@import url('https://fonts.googleapis.com/css2?family=DM+Serif+Display:ital@0;1&family=DM+Sans:ital,opsz,wght@0,9..40,300;0,9..40,400;0,9..40,500;0,9..40,600;1,9..40,300&display=swap');

/* ══════════════════════════════════
   BYTLIFY — NEUTRAL MINIMAL SYSTEM
══════════════════════════════════ */
:root {
  --cream:   #FAF9F7;
  --cream2:  #F2F0EC;
  --cream3:  #E8E5DF;
  --ink:     #1A1A18;
  --ink2:    #4A4A46;
  --ink3:    #8A8A84;
  --ink4:    #C4C4BC;
  --sage:    #5C6B5E;
  --sage2:   #7A8C7C;
  --border:  rgba(26,26,24,0.1);
  --border2: rgba(26,26,24,0.06);
  --nav-h:   68px;
  --radius:  6px;
}
[data-theme="dark"] {
  --cream:   #141412;
  --cream2:  #1C1C1A;
  --cream3:  #242420;
  --ink:     #F0EFE9;
  --ink2:    #B0AFA8;
  --ink3:    #6A6A62;
  --ink4:    #3A3A36;
  --border:  rgba(240,239,233,0.1);
  --border2: rgba(240,239,233,0.05);
}

/* ── RESET ── */
*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior:smooth; }
body {
  font-family: 'DM Sans', system-ui, sans-serif;
  background: var(--cream);
  color: var(--ink);
  overflow-x: hidden;
  transition: background .4s, color .4s;
  -webkit-font-smoothing: antialiased;
}
a { color:inherit; text-decoration:none; }
::selection { background:var(--ink); color:var(--cream); }
::-webkit-scrollbar { width:3px; }
::-webkit-scrollbar-thumb { background:var(--ink3); border-radius:2px; }

/* ── TYPOGRAPHY ── */
.serif {
  font-family: 'DM Serif Display', Georgia, serif;
  font-weight: 400;
  line-height: 1.08;
  letter-spacing: -0.5px;
}
.serif-italic {
  font-family: 'DM Serif Display', Georgia, serif;
  font-style: italic;
  font-weight: 400;
}
.t-display { font-size: clamp(2.8rem, 6vw, 5.5rem); }
.t-h2      { font-size: clamp(2rem, 4vw, 3.2rem); }
.t-h3      { font-size: clamp(1.4rem, 2.5vw, 2rem); }
.t-label {
  font-size: .72rem;
  font-weight: 500;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--ink3);
}
.t-body { font-size: 1rem; line-height: 1.75; color: var(--ink2); }
.t-small { font-size: .875rem; line-height: 1.7; color: var(--ink2); }

/* ── NAV ── */
.nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  height: var(--nav-h);
  display: flex; align-items: center;
  padding: 0 clamp(1.5rem, 5%, 4.5rem);
  background: rgba(250,249,247,0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition: background .4s, border-color .4s;
}
[data-theme="dark"] .nav {
  background: rgba(20,20,18,0.85);
}
.nav-logo {
  font-family: 'DM Serif Display', serif;
  font-size: 1.35rem;
  letter-spacing: -0.5px;
  color: var(--ink);
  flex-shrink: 0;
}
.nav-logo span { color: var(--ink3); }

/* Animated nav links */
.nav-links {
  display: flex; gap: 2rem;
  list-style: none;
  margin: 0 auto;
}
.nav-links a {
  font-size: .875rem;
  font-weight: 400;
  color: var(--ink2);
  position: relative;
  padding-bottom: 2px;
  transition: color .25s;
}
.nav-links a::after {
  content: '';
  position: absolute; left: 0; bottom: -2px;
  width: 0; height: 1px;
  background: var(--ink);
  transition: width .3s cubic-bezier(.4,0,.2,1);
}
.nav-links a:hover { color: var(--ink); }
.nav-links a:hover::after { width: 100%; }
.nav-links a.active { color: var(--ink); }
.nav-links a.active::after { width: 100%; }

.nav-right { display: flex; align-items: center; gap: 1rem; flex-shrink: 0; }
.nav-theme {
  width: 34px; height: 34px;
  background: none; border: 1px solid var(--border);
  border-radius: 50%; cursor: pointer;
  display: flex; align-items: center; justify-content: center;
  font-size: .8rem; transition: border-color .25s, transform .25s;
  color: var(--ink2);
}
.nav-theme:hover { border-color: var(--ink3); transform: rotate(20deg); }
.nav-cta {
  font-size: .82rem; font-weight: 500;
  padding: .5rem 1.25rem;
  background: var(--ink);
  color: var(--cream);
  border-radius: 100px;
  transition: opacity .2s, transform .2s;
}
.nav-cta:hover { opacity: .8; transform: translateY(-1px); }
.nav-ham {
  display: none; flex-direction: column; gap: 5px;
  cursor: pointer; padding: 4px; background: none; border: none;
}
.nav-ham span {
  display: block; width: 20px; height: 1.5px;
  background: var(--ink); border-radius: 1px;
  transition: all .3s;
}

/* Mobile drawer */
.drawer {
  position: fixed; top: var(--nav-h); left: 0; right: 0; bottom: 0;
  background: var(--cream); z-index: 99;
  padding: 2.5rem clamp(1.5rem,5%,4.5rem);
  display: none; flex-direction: column;
  border-top: 1px solid var(--border);
}
.drawer.open { display: flex; }
.drawer a {
  font-family: 'DM Serif Display', serif;
  font-size: 2rem; color: var(--ink2);
  padding: 1rem 0;
  border-bottom: 1px solid var(--border);
  transition: color .2s;
}
.drawer a:hover { color: var(--ink); }

/* ── LAYOUT ── */
.container {
  width: 100%; max-width: 1200px;
  margin: 0 auto;
  padding: 0 clamp(1.5rem, 5%, 4.5rem);
}
.section { padding: clamp(5rem,10vw,8rem) 0; }

/* ── DIVIDERS ── */
.divider { height: 1px; background: var(--border); }

/* ── BUTTONS ── */
.btn {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: 'DM Sans', sans-serif;
  font-size: .875rem; font-weight: 500;
  border-radius: 100px;
  border: none; cursor: pointer;
  transition: all .25s;
  text-decoration: none;
}
.btn-dark {
  background: var(--ink); color: var(--cream);
  padding: .7rem 1.75rem;
}
.btn-dark:hover { opacity: .8; transform: translateY(-1px); }
.btn-ghost {
  background: transparent;
  border: 1px solid var(--border);
  color: var(--ink2);
  padding: .65rem 1.5rem;
}
.btn-ghost:hover { border-color: var(--ink3); color: var(--ink); }
.btn-text {
  background: none; color: var(--ink2); padding: 0;
  font-size: .875rem;
}
.btn-text::after { content: ' →'; }
.btn-text:hover { color: var(--ink); }

/* ── LABEL CHIP ── */
.chip {
  display: inline-block;
  font-size: .68rem; font-weight: 500;
  letter-spacing: .8px; text-transform: uppercase;
  padding: .3rem .8rem;
  border: 1px solid var(--border);
  border-radius: 100px;
  color: var(--ink3);
  background: transparent;
}

/* ── CARDS ── */
.card {
  background: var(--cream2);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 2rem;
  transition: border-color .25s, transform .3s;
}
.card:hover { border-color: var(--ink4); transform: translateY(-2px); }

/* ── SCROLL REVEAL ── */
.sr {
  opacity: 0; transform: translateY(20px);
  transition: opacity .65s ease, transform .65s ease;
}
.sr.up { opacity: 1; transform: translateY(0); }

/* ── FOOTER ── */
footer {
  background: var(--cream2);
  border-top: 1px solid var(--border);
  padding: 4rem 0 2.5rem;
}
.footer-grid {
  display: grid; grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: 3rem; padding-bottom: 3rem;
  border-bottom: 1px solid var(--border);
  margin-bottom: 2rem;
}
.footer-logo {
  font-family: 'DM Serif Display', serif;
  font-size: 1.2rem; margin-bottom: .75rem;
}
.footer-logo span { color: var(--ink3); }
.footer-col h5 {
  font-size: .72rem; font-weight: 500;
  letter-spacing: 1.2px; text-transform: uppercase;
  color: var(--ink3); margin-bottom: 1.25rem;
}
.footer-col ul { list-style: none; display: flex; flex-direction: column; gap: .65rem; }
.footer-col a { font-size: .875rem; color: var(--ink2); transition: color .2s; }
.footer-col a:hover { color: var(--ink); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  flex-wrap: wrap; gap: 1rem;
}
.footer-bottom p { font-size: .78rem; color: var(--ink3); }

/* ── RESPONSIVE ── */
@media (max-width: 860px) {
  .nav-links { display: none; }
  .nav-ham { display: flex; }
  .footer-grid { grid-template-columns: 1fr 1fr; gap: 2rem; }
}
@media (max-width: 540px) {
  .footer-grid { grid-template-columns: 1fr; }
}