/* ═══════════════════════════════════════════════
   CoreTurf · Global Stylesheet
   Brand System v1.1 — exact tokens
   Fonts: Fraunces · IBM Plex Sans · DM Mono
═══════════════════════════════════════════════ */

/* Fonts loaded via <link rel="preconnect"> in each page's <head> — not @import */

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

/* ── BRAND TOKENS v1.1 — Light mode ── */
:root {
  /* Light surfaces */
  --dk-bg:          #EFF5F0;   /* warm sage background */
  --dk-surface:     #FFFFFF;   /* white cards */
  --dk-surface-hi:  #F7FAF7;   /* elevated / modals */
  --dk-outline:     #D8E5DA;   /* dividers, borders */
  --dk-text-1:      #0D2015;   /* primary text */
  --dk-text-2:      #2E5040;   /* secondary text */
  --dk-text-3:      #5A7D6B;   /* hint / labels */

  /* Brand — adjusted for light mode contrast */
  --primary:        #2D6A3F;   /* deep seed green — WCAG AA on white */
  --primary-seed:   #1A4A2A;   /* deeper green hover state */
  --amber:          #8A6C35;   /* earth gold — readable on light */

  /* Status */
  --status-ok:      #2D6A3F;
  --status-warn:    #8A6C35;
  --status-error:   #C23030;

  /* Shape */
  --r-sm:    8px;
  --r-md:    14px;
  --r-lg:    20px;
  --r-pill:  100px;
  --r-squircle: 22.4%;
}

/* ── BASE ── */
html { scroll-behavior: smooth; }

body {
  background: var(--dk-bg);
  color: var(--dk-text-1);
  font-family: 'IBM Plex Sans', sans-serif;
  font-size: 15px;
  line-height: 1.65;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
img { display: block; max-width: 100%; }
button { cursor: pointer; font-family: inherit; }

/* ── TOPO BACKGROUND ── */
.topo-bg {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  overflow: hidden;
}
.topo-bg svg {
  width: 100%;
  height: 100%;
  opacity: 0.12;
}

/* ── NAV ── */
.site-nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 22px 40px;
  transition: background 0.3s, padding 0.3s, border-color 0.3s;
  border-bottom: 1px solid transparent;
}
.site-nav.scrolled {
  background: rgba(239,245,240,0.92);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  padding: 14px 40px;
  border-bottom-color: var(--dk-outline);
}
.nav-inner {
  max-width: 1080px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}
.nav-wordmark {
  font-family: 'Fraunces', serif;
  font-weight: 700;
  font-size: 26px;
  letter-spacing: -0.03em;
  color: var(--dk-text-1);
  line-height: 1;
}
.nav-wordmark em { font-style: italic; font-weight: 200; color: var(--primary); }

.nav-links {
  display: flex;
  align-items: center;
  gap: 2px;
}
.nav-link {
  font-size: 13.5px;
  font-weight: 500;
  color: var(--dk-text-2);
  padding: 7px 13px;
  border-radius: var(--r-sm);
  transition: color 0.15s, background 0.15s;
  letter-spacing: -0.01em;
}
.nav-link:hover { color: var(--dk-text-1); background: var(--dk-surface); }
.nav-link.active { color: var(--dk-text-1); background: var(--dk-surface); }

.nav-cta {
  margin-left: 10px;
  font-size: 13px;
  font-weight: 600;
  color: #FFFFFF;
  background: var(--primary);
  padding: 8px 18px;
  border-radius: var(--r-pill);
  transition: background 0.15s, transform 0.15s;
  letter-spacing: -0.01em;
}
.nav-cta:hover { background: #1A4A2A; transform: scale(1.03); }

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: none;
  border: none;
  padding: 4px;
}
.nav-toggle span {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--dk-text-2);
  transition: transform 0.2s, opacity 0.2s;
  border-radius: 2px;
}
.nav-toggle.open span:nth-child(1) { transform: translateY(6.5px) rotate(45deg); }
.nav-toggle.open span:nth-child(2) { opacity: 0; }
.nav-toggle.open span:nth-child(3) { transform: translateY(-6.5px) rotate(-45deg); }

@media (max-width: 780px) {
  .site-nav { padding: 16px 20px; }
  .site-nav.scrolled { padding: 12px 20px; }
  .nav-toggle { display: flex; }
  .nav-links {
    display: none;
    position: absolute;
    top: 100%; left: 0; right: 0;
    background: rgba(239,245,240,0.98);
    backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--dk-outline);
    flex-direction: column;
    align-items: stretch;
    padding: 12px 20px 24px;
    gap: 2px;
  }
  .nav-links.open { display: flex; }
  .nav-link { padding: 11px 12px; border-radius: var(--r-sm); }
  .nav-cta { margin: 10px 0 0; text-align: center; padding: 12px 18px; }
}

/* ── LAYOUT ── */
.page {
  position: relative;
  z-index: 1;
  padding-top: 80px;
}
.container {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 40px;
}
@media (max-width: 600px) { .container { padding: 0 20px; } }

/* ── SECTION PATTERNS ── */
.section      { padding: 100px 0; }
.section-sm   { padding: 64px 0; }
.section-xs   { padding: 40px 0; }

.sec-label {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.25em;
  text-transform: uppercase;
  color: var(--dk-text-3);
  margin-bottom: 18px;
}
.sec-title {
  font-family: 'Fraunces', serif;
  font-weight: 700;
  font-size: clamp(28px, 4vw, 44px);
  letter-spacing: -0.025em;
  line-height: 1.12;
  color: var(--dk-text-1);
  margin-bottom: 16px;
}
.sec-title em { font-style: italic; font-weight: 200; color: var(--primary); }

.sec-body {
  font-size: 15px;
  font-weight: 300;
  color: var(--dk-text-2);
  line-height: 1.75;
  max-width: 580px;
}

/* ── AMBER RULE ── */
.amber-rule {
  width: 220px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--amber) 30%, var(--amber) 70%, transparent);
  margin: 28px 0;
}
.amber-rule-center { margin: 28px auto; }

/* ── CARD ── */
.card {
  background: var(--dk-surface);
  border: 1px solid var(--dk-outline);
  border-radius: var(--r-lg);
  padding: 32px;
  transition: border-color 0.2s, background 0.2s;
}
.card:hover { border-color: var(--primary-seed); background: var(--dk-surface-hi); }

/* ── BADGE / PILL ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: var(--dk-surface);
  border: 1px solid var(--dk-outline);
  border-radius: var(--r-pill);
  padding: 7px 16px;
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--dk-text-3);
}
.badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--primary);
  opacity: 0.6;
  flex-shrink: 0;
}

/* ── WORDMARK (standalone display) ── */
.wordmark {
  font-family: 'Fraunces', serif;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--dk-text-1);
  line-height: 1;
}
.wordmark em { font-style: italic; font-weight: 200; color: var(--primary); }

/* ── APP ICON ── */
.app-icon {
  border-radius: var(--r-squircle);
  overflow: hidden;
  box-shadow: 0 0 0 1px var(--dk-outline), 0 16px 48px rgba(13,32,21,0.10);
  flex-shrink: 0;
}
.app-icon svg { display: block; width: 100%; height: 100%; }

/* ── STORE BUTTONS ── */
.store-btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  background: var(--dk-surface);
  border: 1px solid var(--dk-outline);
  border-radius: var(--r-md);
  padding: 14px 22px;
  color: var(--dk-text-1);
  transition: transform 0.18s, border-color 0.18s, background 0.18s;
  min-width: 176px;
}
.store-btn:hover {
  transform: scale(1.03);
  border-color: var(--dk-text-3);
  background: var(--dk-surface-hi);
}
.store-btn-text { display: flex; flex-direction: column; gap: 1px; }
.store-btn-pre {
  font-family: 'DM Mono', monospace;
  font-size: 8.5px;
  letter-spacing: 0.1em;
  color: var(--dk-text-2);
}
.store-btn-name {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  white-space: nowrap;
}

/* ── STATUS CHIPS ── */
.chip {
  display: inline-flex;
  align-items: center;
  gap: 5px;
  border-radius: var(--r-pill);
  padding: 3px 10px 3px 8px;
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.08em;
  font-weight: 500;
}
.chip-ok   { background: rgba(45,106,63,0.2);  color: var(--primary); border: 1px solid rgba(45,106,63,0.3); }
.chip-warn { background: rgba(200,169,110,0.15); color: var(--amber);  border: 1px solid rgba(200,169,110,0.25); }
.chip-err  { background: rgba(217,79,79,0.15);  color: var(--status-error); border: 1px solid rgba(217,79,79,0.2); }
.chip-dot  { width: 5px; height: 5px; border-radius: 50%; background: currentColor; }

/* ── DIVIDER ── */
.divider {
  height: 1px;
  background: var(--dk-outline);
  margin: 0;
}

/* ── DATA LABEL ── */
.data-label {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--dk-text-3);
}

/* ── FOOTER ── */
.site-footer {
  border-top: 1px solid var(--dk-outline);
  padding: 56px 0 40px;
  margin-top: 40px;
}
.footer-inner {
  max-width: 1080px;
  margin: 0 auto;
  padding: 0 40px;
}
@media (max-width: 600px) { .footer-inner { padding: 0 20px; } }

.footer-top {
  display: flex;
  justify-content: space-between;
  gap: 48px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}
.footer-wordmark {
  font-family: 'Fraunces', serif;
  font-weight: 700;
  font-size: 28px;
  letter-spacing: -0.03em;
  color: var(--dk-text-1);
  line-height: 1;
  margin-bottom: 8px;
}
.footer-wordmark em { font-style: italic; font-weight: 200; color: var(--primary); }
.footer-tagline {
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--dk-text-3);
}

.footer-links-grid {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}
.footer-col {
  display: flex;
  flex-direction: column;
  gap: 10px;
  min-width: 80px;
}
.footer-col-label {
  font-family: 'DM Mono', monospace;
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--dk-text-3);
  margin-bottom: 2px;
}
.footer-col a {
  font-size: 13.5px;
  color: var(--dk-text-2);
  transition: color 0.15s;
}
.footer-col a:hover { color: var(--dk-text-1); }

.footer-bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  padding-top: 24px;
  border-top: 1px solid var(--dk-outline);
  font-family: 'DM Mono', monospace;
  font-size: 10px;
  color: var(--dk-text-3);
  letter-spacing: 0.05em;
}
.footer-social { display: flex; gap: 14px; }
.footer-social a {
  color: var(--dk-text-3);
  transition: color 0.15s;
  display: flex; align-items: center;
}
.footer-social a:hover { color: var(--dk-text-2); }

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(18px); }
  to   { opacity: 1; transform: translateY(0); }
}
@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
@keyframes scrollPulse {
  0%   { transform: scaleY(0); transform-origin: top; opacity: 1; }
  45%  { transform: scaleY(1); transform-origin: top; opacity: 1; }
  55%  { transform: scaleY(1); transform-origin: bottom; opacity: 1; }
  100% { transform: scaleY(0); transform-origin: bottom; opacity: 0; }
}

.fade-up {
  opacity: 0;
  transform: translateY(18px);
  animation: fadeUp 0.7s cubic-bezier(0.22,1,0.36,1) forwards;
}
.delay-1 { animation-delay: 0.10s; }
.delay-2 { animation-delay: 0.20s; }
.delay-3 { animation-delay: 0.32s; }
.delay-4 { animation-delay: 0.44s; }
.delay-5 { animation-delay: 0.56s; }

/* Intersection Observer targets */
.reveal {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s cubic-bezier(0.22,1,0.36,1), transform 0.6s cubic-bezier(0.22,1,0.36,1);
}
.reveal.visible { opacity: 1; transform: translateY(0); }
.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }

/* Reduced motion */
@media (prefers-reduced-motion: reduce) {
  .fade-up, .reveal, .hero-fade {
    animation: none;
    opacity: 1;
    transform: none;
    transition: none;
  }
}
