/* ==========================================================================
   Espacio Calma · global.css
   Tokens + reset. Todo en rem (1rem = 16px).
   ========================================================================== */

:root {
  /* --- Color (semánticos) --- */
  /* Fuente: DESIGN.md "Serene Sanctuary" */
  --color-ink: #2c3539;            /* títulos */
  --color-ink-soft: #3e4a4f;       /* cuerpo */
  --color-primary: #4e7a66;        /* sage deep: botones, acentos */
  --color-primary-hover: #3f6453;
  --color-primary-strong: #35614e; /* texto de acento sobre claro (>= 6:1) */
  --color-on-primary: #ffffff;
  --color-primary-tint: #a8c5b5;
  --color-secondary: #6d5b8b;      /* lavanda */
  --color-secondary-tint: #c9b8e0;
  --color-tertiary: #d48c70;       /* terracota */
  --color-tertiary-tint: #f6d5c4;
  --color-canvas: #fbf7f2;         /* lino cálido */
  --color-surface: #ffffff;
  --color-border-warm: #eae3d9;
  --color-glass: rgb(255 255 255 / 0.72);        /* nav: >= 6:1 incluso sobre negro */
  --color-glass-strong: rgb(255 255 255 / 0.78); /* paneles de texto: >= 7:1 */
  --color-border: rgb(255 255 255 / 0.6);
  --color-sky-top: #cfe3ec;        /* cielo de respaldo si no hay foto */
  --color-sky-mid: #e3f0f6;
  --color-sky-low: #f2fbff;
  --color-ring: #35614e;           /* foco sólido (>= 3:1) */

  /* --- Tipografía --- */
  --font-serif: "Literata", Georgia, "Times New Roman", serif;
  --font-sans: "Plus Jakarta Sans", system-ui, -apple-system, "Segoe UI", sans-serif;

  /* Escala tipográfica --fs-* (valores del DESIGN.md en rem) */
  --fs-xs: 0.8125rem;                              /* body-sm 13 */
  --fs-sm: 0.9375rem;                              /* body-md 15 */
  --fs-base: 1rem;                                 /* title-md 16 */
  --fs-md: 1.0625rem;                              /* body-lg 17 */
  --fs-lg: clamp(1.75rem, 1.4rem + 1.1vw, 2.25rem);      /* headline-lg 28–36 */
  --fs-xl: clamp(2.125rem, 1.7rem + 1.4vw, 3rem);        /* display 34–48 */
  --fs-hero: clamp(2.375rem, 1.5rem + 4.4vw, 4.5rem);    /* display ampliado para el hero 38–72 */

  --lh-tight: 1.1;
  --lh-snug: 1.25;
  --lh-body: 1.65;

  /* --- Espaciado (ritmo 4/8) --- */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4rem;

  /* --- Radios, sombras, movimiento --- */
  --radius-md: 1.5rem;
  --radius-lg: 2rem;
  --radius-pill: 62.4375rem;
  --shadow-soft: 0 0.75rem 2.25rem -0.375rem rgb(44 53 57 / 0.1), inset 0 0.0625rem 0 rgb(255 255 255 / 0.8);
  --shadow-card: 0 0.5rem 1.875rem -0.25rem rgb(78 122 102 / 0.12);
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --dur-fast: 180ms;
  --dur-base: 280ms;
  --dur-slow: 700ms;

  /* --- Capas --- */
  --z-nav: 100;
  --nav-h: 3.75rem;                 /* alto del menú fijo (8px + 44px + 8px de relleno, con margen) */
  --z-hero-content: 10;

  --container: 80rem;
  --gutter: clamp(1rem, 0.5rem + 2.5vw, 2.5rem);
}

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

html {
  /* El menú es fijo: al saltar a un ancla o enfocar con teclado, el destino queda debajo de él */
  scroll-padding-top: calc(var(--nav-h) + var(--space-6));
  scroll-padding-bottom: 6rem;                    /* el botón flotante de WhatsApp tampoco tapa el elemento enfocado */
  -webkit-text-size-adjust: 100%;
  text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: var(--fs-base);
  line-height: var(--lh-body);
  color: var(--color-ink);
  background: var(--color-canvas);
  -webkit-font-smoothing: antialiased;
}

h1, h2, h3, p {
  margin: 0;
}

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

button {
  font: inherit;
  color: inherit;
  cursor: pointer;
}

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

/* Foco visible, siempre */
:focus-visible {
  outline: 0.1875rem solid var(--color-ring);
  outline-offset: 0.1875rem;
  border-radius: 0.25rem;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -4rem;
  z-index: 1000;
  padding: var(--space-3) var(--space-5);
  background: var(--color-primary);
  color: var(--color-on-primary);
  border-radius: var(--radius-pill);
  transition: top var(--dur-fast) var(--ease-out);
}
.skip-link:focus {
  top: var(--space-4);
}

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

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}