:root {
  color-scheme: light;
  font-family: Inter, "Noto Sans JP", "Yu Gothic UI", system-ui, sans-serif;
  color: #17201e;
  background: #f3f5f1;
  font-synthesis: none;
  text-rendering: optimizeLegibility;
  --ink: #17201e;
  --muted: #64706c;
  --paper: #fff;
  --line: rgb(23 32 30 / 13%);
  --accent: #1f6e61;
  --accent-light: #d9f2ea;
  --warm: #efad6c;
  --danger: #8b211d;
  --focus: #1267cf;
  --radius: 1.2rem;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 88% 4%, rgb(239 173 108 / 22%), transparent 28rem),
    radial-gradient(circle at 5% 30%, rgb(76 167 145 / 13%), transparent 24rem),
    linear-gradient(180deg, #fbfcfa, #eef2ed);
}

button,
input,
textarea,
select {
  font: inherit;
}

a {
  color: inherit;
}

.skip-link {
  position: fixed;
  inset: 0 auto auto 0;
  z-index: 20;
  padding: 0.8rem 1rem;
  color: #fff;
  background: var(--ink);
  transform: translateY(-110%);
}

.skip-link:focus {
  transform: translateY(0);
}

.site-header,
footer,
main {
  width: min(76rem, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header,
footer,
.site-header nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.site-header {
  min-height: 4.5rem;
  border-bottom: 1px solid var(--line);
}

.site-header nav,
footer nav {
  display: flex;
  gap: 1rem;
  align-items: center;
}

.site-header nav > a,
.brand {
  font-weight: 820;
  text-decoration: none;
}

.brand {
  letter-spacing: -0.035em;
}

.eyebrow,
.status {
  font-size: 0.71rem;
  font-weight: 850;
  letter-spacing: 0.13em;
  text-transform: uppercase;
}

.nav-cta {
  min-height: 2.5rem;
  padding: 0.2rem 0.85rem;
  color: #fff;
  background: var(--ink);
  border-radius: 0.65rem;
}

.hero {
  display: grid;
  min-height: min(42rem, calc(100vh - 4.5rem));
  padding-block: clamp(3rem, 8vw, 6rem);
  grid-template-columns: minmax(0, 0.9fr) minmax(25rem, 1.1fr);
  gap: clamp(2.5rem, 7vw, 7rem);
  align-items: center;
}

.eyebrow {
  margin: 0 0 1rem;
  color: var(--accent);
}

h1,
h2,
h3 {
  margin-top: 0;
  line-height: 1.1;
  letter-spacing: -0.045em;
}

h1 {
  max-width: 42rem;
  margin-bottom: 0;
  font-size: clamp(2.25rem, 4.5vw, 4.5rem);
}

h2 {
  font-size: clamp(1.4rem, 2.5vw, 2.4rem);
}

p {
  max-width: 50rem;
}

.lead {
  margin-block: 1.75rem 0;
  font-size: clamp(1.05rem, 2vw, 1.35rem);
  line-height: 1.85;
  color: #4e5b57;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  margin-top: 2rem;
}

.album-preview {
  position: relative;
  min-height: 31rem;
  padding: clamp(1rem, 3vw, 2rem);
  border: 1px solid rgb(23 32 30 / 9%);
  border-radius: 2rem;
  background:
    linear-gradient(145deg, rgb(255 255 255 / 85%), rgb(224 241 233 / 82%)), var(--accent-light);
  box-shadow: 0 2.5rem 6rem rgb(34 67 57 / 13%);
}

.preview-window {
  position: absolute;
  inset: 2.25rem 1.5rem 2.75rem 3.25rem;
  padding: 1rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 1.25rem;
  box-shadow: 0 1.5rem 3.5rem rgb(23 32 30 / 12%);
}

.preview-bar,
.preview-download,
.qr-card,
.passphrase-card {
  display: flex;
  align-items: center;
}

.preview-bar {
  min-height: 2.5rem;
  gap: 0.65rem;
  font-size: 0.85rem;
  font-weight: 800;
}

.preview-mark {
  width: 0.75rem;
  height: 0.75rem;
  background: var(--accent);
  border-radius: 50%;
}

.photo-count {
  margin-left: auto;
  color: var(--muted);
  font-size: 0.75rem;
  font-weight: 700;
}

.photo-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  grid-template-rows: repeat(2, 7rem);
  gap: 0.5rem;
  margin-block: 0.65rem 1rem;
}

.photo-grid span {
  border-radius: 0.65rem;
  background:
    radial-gradient(circle at 68% 25%, #fff2c6 0 8%, transparent 9%),
    linear-gradient(150deg, #78a6a0 0 45%, #294a45 46% 100%);
}

.photo-grid span:nth-child(2),
.photo-grid span:nth-child(5) {
  background:
    radial-gradient(circle at 34% 30%, #ffd19b 0 11%, transparent 12%),
    linear-gradient(150deg, #e39c61 0 42%, #805b46 43% 100%);
}

.photo-grid span:nth-child(3),
.photo-grid span:nth-child(4) {
  background:
    linear-gradient(45deg, transparent 44%, rgb(255 255 255 / 30%) 45% 50%, transparent 51%),
    linear-gradient(150deg, #bfd7a7, #517454);
}

.preview-download {
  min-height: 3.6rem;
  padding: 0.7rem 0.75rem;
  justify-content: space-between;
  background: #f3f6f2;
  border-radius: 0.75rem;
}

.preview-download > span:first-child {
  display: grid;
  gap: 0.15rem;
}

.preview-download strong,
.preview-download small {
  font-size: 0.75rem;
}

.preview-download small,
.qr-card small {
  color: var(--muted);
}

.download-pill {
  padding: 0.45rem 0.65rem;
  color: #fff;
  background: var(--ink);
  border-radius: 0.55rem;
  font-size: 0.72rem;
  font-weight: 850;
}

.qr-card {
  position: absolute;
  right: -1rem;
  bottom: 1.25rem;
  padding: 0.75rem;
  gap: 0.65rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 0.9rem;
  box-shadow: 0 1rem 2.5rem rgb(23 32 30 / 17%);
}

.qr-card > span:last-child {
  display: grid;
  gap: 0.1rem;
  font-size: 0.75rem;
}

.qr-pattern {
  width: 3.25rem;
  height: 3.25rem;
  background: repeating-conic-gradient(#17201e 0 25%, #fff 0 50%) 0 0 / 0.75rem 0.75rem;
  border: 0.35rem solid #fff;
  outline: 1px solid var(--line);
}

.passphrase-card {
  position: absolute;
  top: 1rem;
  left: 0.75rem;
  padding: 0.65rem 0.85rem;
  gap: 0.55rem;
  background: #ffead3;
  border: 1px solid rgb(117 66 27 / 15%);
  border-radius: 0.75rem;
  box-shadow: 0 0.75rem 2rem rgb(117 66 27 / 13%);
  transform: rotate(-2deg);
}

.passphrase-card span {
  color: #75421b;
  font-size: 0.65rem;
  font-weight: 800;
}

.passphrase-card strong {
  font-size: 0.8rem;
}

.relay-flow {
  display: grid;
  grid-template-columns: 1fr auto 1fr auto 1fr;
  gap: clamp(1rem, 3vw, 2.25rem);
  margin-block: 1rem 6rem;
  align-items: center;
}

.relay-flow article {
  display: flex;
  min-height: 7rem;
  padding: 1.25rem;
  gap: 1rem;
  align-items: center;
  background: rgb(255 255 255 / 62%);
  border: 1px solid var(--line);
  border-radius: 1rem;
}

.relay-flow article > span {
  display: grid;
  width: 2rem;
  height: 2rem;
  flex: 0 0 auto;
  place-items: center;
  color: #fff;
  background: var(--accent);
  border-radius: 50%;
  font-size: 0.75rem;
  font-weight: 850;
}

.relay-flow h2 {
  margin-bottom: 0.25rem;
  font-size: 1rem;
  letter-spacing: -0.02em;
}

.relay-flow p {
  margin: 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.5;
}

.flow-arrow {
  color: var(--muted);
}

.button {
  display: inline-flex;
  min-height: 3rem;
  padding: 0.2rem 1.15rem;
  align-items: center;
  justify-content: center;
  font-weight: 800;
  border: 1px solid var(--ink);
  border-radius: 0.7rem;
  cursor: pointer;
  text-decoration: none;
}

.button:disabled {
  cursor: wait;
  opacity: 0.58;
}

.primary {
  color: #fff;
  background: var(--ink);
}

.secondary {
  color: var(--ink);
  background: rgb(255 255 255 / 72%);
}

.danger {
  color: #fff;
  background: var(--danger);
  border-color: var(--danger);
}

button:focus-visible,
a:focus-visible,
input:focus-visible,
textarea:focus-visible,
select:focus-visible,
summary:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
}

.feature-grid,
.editor-grid {
  display: grid;
  gap: 1rem;
}

.feature-grid {
  grid-template-columns: repeat(3, 1fr);
  margin-bottom: 6rem;
}

.feature-grid article,
.panel,
.auth-card,
.empty-state,
.album-card,
.settings-card,
.share-panel,
.upload-panel,
.contribution-panel,
.prose,
.unlock-card {
  background: rgb(255 255 255 / 86%);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 1.5rem 4rem rgb(38 55 49 / 6%);
}

.feature-grid article {
  min-height: 15rem;
  padding: 1.5rem;
}

.feature-grid article > span {
  display: inline-grid;
  width: 2.6rem;
  height: 2.6rem;
  margin-bottom: 2.5rem;
  place-items: center;
  font-weight: 850;
  color: #75421b;
  background: #ffe5c8;
  border-radius: 50%;
}

.feature-grid h2 {
  font-size: 1.35rem;
}

.feature-grid p,
.form-help,
small {
  line-height: 1.75;
  color: var(--muted);
}

.panel,
.prose {
  margin-bottom: 6rem;
  padding: clamp(1.5rem, 5vw, 4rem);
}

.metrics {
  display: grid;
  grid-template-columns: 1fr 0.8fr 2fr;
  gap: 1rem;
  margin: 3rem 0 0;
}

.metrics div {
  padding-top: 1rem;
  border-top: 2px solid var(--ink);
}

.metrics dt {
  margin-bottom: 0.75rem;
  color: var(--muted);
}

.metrics dd {
  margin: 0;
  font-weight: 750;
  line-height: 1.65;
}

.auth-card,
.unlock-card {
  width: min(36rem, 100%);
  margin: clamp(4rem, 10vw, 8rem) auto;
  padding: clamp(1.5rem, 5vw, 3rem);
}

.auth-card h1,
.unlock-card h1,
.dashboard-head h1,
.gallery-head h1 {
  font-size: clamp(2rem, 4vw, 3.6rem);
}

.auth-card > p,
.unlock-card > p {
  line-height: 1.75;
  color: var(--muted);
}

.stack {
  display: grid;
  gap: 1rem;
}

.stack label {
  font-weight: 750;
}

input,
textarea,
select {
  width: 100%;
  margin-top: 0.4rem;
  padding: 0.8rem 0.9rem;
  color: var(--ink);
  background: #fff;
  border: 1px solid rgb(23 32 30 / 29%);
  border-radius: 0.65rem;
}

textarea {
  line-height: 1.65;
  resize: vertical;
}

small,
.form-help {
  margin: 0;
  font-size: 0.82rem;
  font-weight: 500;
}

.notice {
  max-width: none;
  padding: 1rem;
  line-height: 1.6;
  border: 1px solid;
  border-radius: 0.75rem;
}

.notice.error,
.error-text {
  color: #7b251b;
}

.notice.error {
  background: #fff0ec;
  border-color: #efb1a4;
}

.notice.success {
  color: #16543c;
  background: #e9faf2;
  border-color: #a7ddc6;
}

.hidden {
  display: none !important;
}

.dashboard-head,
.gallery-head {
  display: flex;
  padding-block: clamp(3rem, 8vw, 6rem) 2rem;
  gap: 2rem;
  align-items: flex-end;
  justify-content: space-between;
}

.dashboard-head.compact {
  padding-bottom: 1.5rem;
}

.dashboard-head .actions {
  margin: 0;
}

.album-list {
  display: grid;
  gap: 0.8rem;
  margin-bottom: 4rem;
}

.album-card {
  display: grid;
  grid-template-columns: 1.5fr 1fr auto;
  padding: 1.25rem;
  gap: 1.5rem;
  align-items: center;
}

.album-card h2 {
  margin: 0.55rem 0 0.3rem;
  font-size: 1.5rem;
}

.album-card p {
  margin: 0;
  color: var(--muted);
}

.status {
  display: inline-flex;
  padding: 0.3rem 0.55rem;
  border-radius: 999px;
}

.status.active {
  color: #155042;
  background: var(--accent-light);
}

.status.paused {
  color: #6c4b25;
  background: #f8e8cf;
}

.compact-metrics,
.summary-grid {
  display: grid;
  margin: 0;
  gap: 0.5rem;
}

.compact-metrics {
  grid-template-columns: repeat(4, 1fr);
}

.compact-metrics div,
.summary-grid div {
  padding: 0.8rem;
  text-align: center;
  background: #f3f6f2;
  border-radius: 0.7rem;
}

.compact-metrics dt,
.summary-grid dt {
  font-size: 0.75rem;
  color: var(--muted);
}

.compact-metrics dd,
.summary-grid dd {
  margin: 0.2rem 0 0;
  font-size: 1.4rem;
  font-weight: 850;
}

.empty-state {
  margin-bottom: 5rem;
  padding: clamp(2rem, 6vw, 4rem);
  text-align: center;
}

.empty-state h2,
.empty-state p {
  margin-inline: auto;
}

.editor-grid {
  grid-template-columns: minmax(19rem, 0.72fr) minmax(0, 1.5fr);
  align-items: start;
  margin-bottom: 6rem;
}

.settings-card {
  position: sticky;
  top: 1rem;
  padding: 1.4rem;
}

.input-prefix {
  display: flex;
  margin-top: 0.4rem;
  align-items: center;
  background: #fff;
  border: 1px solid rgb(23 32 30 / 29%);
  border-radius: 0.65rem;
  overflow: hidden;
}

.input-prefix > span {
  padding-left: 0.9rem;
  color: var(--muted);
}

.input-prefix input {
  margin: 0;
  padding-left: 0.2rem;
  border: 0;
}

.check-row {
  display: flex;
  gap: 0.6rem;
  align-items: center;
}

.check-row input {
  width: 1.1rem;
  height: 1.1rem;
  margin: 0;
  accent-color: var(--accent);
}

.editor-main {
  display: grid;
  min-width: 0;
  gap: 1rem;
}

.share-panel {
  display: grid;
  grid-template-columns: 1fr auto;
  padding: 1.4rem;
  gap: 1.5rem;
  align-items: center;
}

.share-panel h2 {
  font-size: 1.7rem;
}

.share-panel a {
  overflow-wrap: anywhere;
}

.share-panel p {
  color: var(--muted);
}

.qr {
  display: block;
  width: 9rem;
  height: 9rem;
  padding: 0.4rem;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 0.7rem;
}

.summary-grid {
  grid-template-columns: repeat(4, 1fr);
}

.upload-panel,
.contribution-panel {
  padding: 1.4rem;
}

progress {
  width: 100%;
  height: 0.7rem;
  accent-color: var(--accent);
}

.upload-status {
  margin: 0;
  font-size: 0.9rem;
  color: var(--muted);
}

.section-heading {
  display: flex;
  margin-block: 2rem 1rem;
  align-items: flex-end;
  justify-content: space-between;
}

.section-heading h2,
.section-heading .eyebrow {
  margin-bottom: 0;
}

.photo-grid {
  display: grid;
  gap: 0.65rem;
}

.owner-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.photo-card,
.gallery-grid figure {
  margin: 0;
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 0.8rem;
  overflow: hidden;
}

.photo-card img,
.gallery-grid img {
  display: block;
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
  background: #e6ebe7;
}

.photo-card > div {
  padding: 0.65rem;
}

.photo-card p {
  margin: 0 0 0.5rem;
  font-size: 0.78rem;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.text-button {
  padding: 0;
  color: var(--muted);
  background: none;
  border: 0;
  cursor: pointer;
  text-decoration: underline;
}

.danger-text {
  color: var(--danger);
}

.danger-zone {
  margin-top: 1rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.danger-zone summary {
  font-weight: 750;
  color: var(--danger);
  cursor: pointer;
}

.danger-zone p {
  line-height: 1.65;
  color: var(--muted);
}

.account-danger {
  max-width: 32rem;
  margin: 0 0 6rem auto;
}

.gallery-head {
  align-items: flex-start;
}

.gallery-head .lead {
  max-width: 48rem;
}

.contribution-panel {
  margin-bottom: 1rem;
}

.contribution-panel summary {
  font-weight: 800;
  cursor: pointer;
}

.contribution-panel form {
  margin-top: 1.2rem;
}

.gallery-grid {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-bottom: 2rem;
}

.gallery-grid figure {
  position: relative;
}

.gallery-grid figcaption {
  position: absolute;
  right: 0.5rem;
  bottom: 0.5rem;
}

.gallery-grid figcaption a {
  display: inline-flex;
  padding: 0.4rem 0.6rem;
  font-size: 0.78rem;
  font-weight: 800;
  color: #fff;
  background: rgb(23 32 30 / 82%);
  border-radius: 0.5rem;
  text-decoration: none;
}

.expiry-note {
  max-width: none;
  margin-block: 2rem 5rem;
  padding: 1rem;
  text-align: center;
  color: var(--muted);
  background: #e9eee9;
  border-radius: 0.7rem;
}

.preserve-lines {
  white-space: pre-wrap;
}

.prose {
  margin-top: 5rem;
}

.prose h1 {
  margin-bottom: 3rem;
  font-size: clamp(2rem, 4vw, 3.6rem);
}

.prose h2 {
  margin-top: 2.5rem;
  font-size: 1.5rem;
}

.prose p {
  font-size: 1.05rem;
  line-height: 1.9;
}

footer {
  min-height: 6rem;
  color: var(--muted);
  border-top: 1px solid var(--line);
}

@media (max-width: 54rem) {
  .hero {
    min-height: auto;
    grid-template-columns: 1fr;
  }

  .hero-copy {
    max-width: 39rem;
  }

  .album-preview {
    width: min(40rem, 100%);
    margin-inline: auto;
  }

  .feature-grid,
  .editor-grid {
    grid-template-columns: 1fr;
  }

  .metrics,
  .album-card {
    grid-template-columns: 1fr;
  }

  .settings-card {
    position: static;
  }

  .owner-grid,
  .gallery-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 40rem) {
  .site-header nav > a:first-child {
    display: none;
  }

  .album-preview {
    min-height: 25rem;
    padding: 0.75rem;
    border-radius: 1.25rem;
  }

  .preview-window {
    inset: 2rem 0.75rem 2.5rem 1.5rem;
  }

  .photo-grid {
    grid-template-rows: repeat(2, 5rem);
  }

  .qr-card {
    right: -0.25rem;
  }

  .relay-flow {
    grid-template-columns: 1fr;
  }

  .flow-arrow {
    display: none;
  }

  .dashboard-head,
  .gallery-head,
  footer {
    padding-block: 1.5rem;
    align-items: flex-start;
    flex-direction: column;
    gap: 1rem;
  }

  .share-panel {
    grid-template-columns: 1fr;
  }

  .summary-grid,
  .compact-metrics,
  .owner-grid,
  .gallery-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

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

  *,
  *::before,
  *::after {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}