/* Slide Board Puzzle — Privacy Policy
   Warm cream / orange puzzle theme. System fonts only. */

:root {
  --orange: #FF7200;
  --orange-2: #FF9A1F;
  --orange-deep: #E86A00;
  --cream: #FFF7EC;
  --beige: #F7E7D3;
  --card: #FFFFFF;
  --brown: #3B281F;
  --text-2: #78675F;
  --green: #2DA568;
  --border: #F2D8B8;
  --empty: #E8D5C0;
  --tile: #FFFBF5;
  --shadow: 0 10px 28px rgba(59, 40, 31, 0.08);
  --shadow-sm: 0 4px 14px rgba(59, 40, 31, 0.07);
  --header-h: 4.25rem;
  --radius: 1.25rem;
  --radius-sm: 0.85rem;
  --max: 72rem;
  --content: 46rem;
  --font: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --page-top: #FFF7EC;
  --page-bot: #F7E7D3;
  --focus: #FF7200;
  --link: #C85A00;
  --num-bg: linear-gradient(180deg, #FF9A1F 0%, #FF7200 100%);
  --progress: linear-gradient(90deg, #FF7200, #FF9A1F);
}

[data-theme="dark"] {
  --cream: #1A120E;
  --beige: #241812;
  --card: #2C211C;
  --brown: #FFF3E6;
  --text-2: #C4B5AA;
  --border: #4A372C;
  --empty: #3A2C24;
  --tile: #3E2F27;
  --shadow: 0 10px 28px rgba(0, 0, 0, 0.35);
  --shadow-sm: 0 4px 14px rgba(0, 0, 0, 0.28);
  --page-top: #1A120E;
  --page-bot: #2A1C16;
  --link: #FFB060;
  --num-bg: linear-gradient(180deg, #FF9A1F 0%, #FF7200 100%);
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 1rem);
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 1.05rem;
  line-height: 1.7;
  color: var(--brown);
  background: linear-gradient(180deg, var(--page-top) 0%, var(--page-bot) 100%);
  background-attachment: fixed;
  min-height: 100vh;
  position: relative;
}

[data-theme="dark"] body {
  color: var(--brown);
}

img,
svg {
  display: block;
  max-width: 100%;
}

a {
  color: var(--link);
  text-decoration-thickness: 1.5px;
  text-underline-offset: 0.18em;
}

a:hover {
  color: var(--orange);
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

#main:focus,
#main:focus-visible {
  outline: none;
}

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: -4rem;
  z-index: 1000;
  padding: 0.6rem 1rem;
  background: var(--orange);
  color: #fff;
  border-radius: 0.6rem;
  font-weight: 650;
  text-decoration: none;
}

.skip-link:focus {
  top: 0.75rem;
}

/* Background grid + decorative tiles */
.page-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(rgba(242, 216, 184, 0.35) 1px, transparent 1px),
    linear-gradient(90deg, rgba(242, 216, 184, 0.35) 1px, transparent 1px);
  background-size: 44px 44px;
  opacity: 0.45;
}

[data-theme="dark"] .page-bg {
  background-image:
    linear-gradient(rgba(74, 55, 44, 0.55) 1px, transparent 1px),
    linear-gradient(90deg, rgba(74, 55, 44, 0.55) 1px, transparent 1px);
  opacity: 0.35;
}

.deco-tile {
  position: fixed;
  z-index: 0;
  width: 3.4rem;
  height: 3.4rem;
  border-radius: 0.7rem;
  display: grid;
  place-items: center;
  font-weight: 800;
  font-size: 1.15rem;
  color: var(--brown);
  background: linear-gradient(180deg, var(--tile), var(--beige));
  border: 1px solid var(--border);
  box-shadow: var(--shadow-sm);
  opacity: 0.28;
}

.deco-tile--a { top: 7rem; left: 4%; transform: rotate(-8deg); }
.deco-tile--b { top: 38%; right: 5%; transform: rotate(10deg); }
.deco-tile--c { bottom: 12%; left: 7%; transform: rotate(7deg); }
.deco-tile--d { top: 18%; right: 9%; transform: rotate(-12deg); width: 2.6rem; height: 2.6rem; font-size: 0.95rem; }

@media (max-width: 720px) {
  .deco-tile { display: none; }
}

.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 3px;
  width: 0;
  z-index: 80;
  background: var(--progress);
  transform-origin: left;
  pointer-events: none;
}

/* Sticky header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(255, 247, 236, 0.92);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}

[data-theme="dark"] .site-header {
  background: rgba(26, 18, 14, 0.92);
}

.header-inner {
  max-width: var(--max);
  margin: 0 auto;
  min-height: var(--header-h);
  padding: 0.65rem 1.15rem;
  display: flex;
  align-items: center;
  gap: 0.85rem;
}

.brand {
  display: flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  color: inherit;
  min-width: 0;
}

.brand-text {
  display: flex;
  flex-direction: column;
  min-width: 0;
}

.brand-name {
  font-weight: 700;
  font-size: 0.92rem;
  letter-spacing: -0.01em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.brand-page {
  font-size: 0.72rem;
  color: var(--text-2);
  font-weight: 600;
}

.header-nav {
  margin-left: auto;
  display: none;
  gap: 0.35rem;
}

.header-nav a {
  color: var(--brown);
  text-decoration: none;
  font-weight: 600;
  font-size: 0.88rem;
  padding: 0.4rem 0.7rem;
  border-radius: 999px;
}

.header-nav a:hover {
  background: var(--beige);
  color: var(--orange);
}

@media (min-width: 720px) {
  .header-nav { display: flex; }
}

.theme-toggle {
  flex-shrink: 0;
  width: 2.55rem;
  height: 2.55rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: var(--card);
  color: var(--brown);
  cursor: pointer;
  display: grid;
  place-items: center;
  box-shadow: var(--shadow-sm);
  margin-left: auto;
}

@media (min-width: 720px) {
  .theme-toggle { margin-left: 0; }
}

.theme-toggle:hover {
  border-color: var(--orange-2);
  color: var(--orange);
}

[data-theme="light"] .theme-icon--sun,
[data-theme="dark"] .theme-icon--moon {
  display: none;
}

/* App logo */
.brand-logo,
.footer-logo {
  width: 2.5rem;
  height: 2.5rem;
  object-fit: cover;
  border-radius: 0.7rem;
  flex-shrink: 0;
  box-shadow: var(--shadow-sm);
  border: 1px solid var(--border);
  background: var(--card);
}

.hero-logo {
  width: 5.75rem;
  height: 5.75rem;
  object-fit: cover;
  border-radius: 1.25rem;
  margin: 0 auto 1.25rem;
  display: block;
  box-shadow: var(--shadow), 0 8px 20px rgba(255, 114, 0, 0.22);
  border: 2px solid #fff;
  background: var(--card);
}

[data-theme="dark"] .hero-logo {
  border-color: var(--border);
}

/* Hero */
.hero,
.layout,
.site-footer {
  position: relative;
  z-index: 1;
}

.hero {
  padding: 2.2rem 1.15rem 0.5rem;
  animation: rise 0.55s ease both;
}

.hero-inner {
  max-width: 42rem;
  margin: 0 auto;
  text-align: center;
}

.hero-kicker {
  margin: 0 0 0.35rem;
  color: var(--orange);
  font-weight: 700;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  font-size: 0.78rem;
}

.hero h1 {
  margin: 0 0 0.75rem;
  font-size: clamp(1.9rem, 5vw, 2.7rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
}

.hero-sub {
  margin: 0 auto 1.25rem;
  color: var(--text-2);
  max-width: 38rem;
  font-size: 1.05rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-bottom: 1.15rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 0.32rem 0.75rem;
  border-radius: 999px;
  background: var(--card);
  border: 1px solid var(--border);
  font-size: 0.8rem;
  font-weight: 600;
  color: var(--text-2);
  box-shadow: var(--shadow-sm);
}

.badge--date {
  background: var(--num-bg);
  color: #fff;
  border-color: transparent;
}

.trust-row {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.45rem;
}

.trust-row li {
  background: #eef8f2;
  color: var(--brown);
  border: 1px solid #cdead9;
  border-radius: 999px;
  padding: 0.28rem 0.7rem;
  font-size: 0.78rem;
  font-weight: 700;
}

[data-theme="dark"] .trust-row li {
  background: #1e3328;
  color: #d8f3e4;
  border-color: #2f5a42;
}

/* Layout */
.layout {
  max-width: var(--max);
  margin: 0 auto;
  padding: 1.5rem 1.15rem 3.5rem;
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 980px) {
  .layout {
    grid-template-columns: 16.5rem minmax(0, 1fr);
    align-items: start;
    gap: 1.75rem;
    padding-top: 2rem;
  }
}

.toc-aside {
  scroll-margin-top: calc(var(--header-h) + 0.85rem);
}

.toc {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.1rem 1rem 1.15rem;
  animation: rise 0.55s ease 0.08s both;
}

@media (min-width: 980px) {
  .toc {
    position: sticky;
    top: calc(var(--header-h) + 0.85rem);
  }
}

.toc-title {
  margin: 0 0 0.7rem;
  font-size: 0.82rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--text-2);
}

.toc ol {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 0.15rem;
}

.toc a {
  display: block;
  text-decoration: none;
  color: var(--brown);
  font-weight: 600;
  font-size: 0.9rem;
  padding: 0.42rem 0.65rem;
  border-radius: 0.65rem;
  border-left: 3px solid transparent;
  line-height: 1.35;
}

.toc a:hover {
  background: var(--beige);
  color: var(--orange);
}

.toc a.is-active {
  background: #fff1e3;
  border-left-color: var(--orange);
  color: var(--orange);
}

[data-theme="dark"] .toc a.is-active {
  background: #3a2a20;
}

.toc ol {
  counter-reset: toc;
}

.toc li {
  counter-increment: toc;
}

.toc a::before {
  content: counter(toc, decimal-leading-zero) "  ";
  color: var(--orange);
  font-weight: 800;
  font-variant-numeric: tabular-nums;
  font-size: 0.78em;
}

/* Cards */
.policy {
  display: grid;
  gap: 1.1rem;
}

.card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 1.4rem 1.2rem 1.5rem;
  animation: rise 0.5s ease both;
  scroll-margin-top: calc(var(--header-h) + 0.85rem);
}

@media (hover: hover) and (pointer: fine) {
  .card {
    transition: transform 0.2s ease, box-shadow 0.2s ease;
  }

  .card:hover {
    transform: translateY(-2px);
    box-shadow: 0 14px 32px rgba(59, 40, 31, 0.12);
  }

  [data-theme="dark"] .card:hover {
    box-shadow: 0 14px 32px rgba(0, 0, 0, 0.42);
  }

  .toc a {
    transition: background 0.18s ease, color 0.18s ease, border-color 0.18s ease;
  }

  .theme-toggle {
    transition: color 0.18s ease, border-color 0.18s ease, transform 0.18s ease;
  }

  .theme-toggle:hover {
    transform: translateY(-1px);
  }
}

.card:nth-of-type(1) { animation-delay: 0.1s; }
.card:nth-of-type(2) { animation-delay: 0.14s; }
.card:nth-of-type(3) { animation-delay: 0.18s; }

@media (min-width: 640px) {
  .card { padding: 1.7rem 1.7rem 1.8rem; }
}

.card-head {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 0.85rem;
}

.section-num {
  flex-shrink: 0;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 0.75rem;
  display: grid;
  place-items: center;
  background: var(--num-bg);
  color: #fff;
  font-size: 0.72rem;
  font-weight: 800;
  letter-spacing: 0.04em;
  box-shadow: 0 6px 14px rgba(255, 114, 0, 0.28);
}

.card h2 {
  margin: 0;
  font-size: 1.28rem;
  letter-spacing: -0.02em;
  line-height: 1.25;
}

.card p {
  margin: 0 0 0.9rem;
  color: var(--brown);
}

.card p:last-child {
  margin-bottom: 0;
}

.card code {
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.86em;
  background: var(--beige);
  border: 1px solid var(--border);
  border-radius: 0.4rem;
  padding: 0.08em 0.4em;
}

.app-facts {
  display: grid;
  gap: 0.65rem;
  margin: 1rem 0 0;
}

@media (min-width: 560px) {
  .app-facts {
    grid-template-columns: 1fr 1fr;
  }
}

.app-facts > div {
  background: var(--cream);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 0.7rem 0.85rem;
}

[data-theme="dark"] .app-facts > div {
  background: #241812;
}

.app-facts dt {
  font-size: 0.72rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--text-2);
  font-weight: 700;
}

.app-facts dd {
  margin: 0.15rem 0 0;
  font-weight: 700;
  word-break: break-word;
}

.check-list {
  margin: 0 0 1rem;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.4rem;
}

@media (min-width: 560px) {
  .check-list {
    grid-template-columns: 1fr 1fr;
  }
}

.check-list li {
  position: relative;
  padding: 0.45rem 0.7rem 0.45rem 2.1rem;
  background: var(--cream);
  border: 1px solid var(--border);
  border-radius: 0.75rem;
  font-weight: 600;
  font-size: 0.95rem;
}

[data-theme="dark"] .check-list li {
  background: #241812;
}

.check-list li::before {
  content: "";
  position: absolute;
  left: 0.65rem;
  top: 0.7rem;
  width: 0.72rem;
  height: 0.72rem;
  border-radius: 999px;
  background: var(--green);
  box-shadow: inset 0 0 0 2px var(--green), inset 0 0 0 4px var(--cream);
}

.check-list--none li::before {
  background: transparent;
  box-shadow: inset 0 0 0 2px var(--orange);
}

.callout {
  margin-top: 0.35rem;
  padding: 0.95rem 1rem;
  border-radius: var(--radius-sm);
  background: linear-gradient(180deg, #fff1e3, var(--beige));
  border: 1px solid var(--border);
}

[data-theme="dark"] .callout {
  background: linear-gradient(180deg, #3a2a20, #241812);
}

.callout p {
  margin: 0;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  padding: 2rem 1.15rem 5.5rem;
  text-align: center;
  color: var(--text-2);
  font-size: 0.92rem;
}

.footer-inner {
  max-width: 38rem;
  margin: 0 auto;
}

.site-footer .footer-logo {
  margin: 0 auto 0.85rem;
}

.site-footer p {
  margin: 0 0 0.45rem;
}

.site-footer strong {
  color: var(--brown);
}

.footer-note {
  font-size: 0.82rem;
  margin-top: 0.7rem;
}

/* Back to top */
.back-to-top {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  z-index: 40;
  width: 2.9rem;
  height: 2.9rem;
  border: none;
  border-radius: 999px;
  background: var(--num-bg);
  color: #fff;
  cursor: pointer;
  box-shadow: 0 8px 20px rgba(255, 114, 0, 0.35);
  display: grid;
  place-items: center;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.back-to-top.is-visible {
  opacity: 1;
  pointer-events: auto;
  transform: none;
}

.back-to-top:hover {
  filter: brightness(1.05);
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation: none !important;
    transition: none !important;
  }
}

@media (max-width: 359px) {
  body { font-size: 1rem; }
  .brand-name { font-size: 0.82rem; }
  .card { padding: 1.15rem 0.95rem 1.25rem; }
}

/* Print */
@media print {
  :root {
    --cream: #fff;
    --beige: #fff;
    --card: #fff;
    --brown: #111;
    --text-2: #333;
    --border: #ccc;
    --shadow: none;
    --shadow-sm: none;
  }

  body {
    background: #fff;
    color: #111;
    font-size: 11pt;
  }

  .skip-link,
  .scroll-progress,
  .site-header,
  .page-bg,
  .deco-tile,
  .theme-toggle,
  .header-nav,
  .trust-row,
  .back-to-top,
  .toc-aside {
    display: none !important;
  }

  .hero {
    padding: 0 0 1rem;
    text-align: left;
  }

  .hero-inner { margin: 0; text-align: left; }
  .hero-logo { margin: 0 0 0.75rem; }

  .layout,
  .card {
    display: block;
    padding: 0;
    box-shadow: none;
    border: none;
    background: #fff;
  }

  .card {
    break-inside: avoid;
    margin-bottom: 1.25rem;
    padding-top: 0.5rem;
    border-top: 1px solid #ddd;
  }

  a[href^="#"] { text-decoration: none; color: inherit; }

  .site-footer {
    padding: 1rem 0 0;
    text-align: left;
  }
}