/* ==========================================
   LIFE WITH AI — GLOBAL STYLES
   Field journal aesthetic. Paper, ink, sparse.
   ========================================== */

@import url('https://fonts.googleapis.com/css2?family=Cormorant:ital,wght@0,400;0,500;0,600;0,700;1,400;1,500&family=Spectral:ital,wght@0,300;0,400;0,500;1,300;1,400&family=Caveat:wght@400;500;600&display=swap');

:root {
  --paper: #F5F0E8;
  --paper-dark: #EDE6D8;
  --paper-deep: #E3DCD0;
  --ink: #2A2622;
  --ink-light: #5C564E;
  --ink-faint: #9B9488;
  --ink-ghost: #C4BEB4;
  --teal: #5B8A8A;
  --teal-light: rgba(91,138,138,0.13);
  --teal-wash: rgba(91,138,138,0.05);
  --rust: #B85C38;
  --rust-light: rgba(184,92,56,0.12);
  --amber: #C4963C;
  --amber-light: rgba(196,150,60,0.12);
  --blue: #2C4A6E;
  --blue-light: rgba(44,74,110,0.12);
  --violet: #7B6B8A;
  --violet-light: rgba(123,107,138,0.12);
  --font-display: 'Cormorant', Georgia, serif;
  --font-body: 'Spectral', Georgia, serif;
  --font-hand: 'Caveat', cursive;
  --max-width: 820px;
  --gutter: 2.5rem;
}

* { margin: 0; padding: 0; box-sizing: border-box; }

html {
  font-size: 18px;
  scroll-behavior: smooth;
}

body {
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-weight: 400;
  line-height: 1.7;
  overflow-x: hidden;
}

/* Paper grain overlay */
body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1000;
  background-image:
    url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23n)' opacity='0.03'/%3E%3C/svg%3E");
  opacity: 0.5;
}

/* ==================== LAYOUT ==================== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
}

.page-content {
  padding-top: 7rem;
  padding-bottom: 4rem;
}

/* ==================== NAVIGATION ==================== */
nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 1.2rem var(--gutter);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: var(--paper);
  border-bottom: 1px solid var(--paper-dark);
  transition: box-shadow 0.3s ease;
}

nav.scrolled {
  box-shadow: 0 2px 20px rgba(42,38,34,0.06);
}

.nav-mark {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--ink);
  text-decoration: none;
}

.nav-mark span { color: var(--teal); }

.nav-links {
  display: flex;
  gap: 2rem;
  list-style: none;
  align-items: center;
}

.nav-links a {
  font-family: var(--font-body);
  font-size: 0.82rem;
  font-weight: 400;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-light);
  text-decoration: none;
  transition: color 0.2s;
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--teal);
  transition: width 0.3s ease;
}

.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after { width: 100%; background: var(--teal); }

.subscribe-btn {
  font-family: var(--font-body) !important;
  font-size: 0.78rem !important;
  letter-spacing: 0.08em !important;
  text-transform: uppercase !important;
  padding: 0.5rem 1.3rem !important;
  border: 1px solid var(--ink) !important;
  color: var(--ink) !important;
  background: transparent !important;
  cursor: pointer;
  transition: all 0.2s ease !important;
  text-decoration: none !important;
}

.subscribe-btn:hover {
  background: var(--ink) !important;
  color: var(--paper) !important;
}

/* ==================== TYPOGRAPHY ==================== */
.page-title {
  font-family: var(--font-display);
  font-size: 2.8rem;
  font-weight: 400;
  line-height: 1.2;
  color: var(--ink);
  margin-bottom: 1rem;
}

.page-title em { font-style: italic; color: var(--teal); }

.page-subtitle {
  font-family: var(--font-body);
  font-size: 1.05rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--ink-light);
  max-width: 560px;
  margin-bottom: 3rem;
}

.section-label {
  font-family: var(--font-hand);
  font-size: 1.1rem;
  color: var(--teal);
  margin-bottom: 2.5rem;
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--teal);
  opacity: 0.2;
}

h2.section-heading {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 1.5rem;
}

/* ==================== DIVIDERS ==================== */
.divider {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 var(--gutter);
  opacity: 0.3;
}

.divider hr {
  border: none;
  height: 1px;
  background: var(--ink);
}

/* ==================== PROSE (journal entries, stories) ==================== */
.prose {
  font-family: var(--font-body);
  font-size: 1rem;
  font-weight: 300;
  line-height: 1.85;
  color: var(--ink-light);
}

.prose p { margin-bottom: 1.2rem; }
.prose p:last-child { margin-bottom: 0; }

.prose strong {
  font-weight: 500;
  color: var(--ink);
}

.prose em { font-style: italic; }

.prose blockquote {
  border-left: 2px solid var(--teal);
  padding-left: 1.5rem;
  margin: 1.5rem 0;
  color: var(--ink-light);
  font-style: italic;
}

/* ==================== CARDS ==================== */
.card-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.5rem;
}

.card {
  border: 1px solid var(--paper-dark);
  padding: 2rem;
  transition: all 0.3s ease;
  text-decoration: none;
  color: var(--ink);
  background: var(--paper);
  display: block;
}

.card:hover {
  border-color: var(--teal);
  transform: translateY(-2px);
  box-shadow: 0 4px 20px rgba(91,138,138,0.08);
}

.card-accent {
  width: 24px;
  height: 3px;
  margin-bottom: 1.2rem;
}

.card h4 {
  font-family: var(--font-display);
  font-size: 1.25rem;
  font-weight: 500;
  margin-bottom: 0.7rem;
}

.card p {
  font-family: var(--font-body);
  font-size: 0.88rem;
  font-weight: 300;
  line-height: 1.7;
  color: var(--ink-light);
}

.card .card-tag {
  font-family: var(--font-hand);
  font-size: 0.85rem;
  color: var(--ink-faint);
  margin-top: 1rem;
  display: block;
}

/* ==================== ARCHIVE LIST ==================== */
.archive-list {
  list-style: none;
}

.archive-item {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  padding: 1.1rem 0;
  border-bottom: 1px solid var(--paper-dark);
  text-decoration: none;
  color: var(--ink);
  transition: all 0.2s ease;
}

.archive-item:hover {
  padding-left: 0.5rem;
  border-bottom-color: var(--teal);
}

.archive-item-left {
  display: flex;
  align-items: center;
}

.archive-item-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  margin-right: 0.8rem;
  flex-shrink: 0;
  opacity: 0.6;
}

.archive-item-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
}

.archive-item-meta {
  font-family: var(--font-body);
  font-size: 0.82rem;
  color: var(--ink-faint);
  white-space: nowrap;
  margin-left: 2rem;
}

/* ==================== ABOUT STRIP ==================== */
.about-strip {
  background: var(--paper-dark);
  padding: 5rem var(--gutter);
  position: relative;
}

.about-strip::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--ink-faint), transparent);
  opacity: 0.3;
}

.about-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
}

.about-col h3 {
  font-family: var(--font-display);
  font-size: 1.5rem;
  font-weight: 500;
  margin-bottom: 1.2rem;
}

.about-col p {
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 300;
  line-height: 1.8;
  color: var(--ink-light);
  margin-bottom: 1rem;
}

.hand-note {
  font-family: var(--font-hand);
  font-size: 1.05rem;
  color: var(--teal);
  margin-top: 1.5rem;
  transform: rotate(-1deg);
  display: inline-block;
}

/* ==================== STATS ROW ==================== */
.stats-row {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 1.5rem;
  margin: 2rem 0;
}

.stat-card {
  padding: 1.5rem;
  border: 1px solid var(--paper-dark);
  background: var(--paper);
  text-align: center;
}

.stat-number {
  font-family: var(--font-display);
  font-size: 2.2rem;
  font-weight: 600;
  color: var(--ink);
  line-height: 1.2;
}

.stat-label {
  font-family: var(--font-body);
  font-size: 0.78rem;
  color: var(--ink-faint);
  text-transform: uppercase;
  letter-spacing: 0.06em;
  margin-top: 0.3rem;
}

.stat-note {
  font-family: var(--font-hand);
  font-size: 0.8rem;
  color: var(--teal);
  margin-top: 0.3rem;
}

/* ==================== DATA VIZ ==================== */
.chart-container {
  border: 1px solid var(--paper-dark);
  padding: 2rem;
  margin: 2rem 0;
  background: var(--paper);
  position: relative;
}

.chart-title {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 500;
  margin-bottom: 0.3rem;
}

.chart-subtitle {
  font-family: var(--font-body);
  font-size: 0.82rem;
  color: var(--ink-faint);
  margin-bottom: 1.5rem;
}

.chart-annotation {
  position: absolute;
  font-family: var(--font-hand);
  font-size: 0.85rem;
  color: var(--ink-faint);
  transform: rotate(-2deg);
}

/* ==================== ENTRY PAGE ==================== */
.entry-header {
  margin-bottom: 3rem;
}

.entry-date {
  font-family: var(--font-display);
  font-size: 1.8rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.entry-number {
  font-family: var(--font-hand);
  font-size: 1rem;
  color: var(--teal);
}

.entry-body {
  max-width: 640px;
}

.entry-signoff {
  font-family: var(--font-body);
  font-size: 1rem;
  font-style: italic;
  color: var(--ink-light);
  margin-top: 2.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--paper-dark);
}

/* ==================== STORY PAGE ==================== */
.story-header {
  margin-bottom: 3rem;
}

.story-title {
  font-family: var(--font-display);
  font-size: 2.4rem;
  font-weight: 400;
  color: var(--ink);
  margin-bottom: 0.5rem;
}

.story-byline {
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--ink-faint);
}

.story-body {
  max-width: 640px;
}

/* ==================== FORMS ==================== */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  font-family: var(--font-body);
  font-size: 0.85rem;
  font-weight: 500;
  color: var(--ink);
  margin-bottom: 0.4rem;
  letter-spacing: 0.02em;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.7rem 1rem;
  font-family: var(--font-body);
  font-size: 0.95rem;
  color: var(--ink);
  background: var(--paper);
  border: 1px solid var(--paper-deep);
  outline: none;
  transition: border-color 0.2s;
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--teal);
}

.form-group textarea {
  min-height: 160px;
  resize: vertical;
  line-height: 1.6;
}

.submit-btn {
  font-family: var(--font-body);
  font-size: 0.85rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.7rem 2rem;
  border: 1px solid var(--ink);
  color: var(--ink);
  background: transparent;
  cursor: pointer;
  transition: all 0.2s;
}

.submit-btn:hover {
  background: var(--ink);
  color: var(--paper);
}

/* ==================== FOOTER ==================== */
footer {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 3rem var(--gutter) 4rem;
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
}

.footer-left {
  font-family: var(--font-body);
  font-size: 0.8rem;
  color: var(--ink-faint);
  line-height: 1.6;
}

.footer-left a {
  color: var(--teal);
  text-decoration: none;
}

.footer-right {
  font-family: var(--font-hand);
  font-size: 0.95rem;
  color: var(--ink-faint);
  transform: rotate(-2deg);
}

/* ==================== ANIMATIONS ==================== */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.fade-up {
  opacity: 0;
  animation: fadeUp 0.8s ease forwards;
}

.fade-up-1 { animation-delay: 0.3s; }
.fade-up-2 { animation-delay: 0.5s; }
.fade-up-3 { animation-delay: 0.7s; }
.fade-up-4 { animation-delay: 0.9s; }

/* ==================== RESPONSIVE ==================== */
@media (max-width: 900px) {
  .card-grid { grid-template-columns: 1fr; }
  .about-inner { grid-template-columns: 1fr; gap: 2.5rem; }
  .stats-row { grid-template-columns: 1fr 1fr; }
}

@media (max-width: 640px) {
  html { font-size: 16px; }
  :root { --gutter: 1.5rem; }
  nav { padding: 1rem var(--gutter); }
  .nav-links { gap: 1rem; }
  .nav-links a { font-size: 0.75rem; }
  .page-title { font-size: 2.2rem; }
  .stats-row { grid-template-columns: 1fr; }
  footer {
    flex-direction: column;
    align-items: flex-start;
    gap: 1rem;
  }
  .subscribe-btn { display: none; }
}