:root {
  color-scheme: light;
  --ink: #17313b;
  --muted: #5b6f78;
  --line: #d9e4e8;
  --paper: #fbfcf7;
  --surface: #ffffff;
  --soft: #edf7f6;
  --teal: #176b87;
  --teal-dark: #0f4d61;
  --coral: #e76f51;
  --gold: #f2b84b;
  --green: #5a9367;
  --shadow: 0 18px 45px rgba(23, 49, 59, 0.12);
  --radius: 8px;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
}

a {
  color: var(--teal-dark);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px clamp(16px, 4vw, 48px);
  border-bottom: 1px solid rgba(23, 49, 59, 0.12);
  background: rgba(251, 252, 247, 0.94);
  backdrop-filter: blur(12px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--ink);
  min-width: 220px;
}

.brand:hover {
  text-decoration: none;
}

.brand-mark {
  display: grid;
  place-items: center;
  width: 38px;
  height: 38px;
  border-radius: 8px;
  background: var(--teal);
  color: #fff;
  font-weight: 800;
  overflow: hidden;
  box-shadow: 0 6px 14px rgba(23, 49, 59, 0.14);
}

.brand-mark img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.brand strong,
.brand small {
  display: block;
}

.brand small {
  color: var(--muted);
  font-size: 0.78rem;
}

.top-nav,
.site-footer nav,
.inline-links {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 12px;
}

.top-nav a {
  color: var(--ink);
  font-size: 0.94rem;
  font-weight: 650;
}

main {
  min-height: calc(100vh - 220px);
}

.shell {
  width: min(1160px, calc(100% - 32px));
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(300px, 0.95fr);
  gap: clamp(24px, 5vw, 56px);
  align-items: center;
  padding: clamp(36px, 7vw, 76px) 0 32px;
}

.hero h1,
.page-title h1 {
  margin: 0;
  max-width: 830px;
  font-size: clamp(2.3rem, 7vw, 5.6rem);
  line-height: 0.96;
  letter-spacing: 0;
}

.hero p,
.page-title p,
.lead {
  max-width: 680px;
  color: var(--muted);
  font-size: 1.08rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 26px;
}

.hero-proof {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
  margin-top: 28px;
}

.proof-tile,
.metric-tile,
.tool-card,
.guide-card,
.panel,
.callout,
.notice,
.stat-row {
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.proof-tile {
  padding: 14px;
}

.proof-tile strong,
.metric-tile strong {
  display: block;
  font-size: 1.32rem;
}

.proof-tile span,
.metric-tile span {
  color: var(--muted);
  font-size: 0.88rem;
}

.hero-preview {
  position: relative;
  display: grid;
  gap: 14px;
}

.hero-image {
  display: block;
  overflow: hidden;
  aspect-ratio: 16 / 9;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}

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

.paper-stack {
  position: relative;
  aspect-ratio: 0.78;
  max-height: 520px;
  padding: 20px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background:
    linear-gradient(90deg, rgba(23, 107, 135, 0.08) 1px, transparent 1px),
    linear-gradient(rgba(23, 107, 135, 0.08) 1px, transparent 1px),
    #fff;
  background-size: 28px 28px;
  box-shadow: var(--shadow);
}

.sample-sheet {
  height: 100%;
  padding: 24px;
  border: 2px solid var(--ink);
  background: #fffefa;
}

.sample-sheet h2 {
  margin: 0 0 18px;
  font-size: clamp(1.4rem, 4vw, 2.6rem);
}

.sample-lines {
  display: grid;
  gap: 12px;
  margin-top: 20px;
}

.sample-line {
  height: 42px;
  border-bottom: 2px dashed rgba(23, 49, 59, 0.35);
}

.section {
  padding: 36px 0;
}

.section-head {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  align-items: end;
  margin-bottom: 18px;
}

.section-head h2,
.tool-header h1,
.article h1,
.dashboard h1 {
  margin: 0;
  font-size: clamp(1.8rem, 4vw, 3rem);
  line-height: 1.05;
}

.section-head p {
  margin: 8px 0 0;
  color: var(--muted);
  max-width: 660px;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

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

.tool-card,
.guide-card,
.panel {
  padding: 18px;
}

.tool-card {
  display: flex;
  flex-direction: column;
  min-height: 260px;
}

.tool-card .icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 12px;
  border-radius: 8px;
  background: var(--soft);
  color: var(--teal-dark);
  font-size: 1.5rem;
  font-weight: 800;
}

.tool-card h3,
.guide-card h3 {
  margin: 0 0 8px;
  font-size: 1.22rem;
}

.tool-card p,
.guide-card p,
.panel p,
.article p,
.article li {
  color: var(--muted);
}

.tool-card .button,
.tool-card .meta {
  margin-top: auto;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 10px 14px;
  border: 1px solid var(--teal);
  border-radius: 8px;
  background: var(--teal);
  color: #fff;
  font-weight: 750;
  cursor: pointer;
  text-decoration: none;
}

.button:hover {
  background: var(--teal-dark);
  text-decoration: none;
}

.button.secondary {
  background: #fff;
  color: var(--teal-dark);
}

.button.secondary:hover {
  background: var(--soft);
}

.button.ghost {
  border-color: var(--line);
  background: transparent;
  color: var(--ink);
}

.button[disabled] {
  cursor: not-allowed;
  opacity: 0.58;
}

.meta {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 12px;
}

.tag {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 4px 9px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: #fff;
  color: var(--muted);
  font-size: 0.82rem;
}

.tool-layout {
  display: grid;
  grid-template-columns: minmax(320px, 0.82fr) minmax(360px, 1.18fr);
  gap: 22px;
  align-items: start;
  padding: 28px 0 42px;
}

.tool-header {
  padding: 32px 0 0;
}

.tool-form {
  position: sticky;
  top: 86px;
}

.form-grid {
  display: grid;
  gap: 14px;
}

.field {
  display: grid;
  gap: 7px;
}

.field label {
  font-weight: 750;
}

.field input,
.field select,
.field textarea {
  width: 100%;
  min-height: 42px;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
}

.field textarea {
  min-height: 102px;
  resize: vertical;
}

.help {
  color: var(--muted);
  font-size: 0.86rem;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.counter {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 9px 11px;
  border-radius: 8px;
  background: var(--soft);
  color: var(--teal-dark);
  font-weight: 750;
}

.preview-wrap {
  display: grid;
  gap: 14px;
}

.preview-toolbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}

.preview-stage {
  overflow: auto;
  padding: 18px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #e8eef0;
}

canvas.preview-canvas {
  display: block;
  width: 100%;
  max-width: 760px;
  height: auto;
  margin: 0 auto;
  border-radius: 4px;
  background: #fff;
  box-shadow: 0 12px 24px rgba(23, 49, 59, 0.16);
}

.notice,
.callout,
.download-complete {
  padding: 14px;
}

.notice {
  border-color: rgba(231, 111, 81, 0.35);
  background: #fff5f1;
  color: #7b341f;
}

.callout {
  background: var(--soft);
}

.download-complete {
  display: grid;
  gap: 12px;
  border: 1px solid rgba(90, 147, 103, 0.34);
  border-radius: var(--radius);
  background: #f4faf2;
}

.download-complete[hidden] {
  display: none;
}

.download-complete strong {
  display: block;
  margin-bottom: 3px;
}

.next-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.placeholder-ad,
.ad-wrap {
  display: grid;
  place-items: center;
  min-height: 92px;
  border: 1px dashed #a8bdc3;
  border-radius: var(--radius);
  background: rgba(255, 255, 255, 0.58);
  color: var(--muted);
  text-align: center;
  font-size: 0.88rem;
}

.ad-wrap {
  gap: 8px;
  padding: 10px;
  border-style: solid;
  background: #fff;
}

.ad-wrap span {
  color: var(--muted);
  font-size: 0.74rem;
  text-transform: uppercase;
}

.ad-wrap .adsbygoogle {
  width: 100%;
  min-height: 90px;
}

.article-shell {
  width: min(860px, calc(100% - 32px));
  margin: 0 auto;
  padding: 34px 0 56px;
}

.article {
  font-size: 1.02rem;
}

.article h2 {
  margin-top: 34px;
  font-size: 1.55rem;
}

.article h3 {
  margin-top: 24px;
}

.article ul,
.article ol {
  padding-left: 22px;
}

.article-card-list {
  display: grid;
  gap: 14px;
  margin-top: 22px;
}

.guide-card {
  display: block;
  color: var(--ink);
}

.guide-card:hover {
  text-decoration: none;
  border-color: var(--teal);
}

.keyword-cluster {
  display: grid;
  gap: 12px;
}

.keyword-cluster h3,
.keyword-cluster p {
  margin: 0;
}

.cluster-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.cluster-links a {
  display: inline-flex;
  align-items: center;
  min-height: 34px;
  padding: 7px 10px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--teal-dark);
  font-size: 0.9rem;
  font-weight: 700;
}

.cluster-links a:hover {
  border-color: var(--teal);
  text-decoration: none;
}

.ai-panel {
  display: grid;
  gap: 10px;
  margin-top: 14px;
  padding: 14px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
}

.ai-panel[hidden] {
  display: none;
}

.ai-panel strong {
  display: block;
}

.idea-list {
  display: grid;
  gap: 8px;
}

.idea-button {
  display: grid;
  gap: 4px;
  width: 100%;
  padding: 10px 12px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--paper);
  color: var(--ink);
  cursor: pointer;
  text-align: left;
}

.idea-button:hover {
  border-color: var(--teal);
  background: var(--soft);
}

.idea-button span {
  font-weight: 750;
}

.idea-button small {
  color: var(--muted);
}

.dashboard {
  padding: 34px 0 56px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin: 20px 0;
}

.metric-grid.compact {
  margin-top: 12px;
}

.metric-remote {
  display: grid;
  gap: 14px;
}

.metric-tile {
  padding: 16px;
}

.event-table {
  width: 100%;
  border-collapse: collapse;
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
}

.event-table th,
.event-table td {
  padding: 10px;
  border-bottom: 1px solid var(--line);
  text-align: left;
  font-size: 0.9rem;
  vertical-align: top;
}

.event-table th {
  background: var(--soft);
  color: var(--teal-dark);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 28px clamp(16px, 4vw, 48px);
  border-top: 1px solid var(--line);
  background: #fff;
}

.site-footer p {
  margin: 6px 0 0;
  color: var(--muted);
}

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

@media (max-width: 920px) {
  .site-header,
  .site-footer {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero,
  .tool-layout,
  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .tool-form {
    position: static;
  }

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

@media (max-width: 620px) {
  .brand {
    min-width: 0;
  }

  .top-nav {
    gap: 9px;
  }

  .top-nav a {
    font-size: 0.86rem;
  }

  .hero-proof,
  .metric-grid {
    grid-template-columns: 1fr;
  }

  .section-head,
  .preview-toolbar {
    align-items: flex-start;
    flex-direction: column;
  }

  .hero h1,
  .page-title h1 {
    font-size: clamp(2.1rem, 13vw, 3.5rem);
  }
}