:root {
  --radius: 1rem;
  --background: 0 0% 0%;
  --foreground: 0 0% 100%;
  --foreground-soft: 0 0% 80%;
  --foreground-muted: 0 0% 60%;
  --foreground-faint: 0 0% 50%;
  --glass-light: 0 0% 100%;
  color-scheme: dark;
  font-family: "Poppins", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  margin: 0;
  overflow-x: hidden;
  color: hsl(var(--foreground));
  background: hsl(var(--background));
}

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

button,
a,
.drop-zone {
  transition: color 180ms ease, opacity 180ms ease, transform 180ms ease;
}

button:hover,
a:hover,
.drop-zone:hover {
  transform: scale(1.02);
}

button:active,
a:active,
.drop-zone:active {
  transform: scale(0.98);
}

.video-background {
  position: fixed;
  inset: 0;
  z-index: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.background-vignette {
  position: fixed;
  inset: 0;
  z-index: 1;
  background:
    radial-gradient(circle at 62% 10%, hsl(0 0% 100% / 0.12), transparent 24rem),
    linear-gradient(90deg, hsl(0 0% 0% / 0.72), hsl(0 0% 0% / 0.32) 45%, hsl(0 0% 0% / 0.62)),
    linear-gradient(180deg, hsl(0 0% 0% / 0.2), hsl(0 0% 0% / 0.7));
  pointer-events: none;
}

.landing-shell {
  position: relative;
  z-index: 10;
  display: flex;
  min-height: 100vh;
  padding: 136px 24px 24px;
}

.left-panel,
.right-panel {
  min-height: calc(100vh - 48px);
}

.left-panel {
  position: relative;
  display: flex;
  flex: 0 0 52%;
  flex-direction: column;
  padding: clamp(22px, 3vw, 42px);
  border-radius: 32px;
}

.right-panel {
  display: flex;
  flex: 0 0 48%;
  flex-direction: column;
  gap: 16px;
  padding: 8px 0 8px 24px;
}

#standardize,
#advancedSettings,
#compare,
#debug {
  scroll-margin-top: 148px;
}

.liquid-glass,
.liquid-glass-strong {
  position: relative;
  overflow: hidden;
  border: none;
  background: hsl(var(--glass-light) / 0.01);
  background-blend-mode: luminosity;
  box-shadow: inset 0 1px 1px hsl(var(--glass-light) / 0.1);
  backdrop-filter: blur(4px);
}

.liquid-glass::before,
.liquid-glass-strong::before {
  position: absolute;
  inset: 0;
  padding: 1.4px;
  border-radius: inherit;
  content: "";
  background: linear-gradient(
    180deg,
    hsl(var(--glass-light) / 0.45) 0%,
    hsl(var(--glass-light) / 0.15) 20%,
    transparent 40%,
    transparent 60%,
    hsl(var(--glass-light) / 0.15) 80%,
    hsl(var(--glass-light) / 0.45) 100%
  );
  pointer-events: none;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}

.liquid-glass-strong {
  box-shadow: 4px 4px 4px hsl(var(--background) / 0.05), inset 0 1px 1px hsl(var(--glass-light) / 0.15);
  backdrop-filter: blur(50px);
}

.liquid-glass-strong::before {
  background: linear-gradient(
    180deg,
    hsl(var(--glass-light) / 0.5) 0%,
    hsl(var(--glass-light) / 0.2) 20%,
    transparent 40%,
    transparent 60%,
    hsl(var(--glass-light) / 0.2) 80%,
    hsl(var(--glass-light) / 0.5) 100%
  );
}

.top-nav,
.brand-mark,
.nav-actions,
.actions,
.button-stack,
.result-heading,
.preview-header,
.preview-pane-header,
.download-row {
  display: flex;
  align-items: center;
}

.top-nav,
.actions,
.result-heading,
.preview-header,
.preview-pane-header {
  justify-content: space-between;
}

.brand-mark {
  gap: 12px;
  color: hsl(var(--foreground));
  font-size: 1.35rem;
  font-weight: 600;
  letter-spacing: -0.06em;
  text-decoration: none;
}

.top-nav {
  position: fixed;
  top: 24px;
  left: 24px;
  right: 24px;
  z-index: 40;
  min-height: 94px;
  border-radius: 30px;
  padding: 14px 34px;
  background: hsl(var(--background) / 0.22);
  box-shadow: inset 0 1px 1px hsl(var(--foreground) / 0.14);
  backdrop-filter: blur(36px);
}

.top-nav::before {
  position: absolute;
  inset: 0;
  padding: 1.4px;
  border-radius: inherit;
  content: "";
  background: linear-gradient(
    180deg,
    hsl(var(--glass-light) / 0.48) 0%,
    hsl(var(--glass-light) / 0.14) 32%,
    transparent 58%,
    hsl(var(--glass-light) / 0.26) 100%
  );
  pointer-events: none;
  -webkit-mask: linear-gradient(#fff 0 0) content-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  mask-composite: exclude;
}

.brand-logo,
.button-icon,
.drop-icon,
.hero-orb {
  display: grid;
  place-items: center;
  border-radius: 999px;
  background: hsl(var(--foreground) / 0.12);
}

.brand-logo {
  width: 34px;
  height: 34px;
  font-size: 0.92rem;
}

.nav-actions {
  position: absolute;
  top: 50%;
  left: 50%;
  gap: 12px;
  justify-content: center;
  border-radius: 999px;
  padding: 8px;
  transform: translate(-50%, -50%);
  background: hsl(var(--foreground) / 0.05);
  backdrop-filter: blur(28px);
}

.nav-actions:hover,
.nav-actions:active {
  transform: translate(-50%, -50%);
}

.nav-orb {
  display: grid;
  width: clamp(56px, 6.8vw, 76px);
  height: clamp(56px, 6.8vw, 76px);
  place-items: center;
  border-radius: 999px;
  color: hsl(var(--foreground-soft));
  background: hsl(var(--foreground) / 0.08);
  box-shadow: inset 0 1px 1px hsl(var(--foreground) / 0.14);
  text-decoration: none;
}

.nav-orb span {
  font-size: 1.05rem;
  font-weight: 700;
  letter-spacing: -0.07em;
}

.nav-orb svg {
  width: 28px;
  height: 28px;
}

.nav-orb.is-active {
  color: hsl(0 0% 12%);
  background: linear-gradient(135deg, hsl(0 0% 100% / 0.88), hsl(0 0% 100% / 0.48));
}

.nav-orb:first-child {
  color: hsl(0 0% 100%);
  background: linear-gradient(135deg, hsl(132 48% 72%), hsl(138 38% 48%));
}

.nav-orb:hover {
  transform: scale(1.06);
}

.nav-pill,
.download-row a {
  border-radius: 999px;
  padding: 10px 16px;
  color: hsl(var(--foreground-soft));
  font-size: 0.82rem;
  font-weight: 500;
  text-decoration: none;
}

.hero-center {
  display: grid;
  flex: 1;
  align-content: center;
  max-width: 760px;
  margin: 0 auto;
  padding: 44px 0 24px;
}

.hero-orb {
  width: 80px;
  height: 80px;
  margin-bottom: 26px;
}

svg {
  width: 22px;
  height: 22px;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 1.9;
}

.hero-orb svg {
  width: 36px;
  height: 36px;
}

.eyebrow {
  margin: 0 0 14px;
  color: hsl(var(--foreground-faint));
  font-size: 0.76rem;
  font-weight: 600;
  letter-spacing: 0.28em;
  text-transform: uppercase;
}

h1,
h2,
h3 {
  font-weight: 500;
}

h1 {
  max-width: 720px;
  margin: 0;
  color: hsl(var(--foreground));
  font-size: clamp(3.3rem, 6.6vw, 6.8rem);
  line-height: 0.92;
  letter-spacing: -0.07em;
}

h1 em,
h2 em,
h3 em,
.quote-block em {
  color: hsl(var(--foreground-soft));
  font-family: "Source Serif 4", serif;
  font-style: italic;
  font-weight: 400;
}

.hero-copy {
  max-width: 680px;
  margin: 24px 0 28px;
  color: hsl(var(--foreground-soft));
  font-size: clamp(1rem, 1.6vw, 1.2rem);
  line-height: 1.72;
}

.control-form {
  display: grid;
  gap: 18px;
}

.drop-zone {
  display: flex;
  gap: 16px;
  align-items: center;
  min-height: 220px;
  border-radius: 28px;
  padding: 34px;
  color: hsl(var(--foreground));
  cursor: pointer;
}

.drop-zone input {
  display: none;
}

.drop-zone.is-dragging {
  transform: translateY(-3px) scale(1.01);
  background: hsl(var(--foreground) / 0.07);
}

.drop-icon {
  flex: 0 0 auto;
  width: 54px;
  height: 54px;
  color: hsl(var(--foreground));
}

.button-icon {
  flex: 0 0 auto;
  width: 44px;
  height: 44px;
  color: hsl(var(--foreground));
}

.drop-zone strong {
  display: block;
  font-size: 1.25rem;
  font-weight: 600;
}

.drop-zone small {
  display: block;
  margin-top: 4px;
  color: hsl(var(--foreground-muted));
  font-size: 0.92rem;
}

.config-panel {
  border-radius: 28px;
}

.config-panel summary {
  display: flex;
  gap: 16px;
  align-items: center;
  justify-content: space-between;
  min-height: 72px;
  padding: 0 18px;
  color: hsl(var(--foreground));
  cursor: pointer;
  list-style: none;
}

.config-panel summary::-webkit-details-marker {
  display: none;
}

.config-panel summary strong,
.config-panel summary small {
  display: block;
}

.config-panel summary strong {
  font-size: 1rem;
  font-weight: 600;
}

.config-panel summary small {
  margin-top: 3px;
  color: hsl(var(--foreground-muted));
  font-size: 0.78rem;
}

.chevron-icon {
  flex: 0 0 auto;
  width: 28px;
  height: 28px;
  color: hsl(var(--foreground-soft));
  transition: transform 180ms ease;
}

.config-panel[open] .chevron-icon {
  transform: rotate(180deg);
}

.configuration {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  padding: 0 18px 18px;
}

.settings-action {
  display: flex;
  align-items: end;
}

.settings-action .secondary-button {
  width: 100%;
}

label {
  display: grid;
  gap: 7px;
  color: hsl(var(--foreground-muted));
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

input,
select,
textarea {
  width: 100%;
  min-height: 44px;
  border: 0;
  border-radius: 16px;
  padding: 0 14px;
  color: hsl(var(--foreground));
  background: hsl(var(--foreground) / 0.1);
  outline: none;
  box-shadow: inset 0 1px 1px hsl(var(--foreground) / 0.1);
  font-size: 0.92rem;
  font-weight: 500;
  letter-spacing: 0;
  text-transform: none;
}

input:focus,
select:focus,
textarea:focus {
  box-shadow: 0 0 0 2px hsl(var(--foreground) / 0.26), inset 0 1px 1px hsl(var(--foreground) / 0.1);
}

select option {
  color: hsl(0 0% 8%);
  background: hsl(0 0% 96%);
}

.field-hint {
  color: hsl(var(--foreground-faint));
  font-size: 0.7rem;
  font-weight: 400;
  letter-spacing: 0;
  line-height: 1.35;
  text-transform: none;
}

.actions {
  gap: 18px;
  justify-content: flex-end;
}

.checkbox {
  display: flex;
  grid-template-columns: none;
  gap: 10px;
  align-items: center;
  color: hsl(var(--foreground-soft));
  font-size: 0.86rem;
  letter-spacing: 0;
  text-transform: none;
}

.preview-options {
  display: grid;
  gap: 10px;
  justify-items: end;
}

.preview-options .checkbox {
  min-height: 42px;
  border-radius: 999px;
  padding: 8px 14px;
  color: hsl(var(--foreground));
}

.checkbox input {
  width: 18px;
  min-height: 18px;
  accent-color: hsl(var(--foreground));
}

.button-stack {
  gap: 12px;
  justify-content: flex-end;
}

button {
  min-height: 52px;
  border: 0;
  color: hsl(var(--foreground));
  cursor: pointer;
  font-weight: 600;
}

button:disabled {
  cursor: progress;
  opacity: 0.58;
}

.primary-button,
.secondary-button {
  display: inline-flex;
  gap: 12px;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  padding: 0 22px;
}

.secondary-button {
  color: hsl(var(--foreground-soft));
  background: transparent;
}

.quote-block {
  display: grid;
  gap: 8px;
  justify-items: center;
  color: hsl(var(--foreground-soft));
  text-align: center;
}

.quote-block span {
  color: hsl(var(--foreground-faint));
  font-size: 0.72rem;
  letter-spacing: 0.26em;
}

.quote-block p {
  margin: 0;
  font-size: clamp(1.1rem, 2vw, 1.45rem);
}

.preview-card {
  flex: 1;
  min-height: 0;
  border-radius: 34px;
  padding: 18px;
}

.preview-header {
  gap: 20px;
  margin-bottom: 16px;
}

.preview-header h2,
.result-heading h2 {
  margin: 0;
  color: hsl(var(--foreground));
  font-size: clamp(1.4rem, 2.6vw, 2.35rem);
  letter-spacing: -0.05em;
}

.preview-header small {
  max-width: 300px;
  color: hsl(var(--foreground-muted));
  font-size: 0.78rem;
  line-height: 1.55;
  text-align: right;
}

.preview-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
  height: calc(100% - 90px);
  min-height: 440px;
}

.preview-pane {
  display: flex;
  min-width: 0;
  min-height: 0;
  flex-direction: column;
  border-radius: 26px;
}

.preview-pane-header {
  gap: 12px;
  padding: 14px 16px;
}

.preview-pane-header strong {
  font-size: 0.9rem;
  font-weight: 600;
}

.preview-pane-header span {
  max-width: 56%;
  color: hsl(var(--foreground-muted));
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
  font-size: 0.72rem;
}

.preview-surface {
  flex: 1;
  min-height: 380px;
  overflow: auto;
  border-radius: 22px;
  margin: 0 10px 10px;
  color: hsl(0 0% 8%);
  background: hsl(0 0% 100% / 0.9);
}

.empty-preview,
.preview-loading {
  display: grid;
  place-items: center;
  padding: 24px;
  color: hsl(var(--foreground-faint));
  background: hsl(var(--foreground) / 0.06);
  font-weight: 500;
  text-align: center;
}

.preview-frame {
  width: 100%;
  height: 100%;
  min-height: inherit;
  border: 0;
  background: hsl(0 0% 100%);
}

.docx-preview {
  max-width: 760px;
  margin: 0 auto;
  padding: 34px;
  color: hsl(0 0% 8%);
  font-family: Georgia, "Times New Roman", serif;
  font-size: 0.98rem;
  line-height: 1.48;
}

.docx-preview table {
  width: 100%;
  border-collapse: collapse;
}

.docx-preview td {
  vertical-align: top;
}

.text-preview {
  min-height: 100%;
  max-height: none;
  margin: 0;
  border-radius: 0;
  color: hsl(0 0% 8%);
  background: hsl(0 0% 100%);
}

.result-card {
  border-radius: 30px;
  padding: 18px;
}

.progress-shell {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: hsl(var(--foreground) / 0.1);
}

.progress-bar {
  width: 0%;
  height: 100%;
  border-radius: inherit;
  background: hsl(var(--foreground) / 0.82);
  transition: width 240ms ease;
}

dl {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin: 16px 0;
}

dt {
  color: hsl(var(--foreground-faint));
  font-size: 0.66rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

dd {
  margin: 5px 0 0;
  color: hsl(var(--foreground));
  overflow-wrap: anywhere;
  font-size: 0.84rem;
  font-weight: 500;
}

.download-row {
  flex-wrap: wrap;
  gap: 8px;
}

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

.final-actions a {
  color: hsl(var(--foreground));
  text-decoration: none;
}

.final-actions .button-icon {
  width: 34px;
  height: 34px;
}

pre {
  min-height: 140px;
  max-height: 220px;
  overflow: auto;
  margin: 0;
  border-radius: 22px;
  padding: 16px;
  color: hsl(var(--foreground-soft));
  background: hsl(var(--background) / 0.34);
  font-size: 0.76rem;
  line-height: 1.55;
  white-space: pre-wrap;
}

@media (max-width: 1180px) {
  .landing-shell {
    flex-direction: column;
    gap: 18px;
  }

  .left-panel,
  .right-panel {
    min-height: auto;
    flex: 1 1 auto;
  }

  .right-panel {
    padding: 0;
  }

  .preview-card {
    min-height: 720px;
  }
}

@media (max-width: 760px) {
  .landing-shell {
    padding: 126px 14px 14px;
  }

  .top-nav {
    top: 12px;
    left: 14px;
    right: 14px;
    min-height: 96px;
    padding: 10px 14px;
  }

  .actions,
  .preview-header,
  .result-heading {
    align-items: flex-start;
    flex-direction: column;
  }

  .button-stack,
  .button-stack {
    width: 100%;
  }

  .nav-actions {
    width: auto;
    gap: 8px;
    padding: 6px;
  }

  .nav-orb {
    width: 52px;
    height: 52px;
  }

  .nav-orb svg {
    width: 23px;
    height: 23px;
  }

  .brand-mark span:last-child {
    display: none;
  }

  #standardize,
  #advancedSettings,
  #compare,
  #debug {
    scroll-margin-top: 136px;
  }

  .nav-pill,
  .primary-button,
  .secondary-button {
    width: 100%;
  }

  .configuration,
  .preview-grid,
  .final-actions,
  dl {
    grid-template-columns: 1fr;
  }

  .preview-header small {
    max-width: none;
    text-align: left;
  }

  .preview-options {
    justify-items: stretch;
    width: 100%;
  }

  .preview-card {
    min-height: auto;
  }

  .preview-grid {
    height: auto;
    min-height: 0;
  }

  .preview-surface {
    min-height: 420px;
  }

  h1 {
    font-size: clamp(3rem, 14vw, 4.6rem);
  }
}