/* ============================================================
   Focusbox — marketing site
   "Quiet study" editorial, mirroring the app's design system.
   Display: Fraunces (serif) · UI: Hanken Grotesk · Data: system mono
   No build step, no JS, no dependencies.
   ============================================================ */

:root {
  --font-display: "Fraunces", Georgia, "Times New Roman", serif;
  --font-ui: "Hanken Grotesk", -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono: ui-monospace, "SF Mono", "JetBrains Mono", "Menlo", monospace;

  /* Warm paper, light — app tokens */
  --bg: #efe9dd;
  --bg-2: #e9e1d2;
  --paper: #fbf7ef;
  --ink: #2a2520;
  --ink-soft: #6b6256;
  --ink-faint: #a79c8c;
  --line: #ddd2bf;
  --line-strong: #c8bca6;
  --accent: #bf5a2f; /* burnt clay */
  --accent-deep: #a3491f;
  --accent-soft: rgba(191, 90, 47, 0.14);
  --on-accent: #fdf7ef;
  --sage: #6f7d5c;
  --shadow: 0 8px 30px -12px rgba(60, 40, 20, 0.28);
  --shadow-lg: 0 40px 80px -40px rgba(60, 40, 20, 0.5);
  --grain-opacity: 0.04;

  --maxw: 1120px;
  --gutter: clamp(20px, 5vw, 64px);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #1a1714;
    --bg-2: #161311;
    --paper: #221e1a;
    --ink: #ece4d6;
    --ink-soft: #b3a796;
    --ink-faint: #6f6557;
    --line: #342e27;
    --line-strong: #443c33;
    --accent: #e08a52;
    --accent-deep: #c9743d;
    --accent-soft: rgba(224, 138, 82, 0.16);
    --on-accent: #1a120c;
    --sage: #9aa882;
    --shadow: 0 10px 34px -14px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 50px 90px -45px rgba(0, 0, 0, 0.75);
    --grain-opacity: 0.05;
  }
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-ui);
  color: var(--ink);
  background-color: var(--bg);
  background-image:
    radial-gradient(120% 90% at 0% 0%, var(--bg-2) 0%, transparent 55%),
    radial-gradient(120% 90% at 100% 100%, var(--accent-soft) 0%, transparent 50%);
  background-attachment: fixed;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  line-height: 1.6;
}

/* Film grain, same trick as the app */
body::after {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 9999;
  pointer-events: none;
  opacity: var(--grain-opacity);
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='2' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)'/%3E%3C/svg%3E");
}

a {
  color: inherit;
}

.wrap {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

/* ---------- Shared type ---------- */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.74rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin: 0 0 1rem;
}

.section__title {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: clamp(1.9rem, 4vw, 3rem);
  line-height: 1.08;
  letter-spacing: -0.01em;
  margin: 0 0 2.6rem;
  color: var(--ink);
}

.mono {
  font-family: var(--font-mono);
}

/* ---------- Buttons ---------- */
.btn {
  --pad-y: 0.72rem;
  --pad-x: 1.4rem;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-ui);
  font-weight: 600;
  font-size: 0.98rem;
  line-height: 1;
  padding: var(--pad-y) var(--pad-x);
  border-radius: 999px;
  border: 1px solid transparent;
  text-decoration: none;
  cursor: pointer;
  transition: transform 0.15s ease, background-color 0.2s ease,
    border-color 0.2s ease, box-shadow 0.2s ease;
}
.btn:hover {
  transform: translateY(-2px);
}
.btn:active {
  transform: translateY(0);
}
.btn--solid {
  background: var(--accent);
  color: var(--on-accent);
  box-shadow: 0 10px 24px -14px var(--accent);
}
.btn--solid:hover {
  background: var(--accent-deep);
}
.btn--ghost {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn--ghost:hover {
  border-color: var(--accent);
  color: var(--accent-deep);
}
.btn--sm {
  --pad-y: 0.5rem;
  --pad-x: 1rem;
  font-size: 0.86rem;
}
.btn--lg {
  --pad-y: 0.95rem;
  --pad-x: 1.9rem;
  font-size: 1.05rem;
}

/* ---------- Header ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: color-mix(in srgb, var(--bg) 82%, transparent);
  backdrop-filter: saturate(140%) blur(10px);
  border-bottom: 1px solid var(--line);
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding-block: 0.85rem;
}
.wordmark {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.3rem;
  letter-spacing: -0.01em;
  text-decoration: none;
  color: var(--ink);
}
.wordmark__ring {
  display: inline-flex;
  color: var(--accent);
}
.site-nav {
  display: flex;
  align-items: center;
  gap: 1.6rem;
}
.site-nav a {
  text-decoration: none;
  font-size: 0.95rem;
  color: var(--ink-soft);
  transition: color 0.2s ease;
}
.site-nav a:hover {
  color: var(--accent-deep);
}
.site-nav .btn:hover {
  color: var(--on-accent);
}

/* ---------- Hero ---------- */
.hero {
  padding-top: clamp(3rem, 8vw, 6.5rem);
  padding-bottom: clamp(3rem, 8vw, 6rem);
}
.hero__grid {
  display: grid;
  grid-template-columns: 1.05fr 1fr;
  gap: clamp(2rem, 5vw, 4.5rem);
  align-items: center;
}
.hero__title {
  font-family: var(--font-display);
  font-weight: 300;
  font-size: clamp(2.5rem, 5.6vw, 4.4rem);
  line-height: 1.04;
  letter-spacing: -0.02em;
  margin: 0 0 1.5rem;
  color: var(--ink);
}
.hero__title em {
  font-style: italic;
  font-weight: 400;
  color: var(--accent);
}
.hero__lede {
  font-size: clamp(1.05rem, 1.6vw, 1.22rem);
  color: var(--ink-soft);
  max-width: 34ch;
  margin: 0 0 2rem;
}
.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
  margin-bottom: 1.2rem;
}
.hero__fineprint {
  font-size: 0.8rem;
  color: var(--ink-faint);
  letter-spacing: 0.02em;
  margin: 0;
}

/* ---------- App window mockup (signature) ---------- */
.hero__art {
  perspective: 1600px;
}
.app-window {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: var(--shadow-lg);
  overflow: hidden;
  transform: rotateY(-7deg) rotateX(2deg);
  transform-origin: center;
  transition: transform 0.5s ease;
}
.hero__art:hover .app-window {
  transform: rotateY(-3deg) rotateX(1deg) translateY(-4px);
}
.app-window__bar {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  padding: 0.7rem 0.9rem;
  background: var(--bg-2);
  border-bottom: 1px solid var(--line);
}
.app-window__bar .dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--line-strong);
}
.app-window__title {
  margin-left: auto;
  margin-right: auto;
  font-family: var(--font-display);
  font-size: 0.85rem;
  color: var(--ink-faint);
  transform: translateX(-15px);
}
.app-window__body {
  display: grid;
  grid-template-columns: 1fr 1fr;
  min-height: 320px;
}
.pane {
  padding: 1.5rem 1.4rem;
}
.pane--focus {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.4rem;
  border-right: 1px solid var(--line);
}
.pane--notes {
  background: color-mix(in srgb, var(--paper) 70%, var(--bg-2));
}

/* the depleting ring */
.ring {
  position: relative;
  width: 150px;
  height: 150px;
  margin-top: 0.5rem;
}
.ring__svg {
  width: 100%;
  height: 100%;
}
.ring__track {
  fill: none;
  stroke: var(--line);
  stroke-width: 6;
}
.ring__progress {
  fill: none;
  stroke: var(--accent);
  stroke-width: 6;
  stroke-linecap: round;
  stroke-dasharray: 327;
  stroke-dashoffset: 0;
  animation: deplete 14s linear forwards;
}
@keyframes deplete {
  from { stroke-dashoffset: 0; }
  to { stroke-dashoffset: 250; }
}
.ring__readout {
  position: absolute;
  inset: 0;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 0.15rem;
}
.ring__time {
  font-family: var(--font-display);
  font-weight: 400;
  font-size: 1.85rem;
  letter-spacing: -0.01em;
  color: var(--ink);
}
.ring__caption {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent-deep);
}

.tasklist {
  list-style: none;
  margin: 0;
  padding: 0;
  width: 100%;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.task {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 0.82rem;
  color: var(--ink-soft);
}
.task .check {
  flex: none;
  width: 15px;
  height: 15px;
  border-radius: 5px;
  border: 1.5px solid var(--line-strong);
}
.task--done {
  color: var(--ink-faint);
  text-decoration: line-through;
}
.task--done .check {
  background: var(--accent);
  border-color: var(--accent);
}

.notes-toolbar {
  display: flex;
  gap: 0.4rem;
  margin-bottom: 1.1rem;
}
.notes-toolbar span {
  width: 18px;
  height: 18px;
  border-radius: 5px;
  background: var(--bg-2);
  border: 1px solid var(--line);
}
.notes-body {
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}
.notes-h {
  font-family: var(--font-display);
  font-size: 1.1rem;
  margin: 0 0 0.3rem;
  color: var(--ink);
}
.line {
  height: 8px;
  border-radius: 4px;
  background: var(--line);
  margin: 0;
}
.line--lg { width: 100%; }
.line--md { width: 80%; }
.line--sm { width: 55%; }

/* ---------- Sections ---------- */
.section {
  padding-block: clamp(3.5rem, 8vw, 6.5rem);
}
.section--story {
  background: var(--paper);
  border-block: 1px solid var(--line);
}
.section--features {
  background: var(--paper);
  border-block: 1px solid var(--line);
}

/* trio cards */
.trio {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.4rem;
}
.card {
  background: var(--paper);
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 1.8rem 1.6rem;
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, border-color 0.2s ease;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--line-strong);
}
.card__glyph {
  display: inline-flex;
  color: var(--accent);
  margin-bottom: 1rem;
}
.card__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.3rem;
  margin: 0 0 0.6rem;
  color: var(--ink);
}
.card__body {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.98rem;
}

/* story */
.story {
  max-width: 760px;
}
.story__body {
  font-size: clamp(1.1rem, 1.8vw, 1.4rem);
  line-height: 1.6;
  color: var(--ink-soft);
}
.story__body p {
  margin: 0 0 1.3rem;
}
.story__lead {
  font-family: var(--font-display);
  font-weight: 300;
  font-style: italic;
  font-size: 1.1em;
  color: var(--ink);
}
.story__sign {
  font-family: var(--font-display);
  font-style: italic;
  color: var(--accent-deep);
  margin-top: 1.8rem !important;
}

/* trust */
.trust {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 2.4rem;
}
.trust__tag {
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent-deep);
  margin: 0 0 0.7rem;
  padding-bottom: 0.7rem;
  border-bottom: 1px solid var(--line);
}
.trust__title {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: 1.35rem;
  margin: 0 0 0.6rem;
  color: var(--ink);
}
.trust__body {
  margin: 0;
  color: var(--ink-soft);
  font-size: 0.98rem;
}

/* features */
.features {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 0.9rem 2.4rem;
  font-size: 1.05rem;
  color: var(--ink-soft);
}
.features li {
  position: relative;
  padding-left: 1.7rem;
  padding-block: 0.5rem;
  border-bottom: 1px solid var(--line);
}
.features li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 50%;
  width: 9px;
  height: 9px;
  margin-top: -4px;
  border-radius: 50%;
  border: 2px solid var(--accent);
  border-right-color: transparent;
  transform: rotate(-20deg);
}

/* faq */
.faq {
  max-width: 820px;
}
.faq__list {
  margin: 0;
}
.faq__item {
  padding-block: 1.5rem;
  border-top: 1px solid var(--line);
}
.faq__item:last-child {
  border-bottom: 1px solid var(--line);
}
.faq__q {
  font-family: var(--font-display);
  font-weight: 500;
  font-size: clamp(1.15rem, 2vw, 1.4rem);
  color: var(--ink);
  margin-bottom: 0.55rem;
}
.faq__a {
  margin: 0;
  max-width: 64ch;
  color: var(--ink-soft);
  font-size: 1rem;
}

/* download */
.section--download {
  text-align: center;
  border-top: 1px solid var(--line);
}
.download {
  max-width: 680px;
}
.download__title {
  margin-bottom: 2rem;
}
.download__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
  justify-content: center;
  margin-bottom: 1.3rem;
}
.download__note {
  font-size: 0.8rem;
  color: var(--ink-faint);
  margin: 0;
}
.support {
  margin-top: 2.4rem;
  padding-top: 2.2rem;
  border-top: 1px solid var(--line);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.9rem;
}
.support__btn {
  gap: 0.5rem;
  background: var(--accent-soft);
  color: var(--accent-deep);
}
.support__btn:hover {
  background: var(--accent);
  color: var(--on-accent);
}
.support__heart {
  font-size: 0.95em;
  line-height: 1;
}
.support__note {
  margin: 0;
  font-size: 0.9rem;
  color: var(--ink-faint);
}

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--line);
  padding-block: 2.4rem;
}
.site-footer__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.wordmark--sm {
  font-size: 1.05rem;
}
.site-footer__tag {
  margin: 0.4rem 0 0;
  font-size: 0.85rem;
  color: var(--ink-faint);
}
.site-footer__links {
  display: flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}
.site-footer__links a {
  text-decoration: none;
  font-size: 0.92rem;
  color: var(--ink-soft);
  transition: color 0.2s ease;
}
.site-footer__links a:hover {
  color: var(--accent-deep);
}

/* ---------- Accessibility ---------- */
:where(a, .btn):focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 6px;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  .ring__progress {
    stroke-dashoffset: 90; /* show it partway depleted, statically */
  }
  .app-window {
    transform: none;
  }
}

/* ---------- Responsive ---------- */
@media (max-width: 900px) {
  .hero__grid {
    grid-template-columns: 1fr;
  }
  .hero__art {
    order: -1;
    max-width: 460px;
  }
  .app-window {
    transform: none;
  }
  .trio,
  .trust {
    grid-template-columns: 1fr;
  }
  .features {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 620px) {
  .site-nav a:not(.btn) {
    display: none;
  }
  .hero__lede {
    max-width: none;
  }
}