/* ==========================================================================
   OMI DENTAL — Base
   Variables, reset y tipografia. Mismo sistema de diseno que ON STRATEGY PRO,
   adaptado a la marca OMI Dental.
   ========================================================================== */

:root {
  /* Paleta */
  --ivory-deep: #f1ecdf;
  --ink: #16130e;
  --ink-soft: #57503f;
  --gold: #b3875a;
  --gold-soft: #cfa87d;
  --porcelain: #e9e2d2;

  /* Marca (mapeados a la paleta de arriba) */
  --c-yellow: var(--gold);
  --c-yellow-dark: #98734d;
  --c-yellow-soft: rgba(207, 168, 125, 0.14);

  /* Neutros (mapeados a la paleta de arriba) */
  --c-black: var(--ink);
  --c-black-soft: #211e19;
  --c-black-card: #282520;
  --c-cream: var(--ivory-deep);
  --c-cream-deep: var(--porcelain);
  --c-white: #ffffff;
  --c-grey: var(--ink-soft);
  --c-grey-light: #c4c4c4;
  --c-line: rgba(22, 19, 14, 0.12);
  --c-line-dark: rgba(255, 255, 255, 0.14);

  /* Whatsapp (unico color ajeno al sistema, uso funcional) */
  --c-whatsapp: #25d366;

  /* Tokens semanticos (tema claro por defecto) */
  --bg: var(--c-cream);
  --fg: var(--c-black);
  --fg-muted: var(--c-grey);
  --line: var(--c-line);

  /* Tipografia */
  --font-display: "Clash Display", "Archivo", system-ui, sans-serif;
  --font-body: "Satoshi", "Inter", system-ui, -apple-system, sans-serif;
  --font-serif: "Instrument Serif", Georgia, serif;

  /* Escala fluida */
  --fs-eyebrow: 0.6875rem;
  --fs-small: 0.8125rem;
  --fs-body: clamp(0.9375rem, 0.9rem + 0.2vw, 1.0625rem);
  --fs-lead: clamp(1.0625rem, 1rem + 0.4vw, 1.375rem);
  --fs-h3: clamp(1.25rem, 1.05rem + 0.9vw, 1.75rem);
  --fs-h2: clamp(2.25rem, 1.4rem + 4vw, 5rem);
  --fs-h1: clamp(3rem, 1rem + 10.5vw, 10rem);
  --fs-stat: clamp(3rem, 1.8rem + 5.5vw, 6rem);

  /* Ritmo */
  --shell: 1320px;
  --gutter: clamp(1.25rem, 4vw, 3.5rem);
  --section-y: clamp(4.5rem, 9vw, 9rem);
  --radius-sm: 10px;
  --radius: 16px;
  --radius-lg: 24px;
  --radius-xl: 32px;

  /* Sombras */
  --shadow-sm: 0 1px 2px rgba(17, 17, 17, 0.04), 0 4px 12px rgba(17, 17, 17, 0.04);
  --shadow-md: 0 8px 24px rgba(17, 17, 17, 0.07), 0 2px 6px rgba(17, 17, 17, 0.04);
  --shadow-lg: 0 24px 60px rgba(17, 17, 17, 0.12);
  --shadow-yellow: 0 18px 50px rgba(179, 135, 90, 0.28);

  /* Movimiento */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --t-fast: 0.24s;
  --t-base: 0.4s;
  --t-slow: 0.7s;

  --header-h: 74px;
  --z-header: 800;
  --z-overlay: 900;
  --z-cursor: 1000;
  --z-loader: 1100;
}

/* Bloques con fondo oscuro */
.is-dark {
  --bg: var(--c-black);
  --fg: var(--c-white);
  --fg-muted: var(--c-grey-light);
  --line: var(--c-line-dark);
  background-color: var(--bg);
  color: var(--fg);
}

/* --------------------------------------------------------------------------
   Reset
   -------------------------------------------------------------------------- */

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

* {
  margin: 0;
  padding: 0;
}

html {
  -webkit-text-size-adjust: 100%;
  scroll-behavior: auto;
}

body {
  min-height: 100vh;
  background-color: var(--c-cream);
  color: var(--c-black);
  font-family: var(--font-body);
  font-size: var(--fs-body);
  line-height: 1.65;
  font-weight: 400;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  overflow-x: hidden;
}

body.is-locked {
  overflow: hidden;
}

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

button,
input,
select,
textarea {
  font: inherit;
  color: inherit;
  background: none;
  border: none;
}

button {
  cursor: pointer;
}

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

ul,
ol {
  list-style: none;
}

::selection {
  background: var(--c-yellow);
  color: var(--c-black);
}

:focus-visible {
  outline: 2px solid var(--c-yellow);
  outline-offset: 3px;
  border-radius: 4px;
}

/* --------------------------------------------------------------------------
   Tipografia
   -------------------------------------------------------------------------- */

h1,
h2,
h3,
h4 {
  font-family: var(--font-display);
  font-weight: 700;
  line-height: 0.94;
  letter-spacing: -0.015em;
  word-spacing: 0.08em;
  text-transform: uppercase;
  text-wrap: balance;
  /* Palabras largas (p.ej. "TRANSFORMACIONES") no deben desbordar su columna */
  overflow-wrap: break-word;
  hyphens: auto;
}

h1 {
  font-size: var(--fs-h1);
}

h2 {
  font-size: var(--fs-h2);
}

h3 {
  font-size: var(--fs-h3);
  line-height: 1.12;
  letter-spacing: 0.01em;
  word-spacing: 0.06em;
  text-transform: none;
}

p {
  text-wrap: pretty;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.9rem;
  font-family: var(--font-body);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: var(--fg-muted);
  --eyebrow-scale: 1;
}

.eyebrow::before {
  content: "";
  width: 34px;
  height: 1px;
  background: currentColor;
  opacity: 0.55;
  transform: scaleX(var(--eyebrow-scale));
  transform-origin: left center;
}

.eyebrow--yellow {
  color: var(--c-yellow);
}

.lead {
  font-size: var(--fs-lead);
  line-height: 1.55;
  color: var(--fg-muted);
  max-width: 46ch;
}

.accent {
  color: var(--c-yellow);
}

.accent-serif {
  font-family: var(--font-serif);
  font-style: italic;
  font-weight: 400;
  color: var(--c-yellow);
  text-transform: none;
  letter-spacing: -0.01em;
}

/* --------------------------------------------------------------------------
   Layout
   -------------------------------------------------------------------------- */

.shell {
  width: 100%;
  max-width: var(--shell);
  margin-inline: auto;
  padding-inline: var(--gutter);
}

.section {
  position: relative;
  padding-block: var(--section-y);
  background-color: var(--bg);
  color: var(--fg);
}

.section__head {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(0, 0.62fr);
  gap: clamp(1.25rem, 3vw, 4rem);
  align-items: end;
  margin-bottom: clamp(2.5rem, 5vw, 4.5rem);
}

.section__head--stack {
  grid-template-columns: minmax(0, 1fr);
  align-items: start;
}

.section__head--stack .lead {
  margin-top: clamp(0.9rem, 1.6vw, 1.4rem);
}

.section__head .section__title {
  margin-top: 1.1rem;
  letter-spacing: -0.01em;
  word-spacing: 0.1em;
}

.is-dark .section__title {
  letter-spacing: 0;
  word-spacing: 0.12em;
}

.grid-3 {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: clamp(1rem, 1.8vw, 1.75rem);
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(1rem, 1.8vw, 1.75rem);
}

.rule {
  height: 1px;
  background: var(--line);
  border: 0;
}

.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;
}

.skip-link {
  position: fixed;
  top: 0.75rem;
  left: 0.75rem;
  z-index: calc(var(--z-loader) + 10);
  padding: 0.7rem 1.1rem;
  border-radius: var(--radius-sm);
  background: var(--c-black);
  color: var(--c-white);
  font-size: var(--fs-small);
  font-weight: 600;
  transform: translateY(-160%);
  transition: transform var(--t-fast) var(--ease-out);
}

.skip-link:focus-visible {
  transform: translateY(0);
}

/* --------------------------------------------------------------------------
   Textura de grano compartida
   -------------------------------------------------------------------------- */

.grain::after {
  content: "";
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  opacity: 0.38;
  mix-blend-mode: multiply;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='140' height='140'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.85' numOctaves='3'/%3E%3C/filter%3E%3Crect width='140' height='140' filter='url(%23n)' opacity='0.42'/%3E%3C/svg%3E");
}

/* --------------------------------------------------------------------------
   Estados iniciales de animacion (JS los libera)
   -------------------------------------------------------------------------- */

.js-fade,
.js-stagger > *,
[data-cards] > * {
  opacity: 0;
  transform: translate3d(0, 26px, 0);
}

.js-clip {
  clip-path: inset(100% 0 0 0);
}

h2.js-clip,
.section__title.js-clip {
  padding-bottom: 0.1em;
  margin-bottom: -0.1em;
}

.no-motion .js-fade,
.no-motion .js-stagger > *,
.no-motion [data-cards] > *,
.no-js .js-fade,
.no-js .js-stagger > *,
.no-js [data-cards] > * {
  opacity: 1;
  transform: none;
}

.no-motion .js-clip,
.no-js .js-clip {
  clip-path: none;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }

  .js-fade,
  .js-stagger > *,
  [data-cards] > * {
    opacity: 1;
    transform: none;
  }

  .js-clip {
    clip-path: none;
  }
}