/* =========================================================
   FOTOMATÓN GINES · Hoja de estilos
   Mobile-first · Accesible AAA · Dark / Light mode
   ========================================================= */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: .01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: .01ms !important;
    scroll-behavior: auto !important;
  }
}

:root {
  /* Modo oscuro (por defecto). Tokens *-fg cumplen WCAG AAA (≥7:1) */
  --c-bg: #0f0f1a;
  --c-bg-alt: #15162a;
  --c-surface: #1c1d33;
  --c-surface-2: #24263f;

  --c-text: #f5f2ea;
  --c-text-dim: #b6b4c9;
  --c-muted-fg: #b8b6d0;
  --c-gold-fg: #d9b46a;
  --c-rose-fg: #f3a5be;
  --c-accent-fg: #c9a8ec;
  --c-success-fg: #6dd39a;
  --c-error-fg: #ff9db0;

  --c-gold: #d9b46a;
  --c-gold-2: #f0d18a;
  --c-rose: #e8809f;
  --c-accent: #b48be0;

  --c-border: rgba(255,255,255,.08);
  --c-border-strong: rgba(255,255,255,.18);

  --grad-primary: linear-gradient(135deg, #d9b46a 0%, #f0d18a 50%, #e8809f 100%);
  --grad-hero: radial-gradient(1200px 600px at 20% 0%, rgba(217,180,106,.18), transparent 60%),
               radial-gradient(900px 500px at 80% 20%, rgba(180,139,224,.18), transparent 60%),
               radial-gradient(700px 400px at 50% 100%, rgba(232,128,159,.14), transparent 60%);

  --font-body: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, sans-serif;
  --font-display: 'Playfair Display', Georgia, serif;

  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;

  --shadow-sm: 0 4px 12px rgba(0,0,0,.15);
  --shadow: 0 10px 40px rgba(0,0,0,.25);
  --shadow-lg: 0 20px 60px rgba(0,0,0,.4);

  --container: 1200px;
  --container-narrow: 780px;
  --header-h: 72px;

  --dur: 220ms;
  --ease: cubic-bezier(.4,.2,.2,1);
}

[data-theme="light"] {
  --c-bg: #fbf9f3;
  --c-bg-alt: #f4efe3;
  --c-surface: #ffffff;
  --c-surface-2: #fbf7ec;

  --c-text: #1a1a2e;
  --c-text-dim: #4a4a63;
  --c-muted-fg: #4d4d66;
  --c-gold-fg: #6b4a08;
  --c-rose-fg: #8a1e45;
  --c-accent-fg: #5a2ea8;
  --c-success-fg: #054822;
  --c-error-fg: #8a0d24;

  --c-border: rgba(0,0,0,.08);
  --c-border-strong: rgba(0,0,0,.16);
  --shadow-sm: 0 4px 12px rgba(120,90,40,.08);
  --shadow: 0 10px 40px rgba(120,90,40,.12);
  --shadow-lg: 0 20px 60px rgba(120,90,40,.18);
}

body {
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  color: var(--c-text);
  background: var(--c-bg);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

img { max-width: 100%; height: auto; display: block; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; border: 0; background: transparent; color: inherit; }
input, textarea, select { font: inherit; color: inherit; }

:focus-visible {
  outline: 3px solid var(--c-gold);
  outline-offset: 3px;
  border-radius: 4px;
}

.skip-link {
  position: absolute;
  top: -100px; left: 1rem;
  background: var(--c-gold);
  color: #1a1a2e;
  padding: .75rem 1rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  z-index: 999;
  transition: top var(--dur) var(--ease);
}
.skip-link:focus { top: 1rem; }

.container { width: 100%; max-width: var(--container); margin: 0 auto; padding: 0 1.25rem; }
.container--narrow { max-width: var(--container-narrow); }

.section { padding: clamp(3rem, 8vw, 6rem) 0; position: relative; }
.section--alt { background: var(--c-bg-alt); }

.section__head { text-align: center; max-width: 720px; margin: 0 auto clamp(2rem, 5vw, 3.5rem); }
.eyebrow {
  display: inline-block;
  font-size: .8rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .15em;
  color: var(--c-gold-fg);
  margin-bottom: .75rem;
}
.section__title {
  font-family: var(--font-display);
  font-size: clamp(1.75rem, 4vw, 2.75rem);
  line-height: 1.15;
  font-weight: 700;
  margin-bottom: 1rem;
  letter-spacing: -.01em;
}
.section__lead {
  color: var(--c-text-dim);
  font-size: 1.05rem;
  max-width: 60ch;
  margin: 0 auto;
}
.section__lead a { color: var(--c-gold-fg); }

/* Header */
.site-header {
  position: fixed; inset: 0 0 auto 0;
  height: var(--header-h);
  background: color-mix(in oklab, var(--c-bg) 85%, transparent);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--c-border);
  z-index: 100;
  transition: box-shadow var(--dur) var(--ease);
}
.site-header.is-scrolled { box-shadow: var(--shadow-sm); }
.header__inner { display: flex; align-items: center; justify-content: space-between; height: 100%; }

.brand {
  display: inline-flex; align-items: center; height: 100%;
  transition: transform var(--dur) var(--ease);
}
.brand:hover, .brand:focus-visible { transform: scale(1.03); }
.brand__logo, .brand picture, .brand img {
  height: 52px; width: auto; max-width: 100%; display: block;
}
@media (max-width: 480px) { .brand__logo, .brand img { height: 42px; } }

/* Nav */
.primary-nav { display: flex; align-items: center; gap: 1rem; }
.primary-nav ul { display: flex; align-items: center; gap: 2rem; list-style: none; }
.primary-nav a { font-weight: 500; font-size: .95rem; position: relative; transition: color var(--dur) var(--ease); }
.primary-nav a:not(.btn)::after {
  content: '';
  position: absolute; left: 0; right: 0; bottom: -6px;
  height: 2px;
  background: var(--grad-primary);
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dur) var(--ease);
}
.primary-nav a:not(.btn):hover::after,
.primary-nav a:not(.btn):focus-visible::after { transform: scaleX(1); transform-origin: left; }

.theme-toggle {
  width: 40px; height: 40px;
  border-radius: 50%;
  border: 1px solid var(--c-border-strong);
  display: inline-flex; align-items: center; justify-content: center;
  transition: transform var(--dur) var(--ease), background var(--dur) var(--ease);
}
.theme-toggle:hover { transform: rotate(-15deg); background: var(--c-surface); }

.nav-toggle {
  display: none;
  width: 44px; height: 44px;
  position: relative; z-index: 101;
}
.nav-toggle span {
  display: block; position: absolute; left: 22%; right: 22%; height: 2px;
  background: var(--c-text); border-radius: 2px;
  transition: transform var(--dur) var(--ease), opacity var(--dur) var(--ease), top var(--dur) var(--ease);
}
.nav-toggle span:nth-child(1) { top: 32%; }
.nav-toggle span:nth-child(2) { top: 50%; }
.nav-toggle span:nth-child(3) { top: 68%; }
.nav-toggle[aria-expanded="true"] span:nth-child(1) { top: 50%; transform: rotate(45deg); }
.nav-toggle[aria-expanded="true"] span:nth-child(2) { opacity: 0; }
.nav-toggle[aria-expanded="true"] span:nth-child(3) { top: 50%; transform: rotate(-45deg); }

@media (max-width: 900px) {
  .nav-toggle { display: block; }
  .primary-nav {
    position: fixed; inset: var(--header-h) 0 0 0;
    background: var(--c-bg);
    padding: 2rem 1.5rem;
    flex-direction: column; align-items: stretch; gap: 1rem;
    transform: translateX(100%);
    transition: transform 300ms var(--ease);
    visibility: hidden;
  }
  .primary-nav.is-open { transform: translateX(0); visibility: visible; }
  .primary-nav ul { flex-direction: column; align-items: stretch; gap: 0; }
  .primary-nav li { border-bottom: 1px solid var(--c-border); }
  .primary-nav a { display: block; padding: 1rem .25rem; font-size: 1.1rem; }
}

/* Buttons */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: .5rem;
  padding: .875rem 1.5rem;
  border-radius: 999px;
  font-weight: 600; font-size: .95rem; letter-spacing: .01em;
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), background var(--dur) var(--ease);
  white-space: nowrap; cursor: pointer;
  border: 1px solid transparent;
}
.btn--primary { background: var(--grad-primary); color: #1a1a2e; box-shadow: 0 8px 24px rgba(217,180,106,.35); }
.btn--primary:hover, .btn--primary:focus-visible { transform: translateY(-2px); box-shadow: 0 12px 32px rgba(217,180,106,.5); }
.btn--secondary { background: var(--c-surface); color: var(--c-text); border-color: var(--c-border-strong); }
.btn--secondary:hover, .btn--secondary:focus-visible { background: var(--c-surface-2); transform: translateY(-2px); }
.btn--ghost { background: transparent; border-color: var(--c-gold); color: var(--c-gold-fg); padding: .5rem 1rem; }
.btn--ghost:hover, .btn--ghost:focus-visible { background: var(--c-gold); color: #1a1a2e; }
.btn--block { width: 100%; }

/* Hero */
.hero {
  position: relative; min-height: 100svh;
  padding-top: calc(var(--header-h) + 2rem);
  padding-bottom: 4rem;
  display: flex; align-items: center;
  overflow: hidden; isolation: isolate;
}
.hero__bg { position: absolute; inset: 0; background: var(--grad-hero); z-index: -1; }
.hero__glow { position: absolute; border-radius: 50%; filter: blur(80px); opacity: .5; animation: float 12s ease-in-out infinite; }
.hero__glow--1 { width: 400px; height: 400px; background: var(--c-gold); top: -100px; left: -100px; }
.hero__glow--2 { width: 500px; height: 500px; background: var(--c-accent); bottom: -150px; right: -100px; animation-delay: -3s; }
.hero__glow--3 { width: 300px; height: 300px; background: var(--c-rose); top: 40%; right: 30%; animation-delay: -6s; }
@keyframes float { 0%,100% { transform: translate(0,0) scale(1); } 50% { transform: translate(30px,-30px) scale(1.1); } }

.hero__content { text-align: center; }
.hero__eyebrow {
  display: inline-block;
  padding: .5rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--c-border-strong);
  background: rgba(255,255,255,.03);
  backdrop-filter: blur(10px);
  font-size: .85rem; font-weight: 500;
  color: var(--c-text-dim);
  margin-bottom: 2rem;
}

.hero__logo { display: block; margin: 0 auto 1.5rem; max-width: min(560px, 85%); }
.hero__logo img {
  width: 100%; height: auto;
  filter: drop-shadow(0 10px 30px rgba(0,0,0,.35));
}
[data-theme="light"] .hero__logo img { filter: drop-shadow(0 10px 30px rgba(0,0,0,.15)); }

.hero__title {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  line-height: 1.2;
  letter-spacing: -.01em;
  font-weight: 600;
  margin-bottom: 1.5rem;
  color: var(--c-text);
  max-width: 720px; margin-left: auto; margin-right: auto;
}
.hero__title em { font-style: italic; font-weight: 600; color: var(--c-gold-fg); }
.grad-text { background: var(--grad-primary); -webkit-background-clip: text; background-clip: text; color: transparent; }

.hero__subtitle { color: var(--c-text-dim); font-size: clamp(1rem, 2vw, 1.2rem); max-width: 640px; margin: 0 auto 2.5rem; }
.hero__subtitle strong { color: var(--c-text); }
.hero__cta { display: flex; gap: 1rem; justify-content: center; flex-wrap: wrap; margin-bottom: 3rem; }
.hero__stats { display: flex; gap: 2rem; justify-content: center; list-style: none; flex-wrap: wrap; }
.hero__stats li { display: flex; flex-direction: column; align-items: center; padding: 0 1.5rem; border-right: 1px solid var(--c-border); }
.hero__stats li:last-child { border-right: 0; }
.hero__stats strong { font-family: var(--font-display); font-size: 1.5rem; color: var(--c-gold-fg); line-height: 1; }
.hero__stats span { font-size: .85rem; color: var(--c-muted-fg); margin-top: .35rem; }

.hero__scroll { position: absolute; bottom: 2rem; left: 50%; transform: translateX(-50%); width: 26px; height: 42px; border: 2px solid var(--c-border-strong); border-radius: 20px; display: none; }
.hero__scroll span { position: absolute; top: 8px; left: 50%; transform: translateX(-50%); width: 4px; height: 8px; background: var(--c-gold); border-radius: 2px; animation: scrollDot 2s ease-in-out infinite; }
@keyframes scrollDot { 0%,100% { top: 8px; opacity: 1; } 50% { top: 24px; opacity: .3; } }
@media (min-width: 900px) { .hero__scroll { display: block; } }

/* Cards */
.cards { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 1.5rem; }
.card {
  position: relative; padding: 2rem;
  background: var(--c-surface);
  border: 1px solid var(--c-border);
  border-radius: var(--radius-lg);
  transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
  overflow: hidden;
}
.card::before {
  content: ''; position: absolute; inset: 0;
  background: var(--grad-primary);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
  z-index: 0;
  border-radius: inherit;
  padding: 1px;
  -webkit-mask: linear-gradient(#000 0 0) content-box, linear-gradient(#000 0 0);
  -webkit-mask-composite: xor; mask-composite: exclude;
  pointer-events: none;
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lg); }
.card:hover::before { opacity: 1; }
.card > * { position: relative; z-index: 1; }
.card--featured { background: linear-gradient(180deg, var(--c-surface) 0%, var(--c-surface-2) 100%); border-color: var(--c-gold); }
.card--cta { background: linear-gradient(135deg, color-mix(in oklab, var(--c-gold) 12%, var(--c-surface)) 0%, var(--c-surface-2) 100%); border-style: dashed; border-color: var(--c-gold); }
.card__badge { position: absolute; top: 1rem; right: 1rem; background: var(--grad-primary); color: #1a1a2e; padding: .3rem .75rem; border-radius: 999px; font-size: .75rem; font-weight: 700; z-index: 2; }
.card__icon { width: 56px; height: 56px; border-radius: var(--radius); background: color-mix(in oklab, var(--c-gold) 15%, transparent); display: inline-flex; align-items: center; justify-content: center; font-size: 1.75rem; margin-bottom: 1.25rem; }
.card h3 { font-family: var(--font-display); font-size: 1.4rem; margin-bottom: .5rem; }
.card p { color: var(--c-text-dim); font-size: .95rem; margin-bottom: 1.25rem; }
.card__link { display: inline-flex; align-items: center; gap: .4rem; font-weight: 600; color: var(--c-gold-fg); transition: gap var(--dur) var(--ease); }
.card__link:hover, .card__link:focus-visible { gap: .75rem; }

/* Eventos */
.events { display: grid; grid-template-columns: repeat(auto-fit, minmax(260px, 1fr)); gap: 1.5rem; }
.event { padding: 2rem; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-lg); transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease); text-align: center; }
.event:hover { transform: translateY(-4px); border-color: var(--c-gold); box-shadow: var(--shadow); }
.event__icon { width: 72px; height: 72px; border-radius: 50%; background: var(--grad-primary); color: #1a1a2e; display: inline-flex; align-items: center; justify-content: center; font-size: 2rem; margin: 0 auto 1.25rem; box-shadow: 0 8px 20px rgba(217,180,106,.25); }
.event h3 { font-family: var(--font-display); font-size: 1.35rem; margin-bottom: .5rem; }
.event p { color: var(--c-text-dim); font-size: .95rem; }
.event--cta { border-style: dashed; border-color: var(--c-gold); background: linear-gradient(135deg, color-mix(in oklab, var(--c-gold) 10%, var(--c-surface)) 0%, var(--c-surface-2) 100%); }
.event--cta .card__link { display: inline-flex; align-items: center; gap: .4rem; margin-top: 1rem; font-weight: 600; color: var(--c-gold-fg); }

/* Pasos */
.steps { list-style: none; display: grid; grid-template-columns: repeat(auto-fit, minmax(230px, 1fr)); gap: 1.75rem; }
.step { position: relative; padding: 2rem 1.5rem 1.5rem; background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-lg); transition: transform var(--dur) var(--ease), border-color var(--dur) var(--ease); }
.step:hover { transform: translateY(-3px); border-color: var(--c-gold); }
.step__num { position: absolute; top: -20px; left: 24px; width: 44px; height: 44px; border-radius: 50%; background: var(--grad-primary); color: #1a1a2e; display: inline-flex; align-items: center; justify-content: center; font-family: var(--font-display); font-weight: 700; font-size: 1.2rem; box-shadow: 0 6px 16px rgba(217,180,106,.35); }
.step h3 { font-family: var(--font-display); font-size: 1.15rem; margin: .75rem 0 .5rem; }
.step p { color: var(--c-text-dim); font-size: .95rem; }

/* FAQ */
.faq { display: flex; flex-direction: column; gap: .75rem; }
.faq__item { border: 1px solid var(--c-border); border-radius: var(--radius); background: var(--c-surface); overflow: hidden; transition: border-color var(--dur) var(--ease); }
.faq__item[open] { border-color: var(--c-gold); }
.faq__item summary { padding: 1.25rem 1.5rem; font-weight: 600; cursor: pointer; list-style: none; display: flex; justify-content: space-between; align-items: center; gap: 1rem; }
.faq__item summary::-webkit-details-marker { display: none; }
.faq__item summary::after { content: '+'; font-size: 1.5rem; color: var(--c-gold-fg); transition: transform var(--dur) var(--ease); }
.faq__item[open] summary::after { transform: rotate(45deg); }
.faq__item p { padding: 0 1.5rem 1.25rem; color: var(--c-text-dim); }

/* Formulario */
.form { background: var(--c-surface); border: 1px solid var(--c-border); border-radius: var(--radius-lg); padding: clamp(1.5rem, 4vw, 2.5rem); display: flex; flex-direction: column; gap: 1.25rem; }
.form__row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.25rem; }
@media (max-width: 640px) { .form__row { grid-template-columns: 1fr; } }

.form__group { display: flex; flex-direction: column; gap: .4rem; }
.form__group label { font-size: .85rem; font-weight: 600; color: var(--c-text-dim); }
.form__group input:not([type="checkbox"]),
.form__group textarea,
.form__group select {
  padding: .875rem 1rem;
  border-radius: var(--radius-sm);
  border: 1px solid var(--c-border-strong);
  background: var(--c-bg);
  color: var(--c-text);
  transition: border-color var(--dur) var(--ease), box-shadow var(--dur) var(--ease);
}
.form__group input:focus, .form__group textarea:focus, .form__group select:focus {
  outline: none;
  border-color: var(--c-gold);
  box-shadow: 0 0 0 4px color-mix(in oklab, var(--c-gold) 20%, transparent);
}
.form__group input[aria-invalid="true"],
.form__group select[aria-invalid="true"],
.form__group textarea[aria-invalid="true"] { border-color: var(--c-error-fg); }

.form__fieldset { border: 1px solid var(--c-border); padding: 1rem 1.25rem 1.25rem; border-radius: var(--radius); background: var(--c-bg); }
.form__fieldset legend { padding: 0 .5rem; font-size: .85rem; font-weight: 600; color: var(--c-text-dim); }
.form__checks { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: .5rem .75rem; margin-top: .5rem; }
.form__checks label { display: inline-flex; align-items: center; gap: .5rem; font-size: .9rem; font-weight: 400; color: var(--c-text); cursor: pointer; }
.form__checks input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--c-gold-fg); cursor: pointer; }

.form__group--check { flex-direction: row; align-items: flex-start; gap: .75rem; }
.form__group--check input { margin-top: .25rem; width: 18px; height: 18px; accent-color: var(--c-gold-fg); }
.form__group--check label { font-size: .9rem; font-weight: 400; color: var(--c-text-dim); }
.form__group--check a { color: var(--c-gold-fg); text-decoration: underline; }

.form__error { color: var(--c-error-fg); font-size: .8rem; min-height: 1em; }
.form__status { text-align: center; font-weight: 600; padding: .5rem; border-radius: var(--radius-sm); }
.form__status.is-success { color: var(--c-success-fg); }
.form__status.is-error { color: var(--c-error-fg); }

/* Footer */
.site-footer { background: var(--c-bg-alt); border-top: 1px solid var(--c-border); padding-top: 3.5rem; color: var(--c-text-dim); }
.footer__inner { display: grid; grid-template-columns: 2fr 1fr 1.5fr; gap: 2.5rem; padding-bottom: 2.5rem; border-bottom: 1px solid var(--c-border); }
@media (max-width: 800px) { .footer__inner { grid-template-columns: 1fr; } }
.footer__brand p { margin-top: 1rem; max-width: 340px; font-size: .95rem; }
.footer__logo img { height: 70px; width: auto; margin-bottom: 1rem; }
.site-footer h3 { font-family: var(--font-display); font-size: 1.1rem; color: var(--c-text); margin-bottom: 1rem; }
.footer__nav ul { list-style: none; display: flex; flex-direction: column; gap: .6rem; }
.footer__nav a, .footer__contact a { transition: color var(--dur) var(--ease); }
.footer__nav a:hover, .footer__contact a:hover { color: var(--c-gold-fg); }
.footer__contact address { font-style: normal; display: flex; flex-direction: column; gap: .5rem; font-size: .95rem; }
.social { list-style: none; display: flex; gap: .75rem; margin-top: 1rem; }
.social a { display: inline-flex; align-items: center; justify-content: center; width: 40px; height: 40px; border-radius: 50%; border: 1px solid var(--c-border-strong); font-size: .75rem; font-weight: 700; letter-spacing: .05em; transition: transform var(--dur) var(--ease), background var(--dur) var(--ease), color var(--dur) var(--ease); }
.social a:hover, .social a:focus-visible { background: var(--grad-primary); color: #1a1a2e; transform: translateY(-2px); }
.footer__bottom { display: flex; justify-content: space-between; flex-wrap: wrap; gap: 1rem; padding: 1.5rem 0; font-size: .85rem; color: var(--c-muted-fg); }
.footer__bottom a:hover { color: var(--c-gold-fg); }

/* Floating buttons */
.whatsapp-fab { position: fixed; bottom: 1.5rem; right: 1.5rem; display: inline-flex; align-items: center; gap: .5rem; padding: .875rem 1.25rem; background: #25D366; color: #fff; border-radius: 999px; font-weight: 600; box-shadow: 0 8px 24px rgba(37,211,102,.4); z-index: 90; transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease); }
.whatsapp-fab:hover, .whatsapp-fab:focus-visible { transform: translateY(-3px) scale(1.03); box-shadow: 0 12px 32px rgba(37,211,102,.55); }
@media (max-width: 480px) { .whatsapp-fab span { display: none; } .whatsapp-fab { padding: 1rem; } }

.back-to-top { position: fixed; bottom: 1.5rem; left: 1.5rem; width: 44px; height: 44px; border-radius: 50%; background: var(--c-surface); border: 1px solid var(--c-border-strong); color: var(--c-text); z-index: 90; display: inline-flex; align-items: center; justify-content: center; box-shadow: var(--shadow); transition: transform var(--dur) var(--ease), background var(--dur) var(--ease); }
.back-to-top:hover { background: var(--grad-primary); color: #1a1a2e; transform: translateY(-3px); }
.back-to-top[hidden] { display: none; }

/* Reveal animations */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 600ms var(--ease), transform 600ms var(--ease); }
.reveal.is-visible { opacity: 1; transform: translateY(0); }

@media print {
  .site-header, .whatsapp-fab, .back-to-top, .hero__glow, .hero__scroll { display: none !important; }
  body { background: #fff; color: #000; }
}