/* ==========================================================================
   Tokens de diseño — Dr. Juan Jesús García Fiscal
   Paleta derivada del logo institucional de GAFI MEDICAL.
   ========================================================================== */

:root {
  /* --- Color de marca --- */
  --navy-900: #071A33;
  --navy-800: #0B2444;
  --navy-700: #0F2C52;   /* azul del logo */
  --navy-600: #16406F;
  --navy-500: #1E568F;

  --cyan-600: #1E93C4;
  --cyan-500: #35B4E3;   /* cian del logo */
  --cyan-400: #62C8EB;
  --cyan-300: #9BDDF3;
  --cyan-100: #E3F4FC;

  /* Acento cálido, reservado a la línea estética (bótox y verrugas) */
  --teal-500: #17A398;
  --teal-100: #DFF4F2;

  /* --- Neutros --- */
  --white: #FFFFFF;
  --sand-50: #FBFCFE;
  --sand-100: #F3F6FB;
  --sand-200: #E7ECF4;
  --sand-300: #D3DBE8;
  --slate-500: #5D6B82;
  --slate-600: #46536A;
  --slate-700: #334054;

  /* --- Roles semánticos --- */
  --bg: var(--white);
  --bg-alt: var(--sand-100);
  --bg-deep: var(--navy-700);
  --surface: var(--white);
  --border: var(--sand-200);
  --border-strong: var(--sand-300);

  --text: #14243D;
  --text-muted: #55637A;
  --text-invert: #FFFFFF;
  --text-invert-muted: #C3D4E8;

  --brand: var(--navy-700);
  --brand-accent: var(--cyan-500);
  --focus: var(--cyan-600);

  /* WhatsApp, color oficial de la marca */
  --whatsapp: #25D366;
  --whatsapp-dark: #128C7E;

  /* --- Tipografía --- */
  --font-display: "Sora", ui-sans-serif, system-ui, -apple-system, "Segoe UI", sans-serif;
  --font-body: "Inter", ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;

  /* Escala fluida: se adapta entre 360 px y 1440 px sin saltos */
  --step--1: clamp(0.84rem, 0.80rem + 0.18vw, 0.94rem);
  --step-0:  clamp(1.00rem, 0.95rem + 0.22vw, 1.13rem);
  --step-1:  clamp(1.20rem, 1.11rem + 0.40vw, 1.45rem);
  --step-2:  clamp(1.44rem, 1.29rem + 0.68vw, 1.86rem);
  --step-3:  clamp(1.73rem, 1.49rem + 1.07vw, 2.38rem);
  --step-4:  clamp(2.07rem, 1.71rem + 1.62vw, 3.05rem);
  --step-5:  clamp(2.49rem, 1.94rem + 2.42vw, 3.91rem);
  --step-6:  clamp(2.99rem, 2.17rem + 3.55vw, 5.00rem);

  --leading-tight: 1.08;
  --leading-snug: 1.28;
  --leading-normal: 1.68;

  /* --- Espaciado --- */
  --space-2xs: 0.375rem;
  --space-xs: 0.625rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.25rem;
  --space-xl: 3.5rem;
  --space-2xl: clamp(3.5rem, 2rem + 6vw, 6.5rem);
  --space-3xl: clamp(5rem, 3rem + 8vw, 9rem);

  /* --- Contenedores --- */
  --container: 1200px;
  --container-narrow: 760px;
  --gutter: clamp(1.15rem, 0.6rem + 2.4vw, 2.5rem);

  /* --- Formas --- */
  --radius-sm: 8px;
  --radius-md: 14px;
  --radius-lg: 22px;
  --radius-xl: 32px;
  --radius-pill: 999px;

  /* --- Sombras: azuladas, para que no ensucien el blanco --- */
  --shadow-xs: 0 1px 2px rgba(15, 44, 82, 0.06);
  --shadow-sm: 0 2px 8px rgba(15, 44, 82, 0.07);
  --shadow-md: 0 12px 28px -12px rgba(15, 44, 82, 0.20);
  --shadow-lg: 0 28px 60px -28px rgba(15, 44, 82, 0.32);
  --shadow-glow: 0 20px 50px -20px rgba(53, 180, 227, 0.55);

  /* --- Movimiento --- */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --ease-in-out: cubic-bezier(0.65, 0, 0.35, 1);
  --ease-spring: cubic-bezier(0.34, 1.56, 0.64, 1);
  --dur-fast: 160ms;
  --dur: 320ms;
  --dur-slow: 620ms;
  --dur-reveal: 900ms;

  /* --- Capas --- */
  --z-header: 100;
  --z-float: 90;
  --z-modal: 200;
}

/* El sitio se diseñó para fondo claro; respetamos el esquema del sistema
   sin invertir la identidad médica, que gana legibilidad en claro. */
:root {
  color-scheme: light;
}