/* ============================================================
   PX Advocacia — Boutique técnica
   ============================================================ */

:root {
  /* Dark (default) */
  --bg:        #0a0a0a;
  --bg-elev:   #111111;
  --bg-soft:   #161616;
  --fg:        #e8e6df;
  --fg-dim:    #9a978f;
  --fg-mute:   #5a5853;
  --line:      #1f1f1d;
  --line-soft: #161614;
  --accent:    oklch(80% 0.16 152);
  --accent-dim: oklch(60% 0.10 152);
  --warn:      oklch(75% 0.14 60);
}

[data-palette="light"] {
  --bg:        #f4f1ec;
  --bg-elev:   #ece8e1;
  --bg-soft:   #e4dfd6;
  --fg:        #15140f;
  --fg-dim:    #5a5853;
  --fg-mute:   #8a877f;
  --line:      #d6d1c6;
  --line-soft: #e1ddd2;
  --accent:    oklch(48% 0.14 152);
  --accent-dim: oklch(60% 0.10 152);
}

[data-palette="contrast"] {
  --bg:        #050505;
  --bg-elev:   #0a0a0a;
  --bg-soft:   #0f0f0f;
  --fg:        #ffffff;
  --fg-dim:    #b8b8b8;
  --fg-mute:   #6a6a6a;
  --line:      #2a2a2a;
  --line-soft: #1a1a1a;
  --accent:    oklch(85% 0.20 145);
  --accent-dim: oklch(65% 0.14 145);
}

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

html, body {
  background: var(--bg);
  color: var(--fg);
  font-family: 'Geist', 'Söhne', system-ui, sans-serif;
  font-feature-settings: "ss01", "ss02", "cv11";
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  font-size: 16px;
  line-height: 1.45;
  transition: background 0.4s ease, color 0.4s ease;
}

::selection { background: var(--accent); color: var(--bg); }

a { color: inherit; text-decoration: none; }

.serif {
  font-family: 'Instrument Serif', 'Times New Roman', serif;
  font-weight: 400;
  letter-spacing: -0.01em;
}

.mono {
  font-family: 'JetBrains Mono', 'SF Mono', ui-monospace, monospace;
  font-feature-settings: "ss02", "zero", "cv11";
}

/* ---------- Layout primitives ---------- */
.container {
  width: 100%;
  max-width: 1440px;
  margin: 0 auto;
  padding: 0 48px;
}
@media (max-width: 720px) {
  .container { padding: 0 20px; }
}

.section {
  padding: 96px 0;
  border-top: 1px solid var(--line);
  position: relative;
}

.section-head {
  display: grid;
  grid-template-columns: 1fr 2fr;
  gap: 64px;
  margin-bottom: 64px;
  align-items: baseline;
}
@media (max-width: 880px) {
  .section-head { grid-template-columns: 1fr; gap: 24px; margin-bottom: 40px; }
}

.section-label {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--fg-mute);
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-label::before {
  content: "";
  width: 6px;
  height: 6px;
  background: var(--accent);
  border-radius: 50%;
  box-shadow: 0 0 0 4px color-mix(in srgb, var(--accent) 15%, transparent);
}
.section-num {
  color: var(--fg-mute);
  margin-right: 4px;
}

.section-title {
  font-family: 'Instrument Serif', serif;
  font-size: clamp(36px, 4.5vw, 64px);
  line-height: 1.02;
  letter-spacing: -0.02em;
  font-weight: 400;
  color: var(--fg);
  text-wrap: balance;
}
.section-title em {
  font-style: italic;
  color: var(--accent);
}

/* ---------- Navbar ---------- */
.nav {
  position: sticky;
  top: 0;
  z-index: 50;
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--line-soft);
}
.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.nav-brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 13px;
  letter-spacing: 0.02em;
}
.nav-brand-mark {
  width: 22px;
  height: 22px;
  border: 1px solid var(--fg);
  display: grid;
  place-items: center;
  font-size: 10px;
  letter-spacing: 0;
  position: relative;
}
.nav-brand-mark::after {
  content: "";
  position: absolute;
  inset: -3px;
  border: 1px solid var(--line);
}
.nav-links {
  display: flex;
  gap: 36px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.04em;
}
.nav-links a {
  color: var(--fg-dim);
  transition: color 0.2s;
  position: relative;
}
.nav-links a:hover { color: var(--fg); }
.nav-links a::before {
  content: attr(data-n);
  color: var(--fg-mute);
  margin-right: 6px;
  font-size: 10px;
}
.nav-cta {
  display: flex;
  align-items: center;
  gap: 18px;
}
.lang-toggle {
  font-family: 'JetBrains Mono', monospace;
  font-size: 11px;
  letter-spacing: 0.08em;
  color: var(--fg-mute);
  background: transparent;
  border: 1px solid var(--line);
  padding: 6px 10px;
  cursor: pointer;
  display: flex;
  gap: 8px;
  align-items: center;
}
.lang-toggle .active { color: var(--accent); }
.lang-toggle:hover { border-color: var(--fg-dim); }

@media (max-width: 880px) {
  .nav-links { display: none; }
}

/* ---------- Buttons ---------- */
.btn {
  font-family: 'JetBrains Mono', monospace;
  font-size: 12px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 12px 20px;
  border: 1px solid var(--fg);
  background: var(--fg);
  color: var(--bg);
  cursor: pointer;
  transition: all 0.2s;
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.btn:hover {
  background: var(--accent);
  border-color: var(--accent);
  color: var(--bg);
}
.btn-ghost {
  background: transparent;
  color: var(--fg);
}
.btn-ghost:hover {
  background: var(--fg);
  color: var(--bg);
}
.btn-arrow { font-size: 14px; line-height: 1; }