/* Diary of Work — landing site
   Warm paper + ink, editorial serif display, handwriting accents.
   Light + dark, responsive, no dependencies. */

:root {
  --paper:      #fbf7f0;
  --paper-2:    #f4ede1;
  --surface:    #ffffff;
  --ink:        #17130e;
  --ink-soft:   #5f574a;
  --ink-faint:  #8a8072;
  --line:       rgba(23,19,14,.12);
  --line-soft:  rgba(23,19,14,.07);
  --brand:      #1f3a5f;
  --brand-2:    #16304f;
  --brand-ink:  #ffffff;
  --accent:     #c47a1e;
  --accent-2:   #b06d15;
  --ok:         #2f7d5b;
  --ok-bg:      rgba(47,125,91,.12);
  --rule:       #9fb6d4;      /* note-paper ruling */
  --shadow:     0 1px 2px rgba(23,19,14,.05), 0 12px 32px -12px rgba(23,19,14,.18);
  --shadow-lg:  0 2px 4px rgba(23,19,14,.06), 0 30px 60px -20px rgba(23,19,14,.28);
  --radius:     16px;
  --radius-sm:  10px;
  --maxw:       1120px;
  --serif: "Fraunces", ui-serif, Georgia, "Times New Roman", serif;
  --sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --hand: "Caveat", "Segoe Script", cursive;
}

@media (prefers-color-scheme: dark) {
  :root {
    --paper:     #14110d;
    --paper-2:   #1b1712;
    --surface:   #211c16;
    --ink:       #f4efe7;
    --ink-soft:  #bcb1a1;
    --ink-faint: #8d8474;
    --line:      rgba(244,239,231,.14);
    --line-soft: rgba(244,239,231,.08);
    --brand:     #4d7ec0;
    --brand-2:   #3d6aa8;
    --brand-ink: #0f0d0a;
    --accent:    #e3a250;
    --accent-2:  #d8944a;
    --ok:        #5cbd90;
    --ok-bg:     rgba(92,189,144,.14);
    --rule:      rgba(120,150,190,.35);
    --shadow:    0 1px 2px rgba(0,0,0,.4), 0 14px 34px -14px rgba(0,0,0,.6);
    --shadow-lg: 0 2px 4px rgba(0,0,0,.4), 0 34px 66px -22px rgba(0,0,0,.7);
  }
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) { html { scroll-behavior: auto; } }

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.6;
  font-size: 17px;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { max-width: 100%; display: block; }
a { color: var(--brand); text-decoration: none; }
a:hover { text-decoration: underline; }

.wrap { width: 100%; max-width: var(--maxw); margin-inline: auto; padding-inline: 22px; }
.narrow { max-width: 760px; }

h1, h2, h3 { font-family: var(--serif); font-weight: 600; line-height: 1.1; letter-spacing: -.01em; color: var(--ink); }
h2 { font-size: clamp(1.7rem, 1.1rem + 2.4vw, 2.6rem); margin: .2em 0 .5em; }
h3 { font-size: 1.12rem; }

.visually-hidden {
  position: absolute; width: 1px; height: 1px; padding: 0; margin: -1px;
  overflow: hidden; clip: rect(0 0 0 0); white-space: nowrap; border: 0;
}
.skip-link {
  position: absolute; left: 12px; top: -60px; z-index: 100;
  background: var(--brand); color: var(--brand-ink); padding: 10px 16px;
  border-radius: 8px; transition: top .15s;
}
.skip-link:focus { top: 12px; }

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

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5em;
  font-family: var(--sans); font-weight: 600; font-size: 1rem;
  padding: 13px 22px; border-radius: 999px; border: 1px solid transparent;
  cursor: pointer; transition: transform .12s ease, box-shadow .15s ease, background .15s;
  white-space: nowrap;
}
.btn:hover { text-decoration: none; }
.btn-sm { padding: 9px 16px; font-size: .95rem; }
.btn-primary { background: var(--brand); color: var(--brand-ink); box-shadow: var(--shadow); }
.btn-primary:hover { background: var(--brand-2); transform: translateY(-1px); }
.btn-ghost { background: transparent; color: var(--ink); border-color: var(--line); }
.btn-ghost:hover { border-color: var(--ink-soft); background: var(--line-soft); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: color-mix(in srgb, var(--paper) 86%, transparent);
  backdrop-filter: saturate(1.4) blur(10px);
  border-bottom: 1px solid var(--line-soft);
}
.header-inner { display: flex; align-items: center; gap: 20px; height: 66px; }
.brand { display: inline-flex; align-items: center; gap: 10px; font-family: var(--serif); font-weight: 600; font-size: 1.12rem; color: var(--ink); }
.brand:hover { text-decoration: none; }
.nav { margin-left: auto; display: flex; gap: 26px; }
.nav a { color: var(--ink-soft); font-weight: 500; font-size: .96rem; }
.nav a:hover { color: var(--ink); text-decoration: none; }
.header-inner > .btn { margin-left: 8px; }
@media (max-width: 820px) {
  .nav { display: none; }
  .header-inner > .btn { margin-left: auto; }
}

/* ---------- Hero ---------- */
.hero { position: relative; padding: clamp(48px, 6vw, 96px) 0 40px; overflow: hidden; }
.hero::before {
  content: ""; position: absolute; inset: 0; z-index: -1;
  background:
    radial-gradient(60% 60% at 85% -5%, color-mix(in srgb, var(--brand) 12%, transparent), transparent 70%),
    radial-gradient(50% 50% at 5% 10%, color-mix(in srgb, var(--accent) 12%, transparent), transparent 70%);
}
.hero-grid { display: grid; grid-template-columns: 1.05fr 1fr; gap: 54px; align-items: center; }
@media (max-width: 940px) { .hero-grid { grid-template-columns: 1fr; gap: 40px; } }

.eyebrow {
  display: inline-block; font-weight: 600; font-size: .82rem; letter-spacing: .04em;
  text-transform: uppercase; color: var(--accent-2); margin: 0 0 16px;
}
.hero h1 { font-size: clamp(2.4rem, 1.4rem + 4.6vw, 4.1rem); margin: 0 0 20px; font-weight: 600; }
.hero h1 .ink { color: var(--brand); font-style: italic; }
.lede { font-size: clamp(1.05rem, 1rem + .5vw, 1.3rem); color: var(--ink-soft); max-width: 34em; margin: 0 0 28px; }
.lede strong { color: var(--ink); font-weight: 600; }
.hero-cta { display: flex; flex-wrap: wrap; gap: 12px; margin-bottom: 16px; }
.hero-note { font-size: .92rem; color: var(--ink-faint); margin: 0; }

/* ---------- Demo (note -> record) ---------- */
.hero-demo { min-width: 0; }
.demo {
  background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius);
  box-shadow: var(--shadow-lg); padding: 16px;
}
.demo-chips { display: flex; flex-wrap: wrap; gap: 7px; margin-bottom: 14px; }
.chip {
  font-family: var(--sans); font-size: .82rem; font-weight: 600; color: var(--ink-soft);
  background: var(--paper-2); border: 1px solid var(--line); border-radius: 999px;
  padding: 6px 13px; cursor: pointer; transition: all .14s;
}
.chip:hover { color: var(--ink); border-color: var(--ink-faint); }
.chip.is-active { background: var(--brand); color: var(--brand-ink); border-color: var(--brand); }

.demo-flow { display: grid; grid-template-columns: 1fr auto 1fr; align-items: stretch; gap: 10px; }
@media (max-width: 560px) { .demo-flow { grid-template-columns: 1fr; } }

.card { margin: 0; border-radius: var(--radius-sm); border: 1px solid var(--line); background: var(--paper); overflow: hidden; display: flex; flex-direction: column; }
.card-label {
  display: flex; align-items: center; gap: 7px; font-size: .72rem; font-weight: 700;
  letter-spacing: .06em; text-transform: uppercase; color: var(--ink-faint);
  padding: 10px 12px 8px;
}
.dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent); }
.dot-ok { background: var(--ok); }

/* handwritten note */
.note-paper {
  flex: 1; margin: 0 12px 12px; border-radius: 8px; padding: 10px 12px 12px 34px;
  background:
    linear-gradient(var(--surface), var(--surface)) padding-box,
    repeating-linear-gradient(var(--surface) 0 29px, var(--rule) 29px 30px);
  background-color: var(--surface);
  border: 1px solid var(--line-soft);
  position: relative; min-height: 190px;
}
.note-paper::before { content: ""; position: absolute; left: 22px; top: 0; bottom: 0; width: 1.5px; background: color-mix(in srgb, var(--accent) 55%, transparent); opacity: .5; }
.handwriting {
  font-family: var(--hand); font-size: 1.5rem; line-height: 30px; color: var(--brand);
  margin: 0; white-space: pre-wrap; letter-spacing: .2px;
}

/* transform arrow */
.transform { display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 6px; color: var(--accent); padding: 4px; }
.transform-label { font-size: .68rem; font-weight: 700; text-transform: uppercase; letter-spacing: .08em; color: var(--ink-faint); }
.arrow { animation: nudge 1.8s ease-in-out infinite; }
@media (max-width: 560px) { .arrow { transform: rotate(90deg); } }
@keyframes nudge { 0%,100% { transform: translateX(0);} 50% { transform: translateX(4px);} }
@media (max-width: 560px) { @keyframes nudge { 0%,100% { transform: rotate(90deg) translateX(0);} 50% { transform: rotate(90deg) translateX(4px);} } }
@media (prefers-reduced-motion: reduce) { .arrow { animation: none; } }

/* structured record */
.record { padding: 4px 14px 14px; font-size: .9rem; }
.rec-head { display: flex; align-items: center; justify-content: space-between; gap: 8px; margin-bottom: 8px; }
.rec-date { font-weight: 600; color: var(--ink); font-size: .84rem; }
.rec-badge { font-size: .68rem; font-weight: 700; letter-spacing: .03em; text-transform: uppercase; color: var(--ok); background: var(--ok-bg); padding: 3px 8px; border-radius: 999px; }
.rec-project { font-family: var(--serif); font-weight: 600; font-size: 1.15rem; color: var(--ink); margin-bottom: 10px; }
.rec-fields { margin: 0; }
.rec-row { padding: 7px 0; border-top: 1px solid var(--line-soft); display: grid; grid-template-columns: 74px 1fr; gap: 10px; align-items: start; }
.rec-key { font-size: .68rem; font-weight: 700; letter-spacing: .05em; text-transform: uppercase; color: var(--ink-faint); padding-top: 2px; }
.rec-val { color: var(--ink); }
.rec-tasks { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 4px; }
.rec-tasks li { position: relative; padding-left: 20px; }
.rec-tasks li::before { content: ""; position: absolute; left: 0; top: 6px; width: 12px; height: 12px; border-radius: 3px; background: var(--ok-bg); border: 1.5px solid var(--ok); }
.rec-tasks li::after { content: ""; position: absolute; left: 4px; top: 8px; width: 3px; height: 6px; border: solid var(--ok); border-width: 0 2px 2px 0; transform: rotate(40deg); }
.rec-hours b { font-family: var(--serif); font-size: 1.05rem; }
.rec-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 12px; }
.rec-tag { font-size: .72rem; font-weight: 600; color: var(--brand); background: color-mix(in srgb, var(--brand) 10%, transparent); border-radius: 999px; padding: 3px 9px; }
.rec-trace { margin-top: 12px; font-size: .72rem; color: var(--ink-faint); display: flex; align-items: center; gap: 6px; }

.demo.is-swapping .note-paper .handwriting,
.demo.is-swapping .record { opacity: 0; }
.note-paper .handwriting, .record { transition: opacity .18s ease; }

/* ---------- Strip ---------- */
.strip { border-block: 1px solid var(--line-soft); background: var(--paper-2); }
.strip-inner { display: flex; flex-wrap: wrap; align-items: center; gap: 8px 18px; padding: 18px 0; color: var(--ink-soft); font-size: .92rem; }
.strip-inner ul { display: flex; flex-wrap: wrap; gap: 8px 20px; list-style: none; margin: 0; padding: 0; }
.strip-inner li { font-weight: 600; color: var(--ink); }
.strip-inner li::before { content: "·"; margin-right: 20px; color: var(--ink-faint); }
.strip-inner li:first-child::before { content: none; }

/* ---------- Sections ---------- */
.section { padding: clamp(56px, 7vw, 104px) 0; }
.kicker { font-weight: 700; font-size: .8rem; letter-spacing: .1em; text-transform: uppercase; color: var(--accent-2); margin: 0 0 6px; }
.section-lede { font-size: 1.12rem; color: var(--ink-soft); max-width: 42em; }

.problem { background: var(--paper-2); border-block: 1px solid var(--line-soft); }
.pain-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(200px, 1fr)); gap: 18px; margin-top: 32px; }
.pain { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 20px; box-shadow: var(--shadow); }
.pain h3 { margin: 0 0 6px; color: var(--brand); }
.pain p { margin: 0; color: var(--ink-soft); font-size: .96rem; }

/* Steps */
.steps { list-style: none; margin: 36px 0 0; padding: 0; display: grid; grid-template-columns: repeat(4, 1fr); gap: 20px; counter-reset: step; }
@media (max-width: 900px) { .steps { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .steps { grid-template-columns: 1fr; } }
.step { position: relative; padding-top: 8px; }
.step-num {
  display: inline-flex; align-items: center; justify-content: center; width: 42px; height: 42px;
  border-radius: 12px; background: var(--brand); color: var(--brand-ink);
  font-family: var(--serif); font-weight: 600; font-size: 1.2rem; margin-bottom: 14px; box-shadow: var(--shadow);
}
.step h3 { margin: 0 0 6px; }
.step p { margin: 0; color: var(--ink-soft); font-size: .96rem; }
.how-foot { margin-top: 40px; padding: 22px 24px; border-left: 3px solid var(--accent); background: var(--paper-2); border-radius: 0 var(--radius-sm) var(--radius-sm) 0; font-size: 1.08rem; color: var(--ink-soft); max-width: 52em; }
.how-foot strong { color: var(--ink); }

/* Features */
.features { background: var(--paper-2); border-block: 1px solid var(--line-soft); }
.feature-cols { display: grid; grid-template-columns: repeat(4, 1fr); gap: 22px; margin-top: 34px; }
@media (max-width: 900px) { .feature-cols { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 480px) { .feature-cols { grid-template-columns: 1fr; } }
.feature-head { color: var(--brand); font-family: var(--serif); font-size: 1.15rem; margin: 0 0 12px; padding-bottom: 10px; border-bottom: 2px solid var(--line); }
.feature-list { list-style: none; margin: 0; padding: 0; display: flex; flex-direction: column; gap: 10px; }
.feature-list li { position: relative; padding-left: 22px; color: var(--ink-soft); font-size: .96rem; }
.feature-list li::before { content: ""; position: absolute; left: 2px; top: .55em; width: 7px; height: 7px; border-radius: 50%; background: var(--accent); }

/* Personas */
.persona-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; margin-top: 34px; }
@media (max-width: 860px) { .persona-grid { grid-template-columns: repeat(2, 1fr); } }
@media (max-width: 520px) { .persona-grid { grid-template-columns: 1fr; } }
.persona { background: var(--surface); border: 1px solid var(--line); border-radius: var(--radius-sm); padding: 22px; box-shadow: var(--shadow); transition: transform .14s ease, box-shadow .15s; }
.persona:hover { transform: translateY(-3px); box-shadow: var(--shadow-lg); }
.persona h3 { margin: 0 0 8px; color: var(--brand); }
.persona p { margin: 0; color: var(--ink-soft); font-size: .96rem; }

/* Exports */
.exports { background: var(--paper-2); border-block: 1px solid var(--line-soft); }
.export-chips { display: flex; flex-wrap: wrap; gap: 12px; margin-top: 26px; }
.export-chip { font-weight: 600; font-size: .98rem; color: var(--ink); background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 11px 20px; box-shadow: var(--shadow); }

/* FAQ */
.faq-list { margin-top: 28px; border-top: 1px solid var(--line); }
.faq-list details { border-bottom: 1px solid var(--line); }
.faq-list summary { cursor: pointer; list-style: none; padding: 20px 40px 20px 0; font-family: var(--serif); font-weight: 600; font-size: 1.12rem; color: var(--ink); position: relative; }
.faq-list summary::-webkit-details-marker { display: none; }
.faq-list summary::after { content: "+"; position: absolute; right: 4px; top: 50%; transform: translateY(-50%); font-family: var(--sans); font-weight: 400; font-size: 1.6rem; color: var(--accent); transition: transform .2s; }
.faq-list details[open] summary::after { transform: translateY(-50%) rotate(45deg); }
.faq-list p { margin: 0 0 22px; color: var(--ink-soft); max-width: 60em; }

/* CTA */
.cta { text-align: center; }
.cta-inner { margin-inline: auto; }
.cta h2 { font-size: clamp(1.9rem, 1.2rem + 3vw, 3rem); }
.cta .section-lede { margin-inline: auto; margin-bottom: 26px; }
.waitlist { display: flex; gap: 10px; max-width: 480px; margin: 0 auto 12px; }
@media (max-width: 480px) { .waitlist { flex-direction: column; } }
.waitlist input {
  flex: 1; min-width: 0; font-family: var(--sans); font-size: 1rem; color: var(--ink);
  background: var(--surface); border: 1px solid var(--line); border-radius: 999px; padding: 13px 20px;
}
.waitlist input::placeholder { color: var(--ink-faint); }
.waitlist input:focus-visible { outline: 3px solid var(--accent); outline-offset: 2px; border-color: var(--accent); }
.waitlist-msg { min-height: 1.4em; margin: 0; font-weight: 600; color: var(--ok); }
.waitlist-msg.error { color: #c0392b; }
.cta-fineprint { font-size: .86rem; color: var(--ink-faint); max-width: 40em; margin: 8px auto 0; }

/* ---------- Footer ---------- */
.site-footer { border-top: 1px solid var(--line); background: var(--paper-2); }
.footer-inner { display: grid; grid-template-columns: 1fr auto; gap: 20px 40px; align-items: center; padding: 40px 0; }
@media (max-width: 680px) { .footer-inner { grid-template-columns: 1fr; } }
.footer-brand { display: flex; align-items: center; gap: 12px; }
.footer-name { font-family: var(--serif); font-weight: 600; margin: 0; font-size: 1.05rem; }
.footer-tag { margin: 0; color: var(--ink-soft); font-size: .9rem; }
.footer-nav { display: flex; flex-wrap: wrap; gap: 18px; }
.footer-nav a { color: var(--ink-soft); font-size: .94rem; font-weight: 500; }
.footer-nav a:hover { color: var(--ink); text-decoration: none; }
.footer-legal { grid-column: 1 / -1; margin: 6px 0 0; padding-top: 20px; border-top: 1px solid var(--line-soft); color: var(--ink-faint); font-size: .86rem; }
.footer-legal a { color: var(--ink-soft); }