); }
.team-card-mark, .member-avatar {
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  color: white;
  background: var(--forest-800);
  font-weight: 850;
  letter-spacing: -.04em;
}
.team-card-mark { width: 54px; height: 54px; border-radius: 18px 18px 18px 5px; }
.member-avatar { width: 40px; height: 40px; border-radius: 50%; }
.invitation-card { display: flex; align-items: center; justify-content: space-between; gap: 24px; border-left: 5px solid var(--gold); }
.member-list, .pending-list { display: grid; gap: 0; margin: 0; padding: 0; list-style: none; }
.member-row {
  display: grid;
  grid-template-columns: 40px minmax(130px, 1fr) auto auto;
  align-items: center;
  gap: 12px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}
.member-row:first-child { border-top: 0; }
.member-row small, .pending-row small, .shared-project-row small { display: block; color: var(--ink-muted); font-size: .75rem; }
.member-role-form { display: flex; align-items: center; gap: 7px; }
.member-role-form select { min-height: 36px; padding: 6px 30px 6px 9px; }
.icon-button {
  width: 34px;
  height: 34px;
  padding: 0;
  border: 1px solid var(--line);
  border-radius: 9px;
  color: var(--ink);
  background: transparent;
  cursor: pointer;
}
.icon-button:hover { border-color: var(--forest-700); background: var(--forest-100); }
.icon-button.danger { color: var(--red); }
.role-guide { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 8px; margin-top: 18px; padding-top: 18px; border-top: 1px solid var(--line); color: var(--ink-muted); font-size: .72rem; }
.role-guide strong { color: var(--ink); }
.shared-project-row, .pending-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 13px 0;
  border-top: 1px solid var(--line);
}
.shared-project-row:first-of-type, .pending-row:first-child { border-top: 0; }
.shared-project-row a { min-width: 0; color: var(--ink); text-decoration: none; }
.shared-project-row a:hover strong { text-decoration: underline; }
.attach-project-form { display: grid; grid-template-columns: minmax(0, 1fr) auto; align-items: end; gap: 12px; margin-top: 20px; padding-top: 20px; border-top: 1px solid var(--line); }
.attach-project-form [data-form-error] { grid-column: 1 / -1; }
.compact-form { gap: 10px; margin-top: 14px; }
.team-project-card .button { width: 100%; margin-top: 14px; }
.readonly-banner { border-left: 5px solid var(--blue); background: var(--surface-muted); }
.option-card.readonly { cursor: default; opacity: .82; }

/* Public learning library */
.public-page { background: var(--paper); }
.public-nav { position: static; }
.public-nav .nav-links, .public-auth-actions { display: flex; align-items: center; gap: 8px; }
.public-mobile-menu { display: none; }
.public-auth-actions[data-auth-state="loading"] { min-width: 190px; min-height: 36px; opacity: .68; }
.public-auth-actions .nav-user-link { display: inline-flex; align-items: center; gap: 7px; }
.public-auth-actions .avatar { width: 28px; height: 28px; font-size: .75rem; }
.public-footer-auth { display: contents; }
.public-auth-actions .nav-user-link span:last-child { max-width: 120px; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }
.library-hero { padding: 82px 0 60px; background: linear-gradient(135deg, var(--forest-950), #204f43); color: white; }
.library-hero h1 { max-width: 900px; color: white; }
.library-hero .lede { color: #c9dbd5; }
.library-hero .eyebrow { color: #f2a389; }
.library-hero .button-secondary { color: white; border-color: rgba(255,255,255,.72); }
.library-hero .button-secondary:hover { background: rgba(255,255,255,.1); }
.library-hero-grid { display: grid; grid-template-columns: minmax(0, 1fr) 380px; gap: 70px; align-items: center; }
.article-hero .library-hero-grid { grid-template-columns: minmax(0, 860px); }
.learning-visual { padding: 22px; border: 1px solid rgba(255,255,255,.18); border-radius: 18px; background: rgba(255,255,255,.07); }
.learning-visual svg { width: 100%; height: auto; }
.library-section { padding: 72px 0; }
.library-section + .library-section { border-top: 1px solid rgba(16,45,39,.12); }
.article-grid { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 18px; }
.article-card { display: flex; flex-direction: column; text-decoration: none; }
.article-card .module-category { margin-bottom: 9px; }
.article-card h2 { font-size: 1.7rem; }
.article-card p { flex: 1; color: var(--ink-muted); }
.article-card strong { color: var(--forest-700); }
.article-layout { display: grid; grid-template-columns: minmax(0, 760px) 260px; gap: 60px; align-items: start; }
.article-body h2 { margin-top: 50px; scroll-margin-top: 30px; }
.article-body h3 { margin-top: 28px; font-size: 1.18rem; }
.article-body p, .article-body li { color: var(--ink); }
.article-body pre { overflow-x: auto; padding: 18px; border-radius: 12px; background: #071c17; color: #d4e7e1; }
.article-body .learning-visual { margin: 28px 0; background: #fff; border-color: var(--line); }
.article-toc { position: sticky; top: 24px; display: grid; gap: 8px; padding: 18px; border-left: 2px solid var(--coral); }
.article-toc strong { margin-bottom: 4px; }
.article-toc a { color: var(--forest-700); font-size: .8rem; text-decoration: none; }
.callout { padding: 20px; border-radius: 12px; background: var(--forest-100); }
.callout.warning { background: #fff1d3; }
.decision-flow { display: grid; gap: 10px; margin: 24px 0; }
.decision-flow > div { padding: 16px; border: 1px solid var(--line); border-radius: 11px; background: var(--surface); }
.decision-flow span { display: block; color: var(--coral); font-size: .68rem; font-weight: 900; text-transform: uppercase; }
.source-list { padding-left: 20px; }
.source-list a { color: var(--forest-700); }
.privacy-table { width: 100%; }
.privacy-table th { width: 28%; }

.toast-region { position: fixed; right: 20px; bottom: 20px; z-index: 100; display: grid; gap: 10px; }
.toast { width: min(360px, calc(100vw - 40px)); padding: 13px 16px; background: var(--forest-950); color: white; border-radius: 10px; box-shadow: var(--shadow); font-size: .85rem; animation: toast-in .2s ease; }
.toast.error { background: #7a2c2c; }
@keyframes toast-in { from { opacity: 0; transform: translateY(8px); } }

.skeleton { position: relative; overflow: hidden; min-height: 80px; background: var(--paper-deep); border-radius: 10px; }
.skeleton::after { content: ""; position: absolute; inset: 0; transform: translateX(-100%); background: linear-gradient(90deg, transparent, rgba(255,255,255,.65), transparent); animation: shimmer 1.4s infinite; }
@keyframes shimmer { to { transform: translateX(100%); } }

:root[data-theme="dark"] {
  color-scheme: dark;
  --paper: #081a16;
  --paper-deep: #0f2821;
  --surface: #132d27;
  --surface-muted: #10261f;
  --surface-subtle: #18352e;
  --ink: #edf5f1;
  --ink-muted: #a8beb6;
  --line: #36574d;
  --forest-100: #24483e;
  --forest-700: #7fc4b1;
  --forest-800: #c0d9d1;
  --coral: #ff8b61;
  --coral-soft: #4a2d25;
  --red-soft: #4c2528;
  --blue-soft: #183849;
  --nav-bg: rgba(8, 26, 22, .91);
  --soft-border: rgba(199, 224, 216, .15);
  --shadow: 0 20px 60px rgba(0, 0, 0, .32);
}
:root[data-theme="dark"] .site-nav { border-bottom-color: var(--soft-border); }
:root[data-theme="dark"] .nav-menu-panel { border-color: var(--line); background: var(--surface); box-shadow: 0 18px 45px rgba(0,0,0,.42); }
:root[data-theme="dark"] .avatar { background: var(--coral-soft); color: #ffb59a; }
:root[data-theme="dark"] .nav-logout { color: #ffaaa8; }
:root[data-theme="dark"] .button:hover { background: #27584c; }
:root[data-theme="dark"] .button-ghost:hover,
:root[data-theme="dark"] .button-secondary:hover { background: var(--forest-100); color: var(--ink); }
:root[data-theme="dark"] .form-error { color: #ffc2c0; background: var(--red-soft); }
:root[data-theme="dark"] .privacy-banner { border-color: #89513e; color: #ffd2c2; background: var(--coral-soft); }
:root[data-theme="dark"] .team-invite-banner { border-color: #806b34; background: #3b3118; }
:root[data-theme="dark"] .role-owner { color: #ffc49f; background: #4a3020; }
:root[data-theme="dark"] .role-admin { color: #f3d68d; background: #443818; }
:root[data-theme="dark"] .role-editor { color: #9ee0c9; background: #173d32; }
:root[data-theme="dark"] .drop-zone { background: var(--surface-subtle); }
:root[data-theme="dark"] .status-completed,
:root[data-theme="dark"] .confidence-high { color: #9ee0c9; background: #173d32; }
:root[data-theme="dark"] .status-processing,
:root[data-theme="dark"] .status-queued,
:root[data-theme="dark"] .confidence-medium { color: #f3d68d; background: #443818; }
:root[data-theme="dark"] .status-failed,
:root[data-theme="dark"] .confidence-low { color: #ffb5b3; background: var(--red-soft); }
:root[data-theme="dark"] .status-needs_clarification { color: #a9d6f3; background: var(--blue-soft); }
:root[data-theme="dark"] .analysis-design { border-color: var(--line); }
:root[data-theme="dark"] .disclosure-icon { color: var(--ink); }
:root[data-theme="dark"] .custom-request { border-color: #477969; background: #14382e; }
:root[data-theme="dark"] .custom-request.unresolved { border-color: #806b34; background: #3b3118; }
:root[data-theme="dark"] .lane-add { border-color: #56776d; }
:root[data-theme="dark"] .education-card dl > div,
:root[data-theme="dark"] th,
:root[data-theme="dark"] td { border-color: var(--line); }
:root[data-theme="dark"] .study-check,
:root[data-theme="dark"] .callout.warning { border-color: #806b34; background: #3b3118; }
:root[data-theme="dark"] .callout { background: var(--forest-100); }
:root[data-theme="dark"] .library-section + .library-section { border-top-color: var(--soft-border); }
:root[data-theme="dark"] .site-footer { border-top-color: var(--soft-border); }
:root[data-theme="dark"] .skeleton::after { background: linear-gradient(90deg, transparent, rgba(255,255,255,.12), transparent); }
:root[data-theme="dark"] ::selection { background: #b9502f; color: #fff; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    scroll-behavior: auto !important;
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
  }
}

@media (max-width: 900px) {
  .hero-grid, .dashboard-grid, .auth-layout, .account-layout, .team-layout, .team-detail-grid, .library-hero-grid, .article-layout { grid-template-columns: 1fr; }
  .auth-story { display: none; }
  .hero { background: var(--paper); }
  .grid-3 { grid-template-columns: repeat(2, 1fr); }
  .aside-sticky { position: static; }
  .metric-row { grid-template-columns: repeat(2, 1fr); }
  .builder-columns { grid-template-columns: 1fr; }
  .custom-design-grid, .simple-prompt-card, .education-grid { grid-template-columns: 1fr; }
  .r-workbench { grid-template-columns: 1fr; }
  .r-sidebar { display: flex; align-items: stretch; gap: 8px; padding: 10px; overflow-x: auto; border-right: 0; border-bottom: 1px solid #24443c; }
  .r-sidebar > .module-category, .r-sidebar-stats { display: none; }
  .r-file { min-width: 150px; }
  .education-intro { grid-template-columns: 1fr; }
  .education-path { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .article-toc { position: static; order: -1; }
}
@media (max-width: 650px) {
  .shell { width: calc(100% - 28px); }
  .site-nav { gap: 8px; padding: 0 14px; }
  .site-nav:not(.public-nav) .brand > span:last-child { display: none; }
  .site-nav > .nav-links { min-width: 0; gap: 2px; }
  .site-nav .nav-link { padding-inline: 6px; }
  .primary-nav-link { display: none; }
  .only-mobile { display: block; }
  .nav-account-name { display: none; }
  .nav-menu > summary { padding-inline: 5px; }
  .nav-menu-panel { position: fixed; top: 62px; right: 14px; width: min(280px, calc(100vw - 28px)); }
  .page { padding-top: 34px; }
  .page-head, .card-head { align-items: start; flex-direction: column; }
  .grid-2, .grid-3, .field-row, .option-grid, .social-login { grid-template-columns: 1fr; }
  .hero h1 { font-size: clamp(3.25rem, 15vw, 4.4rem); }
  .hero-card { transform: none; box-shadow: 12px 14px 0 rgba(16,45,39,.08); }
  .auth-form-wrap { padding: 40px 20px; }
  .metric-row { grid-template-columns: repeat(2, minmax(0, 1fr)); }
  .form-card { padding: 23px; }
  .builder-footer { align-items: stretch; flex-direction: column; }
  .mode-tabs { top: 67px; width: 100%; }
  .mode-tabs .tab { flex: 1; padding-inline: 8px; }
  .analysis-design > summary { align-items: flex-start; padding: 17px; }
  .design-summary-copy small { display: none; }
  .design-summary-meta .status-badge { display: none; }
  .design-content { padding: 16px; }
  .simple-prompt-card { padding: 18px; }
  .simple-prompt-form .button { width: 100%; }
  .custom-request { align-items: flex-start; flex-direction: column; }
  .custom-request-tags { justify-content: flex-start; }
  .r-toolbar { align-items: flex-start; flex-direction: column; }
  .r-toolbar .button-row { justify-content: flex-start; }
  .r-editor-frame { grid-template-columns: 42px minmax(0, 1fr); }
  .code-editor { min-height: 520px; }
  .education-intro { padding: 22px; }
  .education-path { grid-template-columns: 1fr; }
  .footer-grid, .article-grid { grid-template-columns: 1fr; }
  .site-footer { padding: 40px 0; }
  .privacy-control { align-items: flex-start; flex-direction: column; }
  .team-invite-banner, .invitation-card, .shared-project-row, .pending-row { align-items: flex-start; flex-direction: column; }
  .member-row { grid-template-columns: 40px minmax(0, 1fr) auto; }
  .member-role-form { grid-column: 2 / -1; width: 100%; }
  .member-role-form select { flex: 1; }
  .role-guide { grid-template-columns: 1fr; }
  .attach-project-form { grid-template-columns: 1fr; }
  .library-hero { padding: 56px 0 42px; }
  .public-nav { min-height: 64px; padding-block: 7px; }
  .public-nav .brand > span:last-child { display: inline; }
  .public-nav > .nav-links > .public-main-link,
  .public-nav > .nav-links > .public-auth-actions { display: none; }
  .public-mobile-menu { display: block; }
  .public-mobile-menu > summary { min-height: 38px; padding: 7px 11px; color: var(--white); background: var(--forest-900); font-size: .82rem; font-weight: 800; }
  .public-mobile-menu .nav-menu-panel { top: 58px; }
  .public-mobile-menu .public-auth-actions { display: grid; min-width: 0; padding-top: 5px; border-top: 1px solid var(--line); opacity: 1; }
  .public-mobile-menu .public-auth-actions .button { width: 100%; }
}