/**
 * ACG Native Solutions - Reusable Components
 * Buttons, cards, navigation
 */

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  min-width: 44px;
  padding: var(--space-3) var(--space-6);
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 500;
  line-height: 1;
  border: 2px solid transparent;
  border-radius: var(--radius-pill);
  cursor: pointer;
  transition: background-color var(--transition-base), color var(--transition-base);
}

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

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn-primary {
  background-color: var(--color-accent);
  color: white;
}

.btn-primary:hover:not(:disabled) {
  background-color: var(--color-accent-hover);
}

.btn-outline {
  background-color: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn-outline:hover:not(:disabled) {
  background-color: var(--color-primary);
  color: white;
}

/* Dark page button overrides */
.page-dark .btn:focus-visible {
  outline-color: var(--color-accent);
}

.page-dark .btn-primary {
  border: 2px solid var(--color-dark-border);
  box-shadow:
    0 8px 32px rgba(255, 255, 255, 0.04),
    inset 0 -1px 0 var(--color-dark-border-glow);
}

.page-dark .btn-outline {
  color: var(--color-dark-text);
  border-color: var(--color-dark-border);
}

.page-dark .btn-outline:hover:not(:disabled) {
  background-color: var(--color-dark-surface);
  color: var(--color-dark-text);
}

/* Glow Button — teal gradient fill with accent-colored glow */
.btn-glow {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 56px;
  padding: var(--space-4) var(--space-10);
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 600;
  color: white;
  border: none;
  border-radius: var(--radius-pill);
  cursor: pointer;
  position: relative;
  background: linear-gradient(
    135deg,
    #22d3ee 0%,
    #0891b2 45%,
    #065a73 100%
  );
  box-shadow:
    0 8px 24px rgba(8, 145, 178, 0.4),
    0 16px 48px rgba(8, 145, 178, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
  transition:
    transform 200ms ease,
    box-shadow 200ms ease;
  text-decoration: none;
}

.btn-glow:hover {
  color: #b2f5ea;
  transform: translateY(-2px);
  box-shadow:
    0 12px 32px rgba(8, 145, 178, 0.5),
    0 20px 56px rgba(8, 145, 178, 0.25),
    inset 0 1px 0 rgba(255, 255, 255, 0.2);
}

.btn-glow:active {
  transform: translateY(0);
  box-shadow:
    0 4px 16px rgba(8, 145, 178, 0.35),
    0 8px 32px rgba(8, 145, 178, 0.15),
    inset 0 1px 0 rgba(255, 255, 255, 0.1);
}

.btn-glow:focus-visible {
  outline: 2px solid white;
  outline-offset: 3px;
}

.btn-glow--lg {
  min-height: 64px;
  padding: var(--space-5) var(--space-12);
  font-size: var(--text-xl);
  border-radius: var(--radius-pill);
  box-shadow:
    0 10px 32px rgba(8, 145, 178, 0.45),
    0 20px 56px rgba(8, 145, 178, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.15);
}

.btn-glow--sm {
  min-height: 44px;
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
  border-radius: var(--radius-pill);
}

.btn-glow--outline {
  background: transparent;
  border: 2px solid var(--color-accent);
  box-shadow:
    0 8px 24px rgba(8, 145, 178, 0.25),
    0 16px 48px rgba(8, 145, 178, 0.1);
}

.btn-glow--outline:hover {
  color: #b2f5ea;
  background: linear-gradient(
    135deg,
    rgba(8, 145, 178, 0.15) 0%,
    rgba(8, 145, 178, 0.05) 100%
  );
  box-shadow:
    0 12px 32px rgba(8, 145, 178, 0.35),
    0 20px 56px rgba(8, 145, 178, 0.15);
}

/* Glass Button — dark glassmorphic pill from reference graphic */
.btn-glass {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-3);
  min-height: 56px;
  padding: var(--space-4) var(--space-10);
  font-family: var(--font-body);
  font-size: var(--text-lg);
  font-weight: 500;
  color: rgba(255, 255, 255, 0.9);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.03) 0%,
    rgba(255, 255, 255, 0.06) 100%
  );
  border: 2px solid var(--color-dark-border);
  border-radius: var(--radius-pill);
  cursor: pointer;
  position: relative;
  box-shadow:
    0 8px 32px rgba(255, 255, 255, 0.04),
    inset 0 -1px 0 rgba(255, 255, 255, 0.08);
  transition:
    border-color 200ms ease,
    background 200ms ease,
    box-shadow 200ms ease,
    color 200ms ease;
  text-decoration: none;
}

.btn-glass:hover {
  color: #ffffff;
  border-color: var(--color-dark-border-hover);
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.04) 0%,
    rgba(255, 255, 255, 0.09) 100%
  );
  box-shadow:
    0 12px 40px rgba(255, 255, 255, 0.06),
    inset 0 -1px 0 rgba(255, 255, 255, 0.12);
}

.btn-glass:active {
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.02) 0%,
    rgba(255, 255, 255, 0.05) 100%
  );
  box-shadow:
    0 4px 16px rgba(255, 255, 255, 0.03),
    inset 0 -1px 0 rgba(255, 255, 255, 0.06);
}

.btn-glass:focus-visible {
  outline: 2px solid white;
  outline-offset: 3px;
}

.btn-glass--lg {
  min-height: 64px;
  padding: var(--space-5) var(--space-12);
  font-size: var(--text-xl);
}

.btn-glass--sm {
  min-height: 44px;
  padding: var(--space-3) var(--space-6);
  font-size: var(--text-base);
}

/* Cards */
.card {
  background-color: var(--color-bg);
  border: 2px solid var(--color-border);
  border-radius: var(--radius-2xl);
  padding: var(--space-6);
  transition: box-shadow var(--transition-base);
}

.card:hover {
  box-shadow: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
}

.card-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  margin-bottom: var(--space-2);
}

.card-text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  margin: 0;
}

/* Navigation */
.site-header {
  position: sticky;
  top: 0;
  z-index: 55;
  background-color: var(--color-bg);
  border-bottom: 1px solid var(--color-border);
}

.site-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 64px;
  padding: var(--space-4) var(--container-padding);
  max-width: var(--container-max);
  margin: 0 auto;
}

.site-logo {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-primary);
}

.site-logo:hover {
  color: var(--color-primary);
}

.nav-list {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-6);
  list-style: none;
  margin: 0;
  padding: 0;
}

.nav-link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text-muted);
  padding: var(--space-2) 0;
}

.nav-link:hover {
  color: var(--color-primary);
}

.nav-link:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

/* Dark / Glass Header */
.site-header--dark {
  background-color: rgba(12, 18, 37, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--color-dark-border);
}

.site-header--dark .site-logo {
  color: var(--color-dark-text);
}

.site-header--dark .site-logo:hover {
  color: var(--color-dark-text);
}

.site-header--dark .nav-link {
  color: var(--color-dark-text-muted);
}

.site-header--dark .nav-link:hover {
  color: var(--color-dark-text);
}

/* Hamburger toggle — hidden on desktop, visible on mobile */
.nav-toggle {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: var(--space-2);
  background: none;
  border: none;
  cursor: pointer;
  z-index: 60;
}

.nav-toggle__bar {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform 300ms ease, opacity 200ms ease;
}

.site-header--dark .nav-toggle__bar {
  background-color: var(--color-dark-text);
}

/* Animate bars into X when open */
.nav-toggle--open .nav-toggle__bar:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle--open .nav-toggle__bar:nth-child(2) {
  opacity: 0;
}

.nav-toggle--open .nav-toggle__bar:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile nav styles */
@media (max-width: 767px) {
  .nav-toggle {
    display: flex;
  }

  .nav-menu {
    position: fixed;
    top: 0;
    right: 0;
    width: 280px;
    height: 100vh;
    height: 100dvh;
    padding: 5rem var(--space-8) var(--space-8);
    background-color: var(--color-bg);
    border-left: 1px solid var(--color-border);
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.1);
    transform: translateX(100%);
    transition: transform 350ms cubic-bezier(0.16, 1, 0.3, 1);
    z-index: 55;
    overflow-y: auto;
  }

  .site-header--dark .nav-menu {
    background-color: var(--color-dark-bg);
    border-left-color: var(--color-dark-border);
    box-shadow: -8px 0 32px rgba(0, 0, 0, 0.4);
  }

  .nav-menu--open {
    transform: translateX(0);
  }

  .nav-menu .nav-list {
    flex-direction: column;
    gap: 0;
    align-items: stretch;
  }

  .nav-menu .nav-link {
    display: block;
    padding: var(--space-4) 0;
    font-size: var(--text-base);
    border-bottom: 1px solid var(--color-border);
  }

  .site-header--dark .nav-menu .nav-link {
    border-bottom-color: var(--color-dark-border);
  }

  .nav-menu .nav-list li:last-child .nav-link {
    border-bottom: none;
  }
}

/* Overlay behind open mobile nav */
.nav-overlay {
  display: none;
  position: fixed;
  inset: 0;
  background-color: rgba(0, 0, 0, 0.5);
  z-index: 52;
  opacity: 0;
  transition: opacity 300ms ease;
}

.nav-overlay--visible {
  display: block;
  opacity: 1;
}

/* Skip link for accessibility */
.skip-link {
  position: absolute;
  top: -100%;
  left: var(--space-4);
  z-index: 100;
  padding: var(--space-3) var(--space-4);
  background-color: var(--color-primary);
  color: white;
  font-weight: 500;
  border-radius: var(--radius-pill);
  transition: top var(--transition-fast);
}

.skip-link:focus {
  top: var(--space-4);
}