:root {
  color-scheme: dark;
  --bg: #0d0e0b;
  --bg-soft: #12140f;
  --panel: #151812;
  --panel-raised: #1a1e16;
  --ink: #f1efe4;
  --muted: #9a9d8e;
  --muted-strong: #c3c6b6;
  --line: #2b2f25;
  --line-strong: #414735;
  --accent: #d8ff57;
  --accent-soft: rgba(216, 255, 87, 0.12);
  --accent-ink: #11150a;
  --danger: #ff9276;
  --danger-soft: rgba(255, 146, 118, 0.1);
  --ok: #b8f36b;
  --radius: 20px;
  --radius-sm: 12px;
  --sans: "Segoe UI", system-ui, -apple-system, "Helvetica Neue", Arial, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", "Book Antiqua", Georgia, serif;
  --mono: "Cascadia Code", "SFMono-Regular", Consolas, "Liberation Mono", monospace;
}

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

[hidden] {
  display: none !important;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background:
    radial-gradient(circle at 82% -8%, rgba(216, 255, 87, 0.09), transparent 34rem),
    radial-gradient(circle at 4% 38%, rgba(216, 255, 87, 0.04), transparent 28rem),
    var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image: radial-gradient(rgba(241, 239, 228, 0.055) 1px, transparent 1px);
  background-size: 30px 30px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
}

a {
  color: inherit;
}

button,
input {
  font: inherit;
}

button {
  cursor: pointer;
}

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

.skip-link {
  position: absolute;
  left: 16px;
  top: -80px;
  z-index: 20;
  padding: 10px 16px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-ink);
  font-weight: 700;
  text-decoration: none;
}

.skip-link:focus {
  top: 16px;
}

.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;
}

.topbar {
  position: relative;
  z-index: 2;
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 30px 28px 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
}

.brand-badge {
  display: inline-grid;
  place-items: center;
  width: 34px;
  height: 34px;
  border-radius: 9px;
  background: var(--accent);
  color: var(--accent-ink);
  font-family: var(--mono);
  font-size: 13px;
  font-weight: 700;
  letter-spacing: -0.04em;
}

.brand-word {
  font-size: 17px;
  font-weight: 800;
  letter-spacing: 0.18em;
}

.topbar-side {
  display: flex;
  align-items: center;
  gap: 14px;
}

.mode-pill {
  display: inline-flex;
  align-items: center;
  gap: 7px;
  padding: 6px 11px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: rgba(21, 24, 18, 0.72);
  color: var(--muted-strong);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  white-space: nowrap;
}

.mode-pill::before {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 12px rgba(216, 255, 87, 0.7);
}

.topbar-note {
  color: var(--muted);
  font-size: 13px;
}

.logout-button {
  padding: 6px 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
  text-decoration: underline;
  text-underline-offset: 4px;
  white-space: nowrap;
}

.logout-button:hover {
  color: var(--accent);
}

.logout-button:disabled {
  cursor: not-allowed;
  opacity: 0.4;
}

.logout-button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

.auth-main {
  flex: 1;
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 36px 28px 88px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.auth-card {
  width: min(600px, 100%);
  padding: 40px;
}

.auth-title {
  margin: 0;
  font-size: clamp(46px, 7.5vw, 78px);
  font-weight: 800;
  letter-spacing: -0.055em;
  line-height: 0.94;
}

.auth-card .lede {
  margin-top: 20px;
  font-size: 15px;
}

.auth-form {
  display: grid;
  gap: 10px;
  margin-top: 30px;
}

.auth-form label {
  color: var(--muted-strong);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.auth-input {
  width: 100%;
  height: 56px;
  padding: 0 18px;
  border: 1px solid var(--line-strong);
  border-radius: 14px;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 18px;
  letter-spacing: 0.08em;
}

.auth-input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.auth-form .button {
  width: 100%;
  margin-top: 8px;
}

.auth-card .status {
  min-height: 22px;
  margin-top: 16px;
}

.auth-card .fineprint {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

main {
  position: relative;
  z-index: 1;
  flex: 1;
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 0 28px 72px;
}

.view {
  animation: rise 420ms ease both;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.hero {
  max-width: 880px;
  padding: 58px 0 46px;
}

.eyebrow {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 0 0 18px;
  color: var(--accent);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.eyebrow-rule {
  width: 34px;
  height: 1px;
  background: currentColor;
  opacity: 0.7;
}

.hero h1,
.share-header h1 {
  margin: 0;
  font-family: var(--sans);
  font-size: clamp(52px, 9.4vw, 112px);
  font-weight: 800;
  letter-spacing: -0.055em;
  line-height: 0.92;
}

.serif {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 500;
  letter-spacing: -0.025em;
  color: var(--accent);
}

.lede {
  max-width: 620px;
  margin: 26px 0 0;
  color: var(--muted-strong);
  font-size: 17px;
  line-height: 1.65;
}

.lede strong {
  color: var(--ink);
  font-weight: 600;
}

.grid {
  display: grid;
  grid-template-columns: minmax(0, 1.55fr) minmax(280px, 1fr);
  gap: 18px;
  align-items: start;
}

.panel {
  position: relative;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(150deg, rgba(255, 255, 255, 0.025), transparent 46%),
    var(--panel);
  box-shadow: 0 26px 60px rgba(0, 0, 0, 0.22);
}

.upload-panel,
.detail-panel,
.files-panel,
.side-panel,
.result-panel,
.error-panel {
  padding: 26px;
}

.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 16px;
  margin-bottom: 20px;
}

.panel-head h2 {
  margin: 0;
  font-size: 13px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.panel-index {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.12em;
}

.dropzone {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  min-height: 252px;
  padding: 32px 24px;
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius-sm);
  background:
    linear-gradient(180deg, rgba(216, 255, 87, 0.025), transparent),
    var(--bg-soft);
  text-align: center;
  transition: border-color 160ms ease, background 160ms ease, transform 160ms ease;
}

.dropzone:hover,
.dropzone:focus-visible,
.dropzone.is-dragging {
  border-color: var(--accent);
  background:
    linear-gradient(180deg, rgba(216, 255, 87, 0.08), transparent),
    var(--bg-soft);
}

.dropzone.is-dragging {
  transform: scale(0.995);
}

.dropzone:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.drop-icon {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  margin-bottom: 18px;
  border: 1px solid var(--line-strong);
  border-radius: 50%;
  color: var(--accent);
  font-family: var(--serif);
  font-size: 32px;
  font-weight: 400;
  line-height: 1;
  transition: transform 200ms ease, background 200ms ease;
}

.dropzone:hover .drop-icon,
.dropzone.is-dragging .drop-icon {
  transform: rotate(90deg);
  background: var(--accent-soft);
}

.drop-title {
  font-family: var(--serif);
  font-size: 26px;
  font-style: italic;
}

.drop-sub {
  margin-top: 8px;
  color: var(--muted);
  font-size: 13px;
}

.drop-sub b {
  color: var(--muted-strong);
  font-weight: 600;
}

.selection {
  display: grid;
  gap: 8px;
  margin: 16px 0 0;
  padding: 0;
  list-style: none;
}

.sel-item {
  display: flex;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 12px;
  background: rgba(0, 0, 0, 0.16);
}

.file-badge {
  flex: none;
  display: inline-grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border: 1px solid var(--line-strong);
  border-radius: 10px;
  background: var(--panel-raised);
  color: var(--muted-strong);
  font-family: var(--mono);
  font-size: 10px;
  font-weight: 700;
  letter-spacing: 0.04em;
}

.sel-meta {
  min-width: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.sel-name,
.file-name {
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-weight: 600;
}

.sel-size {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
}

.icon-button {
  flex: none;
  padding: 7px 10px;
  border: 1px solid transparent;
  border-radius: 8px;
  background: transparent;
  color: var(--muted);
  font-size: 12px;
}

.icon-button:hover {
  border-color: var(--line-strong);
  color: var(--ink);
}

.upload-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-top: 18px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 48px;
  padding: 0 20px;
  border: 1px solid transparent;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-decoration: none;
  transition: transform 150ms ease, background 150ms ease, border-color 150ms ease, opacity 150ms ease;
}

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

.button:active {
  transform: translateY(0);
}

.button:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.button:disabled,
.button.is-disabled {
  cursor: not-allowed;
  opacity: 0.42;
  transform: none;
}

.button-primary {
  background: var(--accent);
  color: var(--accent-ink);
}

.button-primary:hover:not(:disabled) {
  background: #e4ff7f;
}

.button-ghost {
  border-color: var(--line-strong);
  background: transparent;
  color: var(--ink);
}

.button-ghost:hover {
  border-color: var(--muted);
}

.button-arrow {
  font-family: var(--mono);
  font-size: 16px;
}

.status {
  min-height: 22px;
  margin: 14px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.status.is-error {
  color: var(--danger);
}

.status.is-ok {
  color: var(--ok);
}

.progress-list {
  display: grid;
  gap: 12px;
  margin: 16px 0 0;
  padding: 16px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.progress-item {
  display: grid;
  gap: 7px;
}

.progress-head {
  display: flex;
  justify-content: space-between;
  gap: 14px;
  font-size: 12px;
}

.progress-name {
  min-width: 0;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  color: var(--muted-strong);
}

.progress-pct {
  flex: none;
  color: var(--accent);
  font-family: var(--mono);
}

.progress-item progress {
  display: block;
  width: 100%;
  height: 6px;
  border: 0;
  border-radius: 999px;
  overflow: hidden;
  background: var(--line);
  appearance: none;
}

.progress-item progress::-webkit-progress-bar {
  background: var(--line);
}

.progress-item progress::-webkit-progress-value {
  background: var(--accent);
  border-radius: 999px;
}

.progress-item progress::-moz-progress-bar {
  background: var(--accent);
  border-radius: 999px;
}

.progress-state {
  margin: 0;
  color: var(--muted);
  font-size: 11px;
}

.progress-item.is-error .progress-pct {
  color: var(--danger);
}

.progress-item.is-error .progress-state {
  color: var(--danger);
}

.spec-list {
  display: grid;
  gap: 0;
  margin: 0;
}

.spec-list > div {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 14px;
  padding: 12px 0;
  border-bottom: 1px solid var(--line);
}

.spec-list > div:first-child {
  padding-top: 0;
}

.spec-list > div:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.spec-list dt {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.spec-list dd {
  margin: 0;
  color: var(--ink);
  font-family: var(--mono);
  font-size: 12px;
  text-align: right;
}

.note-list {
  display: grid;
  gap: 10px;
  margin: 22px 0 0;
  padding: 20px 0 0;
  border-top: 1px solid var(--line);
  list-style: none;
}

.note-list li {
  position: relative;
  padding-left: 16px;
  color: var(--muted-strong);
  font-size: 13px;
  line-height: 1.5;
}

.note-list li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 8px;
  width: 5px;
  height: 5px;
  border-radius: 50%;
  background: var(--accent);
}

.fineprint {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.6;
}

.result-panel {
  margin-top: 18px;
  border-color: rgba(216, 255, 87, 0.32);
  background:
    linear-gradient(135deg, rgba(216, 255, 87, 0.07), transparent 58%),
    var(--panel);
}

.result-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 20px;
}

.result-head .eyebrow {
  margin-bottom: 8px;
}

.result-head h2 {
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(34px, 5vw, 52px);
  font-weight: 500;
  font-style: italic;
  letter-spacing: -0.03em;
}

.result-check {
  flex: none;
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--accent-ink);
  font-size: 20px;
  font-weight: 800;
}

.copy-row {
  display: flex;
  gap: 10px;
  margin-top: 24px;
}

.link-input {
  min-width: 0;
  flex: 1;
  height: 48px;
  padding: 0 16px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--mono);
  font-size: 13px;
}

.link-input:focus {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

.result-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  margin-top: 14px;
}

.result-meta p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
}

.text-link,
.back-link {
  color: var(--accent);
  font-size: 13px;
  font-weight: 600;
  text-decoration: none;
}

.text-link:hover,
.back-link:hover {
  text-decoration: underline;
  text-underline-offset: 4px;
}

#new-upload {
  margin-top: 22px;
}

.share-top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 28px 0 0;
}

.share-loading {
  padding: 90px 0;
  color: var(--muted);
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.share-header {
  max-width: 900px;
  padding: 54px 0 40px;
}

.share-header .eyebrow span {
  color: var(--muted-strong);
}

.share-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.65fr) minmax(280px, 1fr);
  gap: 18px;
  align-items: start;
}

.file-list {
  display: grid;
  gap: 2px;
  margin: 0;
  padding: 0;
  list-style: none;
}

.file-row {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 14px 0;
  border-top: 1px solid var(--line);
}

.file-row:first-child {
  padding-top: 0;
  border-top: 0;
}

.file-row:last-child {
  padding-bottom: 0;
}

.file-main {
  min-width: 0;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.file-sub {
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
}

.file-actions {
  flex: none;
  display: flex;
  align-items: center;
  gap: 8px;
}

.file-action {
  display: inline-flex;
  align-items: center;
  min-height: 36px;
  padding: 0 13px;
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  color: var(--ink);
  font-size: 12px;
  font-weight: 600;
  text-decoration: none;
}

.file-action:hover {
  border-color: var(--accent);
  color: var(--accent);
}

.file-action-quiet {
  border-color: transparent;
  color: var(--muted);
}

.side-panel .button {
  width: 100%;
  margin-top: 18px;
}

.side-panel .button + .button {
  margin-top: 8px;
}

.share-footnote {
  margin: 22px 0 0;
  color: var(--muted);
  font-size: 12px;
}

.error-panel {
  margin-top: 48px;
  border-color: rgba(255, 146, 118, 0.3);
  background:
    linear-gradient(140deg, var(--danger-soft), transparent 60%),
    var(--panel);
}

.error-title {
  max-width: 700px;
  margin: 0;
  font-family: var(--serif);
  font-size: clamp(34px, 6vw, 60px);
  font-weight: 500;
  font-style: italic;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.error-message {
  max-width: 560px;
  margin: 16px 0 26px;
  color: var(--muted-strong);
}

.footer {
  position: relative;
  z-index: 1;
  width: min(1180px, 100%);
  margin: 0 auto;
  padding: 24px 28px 34px;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 10px;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.copy-helper {
  position: fixed;
  left: -9999px;
  top: 0;
  width: 1px;
  height: 1px;
  opacity: 0;
}

.noscript {
  position: fixed;
  inset: auto 16px 16px;
  z-index: 30;
  padding: 14px 18px;
  border: 1px solid var(--danger);
  border-radius: 12px;
  background: var(--bg);
  color: var(--danger);
  font-size: 13px;
  text-align: center;
}

@media (max-width: 900px) {
  .grid,
  .share-layout {
    grid-template-columns: minmax(0, 1fr);
  }

  .detail-panel {
    order: 2;
  }

  .topbar-note {
    display: none;
  }

  .hero {
    padding-top: 42px;
  }

  .auth-main {
    align-items: flex-start;
  }
}

@media (max-width: 620px) {
  .topbar,
  main,
  .footer {
    padding-left: 18px;
    padding-right: 18px;
  }

  .topbar {
    padding-top: 20px;
  }

  .topbar-side {
    gap: 10px;
  }

  .brand-word {
    font-size: 15px;
  }

  .auth-main {
    padding: 20px 18px 56px;
  }

  .auth-card {
    padding: 24px;
  }

  .auth-title {
    font-size: clamp(42px, 14vw, 64px);
  }

  .hero {
    padding: 34px 0 30px;
  }

  .hero h1,
  .share-header h1 {
    font-size: clamp(44px, 15vw, 72px);
  }

  .lede {
    font-size: 15px;
  }

  .upload-panel,
  .detail-panel,
  .files-panel,
  .side-panel,
  .result-panel,
  .error-panel {
    padding: 20px;
  }

  .dropzone {
    min-height: 210px;
  }

  .drop-title {
    font-size: 23px;
  }

  .copy-row {
    flex-direction: column;
  }

  .copy-row .button {
    width: 100%;
  }

  .result-meta {
    align-items: flex-start;
    flex-direction: column;
  }

  .file-row {
    align-items: flex-start;
  }

  .file-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .file-action {
    justify-content: center;
  }

  .share-header {
    padding: 38px 0 30px;
  }

  .footer {
    padding-bottom: 24px;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}