/* ==========================================================================
   FIIC — Componentes compartidos
   ========================================================================== */

/* ---------- Layout ---------- */
.shell {
  width: 100%;
  max-width: var(--max-w);
  margin: 0 auto;
  padding-inline: var(--gutter);
}

.section {
  padding-block: var(--section-y);
  position: relative;
}
.section--deep { background: var(--bg-deep); color: var(--paper-50); }
.section--alt  { background: var(--bg-alt); }
.section--paper { background: var(--paper-100); }

.section-head {
  display: grid;
  grid-template-columns: 1fr;
  gap: 24px;
  padding-bottom: 64px;
  border-bottom: 1px solid var(--rule);
  margin-bottom: 64px;
}
@media (min-width: 880px) {
  .section-head { grid-template-columns: 1fr 2fr; gap: 80px; }
}
.section-head__num {
  font-family: var(--mono);
  font-size: var(--t-xs);
  letter-spacing: 0.18em;
  color: var(--filete);
  text-transform: uppercase;
  display: flex;
  align-items: flex-start;
  gap: 12px;
}
.section-head__num::before {
  content: "";
  display: inline-block;
  width: 28px;
  height: 1px;
  background: var(--filete);
  margin-top: 9px;
}
.section--deep .section-head { border-bottom-color: rgba(255,255,255,0.16); }
.section--deep .section-head__num { color: var(--filete-soft); }
.section--deep .section-head__num::before { background: var(--filete-soft); }

.section-title {
  font-family: var(--serif);
  font-size: var(--t-2xl);
  line-height: 1.02;
  letter-spacing: -0.02em;
  font-weight: 400;
  color: inherit;
}
.section-title em {
  font-style: italic;
  color: var(--fiic-600);
}
.section--deep .section-title em { color: var(--filete-soft); }

/* ---------- Nav ---------- */
.nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 9999;
  padding: 18px var(--gutter);
  background: rgba(251, 250, 246, 0.84);
  backdrop-filter: saturate(140%) blur(14px);
  -webkit-backdrop-filter: saturate(140%) blur(14px);
  border-bottom: 1px solid var(--rule-light);
  transition: background var(--dur-1) var(--ease), border-color var(--dur-1) var(--ease);
}
.nav.is-deep {
  background: rgba(10, 26, 58, 0.7);
  border-bottom-color: rgba(255,255,255,0.08);
  color: var(--paper-50);
}
.nav__inner {
  max-width: var(--max-w);
  margin: 0 auto;
  display: grid;
  grid-template-columns: auto 1fr auto;
  align-items: center;
  gap: 32px;
}
.nav__brand {
  display: flex; align-items: center; gap: 12px;
  font-family: var(--serif);
  font-size: 22px;
  letter-spacing: -0.01em;
}
.nav__brand-mark {
  width: 36px; height: 36px;
  border-radius: 50%;
  background: var(--fiic-600);
  display: grid; place-items: center;
  color: var(--paper-50);
  font-family: var(--mono);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  flex: none;
}
.nav__brand-logo {
  width: 44px; height: 44px;
  flex: none;
  object-fit: contain;
  transition: filter var(--dur-1) var(--ease);
}
.nav.is-deep .nav__brand-logo { filter: none; opacity: 1; background: var(--paper-50); border-radius: 50%; padding: 2px; }
.nav__brand-text { display: flex; flex-direction: column; line-height: 1; gap: 2px; }
.nav__brand-text small {
  font-family: var(--sans);
  font-size: 9px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-mute);
  font-weight: 500;
}
.nav.is-deep .nav__brand-text small { color: rgba(255,255,255,0.6); }

.nav__menu {
  display: none;
  justify-content: center;
  gap: 6px;
  font-size: 13.5px;
  letter-spacing: 0.01em;
}
@media (min-width: 980px) { .nav__menu { display: flex; } }
.nav__link {
  padding: 8px 14px;
  border-radius: 999px;
  position: relative;
  color: inherit;
  opacity: 0.78;
  transition: opacity var(--dur-1) var(--ease), background var(--dur-1) var(--ease);
}
.nav__link:hover { opacity: 1; background: rgba(14, 15, 18, 0.04); }
.nav.is-deep .nav__link:hover { background: rgba(255,255,255,0.08); }
.nav__link.is-active {
  opacity: 1;
  background: var(--fiic-600);
  color: var(--paper-50);
}

.nav__cta {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 10px 18px;
  border-radius: 999px;
  background: var(--fiic-600);
  color: var(--paper-50);
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: background var(--dur-1) var(--ease), transform var(--dur-1) var(--ease);
}
.nav__cta:hover { background: var(--fiic-800); transform: translateY(-1px); }
.nav__cta svg { width: 14px; height: 14px; }
.nav__cta--ghost { background: transparent; color: inherit; border: 1px solid currentColor; opacity: 0.85; }
.nav__cta--ghost:hover { background: rgba(14,15,18,0.06); transform: translateY(-1px); }
.nav.is-deep .nav__cta--ghost:hover { background: rgba(255,255,255,0.1); }

/* ---------- Botones ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  padding: 16px 28px;
  border-radius: 999px;
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  transition: all var(--dur-1) var(--ease);
  white-space: nowrap;
}
.btn--primary {
  background: var(--fiic-600);
  color: var(--paper-50);
}
.btn--primary:hover { background: var(--fiic-800); transform: translateY(-1px); }
.btn--ghost {
  background: transparent;
  color: inherit;
  border: 1px solid var(--rule-strong);
}
.btn--ghost:hover { border-color: var(--fiic-600); color: var(--fiic-600); }
.section--deep .btn--ghost { border-color: rgba(255,255,255,0.32); }
.section--deep .btn--ghost:hover { border-color: var(--filete); color: var(--filete); }
.btn--ivory {
  background: var(--paper-50);
  color: var(--fiic-900);
}
.btn--ivory:hover { background: var(--filete-soft); }

.arrow { width: 16px; height: 16px; flex: none; transition: transform var(--dur-1) var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }

/* ---------- Footer ---------- */
.footer {
  background: var(--fiic-950);
  color: var(--paper-100);
  padding: 96px var(--gutter) 32px;
  font-size: var(--t-sm);
}
.footer__inner { max-width: var(--max-w); margin: 0 auto; }
.footer__top {
  display: grid;
  grid-template-columns: 1fr;
  gap: 56px;
  padding-bottom: 64px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
  margin-bottom: 32px;
}
@media (min-width: 880px) {
  .footer__top { grid-template-columns: 2fr 1fr 1fr 1fr; gap: 64px; }
}
.footer__motto {
  font-family: var(--serif);
  font-size: var(--t-xl);
  line-height: 1.1;
  letter-spacing: -0.01em;
  font-style: italic;
  color: var(--paper-50);
  max-width: 480px;
}
.footer__col h4 {
  font-size: 11px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--filete-soft);
  margin-bottom: 18px;
  font-weight: 500;
}
.footer__col ul { display: grid; gap: 10px; }
.footer__col a { opacity: 0.7; transition: opacity var(--dur-1) var(--ease); }
.footer__col a:hover { opacity: 1; }

.footer__bottom {
  display: flex;
  flex-wrap: wrap;
  gap: 24px;
  justify-content: space-between;
  align-items: center;
  font-size: 12px;
  color: rgba(255,255,255,0.5);
  font-family: var(--mono);
  letter-spacing: 0.04em;
}

/* ---------- Sello / Monograma ---------- */
.seal {
  width: 120px;
  height: 120px;
  position: relative;
  display: inline-block;
}
.seal svg { width: 100%; height: 100%; }

/* ---------- Hilo (animación de subrayado serif) ---------- */
.thread {
  display: inline-block;
  position: relative;
  white-space: nowrap;
}
.thread::after {
  content: "";
  position: absolute;
  left: 0; right: 0; bottom: -0.08em;
  height: 1px;
  background: currentColor;
  opacity: 0.3;
}

/* ---------- Page header (para páginas internas) ---------- */
.page-hero {
  background: var(--bg-deep);
  color: var(--paper-50);
  padding: 200px var(--gutter) 96px;
  border-bottom: 1px solid rgba(255,255,255,0.1);
}
.page-hero__inner { max-width: var(--max-w); margin: 0 auto; }
.page-hero__num {
  font-family: var(--mono);
  font-size: var(--t-xs);
  letter-spacing: 0.22em;
  color: var(--filete-soft);
  text-transform: uppercase;
  margin-bottom: 32px;
  display: flex; align-items: center; gap: 14px;
}
.page-hero__num::before {
  content: ""; width: 32px; height: 1px; background: var(--filete-soft);
}
.page-hero__title {
  font-family: var(--serif);
  font-size: var(--t-3xl);
  line-height: 0.96;
  letter-spacing: -0.02em;
  font-weight: 400;
  max-width: 1100px;
}
.page-hero__title em {
  font-style: italic;
  color: var(--filete-soft);
}
.page-hero__lede {
  margin-top: 36px;
  max-width: 640px;
  font-size: var(--t-md);
  line-height: 1.6;
  color: rgba(255,255,255,0.78);
}

/* ---------- Card de papel (para uso en listas elegantes) ---------- */
.paper-card {
  background: var(--paper-50);
  border: 1px solid var(--rule);
  padding: 36px;
  transition: border-color var(--dur-2) var(--ease), transform var(--dur-2) var(--ease), box-shadow var(--dur-2) var(--ease);
}
.paper-card:hover {
  border-color: var(--fiic-600);
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

/* ---------- Tabla data (para portafolio) ---------- */
.data-row {
  display: grid;
  grid-template-columns: 1fr;
  gap: 8px;
  padding: 28px 0;
  border-bottom: 1px solid var(--rule);
  align-items: baseline;
  transition: padding var(--dur-1) var(--ease);
}
@media (min-width: 880px) {
  .data-row { grid-template-columns: 60px 2fr 1.4fr 1fr 1fr 32px; gap: 24px; align-items: baseline; padding: 32px 16px; }
}
.data-row:hover { background: var(--paper-100); padding-inline: 24px; }
.data-row__num { font-family: var(--mono); font-size: 12px; color: var(--filete); letter-spacing: 0.08em; }
.data-row__title { font-family: var(--serif); font-size: var(--t-lg); line-height: 1.2; }
.data-row__meta { font-size: 13px; color: var(--fg-mute); }
.data-row__metric { font-family: var(--mono); font-size: 13px; color: var(--fg); }
.data-row__arrow { width: 16px; height: 16px; opacity: 0.4; transition: all var(--dur-1) var(--ease); }
.data-row:hover .data-row__arrow { opacity: 1; transform: translateX(4px); color: var(--fiic-600); }

/* ---------- Animaciones de entrada ---------- */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(24px); }
  to { opacity: 1; transform: translateY(0); }
}
.reveal {
  opacity: 0;
  animation: fadeUp 1s var(--ease-out) forwards;
}
.reveal[data-delay="1"] { animation-delay: 0.1s; }
.reveal[data-delay="2"] { animation-delay: 0.25s; }
.reveal[data-delay="3"] { animation-delay: 0.4s; }
.reveal[data-delay="4"] { animation-delay: 0.55s; }
.reveal[data-delay="5"] { animation-delay: 0.7s; }
.reveal[data-delay="6"] { animation-delay: 0.85s; }

@keyframes drawLine {
  from { stroke-dashoffset: var(--len); }
  to { stroke-dashoffset: 0; }
}