:root {
  color-scheme: light dark;
  --bg: #f5f5f7;
  --bg-soft: #ffffffcc;
  --panel: rgba(255, 255, 255, 0.74);
  --panel-strong: rgba(255, 255, 255, 0.92);
  --border: rgba(15, 23, 42, 0.08);
  --border-strong: rgba(15, 23, 42, 0.14);
  --text: #111114;
  --muted: rgba(17, 17, 20, 0.56);
  --accent: #2b3443;
  --accent-soft: rgba(43, 52, 67, 0.08);
  --shadow: 0 26px 70px rgba(15, 23, 42, 0.1);
  --shadow-soft: 0 14px 28px rgba(15, 23, 42, 0.08);
  --backdrop: blur(24px) saturate(150%);
  --hero-font: "SF Pro Display", "Helvetica Neue", "PingFang SC", sans-serif;
  --radius-xl: 32px;
  --radius-lg: 24px;
  --radius-md: 18px;
}

html[data-theme="dark"] {
  --bg: #0b0b0c;
  --bg-soft: #111214cc;
  --panel: rgba(22, 22, 24, 0.72);
  --panel-strong: rgba(28, 28, 31, 0.92);
  --border: rgba(255, 255, 255, 0.08);
  --border-strong: rgba(255, 255, 255, 0.14);
  --text: #f5f5f7;
  --muted: rgba(245, 245, 247, 0.58);
  --accent: #d7d9de;
  --accent-soft: rgba(215, 217, 222, 0.08);
  --shadow: 0 28px 74px rgba(0, 0, 0, 0.34);
  --shadow-soft: 0 14px 28px rgba(0, 0, 0, 0.24);
}

* {
  box-sizing: border-box;
}

[hidden] {
  display: none !important;
}

html,
body {
  min-height: 100%;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--hero-font);
  overflow-x: hidden;
  overflow-y: auto;
}

button,
input,
select {
  font: inherit;
}

.background-stage {
  position: fixed;
  inset: 0;
  z-index: -4;
  overflow: hidden;
  pointer-events: none;
}

#ambient-canvas,
.bg-grid,
.bg-glow,
.bg-vignette {
  position: absolute;
  inset: 0;
}

#ambient-canvas {
  width: 100%;
  height: 100%;
  opacity: 0.12;
}

.bg-grid {
  background-image:
    linear-gradient(rgba(127, 127, 127, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(127, 127, 127, 0.08) 1px, transparent 1px);
  background-size: 88px 88px;
  opacity: 0.12;
  mask-image: radial-gradient(circle at center, black 34%, transparent 90%);
}

.bg-glow {
  filter: blur(120px);
}

.bg-glow-a {
  background: radial-gradient(circle, rgba(255, 255, 255, 0.18), transparent 56%);
  transform: translate3d(-14%, -10%, 0);
}

.bg-glow-b {
  background: radial-gradient(circle, rgba(90, 104, 130, 0.14), transparent 54%);
  transform: translate3d(70%, 22%, 0);
}

html[data-theme="dark"] .bg-glow-a {
  background: radial-gradient(circle, rgba(255, 255, 255, 0.08), transparent 56%);
}

html[data-theme="dark"] .bg-glow-b {
  background: radial-gradient(circle, rgba(215, 217, 222, 0.06), transparent 54%);
}

.bg-vignette {
  background:
    radial-gradient(circle at center, transparent 36%, rgba(0, 0, 0, 0.08) 100%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.12), rgba(255, 255, 255, 0));
}

html[data-theme="dark"] .bg-vignette {
  background:
    radial-gradient(circle at center, transparent 36%, rgba(0, 0, 0, 0.68) 100%),
    linear-gradient(180deg, rgba(0, 0, 0, 0.04), rgba(0, 0, 0, 0.3));
}

.cursor-halo {
  position: fixed;
  left: 0;
  top: 0;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.12), transparent 70%);
  transform: translate3d(calc(var(--pointer-x, 50vw) - 140px), calc(var(--pointer-y, 50vh) - 140px), 0);
  pointer-events: none;
  z-index: -1;
  filter: blur(14px);
  transition: transform 120ms linear;
}

html[data-theme="dark"] .cursor-halo {
  background: radial-gradient(circle, rgba(255, 255, 255, 0.05), transparent 70%);
}

.app-shell {
  width: min(1440px, calc(100vw - 32px));
  min-height: 100vh;
  margin: 0 auto;
  padding: 20px 0 28px;
  display: grid;
  grid-template-rows: auto auto auto auto;
  gap: 18px;
}

.topbar,
.summary-strip,
.panel {
  position: relative;
  overflow: hidden;
  border: 1px solid var(--border);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.22), rgba(255, 255, 255, 0.08)),
    var(--panel);
  box-shadow: var(--shadow);
  backdrop-filter: var(--backdrop);
}

html[data-theme="dark"] .topbar,
html[data-theme="dark"] .summary-strip,
html[data-theme="dark"] .panel {
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.032), rgba(255, 255, 255, 0.008)),
    var(--panel);
}

.topbar {
  min-height: 64px;
  padding: 0 18px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  border-radius: 999px;
}

.brandmark {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.brandmark-dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 0 8px var(--accent-soft);
}

.topbar-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-shell {
  max-width: 900px;
  padding: 18px 6px 4px;
}

.eyebrow,
.section-tag {
  margin: 0 0 12px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.hero-shell h1 {
  margin: 0;
  font-size: clamp(34px, 5.2vw, 68px);
  line-height: 0.98;
  letter-spacing: -0.065em;
  font-weight: 700;
  text-wrap: balance;
}

.hero-copy {
  max-width: 720px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 17px;
  line-height: 1.55;
  letter-spacing: -0.02em;
}

.summary-strip {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  border-radius: var(--radius-xl);
}

.summary-item {
  padding: 20px 22px;
  border-right: 1px solid rgba(127, 127, 127, 0.12);
  text-align: center;
}

.summary-item:last-child {
  border-right: 0;
}

.summary-item span {
  display: block;
  margin-bottom: 8px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.summary-item strong {
  display: block;
  font-size: 19px;
  font-weight: 650;
}

.workspace {
  display: grid;
  grid-template-columns: 320px 420px minmax(0, 1fr);
  gap: 18px;
  align-items: start;
}

.panel {
  border-radius: var(--radius-xl);
  padding: 22px;
  display: flex;
  flex-direction: column;
}

.panel-heading,
.group-heading,
.results-head,
.status-row,
.settings-actions,
.compact-form,
.topbar-actions {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.panel-heading,
.group-heading {
  justify-content: space-between;
  align-items: flex-start;
}

.panel-heading {
  margin-bottom: 16px;
}

.group-block {
  margin-top: 20px;
  padding-top: 20px;
  border-top: 1px solid rgba(127, 127, 127, 0.12);
}

.group-heading {
  margin-bottom: 14px;
}

.panel-heading h2,
.group-heading h3 {
  margin: 0;
  font-size: 26px;
  font-weight: 650;
  letter-spacing: -0.05em;
}

.button,
.mode-pill {
  position: relative;
  overflow: hidden;
  min-height: 46px;
  padding: 0 18px;
  border-radius: 999px;
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  color: var(--text);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease,
    box-shadow 180ms ease;
}

.button::before,
.mode-pill::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(120deg, transparent 20%, rgba(255, 255, 255, 0.16) 50%, transparent 80%);
  transform: translateX(-120%);
  transition: transform 420ms ease;
  pointer-events: none;
}

.button:hover::before,
.mode-pill:hover::before {
  transform: translateX(120%);
}

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

.button:active,
.mode-pill:active {
  transform: translateY(1px);
}

.button-primary,
.mode-pill.active {
  border-color: var(--border-strong);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04)),
    var(--panel-strong);
  box-shadow: var(--shadow-soft);
}

html[data-theme="dark"] .button-primary,
html[data-theme="dark"] .mode-pill.active {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    var(--panel-strong);
}

.button-secondary,
.button-ghost,
.mode-pill {
  border-color: var(--border);
  background: rgba(255, 255, 255, 0.08);
}

html[data-theme="dark"] .button-secondary,
html[data-theme="dark"] .button-ghost,
html[data-theme="dark"] .mode-pill {
  background: rgba(255, 255, 255, 0.03);
}

.button:disabled {
  opacity: 0.42;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.button .ripple {
  position: absolute;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255, 255, 255, 0.28), rgba(255, 255, 255, 0));
  transform: translate(-50%, -50%) scale(0);
  animation: ripplePulse 560ms ease-out forwards;
  pointer-events: none;
}

.dropzone {
  display: grid;
  place-items: center;
  gap: 8px;
  min-height: 148px;
  padding: 20px;
  border-radius: var(--radius-lg);
  border: 1px dashed var(--border-strong);
  background:
    radial-gradient(circle at top center, rgba(255, 255, 255, 0.16), transparent 54%),
    var(--bg-soft);
  text-align: center;
  cursor: pointer;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    box-shadow 180ms ease;
}

.dropzone:hover,
.dropzone.dragover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-soft);
}

.dropzone strong {
  font-size: 26px;
  font-weight: 650;
  letter-spacing: -0.05em;
}

.dropzone span {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.status-badge {
  width: 100%;
  padding: 14px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.08);
  text-align: center;
}

html[data-theme="dark"] .status-badge {
  background: rgba(255, 255, 255, 0.03);
}

.status-badge span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.status-badge strong {
  display: block;
  font-size: 13px;
}

.mode-switch {
  display: inline-flex;
  gap: 8px;
  padding: 6px;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.08);
}

html[data-theme="dark"] .mode-switch {
  background: rgba(255, 255, 255, 0.03);
}

.mode-pill {
  min-width: 116px;
}

.selection-hero {
  margin-top: 18px;
  padding: 24px 20px;
  border-radius: 28px;
  border: 1px solid var(--border);
  background:
    radial-gradient(circle at top center, rgba(255, 255, 255, 0.14), transparent 62%),
    var(--bg-soft);
  text-align: center;
}

.selection-hero.is-empty {
  opacity: 0.84;
}

.selection-kicker {
  display: block;
  margin-bottom: 10px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.selection-hero strong {
  display: block;
  font-size: clamp(24px, 3vw, 34px);
  line-height: 1.04;
  letter-spacing: -0.05em;
}

.selection-hero p {
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 13px;
  letter-spacing: 0.03em;
}

.settings-grid,
.preset-list,
.results-list {
  display: grid;
  gap: 12px;
}

.settings-grid {
  margin-top: 18px;
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.field {
  display: grid;
  gap: 10px;
}

.field-wide {
  grid-column: 1 / -1;
}

.field span {
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

input[type="text"],
input[type="number"],
select,
input[type="color"] {
  width: 100%;
  min-height: 50px;
  padding: 13px 15px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.12);
  color: var(--text);
  outline: none;
  transition:
    border-color 180ms ease,
    box-shadow 180ms ease;
}

html[data-theme="dark"] input[type="text"],
html[data-theme="dark"] input[type="number"],
html[data-theme="dark"] select,
html[data-theme="dark"] input[type="color"] {
  background: rgba(255, 255, 255, 0.04);
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus,
input[type="color"]:focus {
  border-color: var(--border-strong);
  box-shadow: 0 0 0 4px rgba(127, 127, 127, 0.08);
}

input[type="range"] {
  width: 100%;
  accent-color: var(--accent);
}

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

.preset-card {
  position: relative;
}

.preset-card input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.preset-card span {
  display: block;
  min-height: 84px;
  padding: 14px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.08);
  text-align: center;
  transition:
    border-color 180ms ease,
    background 180ms ease,
    transform 180ms ease,
    box-shadow 180ms ease;
}

html[data-theme="dark"] .preset-card span {
  background: rgba(255, 255, 255, 0.03);
}

.preset-card:hover span {
  transform: translateY(-1px);
}

.preset-card input:checked + span {
  border-color: var(--border-strong);
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.16), rgba(255, 255, 255, 0.04)),
    var(--panel-strong);
  box-shadow: var(--shadow-soft);
}

html[data-theme="dark"] .preset-card input:checked + span {
  background:
    linear-gradient(135deg, rgba(255, 255, 255, 0.08), rgba(255, 255, 255, 0.02)),
    var(--panel-strong);
}

.preset-card strong {
  display: block;
  margin-bottom: 5px;
  font-size: 14px;
  font-weight: 650;
}

.preset-card em {
  display: block;
  color: var(--muted);
  font-style: normal;
  font-size: 12px;
  letter-spacing: 0.05em;
}

.compact-form {
  margin-top: 14px;
}

.compact-form .field {
  flex: 1 1 120px;
}

.compact-form-single .field {
  max-width: 180px;
}

.settings-actions {
  margin-top: auto;
  padding-top: 18px;
}

.settings-actions .button {
  flex: 1 1 180px;
}

.panel-source,
.panel-settings,
.panel-results {
  overflow: hidden;
}

.panel-results {
  transition:
    box-shadow 260ms ease,
    border-color 260ms ease,
    transform 260ms ease;
  outline: none;
}

.panel-results.results-active {
  border-color: var(--border-strong);
  box-shadow:
    0 0 0 1px var(--border-strong),
    var(--shadow);
}

.source-list,
.results-list {
  overflow: visible;
  padding-right: 4px;
}

.source-list.empty-state,
.results-list.empty-state {
  display: grid;
  place-items: center;
}

.empty-state {
  min-height: 160px;
  text-align: center;
  color: var(--muted);
  border: 1px dashed var(--border);
  border-radius: var(--radius-lg);
}

.source-stack {
  display: grid;
  gap: 16px;
}

.stack-stage {
  position: relative;
  min-height: 220px;
  border-radius: 28px;
  border: 1px solid var(--border);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.18), rgba(255, 255, 255, 0.04)),
    var(--bg-soft);
  overflow: hidden;
}

.stack-photo {
  position: absolute;
  width: 58%;
  aspect-ratio: 1;
  left: 50%;
  top: 50%;
  border-radius: 22px;
  border: 1px solid rgba(255, 255, 255, 0.18);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.38), rgba(255, 255, 255, 0.12)),
    rgba(255, 255, 255, 0.42);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.12);
  transform-origin: center;
  overflow: hidden;
}

html[data-theme="dark"] .stack-photo {
  border: 1px solid rgba(255, 255, 255, 0.12);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), rgba(255, 255, 255, 0.02)),
    rgba(255, 255, 255, 0.03);
  box-shadow: 0 18px 36px rgba(0, 0, 0, 0.22);
}

.stack-photo.stack-left {
  transform: translate(-50%, -50%) rotate(-8deg) translateX(-38px);
  z-index: 1;
}

.stack-photo.stack-right {
  transform: translate(-50%, -50%) rotate(6deg) translateX(42px);
  z-index: 2;
}

.stack-photo.stack-center {
  transform: translate(-50%, -50%) rotate(-3deg) translateY(-6px);
  z-index: 3;
}

.stack-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.stack-photo::after {
  content: "";
  position: absolute;
  inset: 16px;
  border-radius: 16px;
  border: 1px solid rgba(127, 127, 127, 0.16);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.35);
}

.stack-overlay {
  position: absolute;
  inset: auto 14px 14px auto;
  min-width: 86px;
  min-height: 86px;
  padding: 12px;
  border-radius: 24px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(18px);
  display: grid;
  place-items: center;
  text-align: center;
}

html[data-theme="dark"] .stack-overlay {
  background: rgba(12, 12, 12, 0.7);
}

.stack-overlay strong {
  display: block;
  font-size: 26px;
  line-height: 1;
}

.stack-overlay span {
  display: block;
  color: var(--muted);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.stack-meta {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
}

.stack-metric {
  padding: 12px 14px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.08);
  text-align: center;
}

html[data-theme="dark"] .stack-metric {
  background: rgba(255, 255, 255, 0.03);
}

.stack-metric span {
  display: block;
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.stack-metric strong {
  display: block;
  font-size: 14px;
  font-weight: 650;
  line-height: 1.35;
  word-break: break-word;
}

.results-head {
  justify-content: space-between;
  margin-bottom: 16px;
}

.results-head .panel-heading {
  margin-bottom: 0;
}

.results-list {
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.result-card {
  padding: 14px;
  border-radius: var(--radius-lg);
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.08);
}

html[data-theme="dark"] .result-card {
  background: rgba(255, 255, 255, 0.03);
}

.result-preview img {
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
  border-radius: 18px;
  background:
    linear-gradient(45deg, rgba(127, 127, 127, 0.12) 25%, transparent 25%),
    linear-gradient(-45deg, rgba(127, 127, 127, 0.12) 25%, transparent 25%),
    linear-gradient(45deg, transparent 75%, rgba(127, 127, 127, 0.12) 75%),
    linear-gradient(-45deg, transparent 75%, rgba(127, 127, 127, 0.12) 75%);
  background-size: 18px 18px;
  background-position:
    0 0,
    0 9px,
    9px -9px,
    -9px 0;
}

.result-meta {
  display: grid;
  gap: 6px;
  margin-top: 12px;
}

.result-meta strong {
  font-size: 14px;
  word-break: break-word;
}

.result-meta span {
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 0.04em;
}

.result-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.result-tags span {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  background: var(--accent-soft);
  color: var(--accent);
  font-size: 11px;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

html[data-theme="dark"] .result-tags span {
  color: #f0f0f2;
}

.result-actions {
  margin-top: 12px;
}

.result-actions a {
  width: 100%;
}

.danger {
  color: #d33;
}

@keyframes ripplePulse {
  0% {
    opacity: 0.7;
    transform: translate(-50%, -50%) scale(0);
  }
  100% {
    opacity: 0;
    transform: translate(-50%, -50%) scale(16);
  }
}

@media (max-width: 1320px) {
  .app-shell {
    min-height: unset;
  }

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

  .source-list,
  .results-list {
    overflow: visible;
  }
}

@media (max-width: 760px) {
  .app-shell {
    width: min(100vw - 18px, 1440px);
    padding: 16px 0 24px;
  }

  .topbar,
  .summary-strip,
  .panel {
    border-radius: 24px;
  }

  .topbar,
  .summary-strip,
  .panel {
    box-shadow: var(--shadow-soft);
  }

  .topbar,
  .summary-strip,
  .settings-grid,
  .preset-list {
    grid-template-columns: 1fr;
  }

  .topbar,
  .panel-heading,
  .group-heading,
  .results-head,
  .compact-form,
  .settings-actions,
  .topbar-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-shell,
  .hero-shell h1,
  .hero-copy {
    text-align: center;
  }

  .summary-strip {
    display: grid;
  }

  .summary-item {
    border-right: 0;
    border-bottom: 1px solid rgba(127, 127, 127, 0.12);
  }

  .summary-item:last-child {
    border-bottom: 0;
  }

  .button,
  .mode-pill {
    width: 100%;
  }

  .mode-switch {
    display: grid;
    grid-template-columns: 1fr;
  }

  .compact-form-single .field {
    max-width: none;
  }
}