/*
 * SubmitDock public pages (support / privacy)
 * Design system generated with UI UX Pro Max:
 *   Style: Minimalism & Swiss Style (clean, spacious, high contrast, grid-based)
 *   Palette: Authority navy + trust accent; light default with dark mode support
 *   Rules applied: 4.5:1 contrast, 44px touch targets, visible focus,
 *   prefers-reduced-motion, ~65-75ch measure, line-height 1.5-1.75, SVG icons.
 */

:root {
  --color-primary: #1e3a8a;
  --color-primary-hover: #1e40af;
  --color-on-primary: #ffffff;
  --color-accent: #b45309;
  --color-background: #f8fafc;
  --color-foreground: #0f172a;
  --color-card: #ffffff;
  --color-muted: #e9eef5;
  --color-muted-foreground: #475569;
  --color-border: #cbd5e1;
  --color-border-soft: #e2e8f0;
  --color-ring: #1e3a8a;
  --color-link: #1d4ed8;
  --color-code-bg: #f1f5f9;

  --font-sans: -apple-system, BlinkMacSystemFont, "Hiragino Sans", "Hiragino Kaku Gothic ProN", "Noto Sans JP", "Yu Gothic UI", "Segoe UI", sans-serif;
  --font-mono: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

  --space-1: 4px;
  --space-2: 8px;
  --space-3: 12px;
  --space-4: 16px;
  --space-5: 24px;
  --space-6: 32px;
  --space-7: 48px;
  --space-8: 64px;

  --radius-sm: 8px;
  --radius: 12px;
  --radius-lg: 20px;
  --shadow-sm: 0 1px 2px rgba(15, 23, 42, 0.06);
  --shadow: 0 1px 3px rgba(15, 23, 42, 0.06), 0 8px 24px rgba(15, 23, 42, 0.06);

  --measure: 42rem;
  --container: 64rem;
  --ease: cubic-bezier(0.2, 0, 0, 1);

  color-scheme: light dark;
}

@media (prefers-color-scheme: dark) {
  :root {
    --color-primary: #93b4ff;
    --color-primary-hover: #b3caff;
    --color-on-primary: #0b1220;
    --color-accent: #f59e0b;
    --color-background: #0b1220;
    --color-foreground: #e8edf5;
    --color-card: #121a2b;
    --color-muted: #1a2438;
    --color-muted-foreground: #a3b1c6;
    --color-border: #2b3850;
    --color-border-soft: #1f2a3f;
    --color-ring: #93b4ff;
    --color-link: #93b4ff;
    --color-code-bg: #1a2438;
    --shadow-sm: none;
    --shadow: 0 0 0 1px var(--color-border-soft);
  }
}

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

html {
  scroll-behavior: smooth;
  scroll-padding-top: 88px;
  -webkit-text-size-adjust: 100%;
}

body.pd {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: var(--color-background);
  color: var(--color-foreground);
  font-family: var(--font-sans);
  font-size: 1rem;
  line-height: 1.75;
  font-feature-settings: "palt" 0;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
}

main {
  flex: 1;
}

img {
  max-width: 100%;
}

a {
  color: var(--color-link);
  text-underline-offset: 0.2em;
  text-decoration-thickness: 1px;
  transition: color 150ms var(--ease);
}

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

:focus-visible {
  outline: 3px solid var(--color-ring);
  outline-offset: 2px;
  border-radius: 4px;
}

.visually-hidden {
  position: absolute !important;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.pd-skip {
  position: absolute;
  left: var(--space-4);
  top: -100px;
  z-index: 100;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-sm);
  background: var(--color-primary);
  color: var(--color-on-primary);
  font-weight: 700;
}

.pd-skip:focus {
  top: var(--space-3);
  color: var(--color-on-primary);
}

.pd-icon {
  flex: none;
  width: 1.15em;
  height: 1.15em;
}

.pd-container {
  width: min(var(--container), 100% - 2 * var(--space-5));
  margin-inline: auto;
}

.pd-container-narrow {
  width: min(var(--measure), 100% - 2 * var(--space-5));
}

/* ---------- Header ---------- */

.pd-header {
  position: sticky;
  top: 0;
  z-index: 10;
  border-bottom: 1px solid var(--color-border-soft);
  background: color-mix(in srgb, var(--color-background) 86%, transparent);
  -webkit-backdrop-filter: saturate(180%) blur(12px);
  backdrop-filter: saturate(180%) blur(12px);
}

.pd-header-inner {
  width: min(var(--container), 100% - 2 * var(--space-5));
  min-height: 64px;
  margin-inline: auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
}

.pd-brand {
  min-width: 0;
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
  color: inherit;
  text-decoration: none;
}

.pd-brand:hover {
  color: inherit;
}

.pd-brand-icon {
  width: 32px;
  height: 32px;
  flex: none;
  border-radius: 8px;
  object-fit: cover;
  box-shadow: 0 0 0 1px var(--color-border-soft);
}

.pd-brand-fallback,
.pd-app-icon-fallback {
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, var(--color-primary), #3b5bdb);
  color: #fff;
  font-weight: 800;
}

.pd-brand-text {
  min-width: 0;
  display: grid;
  line-height: 1.3;
}

.pd-brand-text strong,
.pd-brand-text small {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.pd-brand-text strong {
  font-size: 0.95rem;
}

.pd-brand-text small {
  color: var(--color-muted-foreground);
  font-size: 0.75rem;
}

.pd-nav {
  display: flex;
  gap: var(--space-1);
  flex: none;
}

.pd-nav a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
  padding: 0 var(--space-3);
  border-radius: var(--radius-sm);
  color: var(--color-muted-foreground);
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: background-color 150ms var(--ease), color 150ms var(--ease);
}

.pd-nav a:hover {
  background: var(--color-muted);
  color: var(--color-foreground);
}

.pd-nav a[aria-current="page"] {
  color: var(--color-primary);
  background: color-mix(in srgb, var(--color-primary) 10%, transparent);
}

/* ---------- Hero ---------- */

.pd-hero {
  padding: var(--space-8) 0 var(--space-6);
}

.pd-hero-inner {
  display: flex;
  align-items: center;
  gap: var(--space-6);
}

.pd-app-icon {
  width: 112px;
  height: 112px;
  flex: none;
  border-radius: 26px;
  object-fit: cover;
  font-size: 3rem;
  box-shadow: 0 0 0 1px var(--color-border-soft), 0 12px 32px rgba(15, 23, 42, 0.12);
}

.pd-hero-copy {
  min-width: 0;
}

.pd-eyebrow {
  margin: 0 0 var(--space-2);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-primary);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.pd h1 {
  margin: 0;
  font-size: clamp(1.9rem, 4.5vw, 2.75rem);
  line-height: 1.25;
  letter-spacing: -0.01em;
  font-weight: 800;
  text-wrap: balance;
  overflow-wrap: anywhere;
}

.pd-byline {
  margin: var(--space-1) 0 0;
  color: var(--color-muted-foreground);
  font-weight: 500;
}

.pd-hero-summary {
  max-width: var(--measure);
  margin: var(--space-4) 0 0;
  color: var(--color-muted-foreground);
  font-size: 1.05rem;
}

.pd-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
  margin-top: var(--space-5);
}

.pd-button {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: 0 var(--space-5);
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 0.95rem;
  font-weight: 700;
  text-decoration: none;
  cursor: pointer;
  transition: background-color 200ms var(--ease), border-color 200ms var(--ease), color 200ms var(--ease), box-shadow 200ms var(--ease);
}

.pd-button-primary {
  background: var(--color-primary);
  color: var(--color-on-primary);
  box-shadow: var(--shadow-sm);
}

.pd-button-primary:hover {
  background: var(--color-primary-hover);
  color: var(--color-on-primary);
}

.pd-button-secondary {
  border-color: var(--color-border);
  background: var(--color-card);
  color: var(--color-foreground);
}

.pd-button-secondary:hover {
  border-color: var(--color-primary);
  color: var(--color-primary);
}

/* Document hero (privacy) */

.pd-hero-doc {
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border-soft);
  background:
    linear-gradient(180deg, color-mix(in srgb, var(--color-primary) 5%, transparent), transparent 80%);
}

.pd-doc-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3) var(--space-6);
  margin: var(--space-5) 0 0;
}

.pd-doc-meta div {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.pd-doc-meta dt {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-muted-foreground);
  font-size: 0.875rem;
}

.pd-doc-meta dt::after {
  content: ":";
}

.pd-doc-meta dd {
  margin: 0;
  font-size: 0.875rem;
  font-weight: 600;
}

/* ---------- Sections ---------- */

.pd-section {
  padding: var(--space-5) 0;
}

.pd-section-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: var(--space-4);
  margin-bottom: var(--space-4);
}

.pd-section-head h2 {
  margin: 0;
  font-size: 1.35rem;
}

.pd-hint {
  margin: 0;
  color: var(--color-muted-foreground);
  font-size: 0.85rem;
}

/* ---------- Gallery ---------- */

.pd-gallery {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: minmax(200px, 240px);
  gap: var(--space-4);
  margin: 0;
  padding: var(--space-2) var(--space-1) var(--space-4);
  list-style: none;
  overflow-x: auto;
  overscroll-behavior-x: contain;
  scroll-snap-type: x mandatory;
  scrollbar-width: thin;
}

.pd-shot {
  scroll-snap-align: start;
}

.pd-shot a {
  display: block;
  border-radius: 28px;
  overflow: hidden;
  background: var(--color-muted);
  box-shadow: 0 0 0 1px var(--color-border-soft), var(--shadow);
  transition: box-shadow 200ms var(--ease);
}

.pd-shot a:hover {
  box-shadow: 0 0 0 2px var(--color-primary), var(--shadow);
}

.pd-shot img {
  display: block;
  width: 100%;
  aspect-ratio: 9 / 19.5;
  object-fit: cover;
  object-position: top;
}

/* ---------- Prose (rendered Markdown) ---------- */

.pd-prose {
  max-width: var(--measure);
  overflow-wrap: anywhere;
}

.pd-prose > :first-child {
  margin-top: 0;
}

.pd-prose > :last-child {
  margin-bottom: 0;
}

.pd-lead {
  font-size: 1.075rem;
}

.pd-prose p,
.pd-prose ul,
.pd-prose ol,
.pd-prose blockquote,
.pd-prose pre,
.pd-prose .md-table {
  margin: 0 0 1.1em;
}

.pd-prose h2,
.pd-prose h3,
.pd-prose h4,
.pd-prose h5,
.pd-prose h6 {
  line-height: 1.4;
  letter-spacing: -0.005em;
  text-wrap: balance;
}

.pd-prose h2 {
  margin: 2.4em 0 0.8em;
  padding-bottom: 0.4em;
  border-bottom: 1px solid var(--color-border-soft);
  font-size: 1.4rem;
}

.pd-prose h3 {
  margin: 1.9em 0 0.6em;
  font-size: 1.15rem;
}

.pd-prose h4,
.pd-prose h5,
.pd-prose h6 {
  margin: 1.6em 0 0.5em;
  font-size: 1rem;
}

.pd-prose ul,
.pd-prose ol {
  padding-left: 1.5em;
}

.pd-prose li {
  margin: 0.35em 0;
}

.pd-prose li > ul,
.pd-prose li > ol {
  margin: 0.35em 0 0;
}

.pd-prose li::marker {
  color: var(--color-muted-foreground);
}

.pd-prose .md-task-item {
  list-style: none;
  margin-left: -1.5em;
  display: flex;
  gap: 0.6em;
  align-items: baseline;
}

.md-task {
  width: 1em;
  height: 1em;
  flex: none;
  position: relative;
  top: 0.15em;
  border: 2px solid var(--color-border);
  border-radius: 4px;
}

.md-task.is-done {
  border-color: var(--color-primary);
  background: var(--color-primary);
  box-shadow: inset 0 0 0 2px var(--color-card);
}

.pd-prose strong {
  font-weight: 700;
}

.pd-prose blockquote {
  padding: var(--space-3) var(--space-4);
  border-left: 4px solid var(--color-primary);
  border-radius: 0 var(--radius-sm) var(--radius-sm) 0;
  background: var(--color-muted);
  color: var(--color-foreground);
}

.pd-prose code {
  padding: 0.15em 0.4em;
  border-radius: 6px;
  background: var(--color-code-bg);
  font-family: var(--font-mono);
  font-size: 0.875em;
}

.pd-prose pre {
  padding: var(--space-4);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-sm);
  background: var(--color-code-bg);
  overflow-x: auto;
  line-height: 1.6;
}

.pd-prose pre code {
  padding: 0;
  background: none;
}

.pd-prose hr {
  margin: 2.4em 0;
  border: 0;
  border-top: 1px solid var(--color-border);
}

.pd-prose img {
  display: block;
  max-height: 560px;
  margin: var(--space-4) 0;
  border-radius: var(--radius);
  box-shadow: 0 0 0 1px var(--color-border-soft);
}

.pd-prose .md-table {
  overflow-x: auto;
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-sm);
}

.pd-prose table {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.925rem;
  line-height: 1.6;
}

.pd-prose th,
.pd-prose td {
  padding: var(--space-3) var(--space-4);
  border-bottom: 1px solid var(--color-border-soft);
  text-align: left;
  vertical-align: top;
}

.pd-prose th {
  background: var(--color-muted);
  font-weight: 700;
  white-space: nowrap;
}

.pd-prose tbody tr:last-child td {
  border-bottom: 0;
}

/* ---------- Document layout (privacy) ---------- */

.pd-doc-layout {
  padding: var(--space-7) 0 var(--space-5);
}

.pd-doc-layout.has-toc {
  display: grid;
  grid-template-columns: 15rem minmax(0, 1fr);
  gap: var(--space-7);
  align-items: start;
}

.pd-doc-aside {
  position: sticky;
  top: 88px;
  max-height: calc(100vh - 112px);
  overflow-y: auto;
}

.pd-toc-title {
  margin: 0 0 var(--space-2);
  display: flex;
  align-items: center;
  gap: var(--space-2);
  color: var(--color-muted-foreground);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.06em;
}

.pd-toc ol {
  margin: 0;
  padding: 0;
  list-style: none;
  border-left: 1px solid var(--color-border);
}

.pd-toc a {
  display: block;
  margin-left: -1px;
  padding: 6px var(--space-3);
  border-left: 2px solid transparent;
  color: var(--color-muted-foreground);
  font-size: 0.875rem;
  line-height: 1.5;
  text-decoration: none;
  transition: color 150ms var(--ease), border-color 150ms var(--ease);
}

.pd-toc a:hover {
  border-left-color: var(--color-primary);
  color: var(--color-foreground);
}

.pd-toc-l3 a {
  padding-left: var(--space-6);
  font-size: 0.825rem;
}

/* ---------- Contact card ---------- */

.pd-contact-card {
  display: flex;
  gap: var(--space-4);
  max-width: var(--measure);
  padding: var(--space-5);
  border: 1px solid var(--color-border-soft);
  border-radius: var(--radius-lg);
  background: var(--color-card);
  box-shadow: var(--shadow);
}

.pd-contact-icon {
  width: 44px;
  height: 44px;
  flex: none;
  display: grid;
  place-items: center;
  border-radius: 12px;
  background: color-mix(in srgb, var(--color-primary) 10%, transparent);
  color: var(--color-primary);
}

.pd-contact-card h2 {
  margin: 0 0 var(--space-1);
  font-size: 1.15rem;
}

.pd-contact-card p {
  margin: 0 0 var(--space-2);
  color: var(--color-muted-foreground);
}

.pd-email {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  font-weight: 700;
  font-size: 1.05rem;
  word-break: break-all;
}

.pd-details {
  margin-top: var(--space-2);
  color: var(--color-muted-foreground);
  font-size: 0.925rem;
}

.pd-details summary {
  min-height: 44px;
  display: flex;
  align-items: center;
  cursor: pointer;
  color: var(--color-foreground);
  font-weight: 600;
}

.pd-details ul {
  margin: 0;
  padding-left: 1.4em;
}

.pd-meta {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--space-2);
  margin: var(--space-5) 0 0;
  color: var(--color-muted-foreground);
  font-size: 0.85rem;
}

.pd-meta a {
  min-height: 44px;
  display: inline-flex;
  align-items: center;
}

/* ---------- Footer ---------- */

.pd-footer {
  margin-top: var(--space-7);
  border-top: 1px solid var(--color-border-soft);
  color: var(--color-muted-foreground);
  font-size: 0.85rem;
}

.pd-footer-inner {
  width: min(var(--container), 100% - 2 * var(--space-5));
  margin-inline: auto;
  padding: var(--space-5) 0 var(--space-6);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-2) var(--space-5);
}

.pd-footer p {
  margin: 0;
}

.pd-footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-1) var(--space-4);
}

.pd-footer a {
  color: inherit;
}

.pd-footer a:hover {
  color: var(--color-foreground);
}

.pd-powered {
  width: 100%;
  font-size: 0.75rem;
  opacity: 0.8;
}

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .pd-doc-layout.has-toc {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }

  .pd-doc-aside {
    position: static;
    max-height: none;
    padding: var(--space-4);
    border: 1px solid var(--color-border-soft);
    border-radius: var(--radius);
    background: var(--color-card);
  }
}

@media (max-width: 640px) {
  .pd-hero {
    padding-top: var(--space-6);
  }

  .pd-hero-inner {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--space-4);
  }

  .pd-app-icon {
    width: 88px;
    height: 88px;
    border-radius: 20px;
    font-size: 2.4rem;
  }

  .pd-actions .pd-button {
    width: 100%;
  }

  .pd-nav a {
    padding: 0 var(--space-2);
    font-size: 0.85rem;
  }

  .pd-brand-text small {
    display: none;
  }

  .pd-contact-card {
    flex-direction: column;
    padding: var(--space-4);
  }

  .pd-gallery {
    grid-auto-columns: 68%;
  }

  .pd-doc-layout {
    padding-top: var(--space-5);
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
    animation-duration: 0.01ms !important;
  }
}

@media print {
  .pd-header,
  .pd-footer,
  .pd-doc-aside,
  .pd-skip,
  .pd-actions {
    display: none !important;
  }

  .pd-doc-layout.has-toc {
    display: block;
  }

  body.pd {
    background: #fff;
    color: #000;
  }
}