/* ============================================
   UBYMED DESIGN SYSTEM v2.0
   Propuesta de rediseño — Marzo 2026
   ============================================

   Brand actual extraído de ubymed.com
   + nueva propuesta evolutiva

   Concepto: "Clínico Moderno"
   - Profesional y confiable
   - Moderno sin ser frío
   - Accesible y limpio
   ============================================ */

/* --- Google Fonts Import --- */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700&family=Plus+Jakarta+Sans:wght@600;700;800&display=swap');

/* ============================================
   1. DESIGN TOKENS (CSS Custom Properties)
   ============================================ */
:root {

  /* --- COLORES: Primarios (basados en brand actual #046BD2) --- */
  --color-primary-50:  #EFF6FF;
  --color-primary-100: #DBEAFE;
  --color-primary-200: #BFDBFE;
  --color-primary-300: #93C5FD;
  --color-primary-400: #60A5FA;
  --color-primary-500: #046BD2;   /* ← Color original Ubymed */
  --color-primary-600: #045CB4;   /* ← Secundario original */
  --color-primary-700: #1D4ED8;
  --color-primary-800: #1E3A8A;
  --color-primary-900: #172554;

  /* --- COLORES: Acento (verde salud — confianza médica) --- */
  --color-accent-50:  #ECFDF5;
  --color-accent-100: #D1FAE5;
  --color-accent-200: #A7F3D0;
  --color-accent-300: #6EE7B7;
  --color-accent-400: #34D399;
  --color-accent-500: #10B981;
  --color-accent-600: #059669;
  --color-accent-700: #047857;
  --color-accent-800: #065F46;
  --color-accent-900: #064E3B;

  /* --- COLORES: Neutros --- */
  --color-neutral-50:  #F8FAFC;
  --color-neutral-100: #F1F5F9;
  --color-neutral-200: #E2E8F0;
  --color-neutral-300: #CBD5E1;
  --color-neutral-400: #94A3B8;
  --color-neutral-500: #64748B;
  --color-neutral-600: #475569;
  --color-neutral-700: #334155;   /* ← Gray original */
  --color-neutral-800: #1E293B;   /* ← Dark slate original */
  --color-neutral-900: #0F172A;

  /* --- COLORES: Semánticos --- */
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-error:   #EF4444;
  --color-info:    #3B82F6;

  /* --- COLORES: Superficies --- */
  --surface-page:     #F8FAFC;
  --surface-card:     #FFFFFF;
  --surface-elevated: #FFFFFF;
  --surface-hero:     linear-gradient(135deg, #046BD2 0%, #0284C7 50%, #0EA5E9 100%);
  --surface-footer:   #0F172A;
  --surface-overlay:  rgba(15, 23, 42, 0.6);

  /* --- TIPOGRAFÍA --- */
  --font-display: 'Plus Jakarta Sans', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-body:    'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;

  /* Escala tipográfica */
  --text-display-xl: 800 4rem/1.1 var(--font-display);
  --text-display-lg: 700 3rem/1.15 var(--font-display);
  --text-display-md: 700 2.25rem/1.2 var(--font-display);
  --text-heading-lg: 700 1.875rem/1.3 var(--font-display);
  --text-heading-md: 600 1.5rem/1.3 var(--font-display);
  --text-heading-sm: 600 1.25rem/1.4 var(--font-display);
  --text-body-lg:    400 1.125rem/1.7 var(--font-body);
  --text-body-md:    400 1rem/1.65 var(--font-body);
  --text-body-sm:    400 0.875rem/1.6 var(--font-body);
  --text-caption:    500 0.75rem/1.5 var(--font-body);

  /* --- SPACING (escala 4px) --- */
  --space-0:  0;
  --space-1:  0.25rem;   /* 4px */
  --space-2:  0.5rem;    /* 8px */
  --space-3:  0.75rem;   /* 12px */
  --space-4:  1rem;      /* 16px */
  --space-5:  1.25rem;   /* 20px */
  --space-6:  1.5rem;    /* 24px */
  --space-8:  2rem;      /* 32px */
  --space-10: 2.5rem;    /* 40px */
  --space-12: 3rem;      /* 48px */
  --space-16: 4rem;      /* 64px */
  --space-20: 5rem;      /* 80px */
  --space-24: 6rem;      /* 96px */
  --space-32: 8rem;      /* 128px */

  /* --- BORDES --- */
  --radius-sm:   0.375rem;  /* 6px */
  --radius-md:   0.5rem;    /* 8px */
  --radius-lg:   0.75rem;   /* 12px */
  --radius-xl:   1rem;      /* 16px */
  --radius-2xl:  1.5rem;    /* 24px */
  --radius-full: 9999px;

  /* --- SOMBRAS --- */
  --shadow-xs:   0 1px 2px 0 rgba(0,0,0,0.05);
  --shadow-sm:   0 1px 3px 0 rgba(0,0,0,0.1), 0 1px 2px -1px rgba(0,0,0,0.1);
  --shadow-md:   0 4px 6px -1px rgba(0,0,0,0.1), 0 2px 4px -2px rgba(0,0,0,0.1);
  --shadow-lg:   0 10px 15px -3px rgba(0,0,0,0.1), 0 4px 6px -4px rgba(0,0,0,0.1);
  --shadow-xl:   0 20px 25px -5px rgba(0,0,0,0.1), 0 8px 10px -6px rgba(0,0,0,0.1);
  --shadow-card: 0 1px 3px rgba(0,0,0,0.08), 0 4px 12px rgba(0,0,0,0.04);
  --shadow-card-hover: 0 4px 12px rgba(0,0,0,0.12), 0 8px 24px rgba(0,0,0,0.06);

  /* --- TRANSICIONES --- */
  --transition-fast:   150ms ease;
  --transition-normal: 250ms ease;
  --transition-slow:   350ms ease;
  --transition-spring: 500ms cubic-bezier(0.34, 1.56, 0.64, 1);

  /* --- LAYOUT --- */
  --container-max:    1200px;
  --container-narrow: 720px;
  --container-wide:   1400px;
}


/* ============================================
   2. BASE RESET & DEFAULTS
   ============================================ */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font: var(--text-body-md);
  color: var(--color-neutral-700);
  background-color: var(--surface-page);
}

h1, h2, h3, h4, h5, h6 {
  color: var(--color-neutral-900);
  letter-spacing: -0.01em;
}

a {
  color: var(--color-primary-500);
  text-decoration: none;
  transition: color var(--transition-fast);
}
a:hover {
  color: var(--color-primary-700);
}

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


/* ============================================
   3. LAYOUT UTILITIES
   ============================================ */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--space-6);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.container--wide {
  max-width: var(--container-wide);
}

.section {
  padding-block: var(--space-20);
}

.section--sm {
  padding-block: var(--space-12);
}

.section--lg {
  padding-block: var(--space-32);
}

.grid {
  display: grid;
  gap: var(--space-8);
}

.grid--2 { grid-template-columns: repeat(2, 1fr); }
.grid--3 { grid-template-columns: repeat(3, 1fr); }
.grid--4 { grid-template-columns: repeat(4, 1fr); }

@media (max-width: 768px) {
  .grid--2,
  .grid--3,
  .grid--4 {
    grid-template-columns: 1fr;
  }
}


/* ============================================
   4. COMPONENT STYLES
   ============================================ */

/* --- Buttons --- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font: 600 1rem/1.5 var(--font-body);
  border: 2px solid transparent;
  border-radius: var(--radius-lg);
  cursor: pointer;
  transition: all var(--transition-normal);
  text-decoration: none;
}

.btn--primary {
  background: var(--color-primary-500);
  color: white;
  box-shadow: 0 2px 8px rgba(4, 107, 210, 0.3);
}
.btn--primary:hover {
  background: var(--color-primary-600);
  box-shadow: 0 4px 16px rgba(4, 107, 210, 0.4);
  transform: translateY(-1px);
  color: white;
}

.btn--secondary {
  background: white;
  color: var(--color-primary-500);
  border-color: var(--color-primary-200);
}
.btn--secondary:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary-500);
  color: var(--color-primary-600);
}

.btn--accent {
  background: var(--color-accent-500);
  color: white;
}
.btn--accent:hover {
  background: var(--color-accent-600);
  transform: translateY(-1px);
  color: white;
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: 1.125rem;
  border-radius: var(--radius-xl);
}

.btn--ghost {
  background: transparent;
  color: white;
  border-color: rgba(255,255,255,0.3);
}
.btn--ghost:hover {
  background: rgba(255,255,255,0.1);
  border-color: rgba(255,255,255,0.6);
  color: white;
}


/* --- Cards --- */
.card {
  background: var(--surface-card);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-card);
  transition: all var(--transition-normal);
  border: 1px solid var(--color-neutral-100);
}

.card:hover {
  box-shadow: var(--shadow-card-hover);
  transform: translateY(-2px);
}

.card__icon {
  width: 56px;
  height: 56px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  margin-bottom: var(--space-5);
}

.card__icon--primary {
  background: var(--color-primary-50);
  color: var(--color-primary-500);
}

.card__icon--accent {
  background: var(--color-accent-50);
  color: var(--color-accent-600);
}

.card__title {
  font: var(--text-heading-sm);
  color: var(--color-neutral-900);
  margin-bottom: var(--space-3);
}

.card__text {
  font: var(--text-body-md);
  color: var(--color-neutral-500);
}


/* --- Badge / Pill --- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  font: var(--text-caption);
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  background: var(--color-primary-50);
  color: var(--color-primary-600);
  border: 1px solid var(--color-primary-100);
}


/* --- Trust Bar --- */
.trust-bar {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: var(--space-8);
  padding: var(--space-8) var(--space-6);
  background: white;
  border-block: 1px solid var(--color-neutral-100);
}

.trust-bar__item {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  font: 600 0.9375rem/1.4 var(--font-body);
  color: var(--color-neutral-700);
}

.trust-bar__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: var(--color-accent-50);
  color: var(--color-accent-600);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
}


/* --- Steps --- */
.steps {
  display: flex;
  gap: var(--space-8);
  counter-reset: step;
}

.step {
  flex: 1;
  text-align: center;
  position: relative;
  counter-increment: step;
}

.step::before {
  content: counter(step);
  display: flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  margin: 0 auto var(--space-5);
  background: var(--color-primary-500);
  color: white;
  border-radius: var(--radius-full);
  font: 700 1.25rem/1 var(--font-display);
}

.step__title {
  font: var(--text-heading-sm);
  margin-bottom: var(--space-2);
}

.step__text {
  font: var(--text-body-sm);
  color: var(--color-neutral-500);
}

@media (max-width: 768px) {
  .steps {
    flex-direction: column;
    gap: var(--space-6);
  }
}


/* --- Testimonial --- */
.testimonial {
  background: white;
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  box-shadow: var(--shadow-card);
  border: 1px solid var(--color-neutral-100);
}

.testimonial__stars {
  color: #F59E0B;
  font-size: 1.25rem;
  margin-bottom: var(--space-4);
}

.testimonial__text {
  font: 400 1.0625rem/1.7 var(--font-body);
  color: var(--color-neutral-700);
  font-style: italic;
  margin-bottom: var(--space-5);
}

.testimonial__author {
  font: 600 0.9375rem/1.4 var(--font-body);
  color: var(--color-neutral-900);
}

.testimonial__role {
  font: var(--text-body-sm);
  color: var(--color-neutral-400);
}


/* --- FAQ Accordion --- */
.faq-item {
  border-bottom: 1px solid var(--color-neutral-200);
  padding-block: var(--space-5);
}

.faq-item__question {
  font: var(--text-heading-sm);
  color: var(--color-neutral-800);
  cursor: pointer;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.faq-item__answer {
  font: var(--text-body-md);
  color: var(--color-neutral-600);
  padding-top: var(--space-3);
  display: none;
}

.faq-item.active .faq-item__answer {
  display: block;
}


/* --- Section Header --- */
.section-header {
  text-align: center;
  max-width: 640px;
  margin-inline: auto;
  margin-bottom: var(--space-12);
}

.section-header__overline {
  display: inline-block;
  font: var(--text-caption);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--color-primary-500);
  margin-bottom: var(--space-3);
  font-weight: 600;
}

.section-header__title {
  font: var(--text-display-md);
  color: var(--color-neutral-900);
  margin-bottom: var(--space-4);
}

.section-header__subtitle {
  font: var(--text-body-lg);
  color: var(--color-neutral-500);
}