/* ===================================================================
   MasterPlan · Sample Templates Tutorial
   Palette echoes public-home/css/landing.css (indigo accent on light).
   =================================================================== */

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

:root {
  --bg-page: #f8f9fc;
  --bg-card: #ffffff;
  --bg-tint: #eef0f7;
  --accent: #6366f1;
  --accent-light: #818cf8;
  --accent-bg: rgba(99, 102, 241, 0.08);
  --text-primary: #1e293b;
  --text-secondary: #475569;
  --text-muted: #64748b;
  --border: rgba(30, 41, 59, 0.1);
  --border-strong: rgba(30, 41, 59, 0.18);
  --warning-bg: #fff7ed;
  --warning-border: #fdba74;
  --warning-fg: #9a3412;
  --click-ring: #d33;
  --radius: 12px;
  --radius-sm: 8px;
  --shadow-soft: 0 1px 2px rgba(15, 23, 42, .04), 0 4px 12px rgba(15, 23, 42, .06);
  --shadow-card: 0 2px 8px rgba(15, 23, 42, .06), 0 1px 3px rgba(15, 23, 42, .04);
  --content-width: 840px;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg-page: #0a0c12;
    --bg-card: #161922;
    --bg-tint: #1c1f2b;
    --accent: #818cf8;
    --accent-light: #a5b4fc;
    --accent-bg: rgba(129, 140, 248, 0.1);
    --text-primary: #f1f5f9;
    --text-secondary: #cbd5e1;
    --text-muted: #94a3b8;
    --border: rgba(148, 163, 184, 0.1);
    --border-strong: rgba(148, 163, 184, 0.2);
    --warning-bg: #1e1408;
    --warning-border: #c2561c;
    --warning-fg: #fdba74;
  }
}

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  scroll-behavior: smooth;
}

body {
  font-family: 'DM Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  background: var(--bg-page);
  color: var(--text-primary);
  line-height: 1.65;
  -webkit-text-size-adjust: 100%;
}

a {
  color: var(--accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

a:hover,
a:focus-visible {
  color: var(--accent-light);
  text-decoration: underline;
}

a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
  border-radius: 2px;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

::selection {
  background: var(--accent);
  color: #fff;
}

/* --- Layout --- */

.page-nav {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(248, 249, 252, 0.92);
  backdrop-filter: saturate(180%) blur(12px);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  border-bottom: 1px solid var(--border);
}

@media (prefers-color-scheme: dark) {
  .page-nav { background: rgba(10, 12, 18, 0.92); }
}

.page-nav__inner {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0.75rem 1.25rem;
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.25rem 1.5rem;
  font-size: 0.9375rem;
}

.page-nav__brand {
  font-weight: 600;
  color: var(--text-primary);
  margin-right: auto;
  letter-spacing: -0.01em;
}

.page-nav__brand-accent {
  color: var(--accent);
}

.page-nav a {
  color: var(--text-secondary);
  font-weight: 500;
}

.page-nav a:hover,
.page-nav a:focus-visible {
  color: var(--accent);
  text-decoration: none;
}

.page-nav a[aria-current="page"] {
  color: var(--text-primary);
  font-weight: 600;
}

.container {
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 2.5rem 1.25rem 3rem;
}

@media (min-width: 720px) {
  .container { padding: 3.5rem 1.5rem 4rem; }
}

/* --- Headings & body --- */

h1 {
  font-size: clamp(2rem, 4vw + 1rem, 2.75rem);
  line-height: 1.15;
  letter-spacing: -0.02em;
  margin-bottom: 0.5rem;
  font-weight: 700;
}

h1 .eyebrow {
  display: block;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

h2 {
  font-size: 1.625rem;
  line-height: 1.25;
  letter-spacing: -0.015em;
  margin-top: 3rem;
  margin-bottom: 0.75rem;
  font-weight: 700;
}

h3 {
  font-size: 1.1875rem;
  line-height: 1.3;
  margin-top: 2rem;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

p {
  margin-bottom: 1rem;
  color: var(--text-secondary);
  font-size: 1rem;
  max-width: 65ch;
}

p strong { color: var(--text-primary); }

ul, ol {
  margin: 0 0 1rem 1.5rem;
  color: var(--text-secondary);
}

li { margin-bottom: 0.375rem; }

li::marker { color: var(--accent); }

.lede {
  font-size: 1.125rem;
  color: var(--text-secondary);
  max-width: 60ch;
}

/* --- TL;DR strip --- */

.tldr {
  display: block;
  margin: 0.5rem 0 1.25rem;
  padding: 0.625rem 0.875rem;
  background: var(--accent-bg);
  border-left: 3px solid var(--accent);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  font-size: 0.9375rem;
  max-width: 65ch;
}

.tldr strong {
  color: var(--accent);
  letter-spacing: 0.04em;
  font-weight: 700;
  margin-right: 0.375rem;
}

/* --- Primary CTA --- */

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.625rem;
  margin: 1.25rem 0 1.75rem;
  align-items: center;
}

.cta-button {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.25rem;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  font-weight: 600;
  font-size: 1rem;
  box-shadow: var(--shadow-soft);
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.cta-button:hover,
.cta-button:focus-visible {
  background: var(--accent-light);
  color: #fff;
  text-decoration: none;
  transform: translateY(-1px);
  box-shadow: 0 4px 14px rgba(99, 102, 241, .35);
}

.cta-meta {
  font-size: 0.875rem;
  color: var(--text-muted);
}

.cta-secondary {
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  font-weight: 500;
  font-size: 0.9375rem;
}

/* --- Field-types in-page chip TOC --- */

.ft-toc {
  position: sticky;
  top: 3.25rem;
  z-index: 50;
  margin: 1rem -1.25rem 2rem;
  padding: 0.5rem 1.25rem;
  background: rgba(248, 249, 252, 0.95);
  backdrop-filter: saturate(180%) blur(10px);
  -webkit-backdrop-filter: saturate(180%) blur(10px);
  border-bottom: 1px solid var(--border);
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  font-size: 0.875rem;
}

@media (prefers-color-scheme: dark) {
  .ft-toc { background: rgba(10, 12, 18, 0.95); }
}

.ft-toc__label {
  color: var(--text-muted);
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.75rem;
  align-self: center;
  margin-right: 0.25rem;
}

.ft-toc a {
  display: inline-block;
  padding: 0.25rem 0.625rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-secondary);
  font-weight: 500;
  transition: all 0.15s ease;
}

.ft-toc a:hover,
.ft-toc a:focus-visible {
  border-color: var(--accent);
  color: var(--accent);
  text-decoration: none;
}

@media (max-width: 720px) {
  .ft-toc {
    position: static;
    margin: 1rem 0 2rem;
    padding: 0.75rem;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
  }
}

/* --- Phase blocks (collapsible chapters in walkthrough) --- */

.phase {
  margin-top: 2.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--bg-card);
  box-shadow: var(--shadow-card);
  overflow: hidden;
}

.phase[open] { background: var(--bg-card); }

.phase > summary {
  list-style: none;
  cursor: pointer;
  padding: 1.125rem 1.25rem;
  display: flex;
  align-items: center;
  gap: 0.875rem;
  user-select: none;
}

.phase > summary::-webkit-details-marker { display: none; }

.phase > summary::after {
  content: '▾';
  margin-left: auto;
  color: var(--text-muted);
  font-size: 0.875rem;
  transition: transform 0.2s ease;
}

.phase:not([open]) > summary::after { transform: rotate(-90deg); }

.phase__num {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 2rem;
  height: 2rem;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  font-weight: 700;
  font-size: 0.9375rem;
  flex-shrink: 0;
}

.phase__title {
  font-weight: 700;
  font-size: 1.125rem;
  color: var(--text-primary);
  letter-spacing: -0.01em;
}

.phase__hint {
  color: var(--text-muted);
  font-size: 0.875rem;
  margin-left: 0.5rem;
}

.phase__body {
  padding: 0.5rem 1.25rem 1.5rem;
  border-top: 1px solid var(--border);
}

.phase__body .step:first-child {
  border-top: none;
  padding-top: 1.25rem;
  margin-top: 0;
}

/* --- Show / hide screenshot collapsibles --- */

details.shot-toggle {
  margin: 1rem 0 0.5rem;
}

details.shot-toggle > summary {
  list-style: none;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 0.375rem;
  padding: 0.375rem 0.875rem;
  background: var(--bg-tint);
  border: 1px solid var(--border);
  border-radius: 999px;
  color: var(--text-secondary);
  font-size: 0.875rem;
  font-weight: 500;
  transition: all 0.15s ease;
}

details.shot-toggle > summary::-webkit-details-marker { display: none; }

details.shot-toggle > summary::after {
  content: '▾';
  font-size: 0.75rem;
}

details.shot-toggle:not([open]) > summary::after { content: '▸'; }

details.shot-toggle > summary:hover {
  border-color: var(--accent);
  color: var(--accent);
}

details.shot-toggle figure {
  margin-top: 0.75rem;
}

/* --- Gallery cards (preset showcase) --- */

.gallery {
  margin-top: 1.5rem;
  display: grid;
  gap: 0.875rem;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.gallery__card {
  padding: 1rem 1.125rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-left: 3px solid var(--gallery-color, var(--accent));
  border-radius: var(--radius-sm);
  font-size: 0.9375rem;
}

.gallery__name {
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.375rem;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.gallery__dot {
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
  background: var(--gallery-color, var(--accent));
  flex-shrink: 0;
}

.gallery__fields {
  font-size: 0.875rem;
  color: var(--text-muted);
  line-height: 1.45;
}

/* --- Comparison table (without/with template) --- */

.compare {
  margin: 1.25rem 0;
  width: 100%;
  border-collapse: separate;
  border-spacing: 0;
  font-size: 0.9375rem;
}

.compare th,
.compare td {
  padding: 0.75rem 0.875rem;
  text-align: left;
  border-bottom: 1px solid var(--border);
  vertical-align: top;
}

.compare th {
  background: var(--bg-tint);
  color: var(--text-primary);
  font-weight: 600;
  font-size: 0.875rem;
  letter-spacing: 0.02em;
}

.compare td:first-child {
  color: var(--text-muted);
  font-weight: 500;
  width: 28%;
}

.compare td { color: var(--text-secondary); }

.compare tr:last-child td { border-bottom: none; }

.compare__without { color: var(--text-muted); }
.compare__with { color: var(--text-primary); font-weight: 500; }

/* --- Universal prev / next page-nav footer --- */

.pager {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin: 3rem 0 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.pager__link {
  flex: 1 1 220px;
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 0.875rem 1.125rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text-primary);
  transition: border-color 0.2s ease, transform 0.2s ease;
}

.pager__link:hover,
.pager__link:focus-visible {
  border-color: var(--accent);
  text-decoration: none;
  transform: translateY(-1px);
}

.pager__link--next { text-align: right; }

.pager__dir {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.pager__title {
  font-weight: 600;
  color: var(--text-primary);
  font-size: 1rem;
}

/* --- Print extras --- */

@media print {
  .ft-toc,
  .pager,
  details.shot-toggle > summary,
  .cta-button { display: none; }
  details.shot-toggle[open] figure { display: block; }
  details.shot-toggle:not([open]) figure { display: none; }
  .phase[open] > summary,
  .phase:not([open]) > summary { color: #000; }
  .phase:not([open]) .phase__body { display: block; }
}

/* --- Table of contents --- */

.toc {
  margin-top: 2rem;
  display: grid;
  gap: 1rem;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
}

.toc__card {
  display: block;
  padding: 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow-card);
  color: var(--text-primary);
  transition: transform 0.2s ease, border-color 0.2s ease, box-shadow 0.2s ease;
}

.toc__card:hover,
.toc__card:focus-visible {
  transform: translateY(-2px);
  border-color: var(--accent);
  box-shadow: var(--shadow-soft);
  text-decoration: none;
}

.toc__num {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.toc__title {
  font-size: 1.0625rem;
  font-weight: 600;
  margin-bottom: 0.375rem;
  color: var(--text-primary);
}

.toc__desc {
  font-size: 0.9375rem;
  color: var(--text-muted);
  line-height: 1.5;
}

/* --- Field-type list --- */

.field-types {
  list-style: none;
  margin-left: 0;
  display: grid;
  gap: 0.625rem;
  margin-top: 1rem;
}

.field-types li {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.875rem 1.125rem;
  font-size: 0.9375rem;
  color: var(--text-secondary);
}

.field-types li::marker { content: ''; }

.field-types strong {
  display: inline-block;
  min-width: 7.5rem;
  color: var(--text-primary);
  font-weight: 600;
}

/* --- Status swatches --- */

.status-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin: 1rem 0;
}

.status-chip {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.375rem 0.875rem 0.375rem 0.625rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.875rem;
  color: var(--text-secondary);
}

.status-chip::before {
  content: '';
  width: 0.625rem;
  height: 0.625rem;
  border-radius: 50%;
  background: var(--chip-color, var(--accent));
  flex-shrink: 0;
}

/* --- How-to steps --- */

.steps {
  margin-top: 2rem;
}

.step {
  border-top: 1px solid var(--border);
  padding-top: 2.25rem;
  margin-top: 2.25rem;
}

.step:first-child {
  border-top: none;
  padding-top: 0;
  margin-top: 1rem;
}

.step h3 {
  display: flex;
  align-items: baseline;
  gap: 0.75rem;
  margin-top: 0;
  font-size: 1.25rem;
  letter-spacing: -0.01em;
}

.step__num {
  flex-shrink: 0;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 2rem;
  height: 2rem;
  padding: 0 0.625rem;
  background: var(--accent);
  color: #fff;
  border-radius: 999px;
  font-size: 0.875rem;
  font-weight: 700;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0;
}

.step p {
  margin-bottom: 1.25rem;
  font-size: 1rem;
}

/* --- Annotated screenshots --- */

.shot-frame {
  position: relative;
  margin: 1.25rem 0 0.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow-card);
  /* Lock the 3:2 aspect ratio so absolute-positioned overlays stay aligned. */
  aspect-ratio: 1200 / 800;
}

.shot-frame img {
  width: 100%;
  height: 100%;
  display: block;
}

.click-ring {
  position: absolute;
  width: 56px;
  height: 56px;
  margin-left: -28px;
  margin-top: -28px;
  left: calc(var(--x) / 1200 * 100%);
  top: calc(var(--y) / 800 * 100%);
  border: 4px solid var(--click-ring);
  border-radius: 50%;
  box-shadow: 0 0 0 2px #fff, 0 0 20px rgba(220, 50, 50, 0.55);
  pointer-events: none;
  animation: pulse-ring 1.6s ease-in-out infinite;
}

@keyframes pulse-ring {
  0%, 100% { transform: scale(1); opacity: 1; }
  50%      { transform: scale(1.18); opacity: 0.6; }
}

@media (prefers-reduced-motion: reduce) {
  .click-ring { animation: none; }
}

figcaption {
  display: block;
  font-size: 0.875rem;
  color: var(--text-muted);
  margin-top: 0.625rem;
  font-style: italic;
}

/* --- Tip callout --- */

.tip {
  margin: 1.25rem 0;
  padding: 1rem 1.125rem;
  background: var(--warning-bg);
  border-left: 3px solid var(--warning-border);
  border-radius: var(--radius-sm);
  color: var(--warning-fg);
  font-size: 0.9375rem;
}

.tip strong { color: var(--warning-fg); }

.tip p { color: inherit; margin: 0; }

.tip p + p { margin-top: 0.5rem; }

/* --- Footer --- */

.page-footer {
  margin-top: 4rem;
  padding: 1.5rem 1.25rem;
  border-top: 1px solid var(--border);
  text-align: center;
  font-size: 0.875rem;
  color: var(--text-muted);
}

.page-footer p { color: inherit; margin: 0; max-width: none; }

/* --- Print --- */

@media print {
  body { background: #fff; color: #000; }
  .page-nav { display: none; }
  .container { max-width: none; padding: 1rem; }
  .step { break-inside: avoid; page-break-inside: avoid; }
  .click-ring {
    width: 14px;
    height: 14px;
    margin-left: -7px;
    margin-top: -7px;
    background: #d33;
    border: 2px solid #000;
    box-shadow: none;
    animation: none;
  }
  .toc__card,
  .shot-frame,
  .field-types li,
  .status-chip {
    box-shadow: none;
    border-color: #999;
  }
  a { color: #000; text-decoration: underline; }
  .page-footer { border-color: #999; }
}

/* --- Small viewport tweaks --- */

@media (max-width: 480px) {
  h1 { font-size: 1.875rem; }
  h2 { font-size: 1.375rem; margin-top: 2.25rem; }
  .step h3 { font-size: 1.125rem; }
  .container { padding: 2rem 1rem 2.5rem; }
  .page-nav__inner { font-size: 0.875rem; gap: 0.25rem 1rem; }
  .field-types strong { display: block; min-width: 0; margin-bottom: 0.125rem; }
}