/* ===== Base: variables, utilities, shared components (loaded on every page) ===== */

/* ===== Base Variables ===== */
:root {
  --terracotta:        #D97757;
  --terracotta-dim:    #B85F42;
  --terracotta-muted:  rgba(217, 119, 87, 0.12);
  --terracotta-border: rgba(217, 119, 87, 0.50);

  --surface-base:    #1C1917;
  --surface-raised:  #231F1D;
  --surface-overlay: #2C2724;
  --surface-subtle:  #292421;

  --text-primary:   #E8E3DC;
  --text-secondary: #A89A8A;
  --text-faint:     #8a7e76;
  --text-inverse:   #1C1917;

  --border-default: #2E2926;
  --border-subtle:  #252220;
  --border-strong:  #403730;

  /* Typography: Poppins = headings, Lora = body text, mono = terminal-style decoration */
  --font-heading: 'Poppins', 'Helvetica Neue', Arial, sans-serif;
  --font-body:    'Lora', Georgia, 'Times New Roman', serif;
  --font-mono:    'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;

  /* Legacy aliases — keeps all existing var(--gold) references working */
  --gold:       var(--terracotta);
  --gold-dark:  var(--terracotta-dim);
  --black:      #1C1917;
  --dark-gray:  var(--text-primary);
  --warm-cream: var(--surface-subtle);
  --white:      var(--surface-base);
  --tan:        var(--terracotta);
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: var(--border-strong) var(--surface-raised);
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  margin: 0;
  background: var(--surface-base);
  color: var(--text-primary);
  transition: background 0.3s, color 0.3s;
  -webkit-font-smoothing: antialiased;
}

*, *::before, *::after {
  box-sizing: border-box;
}

/* ===== Dot Grid Background (hero only) ===== */

a { text-decoration: none; color: inherit; }

h1, h2, h3, h4 {
  font-family: var(--font-heading);
  letter-spacing: -0.03em;
}

/* ===== Utility ===== */
.container {
  max-width: 1280px;
  margin: 0 auto;
  padding: 0 1rem;
}

.text-gold      { color: var(--terracotta); }
.text-terracotta { color: var(--terracotta); }
.text-muted     { color: var(--text-secondary); }
.text-body      { color: var(--text-primary); }
.text-heading   { color: var(--text-primary); }
.bg-cream       { background: var(--surface-subtle); }
.bg-white-section { background: var(--surface-base); }

/* gradient-text → plain terracotta */
.gradient-text { color: var(--terracotta); }

/* accent → italic emphasis */
.accent { font-style: italic; }

/* Terminal prefix utility */
.term-prefix {
  color: var(--terracotta);
  font-weight: 400;
  user-select: none;
}

/* ===== Buttons ===== */
.btn-gold {
  display: inline-block;
  background: var(--terracotta);
  color: var(--text-inverse);
  padding: 0.75rem 1.75rem;
  border-radius: 3px;
  font-weight: 700;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background 0.2s;
  border: 1px solid var(--terracotta);
  cursor: pointer;
  position: relative;
}
.btn-gold:hover {
  background: var(--terracotta-dim);
  border-color: var(--terracotta-dim);
}

.btn-gold-outline {
  display: inline-block;
  background: transparent;
  color: var(--terracotta);
  padding: 0.75rem 1.75rem;
  border-radius: 3px;
  font-weight: 700;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  /* Hover fill sweeps in left to right via a growing background layer */
  background-image: linear-gradient(var(--terracotta), var(--terracotta));
  background-repeat: no-repeat;
  background-position: left center;
  background-size: 0% 100%;
  transition: background-size 0.3s ease, color 0.3s ease;
  border: 1px solid var(--terracotta);
  cursor: pointer;
}
.btn-gold-outline:hover {
  background-size: 100% 100%;
  color: var(--text-inverse);
}

.btn-outline {
  display: inline-block;
  border: 1px solid var(--border-strong);
  background: transparent;
  color: var(--text-primary);
  padding: 0.75rem 1.75rem;
  border-radius: 3px;
  font-weight: 600;
  font-size: 0.8rem;
  font-family: var(--font-mono);
  transition: border-color 0.2s, color 0.2s;
}
.btn-outline:hover {
  border-color: var(--terracotta);
  color: var(--terracotta);
}

/* ===== Navbar ===== */
.navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 50;
  padding: 0 1rem;
  transition: background 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}
.navbar.scrolled {
  background: var(--surface-base);
  border-bottom-color: var(--border-default);
}

.navbar-inner {
  max-width: 1280px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

.nav-brand {
  font-size: 0.875rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: color 0.2s;
}

.nav-logo {
  display: block;
  height: 1.25rem;
  width: auto;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 1.5rem;
}
.nav-links a {
  font-size: 0.75rem;
  font-weight: 500;
  color: var(--text-secondary);
  transition: color 0.2s;
  letter-spacing: 0.04em;
}
.nav-links a:hover { color: var(--terracotta); }

/* Active state — no underline animation */
.nav-links a.active:not(.nav-cta) {
  color: var(--terracotta);
}

.nav-cta {
  background: var(--terracotta);
  color: var(--text-inverse) !important;
  padding: 0.4rem 1rem;
  border-radius: 3px;
  font-weight: 700;
  font-size: 0.7rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  transition: background 0.2s;
}
.nav-cta:hover { background: var(--terracotta-dim); }

.nav-cta-outline {
  /* Longhand, not the `background` shorthand, which would reset background-size */
  background-color: transparent !important;
  color: var(--terracotta) !important;
  border: 1px solid var(--terracotta);
  /* Hover fill sweeps in left to right via a growing background layer; !important so
     .nav-cta / .nav-cta:hover's `background` shorthand can't reset these */
  background-image: linear-gradient(var(--terracotta), var(--terracotta)) !important;
  background-repeat: no-repeat !important;
  background-position: left center !important;
  background-size: 0% 100% !important;
  transition: background-size 0.3s ease, color 0.3s ease !important;
}
.nav-cta.nav-cta-outline:hover {
  background-size: 100% 100% !important;
  color: var(--text-inverse) !important;
}

/* Hamburger */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--text-secondary);
  transition: transform 0.3s, opacity 0.3s;
}
.hamburger.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.hamburger.open span:nth-child(2) { opacity: 0; }
.hamburger.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

/* .navbar prefix outranks the later .terminal-frame padding */
.navbar .mobile-menu {
  display: none;
  margin: 0.75rem 0 0.75rem;
  padding: 1.25rem 1rem 1rem;
}
.navbar .mobile-menu.open { display: block; }
.mobile-menu-body {
  max-height: calc(100vh - 6.5rem);
  overflow-y: auto;
}
.mobile-menu-links a {
  display: block;
  padding: 0.7rem 0;
  font-size: 0.8rem;
  font-weight: 500;
  color: var(--text-secondary);
  border-bottom: 1px solid var(--border-subtle);
}
.mobile-menu-links a::before {
  content: '> ';
  color: var(--terracotta);
  font-weight: 700;
}
.mobile-menu-links a:hover,
.mobile-menu-links a.active { color: var(--terracotta); }
.mobile-menu-actions {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 0.625rem;
  margin-top: 1rem;
}
.mobile-menu-actions .nav-cta {
  display: block;
  padding: 0.7rem 0.5rem;
  text-align: center;
  white-space: nowrap;
}

@media (max-width: 768px) {
  .nav-links { display: none; }
  .hamburger { display: flex; }
}


/* ===== Scroll Animations ===== */
.fade-up {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 0.5s ease-out, transform 0.5s ease-out;
}
.fade-up.visible {
  opacity: 1;
  transform: translateY(0);
}

.stagger-item {
  opacity: 0;
  transform: translateY(10px);
  transition: opacity 0.4s ease-out, transform 0.4s ease-out;
}
.stagger-item.visible {
  opacity: 1;
  transform: translateY(0);
}

/* Hero entrance */
.hero-anim {
  opacity: 0;
  transition: opacity 0.6s ease-out;
}
.hero-anim.visible {
  opacity: 1;
}

/* ===== Section ===== */
.section {
  padding: 5rem 1rem;
}
.section-header {
  text-align: left;
  margin-bottom: 3rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--border-default);
}
.section-header h2 {
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  font-weight: 700;
  margin: 0 0 0.5rem 0;
  letter-spacing: -0.03em;
  color: var(--text-primary);
}
.section-header h2::before {
  content: '~/ ';
  color: var(--terracotta);
  font-weight: 400;
}
.section-header p {
  font-size: 0.85rem;
  max-width: 44rem;
  margin: 0;
  color: var(--text-secondary);
  line-height: 1.75;
}
/* Remove old accent spans in section headers */
.section-header .accent { font-style: italic; }
.section-header .gradient-text { color: var(--terracotta); }

/* ===== Cards Grid ===== */
.grid-4 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1rem;
}
.grid-3 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1rem;
}
.grid-2 {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1rem;
}

.card {
  background: var(--surface-raised);
  border: 1px solid var(--border-default);
  border-radius: 4px;
  padding: 1.75rem;
  transition: border-color 0.2s;
}
.card:hover {
  border-color: var(--terracotta);
}

.card-icon { font-size: 1.5rem; margin-bottom: 0.875rem; }
.card h3 {
  font-size: 0.95rem;
  font-weight: 700;
  margin: 0 0 0.5rem 0;
  letter-spacing: -0.01em;
  color: var(--text-primary);
}
.card p {
  font-size: 0.8125rem;
  line-height: 1.75;
  margin: 0;
  color: var(--text-secondary);
}

/* ===== Terminal Frame ===== */
/* --frame-page-bg is the color behind the frame (its section); the label fades from it into the interior */
.terminal-frame {
  --frame-page-bg: var(--surface-base);
  position: relative;
  border: 1px solid var(--terracotta-border);
  padding: 2rem 1.5rem 1.5rem;
  /* Dark interior: scanlines over a vignette over a dot grid (all background layers, so content is unaffected) */
  background-color: var(--surface-base);
  background-image:
    repeating-linear-gradient(
      to bottom,
      transparent 0px,
      transparent 3px,
      rgba(0, 0, 0, 0.07) 3px,
      rgba(0, 0, 0, 0.07) 4px
    ),
    radial-gradient(ellipse at center, transparent 40%, var(--surface-base) 85%),
    radial-gradient(circle, var(--border-strong) 1px, transparent 1px);
  background-size: auto, auto, 24px 24px;
}
.bg-cream .terminal-frame { --frame-page-bg: var(--surface-subtle); }
.footer .terminal-frame { --frame-page-bg: var(--surface-raised); }

/* Label is centered on the top border line; its backdrop fades from the page color
   into the interior, and its sides fade out so the border eases into the text */
.terminal-frame-label {
  position: absolute;
  top: 0;
  left: 1.25rem;
  z-index: 3;
  padding: 0.2rem 0.625rem;
  font-size: 0.6rem;
  font-weight: 700;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  line-height: 1.2;
  text-transform: lowercase;
  color: var(--terracotta);
  transform: translateY(-50%);
}
.terminal-frame-label::before {
  content: '';
  position: absolute;
  inset: 0;
  z-index: -1;
  background: linear-gradient(to bottom, var(--frame-page-bg) 30%, var(--surface-base) 70%);
  -webkit-mask-image: linear-gradient(to right, transparent, #000 0.375rem, #000 calc(100% - 0.375rem), transparent);
  mask-image: linear-gradient(to right, transparent, #000 0.375rem, #000 calc(100% - 0.375rem), transparent);
}

/* ===== Footer ===== */
.footer {
  background: var(--surface-raised);
  border-top: 1px solid var(--border-default);
  color: var(--text-secondary);
  padding: 3.5rem 1rem;
}
.footer-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 2.5rem;
  max-width: 1280px;
  margin: 0 auto;
}
.footer h3, .footer h4 {
  color: var(--text-primary);
  margin: 0 0 0.875rem 0;
}
.footer h4 {
  font-size: 0.62rem;
  text-transform: uppercase;
  letter-spacing: 0.12em;
  color: var(--text-faint);
}
.footer-logo {
  display: block;
  width: 100%;
  max-width: 260px;
  height: auto;
}
.footer p { font-size: 0.8125rem; line-height: 1.75; margin: 0; }
.footer ul { list-style: none; padding: 0; margin: 0; }
.footer li { margin-bottom: 0.4rem; }
.footer a {
  font-size: 0.8125rem;
  transition: color 0.2s;
}
.footer a:hover { color: var(--terracotta); }

/* Footer social icons */
.social-icons {
  display: flex;
  gap: 0.75rem;
  margin-top: 0.875rem;
}
.social-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: transparent;
}
.social-icon svg {
  width: 25px;
  height: 25px;
  fill: var(--terracotta);
  transition: fill 0.2s;
}
.social-icon:hover svg { fill: #fff; }

.footer-bottom {
  max-width: 1280px;
  margin: 2.5rem auto 0;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border-default);
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  font-size: 0.7rem;
  color: var(--text-faint);
}
.footer-bottom a { color: var(--text-secondary); font-size: 0.7rem; }
.footer-bottom a:hover { color: var(--terracotta); }
.footer-built { display: inline-flex; align-items: center; gap: 0.4rem; }
.footer-built-logo { width: 14px; height: 14px; display: block; }

/* ===== Scroll Progress Bar ===== */
.scroll-progress {
  position: fixed;
  top: 0;
  left: 0;
  height: 1px;
  width: 0%;
  background: var(--terracotta);
  z-index: 100;
  transition: width 0.1s linear;
}

/* ===== Custom Scrollbar ===== */
::-webkit-scrollbar {
  width: 6px;
}
::-webkit-scrollbar-track {
  background: var(--surface-raised);
}
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: 0;
  border: none;
}
::-webkit-scrollbar-thumb:hover {
  background: var(--terracotta);
}

/* ===== Back to Top Button ===== */
.back-to-top {
  position: fixed;
  bottom: 1.5rem;
  right: 1.5rem;
  width: 40px;
  height: 40px;
  border-radius: 3px;
  background: var(--surface-overlay);
  border: 1px solid var(--border-strong);
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  visibility: hidden;
  transform: translateY(8px);
  transition: opacity 0.3s, visibility 0.3s, transform 0.3s, border-color 0.2s, color 0.2s;
  z-index: 90;
  cursor: pointer;
}

.back-to-top.visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.back-to-top:hover {
  border-color: var(--terracotta);
  color: var(--terracotta);
  transform: translateY(0);
}

/* ===== Page top offset (pages without a hero sit below the fixed navbar) ===== */
main > .section:first-child {
  padding-top: 8rem;
}

/* ===== Feature intro (text 2/3 + art 1/3; mirror of .claude-intro) ===== */
.feature-intro {
  display: grid;
  grid-template-columns: 2fr 1fr;
  gap: 0;
  align-items: stretch;
}
.feature-intro-copy {
  /* Extend the divider through the terminal-frame padding to touch its top/bottom border */
  border-right: 1px solid var(--terracotta-border);
  padding: 2rem 3rem 1.5rem 0;
  margin: -2rem 0 -1.5rem;
}
.feature-intro-art {
  display: flex;
  align-items: center;
  justify-content: center;
  padding-left: 3rem;
}
.feature-intro-img { width: 100%; max-width: 280px; max-height: 280px; object-fit: contain; height: auto; display: block; }
/* Flipped variant: art on the left, text on the right */
.feature-intro-flip { grid-template-columns: 1fr 2fr; }
.feature-intro-flip .feature-intro-art { order: -1; padding-left: 0; padding-right: 3rem; }
.feature-intro-flip .feature-intro-copy {
  border-right: 0;
  border-left: 1px solid var(--terracotta-border);
  padding: 2rem 0 1.5rem 3rem;
}
.feature-intro-copy h2 {
  font-size: clamp(1.4rem, 3vw, 1.875rem);
  font-weight: 700;
  margin: 0 0 1.25rem 0;
  letter-spacing: -0.03em;
}
.feature-intro-copy h2::before { content: '~/ '; color: var(--terracotta); font-weight: 400; font-family: var(--font-mono); }
.feature-intro-copy p {
  font-size: 0.875rem;
  line-height: 1.85;
  margin: 0 0 1rem 0;
}
.feature-intro-copy p:last-child { margin-bottom: 0; }
@media (max-width: 768px) {
  .feature-intro { grid-template-columns: 1fr; gap: 2rem; }
  .feature-intro-copy {
    border-right: 0;
    border-bottom: 1px solid var(--terracotta-border);
    padding: 1.5rem 1.5rem 2rem;
    margin: -2rem -1.5rem 0;
  }
  .feature-intro-art, .feature-intro-flip .feature-intro-art { padding-left: 0; padding-right: 0; }
  .feature-intro-flip { grid-template-columns: 1fr; }
  .feature-intro-flip .feature-intro-copy { order: -1; border-left: 0; padding: 1.5rem 1.5rem 2rem; }
  .feature-intro-img { max-width: 200px; }
}

/* ===== Terminal-style text (monospace) ===== */
.term-prefix,
.btn-gold, .btn-gold-outline, .btn-outline,
.nav-brand, .nav-links a, .mobile-menu a,
.terminal-frame-label,
.section-header h2::before, .claude-intro-copy h2::before,
.hero-badge, .date-badge, .tech-tag, .coming-soon-badge,
.stat-label, .team-card .role,
.calendar-today-btn, .calendar-weekdays, .calendar-month-label,
.detail-date-label, .detail-all-heading, .detail-event-date,
.event-meta {
  font-family: var(--font-mono);
}