/* Seven Reads — marketing site. One stylesheet, no JavaScript anywhere. */

:root {
  --bg: #ffffff;
  --ink: #0b0b0f;
  --muted: #5d5d66;
  --faint: #6b6b74;
  --card: #f5f5f7;
  --rule: #e9e9ee;
  --dark: #0e0e12;
  --dark-ink: #f4f4f6;
  --dark-muted: #a3a3ad;
  --radius: 22px;
  --radius-sm: 14px;
  --sans: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --serif: "Iowan Old Style", "Palatino Linotype", Palatino, Georgia, serif;
}

* { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
body {
  margin: 0;
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-size: 17px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img, svg { max-width: 100%; height: auto; }
a { color: inherit; }

.wrap { max-width: 1080px; margin: 0 auto; padding: 0 24px; }
.narrow { max-width: 720px; }

.skip {
  position: absolute; left: -9999px; top: 0;
  background: var(--ink); color: #fff; padding: 10px 16px; border-radius: 0 0 10px 0;
  z-index: 100;
}
.skip:focus { left: 0; }

/* ---------- Header ---------- */

.site-header {
  position: sticky; top: 0; z-index: 50;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: saturate(180%) blur(14px);
  -webkit-backdrop-filter: saturate(180%) blur(14px);
  border-bottom: 1px solid var(--rule);
}
.site-header .bar {
  display: flex; align-items: center; gap: 28px;
  height: 64px;
}
.brand {
  font-family: var(--serif);
  font-size: 21px; font-weight: 600; letter-spacing: 0.01em;
  text-decoration: none;
  display: flex; align-items: center; gap: 10px;
}
.brand .mark {
  width: 30px; height: 30px; border-radius: 8px;
  background: var(--ink); color: #fff;
  display: inline-flex; align-items: center; justify-content: center;
  font-size: 16px; line-height: 1;
}
.site-nav { display: flex; gap: 24px; margin-left: auto; }
.site-nav a {
  text-decoration: none; color: var(--muted); font-size: 15px; font-weight: 500;
}
.site-nav a:hover { color: var(--ink); }
.header-cta {
  margin-left: 8px;
  background: var(--ink); color: #fff;
  font-size: 14px; font-weight: 600;
  padding: 9px 18px; border-radius: 999px; text-decoration: none;
  white-space: nowrap;
}
.header-cta:hover { opacity: 0.85; }

/* ---------- Buttons & badges ---------- */

.badges { display: flex; gap: 12px; flex-wrap: wrap; align-items: center; }
.badge {
  display: inline-flex; border-radius: 12px; overflow: hidden;
  line-height: 0;
}
.badge:hover { opacity: 0.85; }
.badge[aria-disabled="true"] { cursor: default; }
.badge[aria-disabled="true"]:hover { opacity: 1; }
.badge-note { font-size: 12.5px; color: var(--faint); margin-top: 10px; }

.pill {
  display: inline-block;
  background: var(--ink); color: #fff;
  font-weight: 600; font-size: 16px;
  padding: 14px 28px; border-radius: 999px; text-decoration: none;
}
.pill:hover { opacity: 0.85; }
.pill.light { background: #fff; color: var(--ink); }

/* ---------- Hero ---------- */

.hero { padding: 72px 0 40px; }
.hero-grid {
  display: grid; grid-template-columns: 1.1fr 0.9fr;
  gap: 48px; align-items: center;
}
.hero h1 {
  font-size: clamp(38px, 5.4vw, 60px);
  line-height: 1.06; letter-spacing: -0.025em;
  margin: 0 0 20px; font-weight: 800;
}
.hero h1 em { font-family: var(--serif); font-style: italic; font-weight: 600; }
.hero .lede {
  font-size: 19px; color: var(--muted); margin: 0 0 30px; max-width: 32em;
}
.hero-stats {
  display: flex; gap: 28px; flex-wrap: wrap;
  margin-top: 34px; padding-top: 26px; border-top: 1px solid var(--rule);
}
.hero-stats div { font-size: 14px; color: var(--muted); }
.hero-stats strong { display: block; font-size: 17px; color: var(--ink); letter-spacing: -0.01em; }

/* ---------- Phone mockup ---------- */

.phone {
  width: 320px; margin: 0 auto;
  background: #111;
  border-radius: 46px; padding: 10px;
  box-shadow: 0 30px 60px -20px rgba(11, 11, 15, 0.35);
}
.phone .screen {
  background: #fafaf8; border-radius: 38px; overflow: hidden;
  position: relative;
  padding: 18px 18px 16px;
  min-height: 560px;
  display: flex; flex-direction: column;
}
.phone .notch {
  width: 110px; height: 26px; background: #111; border-radius: 999px;
  margin: 0 auto 14px; flex: none;
}
.phone .reader-title {
  font-size: 11px; letter-spacing: 0.16em; text-transform: uppercase;
  color: #6d6d68; text-align: center; margin-bottom: 14px;
}
.phone .page {
  font-family: var(--serif); font-size: 13.5px; line-height: 1.72; color: #2b2925;
}
.phone .page p { margin: 0 0 10px; }
.phone .page .hl { background: #f6e7b3; border-radius: 3px; padding: 0 2px; }
.phone .chat {
  margin-top: auto; display: flex; flex-direction: column; gap: 8px; padding-top: 14px;
}
.phone .bubble {
  max-width: 88%; font-size: 12.5px; line-height: 1.5;
  padding: 9px 13px; border-radius: 16px;
}
.phone .bubble.you {
  align-self: flex-end; background: #111; color: #fff; border-bottom-right-radius: 5px;
}
.phone .bubble.ai {
  align-self: flex-start; background: #ececea; color: #2b2925; border-bottom-left-radius: 5px;
}
.phone .bubble.ai .who, .phone .bubble.you .who {
  display: block; font-size: 9.5px; letter-spacing: 0.1em; text-transform: uppercase;
  opacity: 0.75; margin-bottom: 3px;
}

/* ---------- Sections ---------- */

.section { padding: 88px 0; }
.section.tight { padding: 64px 0; }
.kicker {
  font-size: 13px; font-weight: 700; letter-spacing: 0.14em; text-transform: uppercase;
  color: var(--faint); margin: 0 0 14px;
}
.section h2 {
  font-size: clamp(30px, 4vw, 42px); line-height: 1.12; letter-spacing: -0.02em;
  margin: 0 0 16px; font-weight: 800;
}
.section .sub { font-size: 18px; color: var(--muted); max-width: 38em; margin: 0 0 44px; }
.center { text-align: center; }
.center .sub { margin-left: auto; margin-right: auto; }

/* Format strip */
.strip {
  border-top: 1px solid var(--rule); border-bottom: 1px solid var(--rule);
  padding: 18px 0;
}
.strip ul {
  list-style: none; margin: 0; padding: 0;
  display: flex; justify-content: center; gap: 14px 40px; flex-wrap: wrap;
  font-size: 13.5px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--faint);
}

/* ---------- Book showcase ---------- */

.shelf {
  display: grid; grid-template-columns: repeat(4, 1fr); gap: 28px 24px;
}
.shelf-item { display: flex; flex-direction: column; }
.cover {
  aspect-ratio: 2 / 3;
  border-radius: 10px;
  padding: 18px 16px;
  display: flex; flex-direction: column;
  color: #fff;
  font-family: var(--serif);
  box-shadow: 0 14px 28px -14px rgba(11, 11, 15, 0.4), inset 0 0 0 1px rgba(255, 255, 255, 0.08);
  position: relative;
}
.cover::before {
  content: "";
  position: absolute; inset: 0 auto 0 10px; width: 1px;
  background: rgba(255, 255, 255, 0.22);
}
.cover .c-title {
  font-size: 19px; line-height: 1.2; font-weight: 600; margin-top: auto;
}
.cover .c-author {
  font-size: 12px; opacity: 0.75; margin-top: 8px;
  letter-spacing: 0.06em; text-transform: uppercase; font-family: var(--sans);
}
.cover.meditations { background: linear-gradient(160deg, #2e4a3f, #1a2d26); }
.cover.republic    { background: linear-gradient(160deg, #7a3b2e, #4c2018); }
.cover.tao         { background: linear-gradient(160deg, #33415e, #1d2438); }
.cover.warpeace    { background: linear-gradient(160deg, #5c5148, #35302b); }
.cover.dracula     { background: linear-gradient(160deg, #641e26, #33090d); }
.cover.pride       { background: linear-gradient(160deg, #46605e, #263c3a); }
.cover.origin      { background: linear-gradient(160deg, #6b6032, #3f3a1c); }
.cover.odyssey     { background: linear-gradient(160deg, #275069, #123047); }
.shelf-item .ask {
  margin-top: 14px;
  font-size: 13.5px; line-height: 1.45; color: var(--muted);
  background: var(--card); border-radius: var(--radius-sm);
  padding: 10px 14px;
}
.shelf-item .ask::before { content: "“"; }
.shelf-item .ask::after { content: "”"; }

/* ---------- Features ---------- */

.features {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px;
}
.feature {
  background: var(--card); border-radius: var(--radius);
  padding: 28px 26px;
}
.feature .icon {
  width: 44px; height: 44px; border-radius: 12px;
  background: #fff; border: 1px solid var(--rule);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: 18px;
}
.feature h3 { margin: 0 0 8px; font-size: 18px; letter-spacing: -0.01em; }
.feature p { margin: 0; font-size: 15px; color: var(--muted); }

/* ---------- Dark highlight ---------- */

.dark-band {
  background: var(--dark); color: var(--dark-ink);
  border-radius: 32px;
  padding: 72px 56px;
  display: grid; grid-template-columns: 1.1fr 0.9fr; gap: 48px; align-items: center;
}
.dark-band .kicker { color: #9a9aa5; }
.dark-band h2 { color: var(--dark-ink); }
.dark-band p { color: var(--dark-muted); font-size: 17px; }
.dark-band .demo {
  background: #17171d; border: 1px solid #26262e; border-radius: var(--radius);
  padding: 24px; font-size: 14px; line-height: 1.55;
}
.dark-band .demo .q { color: var(--dark-ink); font-weight: 600; margin: 0 0 10px; }
.dark-band .demo .a { color: var(--dark-muted); margin: 0; }
.dark-band .demo .a strong { color: var(--dark-ink); font-weight: 600; }
.dark-band .demo + .demo { margin-top: 14px; }

/* ---------- Principles ---------- */

.principles { display: grid; grid-template-columns: repeat(3, 1fr); gap: 20px; }
.principle {
  border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 30px 28px;
}
.principle h3 { margin: 0 0 10px; font-size: 19px; font-family: var(--serif); font-weight: 600; }
.principle p { margin: 0; font-size: 15px; color: var(--muted); }

/* ---------- FAQ ---------- */

.faq { max-width: 760px; margin: 0 auto; }
.faq details {
  border-bottom: 1px solid var(--rule);
}
.faq summary {
  cursor: pointer; list-style: none;
  display: flex; align-items: center; justify-content: space-between; gap: 20px;
  padding: 22px 4px;
  font-size: 17.5px; font-weight: 600; letter-spacing: -0.01em;
}
.faq summary::-webkit-details-marker { display: none; }
.faq summary::after {
  content: "+"; font-size: 22px; font-weight: 400; color: var(--faint);
  flex: none; width: 24px; text-align: center;
  transition: transform 0.2s ease;
}
.faq details[open] summary::after { transform: rotate(45deg); }
.faq .answer { padding: 0 4px 24px; color: var(--muted); font-size: 16px; max-width: 44em; }
.faq .answer p { margin: 0 0 12px; }
.faq .answer p:last-child { margin-bottom: 0; }

/* ---------- CTA band ---------- */

.cta-band {
  background: var(--card); border-radius: 32px;
  padding: 72px 40px; text-align: center;
}
.cta-band .badges { justify-content: center; margin-top: 30px; }

/* ---------- Footer ---------- */

.site-footer {
  border-top: 1px solid var(--rule);
  padding: 56px 0 40px; margin-top: 40px;
  font-size: 14.5px;
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr; gap: 40px;
}
.footer-brand p { color: var(--muted); margin: 12px 0 20px; max-width: 26em; }
.site-footer h3 {
  font-size: 12.5px; letter-spacing: 0.12em; text-transform: uppercase;
  color: var(--faint); margin: 0 0 14px;
}
.site-footer ul { list-style: none; margin: 0; padding: 0; }
.site-footer li { margin-bottom: 10px; }
.site-footer a { color: var(--muted); text-decoration: none; }
.site-footer a:hover { color: var(--ink); }
.footer-legal {
  margin-top: 44px; padding-top: 24px; border-top: 1px solid var(--rule);
  color: var(--faint); font-size: 13.5px;
  display: flex; justify-content: space-between; gap: 16px; flex-wrap: wrap;
}

/* ---------- Blog & prose pages ---------- */

.page-head { padding: 72px 0 8px; }
.page-head h1 {
  font-size: clamp(34px, 4.6vw, 52px); letter-spacing: -0.025em; line-height: 1.08;
  margin: 0 0 16px; font-weight: 800;
}
.page-head .meta { color: var(--faint); font-size: 15px; }

.post-list { display: grid; gap: 24px; padding: 44px 0 88px; }
.post-card {
  display: block; text-decoration: none;
  border: 1px solid var(--rule); border-radius: var(--radius);
  padding: 32px;
}
.post-card:hover { background: var(--card); }
.post-card h2 { margin: 0 0 10px; font-size: 24px; letter-spacing: -0.015em; line-height: 1.25; }
.post-card p { margin: 0 0 14px; color: var(--muted); font-size: 16px; }
.post-card .meta { color: var(--faint); font-size: 14px; }

.post-hero { margin: 28px 0 8px; }
.post-hero img { width: 100%; height: auto; border-radius: 16px; display: block; }
.post-hero figcaption { font-size: 13px; color: var(--faint); margin-top: 10px; }

.cta-mid {
  background: var(--dark); color: var(--dark-ink);
  border-radius: var(--radius);
  padding: 26px 28px; margin: 36px 0;
  display: flex; align-items: center; justify-content: space-between;
  gap: 20px; flex-wrap: wrap;
}
.cta-mid p, .prose .cta-mid p { margin: 0; font-size: 16px; max-width: 30em; color: var(--dark-ink); }
.cta-mid p span, .prose .cta-mid p span { display: block; font-size: 13.5px; color: var(--dark-muted); margin-top: 4px; }
.cta-mid .pill { flex: none; background: #fff; color: #0b0b0f; font-size: 15px; padding: 12px 24px; }

.series { border: 1px solid var(--rule); border-radius: var(--radius); padding: 24px 28px; margin: 40px 0 0; }
.series h2 { font-size: 15px; letter-spacing: 0.1em; text-transform: uppercase; margin: 0 0 14px; color: var(--faint); }
.series ul { margin: 0; padding-left: 20px; }
.series li { margin-bottom: 8px; font-size: 16px; }

.prose { padding: 8px 0 88px; }
.prose > * { max-width: 680px; }
.prose p, .prose li { font-size: 17.5px; line-height: 1.75; color: #2c2c33; }
.prose h2 { font-size: 27px; letter-spacing: -0.015em; margin: 44px 0 14px; }
.prose h3 { font-size: 20px; margin: 32px 0 10px; }
.prose blockquote {
  margin: 28px 0; padding: 4px 0 4px 24px;
  border-left: 3px solid var(--ink);
  font-family: var(--serif); font-style: italic; font-size: 19px; color: var(--ink);
}
.prose hr { border: none; border-top: 1px solid var(--rule); margin: 40px 0; }
.prose .post-cta {
  background: var(--card); border-radius: var(--radius);
  padding: 28px 30px; margin-top: 48px;
}
.prose .post-cta p { margin: 0 0 18px; }

/* ---------- Responsive ---------- */

@media (max-width: 900px) {
  .hero-grid, .dark-band { grid-template-columns: 1fr; }
  .shelf { grid-template-columns: repeat(2, 1fr); }
  .features, .principles { grid-template-columns: 1fr 1fr; }
  .footer-grid { grid-template-columns: 1fr 1fr; }
  .dark-band { padding: 48px 28px; }
}

@media (max-width: 600px) {
  .site-nav { display: none; }
  .hero { padding: 48px 0 24px; }
  .section { padding: 64px 0; }
  .features, .principles { grid-template-columns: 1fr; }
  .footer-grid { grid-template-columns: 1fr; gap: 32px; }
  .phone { width: 290px; }
  .cta-band { padding: 56px 24px; border-radius: 24px; }
  .dark-band { border-radius: 24px; }
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .faq summary::after { transition: none; }
}