:root {
  --bg: #ffffff;
  --ink: #111111;
  --muted: #777777;
  --line: #111111;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  height: 100%;
  background: var(--bg);
  color: var(--ink);
  font-family: "Inter", "Helvetica Neue", Helvetica, Arial, sans-serif;
}

body.archive-confirm-active {
  overflow: hidden;
  touch-action: none;
  overscroll-behavior: none;
}

.app-shell {
  min-height: 100vh;
  min-height: 100svh;
  min-height: 100dvh;
  display: grid;
  grid-template-rows: auto 1fr auto;
  filter: blur(0);
  transition: filter 0.36s cubic-bezier(0.22, 1, 0.36, 1);
  will-change: filter;
  contain: paint;
  backface-visibility: hidden;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

body.about-active .app-shell {
  filter: blur(4px);
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  border-bottom: 1px solid var(--line);
}

.logo {
  letter-spacing: -0.05em;
  font-size: 1.35rem;
  font-weight: 900;
  color: #000000;
  border: 0;
  background: transparent;
  padding: 0;
  cursor: pointer;
}

.menu {
  display: flex;
  gap: 1.5rem;
}

.menu a {
  color: var(--ink);
  text-decoration: none;
  font-size: 0.9rem;
  font-weight: 500;
  letter-spacing: 0.005em;
  transition: color 0.3s cubic-bezier(0.22, 1, 0.36, 1), background-color 0.3s cubic-bezier(0.22, 1, 0.36, 1), transform 0.3s cubic-bezier(0.22, 1, 0.36, 1);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 72px;
  min-height: 52px;
  padding: 0 0.68rem;
  border-radius: 50%;
}

.menu a:hover {
  color: #ffffff;
  background: #0a0a0a;
  transform: translateY(-1px) scale(1.015);
}

.main-content {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 2rem;
  min-height: 0;
}

.upload-section,
.loading-section,
.result-section,
.archive-section {
  width: min(1100px, 100%);
  margin-inline: auto;
}

.section-animate-in {
  animation: sectionFadeSlideIn 0.28s ease;
}

.section-fade-out {
  animation: sectionFadeOut 0.18s ease forwards;
}

.drop-zone {
  border: 2px dashed #4a4a4a;
  background: #f3f3f3;
  width: min(520px, 100%);
  aspect-ratio: 1 / 1;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  cursor: pointer;
  transition: background-color 0.2s ease, border-color 0.2s ease;
}

.drop-zone span {
  font-size: 1.4rem;
  letter-spacing: 0.03em;
  font-weight: 700;
}

.drop-zone small {
  color: var(--muted);
  font-size: 0.85rem;
}

.drop-zone:hover,
.drop-zone.drag-over {
  background: #ebebeb;
}

#fileInput {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

.loading-section {
  max-width: 720px;
  margin: 0 auto;
}

.stage-text {
  font-size: 1.5rem;
  margin-bottom: 1.2rem;
  min-height: 2rem;
  animation: stageFade 1.2s ease;
}

.dots::after {
  content: "";
  display: inline-block;
  width: 1.1em;
  text-align: left;
  animation: dotPulse 1.2s infinite steps(4);
}

.progress-track {
  width: 100%;
  height: 8px;
  border: 1px solid var(--line);
}

.progress-bar {
  width: 0;
  height: 100%;
  background: var(--ink);
  transition: width 1.2s ease;
}

.result-capture-root {
  width: 100%;
}

.result-grid {
  display: grid;
  grid-template-columns: minmax(250px, 1fr) minmax(300px, 1.2fr);
  gap: 2rem;
  align-items: start;
}

.result-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.65rem;
  align-items: center;
  margin-top: 1.25rem;
  padding-top: 1rem;
  border-top: 1px solid var(--line);
}

.artwork-panel {
  border: 1px solid var(--line);
  padding: 0.75rem;
}

.artwork-panel img {
  width: 100%;
  display: block;
  object-fit: contain;
  max-height: 75vh;
}

.report-panel {
  border: 1px solid var(--line);
  padding: 1.4rem;
}

.report-panel h1 {
  margin: 0 0 0.4rem;
  font-size: 1.35rem;
  font-weight: 700;
}

.report-panel h2 {
  margin: 1.4rem 0 0.5rem;
  font-size: 0.95rem;
  letter-spacing: 0.03em;
  font-weight: 700;
}

.curator-name {
  color: var(--muted);
  margin: 0 0 1rem;
}

.professional-comment {
  font-style: italic;
}

.analysis-body p {
  line-height: 1.6;
  font-weight: 500;
}

.metric-item {
  margin-bottom: 0.8rem;
}

.metric-head {
  display: flex;
  justify-content: space-between;
  font-size: 0.82rem;
  margin-bottom: 0.25rem;
}

.metric-track {
  width: 100%;
  height: 10px;
  border: 1px solid var(--line);
}

.metric-fill {
  height: 100%;
  background: var(--ink);
}

.valuation p {
  margin: 0.35rem 0;
}

.valuation p strong {
  font-weight: 800;
}

.reset-button,
.export-button {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  padding: 0.65rem 1rem;
  font: inherit;
  cursor: pointer;
  border-radius: 0;
}

.reset-button:hover,
.export-button:hover {
  background: #f5f5f5;
}

.export-button {
  font-size: 0.9rem;
}

.archive-section h2 {
  margin: 0;
}

.archive-header-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 1rem;
}

.archive-back-button {
  border: 1px solid var(--line);
  background: transparent;
  color: var(--ink);
  padding: 0.45rem 0.7rem;
  font: inherit;
  cursor: pointer;
}

.archive-back-button:hover {
  background: #f5f5f5;
}

.archive-empty-text {
  color: var(--muted);
}

.archive-list {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 1rem;
}

.archive-card {
  border: 1px solid var(--line);
  padding: 0.7rem;
  padding-bottom: 2rem;
  display: grid;
  gap: 0.5rem;
  position: relative;
}

.archive-thumb-wrap {
  position: relative;
}

.archive-thumb {
  width: 100%;
  height: 150px;
  object-fit: cover;
  border: 1px solid var(--line);
  cursor: pointer;
}

.archive-meta {
  display: grid;
  gap: 0.2rem;
  font-size: 0.82rem;
}

.archive-time {
  font-size: 0.72rem;
  color: var(--muted);
}

.archive-delete-button {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.98);
  color: #111111;
  padding: 0.4rem;
  font: inherit;
  cursor: pointer;
  border-radius: 999px;
  position: absolute;
  right: 0.7rem;
  bottom: 0.6rem;
}

.archive-delete-button:hover {
  background: #f5f5f5;
}

.archive-icon-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 30px;
  min-width: 30px;
  padding: 0.28rem;
}

.archive-icon {
  width: 17px;
  height: 17px;
  stroke: currentColor;
  fill: none;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.archive-confirm-modal {
  position: fixed;
  inset: 0;
  z-index: 1100;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.24s cubic-bezier(0.22, 1, 0.36, 1);
  display: grid;
  grid-template: "stack" minmax(0, 1fr) / minmax(0, 1fr);
  padding: max(0.75rem, env(safe-area-inset-top, 0px)) max(0.75rem, env(safe-area-inset-right, 0px))
    max(0.75rem, env(safe-area-inset-bottom, 0px)) max(0.75rem, env(safe-area-inset-left, 0px));
  box-sizing: border-box;
  min-height: 100dvh;
  min-height: 100svh;
  -webkit-tap-highlight-color: transparent;
}

.archive-confirm-modal.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.archive-confirm-backdrop {
  grid-area: stack;
  align-self: stretch;
  justify-self: stretch;
  background: rgba(17, 17, 17, 0.35);
}

.archive-confirm-panel {
  grid-area: stack;
  place-self: center;
  position: relative;
  z-index: 1;
  width: min(360px, 100%);
  max-height: min(88dvh, calc(100dvh - env(safe-area-inset-top, 0px) - env(safe-area-inset-bottom, 0px) - 1.5rem));
  margin: 0;
  border: 1px solid #111111;
  background: #ffffff;
  padding: 1.35rem 1.4rem 1.25rem;
  box-shadow: 0 12px 40px rgba(0, 0, 0, 0.12);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.28s cubic-bezier(0.16, 1, 0.3, 1), transform 0.28s cubic-bezier(0.16, 1, 0.3, 1);
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.archive-confirm-modal.is-visible .archive-confirm-panel {
  opacity: 1;
  transform: translateY(0);
}

.archive-confirm-message {
  margin: 0;
  font-size: 1rem;
  font-weight: 500;
  line-height: 1.45;
}

.archive-confirm-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.55rem;
  margin-top: 1.35rem;
}

.archive-confirm-button {
  border: 1px solid #111111;
  background: #111111;
  color: #ffffff;
  padding: 0.55rem 1rem;
  font: inherit;
  font-size: 0.9rem;
  cursor: pointer;
  min-width: 4.5rem;
  touch-action: manipulation;
  min-height: 44px;
}

.archive-confirm-button:hover {
  background: #333333;
  border-color: #333333;
}

.archive-confirm-button--secondary {
  background: #ffffff;
  color: #111111;
}

.archive-confirm-button--secondary:hover {
  background: #f5f5f5;
  border-color: #111111;
}

@media (prefers-reduced-motion: reduce) {
  .archive-confirm-modal,
  .archive-confirm-panel {
    transition: none !important;
  }
}

.about-modal {
  position: fixed;
  inset: 0;
  z-index: 1000;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.28s cubic-bezier(0.22, 1, 0.36, 1);
}

.about-modal.is-visible {
  opacity: 1;
  pointer-events: auto;
}

.about-modal-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(255, 255, 255, 0.16);
  opacity: 0;
  transition: opacity 0.3s cubic-bezier(0.22, 1, 0.36, 1);
}

.about-modal.is-visible .about-modal-backdrop {
  opacity: 1;
}

.about-modal-panel {
  position: relative;
  z-index: 1;
  width: min(640px, calc(100% - 2rem));
  margin: 10vh auto 0;
  border: 1px solid #000000;
  background: #ffffff;
  padding: 2rem 2rem 1.6rem;
  opacity: 0;
  transform: translateY(14px);
  transition: opacity 0.62s cubic-bezier(0.16, 1, 0.3, 1), transform 0.62s cubic-bezier(0.16, 1, 0.3, 1);
  transition-delay: 0.04s;
}

@media (prefers-reduced-motion: reduce) {
  .about-modal,
  .about-modal-backdrop,
  .about-modal-panel {
    transition: none !important;
  }
}

.about-modal.is-visible .about-modal-panel {
  opacity: 1;
  transform: translateY(0);
}

.about-modal-close {
  position: absolute;
  top: 0.45rem;
  right: 0.65rem;
  border: 0;
  background: transparent;
  color: #111111;
  font-size: 1.35rem;
  font-weight: 300;
  line-height: 1;
  cursor: pointer;
  padding: 0.15rem 0.3rem;
}

.about-modal-close:hover {
  color: #666666;
}

.about-modal-panel h2 {
  margin: 0 0 1.05rem;
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  color: #000000;
}

.about-title-main {
  font-size: 1.2em;
  font-weight: 900;
  letter-spacing: -0.05em;
}

.about-title-sub {
  font-size: 1.06em;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.about-modal-panel p {
  margin: 0 0 0.95rem;
  line-height: 1.75;
  font-weight: 400;
}

.site-footer {
  border-top: 1px solid var(--line);
  padding: 0.9rem 2rem;
  color: var(--muted);
  font-size: 0.75rem;
  text-align: center;
  display: flex;
  justify-content: center;
  align-items: center;
}

.hidden {
  display: none;
}

@keyframes dotPulse {
  0% {
    content: "";
  }
  25% {
    content: ".";
  }
  50% {
    content: "..";
  }
  75% {
    content: "...";
  }
  100% {
    content: "";
  }
}

@keyframes stageFade {
  0% {
    opacity: 0.3;
  }
  100% {
    opacity: 1;
  }
}

@keyframes sectionFadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes sectionFadeOut {
  from {
    opacity: 1;
    transform: translateY(0);
  }
  to {
    opacity: 0;
    transform: translateY(-4px);
  }
}

@media (max-width: 900px) {
  .main-content {
    align-items: center;
    padding: 1.25rem 1rem;
    overflow-y: auto;
    justify-content: center;
  }

  .upload-section:not(.hidden) {
    display: flex;
    justify-content: center;
  }

  .result-grid {
    grid-template-columns: 1fr;
  }

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

  .result-actions .export-button,
  .result-actions .reset-button {
    width: 100%;
    min-height: 48px;
    touch-action: manipulation;
  }

  .archive-confirm-actions {
    flex-direction: column-reverse;
    align-items: stretch;
  }

  .archive-confirm-button {
    width: 100%;
    min-height: 48px;
  }

  .archive-delete-button {
    touch-action: manipulation;
    min-height: 36px;
    min-width: 36px;
  }

  .drop-zone {
    width: min(92vw, 520px);
    max-height: calc(100dvh - 210px);
    margin-top: 0;
    margin-left: auto;
    margin-right: auto;
  }

  .site-footer {
    padding-left: 1rem;
    padding-right: 1rem;
  }

  .stage-text {
    font-size: 1.2rem;
  }

  #aboutLink {
    padding-left: 0.76rem;
    padding-right: 0.6rem;
  }
}