/* ==========================================================================
   BÄSED Interior Studio — Lujo silencioso editorial
   Tokens, base y secciones. Sin frameworks.
   ========================================================================== */

/* --------------------------------------------------------------------------
   Tokens
   -------------------------------------------------------------------------- */
:root {
  /* Color */
  --paper: #F7F4EF;
  --sand: #EDE7DF;
  --ink: #2B2420;
  --taupe: #A89784;
  --accent: #6B7263; /* fondos/botón con texto claro (4.54:1) */
  --accent-ink: #616852; /* texto de acento sobre claro: 4.74:1 sobre arena, 5.3:1 sobre papel */
  --brown: #3B2F27;
  --muted: #6E6255; /* derivado accesible sobre claro (5.4:1) */

  /* Tipografía */
  --font-display: "Bodoni Moda", Didot, Georgia, "Times New Roman", serif;
  --font-body: "DM Sans", system-ui, -apple-system, "Segoe UI", sans-serif;

  --fs-display: clamp(3.25rem, 12vw, 7.5rem);
  --fs-promise: clamp(1.75rem, 3vw, 2.25rem);
  --fs-manifesto: clamp(2.4rem, 5.4vw, 4.4rem);
  --fs-headline: clamp(2rem, 4.5vw, 3.4rem);
  --fs-title: clamp(1.75rem, 2.4vw, 2.1rem);
  --fs-numeral: clamp(2.75rem, 5vw, 4.5rem);
  --fs-body: 1.0625rem;
  --fs-body-sm: 1rem;
  --fs-meta: 0.9rem;
  --fs-label: 0.75rem;
  --fs-brand: 1.5rem;

  --measure: 66ch;

  /* Espaciado (múltiplos de 8) */
  --space-2xs: 8px;
  --space-xs: 16px;
  --space-sm: 24px;
  --space-md: 32px;
  --space-lg: 48px;
  --space-xl: 64px;
  --space-2xl: 96px;
  --space-3xl: 128px;

  --container: 1240px;

  /* Movimiento */
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
  --dur: 200ms;

  /* Filetes */
  --rule-light: rgba(168, 151, 132, 0.38);
  --rule-dark: rgba(168, 151, 132, 0.3);
  --rule-ink: rgba(43, 36, 32, 0.16);
}

/* --------------------------------------------------------------------------
   Base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after { box-sizing: border-box; }

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: smooth;
  scrollbar-color: var(--taupe) var(--paper);
}

body {
  margin: 0;
  background-color: var(--paper);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  font-weight: 400;
  line-height: 1.65;
  letter-spacing: 0;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

h1, h2, h3, p, dl, dd, figure, blockquote { margin: 0; }

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

a { color: inherit; }

em { font-style: italic; }

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

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 2px;
}

.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-left: clamp(1.25rem, 5vw, 4rem);
  padding-right: clamp(1.25rem, 5vw, 4rem);
}

.visually-hidden {
  position: absolute !important;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0 0 0 0);
  white-space: nowrap;
  border: 0;
}

.skip-link {
  position: absolute;
  top: 0;
  left: 50%;
  transform: translate(-50%, -120%);
  z-index: 100;
  background: var(--ink);
  color: var(--paper);
  padding: 12px 20px;
  font-size: var(--fs-label);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
  transition: transform var(--dur) var(--ease);
}
.skip-link:focus { transform: translate(-50%, 0); }

/* Kicker / label */
.kicker {
  font-size: var(--fs-label);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  line-height: 1.4;
}

/* --------------------------------------------------------------------------
   Botones
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-body);
  font-size: var(--fs-label);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
  padding: 18px 40px;
  border: 0;
  border-radius: 0;
  cursor: pointer;
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease);
}

.btn--primary {
  background-color: var(--accent);
  color: var(--paper);
}
.btn--primary:hover { background-color: var(--brown); }
.btn--primary:active { background-color: var(--ink); }

/* --------------------------------------------------------------------------
   Header
   -------------------------------------------------------------------------- */
.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 50;
  color: var(--paper);
  transition: background-color var(--dur) var(--ease), color var(--dur) var(--ease), border-color var(--dur) var(--ease);
  border-bottom: 1px solid transparent;
}

.site-header__inner {
  max-width: var(--container);
  margin-inline: auto;
  padding: 18px clamp(1.25rem, 5vw, 4rem);
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.5vw, 2.5rem);
}

.site-header__inner > .brand { margin-right: auto; }

.site-header:not(.is-scrolled) {
  text-shadow: 0 1px 3px rgba(43, 36, 32, 0.5);
}

.site-header.is-scrolled {
  background-color: var(--paper);
  color: var(--ink);
  border-bottom-color: var(--rule-ink);
  text-shadow: none;
}
.site-header.is-scrolled .brand { color: var(--ink); }

.brand {
  font-family: var(--font-display);
  font-size: var(--fs-brand);
  font-weight: 500;
  letter-spacing: 0.02em;
  line-height: 1;
  text-decoration: none;
  color: inherit;
}

.nav {
  display: flex;
  align-items: center;
  gap: clamp(1.25rem, 2.5vw, 2.5rem);
}

.nav__link {
  position: relative;
  font-size: var(--fs-label);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
  color: inherit;
  padding-bottom: 3px;
}
.nav__link::after {
  content: "";
  position: absolute;
  left: 0; bottom: 0;
  width: 100%;
  height: 1px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur) var(--ease);
}
.nav__link:hover::after,
.nav__link:focus-visible::after { transform: scaleX(1); }

.nav__link--cta { color: var(--accent); }
.site-header:not(.is-scrolled) .nav__link--cta { color: var(--paper); }

/* --------------------------------------------------------------------------
   Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: flex-end;
  isolation: isolate;
  background-color: var(--ink);
  overflow: hidden;
  padding-top: clamp(4rem, 8vw, 8rem);
  padding-bottom: clamp(3rem, 6vw, 5rem);
}

.hero__media {
  position: absolute;
  inset: 0;
  z-index: -2;
}
.hero__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 45%;
}

.hero__veil {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(to bottom, rgba(43, 36, 32, 0.72) 0%, rgba(43, 36, 32, 0.6) 12%, rgba(43, 36, 32, 0) 30%),
    linear-gradient(to top, rgba(43, 36, 32, 0.86) 0%, rgba(43, 36, 32, 0.35) 46%, rgba(43, 36, 32, 0.2) 100%),
    linear-gradient(to right, rgba(43, 36, 32, 0.5) 0%, rgba(43, 36, 32, 0) 60%);
}

.hero__content {
  position: relative;
  color: var(--paper);
  max-width: 100%;
}

.hero__meta {
  display: grid;
  grid-template-columns: minmax(8rem, 0.6fr) minmax(0, 1.4fr);
  gap: clamp(1rem, 4vw, 3rem);
  align-items: end;
  margin-top: clamp(1.5rem, 3vw, 2.25rem);
  padding-top: clamp(1.25rem, 2.5vw, 1.75rem);
  border-top: 1px solid rgba(247, 244, 239, 0.28);
}

.hero__kicker {
  color: var(--paper);
  opacity: 0.85;
  max-width: 18ch;
}

.hero__wordmark {
  font-family: var(--font-display);
  font-size: var(--fs-display);
  font-weight: 500;
  line-height: normal;
  letter-spacing: -0.015em;
  margin: 0;
}

.hero__promise {
  font-family: var(--font-display);
  font-size: var(--fs-promise);
  font-weight: 400;
  line-height: 1.25;
  letter-spacing: -0.01em;
  max-width: 30ch;
  color: var(--paper);
}

.hero__actions {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: clamp(1.5rem, 3vw, 2.5rem);
  margin-top: clamp(2rem, 4vw, 3rem);
}

.hero__scroll {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: var(--fs-label);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  text-decoration: none;
  color: var(--paper);
  opacity: 0.9;
  transition: opacity var(--dur) var(--ease);
}
.hero__scroll:hover { opacity: 1; }
.hero__scroll-line {
  display: block;
  width: 48px;
  height: 1px;
  background: currentColor;
  transform-origin: left;
}

/* --------------------------------------------------------------------------
   Manifiesto
   -------------------------------------------------------------------------- */
.manifesto {
  background-color: var(--sand);
  padding-top: clamp(4rem, 9vw, 9rem);
  padding-bottom: clamp(4rem, 9vw, 9rem);
}

.manifesto__grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(2rem, 5vw, 4rem);
  align-items: start;
}

.manifesto__lead {
  grid-column: 1 / 9;
  font-family: var(--font-display);
  font-size: var(--fs-manifesto);
  font-weight: 500;
  line-height: 1.06;
  letter-spacing: -0.02em;
  text-wrap: balance;
}

.manifesto__body {
  grid-column: 9 / 13;
  color: var(--muted);
  display: grid;
  gap: 1.1rem;
  max-width: var(--measure);
}
.manifesto__body p { line-height: 1.7; }
.manifesto__body em {
  font-family: var(--font-display);
  font-style: italic;
  font-size: 1.15em;
  color: var(--ink);
}

/* --------------------------------------------------------------------------
   Cabecera de sección
   -------------------------------------------------------------------------- */
.section-head {
  display: grid;
  grid-template-columns: auto 1fr;
  align-items: end;
  gap: clamp(1rem, 4vw, 3rem);
  padding-top: var(--space-lg);
  border-top: 1px solid var(--rule-light);
  margin-bottom: clamp(3rem, 7vw, 6rem);
}
.section-head__title {
  font-family: var(--font-display);
  font-size: var(--fs-headline);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.015em;
}
.section-head__note {
  justify-self: end;
  max-width: 34ch;
  color: var(--muted);
  font-size: var(--fs-meta);
  text-align: right;
}
.section-head--dark { border-top-color: var(--rule-dark); }
.section-head--dark .section-head__note { color: var(--taupe); }

/* --------------------------------------------------------------------------
   Trabajo
   -------------------------------------------------------------------------- */
.work {
  padding-top: clamp(4rem, 9vw, 9rem);
  padding-bottom: clamp(4rem, 9vw, 9rem);
}

.work__grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  column-gap: clamp(1.5rem, 3vw, 3rem);
  row-gap: clamp(3rem, 8vw, 7rem);
}

.project { margin: 0; }
.project--a { grid-column: 1 / 6; grid-row: 1; }
.project--b { grid-column: 7 / 13; grid-row: 1; margin-top: clamp(3rem, 12vw, 11rem); }
.project--c { grid-column: 2 / 7; grid-row: 2; }

.project__media {
  display: block;
  overflow: hidden;
  background-color: var(--sand);
  aspect-ratio: 4 / 5;
}
.project--b .project__media { aspect-ratio: 7 / 5; }

.project__media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform 420ms var(--ease);
}

.project:hover .project__media img { transform: scale(1.045); }

.project__cap {
  display: grid;
  gap: 0.4rem;
  padding-top: var(--space-sm);
  border-top: 1px solid var(--rule-light);
  margin-top: var(--space-sm);
}

.project__kicker {
  font-size: var(--fs-label);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
}

.project__title {
  font-family: var(--font-display);
  font-size: var(--fs-title);
  font-weight: 500;
  line-height: 1.15;
  letter-spacing: -0.01em;
}

.project__desc {
  color: var(--muted);
  max-width: 38ch;
}

/* --------------------------------------------------------------------------
   Proceso
   -------------------------------------------------------------------------- */
.process {
  background-color: var(--ink);
  color: var(--paper);
  padding-top: clamp(4rem, 9vw, 9rem);
  padding-bottom: clamp(4rem, 9vw, 9rem);
}

.process__list {
  list-style: none;
  margin: 0;
  padding-top: var(--space-2xs);
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  border-top: 1px solid var(--rule-dark);
}

.step {
  padding: clamp(1.5rem, 3vw, 2.5rem) clamp(1rem, 2vw, 2rem) clamp(1rem, 2vw, 1.5rem) 0;
  border-right: 1px solid var(--rule-dark);
}
.step:last-child { border-right: 0; }
.step:not(:first-child) { padding-left: clamp(1rem, 2vw, 2rem); }

.step__num {
  display: block;
  font-family: var(--font-display);
  font-size: var(--fs-numeral);
  font-weight: 400;
  line-height: 1;
  letter-spacing: -0.02em;
  color: var(--taupe);
  margin-bottom: clamp(1.5rem, 3vw, 2.5rem);
}

.step__title {
  font-family: var(--font-display);
  font-size: var(--fs-title);
  font-weight: 500;
  line-height: 1.15;
  margin-bottom: 0.75rem;
}

.step__copy {
  color: var(--taupe);
  font-size: var(--fs-body-sm);
  line-height: 1.65;
  max-width: 34ch;
}

/* --------------------------------------------------------------------------
   Estudio
   -------------------------------------------------------------------------- */
.studio {
  padding-top: clamp(4rem, 9vw, 9rem);
  padding-bottom: clamp(4rem, 9vw, 9rem);
}

.studio__grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(2rem, 5vw, 5rem);
  align-items: start;
}

.studio__media { grid-column: 1 / 7; }
.studio__media img {
  width: 100%;
  height: 100%;
  aspect-ratio: 7 / 5;
  object-fit: cover;
}

.studio__body { grid-column: 8 / 13; }

.studio__title {
  font-family: var(--font-display);
  font-size: var(--fs-headline);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin-bottom: clamp(1.5rem, 3vw, 2rem);
}

.studio__body > p {
  color: var(--muted);
  max-width: var(--measure);
  margin-bottom: 1.1rem;
}

.values {
  margin-top: clamp(2.5rem, 5vw, 4rem);
  padding-top: 8px;
  border-top: 1px solid var(--rule-light);
}
.values__item {
  display: grid;
  grid-template-columns: minmax(9rem, 1fr) 1.6fr;
  gap: clamp(1rem, 3vw, 2.5rem);
  padding: clamp(1.25rem, 2.5vw, 1.75rem) 0;
  border-bottom: 1px solid var(--rule-light);
}
.values__term {
  font-family: var(--font-display);
  font-size: var(--fs-title);
  font-weight: 500;
  line-height: 1.15;
}
.values__desc {
  color: var(--muted);
  max-width: 44ch;
}

/* --------------------------------------------------------------------------
   Contacto
   -------------------------------------------------------------------------- */
.contact {
  background-color: var(--sand);
  padding-top: clamp(4rem, 9vw, 9rem);
  padding-bottom: clamp(4rem, 9vw, 9rem);
}

.contact__grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: clamp(2.5rem, 5vw, 4rem);
  align-items: start;
}

.contact__intro { grid-column: 1 / 6; }

.contact__title {
  font-family: var(--font-display);
  font-size: var(--fs-headline);
  font-weight: 500;
  line-height: 1.05;
  letter-spacing: -0.015em;
  margin-bottom: clamp(1rem, 2vw, 1.5rem);
}

.contact__lead {
  color: var(--muted);
  max-width: 40ch;
  margin-bottom: clamp(2rem, 4vw, 3rem);
}

.contact__direct .kicker { color: var(--muted); margin-bottom: var(--space-sm); }
.contact__line { margin-bottom: 0.35rem; }
.contact__line a {
  text-decoration: none;
  border-bottom: 1px solid var(--rule-light);
  padding-bottom: 2px;
  transition: border-color var(--dur) var(--ease);
}
.contact__line a:hover { border-color: var(--ink); }
.contact__note {
  color: var(--muted);
  font-size: var(--fs-meta);
  margin-top: var(--space-sm);
}

/* Formulario */
.form { grid-column: 8 / 13; }

.form__field { margin-bottom: clamp(1.5rem, 3vw, 2rem); }

.form__label {
  display: block;
  font-size: var(--fs-label);
  font-weight: 500;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--muted);
  margin-bottom: var(--space-2xs);
}

.form__input {
  width: 100%;
  background: transparent;
  color: var(--ink);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.5;
  padding: 14px 0;
  border: 0;
  border-bottom: 1px solid var(--taupe);
  border-radius: 0;
  transition: border-color 180ms var(--ease);
}
.form__input::placeholder { color: var(--muted); opacity: 0.6; }
.form__input--area { resize: vertical; min-height: 5rem; }

.form__input:focus { outline: none; border-bottom-color: var(--ink); }
.form__input:focus-visible { outline: none; }
.form__field:focus-within .form__label { color: var(--accent-ink); }

.form__actions { margin-top: clamp(2rem, 4vw, 2.75rem); }

.form__status {
  font-size: var(--fs-meta);
  color: var(--muted);
  margin-top: var(--space-sm);
  min-height: 1.2em;
}
.form__status[data-state="ok"] { color: var(--accent-ink); }
.form__status[data-state="error"] { color: #8a4b3b; }

.form--sent .form__input { border-bottom-color: var(--rule-light); }

/* --------------------------------------------------------------------------
   Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background-color: var(--ink);
  color: var(--paper);
  padding-top: clamp(4rem, 8vw, 7rem);
  padding-bottom: clamp(2rem, 4vw, 3rem);
}

.site-footer__inner {
  display: grid;
  justify-items: start;
  gap: clamp(1.5rem, 3vw, 2.5rem);
}

.site-footer__cta {
  font-family: var(--font-display);
  font-size: var(--fs-headline);
  font-weight: 500;
  line-height: 1.1;
  letter-spacing: -0.015em;
  max-width: 22ch;
  text-wrap: balance;
}

.site-footer__meta {
  width: 100%;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
  padding-top: clamp(2.5rem, 5vw, 4rem);
  border-top: 1px solid var(--rule-dark);
  color: var(--taupe);
  font-size: var(--fs-meta);
  letter-spacing: 0.01em;
}
.brand--footer { color: var(--paper); }

/* --------------------------------------------------------------------------
   Reveal on scroll
   -------------------------------------------------------------------------- */
.js [data-reveal] {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 700ms var(--ease), transform 700ms var(--ease);
  will-change: opacity, transform;
}
.js [data-reveal].is-visible {
  opacity: 1;
  transform: none;
  will-change: auto;
}

.js [data-hero-word] {
  display: inline-block;
  opacity: 0;
  transform: translateY(0.12em);
  transition: opacity 900ms var(--ease), transform 900ms var(--ease);
}
.js .hero.is-ready [data-hero-word] { opacity: 1; transform: none; }

.js .hero__media img { transform: scale(1.06); }
.js .hero.is-ready .hero__media img {
  transform: scale(1);
  transition: transform 1800ms var(--ease);
}

/* Escalona la entrada del hero */
.js .hero__kicker { transition-delay: 120ms; }
.js .hero__promise { transition-delay: 320ms; }
.js .hero__actions { transition-delay: 460ms; }

/* --------------------------------------------------------------------------
   Responsive
   -------------------------------------------------------------------------- */
@media (max-width: 1024px) {
  .manifesto__lead { grid-column: 1 / 13; }
  .manifesto__body { grid-column: 1 / 11; }

  .studio__media { grid-column: 1 / 13; }
  .studio__body { grid-column: 1 / 12; }

  .contact__intro { grid-column: 1 / 13; }
  .form { grid-column: 1 / 13; }
}

@media (max-width: 768px) {
  .site-header__inner {
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    row-gap: 6px;
    column-gap: clamp(1rem, 3vw, 1.5rem);
  }
  .site-header__inner > .brand {
    grid-column: 1;
    grid-row: 1;
    margin-right: 0;
  }
  .site-header__inner > .nav__link--cta {
    grid-column: 2;
    grid-row: 1;
    justify-self: end;
  }
  .nav {
    grid-column: 1 / -1;
    grid-row: 2;
    flex-wrap: wrap;
    gap: 0.5rem 1.1rem;
    justify-content: flex-start;
  }

  .section-head {
    grid-template-columns: 1fr;
    align-items: start;
  }
  .section-head__note { justify-self: start; text-align: left; }

  .project--a,
  .project--b,
  .project--c {
    grid-column: 1 / 13;
    grid-row: auto;
    margin-top: 0;
  }
  .project--b .project__media { aspect-ratio: 4 / 5; }

  .process__list { grid-template-columns: 1fr; border-top: 0; }
  .step {
    border-right: 0;
    border-top: 1px solid var(--rule-dark);
    padding: clamp(1.5rem, 5vw, 2rem) 0;
  }
  .step:not(:first-child) { padding-left: 0; }
  .step__num { margin-bottom: 1rem; }

  .values__item {
    grid-template-columns: 1fr;
    gap: 0.35rem;
  }
}

@media (max-width: 560px) {
  .hero__scroll { display: none; }
  .hero__meta {
    grid-template-columns: 1fr;
    gap: 0.75rem;
    align-items: start;
  }
  .site-footer__meta { flex-direction: column; align-items: flex-start; }
}

/* --------------------------------------------------------------------------
   Movimiento reducido
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  .js [data-reveal],
  .js [data-hero-word] {
    opacity: 1 !important;
    transform: none !important;
  }
  .js .hero__media img { transform: none !important; }
  .project__media img { transition: none !important; }
  .project:hover .project__media img { transform: none !important; }
}