/*
 * Officewrite project site.
 *
 * The palette is Word's own: the #2B579A brand blue on the chrome, the warm
 * grey neutrals Office uses for surfaces (#F3F2F1, #FAF9F8), and Segoe UI —
 * so the site looks like it belongs to the application it is advertising
 * rather than to a generic landing-page template.
 */

:root {
  --word-blue: #2b579a;
  --word-blue-dark: #204072;
  --word-blue-light: #e8eef7;
  --accent: #185abd;

  --ink: #201f1e;
  --ink-soft: #484644;
  --ink-faint: #797775;

  --surface: #ffffff;
  --surface-alt: #faf9f8;
  --surface-sunk: #f3f2f1;
  --line: #e1dfdd;

  --radius: 4px;
  --shadow-card: 0 1.6px 3.6px rgba(0, 0, 0, 0.09), 0 0.3px 0.9px rgba(0, 0, 0, 0.07);
  --shadow-lift: 0 6.4px 14.4px rgba(0, 0, 0, 0.12), 0 1.2px 3.6px rgba(0, 0, 0, 0.09);

  --font: "Segoe UI", -apple-system, BlinkMacSystemFont, "Helvetica Neue", Arial, sans-serif;
  --mono: "Cascadia Mono", Consolas, "SFMono-Regular", monospace;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 72px;
}

body {
  margin: 0;
  font-family: var(--font);
  font-size: 16px;
  line-height: 1.6;
  color: var(--ink);
  background: var(--surface);
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3 {
  line-height: 1.2;
  margin: 0 0 12px;
  font-weight: 600;
}

h1 {
  font-size: clamp(2.1rem, 4.6vw, 3.2rem);
  letter-spacing: -0.02em;
}

h2 {
  font-size: clamp(1.5rem, 2.6vw, 2rem);
  letter-spacing: -0.01em;
}

h3 {
  font-size: 1.06rem;
}

p {
  margin: 0 0 14px;
}

a {
  color: var(--accent);
  text-decoration-color: rgba(24, 90, 189, 0.35);
  text-underline-offset: 2px;
}

a:hover {
  text-decoration-color: currentColor;
}

code {
  font-family: var(--mono);
  font-size: 0.9em;
  background: var(--surface-sunk);
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 0.5px 5px;
}

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

/* Top bar — the Word title-bar blue ------------------------------------ */
.topbar {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 0 20px;
  height: 56px;
  background: var(--word-blue);
  color: #fff;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-weight: 600;
  font-size: 1.02rem;
  text-decoration: none;
}

.brand-logo {
  border-radius: 3px;
}

.topnav {
  display: flex;
  align-items: center;
  gap: 4px;
  flex-wrap: wrap;
}

.topnav a {
  color: #eef3fb;
  text-decoration: none;
  font-size: 0.92rem;
  padding: 6px 10px;
  border-radius: var(--radius);
}

.topnav a:hover {
  background: rgba(255, 255, 255, 0.14);
  color: #fff;
}

.topnav .topnav-cta {
  background: #fff;
  color: var(--word-blue);
  font-weight: 600;
  margin-left: 6px;
}

.topnav .topnav-cta:hover {
  background: #eef3fb;
  color: var(--word-blue-dark);
}

/* Hero ------------------------------------------------------------------ */
.hero {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: 48px;
  align-items: center;
  max-width: 1240px;
  margin: 0 auto;
  padding: 64px 24px 56px;
}

.eyebrow {
  display: inline-block;
  margin: 0 0 14px;
  padding: 4px 10px;
  font-size: 0.78rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: var(--word-blue);
  background: var(--word-blue-light);
  border-radius: 999px;
}

.lede {
  font-size: 1.1rem;
  color: var(--ink-soft);
  max-width: 46ch;
}

.cta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 22px 0 10px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 11px 20px;
  border-radius: var(--radius);
  font-size: 0.97rem;
  font-weight: 600;
  text-decoration: none;
  border: 1px solid transparent;
  cursor: pointer;
  transition: background 0.14s ease, border-color 0.14s ease;
}

.btn-primary {
  background: var(--word-blue);
  color: #fff;
}

.btn-primary:hover {
  background: var(--word-blue-dark);
}

.btn-ghost {
  background: #fff;
  color: var(--word-blue);
  border-color: #c7c6c4;
}

.btn-ghost:hover {
  background: var(--surface-sunk);
  border-color: var(--word-blue);
}

.btn-lg {
  padding: 14px 30px;
  font-size: 1.04rem;
}

.download-meta {
  font-size: 0.86rem;
  color: var(--ink-faint);
  margin: 0 0 20px;
}

.hero-facts {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 8px;
  font-size: 0.94rem;
  color: var(--ink-soft);
}

.hero-facts li {
  padding-left: 24px;
  position: relative;
}

/* A tick, drawn rather than an emoji, so it matches the palette. */
.hero-facts li::before {
  content: "";
  position: absolute;
  left: 4px;
  top: 0.55em;
  width: 10px;
  height: 5px;
  border-left: 2px solid var(--word-blue);
  border-bottom: 2px solid var(--word-blue);
  transform: rotate(-45deg);
}

.hero-shot,
.tour-stage {
  margin: 0;
}

.hero-shot img,
.tour-stage img {
  width: 100%;
  height: auto;
  display: block;
  border: 1px solid var(--line);
  border-radius: 6px;
  box-shadow: var(--shadow-lift);
}

.hero-shot figcaption,
.tour-stage figcaption {
  margin-top: 10px;
  font-size: 0.85rem;
  color: var(--ink-faint);
  text-align: center;
}

/* Sections -------------------------------------------------------------- */
.panel {
  max-width: 1160px;
  margin: 0 auto;
  padding: 62px 24px;
}

.panel.alt {
  max-width: none;
  background: var(--surface-alt);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.panel.alt > * {
  max-width: 1160px;
  margin-left: auto;
  margin-right: auto;
}

.section-lede {
  font-size: 1.04rem;
  color: var(--ink-soft);
  max-width: 66ch;
  margin-bottom: 26px;
}

/* Tour — tabs styled after the ribbon's own tab strip -------------------- */
.tour-tabs {
  display: flex;
  flex-wrap: wrap;
  gap: 2px;
  border-bottom: 1px solid var(--line);
  margin-bottom: 20px;
}

.tour-tabs button {
  appearance: none;
  border: 0;
  background: none;
  font-family: inherit;
  font-size: 0.93rem;
  color: var(--ink-soft);
  padding: 9px 14px;
  border-radius: var(--radius) var(--radius) 0 0;
  border-bottom: 2px solid transparent;
  cursor: pointer;
}

.tour-tabs button:hover {
  background: var(--surface-sunk);
  color: var(--ink);
}

.tour-tabs button[aria-selected="true"] {
  color: var(--word-blue);
  border-bottom-color: var(--word-blue);
  font-weight: 600;
}

.tour-tabs button:focus-visible,
.btn:focus-visible,
.topnav a:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 2px;
}

/* Cards ----------------------------------------------------------------- */
.cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(268px, 1fr));
  gap: 16px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--line);
  border-top: 3px solid var(--word-blue);
  border-radius: var(--radius);
  padding: 20px;
  box-shadow: var(--shadow-card);
}

.card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

.keyboard-note {
  margin-top: 22px;
  padding: 16px 18px;
  background: var(--word-blue-light);
  border-left: 3px solid var(--word-blue);
  border-radius: 0 var(--radius) var(--radius) 0;
  font-size: 0.95rem;
  color: var(--ink-soft);
}

/* Why ------------------------------------------------------------------- */
.why-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.15fr) minmax(0, 1fr);
  gap: 40px;
  align-items: start;
}

.compare {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.94rem;
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  overflow: hidden;
}

.compare th,
.compare td {
  padding: 10px 14px;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.compare thead th {
  background: var(--word-blue);
  color: #fff;
  font-weight: 600;
}

.compare tbody th {
  font-weight: 400;
  color: var(--ink-soft);
}

.compare tbody tr:nth-child(even) {
  background: var(--surface-alt);
}

.compare tbody tr:last-child th,
.compare tbody tr:last-child td {
  border-bottom: 0;
}

.compare .yes {
  color: #107c41; /* Office green, for the column that wins */
  font-weight: 600;
}

/* Code ------------------------------------------------------------------ */
.code-block {
  background: #1f1f1f;
  color: #e6e6e6;
  border-radius: var(--radius);
  padding: 16px 18px;
  overflow-x: auto;
  font-family: var(--mono);
  font-size: 0.9rem;
  line-height: 1.7;
  margin: 0 0 14px;
}

.code-block code {
  background: none;
  border: 0;
  padding: 0;
  color: inherit;
  font-size: inherit;
}

/* Download -------------------------------------------------------------- */
.download-panel {
  text-align: center;
}

.download-panel .section-lede {
  margin-left: auto;
  margin-right: auto;
}

.fine-print {
  font-size: 0.85rem;
  color: var(--ink-faint);
  margin-top: 14px;
}

/* Footer ---------------------------------------------------------------- */
.footer {
  background: var(--word-blue);
  color: #dce6f5;
  text-align: center;
  padding: 30px 24px;
  font-size: 0.9rem;
}

.footer a {
  color: #fff;
}

.footer .fine-print {
  color: #b9c9e4;
}

/* Responsive ------------------------------------------------------------ */
@media (max-width: 940px) {
  .hero,
  .why-grid {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .hero {
    padding-top: 40px;
  }

  .lede {
    max-width: none;
  }
}

@media (max-width: 620px) {
  .topbar {
    height: auto;
    flex-direction: column;
    align-items: flex-start;
    padding: 10px 16px;
  }

  .topnav {
    gap: 0;
  }

  .panel {
    padding: 44px 18px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  * {
    transition: none !important;
  }
}

/* Comparison table ------------------------------------------------------ */

/* The table is wider than a phone. Scroll it inside its own box so the page
   body never scrolls sideways — the same guard TC-UI-002 enforces in the app. */
.compare-wrap {
  overflow-x: auto;
  margin-top: 1.5rem;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--surface);
}

.compare-table {
  width: 100%;
  min-width: 40rem;
  border-collapse: collapse;
  font-size: 0.95rem;
}

.compare-table th,
.compare-table td {
  padding: 0.75rem 1rem;
  text-align: left;
  border-bottom: 1px solid var(--line);
}

.compare-table thead th {
  background: var(--surface-alt);
  font-weight: 600;
  color: var(--ink);
  white-space: nowrap;
}

/* The row label carries the question; keep it distinct from the answers. */
.compare-table tbody th {
  font-weight: 600;
  color: var(--ink-soft);
  white-space: nowrap;
}

/* Officewrite's own column — the one a reader is scanning for. */
.compare-table thead th:nth-child(2),
.compare-table tbody td:nth-child(1) {
  color: var(--word-blue);
}

.compare-table tbody tr:last-child th,
.compare-table tbody tr:last-child td {
  border-bottom: none;
}

/* Article lists --------------------------------------------------------- */

/* The content pages use ordinary prose lists. The reset strips list styling
   globally, so restore it here rather than fighting it inline. */
.plain-list {
  margin: 1rem 0 1.25rem;
  padding-left: 1.5rem;
  list-style: disc;
  color: var(--ink-soft);
  line-height: 1.7;
}

ol.plain-list {
  list-style: decimal;
}

.plain-list li {
  margin-bottom: 0.5rem;
}

.plain-list strong {
  color: var(--ink);
}

/* Prose inside the article panels needs breathing room the landing page
   sections get from their own spacing rules. */
.panel > h2 {
  margin-top: 2.25rem;
}

.panel > p {
  color: var(--ink-soft);
  line-height: 1.7;
  max-width: 62ch;
}