/* =============================================================================
   components.css — header/nav, buttons, cards, notices
   ============================================================================= */

/* ---- Site header & navigation ---- */
.site-header {
  border-bottom: 1px solid var(--sw-color-border);
  background: var(--sw-color-surface);
  position: sticky; top: 0; z-index: 100;
}
.site-header__bar {
  display: flex; align-items: center; justify-content: space-between; flex-wrap: wrap; gap: var(--sw-space-2);
  padding: var(--sw-space-3) 0;
  max-width: var(--sw-container); margin: 0 auto; padding-left: var(--sw-space-4); padding-right: var(--sw-space-4);
}
.brand { display: flex; align-items: baseline; gap: var(--sw-space-2); text-decoration: none; min-width: 0; }
.brand__name { font-weight: 700; font-size: 1.15rem; color: var(--sw-color-link); overflow-wrap: break-word; }
.brand__tag  { font-size: 0.8rem; color: var(--sw-color-text-muted); display: none; }
@media (min-width: 640px) { .brand__tag { display: inline; } }

.nav-toggle {
  display: inline-flex; align-items: center; gap: var(--sw-space-2);
  background: none; border: 2px solid var(--sw-color-border); border-radius: var(--sw-radius);
  padding: var(--sw-space-2) var(--sw-space-3); font: inherit; color: var(--sw-color-text); cursor: pointer;
}
@media (min-width: 900px) { .nav-toggle { display: none; } }

.primary-nav { }
.primary-nav__list {
  list-style: none; margin: 0; padding: 0;
  display: none;
  flex-direction: column;
  gap: var(--sw-space-1);
  border-top: 1px solid var(--sw-color-border);
  padding-top: var(--sw-space-3); margin-top: var(--sw-space-3);
}
.primary-nav.is-open .primary-nav__list { display: flex; }
.primary-nav__list a {
  display: block; padding: var(--sw-space-2) var(--sw-space-2);
  text-decoration: none; color: var(--sw-color-text); border-radius: var(--sw-radius);
}
.primary-nav__list a[aria-current="page"] { background: var(--sw-color-primary-light); color: var(--sw-color-link); font-weight: 600; }
.primary-nav__list a:hover { background: var(--sw-color-surface-alt); }

@media (min-width: 900px) {
  .site-header__bar { flex-wrap: wrap; }
  .primary-nav__list {
    display: flex; flex-direction: row; flex-wrap: wrap;
    border-top: none; padding-top: 0; margin-top: 0; gap: var(--sw-space-1);
  }
}

.site-header__controls { display: flex; align-items: center; gap: var(--sw-space-3); flex-wrap: wrap; justify-content: flex-end; }

.lang-switch { display: flex; gap: var(--sw-space-1); align-items: center; font-size: 0.85rem; }
.lang-switch button {
  background: none; border: 1px solid var(--sw-color-border); border-radius: 6px;
  padding: 2px 8px; font: inherit; cursor: pointer; color: var(--sw-color-text);
}
.lang-switch button[aria-current="true"] { background: var(--sw-color-primary-light); font-weight: 600; }
.lang-switch button[disabled] { opacity: 0.55; cursor: not-allowed; }

@media (max-width: 400px) {
  .lang-switch { font-size: 0.75rem; }
  .lang-switch button { padding: 2px 6px; }
  .nav-toggle { padding: var(--sw-space-2); }
  .nav-toggle__label { display: none; } /* icon only; aria-label="Menu" on the button keeps it accessible */
}

/* ---- Buttons ---- */
.btn {
  display: inline-block; padding: var(--sw-space-3) var(--sw-space-6);
  border-radius: var(--sw-radius); text-decoration: none; font-weight: 600;
  border: 2px solid transparent; transition: background var(--sw-transition), border-color var(--sw-transition);
}
.btn--primary { background: var(--sw-btn-primary-bg); color: var(--sw-btn-primary-fg); }
.btn--primary:hover { background: var(--sw-btn-primary-bg-hover); color: var(--sw-btn-primary-fg); }
.btn--accent  { background: var(--sw-btn-accent-bg); color: var(--sw-btn-accent-fg); }
.btn--accent:hover { background: var(--sw-btn-accent-bg-hover); color: var(--sw-btn-accent-fg); }
.btn--outline { background: transparent; border-color: var(--sw-color-primary); color: var(--sw-color-link); }
.btn--outline:hover { background: var(--sw-color-primary-light); }

/* ---- Cards ---- */
.card-grid { display: grid; gap: var(--sw-space-6); grid-template-columns: 1fr; }
@media (min-width: 640px)  { .card-grid--2 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 780px)  { .card-grid--3, .card-grid--4 { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 1024px) { .card-grid--3 { grid-template-columns: repeat(3, 1fr); } .card-grid--4 { grid-template-columns: repeat(4, 1fr); } }

.card {
  background: var(--sw-color-surface); border: 1px solid var(--sw-color-border);
  border-radius: var(--sw-radius-lg); padding: var(--sw-space-6);
}
.card__title { margin-bottom: var(--sw-space-2); }
.card a.card__link { text-decoration: none; color: inherit; display: block; }
.card a.card__link:hover .card__title { color: var(--sw-color-link); }

/* ---- Status badge ---- */
.badge {
  display: inline-block; font-size: 0.72rem; font-weight: 700; letter-spacing: 0.02em;
  text-transform: uppercase; padding: 2px 8px; border-radius: 999px; vertical-align: middle;
}
.badge--draft { background: var(--sw-color-surface-alt); color: var(--sw-color-text-muted); border: 1px solid var(--sw-color-border); }

/* ---- Notices ---- */
.notice {
  border-radius: var(--sw-radius); padding: var(--sw-space-4) var(--sw-space-6);
  border: 1px solid var(--sw-color-border); background: var(--sw-color-surface-alt);
}
.notice--safety {
  background: var(--sw-color-safety-bg); border-color: var(--sw-color-safety);
  color: var(--sw-color-text);
}
.notice--safety strong { color: var(--sw-color-safety); }

.pending-comment {
  border: 1px dashed var(--sw-color-border); border-radius: var(--sw-radius);
  padding: var(--sw-space-4); color: var(--sw-color-text-muted); font-size: 0.9rem;
}

/* ---- Understand topic disclosure ---- */
.topic-detail summary {
  cursor: pointer; list-style: none; display: flex; align-items: center; gap: var(--sw-space-3);
}
.topic-detail summary::-webkit-details-marker { display: none; }
.topic-detail summary::before { content: "+"; font-weight: 700; color: var(--sw-color-primary); width: 1em; }
.topic-detail[open] summary::before { content: "\2212"; }
.topic-detail > .stack { margin-top: var(--sw-space-4); padding-top: var(--sw-space-4); border-top: 1px solid var(--sw-color-border); }
.topic-detail ul { padding-left: 1.25em; }

/* ---- Interactive tools (Sprint 4) ---- */
.tool-card { }
.tool-card fieldset { border: none; padding: 0; margin: 0; }
.tool-card legend { font-weight: 600; padding: 0; margin-bottom: var(--sw-space-2); }
.choice-group { display: flex; flex-direction: column; gap: var(--sw-space-2); }
.choice {
  display: flex; align-items: center; gap: var(--sw-space-2);
  border: 1px solid var(--sw-color-border); border-radius: var(--sw-radius);
  padding: var(--sw-space-2) var(--sw-space-3); cursor: pointer;
}
.choice:has(input:checked) { border-color: var(--sw-color-primary); background: var(--sw-color-primary-light); }
.tool-textarea, .tool-input {
  width: 100%; font: inherit; padding: var(--sw-space-2) var(--sw-space-3);
  border: 1px solid var(--sw-color-border); border-radius: var(--sw-radius); background: var(--sw-color-surface); color: var(--sw-color-text);
}
.tool-result {
  border: 1px solid var(--sw-color-border); border-radius: var(--sw-radius-lg);
  padding: var(--sw-space-6); background: var(--sw-color-surface-alt); margin-top: var(--sw-space-4);
}

.grounding-step h4 { color: var(--sw-color-link); }

.breathing-stage { display: flex; flex-direction: column; align-items: center; gap: var(--sw-space-4); padding: var(--sw-space-8) 0; }
.breathing-circle {
  width: 120px; height: 120px; border-radius: 50%;
  background: var(--sw-color-primary-light); border: 3px solid var(--sw-color-primary);
  transition: transform 1s ease-in-out;
}
.breathing-circle.is-inhale { transform: scale(1.6); transition-duration: var(--breathing-inhale, 4s); }
.breathing-circle.is-hold   { transform: scale(1.6); }
.breathing-circle.is-exhale { transform: scale(1);   transition-duration: var(--breathing-exhale, 6s); }
.breathing-label { font-weight: 600; }

.planner-task-row { display: grid; grid-template-columns: 1fr auto auto; gap: var(--sw-space-2); align-items: center; margin-bottom: var(--sw-space-2); }
@media (max-width: 560px) { .planner-task-row { grid-template-columns: 1fr; } }

/* ---- Footer ---- */
.site-footer {
  border-top: 1px solid var(--sw-color-border); margin-top: var(--sw-space-16);
  padding: var(--sw-space-8) 0; background: var(--sw-color-surface);
}
.site-footer p { color: var(--sw-color-text-muted); font-size: 0.9rem; margin: 0 0 var(--sw-space-2); }
.site-footer .notice--safety { margin-bottom: var(--sw-space-4); }