/* ======================================================
   SEBASTIÁN PIZARRO — styles.css
   ====================================================== */

/* === Variables === */
:root {
  /* Colores */
  --c-bg:           #FAFAF8;
  --c-bg-alt:       #F3F2EE;
  --c-text:         #1A1A1A;
  --c-text-2:       #555555;
  --c-text-3:       #999999;
  --c-border:       #DEDAD4;
  --c-accent:       #1A3355;

  /* Tipografía */
  --f-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
  --f-serif: Georgia, 'Times New Roman', serif;

  /* Espaciado */
  --sp-1:  0.5rem;
  --sp-2:  1rem;
  --sp-3:  1.5rem;
  --sp-4:  2rem;
  --sp-6:  3rem;
  --sp-8:  4rem;
  --sp-12: 6rem;
  --sp-16: 8rem;

  /* Layout */
  --max-w:        1100px;
  --max-w-narrow: 680px;
  --nav-h:        64px;
}

/* === Reset y base === */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
  }
}

body {
  font-family: var(--f-sans);
  background-color: var(--c-bg);
  color: var(--c-text);
  line-height: 1.75;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

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

ul, ol {
  list-style: none;
}

/* === Enlace de salto (accesibilidad) === */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--sp-4);
  background: var(--c-accent);
  color: #fff;
  padding: var(--sp-1) var(--sp-3);
  font-size: 0.875rem;
  z-index: 200;
  border-radius: 0 0 4px 4px;
  transition: top 0.2s ease;
}

.skip-link:focus {
  top: 0;
}

/* === Foco visible (accesibilidad) === */
:focus-visible {
  outline: 2px solid var(--c-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

/* === Contenedor === */
.container {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--sp-4);
}

.container--narrow {
  max-width: var(--max-w-narrow);
}

/* ======================================================
   NAVEGACIÓN
   ====================================================== */

.site-header {
  position: fixed;
  inset-block-start: 0;
  inset-inline: 0;
  z-index: 100;
  height: var(--nav-h);
  background: transparent;
  transition: background 0.4s ease, box-shadow 0.4s ease;
}

.site-header.scrolled {
  background: rgba(250, 250, 248, 0.95);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
  box-shadow: 0 1px 0 var(--c-border);
}

.nav-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--nav-h);
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--sp-4);
}

.nav-logo {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  opacity: 0.9;
  transition: opacity 0.2s;
}

.nav-log-img {
  height: 50px;
}

.nav-logo:hover {
  opacity: 1;
}

.nav-menu ul {
  display: flex;
  gap: var(--sp-6);
  align-items: center;
}

.nav-link {
  font-size: 0.875rem;
  font-weight: 500;
  letter-spacing: 0.02em;
  color: var(--c-text-2);
  position: relative;
  transition: color 0.2s;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -3px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--c-accent);
  transition: width 0.3s ease;
}

.nav-link:hover {
  color: var(--c-text);
}

.nav-link:hover::after {
  width: 100%;
}

/* Botón hamburguesa */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 8px;
  border-radius: 4px;
}

.nav-bar {
  display: block;
  width: 22px;
  height: 1.5px;
  background: var(--c-text);
  transition: transform 0.3s ease, opacity 0.3s ease;
}

.nav-toggle[aria-expanded="true"] .nav-bar:nth-child(1) {
  transform: translateY(6.5px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .nav-bar:nth-child(2) {
  opacity: 0;
}
.nav-toggle[aria-expanded="true"] .nav-bar:nth-child(3) {
  transform: translateY(-6.5px) rotate(-45deg);
}

/* Menú móvil */
@media (max-width: 680px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    inset: var(--nav-h) 0 0 0;
    background: var(--c-bg);
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    padding: var(--sp-8);
  }

  .nav-menu.is-open {
    display: flex;
  }

  .nav-menu ul {
    flex-direction: column;
    gap: var(--sp-8);
    text-align: center;
  }

  .nav-link {
    font-size: 1.5rem;
    font-weight: 600;
    color: var(--c-text);
    letter-spacing: -0.01em;
  }

  .nav-link::after {
    bottom: -4px;
  }
}

/* ======================================================
   HERO
   ====================================================== */

.hero {
  min-height: 100svh;
  display: flex;
  align-items: center;
  padding-block-start: var(--nav-h);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--sp-12);
  align-items: center;
  padding-block: var(--sp-12);
}

.hero-content {
  display: flex;
  flex-direction: column;
  gap: var(--sp-4);
}

.hero-name {
  font-size: 0.8125rem;
  font-weight: 500;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--c-text-3);
}

.hero-title {
  font-size: clamp(2.25rem, 4.5vw, 3.75rem);
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
  color: var(--c-text);
}

.hero-lead {
  font-size: 1.125rem;
  line-height: 1.65;
  color: var(--c-text-2);
  max-width: 44ch;
}

.hero-body {
  font-size: 1rem;
  line-height: 1.8;
  color: var(--c-text-2);
  max-width: 48ch;
}

.hero-cta {
  display: inline-flex;
  align-items: center;
  gap: 0.5em;
  font-size: 0.875rem;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--c-accent);
  border-bottom: 1px solid currentColor;
  padding-bottom: 3px;
  width: fit-content;
  transition: opacity 0.2s;
}

.hero-cta::after {
  content: '→';
  font-size: 0.9em;
}

.hero-cta:hover {
  opacity: 0.65;
}

/* Columna de imagen */
.hero-visual {
  display: flex;
  flex-direction: column;
  align-items: flex-end;
  gap: var(--sp-4);
  padding-block-start: var(--sp-8);
}

.hero-image-frame {
  width: 88%;
  max-width: 360px;
  position: relative;
}

.hero-image-frame::before {
  content: '';
  position: absolute;
  inset: -10px -10px 10px 10px;
  border: 1px solid var(--c-border);
  z-index: -1;
}

.hero-image {
  width: 100%;
  aspect-ratio: 3 / 4;
  object-fit: cover;
  object-position: center top;
  filter: grayscale(15%);
}

.hero-scroll-hint {
  font-size: 0.75rem;
  font-weight: 500;
  letter-spacing: 0.08em;
  color: var(--c-text-3);
  writing-mode: vertical-rl;
  text-orientation: mixed;
  padding-inline-end: var(--sp-4);
  animation: pulse-down 2s ease-in-out infinite;
}

@keyframes pulse-down {
  0%, 100% { transform: translateY(0); opacity: 0.5; }
  50% { transform: translateY(6px); opacity: 1; }
}

/* Hero móvil */
@media (max-width: 768px) {
  .hero {
    align-items: flex-start;
    padding-block-start: calc(var(--nav-h) + var(--sp-4));
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: var(--sp-8);
    padding-block: var(--sp-8);
  }

  .hero-visual {
    order: 2;
    align-items: center;
    padding-block-start: 0;
  }

  .hero-image-frame {
    width: 70%;
    max-width: 260px;
  }

  .hero-scroll-hint {
    writing-mode: horizontal-tb;
    animation: pulse-down-horizontal 2s ease-in-out infinite;
  }

  @keyframes pulse-down-horizontal {
    0%, 100% { transform: translateY(0); opacity: 0.5; }
    50% { transform: translateY(4px); opacity: 1; }
  }
}

/* ======================================================
   SECCIONES GENERALES
   ====================================================== */

.section {
  padding-block: var(--sp-16);
}

.section--tinted {
  background-color: var(--c-bg-alt);
}

/* Encabezado de sección con línea de acento */
.section-heading {
  font-size: clamp(1.75rem, 3vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.15;
  margin-bottom: var(--sp-8);
  padding-top: var(--sp-4);
  position: relative;
}

.section-heading::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  width: 36px;
  height: 2px;
  background: var(--c-accent);
}

/* === Prose (texto de párrafos) === */
.prose p {
  font-size: 1.0625rem;
  line-height: 1.85;
  color: var(--c-text-2);
  max-width: 62ch;
}

.prose p + p {
  margin-top: var(--sp-4);
}

/* ======================================================
   CAPACIDADES
   ====================================================== */

.capabilities {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  border-top: 1px solid var(--c-border);
  margin-bottom: var(--sp-8);
}

.capability {
  padding: var(--sp-8) var(--sp-6) var(--sp-8) 0;
  border-right: 1px solid var(--c-border);
}

.capability:first-child {
  padding-left: 0;
}

.capability:last-child {
  border-right: none;
  padding-right: 0;
}

.capability:not(:first-child) {
  padding-left: var(--sp-6);
}

.capability-num {
  display: block;
  font-size: 0.6875rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  color: var(--c-text-3);
  margin-bottom: var(--sp-4);
}

.capability-title {
  font-size: 1.1875rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  color: var(--c-text);
  margin-bottom: var(--sp-2);
}

.capability-body {
  font-size: 0.9375rem;
  line-height: 1.75;
  color: var(--c-text-2);
}

.capabilities-note {
  font-family: var(--f-serif);
  font-style: italic;
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--c-text-2);
  border-left: 2px solid var(--c-accent);
  padding-left: var(--sp-4);
}

@media (max-width: 768px) {
  .capabilities {
    grid-template-columns: 1fr;
    border-top: none;
  }

  .capability {
    border-right: none;
    border-top: 1px solid var(--c-border);
    padding: var(--sp-6) 0 !important;
  }
}

/* ======================================================
   FORMA DE TRABAJAR
   ====================================================== */

.execution-list {
  display: flex;
  flex-direction: column;
}

.execution-list li {
  font-size: 1.0625rem;
  line-height: 1.75;
  color: var(--c-text-2);
  padding-block: var(--sp-4);
  padding-left: var(--sp-4);
  border-bottom: 1px solid var(--c-border);
  position: relative;
  transition: color 0.2s;
}

.execution-list li:first-child {
  border-top: 1px solid var(--c-border);
}

.execution-list li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 50%;
  transform: translateY(-50%);
  width: 2px;
  height: 0;
  background: var(--c-accent);
  transition: height 0.35s ease;
}

.execution-list li:hover {
  color: var(--c-text);
}

.execution-list li:hover::before {
  height: 55%;
}

/* ======================================================
   PERSPECTIVA
   ====================================================== */

.perspective-lines {
  display: flex;
  flex-direction: column;
  margin-bottom: var(--sp-8);
}

.perspective-line {
  font-size: 1.0625rem;
  line-height: 1.7;
  color: var(--c-text-2);
  padding-block: var(--sp-3);
  border-bottom: 1px solid var(--c-border);
}

.perspective-line:first-child {
  border-top: 1px solid var(--c-border);
}

.perspective-featured {
  font-family: var(--f-serif);
  font-style: italic;
  font-size: clamp(1.25rem, 2.5vw, 1.625rem);
  line-height: 1.5;
  color: var(--c-text);
  border-left: 3px solid var(--c-accent);
  padding: var(--sp-4) var(--sp-6);
}

/* ======================================================
   PRESENCIA / REDES SOCIALES
   ====================================================== */

.presence-intro {
  font-size: 1.0625rem;
  line-height: 1.8;
  color: var(--c-text-2);
  margin-bottom: var(--sp-6);
  max-width: 52ch;
}

.social-nav {
  margin-bottom: var(--sp-6);
}

.social-list {
  display: flex;
  flex-direction: column;
}

.social-item {
  border-bottom: 1px solid var(--c-border);
}

.social-item:first-child {
  border-top: 1px solid var(--c-border);
}

.social-link {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding-block: var(--sp-4);
  font-size: 0.9375rem;
  font-weight: 500;
  color: var(--c-text);
  transition: color 0.2s, padding-left 0.25s;
}

.social-link:hover {
  color: var(--c-accent);
  padding-left: var(--sp-2);
}

.social-link-arrow {
  font-size: 0.875rem;
  color: var(--c-text-3);
  transition: transform 0.25s ease, color 0.2s;
}

.social-link:hover .social-link-arrow {
  transform: translateX(5px);
  color: var(--c-accent);
}

.presence-note {
  font-size: 0.9375rem;
  line-height: 1.7;
  color: var(--c-text-3);
  max-width: 52ch;
}

/* ======================================================
   FOOTER
   ====================================================== */

.site-footer {
  border-top: 1px solid var(--c-border);
  padding-block: var(--sp-8);
}

.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--sp-3);
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  opacity: 0.92;
  transition: opacity 0.2s;
}

.footer-brand:hover {
  opacity: 1;
}

.footer-logo {
  display: block;
  height: 28px;
  width: auto;
}

.footer-legal,
.footer-year {
  font-size: 0.875rem;
  color: var(--c-text-3);
}

.footer-legal {
  margin: 0;
  text-align: center;
}

.footer-top {
  font-size: 0.875rem;
  font-weight: 500;
  color: var(--c-text-2);
  transition: color 0.2s;
}

.footer-top:hover {
  color: var(--c-accent);
}

@media (max-width: 480px) {
  .footer-inner {
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: var(--sp-2);
  }

  .footer-top {
    margin-top: var(--sp-1);
  }
}

/* ======================================================
   REVEAL — aparición al hacer scroll
   ====================================================== */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.65s ease, transform 0.65s ease;
}

.reveal.is-visible {
  opacity: 1;
  transform: none;
}

/* Retardo escalonado para elementos en secuencia */
.reveal:nth-child(2) { transition-delay: 0.1s; }
.reveal:nth-child(3) { transition-delay: 0.2s; }
.reveal:nth-child(4) { transition-delay: 0.3s; }

/* Reducción de movimiento: sin animación */
@media (prefers-reduced-motion: reduce) {
  .reveal {
    opacity: 1;
    transform: none;
    transition: none;
  }
}