/*
 * NAMKC Youth Website - Component Styles
 * All reusable UI components including navigation, buttons, cards, forms, etc.
 * Mobile-first design with desktop enhancements
 */

/* ============================
   HEADER & NAVIGATION
   ============================ */

/* Main Header */
.site-header {
  background-color: var(--color-primary);
  color: var(--color-bg-primary);
  position: sticky;
  top: 0;
  z-index: var(--z-index-sticky);
  box-shadow: var(--shadow-small);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--nav-height-mobile);
}

/* Logo / Branding */
.site-logo {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-bg-primary);
  text-decoration: none;
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
}

.site-logo:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.site-logo-img {
  height: 40px;
  width: auto;
  display: block;
}

/* Mobile Navigation Toggle */
.nav-toggle {
  display: flex;
  flex-direction: column;
  gap: 6px;
  background: none;
  border: none;
  padding: var(--spacing-sm);
  cursor: pointer;
  z-index: var(--z-index-modal);
}

.nav-toggle span {
  display: block;
  width: 28px;
  height: 3px;
  background-color: var(--color-bg-primary);
  border-radius: 2px;
  transition: all var(--transition-base);
}

/* Hamburger animation when open */
.nav-toggle.active span:nth-child(1) {
  transform: rotate(45deg) translate(8px, 8px);
}

.nav-toggle.active span:nth-child(2) {
  opacity: 0;
}

.nav-toggle.active span:nth-child(3) {
  transform: rotate(-45deg) translate(7px, -7px);
}

/* Primary Navigation */
.primary-nav {
  position: fixed;
  top: 0;
  right: -100%;
  width: 80%;
  max-width: 320px;
  height: 100vh;
  background-color: var(--color-primary);
  padding: var(--nav-height-mobile) var(--spacing-lg) var(--spacing-xl);
  transition: right var(--transition-base);
  overflow-y: auto;
  z-index: var(--z-index-fixed);
}

.primary-nav.active {
  right: 0;
}

.primary-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.primary-nav li {
  margin-bottom: 0;
}

.primary-nav a {
  display: block;
  padding: var(--spacing-md);
  color: var(--color-bg-primary);
  font-family: var(--font-heading);
  font-weight: var(--font-weight-semibold);
  font-size: 1.125rem;
  text-decoration: none;
  border-radius: var(--radius-small);
  transition: background-color var(--transition-fast);
}

.primary-nav a:hover,
.primary-nav a.active {
  background-color: rgba(255, 255, 255, 0.1);
  color: var(--color-accent);
  text-decoration: none;
}

/* Mobile nav overlay */
.nav-overlay {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100vh;
  background-color: rgba(0, 0, 0, 0.5);
  opacity: 0;
  visibility: hidden;
  transition: opacity var(--transition-base), visibility var(--transition-base);
  z-index: var(--z-index-modal-backdrop);
}

.nav-overlay.active {
  opacity: 1;
  visibility: visible;
}

/* ============================
   BUTTONS
   ============================ */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  font-family: var(--font-heading);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
  letter-spacing: var(--letter-spacing-wide);
  text-decoration: none;
  padding: var(--button-padding-y-mobile) var(--button-padding-x-mobile);
  min-height: var(--button-min-height);
  border-radius: var(--radius-small);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  text-align: center;
  white-space: nowrap;
}

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

/* Primary Button */
.btn-primary {
  background-color: var(--color-primary);
  color: var(--color-bg-primary);
  border-color: var(--color-primary);
}

.btn-primary:hover {
  background-color: var(--color-primary-dark);
  border-color: var(--color-primary-dark);
  box-shadow: var(--shadow-hover);
  text-decoration: none;
  color: var(--color-bg-primary);
  transform: translateY(-2px);
}

.btn-primary:active {
  transform: scale(0.98);
}

/* Secondary Button */
.btn-secondary {
  background-color: transparent;
  color: var(--color-primary);
  border-color: var(--color-primary);
}

.btn-secondary:hover {
  background-color: var(--color-primary);
  color: var(--color-bg-primary);
  text-decoration: none;
}

/* CTA Button (Call-to-Action) */
.btn-cta {
  background-color: var(--color-accent);
  color: var(--color-bg-primary);
  border-color: var(--color-accent);
}

.btn-cta:hover {
  background-color: var(--color-accent-dark);
  border-color: var(--color-accent-dark);
  box-shadow: var(--shadow-medium);
  text-decoration: none;
  color: var(--color-bg-primary);
  transform: translateY(-2px);
}

/* Disabled Button State */
.btn:disabled,
.btn.disabled {
  background-color: var(--color-text-light);
  border-color: var(--color-text-light);
  color: var(--color-text-secondary);
  cursor: not-allowed;
  opacity: 0.6;
  transform: none;
}

/* Button Sizes */
.btn-small {
  padding: 10px 20px;
  font-size: var(--font-size-small);
  min-height: 36px;
}

.btn-large {
  padding: 16px 40px;
  font-size: 1.125rem;
  min-height: 56px;
}

/* ============================
   CARDS
   ============================ */

.card {
  background-color: var(--color-bg-primary);
  border: 1px solid var(--color-border-light);
  border-radius: var(--radius-medium);
  overflow: hidden;
  box-shadow: var(--shadow-small);
  transition: all var(--transition-base);
  height: 100%;
  display: flex;
  flex-direction: column;
}

.card:hover {
  box-shadow: var(--shadow-medium);
  transform: translateY(-4px);
}

.card-image {
  width: 100%;
  height: auto;
  object-fit: cover;
  display: block;
}

.card-image-container {
  position: relative;
  width: 100%;
  overflow: hidden;
  background-color: var(--color-bg-alternate);
}

/* Coordinator Card - Square images */
.card.coordinator-card .card-image-container {
  aspect-ratio: 1 / 1;
}

/* Event Card - 16:9 images */
.card.event-card .card-image-container {
  aspect-ratio: 16 / 9;
}

.card-content {
  padding: var(--card-padding-mobile);
  flex-grow: 1;
  display: flex;
  flex-direction: column;
}

.card-title {
  font-size: var(--font-size-h4);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: var(--spacing-sm);
}

.card-subtitle {
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
  margin-bottom: var(--spacing-sm);
  display: flex;
  align-items: center;
  gap: var(--spacing-xs);
}

.card-description {
  font-size: var(--font-size-body);
  color: var(--color-text-primary);
  line-height: var(--line-height-relaxed);
  margin-bottom: var(--spacing-md);
  flex-grow: 1;
}

.card-footer {
  padding-top: var(--spacing-md);
  border-top: 1px solid var(--color-border-light);
  margin-top: auto;
}

/* ============================
   HERO SECTION
   ============================ */

.hero {
  position: relative;
  background-color: var(--color-primary);
  color: var(--color-bg-primary);
  padding: var(--spacing-3xl) 0;
  overflow: hidden;
}

.hero-background {
  position: absolute;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.2;
  z-index: 0;
}

.hero-content {
  position: relative;
  z-index: 1;
  text-align: center;
  max-width: 800px;
  margin: 0 auto;
}

.hero-title {
  font-size: 2.5rem;
  font-weight: var(--font-weight-bold);
  color: var(--color-bg-primary);
  margin-bottom: var(--spacing-md);
  text-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
}

.hero-subtitle {
  font-size: 1.25rem;
  color: var(--color-bg-primary);
  margin-bottom: var(--spacing-xl);
  opacity: 0.95;
  line-height: var(--line-height-relaxed);
}

.hero-cta {
  display: flex;
  gap: var(--spacing-md);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================
   FORMS & INPUTS
   ============================ */

.form-group {
  margin-bottom: var(--spacing-md);
}

.form-label {
  display: block;
  font-family: var(--font-body);
  font-size: var(--font-size-small);
  font-weight: var(--font-weight-semibold);
  color: var(--color-text-primary);
  margin-bottom: var(--spacing-sm);
}

.form-label .required {
  color: var(--color-error);
  margin-left: 2px;
}

.form-input,
.form-select,
.form-textarea {
  width: 100%;
  padding: var(--input-padding-y) var(--input-padding-x);
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  color: var(--color-text-primary);
  background-color: var(--color-bg-primary);
  border: var(--input-border-width) solid var(--color-border-medium);
  border-radius: var(--radius-small);
  min-height: var(--input-min-height);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.form-input:focus,
.form-select:focus,
.form-textarea:focus {
  border-color: var(--color-primary);
  outline: none;
  box-shadow: 0 0 0 2px rgba(27, 79, 114, 0.1);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--color-text-light);
}

.form-textarea {
  min-height: 120px;
  max-height: 300px;
  resize: vertical;
}

/* Form Error State */
.form-group.error .form-input,
.form-group.error .form-select,
.form-group.error .form-textarea {
  border-color: var(--color-error);
}

.form-error {
  display: block;
  font-size: var(--font-size-small);
  color: var(--color-error);
  margin-top: var(--spacing-xs);
}

/* Form Success State */
.form-group.success .form-input,
.form-group.success .form-select,
.form-group.success .form-textarea {
  border-color: var(--color-success);
}

.form-success {
  display: block;
  font-size: var(--font-size-small);
  color: var(--color-success);
  margin-top: var(--spacing-xs);
}

/* Form Help Text */
.form-help {
  display: block;
  font-size: var(--font-size-small);
  color: var(--color-text-secondary);
  margin-top: var(--spacing-xs);
}

/* ============================
   FOOTER
   ============================ */

.site-footer {
  background-color: var(--color-primary);
  color: var(--color-bg-primary);
  padding: var(--footer-padding-y) 0 var(--spacing-lg);
}

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

.footer-column h3 {
  font-size: var(--font-size-h5);
  color: var(--color-bg-primary);
  margin-bottom: var(--spacing-md);
}

.footer-links {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-links li {
  margin-bottom: var(--spacing-sm);
}

.footer-links a {
  color: rgba(255, 255, 255, 0.8);
  text-decoration: none;
  transition: color var(--transition-fast);
  font-weight: var(--font-weight-regular);
}

.footer-links a:hover {
  color: var(--color-accent);
  text-decoration: none;
}

.footer-social {
  display: flex;
  gap: var(--spacing-md);
  margin-top: var(--spacing-md);
}

.social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  background-color: rgba(255, 255, 255, 0.1);
  border-radius: var(--radius-full);
  color: var(--color-bg-primary);
  transition: all var(--transition-fast);
}

.social-link:hover {
  background-color: var(--color-accent);
  transform: translateY(-2px);
}

.footer-bottom {
  padding-top: var(--spacing-lg);
  border-top: 1px solid rgba(255, 255, 255, 0.1);
  text-align: center;
  font-size: var(--font-size-small);
  color: rgba(255, 255, 255, 0.7);
}

/* ============================
   BREADCRUMB
   ============================ */

.breadcrumb {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: var(--spacing-sm);
  font-size: var(--font-size-small);
  padding: var(--spacing-md) 0;
}

.breadcrumb a {
  color: var(--color-primary);
  text-decoration: none;
}

.breadcrumb a:hover {
  color: var(--color-accent);
  text-decoration: underline;
}

.breadcrumb-separator {
  color: var(--color-text-secondary);
}

.breadcrumb .current {
  color: var(--color-text-secondary);
}

/* ============================
   ALERT / NOTIFICATION
   ============================ */

.alert {
  padding: var(--spacing-md) var(--spacing-lg);
  border-radius: var(--radius-medium);
  margin-bottom: var(--spacing-md);
  border-left: 4px solid;
}

.alert-success {
  background-color: rgba(39, 174, 96, 0.1);
  border-color: var(--color-success);
  color: #1e7e34;
}

.alert-warning {
  background-color: rgba(230, 126, 34, 0.1);
  border-color: var(--color-warning);
  color: #856404;
}

.alert-error {
  background-color: rgba(192, 57, 43, 0.1);
  border-color: var(--color-error);
  color: #721c24;
}

.alert-info {
  background-color: rgba(52, 152, 219, 0.1);
  border-color: var(--color-info);
  color: #004085;
}

/* ============================
   BADGE
   ============================ */

.badge {
  display: inline-flex;
  align-items: center;
  padding: 4px 12px;
  font-size: var(--font-size-tiny);
  font-weight: var(--font-weight-semibold);
  border-radius: var(--radius-full);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.badge-primary {
  background-color: var(--color-primary);
  color: var(--color-bg-primary);
}

.badge-accent {
  background-color: var(--color-accent);
  color: var(--color-bg-primary);
}

.badge-success {
  background-color: var(--color-success);
  color: var(--color-bg-primary);
}

/* ============================
   LOADING SPINNER
   ============================ */

.spinner {
  display: inline-block;
  width: 40px;
  height: 40px;
  border: 4px solid rgba(27, 79, 114, 0.2);
  border-top-color: var(--color-primary);
  border-radius: 50%;
  animation: spinner-rotate 0.8s linear infinite;
}

@keyframes spinner-rotate {
  to {
    transform: rotate(360deg);
  }
}

/* ============================
   IMAGE PLACEHOLDER
   ============================ */

.image-placeholder {
  background-color: var(--color-bg-alternate);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-light);
  font-size: var(--font-size-small);
  text-align: center;
  padding: var(--spacing-md);
}

/* ============================
   COMPACT COORDINATOR GRID (HOMEPAGE)
   ============================ */

.coordinator-compact-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-lg);
  margin-bottom: var(--spacing-xl);
}

.coordinator-compact {
  display: flex;
  flex-direction: column;
  align-items: center;
  text-align: center;
  text-decoration: none;
  transition: transform var(--transition-base);
  padding: var(--spacing-md);
  border-radius: var(--radius-medium);
}

.coordinator-compact:hover {
  transform: translateY(-4px);
}

.coordinator-compact-image {
  width: 120px;
  height: 120px;
  border-radius: 50%;
  overflow: hidden;
  margin-bottom: var(--spacing-md);
  border: 4px solid var(--color-primary);
  transition: all var(--transition-base);
  background-color: var(--color-bg-alternate);
  display: flex;
  align-items: center;
  justify-content: center;
}

.coordinator-compact:hover .coordinator-compact-image {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-medium);
  transform: scale(1.05);
}

.coordinator-compact-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.coordinator-compact-name {
  font-family: var(--font-heading);
  font-size: var(--font-size-body);
  font-weight: var(--font-weight-semibold);
  color: var(--color-primary);
  margin-bottom: 0;
}

.coordinator-compact:hover .coordinator-compact-name {
  color: var(--color-accent);
}

/* Tablet: 3 columns */
@media (min-width: 768px) {
  .coordinator-compact-grid {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--spacing-xl);
  }

  .coordinator-compact-image {
    width: 140px;
    height: 140px;
  }

  .coordinator-compact-name {
    font-size: 1.125rem;
  }
}

/* Desktop: 4 columns */
@media (min-width: 1024px) {
  .coordinator-compact-grid {
    grid-template-columns: repeat(4, 1fr);
    gap: var(--spacing-2xl);
  }

  .coordinator-compact-image {
    width: 160px;
    height: 160px;
  }
}

/*
 * DEVELOPER NOTES:
 *
 * Component Usage:
 * - All components are mobile-first and responsive
 * - Use .card for coordinator profiles and event cards
 * - Forms include validation states (.error, .success)
 * - Buttons have three variants: .btn-primary, .btn-secondary, .btn-cta
 *
 * Navigation:
 * - Mobile: Hamburger menu with slide-in nav
 * - Desktop: Horizontal navigation (see responsive.css)
 * - Includes overlay for mobile menu
 *
 * Accessibility:
 * - All interactive elements have focus states
 * - Form labels properly associated with inputs
 * - Minimum 44px touch targets maintained
 * - Color contrast meets WCAG AA standards
 *
 * Integration:
 * - Header can include breadcrumb for NAMKC site integration
 * - Footer includes links back to main NAMKC site
 * - Social links properly structured
 */