/* Folio product site. Colours come from the app icon: the midnight tile,
   the paper page and the blue bookmark ribbon. */

:root {
  --night: #0f141d;
  --night-raised: #1a2130;
  --night-text: #c9d0dc;
  --paper: #f4f5f7;
  --paper-raised: #ffffff;
  --ink: #161a22;
  --slate: #586172;
  --rule: #dde1e7;
  --ribbon: #1f6ff2;
  --ribbon-deep: #1557c7;
  --ribbon-light: #7fb0ff;

  --serif: "Literata", Georgia, serif;
  --sans: "Schibsted Grotesk", system-ui, sans-serif;

  --gutter: clamp(16px, 5vw, 48px);
  --max: 1160px;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font: 17px/1.6 var(--sans);
  -webkit-font-smoothing: antialiased;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

a {
  color: var(--ribbon-deep);
  text-underline-offset: 3px;
}

:focus-visible {
  outline: 2px solid var(--ribbon);
  outline-offset: 3px;
  border-radius: 4px;
}

h1,
h2,
h3 {
  font-family: var(--serif);
  font-weight: 600;
  line-height: 1.15;
  letter-spacing: -0.01em;
  margin: 0;
  text-wrap: balance;
}

p {
  margin: 0;
}

kbd {
  font: 500 0.82em/1 var(--sans);
  padding: 0.2em 0.45em;
  border: 1px solid var(--rule);
  border-bottom-width: 2px;
  border-radius: 5px;
  background: var(--paper-raised);
  white-space: nowrap;
}

code {
  font: 0.88em/1 ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.skip {
  position: absolute;
  left: -9999px;
}
.skip:focus {
  left: 16px;
  top: 16px;
  z-index: 10;
  background: var(--paper-raised);
  padding: 8px 12px;
}

/* ─── Night sections (hero, closing call to action) ─────────────────────── */

.night {
  background: var(--night);
  color: var(--night-text);
}
.night h1,
.night h2 {
  color: #fff;
}
.night a {
  color: var(--ribbon-light);
}

/* ─── Header ────────────────────────────────────────────────────────────── */

.site-header {
  position: relative;
  display: flex;
  align-items: center;
  gap: 32px;
  height: 76px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font: 600 22px/1 var(--serif);
  color: inherit;
  text-decoration: none;
}
.night .brand {
  color: #fff;
}
.brand img {
  width: 36px;
  height: 36px;
  margin: -4px;
}

.site-nav {
  display: flex;
  gap: 24px;
  font-size: 15px;
}
.site-nav a {
  color: inherit;
  text-decoration: none;
}
.site-nav a:hover,
.site-nav a[aria-current="page"] {
  text-decoration: underline;
}

/* ─── The ribbon: the bookmark from the icon, hanging from the top edge ─── */

.ribbon {
  position: absolute;
  top: 0;
  right: var(--gutter);
  z-index: 2;
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
  width: 248px;
  padding: 26px 22px 54px;
  background: var(--ribbon);
  color: #fff !important;
  text-decoration: none;
  clip-path: polygon(0 0, 100% 0, 100% 100%, 50% calc(100% - 30px), 0 100%);
  box-shadow: inset 0 -1px 0 rgba(255, 255, 255, 0.1);
  transition: background 0.15s, padding 0.2s;
}
.ribbon:hover {
  background: var(--ribbon-deep);
  padding-top: 32px;
}
.ribbon:focus-visible {
  outline-color: #fff;
  outline-offset: -6px;
}
.ribbon-action {
  font: 600 24px/1.1 var(--serif);
}
.ribbon-detail {
  margin-top: 6px;
  font-size: 14px;
  line-height: 1.35;
  opacity: 0.88;
}

@media (prefers-reduced-motion: no-preference) {
  .ribbon {
    animation: ribbon-drop 0.7s cubic-bezier(0.2, 1.3, 0.4, 1) 0.25s both;
  }
  @keyframes ribbon-drop {
    from {
      transform: translateY(-100%);
    }
  }
}

/* ─── Hero ──────────────────────────────────────────────────────────────── */

.hero {
  overflow: hidden;
}
.hero-inner {
  position: relative;
}

.hero-text {
  max-width: 820px;
  padding: clamp(40px, 9vw, 104px) 0 clamp(40px, 6vw, 64px);
}

.hero h1 {
  font-size: clamp(40px, 6.4vw, 76px);
  font-weight: 500;
  letter-spacing: -0.025em;
}

.hero-lede {
  margin-top: 24px;
  max-width: 34em;
  font-size: clamp(17px, 1.6vw, 20px);
  line-height: 1.55;
}

.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 8px 24px;
  margin-top: 28px;
  font-size: 15px;
}
.hero-links .demo-link {
  font-weight: 600;
}

.shot-frame {
  border-radius: 12px 12px 0 0;
  overflow: hidden;
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-bottom: 0;
  box-shadow: 0 -20px 80px rgba(31, 111, 242, 0.16);
}
.shot-frame img,
.shot-frame video {
  display: block;
  width: 100%;
  height: auto;
}

/* ─── Feature spreads ───────────────────────────────────────────────────── */

.spreads {
  padding: clamp(64px, 10vw, 128px) 0 0;
}

.spread {
  display: grid;
  grid-template-columns: minmax(0, 5fr) minmax(0, 7fr);
  gap: clamp(32px, 5vw, 72px);
  align-items: center;
  margin-bottom: clamp(72px, 11vw, 136px);
}
.spread.flip {
  grid-template-columns: minmax(0, 7fr) minmax(0, 5fr);
}
.spread.flip .spread-text {
  order: 2;
}

.spread h2 {
  font-size: clamp(30px, 3.6vw, 42px);
}
.spread-text p {
  margin-top: 18px;
  color: var(--slate);
  max-width: 30em;
}
.spread-text ul {
  margin: 20px 0 0;
  padding: 0;
  list-style: none;
  color: var(--slate);
}
.spread-text li {
  padding: 10px 0;
  border-top: 1px solid var(--rule);
}
.spread-text li strong {
  color: var(--ink);
  font-weight: 600;
}

.spread-shot {
  border-radius: 10px;
  overflow: hidden;
  border: 1px solid var(--rule);
  box-shadow: 0 24px 60px -24px rgba(15, 20, 29, 0.35);
}

/* ─── Renders what you write: a two-column list of formats ──────────────── */

.formats {
  padding: clamp(64px, 9vw, 112px) 0;
  border-top: 1px solid var(--rule);
}
.formats h2 {
  font-size: clamp(30px, 3.6vw, 42px);
  max-width: 16em;
}
.formats-intro {
  margin-top: 18px;
  color: var(--slate);
  max-width: 36em;
}
.format-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  column-gap: clamp(32px, 6vw, 96px);
  margin: 40px 0 0;
}
.format-list div {
  padding: 18px 0;
  border-top: 1px solid var(--rule);
}
.format-list dt {
  font: 600 19px/1.3 var(--serif);
}
.format-list dd {
  margin: 6px 0 0;
  color: var(--slate);
  font-size: 16px;
}

/* ─── Keyboard ──────────────────────────────────────────────────────────── */

.keys {
  padding: 0 0 clamp(64px, 9vw, 112px);
}
.keys h2 {
  font-size: clamp(30px, 3.6vw, 42px);
}
.key-table {
  margin-top: 32px;
  width: 100%;
  max-width: 720px;
  border-collapse: collapse;
  font-size: 16px;
}
.key-table th,
.key-table td {
  text-align: left;
  font-weight: 400;
  padding: 12px 0;
  border-top: 1px solid var(--rule);
  vertical-align: top;
}
.key-table th {
  width: 45%;
  padding-right: 24px;
  white-space: nowrap;
}
.key-table td {
  color: var(--slate);
}

/* ─── Closing call to action ────────────────────────────────────────────── */

.closing {
  padding: clamp(64px, 9vw, 112px) 0;
}
.closing h2 {
  font-size: clamp(34px, 4.6vw, 56px);
  font-weight: 500;
}
.closing p {
  margin-top: 16px;
  max-width: 34em;
}

.button {
  display: inline-flex;
  flex-direction: column;
  gap: 2px;
  margin-top: 32px;
  padding: 14px 26px;
  border-radius: 8px;
  background: var(--ribbon);
  color: #fff !important;
  text-decoration: none;
  transition: background 0.15s;
}
.button:hover {
  background: var(--ribbon-deep);
}
.button-action {
  font-weight: 600;
  font-size: 18px;
}
.button-detail {
  font-size: 14px;
  opacity: 0.88;
}

.alt-link {
  margin-top: 14px;
  font-size: 15px;
  color: var(--slate);
}
.night .alt-link {
  color: inherit;
}
.alt-link[hidden] {
  display: none;
}

/* ─── Footer ────────────────────────────────────────────────────────────── */

.site-footer {
  padding: 32px 0 48px;
  font-size: 14px;
  color: var(--slate);
  border-top: 1px solid var(--rule);
}
.night + .site-footer {
  border-top: 0;
}
.site-footer .wrap {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px 32px;
}
.site-footer a {
  color: inherit;
}

/* ─── Download page ─────────────────────────────────────────────────────── */

.dl-head {
  padding: clamp(48px, 8vw, 96px) 0 clamp(40px, 6vw, 72px);
}
.dl-head h1 {
  font-size: clamp(40px, 6vw, 68px);
  font-weight: 500;
  letter-spacing: -0.025em;
}
.dl-version {
  margin-top: 12px;
  font-size: 17px;
}
.dl-demo {
  margin-top: 8px;
  font-size: 15px;
}
.dl-status {
  margin-top: 20px;
  max-width: 36em;
  padding: 14px 18px;
  border-left: 3px solid var(--ribbon-light);
  background: var(--night-raised);
}
.dl-status[hidden] {
  display: none;
}

.builds {
  margin-top: clamp(48px, 7vw, 80px);
}
.builds h2,
.install h2,
.more h2 {
  font-size: clamp(26px, 3vw, 34px);
}

.build-list {
  list-style: none;
  margin: 24px 0 0;
  padding: 0;
  border-bottom: 1px solid var(--rule);
}
.build {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: center;
  gap: 8px 24px;
  padding: 20px 0 20px 0;
  border-top: 1px solid var(--rule);
}
.build-name {
  font: 600 20px/1.3 var(--serif);
}
.build-meta {
  margin-top: 2px;
  font-size: 15px;
  color: var(--slate);
  overflow-wrap: anywhere;
}
.build-get {
  padding: 10px 18px;
  border: 1px solid var(--ribbon);
  border-radius: 8px;
  font-weight: 600;
  font-size: 15px;
  text-decoration: none;
  white-space: nowrap;
}
.build-get:hover {
  background: var(--ribbon);
  color: #fff;
}
.build-get[aria-disabled="true"],
.build.is-yours .build-get[aria-disabled="true"] {
  border-color: var(--rule);
  background: none;
  color: var(--slate);
  font-weight: 500;
  cursor: default;
}

/* The build that matches this computer gets the bookmark */
.build.is-yours {
  padding-left: 44px;
}
.build.is-yours::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0;
  width: 22px;
  height: 52px;
  background: var(--ribbon);
  clip-path: polygon(0 0, 100% 0, 100% 100%, 50% calc(100% - 9px), 0 100%);
}
.build.is-yours .build-get {
  background: var(--ribbon);
  color: #fff;
}
.build.is-yours .build-get:hover {
  background: var(--ribbon-deep);
  border-color: var(--ribbon-deep);
}
.yours-note {
  display: none;
  font-size: 14px;
  color: var(--ribbon-deep);
  font-weight: 600;
}
.build.is-yours .yours-note {
  display: block;
}

.install {
  margin-top: clamp(56px, 8vw, 96px);
}
.install-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 32px clamp(24px, 4vw, 48px);
  margin-top: 28px;
}
.install h3 {
  font-size: 20px;
  padding-top: 14px;
  border-top: 2px solid var(--ink);
}
.install ol {
  margin: 12px 0 0;
  padding-left: 1.2em;
  color: var(--slate);
  font-size: 16px;
}
.install li + li {
  margin-top: 8px;
}
.install .req {
  margin-top: 14px;
  font-size: 14px;
  color: var(--slate);
}

.more {
  margin: clamp(56px, 8vw, 96px) 0 clamp(64px, 9vw, 112px);
}
.more p {
  margin-top: 14px;
  max-width: 40em;
  color: var(--slate);
}

/* ─── Narrow screens ────────────────────────────────────────────────────── */

@media (max-width: 900px) {
  .spread,
  .spread.flip {
    grid-template-columns: minmax(0, 1fr);
  }
  .spread.flip .spread-text {
    order: 0;
  }
  .install-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}

@media (max-width: 720px) {
  body {
    font-size: 16px;
  }
  .site-header {
    gap: 20px;
  }
  .site-nav {
    gap: 16px;
  }
  .site-nav .wide-only {
    display: none;
  }
  .ribbon {
    position: static;
    width: auto;
    margin-top: 28px;
    padding: 16px 20px;
    border-radius: 8px;
    clip-path: none;
    animation: none;
  }
  .ribbon:hover {
    padding-top: 16px;
  }
  .hero-inner {
    display: flex;
    flex-direction: column;
  }
  .hero-inner .ribbon {
    order: 2;
    margin: 0 0 40px;
  }
  .hero-inner .shot-frame {
    order: 3;
  }
  .hero-text {
    padding: 32px 0 28px;
  }
  .format-list {
    grid-template-columns: minmax(0, 1fr);
  }
  .key-table th {
    white-space: normal;
  }
  .build {
    grid-template-columns: minmax(0, 1fr);
  }
  .build-get {
    justify-self: start;
  }
}

/* The ribbon sits inside the header on wide screens; keep the nav clear of it */
@media (min-width: 721px) {
  .hero .site-header {
    padding-right: 268px;
  }
}

/* Phones: the nav doesn't fit beside the brand, so it takes a line of its own */
@media (max-width: 440px) {
  .site-header {
    flex-wrap: wrap;
    gap: 6px 16px;
    height: auto;
    padding: 18px 0 8px;
  }
}