/* ============================================
   MANOS VERDES WOODWORK — sistema base
   ============================================ */

:root {
  --bone: #F5F2EC;
  --bone-2: #EDE8DE;
  --ink: #1A1815;
  --ink-soft: #2A2520;
  --wood: #C8A77A;
  --wood-dark: #8A6A47;
  --green: #3D4A3C;
  --green-deep: #2B362A;
  --line: rgba(26, 24, 21, 0.14);
  --line-strong: rgba(26, 24, 21, 0.32);
  --muted: rgba(26, 24, 21, 0.55);

  --serif: 'Instrument Serif', 'Times New Roman', serif;
  --sans: 'Inter Tight', system-ui, -apple-system, sans-serif;
  --mono: 'JetBrains Mono', ui-monospace, monospace;

  --max: 1440px;
  --gutter: clamp(20px, 4vw, 64px);
}

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

html { scroll-behavior: smooth; }

body {
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.5;
  color: var(--ink);
  background: var(--bone);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

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

/* ===== Tipografía ===== */
.serif { font-family: var(--serif); font-weight: 400; letter-spacing: -0.01em; }
.mono { font-family: var(--mono); font-size: 11px; letter-spacing: 0.08em; text-transform: uppercase; }
.eyebrow {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink);
  font-weight: 500;
}

h1, h2, h3, h4 { font-family: var(--serif); font-weight: 400; line-height: 0.95; letter-spacing: -0.02em; }

.display-xl { font-size: clamp(72px, 13vw, 220px); line-height: 0.88; letter-spacing: -0.04em; }
.display-l  { font-size: clamp(56px, 9vw, 156px);  line-height: 0.9;  letter-spacing: -0.03em; }
.display-m  { font-size: clamp(40px, 6vw, 96px);   line-height: 0.95; letter-spacing: -0.025em; }
.display-s  { font-size: clamp(28px, 3.4vw, 52px); line-height: 1.0;  letter-spacing: -0.02em; }

/* ===== Layout helpers ===== */
.shell { max-width: var(--max); margin: 0 auto; padding: 0 var(--gutter); }
.full  { padding: 0 var(--gutter); }

.section { padding: clamp(80px, 12vh, 160px) 0; position: relative; }
.section-num {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.16em;
  color: var(--muted);
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 24px;
}
.section-num::before {
  content: "";
  width: 24px;
  height: 1px;
  background: var(--ink);
}

/* ===== Botones ===== */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 22px;
  font-family: var(--sans);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border: 1px solid currentColor;
  transition: all 0.4s cubic-bezier(0.2, 0.7, 0.2, 1);
  position: relative;
  overflow: hidden;
}
.btn-solid {
  background: var(--ink);
  color: var(--bone);
  border-color: var(--ink);
}
.btn-solid:hover { background: var(--green-deep); border-color: var(--green-deep); }
.btn-ghost:hover { background: var(--ink); color: var(--bone); }
.btn .arrow {
  display: inline-block;
  transition: transform 0.4s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.btn:hover .arrow { transform: translateX(4px); }

/* ===== Top nav ===== */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  padding: 22px var(--gutter);
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: transparent;
  transition: background 0.4s ease, backdrop-filter 0.4s ease, border 0.4s ease, color 0.4s ease;
  border-bottom: 1px solid transparent;
  mix-blend-mode: difference;
  color: #f5f2ec;
}
.nav.scrolled {
  mix-blend-mode: normal;
  background: rgba(245, 242, 236, 0.88);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid var(--line);
  color: var(--ink);
}
.nav-logo {
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: -0.01em;
  display: flex;
  align-items: center;
  gap: 10px;
}
.nav-logo .mark {
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--green);
  display: inline-block;
}
.nav-links {
  display: flex;
  gap: 36px;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}
.nav-links a { position: relative; padding: 6px 0; }
.nav-links a::after {
  content: "";
  position: absolute; left: 0; right: 0; bottom: 0;
  height: 1px;
  background: currentColor;
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.4s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.nav-links a:hover::after { transform: scaleX(1); }
.nav-cta {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  padding: 10px 16px;
  border: 1px solid currentColor;
}
@media (max-width: 820px) {
  .nav-links { display: none; }
}

/* ===== Marquee ===== */
.marquee {
  overflow: hidden;
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
  padding: 24px 0;
}
.marquee-track {
  display: flex;
  gap: 60px;
  white-space: nowrap;
  animation: marquee 40s linear infinite;
  font-family: var(--serif);
  font-size: clamp(36px, 5vw, 72px);
  font-style: italic;
}
.marquee-track span { display: inline-flex; align-items: center; gap: 60px; }
.marquee-track .dot {
  width: 8px; height: 8px;
  background: var(--green);
  border-radius: 50%;
  display: inline-block;
}
@keyframes marquee {
  from { transform: translateX(0); }
  to   { transform: translateX(-50%); }
}

/* ===== Reveal on scroll ===== */
.reveal {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.9s cubic-bezier(0.2, 0.7, 0.2, 1), transform 0.9s cubic-bezier(0.2, 0.7, 0.2, 1);
}
.reveal.in {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Footer ===== */
.footer {
  background: var(--ink);
  color: var(--bone);
  padding: 80px var(--gutter) 32px;
}
.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 48px;
  padding-bottom: 60px;
  border-bottom: 1px solid rgba(245, 242, 236, 0.18);
}
.footer h4 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 16px;
  font-weight: 500;
  color: rgba(245, 242, 236, 0.55);
}
.footer ul { list-style: none; display: flex; flex-direction: column; gap: 8px; font-size: 14px; }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-top: 24px;
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(245, 242, 236, 0.55);
}
@media (max-width: 720px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ===== Selection ===== */
::selection { background: var(--green); color: var(--bone); }

/* ===== Scrollbar (subtle) ===== */
::-webkit-scrollbar { width: 8px; height: 8px; }
::-webkit-scrollbar-track { background: var(--bone-2); }
::-webkit-scrollbar-thumb { background: var(--line-strong); }