/* ============================================
   AUHMS Marketing Site — Components
   Nav, Footer, Buttons, Cards, Badges, Forms
   ============================================ */

/* ========== NAVIGATION ========== */
.site-nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  height: var(--nav-height);
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  transition: background-color var(--transition-base), box-shadow var(--transition-base), backdrop-filter var(--transition-base);
}

.site-nav--scrolled {
  background: rgba(255, 255, 255, 0.92);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  box-shadow: 0 1px 0 var(--border-default);
}

.site-nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  max-width: var(--site-wide);
  margin: 0 auto;
  padding: 0 var(--space-6);
}

.site-nav__brand {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  flex-shrink: 0;
}

.site-nav__logo {
  width: 34px;
  height: 34px;
  background: var(--color-primary);
  border-radius: var(--radius-lg);
  position: relative;
  display: flex;
  align-items: center;
  justify-content: center;
}

.site-nav__logo::after {
  content: '';
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 14px;
  height: 14px;
  border: 2.5px solid rgba(255, 255, 255, 0.95);
  border-radius: 4px;
}

.site-nav__wordmark {
  font-size: var(--text-xl);
  font-weight: var(--font-bold);
  color: var(--text-heading);
  letter-spacing: var(--tracking-tight);
}

.site-nav__links {
  display: flex;
  align-items: center;
  gap: var(--space-2);
}

.site-nav__link {
  display: inline-flex;
  align-items: center;
  padding: var(--space-2) var(--space-4);
  font-size: var(--text-base);
  font-weight: var(--font-medium);
  color: var(--gray-500);
  border-radius: var(--radius-full);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.site-nav__link:hover {
  color: var(--text-heading);
}

.site-nav__link--active {
  color: var(--text-heading);
  font-weight: var(--font-semibold);
}

.site-nav__actions {
  display: flex;
  align-items: center;
  gap: var(--space-3);
}

/* Profile Dropdown */
.site-nav__profile {
  position: relative;
}

.site-nav__profile-btn {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 50%;
  color: var(--gray-600);
  background: var(--gray-100);
  border: 1px solid var(--gray-200);
  cursor: pointer;
  transition: all var(--transition-fast);
}

.site-nav__profile-btn:hover,
.site-nav__profile-btn[aria-expanded="true"] {
  color: var(--color-primary);
  background: var(--color-primary-bg);
  border-color: var(--color-primary-subtle);
}

.site-nav__profile-btn--avatar {
  background: var(--color-primary);
  color: #fff;
  border-color: var(--color-primary);
  font-size: 14px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.site-nav__profile-btn--avatar:hover,
.site-nav__profile-btn--avatar[aria-expanded="true"] {
  background: var(--color-primary-hover);
  border-color: var(--color-primary-hover);
  color: #fff;
}

.site-nav__profile-menu {
  display: none;
  position: absolute;
  top: calc(100% + 8px);
  right: 0;
  min-width: 200px;
  background: #fff;
  border: 1px solid var(--gray-200);
  border-radius: var(--radius-lg);
  box-shadow: 0 10px 40px rgba(0,0,0,0.10), 0 2px 8px rgba(0,0,0,0.06);
  padding: var(--space-2);
  z-index: calc(var(--z-dropdown, 100) + 1);
  opacity: 0;
  transform: translateY(-4px);
  transition: opacity 0.15s, transform 0.15s;
}

.site-nav__profile-menu.is-open {
  display: block;
  opacity: 1;
  transform: translateY(0);
}

.site-nav__profile-menu__label {
  padding: var(--space-2) var(--space-3);
  font-size: 12px;
  font-weight: 600;
  color: var(--gray-400);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.site-nav__profile-menu__item {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-2) var(--space-3);
  font-size: 14px;
  font-weight: 500;
  color: var(--gray-700);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: background-color var(--transition-fast), color var(--transition-fast);
}

.site-nav__profile-menu__item:hover {
  background: var(--gray-50);
  color: var(--text-heading);
}

.site-nav__profile-menu__item svg {
  width: 16px;
  height: 16px;
  color: var(--gray-400);
}

.site-nav__profile-menu__item:hover svg {
  color: var(--gray-600);
}

.site-nav__profile-menu__divider {
  height: 1px;
  background: var(--gray-100);
  margin: var(--space-1) 0;
}

.site-nav__profile-menu__item--danger {
  color: var(--color-danger);
}

.site-nav__profile-menu__item--danger:hover {
  background: var(--color-danger-bg);
  color: var(--color-danger-hover);
}

.site-nav__profile-menu__item--danger svg {
  color: var(--color-danger);
}

/* Mobile Menu Toggle */
.site-nav__toggle {
  display: none;
  width: 40px;
  height: 40px;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--gray-700);
  transition: background-color var(--transition-fast);
}

.site-nav__toggle:hover {
  background-color: var(--gray-100);
}

.site-nav__toggle svg {
  width: 24px;
  height: 24px;
}

/* Mobile Menu */
.site-nav__mobile {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(255, 255, 255, 0.98);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  z-index: var(--z-overlay);
  padding: var(--space-6);
  flex-direction: column;
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-slow), visibility var(--transition-slow);
}

.site-nav__mobile.is-open {
  opacity: 1;
  visibility: visible;
}

.site-nav__mobile-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-10);
}

.site-nav__mobile-close {
  width: 40px;
  height: 40px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--radius-md);
  color: var(--gray-700);
}

.site-nav__mobile-close svg {
  width: 24px;
  height: 24px;
}

.site-nav__mobile-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.site-nav__mobile-link {
  display: block;
  padding: var(--space-4) var(--space-3);
  font-size: var(--text-xl);
  font-weight: var(--font-medium);
  color: var(--text-heading);
  border-radius: var(--radius-md);
  transition: background-color var(--transition-fast);
}

.site-nav__mobile-link:hover {
  background-color: var(--gray-50);
}

.site-nav__mobile-actions {
  margin-top: auto;
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
  padding-top: var(--space-8);
  border-top: 1px solid var(--border-default);
}

/* Nav Responsive */
@media (max-width: 1024px) {
  .site-nav__links,
  .site-nav__actions .site-btn--ghost {
    display: none; /* legacy — kept for compatibility */
  }

  .site-nav__toggle {
    display: flex;
  }

  .site-nav__mobile {
    display: flex;
  }
}

@media (max-width: 768px) {
  .site-nav__actions .site-btn--sm {
    display: none;
  }
}


/* ========== BUTTONS ========== */
.site-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  font-family: var(--font-sans);
  font-weight: var(--font-semibold);
  white-space: nowrap;
  border-radius: var(--radius-full);
  transition: all var(--transition-fast);
  border: 1px solid transparent;
  cursor: pointer;
  text-decoration: none;
  line-height: 1;
}

.site-btn:focus-visible {
  outline: 2px solid var(--color-primary-light);
  outline-offset: 2px;
}

/* Sizes */
.site-btn--sm {
  height: 38px;
  padding: 0 var(--space-5);
  font-size: var(--text-sm);
}

.site-btn--md {
  height: 44px;
  padding: 0 var(--space-6);
  font-size: var(--text-base);
}

.site-btn--lg {
  height: 50px;
  padding: 0 var(--space-8);
  font-size: var(--text-md);
}

.site-btn--xl {
  height: 56px;
  padding: 0 var(--space-10);
  font-size: var(--text-lg);
}

/* Variants */
.site-btn--primary {
  background-color: var(--color-primary);
  color: var(--text-on-primary);
  box-shadow: 0 1px 2px rgba(79, 70, 229, 0.3), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.site-btn--primary:hover {
  background-color: var(--color-primary-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(79, 70, 229, 0.35), inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.site-btn--primary:active {
  background-color: var(--color-primary-active);
  transform: translateY(0);
  box-shadow: 0 1px 2px rgba(79, 70, 229, 0.3);
}

.site-btn--secondary {
  background-color: var(--bg-site);
  color: var(--text-heading);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-xs);
}

.site-btn--secondary:hover {
  background-color: var(--gray-50);
  border-color: var(--gray-400);
  transform: translateY(-1px);
  box-shadow: var(--shadow-sm);
}

.site-btn--ghost {
  background: transparent;
  color: var(--gray-700);
  border-color: var(--border-default);
}

.site-btn--ghost:hover {
  background: var(--gray-50);
  color: var(--text-heading);
  border-color: var(--border-strong);
}

.site-btn--outline {
  background: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.site-btn--outline:hover {
  background: var(--color-primary-bg);
  transform: translateY(-1px);
}

.site-btn--outline-inverse {
  background: transparent;
  color: white;
  border-color: rgba(255, 255, 255, 0.3);
}

.site-btn--outline-inverse:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: rgba(255, 255, 255, 0.5);
  transform: translateY(-1px);
}

.site-btn--white {
  background: #FFFFFF;
  color: var(--text-heading);
  box-shadow: var(--shadow-sm);
}

.site-btn--white:hover {
  background: var(--gray-50);
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

/* Button icon */
.site-btn svg {
  width: 18px;
  height: 18px;
  flex-shrink: 0;
}

.site-btn--icon-only {
  padding: 0;
  width: 44px;
}


/* ========== CARDS ========== */
.site-card {
  background: var(--bg-card);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-xl);
  padding: var(--space-8);
  transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

.site-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-card-hover);
}

.site-card--lift:hover {
  transform: translateY(-2px);
}

.site-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-5);
  background: var(--color-primary-bg);
  color: var(--color-primary);
}

.site-card__icon svg {
  width: 24px;
  height: 24px;
}

.site-card__icon--success { background: var(--color-success-bg); color: var(--color-success); }
.site-card__icon--info { background: var(--color-info-bg); color: var(--color-info); }
.site-card__icon--warning { background: var(--color-warning-bg); color: var(--color-warning); }

.site-card__title {
  font-size: var(--text-lg);
  font-weight: var(--font-semibold);
  color: var(--text-heading);
  margin-bottom: var(--space-3);
}

.site-card__desc {
  font-size: var(--text-base);
  color: var(--text-body);
  line-height: var(--leading-relaxed);
}

.site-card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--color-primary);
  margin-top: var(--space-5);
  transition: gap var(--transition-fast);
}

.site-card__link:hover {
  gap: var(--space-3);
}

.site-card__link svg {
  width: 16px;
  height: 16px;
}

/* Dark section cards */
.site-section--dark .site-card {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.1);
}

.site-section--dark .site-card:hover {
  background: rgba(255, 255, 255, 0.08);
  border-color: rgba(255, 255, 255, 0.2);
}

.site-section--dark .site-card__title {
  color: var(--text-inverse);
}

.site-section--dark .site-card__desc {
  color: var(--gray-400);
}


/* ========== BADGES ========== */
.site-badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-3);
  font-size: var(--text-xs);
  font-weight: var(--font-semibold);
  letter-spacing: var(--tracking-wide);
  border-radius: var(--radius-full);
  text-transform: uppercase;
}

.site-badge--primary {
  background: var(--color-primary-bg);
  color: var(--color-primary);
  border: 1px solid var(--color-primary-subtle);
}

.site-badge--success {
  background: var(--color-success-bg);
  color: var(--color-success);
  border: 1px solid var(--color-success-subtle);
}

.site-badge--dark {
  background: var(--gray-800);
  color: var(--gray-200);
}

.site-badge--outline {
  background: transparent;
  color: var(--gray-600);
  border: 1px solid var(--border-strong);
}


/* ========== FORM ELEMENTS ========== */
.site-form-group {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}

.site-label {
  font-size: var(--text-sm);
  font-weight: var(--font-medium);
  color: var(--text-heading);
}

.site-label--required::after {
  content: ' *';
  color: var(--color-danger);
}

.site-input,
.site-select,
.site-textarea {
  width: 100%;
  height: 44px;
  padding: 0 var(--space-4);
  font-size: var(--text-base);
  color: var(--text-heading);
  background: var(--bg-input);
  border: 1px solid var(--border-input);
  border-radius: var(--radius-lg);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.site-input:focus,
.site-select:focus,
.site-textarea:focus {
  outline: none;
  border-color: var(--border-focus);
  box-shadow: 0 0 0 3px rgba(79, 70, 229, 0.1);
}

.site-input::placeholder,
.site-textarea::placeholder {
  color: var(--gray-400);
}

.site-textarea {
  height: auto;
  min-height: 120px;
  padding: var(--space-3) var(--space-4);
  resize: vertical;
}

.site-select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' viewBox='0 0 24 24' fill='none' stroke='%2394A3B8' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 12px center;
  padding-right: 40px;
}

.site-form-hint {
  font-size: var(--text-xs);
  color: var(--text-muted);
}

.site-form-error {
  font-size: var(--text-xs);
  color: var(--color-danger);
  display: none;
}

.site-form-group--error .site-input,
.site-form-group--error .site-select,
.site-form-group--error .site-textarea {
  border-color: var(--color-danger);
}

.site-form-group--error .site-form-error {
  display: block;
}

/* Two column form layout */
.site-form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-5);
}

@media (max-width: 768px) {
  .site-form-row {
    grid-template-columns: 1fr;
  }
}


/* ========== FOOTER ========== */
.site-footer {
  background: var(--bg-section-dark);
  color: var(--gray-300);
  padding: var(--space-20) 0 var(--space-8);
}

.site-footer__grid {
  display: grid;
  grid-template-columns: 1.5fr 1fr 1fr 1fr;
  gap: var(--space-12);
  margin-bottom: var(--space-16);
}

.site-footer__brand-desc {
  font-size: var(--text-sm);
  color: var(--gray-400);
  line-height: var(--leading-relaxed);
  margin-top: var(--space-4);
  max-width: 280px;
}

.site-footer__heading {
  font-size: var(--text-sm);
  font-weight: var(--font-semibold);
  color: var(--text-inverse);
  text-transform: uppercase;
  letter-spacing: var(--tracking-wider);
  margin-bottom: var(--space-5);
}

.site-footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}

.site-footer__link {
  font-size: var(--text-sm);
  color: var(--gray-400);
  transition: color var(--transition-fast);
}

.site-footer__link:hover {
  color: var(--text-inverse);
}

.site-footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding-top: var(--space-8);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
}

.site-footer__copyright {
  font-size: var(--text-sm);
  color: var(--gray-500);
}

.site-footer__social {
  display: flex;
  align-items: center;
  gap: var(--space-4);
}

.site-footer__social-link {
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--gray-500);
  border-radius: var(--radius-md);
  transition: color var(--transition-fast), background-color var(--transition-fast);
}

.site-footer__social-link:hover {
  color: var(--text-inverse);
  background-color: rgba(255, 255, 255, 0.1);
}

.site-footer__social-link svg {
  width: 20px;
  height: 20px;
}

.site-footer .site-nav__wordmark {
  color: var(--text-inverse);
}

/* Footer Responsive */
@media (max-width: 1024px) {
  .site-footer__grid {
    grid-template-columns: 1fr 1fr;
    gap: var(--space-10);
  }
}

@media (max-width: 768px) {
  .site-footer__grid {
    grid-template-columns: 1fr;
    gap: var(--space-8);
  }

  .site-footer__bottom {
    flex-direction: column;
    gap: var(--space-4);
    text-align: center;
  }
}


/* ========== ANNOUNCEMENT PILL ========== */
.site-announce {
  text-align: center;
  padding: var(--space-4) var(--space-4) 0;
  position: relative;
  z-index: calc(var(--z-nav) + 1);
  display: none;
}

.site-announce__pill {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  padding: var(--space-1) var(--space-4) var(--space-1) var(--space-1);
  background: var(--gray-50);
  border: 1px solid var(--border-default);
  border-radius: var(--radius-full);
  font-size: var(--text-sm);
  color: var(--gray-600);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  text-decoration: none;
}

.site-announce__pill:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.site-announce__tag {
  display: inline-flex;
  align-items: center;
  padding: var(--space-1) var(--space-3);
  background: var(--color-primary);
  color: var(--text-on-primary);
  font-size: var(--text-xs);
  font-weight: var(--font-bold);
  border-radius: var(--radius-full);
  letter-spacing: var(--tracking-wide);
  text-transform: uppercase;
}

.site-announce__arrow {
  margin-left: var(--space-1);
  color: var(--gray-400);
  transition: transform var(--transition-fast);
}

.site-announce__pill:hover .site-announce__arrow {
  transform: translateX(2px);
  color: var(--color-primary);
}