/* ============================================================================
   Fury·Studio · Landing v3 — Base
   Reset minimo, tipografia global, layout primitives, a11y, reveal variants.
   ============================================================================ */

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

html {
  -webkit-text-size-adjust: 100%;
  text-rendering: optimizeLegibility;
  scroll-behavior: smooth;
}

/* Scroll nativo del navegador. scroll-behavior: smooth solo afecta a
   navegacion por anchor (#hablamos etc), no al wheel/touch — asi no marea. */
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
}

body {
  margin: 0;
  min-height: 100vh;
  background: var(--void);
  color: var(--text-primary);
  font-family: var(--font-display);
  font-size: var(--text-body);
  line-height: var(--lh-body);
  font-feature-settings: 'ss01', 'cv11';
  font-variant-numeric: tabular-nums;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

/* ── Tipografia base ───────────────────────────────────────────────────── */
h1, h2, h3, h4, h5, h6 {
  margin: 0;
  font-weight: var(--fw-bold);
  letter-spacing: var(--ls-heading);
  line-height: var(--lh-heading);
  color: var(--text-primary);
}

p {
  margin: 0;
  line-height: var(--lh-body);
}

a {
  color: inherit;
  text-decoration: none;
  transition: color var(--dur-micro) var(--ease-in-out-quart);
}

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

button {
  font: inherit;
  color: inherit;
  background: none;
  border: 0;
  padding: 0;
  cursor: pointer;
}

::selection {
  background: var(--gold);
  color: var(--void);
}

::-webkit-scrollbar { width: 8px; }
::-webkit-scrollbar-track { background: var(--void); }
::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: 4px; }
::-webkit-scrollbar-thumb:hover { background: var(--gold); }

/* ── Focus visible (a11y, ring gold) ──────────────────────────────────── */
:focus { outline: none; }

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

/* ── Skip link (a11y) ─────────────────────────────────────────────────── */
.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  padding: var(--space-3) var(--space-4);
  background: var(--gold);
  color: var(--void);
  font-weight: var(--fw-bold);
  z-index: var(--z-overlay);
  border-radius: var(--radius-md);
  transition: top var(--dur-short) var(--ease-out-expo);
}

.skip-link:focus-visible {
  top: 1rem;
  outline: 2px solid var(--text-primary);
  outline-offset: 2px;
}

/* ── Page shell ───────────────────────────────────────────────────────── */
main {
  position: relative;
  z-index: var(--z-content);
}

section {
  position: relative;
  z-index: var(--z-content);
}

/* ── Container editorial (capado) ─────────────────────────────────────── */
.container {
  width: var(--measure-page);
  margin-inline: auto;
}

.prose {
  width: var(--measure-prose);
  margin-inline: auto;
}

.content {
  width: var(--measure-content);
  margin-inline: auto;
}

/* ── Kicker editorial ─────────────────────────────────────────────────── */
.kicker {
  font-family: var(--font-mono);
  font-size: var(--text-mono-kicker);
  font-weight: var(--fw-bold);
  color: var(--gold);
  letter-spacing: var(--ls-mono-kicker);
  text-transform: uppercase;
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: var(--space-3);
}

.kicker--muted { color: var(--text-muted); }

.kicker-line {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.kicker-line::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-subtle);
}

/* ── Buttons ──────────────────────────────────────────────────────────── */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: 0.9rem 1.5rem;
  font-family: var(--font-display);
  font-weight: var(--fw-bold);
  font-size: 0.875rem;
  letter-spacing: 0.01em;
  border-radius: var(--radius-md);
  cursor: pointer;
  border: 1px solid transparent;
  overflow: hidden;
  isolation: isolate;
  transition:
    background-color var(--dur-short) var(--ease-in-out-quart),
    border-color var(--dur-short) var(--ease-in-out-quart),
    box-shadow var(--dur-base) var(--ease-out-expo),
    color var(--dur-short) var(--ease-in-out-quart),
    transform var(--dur-short) var(--ease-in-out-quart);
}

/* Efecto Fury Studio · idéntico al hover de las service-card del Encaje */
.btn::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 70px;
  height: 70px;
  background: radial-gradient(circle at top right, rgba(197, 160, 68, 0.22) 0%, transparent 70%);
  opacity: 0;
  transition: opacity var(--dur-base) var(--ease-out-expo);
  pointer-events: none;
  z-index: 0;
}

.btn > * { position: relative; z-index: 1; }

.btn:hover { transform: translateY(-2px); }
.btn:hover::before { opacity: 1; }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--gold);
  color: var(--void);
  border-color: var(--gold);
  box-shadow: 0 0 0 0 rgba(197, 160, 68, 0);
}

.btn--primary:hover {
  background: var(--gold-hover);
  border-color: var(--gold-hover);
  box-shadow: 0 12px 32px -12px var(--gold-glow);
}

.btn__arrow {
  transition: transform var(--dur-short) var(--ease-in-out-quart);
}

.btn--primary:hover .btn__arrow { transform: translateX(4px); }

.btn--ghost {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.btn--ghost:hover {
  border-color: var(--gold);
  color: var(--gold);
}

/* ── Link secundario (inline editorial) ───────────────────────────────── */
.link-inline {
  display: inline-flex;
  align-items: baseline;
  gap: var(--space-2);
  font-weight: var(--fw-medium);
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-strong);
  padding-bottom: 1px;
  transition:
    color var(--dur-micro) var(--ease-in-out-quart),
    border-color var(--dur-micro) var(--ease-in-out-quart);
}

.link-inline:hover {
  color: var(--gold);
  border-color: var(--gold);
}

/* ── Scroll reveal (estado inicial + variantes) ───────────────────────── */
/* PROGRESSIVE ENHANCEMENT: solo aplicamos el opacity:0 si JS arranco.
   Sin JS, todo queda visible (no se rompe la pagina). */
html.js-ready .reveal {
  opacity: 0;
  transform: translateY(20px);
  filter: blur(4px);
  transition:
    opacity var(--dur-long) var(--ease-out-expo),
    transform var(--dur-long) var(--ease-out-expo),
    filter var(--dur-long) var(--ease-out-expo);
  transition-delay: var(--reveal-delay, 0s);
  will-change: opacity, transform, filter;
}

html.js-ready .reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* Reveal granular linea a linea · auto-aplicado a hijos de contenedores prose.
   Cada elemento emerge con stagger sutil al entrar al viewport. */
html.js-ready .reveal-line {
  opacity: 0;
  transform: translateY(28px);
  filter: blur(3px);
  transition:
    opacity 0.7s var(--ease-out-expo),
    transform 0.7s var(--ease-out-expo),
    filter 0.7s var(--ease-out-expo);
  transition-delay: calc(var(--reveal-i, 0) * 70ms);
  will-change: opacity, transform, filter;
}

html.js-ready .reveal-line.is-visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

@media (prefers-reduced-motion: reduce) {
  html.js-ready .reveal-line,
  html.js-ready .reveal-line.is-visible {
    opacity: 1;
    transform: none;
    filter: none;
    transition: none;
  }
}

@media (prefers-reduced-motion: reduce) {
  html.js-ready .reveal,
  html.js-ready .reveal.is-visible {
    opacity: 1;
    transform: none;
    filter: none;
    transition: none;
  }
}

/* ── Hairline horizontal (separador editorial) ────────────────────────── */
.hairline {
  height: 1px;
  width: 100%;
  background: var(--border-subtle);
  border: 0;
  margin: 0;
}

/* ── Visually hidden (a11y) ───────────────────────────────────────────── */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}