/* ==========================================================================
   AMAPEM — "O Fio" (The Thread) design system
   Archival ledger world: cream paper, ledger ink, MS-awareness orange.
   ========================================================================== */

*, *::before, *::after { box-sizing: border-box; }
html { -webkit-text-size-adjust: 100%; }

:root {
  /* Color */
  --ground: #F6F1E4;
  --ground-raised: #EFE7D3;
  --ground-deep: #E7DCC0;
  --ink: #211D1A;
  --ink-secondary: #5A4D40;
  --hairline-text: #7A6A56;
  --line: #D8CDB4;
  --line-strong: #C2B593;
  --accent: #E06A28;
  --accent-deep: #B8511C;
  --accent-text: #A84A18;
  --white: #FFFFFF;
  --success: #4B6B3A;
  --success-bg: #E8EEDF;
  --error: #96382B;
  --error-bg: #F3E2DC;
  --focus-ring: #A84A18;

  /* Type */
  --font-display: 'Newsreader', 'Iowan Old Style', 'Georgia', serif;
  --font-body: 'Inter', -apple-system, 'Segoe UI', sans-serif;

  /* Spacing scale */
  --space-1: 0.25rem;
  --space-2: 0.5rem;
  --space-3: 0.75rem;
  --space-4: 1rem;
  --space-5: 1.5rem;
  --space-6: 2rem;
  --space-7: 3rem;
  --space-8: 4.5rem;
  --space-9: 7rem;

  /* Shape */
  --radius: 3px;
  --measure: 68ch;

  /* Motion */
  --ease-out-expo: cubic-bezier(0.16, 1, 0.3, 1);
}

@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;
  }
}

/* ---- Base -------------------------------------------------------------- */

body {
  margin: 0;
  background: var(--ground);
  color: var(--ink);
  font-family: var(--font-body);
  font-size: 1.0625rem;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased;
}

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

a { color: var(--accent-text); text-decoration-thickness: 1px; text-underline-offset: 0.15em; }
a:hover { color: var(--accent-deep); }

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

h1, h2, h3, h4 {
  font-family: var(--font-display);
  color: var(--ink);
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.15;
  margin: 0 0 var(--space-4);
}

h1 { font-size: clamp(2.25rem, 5vw, 3.75rem); font-weight: 500; }
h2 { font-size: clamp(1.65rem, 3.2vw, 2.35rem); margin-top: var(--space-8); margin-bottom: var(--space-4); }
h3 { font-size: 1.3rem; margin-top: var(--space-6); margin-bottom: var(--space-3); }

p { margin: 0 0 var(--space-4); max-width: var(--measure); }
.lede { font-size: 1.25rem; color: var(--ink-secondary); max-width: 58ch; }

ul, ol { margin: 0 0 var(--space-4); padding-left: 1.3em; }
li { margin-bottom: var(--space-2); max-width: var(--measure); }

.container {
  width: 100%;
  max-width: 74rem;
  margin: 0 auto;
  padding: 0 var(--space-5);
}

.visually-hidden {
  position: absolute; width: 1px; height: 1px;
  padding: 0; margin: -1px; overflow: hidden;
  clip: rect(0,0,0,0); white-space: nowrap; border: 0;
}

.skip-link {
  position: absolute;
  left: var(--space-4);
  top: -60px;
  background: var(--ink);
  color: var(--ground);
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius);
  z-index: 200;
  transition: top 0.2s var(--ease-out-expo);
}
.skip-link:focus { top: var(--space-4); }

/* ---- Site header / thread nav ------------------------------------------ */

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--ground);
  border-bottom: 1px solid var(--line);
}

.site-header__bar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  text-decoration: none;
  color: var(--ink);
}
.brand:hover { color: var(--ink); }

.brand__mark {
  width: 34px;
  height: 34px;
  flex-shrink: 0;
}

.brand__text {
  font-family: var(--font-display);
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.01em;
  line-height: 1.1;
}
.brand__text small {
  display: block;
  font-family: var(--font-body);
  font-weight: 400;
  font-size: 0.7rem;
  color: var(--ink-secondary);
  letter-spacing: 0.02em;
  margin-top: 2px;
}

.menu-toggle {
  display: none;
  align-items: center;
  gap: var(--space-2);
  background: none;
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: var(--space-2) var(--space-3);
  font-family: var(--font-body);
  font-size: 0.9rem;
  color: var(--ink);
  cursor: pointer;
}
.menu-toggle:hover { border-color: var(--ink-secondary); }

/* the thread itself: a continuous line stringing every waypoint together */
.thread-nav { position: relative; }
.thread-nav__list {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  align-items: center;
  position: relative;
}
.thread-nav__list::before {
  content: "";
  position: absolute;
  left: 6px;
  right: 6px;
  top: 6px;
  height: 1px;
  background: var(--line-strong);
}
.thread-nav__item { position: relative; padding: 0 var(--space-4) 0 0; }
.thread-nav__item:last-child { padding-right: 0; }
.thread-nav__link {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  gap: var(--space-2);
  text-decoration: none;
  color: var(--ink-secondary);
  font-size: 0.85rem;
  padding-top: var(--space-4);
  white-space: nowrap;
}
.thread-nav__link::before {
  content: "";
  position: absolute;
  top: 0;
  left: 4px;
  width: 9px;
  height: 9px;
  border-radius: 50%;
  border: 2px solid var(--ink-secondary);
  background: var(--ground);
  transition: background 0.15s var(--ease-out-expo), border-color 0.15s var(--ease-out-expo);
}
.thread-nav__link:hover { color: var(--ink); }
.thread-nav__link:hover::before { border-color: var(--accent-deep); }
.thread-nav__item[aria-current="page"] .thread-nav__link {
  color: var(--ink);
  font-weight: 600;
}
.thread-nav__item[aria-current="page"] .thread-nav__link::before {
  border-color: var(--accent-deep);
  background: var(--accent);
}

/* ---- Buttons ------------------------------------------------------------ */

.btn {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-family: var(--font-body);
  font-size: 0.95rem;
  font-weight: 600;
  padding: var(--space-3) var(--space-5);
  border-radius: var(--radius);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s var(--ease-out-expo), border-color 0.15s var(--ease-out-expo), transform 0.1s var(--ease-out-expo);
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--accent-deep);
  color: var(--white);
}
.btn-primary:hover { background: #9c4315; color: var(--white); }
.btn-primary:disabled {
  background: var(--line-strong);
  color: var(--ink-secondary);
  cursor: not-allowed;
  transform: none;
}

.btn-secondary {
  background: transparent;
  color: var(--ink);
  border-color: var(--line-strong);
}
.btn-secondary:hover { border-color: var(--ink); color: var(--ink); }

/* ---- Hero thread (home first viewport) ---------------------------------- */

.hero {
  padding: var(--space-8) 0 var(--space-6);
}
.hero__seal {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.8rem;
  color: var(--ink-secondary);
  border: 1px solid var(--line-strong);
  border-radius: 999px;
  padding: var(--space-1) var(--space-4) var(--space-1) var(--space-2);
  margin-bottom: var(--space-5);
}
.hero__seal svg { width: 20px; height: 20px; }

.hero__grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: var(--space-8);
  align-items: start;
}

.hero h1 { margin-bottom: var(--space-4); }

.hero__actions {
  display: flex;
  gap: var(--space-4);
  margin-top: var(--space-6);
  flex-wrap: wrap;
}

.journey {
  margin-top: var(--space-9);
}
.journey__intro { max-width: 62ch; margin-bottom: var(--space-7); }

.journey__thread {
  position: relative;
}
.journey__thread svg.journey__line {
  position: absolute;
  top: 27px;
  left: 0;
  width: 100%;
  height: 6px;
  overflow: visible;
}
.journey__line path {
  stroke: var(--accent);
  stroke-width: 2;
  fill: none;
  stroke-dasharray: 100;
  stroke-dashoffset: 100;
  animation: draw-thread 1.6s var(--ease-out-expo) forwards;
  animation-play-state: paused;
}
.journey__thread.is-visible .journey__line path { animation-play-state: running; }

@keyframes draw-thread {
  to { stroke-dashoffset: 0; }
}

.journey__stops {
  display: grid;
  grid-template-columns: repeat(6, 1fr);
  gap: var(--space-4);
  position: relative;
}

.journey__stop {
  display: flex;
  flex-direction: column;
  align-items: flex-start;
  text-decoration: none;
  color: var(--ink);
  padding-top: var(--space-7);
  position: relative;
}
.journey__stop::before {
  content: attr(data-step);
  position: absolute;
  top: 0;
  left: 0;
  width: 30px;
  height: 30px;
  border-radius: 50%;
  background: var(--ground);
  border: 2px solid var(--accent-deep);
  color: var(--accent-deep);
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  justify-content: center;
}
.journey__stop-label {
  font-family: var(--font-display);
  font-weight: 600;
  font-size: 1.05rem;
  margin-bottom: var(--space-1);
}
.journey__stop-desc {
  font-size: 0.85rem;
  color: var(--ink-secondary);
}
.journey__stop:hover .journey__stop-label { color: var(--accent-deep); }
.journey__stop:hover::before { background: var(--accent); border-color: var(--accent-deep); color: var(--white); }

/* ---- Ledger card & content components ----------------------------------- */

.ledger-card {
  background: var(--ground-raised);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: var(--space-6);
  box-shadow: 0 6px 18px -12px rgba(33, 29, 26, 0.35);
}

.ledger-card + .ledger-card { margin-top: var(--space-5); }

.ledger-card__marker {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-secondary);
  margin-bottom: var(--space-3);
}
.ledger-card__marker::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}

.ledger-card h3 { margin-top: 0; }

/* Confirmed fact vs. varies-by-person: the site's honesty device */
.fact-confirmed { color: var(--ink); }
.fact-varies {
  font-style: italic;
  color: var(--hairline-text);
  border-left: none;
  position: relative;
}
.fact-varies::after {
  content: "varia de pessoa para pessoa";
  display: block;
  font-style: normal;
  font-size: 0.75rem;
  color: var(--ink-secondary);
  margin-top: var(--space-1);
  letter-spacing: 0.01em;
}

.review-flag {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
  background: var(--ground-deep);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  padding: var(--space-4) var(--space-5);
  margin: var(--space-6) 0;
  font-size: 0.9rem;
  color: var(--ink-secondary);
}
.review-flag svg { width: 22px; height: 22px; flex-shrink: 0; color: var(--accent-deep); }
.review-flag strong { color: var(--ink); }

/* Section grid for symptom/treatment listings — varied internal layout,
   not a repeated icon+heading+text tile */
.entry-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-5);
  margin: var(--space-6) 0;
}

.entry {
  border-top: 1px solid var(--line-strong);
  padding-top: var(--space-4);
}
.entry__label {
  font-family: var(--font-display);
  font-size: 1.1rem;
  font-weight: 600;
  margin-bottom: var(--space-2);
}

/* Associations directory */
.assoc-list { list-style: none; margin: var(--space-6) 0; padding: 0; }
.assoc-item {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: baseline;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  border-bottom: 1px solid var(--line);
}
.assoc-item__region {
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  color: var(--ink-secondary);
}
.assoc-item__name { font-family: var(--font-display); font-size: 1.15rem; font-weight: 600; }

.empty-state {
  text-align: left;
  padding: var(--space-6);
  border: 1px dashed var(--line-strong);
  border-radius: var(--radius);
  color: var(--ink-secondary);
}

/* ---- Contact form -------------------------------------------------------- */

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-8);
  margin-top: var(--space-6);
}

.field { margin-bottom: var(--space-5); }
.field label {
  display: block;
  font-size: 0.85rem;
  font-weight: 600;
  color: var(--ink);
  margin-bottom: var(--space-2);
}
.field .hint { font-size: 0.78rem; color: var(--ink-secondary); margin-top: var(--space-1); }

.field input,
.field textarea {
  width: 100%;
  font-family: var(--font-body);
  font-size: 1rem;
  color: var(--ink);
  background: var(--ground);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius);
  padding: var(--space-3) var(--space-4);
}
.field input:focus,
.field textarea:focus {
  outline: none;
  border-color: var(--accent-deep);
  box-shadow: 0 0 0 3px rgba(184, 81, 28, 0.15);
}
.field textarea { min-height: 9rem; resize: vertical; }
.field.has-error input,
.field.has-error textarea { border-color: var(--error); }
.field__error {
  display: none;
  font-size: 0.8rem;
  color: var(--error);
  margin-top: var(--space-1);
}
.field.has-error .field__error { display: block; }

.form-status {
  display: none;
  align-items: flex-start;
  gap: var(--space-3);
  padding: var(--space-4) var(--space-5);
  border-radius: var(--radius);
  margin-bottom: var(--space-5);
  font-size: 0.92rem;
}
.form-status.is-visible { display: flex; }
.form-status svg { width: 20px; height: 20px; flex-shrink: 0; margin-top: 2px; }
.form-status--success { background: var(--success-bg); color: var(--success); }
.form-status--error { background: var(--error-bg); color: var(--error); }

.btn[aria-busy="true"] { position: relative; color: transparent; pointer-events: none; }
.btn[aria-busy="true"]::after {
  content: "";
  position: absolute;
  width: 16px;
  height: 16px;
  border: 2px solid rgba(255,255,255,0.4);
  border-top-color: #fff;
  border-radius: 50%;
  animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.contact-info__item {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
  margin-bottom: var(--space-5);
}
.contact-info__item svg { width: 22px; height: 22px; color: var(--accent-deep); flex-shrink: 0; margin-top: 2px; }
.contact-info__item h3 { margin: 0 0 var(--space-1); font-size: 1rem; }
.contact-info__item p { margin: 0; color: var(--ink-secondary); font-size: 0.95rem; }

/* ---- Footer --------------------------------------------------------------- */

.site-footer {
  margin-top: var(--space-9);
  border-top: 1px solid var(--line);
  padding: var(--space-7) 0 var(--space-6);
  background: var(--ground-raised);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.3fr 1fr 1fr;
  gap: var(--space-6);
}
.footer-grid h4 {
  font-family: var(--font-body);
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--ink-secondary);
  margin-bottom: var(--space-3);
}
.footer-links { list-style: none; margin: 0; padding: 0; }
.footer-links li { margin-bottom: var(--space-2); }
.footer-links a { color: var(--ink); text-decoration: none; }
.footer-links a:hover { color: var(--accent-deep); }
.footer-bottom {
  margin-top: var(--space-7);
  padding-top: var(--space-5);
  border-top: 1px solid var(--line);
  font-size: 0.82rem;
  color: var(--ink-secondary);
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: var(--space-3);
}

/* ---- Page intro pattern (shared across content pages) --------------------- */

.page-intro { padding: var(--space-7) 0 var(--space-4); max-width: 68ch; }
.page-intro h1 { margin-bottom: var(--space-3); }

.page-content { padding-bottom: var(--space-9); }

/* ---- Responsive ------------------------------------------------------------ */

@media (max-width: 900px) {
  .menu-toggle { display: inline-flex; }

  .thread-nav {
    position: fixed;
    inset: 0;
    top: 65px;
    background: var(--ground);
    padding: var(--space-6) var(--space-5);
    overflow-y: auto;
    display: none;
    z-index: 90;
  }
  .thread-nav.is-open { display: block; }
  .thread-nav__list {
    flex-direction: column;
    align-items: stretch;
    gap: var(--space-5);
  }
  .thread-nav__list::before {
    left: 6px; right: auto; top: 6px; bottom: 6px;
    width: 1px; height: auto;
  }
  .thread-nav__item { padding: 0; }
  .thread-nav__link {
    padding-top: 0;
    padding-left: var(--space-6);
    font-size: 1.05rem;
  }
  .thread-nav__link::before { top: 4px; left: 0; }

  .hero__grid { grid-template-columns: 1fr; gap: var(--space-6); }
  .journey__stops { grid-template-columns: repeat(2, 1fr); gap: var(--space-6) var(--space-4); }
  .journey__thread svg.journey__line { display: none; }

  .entry-grid { grid-template-columns: 1fr; }
  .contact-layout { grid-template-columns: 1fr; gap: var(--space-6); }
  .footer-grid { grid-template-columns: 1fr; gap: var(--space-5); }
}

@media (max-width: 560px) {
  .journey__stops { grid-template-columns: 1fr; }
  .hero { padding: var(--space-6) 0 var(--space-5); }
}