:root {
  color-scheme: dark;
  --bg: #050b16;
  --bg-soft: #0a1424;
  --card: rgba(15, 23, 42, 0.78);
  --card-strong: rgba(15, 23, 42, 0.94);
  --border: rgba(148, 163, 184, 0.17);
  --text: #edf5ff;
  --muted: #8ea3bd;
  --muted-strong: #cbd8e8;
  --primary: #38bdf8;
  --primary-dark: #2563eb;
  --success: #34d399;
  --danger: #fb7185;
  --editor: #07101d;
  --shadow: 0 26px 90px rgba(0, 0, 0, 0.38);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background:
    linear-gradient(135deg, rgba(56, 189, 248, 0.12), transparent 28%),
    radial-gradient(circle at 85% 8%, rgba(129, 140, 248, 0.22), transparent 30rem),
    radial-gradient(circle at 10% 15%, rgba(14, 165, 233, 0.18), transparent 34rem),
    var(--bg);
  color: var(--text);
  font-family: Inter, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  background-image: linear-gradient(rgba(255, 255, 255, 0.035) 1px, transparent 1px), linear-gradient(90deg, rgba(255, 255, 255, 0.035) 1px, transparent 1px);
  background-size: 42px 42px;
  mask-image: linear-gradient(to bottom, black, transparent 72%);
}

button,
textarea {
  font: inherit;
}

code,
textarea,
.line-numbers {
  font-family: "JetBrains Mono", Consolas, "Courier New", monospace;
}

.page-shell {
  position: relative;
  width: min(1520px, calc(100% - 32px));
  margin: 0 auto;
  padding: 16px 0 26px;
}

.hero {
  padding: 10px 0 18px;
}

.nav,
.nav-links,
.toolbar,
.bottom-bar,
.editor-header,
.toolbar-actions,
.meta-grid,
.bottom-actions,
.hero-actions {
  display: flex;
  align-items: center;
}

.nav {
  justify-content: space-between;
  margin-bottom: 28px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 1.08rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-mark {
  display: grid;
  width: 42px;
  height: 42px;
  place-items: center;
  border: 1px solid var(--border);
  border-radius: 15px;
  background: rgba(255, 255, 255, 0.07);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.12);
}

.nav-links {
  gap: 10px;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 6px;
  background: rgba(255, 255, 255, 0.05);
}

.nav-links span {
  border-radius: 999px;
  padding: 8px 13px;
  color: var(--muted-strong);
  font-size: 0.85rem;
  font-weight: 700;
}

.nav-links span:first-child {
  color: #04111f;
  background: #bae6fd;
}

.hero-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 360px;
  gap: 18px;
  align-items: end;
}

.hero-content {
  max-width: 900px;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--primary);
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 12px;
  font-size: clamp(2.35rem, 5.6vw, 4.6rem);
  line-height: 0.98;
  letter-spacing: -0.06em;
}

.hero-copy {
  max-width: 700px;
  margin-bottom: 16px;
  color: var(--muted-strong);
  font-size: 1rem;
  line-height: 1.6;
}

.hero-actions {
  gap: 12px;
  flex-wrap: wrap;
}

.quick-card {
  padding: 16px;
}

.quick-label {
  display: inline-block;
  margin-bottom: 10px;
  color: var(--primary);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

.quick-card ol {
  display: grid;
  gap: 8px;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: steps;
}

.quick-card li {
  position: relative;
  min-height: 40px;
  padding: 10px 10px 10px 48px;
  border: 1px solid var(--border);
  border-radius: 16px;
  color: var(--muted-strong);
  background: rgba(255, 255, 255, 0.04);
  counter-increment: steps;
}

.quick-card li::before {
  content: counter(steps);
  position: absolute;
  left: 12px;
  top: 7px;
  display: grid;
  width: 28px;
  height: 28px;
  place-items: center;
  border-radius: 10px;
  color: #03111f;
  background: linear-gradient(135deg, #7dd3fc, #34d399);
  font-weight: 900;
}

.workspace {
  display: grid;
  gap: 14px;
}

.card {
  border: 1px solid var(--border);
  border-radius: 26px;
  background: linear-gradient(180deg, rgba(15, 23, 42, 0.88), rgba(15, 23, 42, 0.68));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.toolbar,
.bottom-bar {
  justify-content: space-between;
  gap: 14px;
  padding: 14px;
}

.toolbar h2,
.editor-header h3 {
  margin-bottom: 4px;
  font-size: 1.02rem;
}

.toolbar p,
.editor-header p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.toolbar-actions,
.bottom-actions {
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.toggle {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 40px;
  border: 1px solid var(--border);
  border-radius: 15px;
  padding: 0 14px;
  color: var(--muted-strong);
  background: rgba(255, 255, 255, 0.055);
  cursor: pointer;
  user-select: none;
}

.toggle input {
  width: 16px;
  height: 16px;
  accent-color: var(--primary);
}

.btn {
  min-height: 40px;
  border: 0;
  border-radius: 15px;
  padding: 0 17px;
  color: var(--text);
  font-weight: 800;
  cursor: pointer;
  transition: transform 160ms ease, box-shadow 160ms ease, background 160ms ease, border-color 160ms ease;
}

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

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.6;
  transform: none;
}

.btn.primary {
  color: #03111f;
  background: linear-gradient(135deg, #7dd3fc, #38bdf8 45%, #34d399);
  box-shadow: 0 16px 34px rgba(56, 189, 248, 0.22);
}

.btn.secondary,
.btn.ghost {
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.06);
}

.btn.ghost {
  color: var(--muted-strong);
}

.btn.format {
  color: #04120d;
  background: linear-gradient(135deg, #86efac, #34d399);
  box-shadow: 0 16px 34px rgba(5, 150, 105, 0.22);
}

.editor-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
}

.editor-card {
  min-width: 0;
  overflow: hidden;
}

.editor-header {
  justify-content: space-between;
  gap: 14px;
  padding: 18px 18px 14px;
}

.badge {
  border: 1px solid rgba(56, 189, 248, 0.28);
  border-radius: 999px;
  color: #bae6fd;
  background: rgba(14, 165, 233, 0.1);
  padding: 8px 13px;
  font-size: 0.8rem;
  font-weight: 800;
}

.badge.success {
  border-color: rgba(52, 211, 153, 0.26);
  color: #bbf7d0;
  background: rgba(34, 197, 94, 0.1);
}

.badge.error {
  border-color: rgba(251, 113, 133, 0.32);
  color: #fecdd3;
  background: rgba(244, 63, 94, 0.12);
}

.editor-wrap {
  display: grid;
  grid-template-columns: 0 1fr;
  height: min(48vh, 520px);
  min-height: 340px;
  border-top: 1px solid var(--border);
  background:
    linear-gradient(180deg, rgba(15, 23, 42, 0.42), transparent),
    var(--editor);
  transition: grid-template-columns 160ms ease;
}

body.show-lines .editor-wrap {
  grid-template-columns: 64px 1fr;
}

.line-numbers {
  margin: 0;
  overflow: hidden;
  padding: 18px 10px;
  border-right: 1px solid var(--border);
  color: #64748b;
  background: rgba(2, 6, 23, 0.52);
  font-size: 0.92rem;
  line-height: 1.55;
  text-align: right;
  user-select: none;
  white-space: pre;
}

textarea {
  width: 100%;
  height: 100%;
  resize: none;
  border: 0;
  outline: 0;
  overflow: auto;
  padding: 18px;
  color: #dbeafe;
  background: transparent;
  font-size: 0.92rem;
  line-height: 1.55;
  tab-size: 2;
  white-space: pre;
  word-break: normal;
  overflow-wrap: normal;
}

textarea::placeholder {
  color: #64748b;
}

textarea:focus {
  box-shadow: inset 0 0 0 1px rgba(56, 189, 248, 0.22);
}

.bottom-bar {
  position: sticky;
  bottom: 16px;
  z-index: 2;
}

.meta-grid {
  gap: 16px;
  flex-wrap: wrap;
}

.meta-label {
  display: block;
  margin-bottom: 3px;
  color: var(--muted);
  font-size: 0.76rem;
  font-weight: 800;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.meta-grid strong {
  display: block;
  max-width: 180px;
  overflow: hidden;
  color: var(--muted-strong);
  text-overflow: ellipsis;
  white-space: nowrap;
}

@media (max-width: 1100px) {
  .hero-layout {
    grid-template-columns: 1fr;
  }

  .quick-card {
    max-width: 720px;
  }
}

@media (max-width: 980px) {
  .toolbar,
  .bottom-bar {
    align-items: flex-start;
    flex-direction: column;
  }

  .toolbar-actions,
  .bottom-actions {
    justify-content: flex-start;
  }

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

  .bottom-bar {
    position: static;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 20px, 1520px);
    padding-top: 10px;
  }

  .nav {
    align-items: flex-start;
    flex-direction: column;
    gap: 14px;
    margin-bottom: 22px;
  }

  .nav-links {
    width: 100%;
    justify-content: space-between;
  }

  .nav-links span {
    flex: 1;
    text-align: center;
  }

  h1 {
    font-size: clamp(2.25rem, 13vw, 3.5rem);
  }

  .btn,
  .toggle {
    width: 100%;
    justify-content: center;
  }

  .toolbar-actions,
  .bottom-actions,
  .hero-actions {
    width: 100%;
  }

  body.show-lines .editor-wrap {
    grid-template-columns: 48px 1fr;
  }

  textarea,
  .line-numbers {
    font-size: 0.82rem;
  }
}

/* Feature controls */
.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.theme-btn {
  min-height: 38px;
  border: 1px solid var(--border);
  border-radius: 15px;
  padding: 0 14px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.07);
  cursor: pointer;
  font-weight: 800;
  transition: transform 160ms ease, background 160ms ease;
}

.theme-btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.12);
}

.utility-grid {
  display: grid;
  grid-template-columns: minmax(280px, 0.8fr) minmax(320px, 1.2fr);
  gap: 14px;
}

.drop-zone {
  display: grid;
  min-height: 138px;
  place-items: center;
  padding: 18px;
  text-align: center;
  cursor: pointer;
  transition: border-color 160ms ease, transform 160ms ease, background 160ms ease;
}

.drop-zone input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

.drop-zone.dragging,
.drop-zone:hover {
  border-color: rgba(56, 189, 248, 0.58);
  background: rgba(14, 165, 233, 0.12);
  transform: translateY(-1px);
}

.drop-icon {
  display: grid;
  width: 44px;
  height: 44px;
  margin-bottom: 10px;
  place-items: center;
  border-radius: 15px;
  color: #04111f;
  background: linear-gradient(135deg, #7dd3fc, #34d399);
  font-size: 1.55rem;
  font-weight: 900;
}

.drop-title {
  display: block;
  margin-bottom: 4px;
  font-weight: 900;
}

.drop-copy {
  color: var(--muted);
  font-size: 0.9rem;
}

.search-card {
  display: grid;
  align-content: center;
  gap: 12px;
  min-height: 138px;
  padding: 18px;
}

.search-card h3 {
  margin-bottom: 4px;
  font-size: 1rem;
}

.search-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.search-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto auto;
  gap: 10px;
}

.search-row input {
  min-height: 40px;
  min-width: 0;
  border: 1px solid var(--border);
  border-radius: 14px;
  outline: none;
  padding: 0 13px;
  color: var(--text);
  background: rgba(255, 255, 255, 0.06);
}

.search-row input:focus {
  border-color: rgba(56, 189, 248, 0.58);
}

.btn.compact {
  padding-inline: 13px;
}

.search-count {
  color: var(--muted-strong);
  font-size: 0.86rem;
  font-weight: 700;
}


.toast-stack {
  position: fixed;
  top: 18px;
  right: 18px;
  z-index: 50;
  display: grid;
  gap: 10px;
  width: min(360px, calc(100vw - 32px));
  pointer-events: none;
}

.toast {
  transform: translateY(-8px);
  opacity: 0;
  border: 1px solid rgba(52, 211, 153, 0.28);
  border-radius: 16px;
  padding: 13px 14px;
  color: #dcfce7;
  background: rgba(6, 78, 59, 0.94);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.3);
  font-weight: 800;
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.error {
  border-color: rgba(251, 113, 133, 0.34);
  color: #ffe4e6;
  background: rgba(127, 29, 29, 0.94);
}

.toast.show {
  transform: translateY(0);
  opacity: 1;
}

body.light-theme {
  color-scheme: light;
  --bg: #edf4fb;
  --bg-soft: #f8fafc;
  --card: rgba(255, 255, 255, 0.78);
  --card-strong: rgba(255, 255, 255, 0.95);
  --border: rgba(15, 23, 42, 0.12);
  --text: #0f172a;
  --muted: #64748b;
  --muted-strong: #334155;
  --editor: #ffffff;
  --shadow: 0 22px 70px rgba(15, 23, 42, 0.12);
  background:
    linear-gradient(135deg, rgba(14, 165, 233, 0.12), transparent 28%),
    radial-gradient(circle at 85% 8%, rgba(129, 140, 248, 0.18), transparent 30rem),
    radial-gradient(circle at 10% 15%, rgba(14, 165, 233, 0.14), transparent 34rem),
    var(--bg);
}

body.light-theme .card {
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(248, 250, 252, 0.8));
}

body.light-theme .editor-wrap,
body.light-theme .line-numbers {
  background: #f8fafc;
}

body.light-theme textarea,
body.light-theme .search-row input {
  color: #0f172a;
}

body.light-theme textarea::placeholder {
  color: #94a3b8;
}

body.light-theme .btn.secondary,
body.light-theme .btn.ghost,
body.light-theme .toggle,
body.light-theme .theme-btn,
body.light-theme .nav-links,
body.light-theme .quick-card li,
body.light-theme .search-row input {
  background: rgba(15, 23, 42, 0.04);
}

@media (max-width: 980px) {
  .utility-grid,
}

@media (max-width: 640px) {
  .nav-actions {
    width: 100%;
    align-items: stretch;
    flex-direction: column;
  }

  .theme-btn {
    width: 100%;
  }

  .utility-grid,
  .search-row {
    grid-template-columns: 1fr;
  }
}

/* Compact layout requested */
.compact-hero {
  padding: 6px 0 10px;
}

.compact-nav {
  margin-bottom: 10px;
}

.compact-title {
  max-width: 100%;
}

.compact-title .eyebrow {
  margin-bottom: 4px;
  font-size: 0.72rem;
}

.compact-title h1 {
  max-width: none;
  margin-bottom: 4px;
  font-size: clamp(1.45rem, 3vw, 2.35rem);
  line-height: 1.08;
  letter-spacing: -0.035em;
}

.compact-title .hero-copy {
  max-width: none;
  margin-bottom: 0;
  font-size: 0.9rem;
  line-height: 1.35;
}

.main-actions {
  align-items: center;
}

.big-action {
  min-height: 52px;
  padding-inline: 28px;
  font-size: 1rem;
}

.single-upload {
  grid-template-columns: 1fr;
}

.compact-drop {
  display: flex;
  min-height: 72px;
  align-items: center;
  justify-content: center;
  gap: 12px;
  padding: 12px 18px;
}

.compact-drop .drop-icon {
  width: 36px;
  height: 36px;
  margin-bottom: 0;
  font-size: 1.2rem;
}

.compact-drop .drop-title,
.compact-drop .drop-copy {
  display: inline;
  margin: 0;
}

.large-editors .editor-wrap {
  height: min(64vh, 760px);
  min-height: 520px;
}

@media (max-width: 980px) {
  .large-editors .editor-wrap {
    height: 52vh;
    min-height: 420px;
  }
}

@media (max-width: 640px) {
  .compact-drop {
    align-items: center;
    flex-direction: column;
    min-height: 100px;
  }

  .big-action {
    min-height: 48px;
  }
}

.file-input {
  position: absolute;
  width: 1px;
  height: 1px;
  opacity: 0;
  pointer-events: none;
}

/* Final compact UX pass */
.page-shell {
  width: min(1360px, calc(100% - 28px));
  padding: 12px 0 18px;
}

.brand {
  gap: 9px;
  font-size: 1rem;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  overflow: hidden;
  background: transparent;
  box-shadow: 0 10px 24px rgba(52, 211, 153, 0.16);
}

.brand-mark svg {
  display: block;
  width: 100%;
  height: 100%;
}

.compact-nav {
  margin-bottom: 8px;
}

.compact-hero {
  padding: 4px 0 8px;
}

.compact-title .eyebrow {
  margin-bottom: 3px;
  font-size: 0.66rem;
  letter-spacing: 0.1em;
}

.compact-title h1 {
  margin-bottom: 3px;
  font-size: clamp(1.15rem, 2.2vw, 1.8rem);
  letter-spacing: -0.025em;
}

.compact-title .hero-copy {
  font-size: 0.84rem;
  line-height: 1.3;
}

.workspace {
  gap: 10px;
}

.card {
  border-radius: 18px;
  box-shadow: 0 18px 52px rgba(0, 0, 0, 0.24);
}

.toolbar,
.bottom-bar {
  gap: 10px;
  padding: 10px 12px;
}

.toolbar h2,
.editor-header h3 {
  margin-bottom: 2px;
  font-size: 0.95rem;
}

.toolbar p,
.editor-header p {
  font-size: 0.82rem;
}

.toolbar-actions,
.bottom-actions {
  gap: 8px;
}

.btn,
.toggle,
.theme-btn {
  min-height: 36px;
  border-radius: 12px;
  padding-inline: 12px;
  font-size: 0.86rem;
}

.big-action {
  min-height: 42px;
  padding-inline: 20px;
  font-size: 0.94rem;
}

.editor-header {
  padding: 12px 14px 10px;
}

.badge {
  padding: 6px 10px;
  font-size: 0.74rem;
}

.large-editors .editor-wrap {
  height: min(58vh, 620px);
  min-height: 440px;
}

textarea,
.line-numbers {
  font-size: 0.86rem;
  line-height: 1.48;
}

textarea {
  padding: 14px;
}

.line-numbers {
  padding: 14px 8px;
}

.meta-label {
  margin-bottom: 2px;
  font-size: 0.68rem;
}

.meta-grid strong {
  font-size: 0.86rem;
}

@media (max-width: 980px) {
  .large-editors .editor-wrap {
    min-height: 380px;
  }
}

@media (max-width: 640px) {
  .page-shell {
    width: min(100% - 18px, 1360px);
  }

  .compact-title h1 {
    font-size: 1.35rem;
  }
}

.main-actions {
  justify-content: flex-end;
}

.main-actions .toolbar-actions {
  width: 100%;
}

.brand-mark img {
  display: block;
  width: 100%;
  height: 100%;
}

.toolbar-spacer {
  flex: 1 1 auto;
  min-width: 12px;
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.48;
  transform: none;
  box-shadow: none;
}

#objectSummary {
  max-width: 260px;
}

@media (max-width: 760px) {
  .toolbar-spacer {
    display: none;
  }
}