/* HERA NAIL — site styles */

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

:root {
  --bg: oklch(0.97 0.005 60);
  --bg-deep: oklch(0.94 0.006 60);
  --ink: oklch(0.18 0.005 60);
  --ink-soft: oklch(0.36 0.005 60);
  --mute: oklch(0.62 0.008 60);
  --rule: oklch(0.85 0.006 60);
  --accent: oklch(0.42 0.13 22);
  --accent-soft: oklch(0.55 0.13 22);

  --serif: 'Cormorant Garamond', 'Times New Roman', serif;
  --display: 'Italiana', 'Cormorant Garamond', serif;
  --sans: 'Manrope', 'Helvetica Neue', Arial, sans-serif;

  --pad: clamp(20px, 4vw, 56px);
  --max: 1480px;
}

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

html, body {
  background: var(--bg);
  color: var(--ink);
  font-family: var(--sans);
  font-weight: 400;
  font-size: 15px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

img { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; color: inherit; background: none; border: 0; cursor: pointer; }
input, select, textarea { font: inherit; color: inherit; background: transparent; border: 0; }

/* ──────────────── Header / Nav ──────────────── */

.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in oklch, var(--bg) 88%, transparent);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--rule);
  padding-top: env(safe-area-inset-top);
}
.site-header.is-dark {
  background: color-mix(in oklch, oklch(0.12 0 0) 70%, transparent);
  border-bottom-color: color-mix(in oklch, white 15%, transparent);
  color: var(--bg);
}

.nav {
  max-width: var(--max);
  margin: 0 auto;
  padding: 18px var(--pad);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 24px;
}
.brand {
  font-family: var(--display);
  font-size: 22px;
  letter-spacing: 0.32em;
  text-align: center;
  text-transform: uppercase;
}
.brand .sub {
  display: block;
  font-family: var(--sans);
  font-size: 9px;
  letter-spacing: 0.42em;
  margin-top: 2px;
  color: var(--mute);
  font-weight: 500;
}
.site-header.is-dark .brand .sub { color: color-mix(in oklch, white 60%, transparent); }

.nav-links {
  display: flex;
  gap: clamp(18px, 2.6vw, 36px);
  list-style: none;
  justify-content: flex-end;
  font-size: 10.5px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  font-weight: 500;
}
.nav-links a {
  position: relative;
  padding: 6px 0;
  transition: color .25s ease;
}
.nav-links a:hover { color: var(--accent); }
.nav-right { display: flex; align-items: center; gap: 16px; justify-content: flex-end; }
.nav-whatsapp { color: var(--accent); border: 1px solid var(--accent); padding: 7px 16px; border-radius: 2px; font-size: 10.5px; letter-spacing: 0.28em; text-transform: uppercase; font-weight: 500; white-space: nowrap; transition: background .2s, color .2s; }
.nav-whatsapp:hover { background: var(--accent); color: var(--bg); }
.site-header.is-dark .nav-whatsapp { color: #fff; border-color: rgba(255,255,255,0.5); }
.site-header.is-dark .nav-whatsapp:hover { background: #fff; color: var(--ink); }
.nav-links a.active::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -2px;
  height: 1px;
  background: currentColor;
}

.nav-left {
  display: flex;
  align-items: center;
  gap: 14px;
  font-size: 10.5px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--mute);
  font-weight: 500;
}
.nav-left .dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent); display: inline-block; }

/* mobile nav */
.nav-toggle { display: none; }
@media (max-width: 820px) {
  .nav { grid-template-columns: 1fr auto; gap: 12px; padding: 12px var(--pad); }
  .nav-left { display: none; }
  .nav-links {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--bg);
    padding: 24px var(--pad) 36px;
    gap: 18px;
    font-size: 13px;
    align-items: flex-start;
    border-bottom: 1px solid var(--rule);
    transform: translateY(-110%);
    visibility: hidden;
    transition: transform .35s cubic-bezier(.6,.05,.2,1), visibility 0s .35s;
  }
  .nav-links.open {
    transform: translateY(0);
    visibility: visible;
    transition: transform .35s cubic-bezier(.6,.05,.2,1), visibility 0s 0s;
  }
  .nav-toggle {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    font-size: 10.5px;
    letter-spacing: 0.28em;
    text-transform: uppercase;
    color: var(--ink);
  }
  .site-header.is-dark .nav-toggle { color: var(--bg); }
  .site-header.is-dark .nav-links { background: oklch(0.14 0 0); color: var(--bg); border-color: color-mix(in oklch, white 14%, transparent); }
}

/* ──────────────── Layout primitives ──────────────── */

.shell { max-width: var(--max); margin: 0 auto; padding: 0 var(--pad); }

.eyebrow {
  font-size: 10.5px;
  letter-spacing: 0.42em;
  text-transform: uppercase;
  color: var(--mute);
  font-weight: 500;
}

.h-display {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(60px, 11vw, 180px);
  line-height: 0.88;
  letter-spacing: -0.01em;
  text-transform: uppercase;
}

.h-title {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(40px, 6vw, 88px);
  line-height: 0.98;
  letter-spacing: 0.02em;
  text-transform: uppercase;
}

.h-section {
  font-family: var(--display);
  font-weight: 400;
  font-size: clamp(28px, 3.2vw, 44px);
  line-height: 1.05;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.italic-lead {
  font-family: var(--serif);
  font-style: italic;
  font-weight: 300;
  font-size: clamp(20px, 2vw, 28px);
  line-height: 1.4;
  color: var(--ink-soft);
}

.rule { height: 1px; background: var(--rule); width: 100%; }

/* Buttons / chips */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 28px;
  font-size: 11px;
  letter-spacing: 0.34em;
  text-transform: uppercase;
  font-weight: 500;
  border: 1px solid currentColor;
  transition: background .25s ease, color .25s ease, transform .25s ease;
}
.btn:hover { background: var(--ink); color: var(--bg); }
.btn.accent { background: var(--accent); color: var(--bg); border-color: var(--accent); }
.btn.accent:hover { background: var(--ink); border-color: var(--ink); }
.btn.ghost { background: transparent; }
.btn .arrow { transition: transform .3s; }
.btn:hover .arrow { transform: translateX(4px); }

/* Footer */

.site-footer {
  margin-top: 120px;
  padding: 80px var(--pad) 40px;
  border-top: 1px solid var(--rule);
  background: var(--bg);
}
.footer-grid {
  max-width: var(--max);
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1.4fr 1fr 1fr 1fr;
  gap: 48px;
  margin-bottom: 64px;
}
@media (max-width: 820px) {
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 32px; }
}
.footer-grid h4 {
  font-family: var(--sans);
  font-size: 10.5px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
  font-weight: 500;
  color: var(--mute);
  margin-bottom: 16px;
}
.footer-grid a { display: block; padding: 4px 0; font-size: 13px; }
.footer-grid a:hover { color: var(--accent); }
.footer-mark {
  font-family: var(--display);
  font-size: 28px;
  letter-spacing: 0.32em;
  text-transform: uppercase;
}
.footer-bottom {
  max-width: var(--max);
  margin: 0 auto;
  padding-top: 28px;
  border-top: 1px solid var(--rule);
  display: flex;
  justify-content: space-between;
  font-size: 10.5px;
  letter-spacing: 0.28em;
  text-transform: uppercase;
  color: var(--mute);
}
@media (max-width: 600px) { .footer-bottom { flex-direction: column; gap: 12px; } }

/* Page intro block */

.page-intro {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 48px;
  padding: clamp(60px, 9vw, 130px) 0 60px;
  border-bottom: 1px solid var(--rule);
}
@media (max-width: 820px) {
  .page-intro { grid-template-columns: 1fr; gap: 24px; padding: 60px 0 40px; }
}
.page-intro .meta {
  display: flex;
  flex-direction: column;
  gap: 16px;
  align-self: end;
}
.page-intro .meta .num {
  font-family: var(--display);
  font-size: 14px;
  letter-spacing: 0.28em;
  color: var(--mute);
}

/* Reveal on scroll */
.reveal { opacity: 0; transform: translateY(18px); transition: opacity 1s ease, transform 1s cubic-bezier(.2,.7,.2,1); }
.reveal.in { opacity: 1; transform: none; }