/* ============================================
   SHARED COMPONENTS
   Buttons, Cards, Badges, Forms, Scroll Indicator
   ============================================ */

/* --- Buttons --- */
.btn-primary {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background-color: var(--accent-primary);
  color: #fff;
  font-size: var(--text-small);
  font-weight: 600;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-full);
  border: 2px solid var(--accent-primary);
  transition: background var(--transition-base), transform var(--transition-base), box-shadow var(--transition-base);
  cursor: pointer;
  text-decoration: none;
}

.btn-primary:hover {
  background-color: var(--accent-primary-hover);
  border-color: var(--accent-primary-hover);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-glow);
}

.btn-outline {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background-color: transparent;
  color: var(--text-primary);
  font-size: var(--text-small);
  font-weight: 600;
  padding: 0.85rem 2rem;
  border-radius: var(--radius-full);
  border: 2px solid var(--border-hover);
  transition: background var(--transition-base), color var(--transition-base), transform var(--transition-base), border-color var(--transition-base);
  cursor: pointer;
  text-decoration: none;
}

.btn-outline:hover {
  background-color: var(--text-primary);
  color: var(--bg-primary);
  border-color: var(--text-primary);
  transform: translateY(-2px);
}

.btn-ghost {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  background: none;
  color: var(--accent-primary);
  font-size: var(--text-small);
  font-weight: 600;
  padding: 0.5rem 0;
  border: none;
  transition: color var(--transition-base);
  cursor: pointer;
  text-decoration: none;
}

.btn-ghost:hover {
  color: var(--accent-primary-hover);
}

.btn-ghost i,
.btn-ghost .arrow {
  transition: transform var(--transition-base);
}

.btn-ghost:hover i,
.btn-ghost:hover .arrow {
  transform: translateX(4px);
}

/* --- Cards --- */
.card {
  background: var(--bg-primary);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-lg);
  padding: var(--space-2xl);
  transition: border-color var(--transition-base), box-shadow var(--transition-base), transform var(--transition-base);
}

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

/* Service Card */
.card-service {
  display: flex;
  flex-direction: column;
  gap: var(--space-lg);
}

.card-service .card-icon {
  width: 60px;
  height: 60px;
  border-radius: var(--radius-lg);
  background: var(--accent-glow);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
  color: var(--accent-primary);
  flex-shrink: 0;
}

.card-service .card-title {
  font-size: var(--text-h3);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.card-service .card-description {
  color: var(--text-secondary);
  margin-bottom: var(--space-md);
}

.card-service .card-features {
  display: flex;
  flex-direction: column;
  gap: var(--space-sm);
  margin-bottom: var(--space-lg);
}

.card-service .card-features li {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-secondary);
  font-size: var(--text-small);
}

.card-service .card-features li i {
  color: var(--accent-secondary);
  font-size: 0.75rem;
}

/* Publication Card */
.card-publication {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  border-left: 4px solid var(--accent-primary);
  border-radius: var(--radius-md);
  padding: var(--space-xl) var(--space-2xl);
}

.card-publication .pub-year {
  display: inline-flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: var(--text-caption);
  font-weight: 600;
  color: var(--accent-primary);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.card-publication .pub-title {
  font-size: var(--text-h3);
  font-weight: 700;
  color: var(--text-primary);
  line-height: 1.3;
}

.card-publication .pub-authors {
  font-size: var(--text-small);
  color: var(--text-muted);
  line-height: 1.5;
}

.card-publication .pub-venue {
  font-size: var(--text-small);
  color: var(--accent-primary);
  font-style: italic;
}

.card-publication .pub-links {
  display: flex;
  gap: var(--space-md);
  flex-wrap: wrap;
}

.card-publication .pub-link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--text-secondary);
  padding: 0.4rem 1rem;
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
}

.card-publication .pub-link:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  background: var(--accent-glow);
}

/* Event Card */
.card-event {
  display: flex;
  gap: var(--space-xl);
  align-items: flex-start;
  border-left: 4px solid var(--accent-primary);
  border-radius: var(--radius-md);
  padding: var(--space-xl) var(--space-2xl);
}

.card-event .event-date {
  display: flex;
  flex-direction: column;
  align-items: center;
  min-width: 60px;
  flex-shrink: 0;
}

.card-event .event-date .day {
  font-size: var(--text-h1);
  font-weight: 800;
  color: var(--accent-primary);
  line-height: 1;
}

.card-event .event-date .month {
  font-size: var(--text-caption);
  font-weight: 600;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.card-event .event-info {
  flex: 1;
}

.card-event .event-title {
  font-size: var(--text-h3);
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: var(--space-sm);
}

.card-event .event-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
  margin-bottom: var(--space-md);
}

.card-event .event-meta span {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  font-size: var(--text-small);
  color: var(--text-muted);
}

.card-event .event-meta span i {
  color: var(--accent-primary);
}

.card-event .event-description {
  color: var(--text-secondary);
  font-size: var(--text-small);
}

.card-event.past-event {
  border-left-color: var(--text-muted);
  opacity: 0.7;
}

.card-event.past-event:hover {
  opacity: 1;
}

@media (max-width: 768px) {
  .card-event {
    flex-direction: column;
    gap: var(--space-md);
  }

  .card-event .event-date {
    flex-direction: row;
    gap: var(--space-sm);
    align-items: baseline;
  }
}

/* --- Badges / Tags --- */
.badge {
  display: inline-flex;
  align-items: center;
  font-size: var(--text-caption);
  font-weight: 600;
  padding: 0.3rem 0.85rem;
  border-radius: var(--radius-full);
  background: var(--accent-glow);
  color: var(--accent-primary);
  letter-spacing: 0.02em;
}

.badge--muted {
  background: rgba(136, 136, 160, 0.1);
  color: var(--text-muted);
}

.badge--success {
  background: rgba(0, 184, 148, 0.1);
  color: var(--accent-secondary);
}

/* --- Form Elements --- */
.form-group {
  margin-bottom: var(--space-lg);
}

.form-group label {
  display: block;
  font-size: var(--text-small);
  font-weight: 500;
  color: var(--text-secondary);
  margin-bottom: var(--space-sm);
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.85rem var(--space-md);
  background: var(--bg-surface);
  border: 1px solid var(--border-subtle);
  border-radius: var(--radius-md);
  color: var(--text-primary);
  font-family: var(--font-primary);
  font-size: var(--text-body);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
  outline: none;
}

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

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--accent-primary);
  box-shadow: 0 0 0 3px var(--accent-glow);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='none'%3E%3Cpath d='M1 1.5l5 5 5-5' stroke='%234a4a68' stroke-width='1.5' stroke-linecap='round' stroke-linejoin='round'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

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

/* Form Status Messages */
.form-status {
  margin-top: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  font-size: var(--text-small);
  font-weight: 500;
}

.form-status--success {
  background: rgba(0, 184, 148, 0.1);
  color: var(--accent-secondary);
  border: 1px solid rgba(0, 184, 148, 0.2);
}

.form-status--error {
  background: rgba(220, 53, 69, 0.1);
  color: #dc3545;
  border: 1px solid rgba(220, 53, 69, 0.2);
}

/* --- Page Hero (shared across inner pages) --- */
.page-hero {
  min-height: 60vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: var(--gradient-hero);
  position: relative;
  padding: var(--space-5xl) var(--space-xl) var(--space-3xl);
}

.page-hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse at 50% 50%, rgba(30, 58, 95, 0.04) 0%, transparent 60%);
  pointer-events: none;
}

.page-hero-inner {
  position: relative;
  z-index: 1;
  max-width: 700px;
}

.page-hero-title {
  font-size: var(--text-hero);
  font-weight: 900;
  letter-spacing: -0.03em;
  line-height: 1;
  color: var(--text-primary);
  margin: var(--space-md) 0;
}

.page-hero-subtitle {
  font-size: var(--text-h2);
  font-weight: 400;
  color: var(--text-secondary);
  margin: 0;
}

@media (max-width: 768px) {
  .page-hero {
    min-height: 50vh;
    padding: var(--space-4xl) var(--space-md) var(--space-2xl);
  }
}

/* --- Scroll Indicator --- */
.scroll-indicator {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-sm);
  color: var(--text-muted);
  font-size: var(--text-caption);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.15em;
}

.scroll-indicator .scroll-arrow {
  width: 24px;
  height: 24px;
  border-right: 2px solid var(--text-muted);
  border-bottom: 2px solid var(--text-muted);
  transform: rotate(45deg);
  animation: scrollPulse 2s ease-in-out infinite;
}

@keyframes scrollPulse {
  0%, 100% { transform: rotate(45deg) translateY(0); opacity: 1; }
  50% { transform: rotate(45deg) translateY(8px); opacity: 0.5; }
}

/* --- Social Icons --- */
.social-links {
  display: flex;
  gap: var(--space-md);
  align-items: center;
}

.social-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border-subtle);
  color: var(--text-secondary);
  font-size: 1.1rem;
  transition: all var(--transition-base);
}

.social-links a:hover {
  color: var(--accent-primary);
  border-color: var(--accent-primary);
  background: var(--accent-glow);
  transform: translateY(-3px);
}