/* =============================================================
   CDC Teresina — Base layer (reset + utilities + components)
   Built on top of tokens.css (design system).
   ============================================================= */

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

html { scroll-behavior: smooth; -webkit-text-size-adjust: 100%; }
body {
  min-height: 100vh;
  font: var(--fw-regular) var(--fs-16)/var(--lh-normal) var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, picture, video, svg { display: block; max-width: 100%; height: auto; }
button, input, textarea, select { font: inherit; color: inherit; }
button { cursor: pointer; border: 0; background: none; }
a { color: var(--color-link); text-decoration: none; transition: color var(--duration-2) var(--ease-out); }
a:hover { color: var(--color-primary-hover); }
ul, ol { list-style: none; }

:focus-visible {
  outline: 3px solid rgba(0,168,186,.45);
  outline-offset: 2px;
  border-radius: var(--radius-xs);
}

.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;
}

/* ---------- Layout primitives ---------- */
.container {
  width: 100%;
  max-width: 1140px;
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}
.section {
  padding-block: clamp(3rem, 8vw, 5.5rem);
}
.section--soft  { background: var(--color-bg-subtle); }
.section--brand { background: var(--color-surface-brand); color: var(--color-text-on-brand); }
.section--deep  { background: var(--color-primary-active); color: var(--color-text-on-brand); }

/* ---------- Header ---------- */
.site-header {
  position: sticky; top: 0; z-index: 50;
  background: var(--cdc-teal-700);
  padding-block: var(--space-6);
  border-bottom: 1px solid rgba(255,255,255,.08);
}
.site-header__inner {
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--space-6);
}
.site-header__logo {
  font: var(--fw-medium) var(--fs-13)/1.1 var(--font-sans);
  color: var(--cdc-white);
  letter-spacing: 0;
  display: flex; align-items: center; gap: var(--space-5);
  min-width: 0;
}
.site-header__logo-img {
  height: 34px;
  width: auto;
  display: block;
  flex-shrink: 0;
}
.site-header__logo-suffix {
  display: none;
  color: rgba(255,255,255,.78);
  padding-left: var(--space-5);
  border-left: 1px solid rgba(255,255,255,.18);
  white-space: nowrap;
}
@media (min-width: 540px) {
  .site-header__logo-suffix { display: inline-block; }
}
.site-header__nav {
  display: none;
}
@media (min-width: 768px) {
  .site-header__nav { display: flex; gap: var(--space-8); }
  .site-header__nav a { color: rgba(255,255,255,.85); font-size: var(--fs-14); }
  .site-header__nav a:hover { color: var(--cdc-white); }
}
.site-header__cta {
  display: inline-flex; align-items: center; gap: var(--space-3);
  background: var(--cdc-whatsapp); color: var(--cdc-white);
  padding: 8px 14px; border-radius: var(--radius-md);
  font-size: var(--fs-14); font-weight: var(--fw-medium);
}
.site-header__cta:hover { background: #18950e; color: var(--cdc-white); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--space-3);
  padding: 12px 22px;
  border-radius: var(--radius-md);
  font: var(--fw-medium) var(--fs-14)/1 var(--font-sans);
  border: 1px solid transparent;
  transition: background var(--duration-2) var(--ease-out),
              border-color var(--duration-2) var(--ease-out),
              color var(--duration-2) var(--ease-out),
              transform var(--duration-2) var(--ease-out);
  white-space: nowrap;
}
.btn--lg { padding: 16px 28px; font-size: var(--fs-16); }
.btn--block { display: flex; width: 100%; }
.btn--primary { background: var(--color-primary); color: var(--cdc-white); border-color: var(--color-primary); }
.btn--primary:hover { background: var(--color-primary-hover); border-color: var(--color-primary-hover); color: var(--cdc-white); }
.btn--primary:active { background: var(--color-primary-active); border-color: var(--color-primary-active); }
.btn--outline { background: transparent; color: var(--color-primary); border-color: var(--color-primary); }
.btn--outline:hover { background: var(--color-primary); color: var(--cdc-white); }
.btn--outline-light { background: transparent; color: var(--cdc-white); border-color: rgba(255,255,255,.6); }
.btn--outline-light:hover { background: var(--cdc-white); color: var(--color-primary); border-color: var(--cdc-white); }
.btn--soft { background: var(--cdc-teal-100); color: var(--cdc-teal-700); border-color: var(--cdc-teal-100); font-weight: var(--fw-semibold); }
.btn--soft:hover { background: var(--cdc-teal-200); color: var(--cdc-teal-900); }
.btn--whatsapp { background: var(--cdc-whatsapp); color: var(--cdc-white); border-color: var(--cdc-whatsapp); }
.btn--whatsapp:hover { background: #18950e; border-color: #18950e; color: var(--cdc-white); }

/* ---------- Floating WhatsApp ---------- */
.whatsapp-floater {
  position: fixed; bottom: 18px; right: 18px; z-index: 100;
  width: 56px; height: 56px; border-radius: var(--radius-pill);
  background: var(--cdc-whatsapp); color: var(--cdc-white);
  display: grid; place-items: center;
  box-shadow: var(--shadow-md);
  transition: transform var(--duration-2) var(--ease-out);
}
.whatsapp-floater:hover { transform: scale(1.06); background: #18950e; color: var(--cdc-white); }
.whatsapp-floater svg { width: 28px; height: 28px; }

/* ---------- Badges / Chips ---------- */
.chip {
  display: inline-flex; align-items: center; gap: var(--space-3);
  padding: 6px 14px; border-radius: var(--radius-pill);
  background: var(--cdc-teal-100); color: var(--cdc-teal-700);
  font-size: var(--fs-12); font-weight: var(--fw-medium);
}
.chip--on-brand { background: rgba(255,255,255,.15); color: var(--cdc-white); }
.chip--brand { background: var(--color-primary); color: var(--cdc-white); }

/* ---------- Forms ---------- */
.form-group { margin-bottom: var(--space-7); }
.form-label {
  display: block; margin-bottom: var(--space-3);
  font-size: var(--fs-13); font-weight: var(--fw-medium); color: var(--color-text-muted);
}
.form-input, .form-select, .form-textarea {
  width: 100%; padding: 12px 16px;
  background: var(--cdc-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  font-size: var(--fs-14); color: var(--color-text);
  transition: border-color var(--duration-2) var(--ease-out), box-shadow var(--duration-2) var(--ease-out);
}
.form-input:focus, .form-select:focus, .form-textarea:focus {
  outline: none;
  border-color: var(--color-primary);
  box-shadow: 0 0 0 3px rgba(0,168,186,.18);
}
.form-input.error { border-color: var(--cdc-danger); }
.form-feedback { margin-top: var(--space-5); font-size: var(--fs-13); min-height: 20px; }
.form-feedback.success { color: var(--cdc-success); }
.form-feedback.error { color: var(--cdc-danger); }

/* ---------- FAQ Accordion ---------- */
.faq-list { display: flex; flex-direction: column; gap: var(--space-5); }
.faq-item {
  background: var(--cdc-teal-100);
  border-radius: var(--radius-md);
  overflow: hidden;
}
.faq-q {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between; gap: var(--space-6);
  padding: 18px 22px;
  font: var(--fw-semibold) var(--fs-17)/1.3 var(--font-sans);
  color: var(--cdc-teal-700);
  text-align: left;
}
.faq-q__icon {
  flex-shrink: 0;
  width: 24px; height: 24px; border-radius: var(--radius-pill);
  background: var(--cdc-white); color: var(--cdc-teal-500);
  display: grid; place-items: center;
  font-weight: var(--fw-semibold);
  transition: transform var(--duration-2) var(--ease-out);
}
.faq-item[open] .faq-q__icon { transform: rotate(45deg); }
.faq-a {
  padding: 0 22px 18px;
  font-size: var(--fs-14); line-height: var(--lh-relaxed);
  color: var(--cdc-teal-900);
}

/* ---------- Footer ---------- */
.site-footer {
  background: var(--cdc-teal-700);
  color: var(--cdc-white);
  padding: 50px 0 24px;
}
.site-footer h4 {
  color: var(--cdc-white);
  font-size: var(--fs-17); font-weight: var(--fw-semibold);
  margin-bottom: var(--space-6);
}
.site-footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-9);
  margin-bottom: var(--space-9);
}
@media (min-width: 768px) {
  .site-footer__grid { grid-template-columns: 1.4fr 1fr 1fr; }
}
.site-footer__contact p {
  font-size: var(--fs-14); line-height: var(--lh-relaxed);
  color: rgba(255,255,255,.85); margin-bottom: var(--space-3);
}
.site-footer__links { display: flex; flex-direction: column; gap: var(--space-3); }
.site-footer__links a { color: rgba(255,255,255,.85); font-size: var(--fs-14); }
.site-footer__links a:hover { color: var(--cdc-white); }
.site-footer__legal {
  border-top: 1px solid rgba(255,255,255,.12);
  padding-top: var(--space-6);
  font-size: var(--fs-12);
  color: rgba(255,255,255,.7);
  display: flex; flex-wrap: wrap; justify-content: space-between; gap: var(--space-5);
}

/* ---------- Animations ---------- */
.reveal {
  opacity: 0; transform: translateY(16px);
  transition: opacity 0.7s var(--ease-out), transform 0.7s var(--ease-out);
}
.reveal.is-visible { opacity: 1; transform: none; }

@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal { opacity: 1; transform: none; }
}