/* ==========================================================================
   components.css — reusable UI components
   ========================================================================== */

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: var(--text-base);
  border: 1px solid transparent;
  transition: background-color var(--transition-fast), color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast);
}
.btn:hover { transform: translateY(-1px); }
.btn:active { transform: translateY(0); }

.btn--primary {
  background: var(--color-accent);
  color: #0F172A;
}
.btn--primary:hover { background: var(--color-accent-hover); }

.btn--secondary {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}
.btn--secondary:hover { background: var(--color-bg-subtle); }

.btn--sm { padding: var(--space-2) var(--space-4); font-size: var(--text-sm); }
.btn--block { width: 100%; }

/* ---------- Hero ---------- */
.hero {
  padding-block: var(--space-16);
  text-align: center;
}
.hero h1 {
  font-size: var(--text-3xl);
  max-width: 20ch;
  margin-inline: auto;
}
@media (min-width: 768px) {
  .hero h1 { font-size: var(--text-4xl); }
}
.hero__subhead {
  margin-top: var(--space-4);
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 60ch;
  margin-inline: auto;
}
.hero__actions {
  margin-top: var(--space-8);
  display: flex;
  gap: var(--space-4);
  justify-content: center;
  flex-wrap: wrap;
}

/* ---------- Trust bar ---------- */
.trust-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: var(--space-3);
  padding-block: var(--space-6);
}
.trust-bar__item {
  font-size: var(--text-sm);
  font-weight: 600;
  color: var(--color-text-muted);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-pill);
  padding: var(--space-2) var(--space-4);
}

/* ---------- Cards ---------- */
.card {
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-6);
  transition: transform var(--transition-fast), box-shadow var(--transition-fast);
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(15, 23, 42, 0.08);
}
a.card { cursor: pointer; }
/* Non-interactive informational cards (e.g. skill/tech display panels) — no hover lift, since there's nothing to click through to */
.card--static:hover { transform: none; box-shadow: none; }
.card h3 { font-size: var(--text-lg); }
.card p { color: var(--color-text-muted); font-size: var(--text-sm); }
.card__meta {
  margin-top: auto;
  padding-top: var(--space-3);
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: flex;
  gap: var(--space-3);
}

/* ---------- Tag / category pills ---------- */
.pill {
  display: inline-block;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.03em;
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-pill);
  background: color-mix(in srgb, var(--color-primary) 12%, transparent);
  color: var(--color-primary);
  width: fit-content;
}
.pill--accent {
  background: color-mix(in srgb, var(--color-accent) 16%, transparent);
  color: var(--color-accent-hover);
}

/* ---------- Callout boxes ---------- */
.callout {
  display: flex;
  gap: var(--space-3);
  padding: var(--space-4);
  border-left: 4px solid var(--color-info);
  background: var(--color-bg-subtle);
  border-radius: 0 var(--radius-md) var(--radius-md) 0;
}
.callout--warning { border-left-color: var(--color-warning); }
.callout--error { border-left-color: var(--color-error); }
.callout--success { border-left-color: var(--color-success); }
.callout__icon { flex-shrink: 0; }
.callout p:first-child { font-weight: 700; margin-bottom: var(--space-1); }

/* ---------- Code blocks ---------- */
.code-block {
  background: var(--color-bg-code);
  color: var(--color-code-text);
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-block: var(--space-4);
}
.code-block__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-2) var(--space-4);
  border-bottom: 1px solid rgba(255,255,255,0.08);
  font-size: var(--text-xs);
  color: #94A3B8;
}
.code-block pre {
  margin: 0;
  padding: var(--space-4);
  overflow-x: auto;
  line-height: 1.5;
}
.code-block code { background: none; border: none; padding: 0; }
.copy-btn {
  background: transparent;
  border: 1px solid rgba(255,255,255,0.15);
  color: #E2E8F0;
  border-radius: var(--radius-sm);
  padding: var(--space-1) var(--space-2);
  font-size: var(--text-xs);
}
.copy-btn:hover { background: rgba(255,255,255,0.08); }

/* ---------- FAQ accordion ---------- */
.accordion-item {
  border-bottom: 1px solid var(--color-border);
}
.accordion-trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  padding: var(--space-4) 0;
  background: transparent;
  border: none;
  text-align: left;
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
}
.accordion-trigger .chevron {
  flex-shrink: 0;
  transition: transform var(--transition-panel);
}
.accordion-trigger[aria-expanded="true"] .chevron { transform: rotate(180deg); }
.accordion-panel {
  overflow: hidden;
  max-height: 0;
  transition: max-height var(--transition-panel);
}
.accordion-panel__inner {
  padding-bottom: var(--space-4);
  color: var(--color-text-muted);
}

/* ---------- Author bio block ---------- */
.author-bio {
  display: flex;
  align-items: center;
  gap: var(--space-4);
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-4);
  margin-block: var(--space-8);
}
.author-bio__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: var(--color-primary);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 700;
  flex-shrink: 0;
}
.author-bio strong { display: block; }
.author-bio span { font-size: var(--text-sm); color: var(--color-text-muted); }
.author-bio a { color: var(--color-primary); font-size: var(--text-sm); font-weight: 600; }

/* ---------- Newsletter / CTA banner ---------- */
.cta-banner {
  background: var(--color-bg-subtle);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  padding: var(--space-8);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-6);
}
.cta-banner__text h2 { font-size: var(--text-xl); }
.cta-banner__text p { color: var(--color-text-muted); margin-top: var(--space-1); }

.subscribe-form {
  display: flex;
  gap: var(--space-2);
  flex-wrap: wrap;
}
.subscribe-form input[type="email"] {
  min-width: 240px;
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
}
.subscribe-form input[type="email"]:focus { border-color: var(--color-primary); }
.form-note { font-size: var(--text-xs); color: var(--color-text-muted); margin-top: var(--space-2); }

/* ---------- Forms (contact page) ---------- */
.form-field { display: flex; flex-direction: column; gap: var(--space-2); }
.form-field label { font-size: var(--text-sm); font-weight: 600; }
.form-field input,
.form-field select,
.form-field textarea {
  padding: var(--space-3) var(--space-4);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  width: 100%;
}
.form-field textarea { resize: vertical; min-height: 140px; }
.form-field input:focus,
.form-field select:focus,
.form-field textarea:focus { border-color: var(--color-primary); }
.form-status {
  padding: var(--space-3) var(--space-4);
  border-radius: var(--radius-sm);
  font-size: var(--text-sm);
  display: none;
}
.form-status.is-success { display: block; background: color-mix(in srgb, var(--color-success) 15%, transparent); color: var(--color-success); }
.form-status.is-error { display: block; background: color-mix(in srgb, var(--color-error) 15%, transparent); color: var(--color-error); }

/* ---------- Breadcrumbs ---------- */
.breadcrumbs {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  padding-block: var(--space-4);
}
.breadcrumbs a { color: var(--color-text-muted); }
.breadcrumbs a:hover { color: var(--color-primary); }
.breadcrumbs span[aria-current="page"] { color: var(--color-text); }

/* ---------- Theme toggle ---------- */
.theme-toggle {
  width: 40px;
  height: 40px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  background: transparent;
}
.theme-toggle:hover { background: var(--color-bg-subtle); }
.theme-toggle .icon-moon { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-sun { display: none; }
:root[data-theme="dark"] .theme-toggle .icon-moon { display: block; }

/* ---------- Coming soon ---------- */
.coming-soon {
  text-align: center;
  padding-block: var(--space-16);
}
.coming-soon .pill { margin-inline: auto; }
.coming-soon h1 { margin-top: var(--space-4); }
.coming-soon p { margin-top: var(--space-4); color: var(--color-text-muted); max-width: 60ch; margin-inline: auto; }
.coming-soon .subscribe-form { justify-content: center; margin-top: var(--space-6); }
.coming-soon .back-links { margin-top: var(--space-8); font-size: var(--text-sm); }

/* ---------- 404 ---------- */
.error-page { text-align: center; padding-block: var(--space-16); }
.error-page .error-code { font-size: var(--text-4xl); font-weight: 700; color: var(--color-accent); }
.error-page nav { margin-top: var(--space-8); display: flex; gap: var(--space-4); justify-content: center; flex-wrap: wrap; }