frontend/src/index.css

@tailwind base;
@tailwind components;
@tailwind utilities;

:root,
html[data-theme="light"] {
  color-scheme: light;
  --canvas: #f6e8da;
  --paper: #fbf4ed;
  --paper-soft: #f9eee4;
  --ink: #171411;
  --muted: #6c5f56;
  --rule: #cdb8a6;
  --rule-strong: #a98f7d;
  --clay: #a6533c;
  --olive: #526451;
  --ochre: #87652e;
  --button: #171411;
  --button-text: #fbf4ed;
  --focus: #8d3f2f;
  --selection: #dfb6a4;
  --ambient-one: rgba(192, 126, 92, 0.18);
  --ambient-two: rgba(211, 166, 118, 0.13);
  --edge-shade: rgba(91, 55, 33, 0.12);
  --texture-opacity: 0.16;
  --texture-blend: multiply;
  --control-shadow: rgba(60, 38, 24, 0.14);
}

html[data-theme="dark"] {
  color-scheme: dark;
  --canvas: #1b1714;
  --paper: #241e1a;
  --paper-soft: #201a17;
  --ink: #f7ebdd;
  --muted: #beaa9a;
  --rule: #493c34;
  --rule-strong: #6e594c;
  --clay: #d48669;
  --olive: #9faf91;
  --ochre: #d0ad6c;
  --button: #f7ebdd;
  --button-text: #1b1714;
  --focus: #ed9b7d;
  --selection: #754838;
  --ambient-one: rgba(142, 83, 54, 0.18);
  --ambient-two: rgba(103, 49, 58, 0.14);
  --edge-shade: rgba(0, 0, 0, 0.34);
  --texture-opacity: 0.2;
  --texture-blend: soft-light;
  --control-shadow: rgba(0, 0, 0, 0.28);
}

* {
  box-sizing: border-box;
}

html {
  min-width: 320px;
  scroll-behavior: smooth;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
  overflow-x: hidden;
  background: var(--canvas);
  color: var(--ink);
  font-family: "Times New Roman", Times, serif;
}

body,
button,
input,
textarea,
select,
summary {
  font-family: "Times New Roman", Times, serif;
}

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

button,
summary,
a {
  -webkit-tap-highlight-color: transparent;
}

button:focus-visible,
input:focus-visible,
summary:focus-visible,
a:focus-visible,
[tabindex="-1"]:focus-visible {
  outline: 2px solid var(--focus);
  outline-offset: 4px;
}

button:disabled {
  cursor: not-allowed;
}

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

html[data-theme-transition="true"] body,
html[data-theme-transition="true"] .app-shell,
html[data-theme-transition="true"] .site-header,
html[data-theme-transition="true"] .upload-boundary,
html[data-theme-transition="true"] .choose-button,
html[data-theme-transition="true"] .analyze-button,
html[data-theme-transition="true"] .technical-content,
html[data-theme-transition="true"] .what-you-receive {
  transition: background-color 250ms ease, border-color 250ms ease, color 250ms ease;
}

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

.app-shell {
  position: relative;
  isolation: isolate;
  min-height: 100vh;
  overflow: hidden;
  background: var(--canvas);
  color: var(--ink);
}

.app-shell::before,
.app-shell::after {
  content: "";
  position: fixed;
  pointer-events: none;
  z-index: 0;
}

.app-shell::before {
  inset: 0;
  background-image:
    radial-gradient(ellipse at center, transparent 54%, var(--edge-shade) 100%),
    url("data:image/svg+xml,%3Csvg viewBox='0 0 180 180' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='.82' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='.22'/%3E%3C/svg%3E");
  background-repeat: no-repeat, repeat;
  background-size: 100% 100%, 180px 180px;
  mix-blend-mode: var(--texture-blend);
  opacity: var(--texture-opacity);
}

.app-shell::after {
  inset: -12%;
  background:
    radial-gradient(circle at 18% 20%, var(--ambient-one), transparent 42%),
    radial-gradient(circle at 82% 76%, var(--ambient-two), transparent 44%);
  animation: ambient-light 32s cubic-bezier(0.45, 0, 0.55, 1) infinite alternate;
  will-change: transform;
}

.page-frame {
  position: relative;
  z-index: 1;
  width: min(100%, 1180px);
  margin: 0 auto;
  padding: 0 32px 88px;
}

.site-header {
  min-height: 82px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  border-bottom: 1px solid var(--rule);
  animation: header-reveal 360ms ease-out both;
}

.wordmark {
  color: var(--ink);
  font-size: 1.48rem;
  line-height: 1;
  text-decoration: none;
}

.theme-toggle {
  display: inline-flex;
  min-height: 44px;
  align-items: center;
  gap: 10px;
  padding: 8px 0 8px 12px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 0.98rem;
  cursor: pointer;
  transition: color 180ms ease, transform 180ms ease;
}

.theme-toggle:hover:not(:disabled) {
  color: var(--clay);
  transform: translateY(-1px);
}

.theme-toggle:active:not(:disabled) {
  transform: translateY(0) scale(0.985);
}

.theme-mark {
  position: relative;
  display: block;
  width: 15px;
  height: 15px;
  overflow: hidden;
  border: 1px solid currentColor;
  border-radius: 50%;
  transition: border-color 180ms ease, transform 180ms ease;
}

.theme-mark::after {
  content: "";
  position: absolute;
  inset: -2px -2px -2px 48%;
  background: var(--canvas);
  border-left: 1px solid currentColor;
}

.hero {
  max-width: 820px;
  margin: 58px auto 66px;
  text-align: center;
}

.hero h1,
.hero-line,
.hero-copy {
  animation: editorial-reveal 480ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.hero h1 {
  animation-delay: 60ms;
}

.hero h1 {
  margin: 0;
  font-size: clamp(4rem, 7.2vw, 6rem);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.045em;
}

.hero-line {
  margin: 20px 0 0;
  font-size: clamp(1.65rem, 3vw, 2.25rem);
  font-style: italic;
  line-height: 1.1;
  animation-delay: 120ms;
}

.hero-copy {
  max-width: 620px;
  margin: 24px auto 0;
  color: var(--muted);
  font-size: 1.18rem;
  line-height: 1.6;
  animation-delay: 180ms;
}

.analysis-stage {
  width: min(100%, 820px);
  margin: 0 auto;
  animation: editorial-reveal 500ms 240ms cubic-bezier(0.22, 1, 0.36, 1) both;
}

.analysis-stage.has-result {
  width: 100%;
  animation-delay: 0ms;
}

.media-tabs {
  width: min(100%, 360px);
  margin: 0 auto 26px;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  border-bottom: 1px solid var(--rule);
}

.media-tabs button {
  position: relative;
  min-height: 52px;
  padding: 10px 22px;
  border: 0;
  background: transparent;
  color: var(--muted);
  font-size: 1.08rem;
  cursor: pointer;
  transition: color 180ms ease, background-color 180ms ease, transform 180ms ease;
}

.media-tabs button::after {
  content: "";
  position: absolute;
  right: 0;
  bottom: -1px;
  left: 0;
  height: 2px;
  background: var(--ink);
  transform: scaleX(0);
  transition: transform 240ms ease;
}

.media-tabs button:hover:not(:disabled),
.media-tabs button[aria-selected="true"] {
  color: var(--ink);
}

.media-tabs button:hover:not(:disabled) {
  transform: translateY(-1px);
}

.media-tabs button:active:not(:disabled) {
  transform: translateY(0) scale(0.985);
}

.media-tabs button[aria-selected="true"]::after {
  transform: scaleX(1);
}

.media-tabs button:disabled {
  opacity: 0.58;
  transform: none;
}

.upload-panel {
  max-width: 760px;
  margin: 0 auto;
}

.upload-boundary {
  overflow: hidden;
  border: 1px dashed var(--rule-strong);
  border-radius: 3px;
  background: var(--paper);
  transition: border-color 180ms ease, background-color 180ms ease, box-shadow 180ms ease;
}

.upload-panel[aria-busy="false"] .upload-boundary:hover {
  border-color: var(--clay);
  background: var(--paper-soft);
}

.upload-boundary.is-dragging {
  border-color: var(--clay);
  border-style: solid;
  background: var(--paper-soft);
  box-shadow: inset 0 0 0 1px color-mix(in srgb, var(--clay) 28%, transparent);
}

.drop-surface {
  min-height: 292px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 42px 24px 36px;
  text-align: center;
}

.upload-glyph {
  width: 39px;
  height: 39px;
  display: grid;
  place-items: center;
  margin-bottom: 25px;
  border: 1px solid var(--rule-strong);
  border-radius: 3px;
  color: var(--ink);
  transition: border-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.upload-panel[aria-busy="false"] .upload-boundary:hover .upload-glyph,
.upload-boundary.is-dragging .upload-glyph {
  border-color: var(--clay);
  color: var(--clay);
  transform: translateY(-3px);
}

.upload-glyph svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.5;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.drop-instruction {
  margin: 0;
  color: var(--ink);
  font-size: 1.28rem;
  line-height: 1.35;
}

.drop-or {
  margin: 10px 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.choose-button {
  min-height: 44px;
  padding: 10px 24px;
  border: 1px solid var(--button);
  border-radius: 2px;
  background: var(--button);
  color: var(--button-text);
  font-size: 1rem;
  cursor: pointer;
  transition: transform 180ms ease, opacity 180ms ease, border-color 180ms ease, background-color 180ms ease, box-shadow 180ms ease;
}

.choose-button:hover:not(:disabled) {
  opacity: 0.94;
  transform: translateY(-1px);
  box-shadow: 0 6px 16px var(--control-shadow);
}

.choose-button:active:not(:disabled),
.analyze-button:active:not(:disabled) {
  transform: translateY(0) scale(0.985);
  box-shadow: none;
}

.choose-button:disabled {
  opacity: 0.55;
  transform: none;
  box-shadow: none;
}

.file-help {
  margin: 17px 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  line-height: 1.4;
}

.selected-file {
  min-height: 78px;
  display: grid;
  grid-template-columns: 80px minmax(0, 1fr) 44px;
  align-items: center;
  gap: 16px;
  padding: 12px 14px;
  border-top: 1px solid var(--rule);
}

.file-preview {
  width: 80px;
  height: 52px;
  overflow: hidden;
  background: var(--paper-soft);
  border: 1px solid var(--rule);
}

.file-preview img,
.file-preview video {
  width: 100%;
  height: 100%;
  display: block;
  object-fit: cover;
}

.file-copy {
  min-width: 0;
}

.file-name,
.file-meta {
  margin: 0;
}

.file-name {
  overflow: hidden;
  color: var(--ink);
  font-size: 1rem;
  line-height: 1.25;
  text-overflow: ellipsis;
  white-space: nowrap;
}

.file-meta {
  margin-top: 5px;
  color: var(--muted);
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
}

.remove-file {
  width: 44px;
  height: 44px;
  display: grid;
  place-items: center;
  padding: 0;
  border: 0;
  background: transparent;
  color: var(--muted);
  cursor: pointer;
  transition: color 180ms ease, transform 180ms ease;
}

.remove-file:hover:not(:disabled) {
  color: var(--ink);
  transform: translateY(-1px);
}

.remove-file:active:not(:disabled) {
  transform: translateY(0) scale(0.96);
}

.remove-file:disabled {
  transform: none;
}

.remove-file svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.3;
  stroke-linecap: round;
}

.analyze-button {
  width: 100%;
  min-height: 56px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 20px;
  margin-top: 14px;
  padding: 12px 24px;
  border: 1px solid var(--button);
  border-radius: 2px;
  background: var(--button);
  color: var(--button-text);
  font-size: 1.12rem;
  cursor: pointer;
  transition: transform 180ms ease, opacity 180ms ease, border-color 180ms ease, background-color 180ms ease, box-shadow 180ms ease;
}

.analyze-button:hover:not(:disabled) {
  opacity: 0.94;
  transform: translateY(-1px);
  box-shadow: 0 6px 18px var(--control-shadow);
}

.analyze-button:disabled {
  opacity: 0.38;
  transform: none;
  box-shadow: none;
}

.analyze-button svg {
  width: 19px;
  height: 19px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 180ms ease;
}

.analyze-button:hover:not(:disabled) svg {
  transform: translateX(4px);
}

.loading-status {
  min-height: 52px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 14px;
  padding: 14px 8px 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.loading-line {
  width: 34px;
  height: 1px;
  display: block;
  background: var(--clay);
  transform-origin: left;
  animation: loading-line 900ms ease-in-out infinite alternate;
}

.inline-error {
  display: flex;
  align-items: start;
  justify-content: space-between;
  gap: 24px;
  margin-top: 18px;
  padding: 16px 0;
  border-top: 1px solid var(--clay);
  border-bottom: 1px solid var(--clay);
  color: var(--clay);
}

.inline-error strong,
.inline-error p {
  margin: 0;
}

.inline-error p {
  margin-top: 4px;
  line-height: 1.45;
}

.inline-error button {
  flex: 0 0 auto;
  min-height: 40px;
  padding: 8px 14px;
  border: 1px solid currentColor;
  border-radius: 2px;
  background: transparent;
  color: currentColor;
  cursor: pointer;
  transition: background-color 180ms ease, color 180ms ease, transform 180ms ease;
}

.inline-error button:hover {
  background: var(--clay);
  color: var(--paper);
  transform: translateY(-1px);
}

.inline-error button:active {
  transform: translateY(0) scale(0.985);
}

.report-note {
  margin: 28px 0 0;
  padding-top: 24px;
  border-top: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.96rem;
}

.analysis-report {
  --risk: var(--clay);
  scroll-margin-top: 24px;
  animation: report-reveal 360ms ease both;
}

.analysis-report.risk-trust {
  --risk: var(--olive);
}

.analysis-report.risk-medium {
  --risk: var(--ochre);
}

.analysis-report.risk-low {
  --risk: #b06b45;
}

html[data-theme="dark"] .analysis-report.risk-low {
  --risk: #dd9a72;
}

.report-meta {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 0 2px 10px;
  color: var(--muted);
  font-size: 0.82rem;
  font-variant-numeric: tabular-nums;
}

.score-summary {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 52px;
  align-items: center;
  padding: 24px 4px 38px;
  border-bottom: 1px solid var(--rule-strong);
}

.score-block {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
}

.score-block > span {
  color: var(--ink);
  font-size: 1.15rem;
}

.score-number {
  display: flex;
  align-items: flex-start;
  gap: 8px;
  margin-top: 2px;
  color: var(--risk);
  font-variant-numeric: tabular-nums;
}

.score-number strong {
  margin-top: 2px;
  font-size: clamp(7rem, 13vw, 10rem);
  font-weight: 400;
  line-height: 0.82;
  letter-spacing: -0.065em;
}

.score-number.decision-word strong {
  max-width: 360px;
  margin-top: 12px;
  font-size: clamp(3rem, 6vw, 5.4rem);
  line-height: 0.95;
  letter-spacing: -0.045em;
  overflow-wrap: anywhere;
}

.assessment-reason {
  margin: 0 0 18px;
  color: var(--ink);
  font-size: 1.05rem;
  line-height: 1.6;
}

.plain-language-summary,
.uncertainty-note {
  max-width: 760px;
  margin: 0;
  color: var(--ink);
  font-size: 1.2rem;
  line-height: 1.62;
}

.plain-language-note {
  max-width: 760px;
  margin: 18px 0 0;
  padding: 14px 16px;
  border-left: 3px solid var(--risk);
  background: var(--paper-soft);
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.58;
}

.score-number > span {
  margin-top: 12px;
  font-size: 2rem;
}

.score-block > small {
  margin-top: 12px;
  color: var(--muted);
  font-size: 0.82rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.verdict-block h1,
.verdict-block p {
  margin: 0;
}

.verdict-block h1 {
  color: var(--risk);
  font-size: clamp(2.35rem, 4.5vw, 4.1rem);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.025em;
}

.verdict {
  margin-top: 11px !important;
  color: var(--ink);
  font-size: 1.35rem;
  line-height: 1.35;
}

.report-summary {
  max-width: 680px;
  margin-top: 12px !important;
  color: var(--muted);
  font-size: 1.05rem;
  line-height: 1.6;
}

.report-section {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr);
  gap: 52px;
  padding: 26px 4px;
  border-bottom: 1px solid var(--rule);
}

.report-section-heading {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
}

.section-number {
  color: var(--muted);
  font-size: 1.55rem;
  font-variant-numeric: tabular-nums;
}

.report-section-heading h2 {
  margin: 0;
  color: var(--ink);
  font-size: 1.35rem;
  font-weight: 400;
  line-height: 1.15;
}

.warning-section .section-number,
.warning-section .finding-list li::marker {
  color: var(--clay);
}

.positive-section .section-number,
.positive-section .finding-list li::marker {
  color: var(--olive);
}

.report-section-content {
  min-width: 0;
}

.evidence-list {
  margin: 0;
}

.evidence-list > div {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  gap: 24px;
  padding: 9px 0;
  border-bottom: 1px solid var(--rule);
}

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

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

.evidence-list dt {
  color: var(--ink);
}

.evidence-list dd {
  margin: 0;
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.finding-list {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--ink);
  font-size: 1.06rem;
}

.evidence-list + .finding-list {
  margin-top: 16px;
}

.finding-list li {
  padding-left: 6px;
  line-height: 1.55;
}

.finding-list li + li {
  margin-top: 6px;
}

.empty-finding {
  margin: 0;
  color: var(--muted);
  font-style: italic;
  line-height: 1.55;
}

.recommendation-copy > p {
  margin: 0;
  color: var(--ink);
  font-size: 1.18rem;
  line-height: 1.45;
}

.recommendation-copy ol {
  margin: 0;
  padding-left: 1.2rem;
  color: var(--ink);
  font-size: 1.06rem;
}

.recommendation-copy li {
  padding-left: 6px;
  line-height: 1.58;
}

.recommendation-copy li + li {
  margin-top: 9px;
}

.report-disclaimer {
  margin: 0;
  padding: 20px 4px;
  border-bottom: 1px solid var(--rule);
  color: var(--muted);
  font-size: 0.9rem;
  font-style: italic;
  line-height: 1.5;
}

.technical-evidence {
  border-bottom: 1px solid var(--rule);
}

.technical-evidence summary {
  display: grid;
  grid-template-columns: 220px minmax(0, 1fr) 24px;
  gap: 52px;
  align-items: center;
  min-height: 86px;
  padding: 16px 4px;
  color: var(--ink);
  cursor: pointer;
  list-style: none;
}

.technical-evidence summary::-webkit-details-marker {
  display: none;
}

.technical-summary-heading {
  display: grid;
  grid-template-columns: 44px minmax(0, 1fr);
  gap: 10px;
  align-items: baseline;
  font-size: 1.35rem;
}

.technical-preview {
  color: var(--muted);
  font-size: 0.98rem;
}

.technical-evidence summary > svg {
  width: 20px;
  height: 20px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 200ms ease;
}

.technical-evidence[open] summary > svg {
  transform: rotate(180deg);
}

.technical-content {
  padding: 0 24px 8px;
  border-top: 1px solid var(--rule);
  background: var(--paper-soft);
}

.technical-group {
  padding: 26px 0;
  border-bottom: 1px solid var(--rule);
}

.technical-group:last-child {
  border-bottom: 0;
}

.technical-group h3 {
  margin: 0 0 16px;
  color: var(--ink);
  font-size: 1.28rem;
  font-weight: 400;
}

.technical-group p {
  max-width: 780px;
  margin: 8px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.technical-group .technical-lead {
  color: var(--ink);
  font-size: 1.1rem;
}

.metric-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  margin: 0;
  border-top: 1px solid var(--rule);
}

.metric-list > div {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(0, 1.15fr);
  gap: 16px;
  align-items: start;
  min-width: 0;
  padding: 10px 0;
  border-bottom: 1px solid var(--rule);
}

.metric-list > div:nth-child(odd) {
  padding-right: 24px;
  border-right: 1px solid var(--rule);
}

.metric-list > div:nth-child(even) {
  padding-left: 24px;
}

.metric-list dt {
  min-width: 0;
  color: var(--muted);
  overflow-wrap: anywhere;
  line-height: 1.45;
}

.metric-list dd {
  min-width: 0;
  margin: 0;
  color: var(--ink);
  text-align: right;
  font-variant-numeric: tabular-nums;
  overflow-wrap: anywhere;
  line-height: 1.45;
}

.hash-list dd {
  overflow-wrap: anywhere;
}

.frame-list,
.detector-list {
  margin-top: 20px;
  border-top: 1px solid var(--rule);
}

.frame-row {
  display: grid;
  grid-template-columns: 0.7fr 0.8fr 1fr 1.2fr;
  gap: 18px;
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.frame-row > div {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.frame-row span,
.detector-row > span,
.detector-row div span,
.citation-source {
  color: var(--muted);
  font-size: 0.82rem;
}

.frame-row strong,
.detector-row strong {
  color: var(--ink);
  font-weight: 400;
  font-variant-numeric: tabular-nums;
}

.frame-row > p {
  grid-column: 1 / -1;
  margin: 0;
  color: var(--clay);
}

.detector-row {
  display: grid;
  grid-template-columns: minmax(0, 1.5fr) minmax(100px, 0.7fr) minmax(150px, 1fr);
  gap: 20px;
  align-items: center;
  padding: 12px 0;
  border-bottom: 1px solid var(--rule);
}

.detector-row > div {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.detector-row > span,
.detector-row strong,
.detector-row div span {
  min-width: 0;
  overflow-wrap: anywhere;
}

.provenance-row > div,
.research-summary > div,
.source-match {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 20px;
}

.provenance-row strong,
.research-summary strong,
.source-match strong {
  color: var(--ink);
  font-weight: 400;
}

.provenance-row span,
.research-summary span,
.source-match span {
  color: var(--muted);
  font-variant-numeric: tabular-nums;
}

.source-match {
  flex-wrap: wrap;
  margin-top: 18px;
  padding-top: 14px;
  border-top: 1px solid var(--rule);
}

.source-match p {
  flex-basis: 100%;
}

.query-line {
  font-size: 0.9rem;
  font-style: italic;
}

.citation-list {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  border-top: 1px solid var(--rule);
}

.citation-list li {
  padding: 14px 0;
  border-bottom: 1px solid var(--rule);
}

.citation-list a {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--ink);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.citation-list a svg {
  width: 15px;
  height: 15px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.2;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.citation-source {
  margin-left: 10px;
}

.citation-list p {
  margin-top: 7px;
  font-size: 0.92rem;
}

.technical-empty {
  margin: 0 !important;
  font-style: italic;
}

.new-analysis {
  min-height: 48px;
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin-top: 24px;
  padding: 8px 4px;
  border: 0;
  background: transparent;
  color: var(--ink);
  font-size: 1rem;
  cursor: pointer;
  transition: color 180ms ease, transform 180ms ease;
}

.new-analysis:hover {
  color: var(--clay);
  transform: translateY(-1px);
}

.new-analysis:active {
  transform: translateY(0) scale(0.985);
}

.new-analysis svg {
  width: 18px;
  height: 18px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.4;
  stroke-linecap: round;
  stroke-linejoin: round;
  transition: transform 180ms ease;
}

.new-analysis:hover svg {
  transform: translateX(-4px);
}

.what-you-receive {
  width: min(100%, 980px);
  margin: 96px auto 0;
  padding: 42px 4px 0;
  border-top: 1px solid var(--rule-strong);
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 520ms ease, transform 520ms cubic-bezier(0.22, 1, 0.36, 1), border-color 250ms ease;
}

.what-you-receive.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.receive-intro {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(320px, 1.1fr);
  gap: 72px;
  align-items: end;
  margin-bottom: 42px;
}

.receive-intro h2,
.receive-intro p,
.receive-list h3,
.receive-list p,
.receive-disclaimer {
  margin: 0;
}

.receive-intro h2 {
  max-width: 460px;
  font-size: clamp(2.8rem, 5vw, 4.6rem);
  font-weight: 400;
  line-height: 0.98;
  letter-spacing: -0.04em;
}

.receive-intro > p {
  max-width: 520px;
  color: var(--muted);
  font-size: 1.16rem;
  line-height: 1.58;
}

.receive-list {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin: 0;
  padding: 0;
  border-top: 1px solid var(--rule);
  border-bottom: 1px solid var(--rule);
  list-style: none;
}

.receive-list li {
  min-width: 0;
  padding: 30px 30px 34px;
}

.receive-list li:first-child {
  padding-left: 0;
}

.receive-list li:last-child {
  padding-right: 0;
}

.receive-list li + li {
  border-left: 1px solid var(--rule);
}

.receive-number {
  display: block;
  margin-bottom: 28px;
  color: var(--clay);
  font-size: 0.84rem;
  font-variant-numeric: tabular-nums;
  letter-spacing: 0.09em;
}

.receive-list h3 {
  color: var(--ink);
  font-size: 1.48rem;
  font-weight: 400;
  line-height: 1.15;
}

.receive-list p {
  margin-top: 14px;
  color: var(--muted);
  font-size: 0.98rem;
  line-height: 1.58;
}

.receive-disclaimer {
  max-width: 760px;
  margin-top: 20px;
  color: var(--muted);
  font-size: 0.9rem;
  font-style: italic;
  line-height: 1.5;
}

@keyframes header-reveal {
  from { opacity: 0; }
  to { opacity: 1; }
}

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

@keyframes ambient-light {
  from { transform: translate3d(-3px, -2px, 0) scale(1.01); }
  to { transform: translate3d(3px, 4px, 0) scale(1.01); }
}

@keyframes report-reveal {
  from { opacity: 0; transform: translateY(12px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes loading-line {
  from { opacity: 0.35; transform: scaleX(0.35); }
  to { opacity: 1; transform: scaleX(1); }
}

@media (max-width: 900px) {
  .page-frame {
    padding-right: 26px;
    padding-left: 26px;
  }

  .hero {
    margin-top: 52px;
  }

  .score-summary,
  .report-section {
    grid-template-columns: 180px minmax(0, 1fr);
    gap: 34px;
  }

  .technical-evidence summary {
    grid-template-columns: 180px minmax(0, 1fr) 24px;
    gap: 34px;
  }

  .receive-intro {
    gap: 42px;
  }

  .receive-list li {
    padding-right: 22px;
    padding-left: 22px;
  }
}

@media (max-width: 680px) {
  .page-frame {
    padding: 0 20px 64px;
  }

  .site-header {
    min-height: 72px;
  }

  .wordmark {
    font-size: 1.28rem;
  }

  .theme-toggle {
    font-size: 0.9rem;
  }

  .hero {
    margin: 42px auto 48px;
  }

  .hero h1 {
    font-size: clamp(3rem, 15vw, 4.25rem);
    line-height: 1;
  }

  .hero-line {
    margin-top: 15px;
    font-size: 1.45rem;
  }

  .hero-copy {
    margin-top: 20px;
    font-size: 1.04rem;
    line-height: 1.55;
  }

  .media-tabs {
    width: 100%;
    margin-bottom: 24px;
  }

  .media-tabs button {
    min-height: 50px;
    font-size: 1rem;
  }

  .drop-surface {
    min-height: 255px;
    padding: 34px 18px 30px;
  }

  .drop-instruction {
    font-size: 1.12rem;
  }

  .selected-file {
    grid-template-columns: 62px minmax(0, 1fr) 42px;
    gap: 12px;
    padding: 10px;
  }

  .file-preview {
    width: 62px;
    height: 46px;
  }

  .inline-error {
    flex-direction: column;
    gap: 12px;
  }

  .report-meta {
    align-items: flex-start;
    flex-direction: column;
    gap: 4px;
  }

  .score-summary {
    grid-template-columns: 1fr;
    gap: 26px;
    padding-top: 20px;
  }

  .score-number strong {
    font-size: clamp(6.5rem, 34vw, 8rem);
  }

  .verdict-block h1 {
    font-size: 2.7rem;
  }

  .report-section {
    grid-template-columns: 1fr;
    gap: 18px;
    padding: 24px 0;
  }

  .technical-evidence summary {
    grid-template-columns: minmax(0, 1fr) 22px;
    gap: 12px;
    padding: 18px 0;
  }

  .technical-summary-heading {
    grid-column: 1;
  }

  .technical-preview {
    grid-column: 1;
    padding-left: 54px;
    font-size: 0.9rem;
  }

  .technical-evidence summary > svg {
    grid-column: 2;
    grid-row: 1 / span 2;
  }

  .technical-content {
    margin-right: -20px;
    margin-left: -20px;
    padding: 0 20px 6px;
  }

  .metric-list {
    grid-template-columns: 1fr;
  }

  .metric-list > div:nth-child(odd),
  .metric-list > div:nth-child(even) {
    padding-right: 0;
    padding-left: 0;
    border-right: 0;
  }

  .frame-row {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .detector-row {
    grid-template-columns: 1fr;
    gap: 5px;
  }

  .provenance-row > div,
  .research-summary > div,
  .source-match {
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
  }

  .what-you-receive {
    margin-top: 72px;
    padding-top: 34px;
  }

  .receive-intro {
    grid-template-columns: 1fr;
    gap: 18px;
    margin-bottom: 32px;
  }

  .receive-intro h2 {
    font-size: clamp(2.6rem, 13vw, 3.5rem);
  }

  .receive-intro > p {
    font-size: 1.04rem;
  }

  .receive-list {
    grid-template-columns: 1fr;
  }

  .receive-list li,
  .receive-list li:first-child,
  .receive-list li:last-child {
    padding: 25px 0 28px;
  }

  .receive-list li + li {
    border-top: 1px solid var(--rule);
    border-left: 0;
  }

  .receive-number {
    margin-bottom: 16px;
  }
}

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

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    scroll-behavior: auto !important;
    transition-duration: 0.01ms !important;
  }

  .app-shell::after {
    animation: none !important;
    transform: none !important;
  }

  .what-you-receive {
    opacity: 1;
    transform: none;
  }
}