/**
 * IDEM — Instituto de Especialidades Médicas
 * Base Styles, Reset, Typography & Paper Texture
 */

@import url('https://fonts.googleapis.com/css2?family=Plus+Jakarta+Sans:ital,wght@0,400;0,500;0,600;0,700;0,800;1,600&family=Outfit:wght@400;500;600;700&display=swap');
@import url('./tokens.css');

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  color: var(--color-brand-dark);
  background-color: var(--color-bg-cream);
  background-image: url('../assets/images/paper-grain.svg');
  background-repeat: repeat;
  line-height: 1.6;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  overflow-x: hidden;
  font-variant-numeric: lining-nums proportional-nums;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

/* Browser Surfaces (craft-floor) */
::selection {
  background-color: #E6D8F8;
  color: var(--color-brand-dark);
}

:focus-visible {
  outline: 2px solid var(--color-brand-primary);
  outline-offset: 3px;
}

::-webkit-scrollbar {
  width: 10px;
}

::-webkit-scrollbar-track {
  background: var(--color-bg-cream-alt);
}

::-webkit-scrollbar-thumb {
  background: var(--color-brand-border);
  border-radius: var(--radius-pill);
  border: 2px solid var(--color-bg-cream-alt);
}

::-webkit-scrollbar-thumb:hover {
  background: var(--color-brand-primary);
}

/* Tipografía Oficial: Títulos Sans con personalidad, fuerte jerarquía */
h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-display);
  color: var(--color-brand-dark);
  font-weight: 700;
  line-height: 1.18;
  letter-spacing: -0.022em;
}

.font-serif,
.logo-title {
  font-family: var(--font-display);
  letter-spacing: -0.02em;
  font-weight: 700;
}

.hero-title {
  font-family: var(--font-display);
  font-size: clamp(2.3rem, 4.8vw, 3.6rem);
  font-weight: 800;
  color: var(--color-brand-dark);
  margin-bottom: var(--space-md);
  letter-spacing: -0.03em;
  line-height: 1.12;
}

.hero-title span.highlight {
  color: var(--color-brand-primary);
}

.section-title {
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 3.2vw, 2.5rem);
  font-weight: 800;
  color: var(--color-brand-dark);
  margin-bottom: var(--space-sm);
  letter-spacing: -0.025em;
  line-height: 1.2;
}

.section-title.centered {
  text-align: center;
}

.section-subtitle {
  font-size: 1.1rem;
  color: var(--color-brand-muted);
  max-width: 65ch;
  margin-bottom: var(--space-xl);
  line-height: 1.55;
}

.section-subtitle.centered {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

p {
  max-width: 70ch;
  color: #382B48;
  font-size: 1.025rem;
  line-height: 1.65;
}

p.lead {
  font-size: 1.2rem;
  line-height: 1.65;
  color: #3E3250;
}

a {
  color: var(--color-brand-primary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-brand-primary-hover);
}

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

/* Contenedor Principal */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-left: auto;
  margin-right: auto;
  padding-left: var(--space-lg);
  padding-right: var(--space-lg);
}

/* Secciones Alternadas */
.section {
  padding-top: var(--space-3xl);
  padding-bottom: var(--space-3xl);
  position: relative;
}

.section-cream {
  background-color: var(--color-bg-cream);
}

.section-lavender {
  background-color: var(--color-bg-lavender);
  border-top: 1px solid var(--color-border-subtle);
  border-bottom: 1px solid var(--color-border-subtle);
}

.section-white {
  background-color: var(--color-bg-white);
  border-top: 1px solid var(--color-border-cream);
  border-bottom: 1px solid var(--color-border-cream);
}

/* Utilidades de Texto */
.text-center { text-align: center; }
.text-violet { color: var(--color-brand-primary); }
.text-blue { color: var(--color-accent-blue); }
.text-muted { color: var(--color-brand-muted); }
.italic { font-style: italic; }

/* Accesibilidad: Skip to content */
.skip-link {
  position: absolute;
  top: -60px;
  left: 16px;
  background: var(--color-brand-primary);
  color: #FFFFFF;
  padding: 12px 20px;
  border-radius: var(--radius-sm);
  z-index: 1000;
  font-weight: 600;
  text-decoration: none;
  box-shadow: var(--shadow-md);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: 16px;
  color: #FFFFFF;
}

/* Accesibilidad: Reducción intencional de movimiento */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *, *::before, *::after {
    animation-duration: 0.08s !important;
    transition-duration: 0.08s !important;
    transform: none !important;
  }
}