/**
 * ============================================================
 * We Med Laudos — Design System CSS
 * Estilo: Claymorphism Profissional (Setor Medico)
 * Versao: 1.0.0
 * Data: 2026-05-11
 * ============================================================
 *
 * Principios:
 * - Credibilidade medica: cores frias, tons de azul e teal
 * - Claymorphism sutil: sombras internas + externas, bordas arredondadas
 * - Performance: CSS puro, zero dependencias
 * - Acessibilidade: contraste WCAG AA, foco visivel, reduced-motion
 */

/* ============================================================
   1. VARIAVEIS GLOBAIS
   ============================================================ */
:root {
  /* --------------------------------------------------------
     2. PALETA DE CORES
     Primarias: Azul medico profissional
     Secundarias: Teal/verde agua (saude, confianca)
     Neutras: Cinzas quentes (evita frieza excessiva)
     -------------------------------------------------------- */

  /* Primaria */
  --color-primary-50:  #e6f2ff;
  --color-primary-100: #b3d9ff;
  --color-primary-200: #80bfff;
  --color-primary-300: #4d9fff;
  --color-primary-400: #1a7fff;
  --color-primary-500: #0066cc; /* Principal */
  --color-primary-600: #0052a3;
  --color-primary-700: #003d7a;
  --color-primary-800: #002952;
  --color-primary-900: #001429;

  /* Secundaria (Teal/Saude) */
  --color-secondary-50:  #e6f7f5;
  --color-secondary-100: #b3ebe5;
  --color-secondary-200: #80dfd5;
  --color-secondary-300: #4dd3c5;
  --color-secondary-400: #1ac7b5;
  --color-secondary-500: #00bfa5; /* Principal */
  --color-secondary-600: #009984;
  --color-secondary-700: #007363;
  --color-secondary-800: #004d42;
  --color-secondary-900: #002621;

  /* Neutras (Cinza quente) */
  --color-neutral-0:  #ffffff;
  --color-neutral-50: #f7f8f9;
  --color-neutral-100: #eef0f2;
  --color-neutral-200: #d5d9dd;
  --color-neutral-300: #b0b7bf;
  --color-neutral-400: #8a949e;
  --color-neutral-500: #64707d;
  --color-neutral-600: #4d5761;
  --color-neutral-700: #363d45;
  --color-neutral-800: #1f2429;
  --color-neutral-900: #08090a;

  /* Estado */
  --color-success: #10b981;
  --color-warning: #f59e0b;
  --color-danger:  #ef4444;
  --color-info:    #3b82f6;

  /* --------------------------------------------------------
     3. TIPOGRAFIA
     Fonte: Inter (sans-serif moderna, alta legibilidade)
     Fallback: system-ui stack
     -------------------------------------------------------- */
  --font-sans: 'Inter', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
  --font-serif: 'Merriweather', Georgia, 'Times New Roman', serif;

  --text-xs:   0.75rem;   /* 12px */
  --text-sm:   0.875rem;  /* 14px */
  --text-base: 1rem;      /* 16px */
  --text-lg:   1.125rem;  /* 18px */
  --text-xl:   1.25rem;   /* 20px */
  --text-2xl:  1.5rem;    /* 24px */
  --text-3xl:  1.875rem;  /* 30px */
  --text-4xl:  2.25rem;   /* 36px */
  --text-5xl:  3rem;      /* 48px */

  --font-light:    300;
  --font-regular:  400;
  --font-medium:   500;
  --font-semibold: 600;
  --font-bold:     700;

  --leading-none:    1;
  --leading-tight:   1.25;
  --leading-snug:    1.375;
  --leading-normal:  1.5;
  --leading-relaxed: 1.625;
  --leading-loose:   2;

  /* --------------------------------------------------------
     4. SISTEMA DE ESPACAMENTO (8px base)
     -------------------------------------------------------- */
  --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 */

  /* --------------------------------------------------------
     CLAYMORPHISM — Sombras e Bordas
     -------------------------------------------------------- */
  --radius-sm:  0.5rem;   /* 8px  */
  --radius-md:  0.75rem; /* 12px */
  --radius-lg:  1rem;    /* 16px */
  --radius-xl:  1.5rem;   /* 24px */
  --radius-2xl: 2rem;    /* 32px */
  --radius-full: 9999px;

  /* Sombras clay: inset (luz superior) + drop (sombra inferior) */
  --shadow-clay-sm:
    inset 0 1px 2px rgba(255, 255, 255, 0.6),
    0 2px 4px rgba(31, 36, 41, 0.06),
    0 1px 2px rgba(31, 36, 41, 0.04);

  --shadow-clay:
    inset 0 2px 4px rgba(255, 255, 255, 0.5),
    0 8px 16px rgba(31, 36, 41, 0.08),
    0 4px 8px rgba(31, 36, 41, 0.04);

  --shadow-clay-lg:
    inset 0 3px 6px rgba(255, 255, 255, 0.45),
    0 16px 32px rgba(31, 36, 41, 0.1),
    0 8px 16px rgba(31, 36, 41, 0.06);

  --shadow-clay-inset:
    inset 0 2px 4px rgba(31, 36, 41, 0.06),
    inset 0 -1px 2px rgba(255, 255, 255, 0.5);

  /* Sombra plana (estado pressed/active) */
  --shadow-flat:
    inset 0 2px 4px rgba(31, 36, 41, 0.08);

  /* Transicoes */
  --transition-fast:   150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-normal: 250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:   350ms cubic-bezier(0.4, 0, 0.2, 1);

  /* Z-index scale */
  --z-dropdown: 100;
  --z-sticky:   200;
  --z-modal:    300;
  --z-tooltip:  400;
}

/* ============================================================
   RESET LEVE
   ============================================================ */
*, *::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-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--font-regular);
  line-height: var(--leading-normal);
  color: var(--color-neutral-800);
  background-color: var(--color-neutral-50);
}

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

input, button, textarea, select {
  font: inherit;
  color: inherit;
}

/* ============================================================
   5. CLASSES REUTILIZAVEIS
   ============================================================ */

/* --------------------------------------------------------
   5.1 CARDS (Claymorphism)
   -------------------------------------------------------- */
.card {
  background: var(--color-neutral-0);
  border-radius: var(--radius-xl);
  padding: var(--space-6);
  box-shadow: var(--shadow-clay);
  border: 1px solid var(--color-neutral-100);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-clay-lg);
}

.card--flat {
  box-shadow: var(--shadow-clay-sm);
  border-radius: var(--radius-lg);
}

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

.card--inset {
  background: var(--color-neutral-50);
  box-shadow: var(--shadow-clay-inset);
  border: none;
}

.card--inset:hover {
  transform: none;
  box-shadow: var(--shadow-clay-inset);
}

.card--primary {
  background: linear-gradient(145deg, var(--color-primary-500), var(--color-primary-600));
  color: var(--color-neutral-0);
  border: none;
}

.card--primary .card__title,
.card--primary .card__text {
  color: var(--color-neutral-0);
}

.card__title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  line-height: var(--leading-tight);
  color: var(--color-neutral-900);
  margin-bottom: var(--space-3);
}

.card__text {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-neutral-600);
}

.card__icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 3rem;
  height: 3rem;
  border-radius: var(--radius-lg);
  background: var(--color-primary-50);
  color: var(--color-primary-500);
  margin-bottom: var(--space-4);
  font-size: var(--text-xl);
  box-shadow: var(--shadow-clay-sm);
}

/* --------------------------------------------------------
   5.2 BOTOES
   -------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  line-height: var(--leading-none);
  text-decoration: none;
  text-align: center;
  border: none;
  border-radius: var(--radius-lg);
  cursor: pointer;
  box-shadow: var(--shadow-clay);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast), background-color var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 2px 4px rgba(255,255,255,0.25);
  pointer-events: none;
}

.btn--primary {
  background: linear-gradient(145deg, var(--color-primary-500), var(--color-primary-600));
  color: var(--color-neutral-0);
}

.btn--primary:hover {
  background: linear-gradient(145deg, var(--color-primary-400), var(--color-primary-500));
  transform: translateY(-2px);
  box-shadow: var(--shadow-clay-lg);
}

.btn--primary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-flat);
}

.btn--secondary {
  background: linear-gradient(145deg, var(--color-secondary-500), var(--color-secondary-600));
  color: var(--color-neutral-0);
}

.btn--secondary:hover {
  background: linear-gradient(145deg, var(--color-secondary-400), var(--color-secondary-500));
  transform: translateY(-2px);
  box-shadow: var(--shadow-clay-lg);
}

.btn--secondary:active {
  transform: translateY(0);
  box-shadow: var(--shadow-flat);
}

.btn--outline {
  background: var(--color-neutral-0);
  color: var(--color-primary-600);
  border: 2px solid var(--color-primary-200);
  box-shadow: var(--shadow-clay-sm);
}

.btn--outline:hover {
  background: var(--color-primary-50);
  border-color: var(--color-primary-300);
  transform: translateY(-2px);
}

.btn--outline:active {
  transform: translateY(0);
  box-shadow: var(--shadow-flat);
}

.btn--ghost {
  background: transparent;
  color: var(--color-primary-600);
  box-shadow: none;
}

.btn--ghost:hover {
  background: var(--color-primary-50);
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-sm);
  border-radius: var(--radius-md);
}

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

/* --------------------------------------------------------
   5.3 BADGES
   -------------------------------------------------------- */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-1);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  line-height: var(--leading-none);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-clay-sm);
}

.badge--primary {
  background: var(--color-primary-50);
  color: var(--color-primary-700);
}

.badge--secondary {
  background: var(--color-secondary-50);
  color: var(--color-secondary-700);
}

.badge--success {
  background: #d1fae5;
  color: #065f46;
}

.badge--warning {
  background: #fef3c7;
  color: #92400e;
}

.badge--danger {
  background: #fee2e2;
  color: #991b1b;
}

/* --------------------------------------------------------
   5.4 SECOES
   -------------------------------------------------------- */
.section {
  padding: var(--space-16) var(--space-6);
}

.section--light {
  background: var(--color-neutral-0);
}

.section--muted {
  background: var(--color-neutral-50);
}

.section--primary {
  background: linear-gradient(145deg, var(--color-primary-500), var(--color-primary-700));
  color: var(--color-neutral-0);
}

.section--primary .section__title,
.section--primary .section__lead {
  color: var(--color-neutral-0);
}

.section__header {
  max-width: 48rem;
  margin: 0 auto var(--space-12);
  text-align: center;
}

.section__label {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-primary-600);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-3);
}

.section__title {
  font-size: var(--text-3xl);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  color: var(--color-neutral-900);
  margin-bottom: var(--space-4);
}

.section__lead {
  font-size: var(--text-lg);
  line-height: var(--leading-relaxed);
  color: var(--color-neutral-500);
}

.section__grid {
  display: grid;
  gap: var(--space-6);
  max-width: 72rem;
  margin: 0 auto;
}

.section__grid--3 {
  grid-template-columns: repeat(auto-fit, minmax(16rem, 1fr));
}

.section__grid--2 {
  grid-template-columns: repeat(auto-fit, minmax(20rem, 1fr));
}

.section__grid--4 {
  grid-template-columns: repeat(auto-fit, minmax(14rem, 1fr));
}

/* --------------------------------------------------------
   5.5 HERO
   -------------------------------------------------------- */
.hero {
  position: relative;
  padding: var(--space-24) var(--space-6) var(--space-16);
  background: linear-gradient(145deg, var(--color-primary-50), var(--color-neutral-0));
  overflow: hidden;
}

.hero__inner {
  position: relative;
  z-index: 1;
  max-width: 64rem;
  margin: 0 auto;
  text-align: center;
}

.hero__badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-4);
  background: var(--color-neutral-0);
  border-radius: var(--radius-full);
  box-shadow: var(--shadow-clay-sm);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-primary-600);
  margin-bottom: var(--space-6);
}

.hero__title {
  font-size: var(--text-5xl);
  font-weight: var(--font-bold);
  line-height: var(--leading-tight);
  color: var(--color-neutral-900);
  margin-bottom: var(--space-6);
}

.hero__title span {
  color: var(--color-primary-500);
}

.hero__lead {
  font-size: var(--text-xl);
  line-height: var(--leading-relaxed);
  color: var(--color-neutral-500);
  max-width: 40rem;
  margin: 0 auto var(--space-8);
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-4);
}

/* Claymorphism decoration blobs */
.hero__blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  opacity: 0.35;
  pointer-events: none;
}

.hero__blob--1 {
  width: 24rem;
  height: 24rem;
  background: var(--color-primary-200);
  top: -6rem;
  right: -6rem;
}

.hero__blob--2 {
  width: 20rem;
  height: 20rem;
  background: var(--color-secondary-200);
  bottom: -4rem;
  left: -4rem;
}

/* --------------------------------------------------------
   5.6 NAVBAR
   -------------------------------------------------------- */
.navbar {
  position: sticky;
  top: 0;
  z-index: var(--z-sticky);
  background: rgba(255, 255, 255, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-neutral-200);
  box-shadow: 0 1px 3px rgba(31, 36, 41, 0.04);
}

.navbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: 80rem;
  margin: 0 auto;
  padding: var(--space-4) var(--space-6);
}

.navbar__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  font-weight: var(--font-bold);
  font-size: var(--text-xl);
  color: var(--color-primary-600);
}

.navbar__logo {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: var(--radius-md);
  background: linear-gradient(145deg, var(--color-primary-500), var(--color-primary-600));
  box-shadow: var(--shadow-clay-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  font-weight: var(--font-bold);
}

.navbar__links {
  display: none;
  align-items: center;
  gap: var(--space-1);
  list-style: none;
}

.navbar__link {
  display: inline-flex;
  padding: var(--space-2) var(--space-4);
  border-radius: var(--radius-md);
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-neutral-600);
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.navbar__link:hover {
  background: var(--color-primary-50);
  color: var(--color-primary-600);
}

.navbar__cta {
  display: none;
}

/* Mobile menu toggle */
.navbar__toggle {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: var(--space-2);
  background: none;
  border: none;
  cursor: pointer;
}

.navbar__toggle-bar {
  width: 1.5rem;
  height: 2px;
  background: var(--color-neutral-700);
  border-radius: var(--radius-full);
  transition: transform var(--transition-fast), opacity var(--transition-fast);
}

/* --------------------------------------------------------
   5.7 FORMULARIO
   -------------------------------------------------------- */
.form {
  max-width: 32rem;
  margin: 0 auto;
}

.form__group {
  margin-bottom: var(--space-5);
}

.form__label {
  display: block;
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--color-neutral-700);
  margin-bottom: var(--space-2);
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--text-base);
  color: var(--color-neutral-800);
  background: var(--color-neutral-0);
  border: 2px solid var(--color-neutral-200);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-clay-inset);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: var(--color-neutral-400);
}

.form__input:hover,
.form__select:hover,
.form__textarea:hover {
  border-color: var(--color-primary-300);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-primary-500);
  box-shadow:
    inset 0 2px 4px rgba(31, 36, 41, 0.04),
    0 0 0 3px var(--color-primary-100);
}

.form__textarea {
  min-height: 8rem;
  resize: vertical;
}

.form__hint {
  font-size: var(--text-sm);
  color: var(--color-neutral-500);
  margin-top: var(--space-2);
}

.form__error {
  font-size: var(--text-sm);
  color: var(--color-danger);
  margin-top: var(--space-2);
}

/* --------------------------------------------------------
   5.8 FAQ (Accordion)
   -------------------------------------------------------- */
.faq {
  max-width: 48rem;
  margin: 0 auto;
}

.faq__item {
  background: var(--color-neutral-0);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-clay-sm);
  border: 1px solid var(--color-neutral-100);
  margin-bottom: var(--space-4);
  overflow: hidden;
  transition: box-shadow var(--transition-normal);
}

.faq__item:hover {
  box-shadow: var(--shadow-clay);
}

.faq__question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-5) var(--space-6);
  font-family: var(--font-sans);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--color-neutral-800);
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
}

.faq__question::after {
  content: '+';
  flex-shrink: 0;
  width: 1.5rem;
  height: 1.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  background: var(--color-primary-50);
  color: var(--color-primary-600);
  font-size: var(--text-lg);
  font-weight: var(--font-bold);
  transition: transform var(--transition-normal), background-color var(--transition-normal);
  box-shadow: var(--shadow-clay-sm);
}

.faq__item[open] .faq__question::after,
.faq__item.is-open .faq__question::after {
  content: '−';
  transform: rotate(0);
  background: var(--color-primary-500);
  color: var(--color-neutral-0);
}

.faq__answer {
  padding: 0 var(--space-6) var(--space-6);
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-neutral-600);
}

/* --------------------------------------------------------
   5.9 CARDS DE SERVICOS
   -------------------------------------------------------- */
.service-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
  padding: var(--space-6);
  background: var(--color-neutral-0);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-clay);
  border: 1px solid var(--color-neutral-100);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
  text-decoration: none;
  color: inherit;
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-clay-lg);
}

.service-card__icon {
  width: 3.5rem;
  height: 3.5rem;
  border-radius: var(--radius-lg);
  background: linear-gradient(145deg, var(--color-primary-500), var(--color-primary-600));
  color: var(--color-neutral-0);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-2xl);
  box-shadow: var(--shadow-clay-sm);
  flex-shrink: 0;
}

.service-card__icon--secondary {
  background: linear-gradient(145deg, var(--color-secondary-500), var(--color-secondary-600));
}

.service-card__title {
  font-size: var(--text-xl);
  font-weight: var(--font-semibold);
  color: var(--color-neutral-900);
}

.service-card__text {
  font-size: var(--text-base);
  line-height: var(--leading-relaxed);
  color: var(--color-neutral-600);
}

.service-card__cta {
  margin-top: auto;
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-primary-600);
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
}

/* --------------------------------------------------------
   5.10 CARDS DE METRICAS
   -------------------------------------------------------- */
.metric-card {
  text-align: center;
  padding: var(--space-8) var(--space-6);
  background: var(--color-neutral-0);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-clay);
  border: 1px solid var(--color-neutral-100);
  transition: transform var(--transition-normal), box-shadow var(--transition-normal);
}

.metric-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-clay-lg);
}

.metric-card__value {
  font-size: var(--text-4xl);
  font-weight: var(--font-bold);
  line-height: var(--leading-none);
  color: var(--color-primary-500);
  margin-bottom: var(--space-3);
}

.metric-card__label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--color-neutral-500);
}

.metric-card__icon {
  width: 3rem;
  height: 3rem;
  margin: 0 auto var(--space-4);
  border-radius: var(--radius-lg);
  background: var(--color-primary-50);
  color: var(--color-primary-500);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xl);
  box-shadow: var(--shadow-clay-sm);
}

/* ============================================================
   6. ESTADOS HOVER / FOCUS / ACTIVE / DISABLED
   ============================================================ */

/* Focus visivel para acessibilidade */
*:focus-visible {
  outline: 3px solid var(--color-primary-400);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Links */
a {
  color: var(--color-primary-600);
  text-decoration: underline;
  text-underline-offset: 2px;
  transition: color var(--transition-fast);
}

a:hover {
  color: var(--color-primary-500);
}

a:focus-visible {
  outline: 3px solid var(--color-primary-400);
  outline-offset: 2px;
  border-radius: var(--radius-sm);
}

/* Botoes disabled */
.btn:disabled,
.btn.is-disabled {
  opacity: 0.5;
  cursor: not-allowed;
  transform: none !important;
  box-shadow: none !important;
}

/* Inputs disabled */
.form__input:disabled,
.form__textarea:disabled,
.form__select:disabled {
  background: var(--color-neutral-100);
  color: var(--color-neutral-400);
  cursor: not-allowed;
  border-color: var(--color-neutral-200);
}

/* Estados de validacao */
.form__input.is-valid,
.form__textarea.is-valid {
  border-color: var(--color-success);
  background-color: #f0fdf4;
}

.form__input.is-invalid,
.form__textarea.is-invalid {
  border-color: var(--color-danger);
  background-color: #fef2f2;
}

/* ============================================================
   7. REGRAS RESPONSIVAS
   ============================================================ */

/* Tablet (768px+) */
@media (min-width: 48rem) {
  .navbar__links {
    display: flex;
  }

  .navbar__toggle {
    display: none;
  }

  .navbar__cta {
    display: inline-flex;
  }

  .hero__title {
    font-size: var(--text-5xl);
  }

  .section {
    padding: var(--space-20) var(--space-8);
  }

  .section__title {
    font-size: var(--text-4xl);
  }

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

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

/* Desktop (1024px+) */
@media (min-width: 64rem) {
  .hero__title {
    font-size: 3.5rem;
  }

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

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

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

/* Wide (1280px+) */
@media (min-width: 80rem) {
  .section__grid {
    max-width: 80rem;
  }
}

/* ============================================================
   8. CUIDADOS DE ACESSIBILIDADE
   ============================================================ */

/* 8.1 Reduzir movimento para usuarios sensiveis */
@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;
  }

  .card:hover,
  .service-card:hover,
  .metric-card:hover,
  .faq__item:hover {
    transform: none !important;
  }
}

/* 8.2 Alto contraste (Windows High Contrast Mode) */
@media (prefers-contrast: more) {
  .card,
  .service-card,
  .metric-card,
  .faq__item,
  .form__input,
  .btn {
    border-width: 2px;
    box-shadow: none !important;
  }

  .btn--primary,
  .btn--secondary {
    background: var(--color-primary-700) !important;
    color: var(--color-neutral-0) !important;
  }
}

/* 8.3 Modo escuro (opcional, se necessario futuramente) */
/*
@media (prefers-color-scheme: dark) {
  :root {
    --color-neutral-0:  #1f2429;
    --color-neutral-50: #2a3036;
    --color-neutral-100: #363d45;
    --color-neutral-200: #4d5761;
    --color-neutral-800: #eef0f2;
    --color-neutral-900: #f7f8f9;
  }
}
*/

/* 8.4 Skip link para navegacao por teclado */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: calc(var(--z-modal) + 1);
  padding: var(--space-3) var(--space-6);
  background: var(--color-primary-600);
  color: var(--color-neutral-0);
  font-weight: var(--font-medium);
  text-decoration: none;
  border-radius: var(--radius-md);
  box-shadow: var(--shadow-clay);
}

.skip-link:focus {
  top: var(--space-4);
}

/* 8.5 Screen-reader only */
.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;
}

/* 8.6 Texto visivel sem imagens */
.text-gradient {
  background: linear-gradient(135deg, var(--color-primary-500), var(--color-secondary-500));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ============================================================
   9. UTILITARIOS
   ============================================================ */
.container {
  width: 100%;
  max-width: 80rem;
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.text-center { text-align: center; }
.text-left   { text-align: left; }
.text-right  { text-align: right; }

.mt-0  { margin-top: var(--space-0); }
.mt-4  { margin-top: var(--space-4); }
.mt-6  { margin-top: var(--space-6); }
.mt-8  { margin-top: var(--space-8); }
.mt-12 { margin-top: var(--space-12); }

.mb-0  { margin-bottom: var(--space-0); }
.mb-4  { margin-bottom: var(--space-4); }
.mb-6  { margin-bottom: var(--space-6); }
.mb-8  { margin-bottom: var(--space-8); }
.mb-12 { margin-bottom: var(--space-12); }

/* ============================================================
   10. EXEMPLO DE USO (comentado — remover ao implementar)
   ============================================================

   <link rel="preconnect" href="https://fonts.googleapis.com">
   <link href="https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&display=swap" rel="stylesheet">
   <link rel="stylesheet" href="css/design-system.css">

   <a href="#main" class="skip-link">Pular para o conteudo principal</a>

   <nav class="navbar" role="navigation" aria-label="Menu principal">
     <div class="navbar__inner">
       <a href="/" class="navbar__brand">
         <span class="navbar__logo">W</span>
         We Med Laudos
       </a>
       <ul class="navbar__links">
         <li><a href="/laudos-medicos-online.html" class="navbar__link">Servicos</a></li>
         <li><a href="/sobre.html" class="navbar__link">Sobre</a></li>
         <li><a href="/contato.html" class="navbar__link">Contato</a></li>
       </ul>
       <a href="/contato.html" class="btn btn--primary btn--sm navbar__cta">Solicitar Orcamento</a>
     </div>
   </nav>

   <header class="hero">
     <div class="hero__blob hero__blob--1"></div>
     <div class="hero__blob hero__blob--2"></div>
     <div class="hero__inner">
       <span class="hero__badge">Laudos Medicos 24/7</span>
       <h1 class="hero__title">Laudos Medicos a <span>Distancia</span></h1>
       <p class="hero__lead">Telemedicina para exames complementares com precisao e agilidade.</p>
       <div class="hero__actions">
         <a href="/contato.html" class="btn btn--primary btn--lg">Solicitar Orcamento</a>
         <a href="/laudos-medicos-online.html" class="btn btn--outline btn--lg">Conhecer Servicos</a>
       </div>
     </div>
   </header>

   <main id="main">
     <section class="section section--muted">
       <div class="section__header">
         <span class="section__label">Nossos Servicos</span>
         <h2 class="section__title">Solucoes completas em telemedicina</h2>
         <p class="section__lead">Atendemos clinicas e hospitais com laudos de imagem, cardiologia e medicina ocupacional.</p>
       </div>
       <div class="section__grid section__grid--3">
         <a href="/telerradiologia.html" class="service-card">
           <div class="service-card__icon">Rx</div>
           <h3 class="service-card__title">Telerradiologia</h3>
           <p class="service-card__text">Laudos de Raio-X, Tomografia e Ressonancia com radiologistas certificados.</p>
           <span class="service-card__cta">Saiba mais &rarr;</span>
         </a>
         ...
       </div>
     </section>
   </main>
*/