/* ==========================================================================
   CUCSR — Components: buttons, header, footer, cards, accordion, tabs, forms
   ========================================================================== */

/* ---- Buttons ---- */
.btn {
  position: relative;
  display: inline-flex;
  align-items: center;
  gap: var(--sp-2);
  padding: 0.85rem 1.6rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  font-size: var(--fs-sm);
  white-space: nowrap;
  transition: transform var(--dur-fast) var(--ease-out), box-shadow var(--dur-fast) var(--ease-out);
}
.btn:active { transform: translateY(1px); }

.btn-primary {
  background: var(--color-navy-700);
  color: var(--color-white);
}
.btn-primary:hover { box-shadow: 0 10px 24px -8px rgba(27, 58, 92, 0.55); }

.btn-amber {
  background: var(--color-amber);
  color: var(--color-navy-900);
}
.btn-amber:hover { box-shadow: 0 10px 24px -8px rgba(232, 163, 61, 0.55); }

.btn-ghost {
  background: transparent;
  color: var(--color-navy-700);
  border: 1.5px solid var(--color-line);
}
.btn-ghost:hover { border-color: var(--color-navy-700); }

.btn-text {
  color: var(--color-navy-700);
  font-weight: 600;
  padding: 0;
  position: relative;
}
.btn-text::after {
  content: '';
  position: absolute; left: 0; bottom: -2px;
  width: 100%; height: 1.5px;
  background: currentColor;
  transform: scaleX(0);
  transform-origin: right;
  transition: transform var(--dur-base) var(--ease-out);
}
.btn-text:hover::after { transform: scaleX(1); transform-origin: left; }

/* ---- Header ---- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(243, 245, 244, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid transparent;
  transition: border-color var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), padding var(--dur-base) var(--ease-out);
}
.site-header.is-scrolled {
  border-color: var(--color-line);
  box-shadow: 0 6px 24px -18px rgba(16, 24, 31, 0.4);
}

.header-inner {
  max-width: var(--container-w);
  margin-inline: auto;
  padding: var(--sp-3) var(--sp-4);
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: var(--sp-4);
}

.logo {
  font-family: var(--font-display);
  font-weight: 700;
  font-size: var(--fs-lg);
  color: var(--color-navy-900);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  justify-self: start;
}
.logo-mark {
  width: 30px; height: 30px;
  border-radius: 50%;
  background: conic-gradient(from 210deg, var(--color-navy-700), var(--color-amber), var(--color-teal), var(--color-navy-700));
}

.main-nav {
  display: contents;
}

/* Home / Services as a pill-style segmented control, centered in the header */
.nav-links {
  display: flex;
  align-items: center;
  gap: 0.25rem;
  justify-self: center;
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: 999px;
  padding: 0.3rem;
}
.nav-links a {
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-muted);
  position: relative;
  padding: 0.5rem 1.1rem;
  border-radius: 999px;
  transition: color var(--dur-fast) var(--ease-out), background var(--dur-fast) var(--ease-out);
}
.nav-links a:hover { color: var(--color-navy-900); }
.nav-links a.is-active {
  color: var(--color-white);
  background: var(--color-navy-700);
}

.nav-cta { display: flex; align-items: center; justify-content: flex-end; justify-self: end; gap: var(--sp-3); }

.nav-toggle {
  display: none;
  width: 40px; height: 40px;
  align-items: center; justify-content: center;
}
.nav-toggle span, .nav-toggle::before, .nav-toggle::after {
  content: '';
  display: block;
  width: 22px; height: 2px;
  background: var(--color-navy-900);
  transition: transform var(--dur-base) var(--ease-out), opacity var(--dur-base) var(--ease-out);
}
.nav-toggle span { margin: 5px 0; }
.nav-toggle[aria-expanded="true"] span { opacity: 0; }
.nav-toggle[aria-expanded="true"]::before { transform: translateY(7px) rotate(45deg); }
.nav-toggle[aria-expanded="true"]::after { transform: translateY(-7px) rotate(-45deg); }

@media (max-width: 900px) {
  .header-inner { grid-template-columns: auto 1fr auto; }
  .nav-toggle { display: inline-flex; justify-self: end; }
  .main-nav {
    display: flex;
    position: fixed;
    inset: 0 0 0 30%;
    background: var(--color-navy-900);
    flex-direction: column;
    align-items: flex-start;
    justify-content: center;
    padding: var(--sp-6);
    transform: translateX(100%);
    transition: transform var(--dur-slow) var(--ease-out);
    z-index: 90;
  }
  .main-nav.is-open { transform: translateX(0); }
  .nav-links {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--sp-1);
    background: none;
    border: none;
    padding: 0;
    width: 100%;
  }
  .nav-links a {
    width: 100%;
    color: rgba(255,255,255,0.75);
    font-size: var(--fs-lg);
    padding-block: 0.6rem;
  }
  .nav-links a:hover, .nav-links a.is-active { color: var(--color-white); background: none; }
  .nav-links li {
    width: 100%;
    opacity: 0; transform: translateY(8px);
    transition: opacity var(--dur-base) var(--ease-out), transform var(--dur-base) var(--ease-out);
  }
  .main-nav.is-open .nav-links li { opacity: 1; transform: translateY(0); }
  .nav-cta { justify-content: flex-start; margin-top: var(--sp-5); }
}

@media (min-width: 901px) {
  .main-nav { display: contents; }
}

/* ---- Footer ---- */
.site-footer {
  background: var(--color-navy-900);
  color: rgba(255,255,255,0.7);
  padding-block: var(--sp-7) var(--sp-4);
}
.footer-grid {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: var(--sp-6);
  padding-bottom: var(--sp-6);
  border-bottom: 1px solid rgba(255,255,255,0.12);
}
.footer-grid h4 { color: var(--color-white); margin-bottom: var(--sp-3); font-size: var(--fs-sm); }
.footer-grid p { color: rgba(255,255,255,0.6); }
.footer-links li { margin-bottom: var(--sp-2); }
.footer-links a { color: rgba(255,255,255,0.65); font-size: var(--fs-sm); transition: color var(--dur-fast); }
.footer-links a:hover { color: var(--color-amber); }
.footer-bottom {
  display: flex; justify-content: space-between; align-items: center;
  padding-top: var(--sp-4); font-size: var(--fs-xs); color: rgba(255,255,255,0.45);
  flex-wrap: wrap; gap: var(--sp-2);
}
.social-row { display: flex; gap: var(--sp-2); margin-top: var(--sp-3); }
.social-row a {
  width: 34px; height: 34px; border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.2);
  display: flex; align-items: center; justify-content: center;
  transition: border-color var(--dur-fast), background var(--dur-fast);
}
.social-row a:hover { background: var(--color-amber); border-color: var(--color-amber); }

@media (max-width: 800px) {
  .footer-grid { grid-template-columns: 1fr 1fr; }
}

/* ---- Cards ---- */
.card {
  background: var(--color-white);
  border: 1px solid var(--color-line);
  border-radius: var(--radius-md);
  padding: var(--sp-4);
  transition: transform var(--dur-base) var(--ease-out), box-shadow var(--dur-base) var(--ease-out), border-color var(--dur-base);
}
.card:hover { transform: translateY(-4px); box-shadow: var(--shadow-lift); border-color: transparent; }
.card h4 { margin-bottom: var(--sp-1); }
.card p { font-size: var(--fs-sm); }

.card-icon {
  width: 44px; height: 44px;
  border-radius: var(--radius-sm);
  background: var(--color-teal-light);
  color: var(--color-teal);
  display: flex; align-items: center; justify-content: center;
  margin-bottom: var(--sp-3);
}

/* ---- Pills / tags ---- */
.pill-row { display: flex; flex-wrap: wrap; gap: var(--sp-2); }
.pill {
  padding: 0.5rem 1rem;
  border-radius: 999px;
  border: 1px solid var(--color-line);
  background: var(--color-white);
  font-size: var(--fs-sm);
  color: var(--color-navy-800);
  transition: border-color var(--dur-fast), background var(--dur-fast);
}
.pill:hover { border-color: var(--color-amber); background: #fdf6ea; }

/* ---- Stat counters ---- */
.stat-row { display: flex; gap: var(--sp-7); flex-wrap: wrap; }
.stat .stat-num {
  font-family: var(--font-display);
  font-size: var(--fs-2xl);
  font-weight: 700;
  color: var(--color-navy-900);
  display: flex; align-items: baseline; gap: 2px;
}
.stat .stat-label { font-size: var(--fs-sm); color: var(--color-muted); }

/* ---- Checklist ---- */
.check-list li {
  display: flex; gap: var(--sp-2); align-items: flex-start;
  padding-block: var(--sp-2);
  border-bottom: 1px solid var(--color-line);
}
.check-list li:last-child { border-bottom: none; }
.check-list .check-mark {
  flex: none; width: 20px; height: 20px; margin-top: 2px;
  border-radius: 50%;
  background: var(--color-teal-light);
  color: var(--color-teal);
  display: flex; align-items: center; justify-content: center;
}

/* ---- Accordion ---- */
.accordion-item { border-bottom: 1px solid var(--color-line); }
.accordion-trigger {
  width: 100%;
  display: flex; align-items: center; justify-content: space-between;
  gap: var(--sp-3);
  padding-block: var(--sp-3);
  text-align: left;
  font-family: var(--font-display);
  font-size: var(--fs-md);
  color: var(--color-navy-900);
  font-weight: 600;
}
.accordion-icon {
  flex: none; width: 22px; height: 22px;
  position: relative;
}
.accordion-icon::before, .accordion-icon::after {
  content: ''; position: absolute; top: 50%; left: 50%;
  background: var(--color-navy-700);
  transform: translate(-50%, -50%);
  transition: transform var(--dur-base) var(--ease-out);
}
.accordion-icon::before { width: 14px; height: 2px; }
.accordion-icon::after { width: 2px; height: 14px; }
.accordion-trigger[aria-expanded="true"] .accordion-icon::after { transform: translate(-50%, -50%) rotate(90deg); opacity: 0; }

.accordion-panel {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--dur-slow) var(--ease-out);
}
.accordion-panel-inner { padding-bottom: var(--sp-3); }
.accordion-panel p { font-size: var(--fs-sm); }

/* ---- Tabs (services page sub-nav) ---- */
.tab-bar {
  position: sticky;
  top: 72px;
  z-index: 40;
  display: flex;
  gap: var(--sp-1);
  overflow-x: auto;
  background: var(--color-paper);
  padding-block: var(--sp-3);
  border-bottom: 1px solid var(--color-line);
  scrollbar-width: none;
}
.tab-bar::-webkit-scrollbar { display: none; }
.tab-btn {
  flex: none;
  padding: 0.6rem 1.1rem;
  border-radius: 999px;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-muted);
  border: 1px solid transparent;
  transition: all var(--dur-fast) var(--ease-out);
}
.tab-btn:hover { color: var(--color-navy-900); }
.tab-btn.is-active {
  background: var(--color-navy-700);
  color: var(--color-white);
}

/* ---- Timeline / process stepper ---- */
.timeline {
  display: grid;
  grid-auto-flow: column;
  grid-auto-columns: 200px;
  gap: var(--sp-5);
  overflow-x: auto;
  padding-bottom: var(--sp-4);
  position: relative;
}
.timeline::before {
  content: '';
  position: absolute; top: 22px; left: 0; right: 0;
  height: 2px;
  background: var(--color-line);
}
.timeline-step { position: relative; padding-top: var(--sp-6); }
.timeline-step .step-node {
  position: absolute; top: 12px; left: 0;
  width: 22px; height: 22px; border-radius: 50%;
  background: var(--color-white);
  border: 2px solid var(--color-navy-700);
  display: flex; align-items: center; justify-content: center;
  font-size: 11px; font-weight: 700; color: var(--color-navy-700);
}
.timeline-step h4 { font-size: var(--fs-base); margin-bottom: 4px; }
.timeline-step p { font-size: var(--fs-xs); }

@media (max-width: 700px) {
  .timeline { grid-auto-flow: row; grid-auto-columns: unset; gap: var(--sp-4); }
  .timeline::before { top: 0; bottom: 0; left: 10px; right: auto; width: 2px; height: auto; }
  .timeline-step { padding-top: 0; padding-left: var(--sp-5); }
  .timeline-step .step-node { top: 0; left: -1px; }
}

/* ---- Forms ---- */
.form-row { display: grid; gap: var(--sp-4); margin-bottom: var(--sp-4); }
.form-row.cols-2 { grid-template-columns: 1fr 1fr; }
@media (max-width: 640px) { .form-row.cols-2 { grid-template-columns: 1fr; } }

.field label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: 500;
  color: var(--color-navy-900);
  margin-bottom: 0.4rem;
}
.field input, .field select, .field textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  border: 1.5px solid var(--color-line);
  border-radius: var(--radius-sm);
  background: var(--color-white);
  transition: border-color var(--dur-fast) var(--ease-out);
}
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--color-navy-700);
  outline: none;
}
.field textarea { min-height: 130px; resize: vertical; }
.field .field-error {
  display: none;
  font-size: var(--fs-xs);
  color: #b3432f;
  margin-top: 0.35rem;
}
.field.has-error input, .field.has-error select, .field.has-error textarea { border-color: #b3432f; }
.field.has-error .field-error { display: block; }

.form-status {
  display: none;
  padding: var(--sp-3);
  border-radius: var(--radius-sm);
  background: var(--color-teal-light);
  color: var(--color-teal);
  font-size: var(--fs-sm);
  font-weight: 500;
  margin-top: var(--sp-3);
}
.form-status.is-visible { display: block; }