:root {
  --bg-0: #07111f;
  --bg-1: #0b1e31;
  --bg-2: #13304b;
  --card: rgba(10, 18, 31, 0.84);
  --card-strong: rgba(7, 13, 24, 0.94);
  --line: rgba(148, 163, 184, 0.18);
  --line-strong: rgba(125, 211, 252, 0.32);
  --text: #edf4ff;
  --muted: #9ab3cd;
  --accent: #7dd3fc;
  --accent-strong: #38bdf8;
  --success: #86efac;
  --danger: #fda4af;
  --shadow: 0 28px 90px rgba(0, 0, 0, 0.44);
  --radius-xl: 28px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  font-family: "Space Grotesk", sans-serif;
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.24), transparent 30%),
    radial-gradient(circle at bottom right, rgba(125, 211, 252, 0.16), transparent 28%),
    linear-gradient(148deg, var(--bg-0), var(--bg-1) 58%, var(--bg-2));
  overflow-x: hidden;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input,
select {
  font: inherit;
}

button {
  border: 0;
}

strong {
  font-weight: 700;
}

.bg-blob {
  position: fixed;
  border-radius: 999px;
  filter: blur(72px);
  pointer-events: none;
  z-index: 0;
}

.bg-blob-a {
  top: -80px;
  right: -90px;
  width: 320px;
  height: 320px;
  background: rgba(56, 189, 248, 0.25);
}

.bg-blob-b {
  left: -100px;
  bottom: -120px;
  width: 300px;
  height: 300px;
  background: rgba(125, 211, 252, 0.16);
}

.page-shell {
  position: relative;
  z-index: 1;
  width: min(1180px, calc(100vw - 22px));
  margin: 0 auto;
  padding: 14px 0 40px;
}

.card {
  border: 1px solid var(--line);
  border-radius: var(--radius-xl);
  background: linear-gradient(180deg, rgba(13, 23, 38, 0.9), rgba(6, 12, 21, 0.92));
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.site-header {
  position: sticky;
  top: 12px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 14px 18px;
  margin-bottom: 18px;
  z-index: 10;
  background: linear-gradient(180deg, rgba(10, 18, 31, 0.94), rgba(8, 14, 24, 0.96));
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-weight: 700;
  letter-spacing: -0.03em;
}

.brand-mark {
  width: 40px;
  height: 40px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  color: #04121f;
  background: linear-gradient(135deg, #a5f3fc, #38bdf8 60%, #60a5fa);
  box-shadow: 0 12px 26px rgba(56, 189, 248, 0.22);
}

.site-nav {
  display: flex;
  gap: 10px;
  overflow-x: auto;
  padding-bottom: 2px;
}

.site-nav::-webkit-scrollbar {
  display: none;
}

.nav-link {
  flex: 0 0 auto;
  padding: 12px 14px;
  border-radius: 14px;
  color: var(--muted);
  border: 1px solid transparent;
  transition: transform 180ms ease, background 180ms ease, color 180ms ease;
}

.nav-link:hover {
  transform: translateY(-1px);
  color: var(--text);
}

.nav-link.is-active {
  color: #04121f;
  background: linear-gradient(135deg, #a5f3fc, #38bdf8 60%, #60a5fa);
}

.page-main {
  display: grid;
  gap: 18px;
}

.page-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(250px, 0.65fr);
  gap: 20px;
  padding: 24px;
}

.eyebrow,
.section-tag {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  margin: 0;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--accent);
  font-size: 0.82rem;
}

.eyebrow::before,
.section-tag::before {
  content: "";
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 20px rgba(125, 211, 252, 0.8);
}

.hero-copy h1 {
  margin: 16px 0 14px;
  max-width: 12ch;
  font-size: clamp(2.6rem, 6vw, 5.3rem);
  line-height: 0.92;
  letter-spacing: -0.08em;
}

.lead {
  margin: 0;
  max-width: 65ch;
  color: var(--muted);
  line-height: 1.75;
}

.hero-metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 24px;
}

.hero-metrics article,
.mini-link-card,
.info-list p,
.history-item,
.status,
.drop-meta,
.reference-item {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.hero-metrics article {
  padding: 16px;
  border-radius: 20px;
}

.hero-metrics strong,
.mini-link-card strong,
.history-item strong,
.reference-item strong,
.empty-state strong {
  display: block;
  margin-bottom: 6px;
  font-size: 1rem;
}

.hero-metrics span,
.mini-link-card span,
.info-list p,
.history-meta,
.empty-state span,
.result-note,
.reference-item span {
  color: var(--muted);
  line-height: 1.55;
}

.hero-links {
  display: grid;
  gap: 12px;
  align-content: start;
}

.mini-link-card {
  padding: 18px;
  border-radius: 22px;
  transition: transform 180ms ease, border-color 180ms ease;
}

.mini-link-card:hover {
  transform: translateY(-1px);
  border-color: var(--line-strong);
}

.page-grid {
  display: grid;
  gap: 18px;
}

.docs-grid {
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.7fr);
}

.side-stack {
  display: grid;
  gap: 18px;
  align-content: start;
}

.preview-card {
  grid-column: 1 / -1;
}

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

.app-card,
.side-card {
  padding: 22px;
}

.section-head {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 14px;
  margin-bottom: 18px;
}

.section-head h2 {
  margin: 8px 0 0;
  font-size: 1.45rem;
  line-height: 1.12;
}

.section-head.compact {
  margin-bottom: 14px;
}

.pill {
  display: inline-flex;
  align-items: center;
  padding: 10px 14px;
  border-radius: 999px;
  color: var(--accent);
  border: 1px solid rgba(125, 211, 252, 0.24);
  background: rgba(125, 211, 252, 0.08);
  font-size: 0.9rem;
  white-space: nowrap;
}

.pill.subtle {
  color: var(--muted);
}

.dropzone {
  position: relative;
  display: grid;
  place-items: center;
  gap: 14px;
  min-height: 300px;
  padding: 26px 20px;
  border-radius: 24px;
  border: 1.5px dashed rgba(148, 163, 184, 0.36);
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.04), rgba(255, 255, 255, 0.02)),
    radial-gradient(circle at top, rgba(56, 189, 248, 0.12), transparent 58%);
  text-align: center;
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.dropzone.is-dragover,
.field.is-dragover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  background:
    linear-gradient(180deg, rgba(125, 211, 252, 0.1), rgba(255, 255, 255, 0.03)),
    radial-gradient(circle at top, rgba(56, 189, 248, 0.16), transparent 62%);
}

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

.drop-badge {
  min-width: 92px;
  padding: 18px 14px;
  border-radius: 24px;
  border: 1px solid rgba(125, 211, 252, 0.2);
  color: var(--accent);
  background: linear-gradient(180deg, rgba(56, 189, 248, 0.18), rgba(14, 165, 233, 0.06));
  font-weight: 700;
  letter-spacing: 0.08em;
}

.dropzone h3 {
  margin: 0;
  font-size: clamp(1.3rem, 2.2vw, 1.65rem);
}

.dropzone p {
  margin: 0;
  max-width: 56ch;
  color: var(--muted);
  line-height: 1.62;
}

.button-row {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

.button-row.left {
  justify-content: flex-start;
}

.button-primary,
.button-secondary,
.history-button,
.chip-button {
  cursor: pointer;
  transition: transform 180ms ease, opacity 180ms ease, border-color 180ms ease;
}

.button-primary,
.button-secondary,
.history-button {
  min-height: 48px;
  padding: 0 18px;
  border-radius: 16px;
}

.button-primary {
  color: #04121f;
  background: linear-gradient(135deg, #a5f3fc, #38bdf8 60%, #60a5fa);
  box-shadow: 0 12px 28px rgba(56, 189, 248, 0.2);
}

.button-secondary,
.history-button {
  color: var(--text);
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--line);
}

.button-primary:hover,
.button-secondary:hover,
.history-button:hover,
.chip-button:hover {
  transform: translateY(-1px);
}

.button-primary:disabled,
.button-secondary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  transform: none;
}

.drop-meta,
.status,
.field small {
  border-radius: 18px;
  padding: 14px 16px;
}

.drop-meta {
  min-width: min(100%, 360px);
  color: var(--muted);
}

.status {
  display: none;
  margin-top: 16px;
  line-height: 1.58;
}

.status.visible {
  display: block;
}

.status.success {
  color: #dcfce7;
  background: rgba(134, 239, 172, 0.08);
  border-color: rgba(134, 239, 172, 0.28);
}

.status.error {
  color: #ffe4e6;
  background: rgba(253, 164, 175, 0.08);
  border-color: rgba(253, 164, 175, 0.28);
}

.history-list {
  display: grid;
  gap: 12px;
}

.history-item {
  display: grid;
  gap: 12px;
  padding: 16px;
  border-radius: 20px;
}

.history-meta {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  font-size: 0.92rem;
}

.history-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.preview-frame,
.qr-stage {
  border-radius: 24px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.03);
  overflow: hidden;
}

.doc-preview {
  min-height: 480px;
  padding: 20px;
  background: #e8eef8;
  color: #111827;
}

.doc-preview .docx-wrapper {
  margin: 0 auto;
  box-shadow: 0 16px 48px rgba(15, 23, 42, 0.14);
}

.empty-state {
  min-height: 420px;
  display: grid;
  place-items: center;
  gap: 8px;
  padding: 28px;
  text-align: center;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.32);
}

.history-list .empty-state {
  min-height: 180px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
}

.history-list .empty-state span {
  color: var(--muted);
}

.info-list {
  display: grid;
  gap: 10px;
}

.info-list p {
  margin: 0;
  padding: 14px 16px;
  border-radius: 18px;
}

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

.conversion-grid {
  margin-top: 12px;
}

.field {
  display: grid;
  gap: 8px;
  padding: 14px;
  border-radius: 18px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.035);
}

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

.field span {
  font-size: 0.96rem;
}

.field input[type="text"],
.field input[type="number"],
.field select {
  width: 100%;
  min-height: 48px;
  padding: 0 14px;
  border-radius: 14px;
  border: 1px solid rgba(148, 163, 184, 0.22);
  background: rgba(6, 12, 21, 0.84);
  color: var(--text);
}

.field input[type="file"] {
  width: 100%;
  color: var(--muted);
}

.field input[type="color"] {
  width: 100%;
  height: 48px;
  padding: 6px;
  border-radius: 14px;
  border: 0;
  background: rgba(6, 12, 21, 0.84);
}

.field input[type="range"] {
  width: 100%;
}

.field output {
  color: var(--muted);
  font-size: 0.92rem;
}

.field small {
  margin: 0;
  color: var(--muted);
  line-height: 1.48;
}

.qr-stage {
  min-height: 520px;
  display: grid;
  place-items: center;
  padding: 24px;
  background:
    radial-gradient(circle at top, rgba(56, 189, 248, 0.1), transparent 45%),
    rgba(255, 255, 255, 0.03);
}

.qr-preview {
  width: 100%;
  display: grid;
  place-items: center;
}

.qr-preview canvas,
.qr-preview svg {
  width: min(100%, 420px) !important;
  height: auto !important;
}

.chip-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 18px;
}

.chip-button {
  min-height: 42px;
  padding: 0 14px;
  border-radius: 999px;
  color: var(--muted);
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.04);
}

.chip-button.is-active {
  color: #04121f;
  border-color: transparent;
  background: linear-gradient(135deg, #a5f3fc, #38bdf8 60%, #60a5fa);
}

.result-panel {
  padding: 20px;
  border-radius: 24px;
  border: 1px solid var(--line);
  background:
    radial-gradient(circle at top right, rgba(56, 189, 248, 0.12), transparent 46%),
    rgba(255, 255, 255, 0.04);
}

.result-label {
  margin: 0 0 8px;
  color: var(--muted);
}

.result-value {
  font-size: clamp(2rem, 5vw, 3.6rem);
  line-height: 1;
  letter-spacing: -0.05em;
  font-weight: 700;
}

.result-note {
  margin: 12px 0 0;
}

.reference-block {
  margin-top: 18px;
}

.reference-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
}

.reference-item {
  padding: 14px;
  border-radius: 18px;
}

.reference-item span {
  display: block;
  font-size: 0.93rem;
}

.button-primary:focus-visible,
.button-secondary:focus-visible,
.nav-link:focus-visible,
.chip-button:focus-visible,
.history-button:focus-visible,
.field input:focus-visible,
.field select:focus-visible {
  outline: 2px solid rgba(125, 211, 252, 0.82);
  outline-offset: 2px;
}

@media (max-width: 1040px) {
  .page-hero,
  .docs-grid,
  .qr-grid,
  .unit-grid {
    grid-template-columns: 1fr;
  }

  .hero-metrics,
  .reference-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .page-shell {
    width: min(100vw - 14px, 1180px);
    padding-top: 10px;
  }

  .site-header,
  .page-hero,
  .app-card,
  .side-card {
    padding: 16px;
  }

  .site-header {
    top: 8px;
    flex-direction: column;
    align-items: stretch;
  }

  .site-nav {
    width: 100%;
  }

  .nav-link {
    text-align: center;
  }

  .hero-copy h1 {
    max-width: none;
    font-size: clamp(2.2rem, 13vw, 3.2rem);
  }

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

  .button-row,
  .button-row.left,
  .history-actions {
    justify-content: stretch;
  }

  .button-primary,
  .button-secondary,
  .history-button,
  .chip-button {
    width: 100%;
  }

  .history-meta {
    flex-direction: column;
  }

  .doc-preview {
    min-height: 320px;
    padding: 12px;
  }

  .empty-state {
    min-height: 260px;
  }

  .qr-stage {
    min-height: 360px;
    padding: 16px;
  }

  .result-value {
    font-size: clamp(2rem, 12vw, 2.8rem);
  }
}