/* Troca Canarinhos — Phase 1 styles. Mobile-first, iFood-branded (SPEC §9). */

:root {
  --color-primary: #ea1d2c;       /* iFood red */
  --color-primary-dark: #c4121f;
  --color-text: #3f3e3e;
  --color-muted: #7a7676;
  --color-bg: #ffffff;
  --color-surface: #fbf7f6;
  --color-border: #ece7e6;
  --color-success-bg: #e8f6ec;
  --color-success-text: #1b6b34;
  --color-error-bg: #fde8ea;
  --color-error-text: #b00d1c;

  --radius: 12px;
  --shadow: 0 2px 10px rgba(63, 62, 62, 0.08);
  --maxw: 960px;
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.55;
}

.container {
  width: 100%;
  max-width: var(--maxw);
  margin: 0 auto;
  padding: 0 1rem;
}

a { color: var(--color-primary-dark); }

/* Header / nav */
.site-header {
  background: var(--color-primary);
  color: #fff;
  position: sticky;
  top: 0;
  z-index: 10;
}
.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding-top: 0.75rem;
  padding-bottom: 0.75rem;
}
.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  color: #fff;
  text-decoration: none;
  font-weight: 800;
  font-size: 1.15rem;
}
.brand__mark {
  display: block;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  object-fit: cover;
  object-position: center 35%;
  background: #fff;
  border: 2px solid #fff;
}
.nav {
  display: flex;
  align-items: center;
  gap: 0.25rem 1rem;
  flex-wrap: wrap;
}
.nav a {
  color: #fff;
  text-decoration: none;
  font-weight: 600;
  padding: 0.35rem 0.25rem;
  border-bottom: 2px solid transparent;
}
.nav a.is-active { border-bottom-color: #fff; }
.nav__cta {
  background: #fff;
  color: var(--color-primary-dark) !important;
  border-radius: 999px;
  padding: 0.4rem 0.9rem !important;
  border-bottom: none !important;
}

/* Layout */
.main { padding: 1.5rem 1rem 3rem; }

.page-head { margin-bottom: 1.25rem; }
.page-head--row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
}
.page-head h1 { margin: 0 0 0.25rem; }

.muted { color: var(--color-muted); }
.note { color: var(--color-muted); font-size: 0.95rem; }

/* Hero */
.hero {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  margin-bottom: 1.5rem;
}
.hero__title { margin: 0 0 0.5rem; font-size: 1.9rem; }
.hero__intro { margin: 0 0 1.25rem; max-width: 60ch; }
.hero__actions { display: flex; gap: 0.75rem; flex-wrap: wrap; }

/* Panels */
.panel {
  background: #fff;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  margin-bottom: 1.5rem;
  box-shadow: var(--shadow);
}
.panel h2 { margin-top: 0; }
.panel--center { text-align: center; }

.steps { padding-left: 1.2rem; }
.steps li { margin-bottom: 0.5rem; }

.prose { max-width: 65ch; }
.prose h1 { margin-top: 0; }

/* Buttons */
.btn {
  display: inline-block;
  font-weight: 700;
  text-decoration: none;
  border-radius: 999px;
  padding: 0.6rem 1.2rem;
  border: 2px solid transparent;
  cursor: pointer;
  font-size: 1rem;
  line-height: 1.2;
}
.btn--primary { background: var(--color-primary); color: #fff; }
.btn--primary:hover { background: var(--color-primary-dark); }
.btn--ghost {
  background: transparent;
  color: var(--color-primary-dark);
  border-color: var(--color-primary);
}
.btn--ghost:hover { background: var(--color-surface); }

/* Canarinho grid */
.canarinho-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
  gap: 1rem;
}
.canarinho-grid--mini {
  grid-template-columns: repeat(auto-fill, minmax(110px, 1fr));
}
.canarinho-card {
  margin: 0;
  text-align: center;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.75rem;
}
.canarinho-card img {
  width: 100%;
  height: auto;
  aspect-ratio: 1 / 1;
  object-fit: contain;
}
.canarinho-card figcaption {
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  margin-top: 0.4rem;
  font-size: 0.9rem;
}
.canarinho-card--mini img { aspect-ratio: 1 / 1; }

/* Post list */
.post-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 1rem; }
.post-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}
.post-card__link {
  display: block;
  padding: 1.1rem 1.25rem;
  text-decoration: none;
  color: var(--color-text);
}
.post-card__link:hover { background: var(--color-surface); }
.post-card__head {
  display: flex;
  align-items: baseline;
  gap: 0.5rem;
  margin-bottom: 0.6rem;
}
.post-card__trade {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  flex-wrap: wrap;
}
.trade-arrow { color: var(--color-muted); font-size: 1.2rem; }
.trade-side { display: flex; flex-direction: column; gap: 0.2rem; }
.trade-label {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-weight: 700;
}
.trade-label--give { color: var(--color-success-text); }
.trade-label--want { color: var(--color-primary-dark); }
.post-card__cta {
  display: inline-block;
  margin-top: 0.75rem;
  color: var(--color-primary-dark);
  font-weight: 700;
  font-size: 0.95rem;
}

.trade-detail {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  margin-top: 1rem;
  align-items: flex-start;
}
.trade-detail .trade-side { flex: 1 1 240px; }
/* Keep standalone figures (e.g. the offered one) from blowing up. */
.trade-detail .trade-side > .canarinho-card { max-width: 180px; }

/* Forms */
.form { display: grid; gap: 1.1rem; max-width: 520px; }
.field { display: grid; gap: 0.4rem; border: 0; padding: 0; margin: 0; }
.field > label, .field > legend { font-weight: 700; }
.field input[type="text"],
.field input[type="email"],
.field input[type="number"],
.field select {
  font: inherit;
  padding: 0.75rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: #fff;
  width: 100%;
}
.field input[type="text"]:focus,
.field input[type="email"]:focus,
.field input[type="number"]:focus,
.field select:focus {
  outline: 2px solid var(--color-primary);
  outline-offset: 1px;
}
.checkbox-grid { display: grid; gap: 0.5rem; }
.checkbox {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-weight: 500;
  padding: 0.4rem 0.5rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

.filter {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-bottom: 1.25rem;
}
.filter select {
  font: inherit;
  padding: 0.45rem 0.6rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
}

/* Requests */
.request-list { list-style: none; margin: 0; padding: 0; display: grid; gap: 0.6rem; }
.request-item {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  flex-wrap: wrap;
}
.badge {
  font-size: 0.75rem;
  font-weight: 700;
  padding: 0.15rem 0.6rem;
  border-radius: 999px;
  text-transform: uppercase;
  letter-spacing: 0.03em;
}
.badge--pending { background: var(--color-surface); color: var(--color-muted); }

/* Flash / errors / empty */
.flash {
  border-radius: 8px;
  padding: 0.8rem 1rem;
  margin: 0 0 1.25rem;
}
.flash--success { background: var(--color-success-bg); color: var(--color-success-text); }
.flash--error { background: var(--color-error-bg); color: var(--color-error-text); }
ul.flash { padding-left: 2rem; }
.empty {
  color: var(--color-muted);
  background: var(--color-surface);
  border: 1px dashed var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  text-align: center;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--color-border);
  background: var(--color-surface);
  padding: 1.5rem 0;
  margin-top: 2rem;
}
.site-footer__disclaimer {
  margin: 0 0 0.5rem;
  font-size: 0.85rem;
  color: var(--color-muted);
  max-width: 70ch;
}
.site-footer__meta {
  margin: 0;
  font-size: 0.85rem;
  display: flex;
  gap: 0.5rem;
  flex-wrap: wrap;
  color: var(--color-muted);
}

.flash--info { background: var(--color-surface); color: var(--color-text); border: 1px solid var(--color-border); }

/* Nav: logout as a link-styled button */
.nav__logout { margin: 0; display: inline; }
.nav__linkbtn {
  background: none;
  border: none;
  color: #fff;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  padding: 0.35rem 0.25rem;
  border-bottom: 2px solid transparent;
}

/* City picker — two stacked selects */
.city-picker { display: grid; gap: 1.1rem; }

/* Small buttons + action rows on the account pages */
.btn--sm { padding: 0.4rem 0.9rem; font-size: 0.9rem; }
.request-actions { display: flex; gap: 0.5rem; flex-wrap: wrap; }
.request-actions form { margin: 0; }
.subhead { margin: 1rem 0 0.5rem; font-size: 1.05rem; }
.post-delete { margin: 1rem 0 0; }

.trade-inline {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  flex-wrap: wrap;
}

/* Status badges */
.badge--open, .badge--accepted { background: var(--color-success-bg); color: var(--color-success-text); }
.badge--closed, .badge--declined { background: var(--color-surface); color: var(--color-muted); }
.badge--pending { background: var(--color-surface); color: var(--color-muted); }

/* Contact box revealed on an accepted match */
.contact-box {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-surface);
  padding: 1rem 1.1rem;
  margin-top: 0.75rem;
}
.contact-box h3 { margin: 0 0 0.4rem; }
.contact-box p { margin: 0.25rem 0; }

@media (min-width: 640px) {
  .hero__title { font-size: 2.3rem; }
}