/**
 * NORA Website - Component Styles
 * Buttons, cards, navigation, badges, and reusable UI components
 */

/* ========================================
   Buttons
   ======================================== */

/* Base button */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: var(--space-sm) var(--space-lg);
  font-family: var(--font-display);
  font-size: var(--text-body);
  font-weight: var(--weight-semibold);
  line-height: 1;
  text-decoration: none;
  border: none;
  border-radius: var(--radius-full);
  cursor: pointer;
  transition: all var(--duration-normal) var(--ease-default);
  min-height: 44px; /* Accessibility: touch target */
  min-width: 44px;
}

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

/* Primary button - Gold gradient */
.btn-primary {
  background: linear-gradient(135deg, var(--gold-primary), var(--gold-deep));
  color: var(--bg-void);
  box-shadow: 0 4px 20px var(--gold-glow);
}

.btn-primary:hover:not(:disabled) {
  transform: translateY(-2px);
  box-shadow: 0 8px 30px rgba(242, 201, 76, 0.4);
}

.btn-primary:active:not(:disabled) {
  transform: translateY(0);
  box-shadow: 0 4px 15px var(--gold-glow);
}

/* Ghost button - Outline style */
.btn-ghost {
  background: transparent;
  color: var(--text-luminous);
  border: 1px solid var(--border-medium);
}

.btn-ghost:hover:not(:disabled) {
  background: rgba(255, 255, 255, 0.05);
  border-color: rgba(255, 255, 255, 0.4);
}

.btn-ghost:active:not(:disabled) {
  background: rgba(255, 255, 255, 0.08);
}

/* Secondary button */
.btn-secondary {
  background: var(--bg-card);
  color: var(--text-luminous);
  border: 1px solid var(--border-subtle);
}

.btn-secondary:hover:not(:disabled) {
  background: var(--bg-elevated);
  border-color: var(--border-medium);
}

/* Button sizes */
.btn-sm {
  padding: var(--space-xs) var(--space-md);
  font-size: var(--text-caption);
  min-height: 36px;
}

.btn-lg {
  padding: var(--space-md) var(--space-xl);
  font-size: var(--text-title);
  min-height: 52px;
}

/* Button with icon */
.btn-icon {
  padding: var(--space-sm);
  min-width: 44px;
  aspect-ratio: 1;
}

/* ========================================
   Navigation
   ======================================== */

/* Main header */
.nav-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: var(--z-sticky);
  padding: var(--space-md) 0;
  transition: background var(--duration-normal) var(--ease-default),
              backdrop-filter var(--duration-normal) var(--ease-default);
}

.nav-header[data-scroll-state="scrolled"] {
  background: rgba(11, 19, 37, 0.85);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border-subtle);
}

.nav-container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 var(--container-padding);
}

/* Logo */
.nav-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-family: var(--font-display);
  font-size: var(--text-title);
  font-weight: var(--weight-bold);
  color: var(--text-radiant);
}

.logo-mark {
  width: 32px;
  height: 32px;
  background: radial-gradient(circle at 30% 30%, var(--gold-bright), var(--gold-deep));
  border-radius: 50%;
  box-shadow: 0 0 20px var(--gold-glow);
  animation: logo-pulse 3s ease-in-out infinite;
}

@keyframes logo-pulse {
  0%, 100% { box-shadow: 0 0 20px var(--gold-glow); }
  50% { box-shadow: 0 0 30px rgba(242, 201, 76, 0.5); }
}

/* Nav links */
.nav-links {
  display: none;
  align-items: center;
  gap: var(--space-xl);
}

.nav-links a {
  font-size: var(--text-caption);
  font-weight: var(--weight-medium);
  color: var(--text-soft);
  transition: color var(--duration-fast) var(--ease-default);
  position: relative;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--gold-primary), var(--accent-amethyst));
  transition: width var(--duration-normal) var(--ease-default);
}

.nav-links a:hover,
.nav-links a[aria-current="page"] {
  color: var(--text-radiant);
}

.nav-links a:hover::after,
.nav-links a[aria-current="page"]::after {
  width: 100%;
}

/* Nav actions */
.nav-actions {
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

/* Language toggle */
.lang-toggle {
  display: flex;
  align-items: center;
  gap: 2px;
  padding: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  cursor: pointer;
}

.lang-toggle span {
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--text-meta);
  font-weight: var(--weight-medium);
  color: var(--text-muted);
  border-radius: var(--radius-full);
  transition: all var(--duration-fast) var(--ease-default);
}

.lang-toggle span.is-active {
  background: var(--gold-primary);
  color: var(--bg-void);
}

/* Mobile menu toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 44px;
  height: 44px;
  padding: var(--space-sm);
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text-luminous);
  border-radius: 2px;
  transition: all var(--duration-normal) var(--ease-default);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile drawer */
.nav-drawer {
  position: fixed;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(320px, 85vw);
  background: var(--bg-nebula);
  border-left: 1px solid var(--border-subtle);
  padding: var(--space-3xl) var(--space-lg);
  transform: translateX(100%);
  transition: transform var(--duration-slow) var(--ease-default);
  z-index: var(--z-modal);
}

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

.nav-drawer-overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.6);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--duration-slow) var(--ease-default),
              visibility var(--duration-slow) var(--ease-default);
  z-index: calc(var(--z-modal) - 1);
}

.nav-drawer-overlay.is-open {
  opacity: 1;
  visibility: visible;
}

.nav-drawer-links {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.nav-drawer-links a {
  font-size: var(--text-title);
  font-weight: var(--weight-medium);
  color: var(--text-luminous);
  padding: var(--space-sm) 0;
}

/* ========================================
   Cards
   ======================================== */

/* Base card */
.card {
  background: linear-gradient(
    135deg,
    rgba(20, 33, 58, 0.8),
    rgba(11, 19, 37, 0.9)
  );
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: transform var(--duration-normal) var(--ease-default),
              border-color var(--duration-normal) var(--ease-default),
              box-shadow var(--duration-normal) var(--ease-default);
}

.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-gold);
  box-shadow: var(--shadow-md), var(--shadow-glow);
}

/* Mode card (reading modes) */
.mode-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding: var(--space-xl);
}

.mode-card-icon {
  width: 64px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--bg-elevated), var(--bg-card));
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  font-size: 2rem;
}

.mode-card-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: var(--space-md);
}

.mode-card-title {
  font-size: var(--text-title);
  color: var(--text-radiant);
  margin-bottom: var(--space-xs);
}

.mode-card-subtitle {
  font-size: var(--text-caption);
  color: var(--text-muted);
}

.mode-card-body {
  flex: 1;
  color: var(--text-soft);
  line-height: var(--leading-relaxed);
}

.mode-card-footer {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  flex-wrap: wrap;
  padding-top: var(--space-md);
  border-top: 1px solid var(--border-subtle);
}

/* Feature card */
.feature-card {
  text-align: center;
  padding: var(--space-xl);
}

.feature-card-icon {
  width: 80px;
  height: 80px;
  margin: 0 auto var(--space-lg);
  display: flex;
  align-items: center;
  justify-content: center;
  background: linear-gradient(135deg, var(--gold-glow), transparent);
  border-radius: 50%;
  font-size: 2.5rem;
}

/* ========================================
   Badges & Tags
   ======================================== */

.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: var(--space-xs) var(--space-sm);
  font-size: var(--text-meta);
  font-weight: var(--weight-medium);
  border-radius: var(--radius-full);
  background: var(--bg-card);
  color: var(--text-soft);
  border: 1px solid var(--border-subtle);
}

.badge-primary {
  background: linear-gradient(135deg, var(--gold-primary), var(--gold-deep));
  color: var(--bg-void);
  border: none;
}

.badge-gold {
  background: var(--gold-glow);
  color: var(--gold-bright);
  border-color: var(--border-gold);
}

.badge-aurora {
  background: rgba(96, 165, 250, 0.15);
  color: var(--accent-aurora);
  border-color: rgba(96, 165, 250, 0.3);
}

.badge-sage {
  background: rgba(34, 197, 94, 0.15);
  color: var(--accent-sage);
  border-color: rgba(34, 197, 94, 0.3);
}

.badge-amethyst {
  background: rgba(167, 139, 250, 0.15);
  color: var(--accent-amethyst);
  border-color: rgba(167, 139, 250, 0.3);
}

/* Tag */
.tag {
  display: inline-block;
  padding: 2px var(--space-sm);
  font-size: var(--text-meta);
  color: var(--text-muted);
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius-sm);
}

/* ========================================
   Section Headers
   ======================================== */

.section-header {
  text-align: center;
  max-width: 720px;
  margin: 0 auto var(--space-3xl);
}

.section-kicker {
  display: inline-block;
  font-size: var(--text-caption);
  font-weight: var(--weight-semibold);
  color: var(--gold-primary);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  margin-bottom: var(--space-sm);
}

.section-title {
  margin-bottom: var(--space-md);
}

.section-subtitle {
  font-size: var(--text-body);
  color: var(--text-soft);
  line-height: var(--leading-relaxed);
}

/* ========================================
   Links
   ======================================== */

.link {
  color: var(--accent-aurora);
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color var(--duration-fast) var(--ease-default);
}

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

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

.link-gold:hover {
  color: var(--gold-bright);
}

/* ========================================
   Dividers
   ======================================== */

.divider {
  width: 100%;
  height: 1px;
  background: var(--border-subtle);
  margin: var(--space-xl) 0;
}

.divider-gold {
  background: linear-gradient(
    90deg,
    transparent,
    var(--border-gold),
    transparent
  );
}

/* ========================================
   Icons (SVG containers)
   ======================================== */

.icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 1em;
  height: 1em;
}

.icon svg {
  width: 100%;
  height: 100%;
  fill: currentColor;
}

.icon-sm { font-size: 1rem; }
.icon-md { font-size: 1.5rem; }
.icon-lg { font-size: 2rem; }
.icon-xl { font-size: 3rem; }

/* ========================================
   Footer
   ======================================== */

.site-footer {
  padding: var(--space-3xl) 0 var(--space-xl);
  background: var(--bg-void);
  border-top: 1px solid var(--border-subtle);
}

.footer-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-xl);
  margin-bottom: var(--space-2xl);
}

.footer-brand {
  max-width: 280px;
}

.footer-brand-logo {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  margin-bottom: var(--space-md);
}

.footer-brand-text {
  font-size: var(--text-caption);
  color: var(--text-muted);
  line-height: var(--leading-relaxed);
}

.footer-nav {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-xl);
}

.footer-nav-group h4 {
  font-size: var(--text-caption);
  font-weight: var(--weight-semibold);
  color: var(--text-soft);
  text-transform: uppercase;
  letter-spacing: 0.05em;
  margin-bottom: var(--space-md);
}

.footer-nav-group ul {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
}

.footer-nav-group a {
  font-size: var(--text-caption);
  color: var(--text-muted);
  transition: color var(--duration-fast) var(--ease-default);
}

.footer-nav-group a:hover {
  color: var(--text-luminous);
}

.footer-bottom {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  padding-top: var(--space-xl);
  border-top: 1px solid var(--border-subtle);
}

.footer-copyright {
  font-size: var(--text-meta);
  color: var(--text-faint);
}

.footer-social {
  display: flex;
  gap: var(--space-md);
}

.footer-social a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: var(--bg-card);
  border: 1px solid var(--border-subtle);
  border-radius: 50%;
  color: var(--text-muted);
  transition: all var(--duration-fast) var(--ease-default);
}

.footer-social a:hover {
  background: var(--gold-primary);
  border-color: var(--gold-primary);
  color: var(--bg-void);
}

/* ========================================
   Scroll-to-Top Button
   ======================================== */

.scroll-top {
  position: fixed;
  bottom: var(--space-xl);
  right: var(--space-xl);
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgba(20, 33, 58, 0.85);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid var(--border-subtle);
  color: var(--gold-primary);
  cursor: pointer;
  opacity: 0;
  visibility: hidden;
  transform: translateY(20px);
  transition:
    opacity var(--duration-normal) var(--ease-out),
    visibility var(--duration-normal) var(--ease-out),
    transform var(--duration-normal) var(--ease-out),
    background var(--duration-fast) var(--ease-default),
    border-color var(--duration-fast) var(--ease-default);
  z-index: var(--z-sticky);
  display: flex;
  align-items: center;
  justify-content: center;
}

.scroll-top.is-visible {
  opacity: 1;
  visibility: visible;
  transform: translateY(0);
}

.scroll-top:hover {
  background: rgba(242, 201, 76, 0.15);
  border-color: var(--border-gold);
}

.scroll-top:active {
  transform: translateY(2px);
}

.scroll-top svg {
  width: 20px;
  height: 20px;
}

/* ========================================
   Drawer Stagger Animation
   ======================================== */

.nav-drawer-links a {
  opacity: 0;
  transform: translateX(-20px);
  transition:
    opacity var(--duration-normal) var(--ease-out),
    transform var(--duration-normal) var(--ease-out),
    color var(--duration-fast) var(--ease-default);
}

.nav-drawer.is-open .nav-drawer-links a {
  opacity: 1;
  transform: translateX(0);
}

.nav-drawer.is-open .nav-drawer-links a:nth-child(1) { transition-delay: 0.05s; }
.nav-drawer.is-open .nav-drawer-links a:nth-child(2) { transition-delay: 0.1s; }
.nav-drawer.is-open .nav-drawer-links a:nth-child(3) { transition-delay: 0.15s; }
.nav-drawer.is-open .nav-drawer-links a:nth-child(4) { transition-delay: 0.2s; }
.nav-drawer.is-open .nav-drawer-links a:nth-child(5) { transition-delay: 0.25s; }

/* Reset transition delay when closing */
.nav-drawer:not(.is-open) .nav-drawer-links a {
  transition-delay: 0s;
}

/* ========================================
   Enhanced Card Hover Effects
   ======================================== */

.card,
.mode-card,
.trust-item,
.karma-card {
  transition:
    transform var(--duration-normal) var(--ease-out),
    border-color var(--duration-normal) var(--ease-default),
    box-shadow var(--duration-normal) var(--ease-out);
}

.card:hover,
.mode-card:hover {
  transform: translateY(-6px);
  box-shadow:
    var(--shadow-lg),
    0 0 40px rgba(242, 201, 76, 0.1);
}

.trust-item:hover {
  transform: translateY(-4px);
}

/* ========================================
   Button Ripple Effect
   ======================================== */

.btn {
  position: relative;
  overflow: hidden;
}

.btn::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(
    circle at var(--ripple-x, 50%) var(--ripple-y, 50%),
    rgba(255, 255, 255, 0.3) 0%,
    transparent 60%
  );
  opacity: 0;
  transform: scale(0);
  transition: transform 0.5s ease-out, opacity 0.3s ease-out;
  pointer-events: none;
}

.btn:active::after {
  opacity: 1;
  transform: scale(2.5);
}