/* Avenor marketing site — site.css
 * Sophisticated Stark. Linear meets Apple product pages.
 * Used by index, capture, features, themes, about.
 * Tokens drawn from the project brief; phone-mockup styles
 * live in phones.css (mounted alongside).
 */

/* ─── Tokens ─────────────────────────────────────────────────────── */
:root {
  --canvas:     #0A0A0C;
  --card:       #101013;
  --card-2:     #141417;
  --field:      #0E0E11;
  --hairline:   #222225;
  --hairline-2: rgba(255,255,255,0.10);

  --fg:    #FFFFFF;
  --fg-1:  rgba(255,255,255,0.92);
  --fg-2:  #AAAAAA;
  --fg-3:  #666666;
  --fg-4:  #444444;

  /* Marketing accent rails (per brief) */
  --c-todo:     #4A9EFF;
  --c-idea:     #FFB347;
  --c-reminder: #FF6B6B;
  --c-note:     #888888;

  /* Real-app accents — used INSIDE the iPhone mockups */
  --app-todo: #9ED6B5;
  --app-goal: #E84F7E;
  --app-note: #8FADD1;
  --app-rem:  #DBA86B;

  --r-card:  12px;
  --r-btn:   6px;
  --r-input: 8px;
  --r-pill:  999px;

  --shadow-phone: 0 40px 80px rgba(0,0,0,0.6);

  --font-display: -apple-system, BlinkMacSystemFont, "SF Pro Display",
                  "Inter", "Helvetica Neue", sans-serif;
  --font-text:    -apple-system, BlinkMacSystemFont, "SF Pro Text",
                  "Inter", "Helvetica Neue", sans-serif;
  --font-mono:    ui-monospace, "SF Mono", "JetBrains Mono", Menlo, monospace;

  --max:  1100px;
  --gut:  24px;
  --sec:  120px;

  --ease: cubic-bezier(.32,.72,.32,1);
  --t-snappy: 220ms var(--ease);
  --t-smooth: 340ms var(--ease);
}

/* ─── Reset & base ───────────────────────────────────────────────── */
* { box-sizing: border-box; }
html, body {
  margin: 0; padding: 0;
  background: var(--canvas);
  color: var(--fg-1);
  font-family: var(--font-text);
  font-size: 16px;
  line-height: 1.55;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}
::selection { background: rgba(255,255,255,0.16); color: var(--fg); }
a { color: inherit; text-decoration: none; }
button { font-family: inherit; }

/* ─── Type helpers ───────────────────────────────────────────────── */
.eyebrow {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--fg-3);
  margin: 0;
  display: inline-block;
}
.display {
  font-family: var(--font-display);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.04;
  color: var(--fg);
  margin: 0;
}
.h-72  { font-size: 72px; }
.h-64  { font-size: 64px; }
.h-48  { font-size: 48px; letter-spacing: -0.025em; }
.h-32  { font-size: 32px; letter-spacing: -0.025em; }

.sub-22 { font-size: 22px; line-height: 1.4; color: var(--fg-2); margin: 0; font-weight: 400; }
.sub-20 { font-size: 20px; line-height: 1.45; color: var(--fg-2); margin: 0; font-weight: 400; }
.sub-18 { font-size: 18px; line-height: 1.5; color: var(--fg-2); margin: 0; font-weight: 400; }

/* ─── Layout ─────────────────────────────────────────────────────── */
.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gut);
}
section { padding: var(--sec) 0; }
section + section { border-top: 1px solid var(--hairline); }
.hr-section { border-top: 1px solid var(--hairline); }

/* ─── Sticky nav ─────────────────────────────────────────────────── */
.nav {
  position: sticky; top: 0; z-index: 50;
  height: 60px;
  background: rgba(10,10,12,0.0);
  border-bottom: 1px solid transparent;
  transition: background var(--t-snappy), backdrop-filter var(--t-snappy),
              border-color var(--t-snappy);
}
.nav.scrolled {
  background: rgba(10,10,12,0.72);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom-color: var(--hairline);
}
.nav-inner {
  max-width: var(--max);
  height: 100%;
  margin: 0 auto;
  padding: 0 var(--gut);
  display: flex; align-items: center; justify-content: space-between;
  gap: 32px;
}
.brand {
  display: flex; align-items: center; gap: 10px;
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 18px;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.brand img { width: 22px; height: 22px; display: block; }

.nav-links {
  display: flex; align-items: center;
  gap: 28px;
  list-style: none; padding: 0; margin: 0;
}
.nav-links a {
  font-size: 14px;
  color: var(--fg-2);
  transition: color 150ms ease;
}
.nav-links a:hover,
.nav-links a.active { color: var(--fg); }

/* ─── Buttons ────────────────────────────────────────────────────── */
.btn {
  display: inline-flex; align-items: center; justify-content: center;
  gap: 8px;
  border: none;
  font-family: var(--font-text);
  font-size: 14px;
  font-weight: 700;
  letter-spacing: -0.005em;
  cursor: pointer;
  transition: opacity 150ms ease, transform 150ms ease, background 150ms ease,
              border-color 150ms ease, color 150ms ease;
  white-space: nowrap;
}
.btn:active { transform: scale(0.97); }
.btn-primary {
  background: #FFFFFF; color: #0A0A0C;
  border-radius: var(--r-btn);
  padding: 10px 16px;
}
.btn-primary:hover { opacity: 0.8; }
.btn-ghost {
  background: transparent; color: var(--fg);
  border: 1px solid rgba(255,255,255,0.40);
  border-radius: var(--r-btn);
  padding: 10px 18px;
}
.btn-ghost:hover { border-color: var(--fg); opacity: 0.9; }
.btn-pill {
  background: transparent; color: var(--fg-2);
  border: 1px solid var(--hairline);
  border-radius: var(--r-pill);
  padding: 8px 14px;
  font-family: var(--font-mono);
  font-size: 12px;
  font-weight: 500;
}
.btn-pill:hover { color: var(--fg); border-color: var(--fg-3); }
.btn-pill.active { background: var(--fg); color: #0A0A0C; border-color: var(--fg); }

/* ─── Email card ─────────────────────────────────────────────────── */
.email-card {
  display: flex; gap: 8px;
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-input);
  padding: 8px;
  max-width: 460px;
  margin: 0 auto;
  transition: border-color var(--t-snappy);
}
.email-card:focus-within { border-color: var(--hairline-2); }
.email-card input {
  flex: 1;
  background: transparent;
  border: none; outline: none;
  color: var(--fg);
  font-family: var(--font-text);
  font-size: 15px;
  padding: 10px 12px;
}
.email-card input::placeholder { color: var(--fg-3); }
.email-card button {
  background: var(--fg); color: #0A0A0C;
  border: none; border-radius: var(--r-btn);
  padding: 10px 18px;
  font-size: 14px; font-weight: 700;
  cursor: pointer;
  transition: opacity 150ms ease, background 150ms ease, color 150ms ease;
  white-space: nowrap;
}
.email-card button:hover { opacity: 0.8; }
.email-card button.sent {
  background: rgba(74,158,255,0.10);
  color: var(--c-todo);
  border: 1px solid rgba(74,158,255,0.35);
  padding: 9px 17px;
}
.email-note {
  margin: 14px 0 0;
  font-size: 12px;
  color: var(--fg-3);
}

/* ─── Generic card ───────────────────────────────────────────────── */
.card {
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  padding: 40px;
  transition: transform 200ms ease, box-shadow 200ms ease, border-color 200ms ease;
}
.card.hov:hover {
  transform: scale(1.01);
  border-color: var(--hairline-2);
  box-shadow: 0 24px 60px rgba(0,0,0,0.45);
}
.card-tight { padding: 24px; }
.card-pad-lg { padding: 60px; }

/* ─── Hero shells ────────────────────────────────────────────────── */
.hero-center {
  min-height: calc(100vh - 60px);
  display: flex; flex-direction: column; justify-content: center; align-items: center;
  text-align: center;
  padding: 80px 0;
  position: relative;
}
.hero-center::before {
  content: '';
  position: absolute; inset: 0;
  background: radial-gradient(circle at 50% 42%, rgba(255,255,255,0.025), transparent 56%);
  pointer-events: none;
}
.hero-center > * { position: relative; }
.hero-center .eyebrow  { margin-bottom: 28px; }
.hero-center .display  { margin-bottom: 20px; max-width: 980px; }
.hero-center .sub-22,
.hero-center .sub-20   { margin-bottom: 36px; max-width: 640px; }

.section-head {
  text-align: center;
  margin-bottom: 56px;
}
.section-head .eyebrow { margin-bottom: 20px; }
.section-head .display { margin-bottom: 16px; }

/* ─── Three-column path explainers ────────────────────────────────── */
.cols-3 {
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  gap: 24px;
  margin-top: 48px;
}
.col-3-item {
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  padding: 32px;
}
.col-3-item .glyph {
  font-family: var(--font-mono);
  font-size: 24px;
  color: var(--fg);
  margin-bottom: 20px;
  display: block;
  line-height: 1;
}
.col-3-item .eyebrow { margin-bottom: 10px; }
.col-3-item h3 {
  margin: 0 0 8px;
  font-family: var(--font-display);
  font-size: 18px;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.015em;
}
.col-3-item p {
  margin: 0; font-size: 14px; line-height: 1.5; color: var(--fg-2);
}

/* ─── 2×2 feature grid ───────────────────────────────────────────── */
.grid-22 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 24px;
}
.grid-22 .feat-card {
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  padding: 40px;
  display: grid;
  grid-template-columns: 1fr 200px;
  gap: 32px;
  align-items: center;
  min-height: 280px;
  transition: border-color 200ms ease;
}
.grid-22 .feat-card:hover { border-color: var(--hairline-2); }
.grid-22 .feat-card .eyebrow { margin-bottom: 14px; }
.grid-22 .feat-card h3 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  color: var(--fg);
  letter-spacing: -0.02em;
  line-height: 1.15;
}
.grid-22 .feat-card .shot { display: flex; justify-content: center; }

/* ─── Alternating feature blocks (features.html) ──────────────────── */
.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}
.split.reverse { direction: rtl; }
.split.reverse > * { direction: ltr; }
.split .copy .eyebrow  { margin-bottom: 20px; }
.split .copy h2 {
  margin: 0 0 18px;
  font-family: var(--font-display);
  font-size: 40px;
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.08;
  color: var(--fg);
  max-width: 460px;
}
.split .copy p {
  margin: 0; font-size: 17px; line-height: 1.55;
  color: var(--fg-2); max-width: 460px;
}
.split .shot { display: flex; justify-content: center; }

/* ─── Theme teaser strip ─────────────────────────────────────────── */
.theme-strip {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.theme-tile {
  display: flex; flex-direction: column; align-items: center; gap: 16px;
  cursor: pointer;
  transition: transform 200ms ease, filter 200ms ease;
}
.theme-tile:hover { transform: scale(1.02); }
.theme-tile .label {
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--fg-2);
}

/* ─── Theme showcase (themes.html) ────────────────────────────────── */
.theme-show {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
  padding: 60px;
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  margin-bottom: 32px;
}
.theme-show.reverse { direction: rtl; }
.theme-show.reverse > * { direction: ltr; }
.theme-show .meta .eyebrow { margin-bottom: 16px; }
.theme-show .meta h3 {
  margin: 0 0 16px;
  font-family: var(--font-display);
  font-size: 36px;
  font-weight: 700;
  letter-spacing: -0.025em;
  color: var(--fg);
}
.theme-show .meta p {
  margin: 0 0 28px; font-size: 16px; line-height: 1.6;
  color: var(--fg-2); max-width: 440px;
}
.swatch-row { display: flex; gap: 12px; }
.swatch {
  width: 36px; height: 36px;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.10);
}

/* ─── Parse-result card (capture demo) ────────────────────────────── */
.capture-box {
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  padding: 60px;
}
.capture-bar {
  background: var(--field);
  border: 1px solid var(--hairline);
  border-radius: var(--r-input);
  padding: 22px 24px;
  display: flex; align-items: center; gap: 12px;
  font-family: var(--font-mono);
  font-size: 16px;
  color: var(--fg);
  min-height: 64px;
}
.capture-bar .prompt { color: var(--fg-2); font-weight: 500; }
.capture-bar .typed { color: var(--fg); white-space: pre; }
.capture-bar .placeholder {
  color: var(--fg-4);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}
.capture-bar .caret {
  display: inline-block;
  width: 2px; height: 18px;
  background: var(--fg);
  margin-left: 1px;
  animation: caret 1.05s steps(1) infinite;
  vertical-align: middle;
}
@keyframes caret { 0%,49%{opacity:1} 50%,100%{opacity:0} }

.demo-buttons {
  display: flex; gap: 10px; flex-wrap: wrap;
  margin-top: 20px;
}
.demo-buttons .btn-pill { cursor: pointer; }

.parse-card {
  margin-top: 28px;
  background: var(--card-2);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  padding: 24px 28px;
  display: flex; gap: 18px;
  align-items: flex-start;
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 300ms ease-out, transform 300ms ease-out;
  position: relative;
}
.parse-card.show { opacity: 1; transform: translateY(0); }
.parse-rail {
  width: 2px;
  background: var(--c-todo);
  border-radius: 1px;
  align-self: stretch;
  min-height: 60px;
  flex-shrink: 0;
}
.parse-body { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 4px; }
.parse-meta {
  font-family: var(--font-mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-2);
  display: flex; gap: 10px; align-items: center; flex-wrap: wrap;
  margin-bottom: 4px;
}
.parse-meta span { opacity: 0; transform: translateY(4px); transition: opacity 240ms ease, transform 240ms ease; }
.parse-card.show .parse-meta span { opacity: 1; transform: translateY(0); }
.parse-meta .dot { color: var(--fg-4); }
.parse-title {
  font-family: var(--font-text);
  font-size: 18px;
  color: var(--fg);
  font-weight: 500;
  opacity: 0; transform: translateY(4px);
  transition: opacity 240ms ease 320ms, transform 240ms ease 320ms;
}
.parse-card.show .parse-title { opacity: 1; transform: translateY(0); }

/* ─── Footer ─────────────────────────────────────────────────────── */
.footer {
  border-top: 1px solid var(--hairline);
  padding: 32px 0;
  font-size: 12px;
  color: var(--fg-3);
}
.footer-inner {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 var(--gut);
  display: grid;
  grid-template-columns: 1fr 1fr 1fr;
  align-items: center;
  gap: 24px;
}
.footer-center { text-align: center; }
.footer-right  { text-align: right; }
.footer a:hover { color: var(--fg-1); }

/* ─── Scroll reveal ──────────────────────────────────────────────── */
.reveal { opacity: 0; transform: translateY(20px); transition: opacity 400ms ease-out, transform 400ms ease-out; }
.reveal.in { opacity: 1; transform: translateY(0); }
.reveal.stagger > * { opacity: 0; transform: translateY(20px); transition: opacity 400ms ease-out, transform 400ms ease-out; }
.reveal.stagger.in > * { opacity: 1; transform: translateY(0); }
.reveal.stagger.in > *:nth-child(2) { transition-delay: 80ms; }
.reveal.stagger.in > *:nth-child(3) { transition-delay: 160ms; }
.reveal.stagger.in > *:nth-child(4) { transition-delay: 240ms; }
.reveal.stagger.in > *:nth-child(5) { transition-delay: 320ms; }

/* ─── Parse reference table (capture.html) ────────────────────────── */
.parse-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card);
  border: 1px solid var(--hairline);
  border-radius: var(--r-card);
  overflow: hidden;
}
.parse-table th,
.parse-table td {
  padding: 14px 20px;
  border-bottom: 1px solid var(--hairline);
  text-align: left;
  vertical-align: middle;
}
.parse-table tr:last-child td { border-bottom: none; }
.parse-table th {
  font-family: var(--font-mono);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--fg-3);
  background: var(--card-2);
}
.parse-table td.pat,
.parse-table td.ex {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--fg);
}
.parse-table td.ex { color: var(--fg-2); }
.parse-table td.desc {
  font-family: var(--font-text);
  font-size: 14px;
  color: var(--fg-1);
}

/* ─── Flowchart (capture.html step 2) ─────────────────────────────── */
.flow {
  display: flex; flex-direction: column;
  gap: 0;
  font-family: var(--font-mono);
  font-size: 12px;
  letter-spacing: 0.04em;
  color: var(--fg-2);
}
.flow-row { display: flex; align-items: center; gap: 14px; min-height: 30px; }
.flow-node {
  width: 10px; height: 10px;
  background: var(--fg);
  flex-shrink: 0;
}
.flow-line {
  flex-shrink: 0;
  background: var(--hairline);
}
.flow-line.h { width: 28px; height: 1px; }
.flow-line.v { width: 1px; height: 22px; margin-left: 4px; }
.flow-label { color: var(--fg-2); text-transform: uppercase; }
.flow-label .yes { color: var(--app-todo); }
.flow-label .no  { color: var(--fg-3); }
.flow-result { color: var(--fg); font-weight: 600; }

/* ─── Annotation block (capture page card 1) ──────────────────────── */
.annot-list { display: flex; flex-direction: column; gap: 14px; }
.annot-row {
  display: flex; align-items: flex-start; gap: 14px;
  font-family: var(--font-mono);
  font-size: 13px;
  color: var(--fg-2);
  line-height: 1.5;
}
.annot-row .tag {
  font-weight: 600;
  padding: 2px 8px;
  border-radius: 4px;
  flex-shrink: 0;
  min-width: 80px;
  text-align: center;
}
.annot-row .tag.t-title { background: rgba(74,158,255,0.16); color: #7DB8FF; }
.annot-row .tag.t-date  { background: rgba(158,214,181,0.16); color: #9ED6B5; }
.annot-row .tag.t-prio  { background: rgba(255,179,71,0.16);  color: #FFB347; }

/* ─── Principles row (about.html) ────────────────────────────────── */
.principles {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
  margin-top: 48px;
}
.principle .eyebrow { margin-bottom: 16px; }
.principle h3 {
  margin: 0 0 12px;
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--fg);
}
.principle p {
  margin: 0; font-size: 15px; line-height: 1.55; color: var(--fg-2);
}

/* ─── About prose ────────────────────────────────────────────────── */
.prose {
  max-width: 640px; margin: 0 auto;
  text-align: left;
}
.prose p {
  font-size: 16px;
  line-height: 1.7;
  color: var(--fg-2);
  margin: 0 0 20px;
}
.prose p:last-child { margin-bottom: 0; }

/* ─── Responsive ─────────────────────────────────────────────────── */
@media (max-width: 920px) {
  :root { --sec: 80px; }
  .h-72 { font-size: 48px; }
  .h-64 { font-size: 42px; }
  .h-48 { font-size: 32px; }
  .h-32 { font-size: 24px; }
  .nav-links { display: none; }
  .cols-3, .grid-22, .theme-strip, .principles { grid-template-columns: 1fr; }
  .split, .theme-show { grid-template-columns: 1fr; gap: 48px; padding: 32px; }
  .grid-22 .feat-card { grid-template-columns: 1fr; gap: 24px; min-height: 0; }
  .capture-box { padding: 28px; }
  .card-pad-lg { padding: 32px; }
  .footer-inner { grid-template-columns: 1fr; text-align: center; gap: 8px; }
  .footer-right { text-align: center; }
}
@media (max-width: 520px) {
  .email-card { flex-direction: column; padding: 12px; }
  .email-card button { width: 100%; }
  .capture-bar { padding: 16px 14px; font-size: 14px; }
}