/* =========================================================
   100 AI Prompts That Actually Save You Time — sales site
   Design tokens
   ========================================================= */
:root {
  --paper: #F7F5EE;
  --paper-alt: #EAF0EE;
  --ink: #1F2A44;
  --ink-soft: #5B6270;
  --teal: #2E6F73;
  --teal-deep: #1D4B4E;
  --amber: #C98A2E;
  --amber-deep: #9C6B21;
  --code-bg: #16233B;
  --code-bg-hover: #1C2D4B;
  --code-text: #F1EFE6;
  --code-muted: #93A3C2;
  --border: #DDD6C4;
  --border-soft: #D3DEDB;
  --max: 760px;
  --max-wide: 1080px;
  --radius: 10px;
  --serif: "Source Serif 4", Georgia, "Times New Roman", serif;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  --mono: "IBM Plex Mono", "SF Mono", Consolas, monospace;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

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

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

a { color: inherit; }

h1, h2, h3 {
  font-family: var(--serif);
  color: var(--ink);
  margin: 0 0 0.5em;
  line-height: 1.15;
  font-weight: 600;
}

p { margin: 0 0 1em; color: var(--ink); }

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.wrap-wide {
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 0 24px;
}

section { padding: 84px 0; }

@media (max-width: 640px) {
  section { padding: 56px 0; }
  body { font-size: 16px; }
}

.section-alt { background: var(--paper-alt); }

.kicker {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--teal-deep);
  letter-spacing: 0.02em;
  margin: 0 0 14px;
}

.lede {
  font-size: 20px;
  color: var(--ink-soft);
  max-width: 560px;
}

/* ---------- buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--sans);
  font-weight: 600;
  font-size: 16px;
  padding: 14px 28px;
  border-radius: 999px;
  text-decoration: none;
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: transform 0.15s ease, box-shadow 0.15s ease, background 0.15s ease;
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--amber);
  color: #1B1204;
  box-shadow: 0 1px 0 rgba(0,0,0,0.05);
}
.btn-primary:hover { background: var(--amber-deep); }

.btn-ghost {
  background: transparent;
  border-color: var(--ink);
  color: var(--ink);
  padding: 10px 20px;
  font-size: 15px;
}
.btn-ghost:hover { background: var(--ink); color: var(--paper); }

.btn-small {
  padding: 10px 18px;
  font-size: 14px;
}

/* ---------- top bar ---------- */
.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  background: rgba(247, 245, 238, 0.92);
  backdrop-filter: saturate(140%) blur(6px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner {
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 14px 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}
.brand {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 17px;
  color: var(--ink);
  text-decoration: none;
}
.brand span { color: var(--teal); }

/* ---------- hero ---------- */
.hero {
  padding: 72px 0 96px;
}
.hero-grid {
  display: grid;
  grid-template-columns: 1.05fr 0.95fr;
  gap: 56px;
  align-items: center;
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; gap: 40px; }
}

.hero h1 {
  font-size: clamp(34px, 4.6vw, 52px);
  letter-spacing: -0.01em;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  margin-top: 28px;
  flex-wrap: wrap;
}
.hero-note {
  font-size: 14px;
  color: var(--ink-soft);
}

.hero-visual .promptcard { margin: 0; }

/* ---------- prompt card ---------- */
.promptcard {
  background: #fff;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 22px 22px 20px;
  margin-bottom: 18px;
}
.promptcard-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 6px;
}
.promptcard-title {
  font-family: var(--serif);
  font-weight: 600;
  font-size: 19px;
  color: var(--ink);
}
.promptcard-cat {
  font-family: var(--mono);
  font-size: 11.5px;
  color: var(--teal-deep);
  white-space: nowrap;
}
.promptcard-when {
  font-size: 14.5px;
  color: var(--ink-soft);
  font-style: italic;
  margin-bottom: 14px;
}

.promptbox {
  background: var(--code-bg);
  border-radius: 8px;
  padding: 16px 18px;
  position: relative;
}
.promptbox-label {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--code-muted);
  margin-bottom: 8px;
}
.promptbox-text {
  font-family: var(--mono);
  font-size: 14.5px;
  line-height: 1.65;
  color: var(--code-text);
  white-space: pre-wrap;
  margin: 0 0 16px;
}
.copy-btn {
  font-family: var(--sans);
  font-weight: 600;
  font-size: 13.5px;
  background: var(--amber);
  color: #1B1204;
  border: none;
  border-radius: 999px;
  padding: 8px 16px;
  cursor: pointer;
  transition: background 0.15s ease, transform 0.1s ease;
}
.copy-btn:hover { background: var(--amber-deep); }
.copy-btn:active { transform: scale(0.97); }
.copy-btn[data-state="copied"] {
  background: var(--teal);
  color: #fff;
}

.promptcard-tip {
  font-size: 14px;
  color: var(--ink-soft);
  margin-top: 14px;
  padding-top: 14px;
  border-top: 1px solid var(--border-soft);
}
.promptcard-tip strong { color: var(--ink); }

/* ---------- problem / solution ---------- */
.two-col {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
  align-items: start;
}
@media (max-width: 800px) {
  .two-col { grid-template-columns: 1fr; gap: 36px; }
}

.inbox-mock {
  background: #fff;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 20px;
}
.inbox-row {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  padding: 11px 0;
  border-bottom: 1px solid var(--border-soft);
  font-size: 14.5px;
}
.inbox-row:last-child { border-bottom: none; }
.inbox-subject { color: var(--ink); }
.inbox-tag {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--ink-soft);
  white-space: nowrap;
  align-self: center;
}

/* ---------- anatomy list ---------- */
.anatomy {
  display: grid;
  gap: 22px;
  margin-top: 32px;
}
.anatomy-item {
  display: grid;
  grid-template-columns: 40px 1fr;
  gap: 16px;
  align-items: baseline;
}
.anatomy-num {
  font-family: var(--mono);
  color: var(--teal);
  font-size: 15px;
}
.anatomy-item h3 {
  font-size: 18px;
  display: inline;
  margin-right: 8px;
}
.anatomy-item p { display: inline; color: var(--ink-soft); margin: 0; }

/* ---------- contents-style category list ---------- */
.contents-list {
  margin-top: 28px;
  border-top: 1px solid var(--border);
}
.contents-row {
  display: flex;
  align-items: baseline;
  gap: 14px;
  padding: 16px 0;
  border-bottom: 1px solid var(--border);
}
.contents-num {
  font-family: var(--serif);
  font-size: 22px;
  color: var(--teal);
  min-width: 34px;
}
.contents-name {
  font-family: var(--serif);
  font-size: 19px;
  color: var(--ink);
  flex: 1;
}
.contents-leader {
  flex: 1;
  border-bottom: 1px dotted var(--border);
  margin-bottom: 6px;
  min-width: 20px;
}
.contents-count {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--ink-soft);
  white-space: nowrap;
}

/* ---------- filter chips ---------- */
.filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 32px 0 34px;
}
.chip {
  font-family: var(--sans);
  font-size: 14px;
  font-weight: 600;
  padding: 8px 16px;
  border-radius: 999px;
  border: 1.5px solid var(--border);
  background: #fff;
  color: var(--ink-soft);
  cursor: pointer;
  transition: all 0.15s ease;
}
.chip:hover { border-color: var(--teal); color: var(--teal-deep); }
.chip[aria-pressed="true"] {
  background: var(--ink);
  border-color: var(--ink);
  color: var(--paper);
}

.promptgrid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 20px;
}
@media (max-width: 800px) {
  .promptgrid { grid-template-columns: 1fr; }
}
.promptgrid .promptcard { margin-bottom: 0; }

/* ---------- who it's for ---------- */
.audience-line {
  font-size: 20px;
  line-height: 1.85;
  max-width: 680px;
  color: var(--ink-soft);
}
.audience-line strong { color: var(--ink); font-weight: 600; }

/* ---------- purchase ---------- */
.purchase {
  background: var(--ink);
  color: var(--paper);
  border-radius: 18px;
  padding: 56px 48px;
  text-align: center;
}
@media (max-width: 640px) {
  .purchase { padding: 40px 24px; }
}
.purchase h2 { color: var(--paper); }
.purchase p { color: #C9CEDA; }
.purchase .btn-primary { margin-top: 8px; }
.purchase-meta {
  margin-top: 18px;
  font-size: 14px;
  color: #93A3C2;
}

/* ---------- faq ---------- */
.faq-item {
  border-bottom: 1px solid var(--border);
}
.faq-item summary {
  font-family: var(--serif);
  font-size: 18px;
  padding: 22px 0;
  cursor: pointer;
  list-style: none;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  color: var(--ink);
}
.faq-item summary::-webkit-details-marker { display: none; }
.faq-item summary::after {
  content: "+";
  font-family: var(--sans);
  font-size: 22px;
  color: var(--teal);
  flex-shrink: 0;
  transition: transform 0.2s ease;
}
.faq-item[open] summary::after { transform: rotate(45deg); }
.faq-item p {
  padding-bottom: 22px;
  color: var(--ink-soft);
  max-width: 640px;
}

/* ---------- final cta ---------- */
.final-cta {
  text-align: center;
}
.final-cta h2 { font-size: clamp(28px, 4vw, 40px); }

/* ---------- footer ---------- */
footer {
  padding: 40px 0;
  border-top: 1px solid var(--border);
}
.footer-inner {
  max-width: var(--max-wide);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  font-size: 13.5px;
  color: var(--ink-soft);
}

/* ---------- thank you page ---------- */
.ty-wrap {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 40px 24px;
}
.ty-card {
  max-width: 520px;
  text-align: center;
}
.ty-mark {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: var(--teal);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 26px;
  margin: 0 auto 24px;
}
.ty-card h1 { font-size: clamp(28px, 4vw, 36px); }
.ty-card .btn-primary { margin-top: 12px; }
.ty-hint {
  margin-top: 28px;
  font-size: 14px;
  color: var(--ink-soft);
}

/* ---------- reduced motion ---------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  * { transition: none !important; }
}

/* ---------- focus visibility ---------- */
a:focus-visible, button:focus-visible, summary:focus-visible {
  outline: 2px solid var(--teal);
  outline-offset: 2px;
}