/* Fuentes — Instrument Sans */
@font-face {
  font-family: "Instrument Sans";
  src: url("/assets/fonts/InstrumentSans-Regular.woff2") format("woff2");
  font-weight: 400;
  font-display: swap;
}
@font-face {
  font-family: "Instrument Sans";
  src: url("/assets/fonts/InstrumentSans-Medium.woff2") format("woff2");
  font-weight: 500;
  font-display: swap;
}
@font-face {
  font-family: "Instrument Sans";
  src: url("/assets/fonts/InstrumentSans-SemiBold.woff2") format("woff2");
  font-weight: 600;
  font-display: swap;
}

/* Tokens de color y tipografía — RAKta */
:root {
  --bg: #F4F5F2;
  --fg: #101417;
  --muted: #566064;
  --accent: #1F5F6B;
  --line: #D9DDDA;
  --font: "Instrument Sans", system-ui, -apple-system, "Segoe UI", sans-serif;
  color-scheme: light;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #0E1215;
    --fg: #ECEFED;
    --muted: #93A0A4;
    --accent: #7FB8C4;
    --line: #222B2F;
    color-scheme: dark;
  }
}

/* Reset básico */
* { box-sizing: border-box; }

html, body { height: 100%; margin: 0; }

/* Estructura general */
body {
  background: var(--bg);
  color: var(--fg);
  font-family: var(--font);
  line-height: 1.5;
  display: flex;
  flex-direction: column;
  padding-inline: clamp(16px, 4vw, 40px);
}

/* Header */
header {
  padding-block: 24px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

header img {
  display: block;
  width: 140px;
  height: auto;
  flex-shrink: 0;
}

/* Selector de idioma */
.lang-selector {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  font-weight: 500;
}

.lang-selector a {
  color: var(--fg);
  text-decoration: none;
  padding: 4px 0;
  border-bottom: 1px solid transparent;
  transition: border-color 0.2s, opacity 0.2s;
}

.lang-selector a:hover {
  border-color: var(--accent);
  opacity: 0.7;
}

.lang-selector a[aria-current="page"] {
  color: var(--accent);
  border-color: var(--accent);
  cursor: default;
}

.lang-selector span {
  color: var(--muted);
}

/* Contenido principal */
main {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 64px;
  padding-block: 48px;
}

/* Hero */
.hero { display: flex; flex-direction: column; gap: 24px; }
.hero h1 {
  margin: 0;
  font-weight: 400;
  font-size: clamp(38px, 8.2vw, 92px);
  line-height: 1.02;
  letter-spacing: -0.03em;
  max-width: 14ch;
  text-wrap: balance;
  animation: rise 0.7s cubic-bezier(0.23, 1, 0.32, 1) both;
}
.hero h1 em { font-style: normal; color: var(--accent); white-space: nowrap; }
.hero p {
  margin: 0;
  color: var(--muted);
  font-size: clamp(16px, 2vw, 19px);
  max-width: 46ch;
}

/* Sección "What we do" */
.what-we-do section { display: grid; gap: 16px; }
.what-we-do h2 {
  margin: 0;
  font-weight: 500;
  font-size: clamp(24px, 4.8vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.what-we-do p { color: var(--muted); }
.what-we-do ul {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 16px;
}
.what-we-do li {
  display: grid;
  gap: 8px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 8px;
}
.what-we-do li h3 {
  margin: 0;
  font-weight: 500;
  font-size: clamp(18px, 3.2vw, 24px);
}
.what-we-do li p { margin: 0; color: var(--muted); }

/* Sección "Approach" */
.approach { display: grid; gap: 16px; }
.approach h2 {
  margin: 0;
  font-weight: 500;
  font-size: clamp(24px, 4.8vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.approach p { color: var(--muted); max-width: 46ch; }
.approach .principles {
  display: grid;
  gap: 16px;
}
.approach .principle {
  margin: 0;
  color: var(--muted);
  font-size: clamp(16px, 2vw, 19px);
}
.approach .principle strong {
  color: var(--accent);
  font-weight: 500;
}

/* Sección "Contact" */
.contact { display: flex; flex-direction: column; gap: 16px; }
.contact h2 {
  margin: 0;
  font-weight: 500;
  font-size: clamp(24px, 4.8vw, 48px);
  line-height: 1.1;
  letter-spacing: -0.02em;
}
.contact p { margin: 0; color: var(--muted); }
.contact a {
  color: var(--accent);
  text-decoration: none;
  font-weight: 500;
  font-size: clamp(16px, 2vw, 19px);
  border-bottom: 1px solid var(--accent);
  display: inline-block;
  padding-bottom: 2px;
}

/* Footer */
footer {
  padding-block: 18px;
  border-top: 1px solid var(--line);
  font-size: 12px;
  color: var(--muted);
}

/* Animación de entrada */
@keyframes rise { from { transform: translateY(10px); } to { transform: none; } }

/* Reducción de movimiento */
@media (prefers-reduced-motion: reduce) {
  .hero h1 { animation: none; }
}

/* Responsive */
@media (max-width: 360px) {
  body { padding-inline: 16px; }
  header img { width: 120px; }
  .hero h1 { font-size: clamp(30px, 10vw, 38px); }
}