/* ========== BIÓDIS — Global Styles ========== */

@font-face {
  font-family: 'Hepta Slab';
  src: url('../assets/fonts/HeptaSlab.ttf') format('truetype-variations');
  font-weight: 100 900;
  font-display: swap;
}
@font-face {
  font-family: 'Outfit';
  src: url('../assets/fonts/Outfit.ttf') format('truetype-variations');
  font-weight: 100 900;
  font-display: swap;
}

:root {
  /* Biódis palette — extracted from brand ID */
  --bd-ink:        #0E1820;      /* deep navy / near-black */
  --bd-ink-2:      #131F2A;      /* card surfaces on dark */
  --bd-ink-3:      #1A2832;
  --bd-bone:       #F5F1E8;      /* warm off-white */
  --bd-paper:      #FAF7F0;
  --bd-green:      #4FAB3F;      /* primary green */
  --bd-green-2:    #6DC553;      /* lighter */
  --bd-green-3:    #2E7D22;      /* deeper */
  --bd-glow:       #8BE07A;
  --bd-rule:       rgba(245,241,232,.12);
  --bd-rule-dark:  rgba(14,24,32,.12);
  --bd-mute:       rgba(245,241,232,.60);
  --bd-mute-dark:  rgba(14,24,32,.60);

  --ff-display: 'Hepta Slab', 'Times New Roman', serif;
  --ff-body:    'Outfit', -apple-system, BlinkMacSystemFont, sans-serif;
  --ff-mono:    ui-monospace, 'SF Mono', Menlo, monospace;

  --ease-out: cubic-bezier(.22, 1, .36, 1);
  --ease-in-out: cubic-bezier(.65, 0, .35, 1);
}

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

html, body {
  background: var(--bd-ink);
  color: var(--bd-bone);
  font-family: var(--ff-body);
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
  scroll-behavior: smooth;
}

a { color: inherit; text-decoration: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; color: inherit; }
img { display: block; max-width: 100%; }
::selection { background: var(--bd-green); color: var(--bd-ink); }

/* ---------- Custom cursor ---------- */
.cursor-dot, .cursor-ring {
  position: fixed; top: 0; left: 0; pointer-events: none; z-index: 9999;
  transform: translate(-50%, -50%);
  will-change: transform;
  mix-blend-mode: difference;
}
.cursor-dot {
  width: 6px; height: 6px; background: var(--bd-green-2); border-radius: 50%;
  transition: transform .15s var(--ease-out);
}
.cursor-ring {
  width: 36px; height: 36px; border: 1px solid rgba(141,224,122,.6); border-radius: 50%;
  transition: transform .35s var(--ease-out), width .25s, height .25s, border-color .25s;
}
.cursor-ring.hover { width: 60px; height: 60px; border-color: var(--bd-green-2); }
@media (max-width: 900px) { .cursor-dot, .cursor-ring { display: none; } }

/* ---------- Loader ---------- */
.loader {
  position: fixed; inset: 0; background: var(--bd-ink); z-index: 9000;
  display: grid; place-items: center;
  transition: opacity .6s var(--ease-out), visibility .6s;
}
.loader.done { opacity: 0; visibility: hidden; }
.loader-inner { text-align: center; }
.loader-drop {
  width: 80px; height: auto; margin: 0 auto 22px; display: block;
  animation: drop-pulse 1.6s ease-in-out infinite;
}
.loader-label {
  font-family: var(--ff-display); font-weight: 600; letter-spacing: .22em;
  font-size: 11px; color: var(--bd-mute); text-transform: uppercase;
}
.loader-bar {
  width: 200px; height: 1px; background: rgba(245,241,232,.1); margin: 16px auto 0;
  overflow: hidden; position: relative;
}
.loader-bar::after {
  content: ''; position: absolute; inset: 0;
  background: linear-gradient(90deg, transparent, var(--bd-green-2), transparent);
  animation: loader-sweep 1.4s ease-in-out infinite;
}
@keyframes drop-pulse { 0%,100%{transform:scale(1);opacity:1} 50%{transform:scale(1.08);opacity:.85} }
@keyframes loader-sweep { 0%{transform:translateX(-100%)} 100%{transform:translateX(100%)} }

/* ---------- Nav ---------- */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 500;
  display: flex; align-items: center; justify-content: space-between;
  padding: 22px 40px;
  transition: padding .4s var(--ease-out), background .4s, border-color .4s;
  border-bottom: 1px solid transparent;
}
.nav.scrolled {
  padding: 14px 40px;
  background: rgba(14,24,32,.78);
  backdrop-filter: blur(20px) saturate(1.2);
  -webkit-backdrop-filter: blur(20px) saturate(1.2);
  border-bottom-color: var(--bd-rule);
}
.nav-brand {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--ff-display); font-weight: 700;
  font-size: 22px; letter-spacing: -.01em;
}
.nav-brand img.nav-brand-lockup { width: auto; height: 36px; display: block; object-fit: contain; }
.nav-brand img { width: 32px; height: 32px; object-fit: contain; }
.nav-links { display: flex; gap: 4px; align-items: center; }
.nav-link {
  position: relative; padding: 10px 16px; font-size: 13px;
  letter-spacing: .02em; color: var(--bd-mute);
  transition: color .25s;
}
.nav-link:hover, .nav-link.active { color: var(--bd-bone); }
.nav-link.active::before {
  content: ''; position: absolute; left: 6px; top: 50%; width: 4px; height: 4px;
  border-radius: 50%; background: var(--bd-green-2);
  transform: translateY(-50%);
}
.nav-link.active { padding-left: 18px; }
.nav-cta {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 10px 18px; background: var(--bd-green); color: var(--bd-ink);
  border-radius: 999px; font-weight: 600; font-size: 13px;
  transition: background .25s, transform .25s;
}
.nav-cta:hover { background: var(--bd-green-2); transform: translateY(-1px); }
.nav-menu-btn { display: none; width: 40px; height: 40px; }
@media (max-width: 960px) {
  .nav { padding: 16px 20px; }
  .nav.scrolled { padding: 12px 20px; }
  .nav-links { display: none; }
  .nav-menu-btn { display: grid; place-items: center; }
  .nav-links.open {
    display: flex; position: fixed; top: 68px; left: 0; right: 0;
    flex-direction: column; align-items: stretch; gap: 0;
    background: var(--bd-ink); padding: 16px; border-bottom: 1px solid var(--bd-rule);
  }
  .nav-links.open .nav-link { padding: 14px 16px; font-size: 15px; border-bottom: 1px solid var(--bd-rule); }
  .nav-links.open .nav-cta { margin-top: 12px; justify-content: center; }
}

/* ---------- Utility: reveal on scroll ---------- */
.reveal { opacity: 0; transform: translateY(30px); transition: opacity .9s var(--ease-out), transform .9s var(--ease-out); }
.reveal.in { opacity: 1; transform: none; }
.reveal.d1 { transition-delay: .08s; }
.reveal.d2 { transition-delay: .16s; }
.reveal.d3 { transition-delay: .24s; }
.reveal.d4 { transition-delay: .32s; }
.reveal.d5 { transition-delay: .40s; }

/* ---------- Typography ---------- */
.eyebrow {
  display: inline-flex; align-items: center; gap: 10px;
  font-size: 11px; letter-spacing: .24em; text-transform: uppercase;
  color: var(--bd-green-2); font-weight: 500;
}
.eyebrow::before {
  content: ''; width: 24px; height: 1px; background: var(--bd-green-2);
}
h1, h2, h3, h4 {
  font-family: var(--ff-display); font-weight: 700;
  letter-spacing: -.02em; line-height: 1.02;
}
.display {
  font-family: var(--ff-display); font-weight: 700;
  font-size: clamp(48px, 8vw, 132px); line-height: .92;
  letter-spacing: -.035em;
}
.h1 { font-size: clamp(40px, 5.4vw, 84px); line-height: .96; }
.h2 { font-size: clamp(32px, 4vw, 60px); line-height: 1; }
.h3 { font-size: clamp(22px, 2vw, 30px); line-height: 1.1; }
.body-l { font-size: 18px; line-height: 1.55; color: rgba(245,241,232,.82); font-weight: 300; }
.body   { font-size: 15px; line-height: 1.6; color: rgba(245,241,232,.72); font-weight: 300; }
.mono   { font-family: var(--ff-mono); font-size: 11px; letter-spacing: .12em; text-transform: uppercase; color: var(--bd-mute); }

/* ---------- Section scaffold ---------- */
.section {
  position: relative; padding: 140px 40px;
  border-top: 1px solid var(--bd-rule);
}
.section-light {
  background: var(--bd-bone); color: var(--bd-ink);
}
.section-light .body-l, .section-light .body { color: rgba(14,24,32,.78); }
.section-light .mono, .section-light .eyebrow { color: var(--bd-green-3); }
.section-light .eyebrow::before { background: var(--bd-green-3); }
.section-light { border-top-color: var(--bd-rule-dark); }

.wrap { max-width: 1440px; margin: 0 auto; }
.wrap-narrow { max-width: 1080px; margin: 0 auto; }

@media (max-width: 760px) {
  .section { padding: 90px 20px; }
}

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; gap: 10px;
  padding: 16px 26px; font-size: 14px; font-weight: 600;
  border-radius: 999px;
  transition: all .3s var(--ease-out);
  position: relative; overflow: hidden;
}
.btn-primary { background: var(--bd-green); color: var(--bd-ink); }
.btn-primary:hover { background: var(--bd-green-2); transform: translateY(-2px);
  box-shadow: 0 16px 40px -12px rgba(109,197,83,.5); }
.btn-ghost { border: 1px solid var(--bd-rule); color: var(--bd-bone); }
.btn-ghost:hover { border-color: var(--bd-green-2); color: var(--bd-green-2); }
.section-light .btn-ghost { border-color: var(--bd-rule-dark); color: var(--bd-ink); }
.section-light .btn-ghost:hover { border-color: var(--bd-green-3); color: var(--bd-green-3); }
.btn-arrow { transition: transform .3s var(--ease-out); }
.btn:hover .btn-arrow { transform: translateX(4px); }

/* ---------- Footer ---------- */
.footer {
  background: var(--bd-ink); color: var(--bd-bone);
  padding: 100px 40px 40px; border-top: 1px solid var(--bd-rule);
}
.footer-grid {
  display: grid; grid-template-columns: 1.4fr 1fr 1fr 1fr; gap: 60px;
  max-width: 1440px; margin: 0 auto 80px;
}
@media (max-width: 820px) { .footer-grid { grid-template-columns: 1fr 1fr; gap: 40px; } .footer { padding: 70px 20px 30px; } }
.footer h4 { font-family: var(--ff-body); font-size: 12px; letter-spacing: .2em; text-transform: uppercase; color: var(--bd-green-2); margin-bottom: 20px; font-weight: 600; }
.footer ul { list-style: none; display: flex; flex-direction: column; gap: 10px; }
.footer a { color: var(--bd-mute); font-size: 14px; transition: color .25s; }
.footer a:hover { color: var(--bd-bone); }
.footer-bottom {
  max-width: 1440px; margin: 0 auto; padding-top: 30px;
  border-top: 1px solid var(--bd-rule);
  display: flex; justify-content: space-between; align-items: center; gap: 20px;
  font-size: 12px; color: var(--bd-mute); flex-wrap: wrap;
}

/* ---------- Placeholder block (for images the user will provide later) ---------- */
.placeholder {
  background:
    linear-gradient(135deg, rgba(109,197,83,.08), rgba(14,24,32,.4)),
    repeating-linear-gradient(45deg, rgba(245,241,232,.02) 0 10px, transparent 10px 20px);
  border: 1px dashed var(--bd-rule);
  display: grid; place-items: center; color: var(--bd-mute);
  font-size: 11px; letter-spacing: .16em; text-transform: uppercase;
  position: relative; overflow: hidden;
}
.placeholder::before {
  content: ''; position: absolute; inset: 0;
  background: radial-gradient(circle at 30% 30%, rgba(109,197,83,.18), transparent 60%);
  pointer-events: none;
}
.placeholder-label { position: relative; z-index: 1; display: flex; align-items: center; gap: 8px; }
.placeholder-label::before { content: '◢'; color: var(--bd-green-2); }
.section-light .placeholder { border-color: var(--bd-rule-dark); color: var(--bd-mute-dark);
  background: linear-gradient(135deg, rgba(109,197,83,.06), rgba(14,24,32,.04)),
  repeating-linear-gradient(45deg, rgba(14,24,32,.02) 0 10px, transparent 10px 20px); }

/* ---------- Tweaks panel ---------- */
.tweaks {
  position: fixed; bottom: 24px; right: 24px; z-index: 800;
  width: 280px; background: rgba(14,24,32,.92); backdrop-filter: blur(16px);
  border: 1px solid var(--bd-rule); border-radius: 16px;
  padding: 18px; color: var(--bd-bone);
  font-size: 12px;
  transform: translateY(20px); opacity: 0; pointer-events: none;
  transition: opacity .3s, transform .3s;
}
.tweaks.open { transform: none; opacity: 1; pointer-events: auto; }
.tweaks h5 { font-family: var(--ff-display); font-size: 14px; margin-bottom: 14px; letter-spacing: 0; }
.tweaks label { display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px; color: var(--bd-mute); font-size: 11px; }
.tweaks select, .tweaks input[type="color"] {
  background: var(--bd-ink-2); color: var(--bd-bone); border: 1px solid var(--bd-rule);
  border-radius: 6px; padding: 4px 8px; font-size: 11px; font-family: inherit;
}
.tweaks input[type="color"] { padding: 0; width: 40px; height: 22px; cursor: pointer; }
.tweak-chip { display: flex; gap: 6px; }
.tweak-chip button {
  flex: 1; padding: 6px; border: 1px solid var(--bd-rule); border-radius: 6px;
  font-size: 10px; letter-spacing: .1em; text-transform: uppercase; color: var(--bd-mute);
}
.tweak-chip button.on { background: var(--bd-green); color: var(--bd-ink); border-color: var(--bd-green); }