/* ============================================
   Components — Reusable UI Elements
   Cyber Blue Theme
   ============================================ */

/* ── Buttons ── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-sm);
  padding: 0.875rem 2rem;
  font-weight: var(--fw-semibold);
  font-size: var(--fs-body);
  border-radius: var(--radius-full);
  transition: all var(--transition-base);
  white-space: nowrap;
  position: relative;
  overflow: hidden;
}

.btn::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(255,255,255,0.15), transparent);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.btn:hover::before {
  opacity: 1;
}

.btn--primary {
  background: var(--gradient-cyber);
  color: var(--color-text-on-primary);
  box-shadow: 0 4px 15px rgba(10, 36, 99, 0.3);
}

.btn--primary:hover {
  box-shadow: 0 6px 25px rgba(0, 180, 216, 0.35);
  transform: translateY(-2px);
}

.btn--accent {
  background: var(--gradient-accent);
  color: var(--color-text-on-primary);
  font-weight: var(--fw-bold);
  box-shadow: 0 4px 15px rgba(0, 180, 216, 0.3);
}

.btn--accent:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(0, 180, 216, 0.4);
}

.btn--outline {
  background: transparent;
  color: var(--color-text-on-primary);
  border: 2px solid rgba(255, 255, 255, 0.4);
}

.btn--outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-accent);
  box-shadow: 0 0 20px rgba(0, 180, 216, 0.2);
  transform: translateY(-2px);
}

.btn--whatsapp {
  background: var(--color-whatsapp);
  color: #fff;
  box-shadow: 0 4px 12px rgba(26, 141, 78, 0.2);
}

.btn--whatsapp:hover {
  background: var(--color-whatsapp-hover);
  transform: translateY(-2px);
  box-shadow: 0 6px 18px rgba(32, 168, 94, 0.25);
}

.btn svg {
  width: 20px;
  height: 20px;
  flex-shrink: 0;
}

/* ── Cards ── */
.card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  padding: var(--space-xl);
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  border: 1px solid var(--color-border-light);
}

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

.card--glass {
  background: var(--color-surface-glass);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border: 1px solid rgba(255, 255, 255, 0.2);
}

/* ── Badge ── */
.badge {
  display: inline-flex;
  align-items: center;
  gap: var(--space-xs);
  padding: 0.375rem 1rem;
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  border-radius: var(--radius-full);
  background: rgba(10, 36, 99, 0.08);
  color: var(--color-primary);
}

.badge--accent {
  background: rgba(0, 180, 216, 0.1);
  color: var(--color-accent-dark);
}

/* ── Stat Counter ── */
.stat {
  text-align: center;
}

.stat__number {
  font-size: clamp(2rem, 4vw, 3rem);
  font-weight: var(--fw-bold);
  background: var(--gradient-cyber);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: var(--space-xs);
}

.stat__number .stat__plus {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.stat__label {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  font-weight: var(--fw-medium);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

/* ── Accordion ── */
.accordion {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

.accordion__item {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: all var(--transition-base);
}

.accordion__item:hover {
  border-color: var(--color-accent);
}

.accordion__item.active {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-md), 0 0 15px rgba(0, 180, 216, 0.08);
}

.accordion__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: var(--space-lg) var(--space-xl);
  cursor: pointer;
  gap: var(--space-md);
  transition: background var(--transition-base);
}

.accordion__header:hover {
  background: rgba(0, 180, 216, 0.04);
}

.accordion__item.active .accordion__header {
  background: rgba(10, 36, 99, 0.04);
}

.accordion__title {
  font-size: var(--fs-h4);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  display: flex;
  align-items: center;
  gap: var(--space-md);
}

.accordion__title svg {
  width: 24px;
  height: 24px;
  color: var(--color-accent);
  flex-shrink: 0;
}

.accordion__icon {
  width: 24px;
  height: 24px;
  flex-shrink: 0;
  color: var(--color-text-muted);
  transition: transform var(--transition-base);
}

.accordion__item.active .accordion__icon {
  transform: rotate(180deg);
  color: var(--color-accent);
}

.accordion__body {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.4s ease;
}

.accordion__content {
  padding: 0 var(--space-xl) var(--space-xl);
  color: var(--color-text-secondary);
  line-height: var(--lh-relaxed);
}

.accordion__content p {
  margin-bottom: var(--space-md);
}

.accordion__content p:last-child {
  margin-bottom: 0;
}

.accordion__content ul {
  padding-inline-start: var(--space-lg);
  list-style: disc;
}

.accordion__content ul li {
  margin-bottom: var(--space-sm);
}

/* ── Disease Card Grid ── */
.disease-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-lg);
}

.disease-card {
  background: var(--color-surface);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border);
  overflow: hidden;
  transition: all var(--transition-base);
  cursor: pointer;
  position: relative;
}

.disease-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: var(--shadow-lg), 0 0 20px rgba(0, 180, 216, 0.1);
}

.disease-card.active {
  border-color: var(--color-primary);
  box-shadow: var(--shadow-lg), 0 0 24px rgba(0, 180, 216, 0.15);
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: 200px 1fr;
  grid-template-rows: auto 1fr;
  cursor: default;
}

.disease-card__visual {
  padding: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  border-radius: var(--radius-lg) var(--radius-lg) 0 0;
}

.disease-card__visual img {
  width: 100%;
  height: 180px;
  object-fit: cover;
  display: block;
  transition: transform var(--transition-base);
}

.disease-card:hover .disease-card__visual img {
  transform: scale(1.05);
}

.disease-card.active .disease-card__visual {
  grid-row: 1 / 3;
  border-radius: var(--radius-lg) 0 0 var(--radius-lg);
}

.disease-card.active .disease-card__visual img {
  height: 100%;
  min-height: 250px;
}

.disease-card__info {
  padding: 0 var(--space-md) var(--space-lg);
  text-align: center;
}

.disease-card.active .disease-card__info {
  text-align: left;
  padding: var(--space-lg) var(--space-lg) 0;
}

.disease-card__title {
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-xs);
  line-height: 1.3;
}

.disease-card.active .disease-card__title {
  font-size: var(--fs-h4);
  color: var(--color-primary);
}

.disease-card__excerpt {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  line-height: var(--lh-relaxed);
}

.disease-card__detail {
  display: none;
}

.disease-card.active .disease-card__detail {
  display: block;
  animation: fadeSlideIn 0.4s ease forwards;
}

.disease-card__content {
  padding: var(--space-md) var(--space-lg) var(--space-lg);
  color: var(--color-text-secondary);
  line-height: var(--lh-relaxed);
  font-size: var(--fs-small);
}

.disease-card__content p {
  margin-bottom: var(--space-md);
}

.disease-card__content p:last-child {
  margin-bottom: 0;
}

.disease-card__content ul {
  padding-inline-start: var(--space-lg);
  list-style: disc;
}

.disease-card__content ul li {
  margin-bottom: var(--space-sm);
}

.disease-card__content strong {
  color: var(--color-text);
  font-weight: var(--fw-semibold);
}

@keyframes fadeSlideIn {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ── Tabs ── */
.tabs {
  width: 100%;
}

.tabs__nav {
  display: flex;
  gap: var(--space-xs);
  border-bottom: 2px solid var(--color-border);
  margin-bottom: var(--space-xl);
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
  scrollbar-width: none;
}

.tabs__nav::-webkit-scrollbar {
  display: none;
}

.tabs__btn {
  padding: var(--space-md) var(--space-lg);
  font-weight: var(--fw-medium);
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  border-bottom: 2px solid transparent;
  margin-bottom: -2px;
  transition: all var(--transition-base);
  white-space: nowrap;
}

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

.tabs__btn.active {
  color: var(--color-accent-dark);
  border-bottom-color: var(--color-accent);
  font-weight: var(--fw-semibold);
}

.tabs__panel {
  display: none;
}

.tabs__panel.active {
  display: block;
  animation: fadeIn 0.3s ease;
}

/* ── Timeline ── */
.timeline {
  position: relative;
  padding-inline-start: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  inset-inline-start: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--color-primary), var(--color-accent), transparent);
}

.timeline__item {
  position: relative;
  padding-bottom: var(--space-2xl);
  padding-inline-start: var(--space-xl);
}

.timeline__item:last-child {
  padding-bottom: 0;
}

.timeline__item::before {
  content: '';
  position: absolute;
  inset-inline-start: -2rem;
  top: 6px;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background: var(--color-primary);
  border: 3px solid var(--color-bg-alt);
  box-shadow: 0 0 0 2px var(--color-primary), 0 0 8px rgba(0, 180, 216, 0.3);
  z-index: 1;
}

.timeline__item--highlight::before {
  background: var(--color-accent);
  box-shadow: 0 0 0 2px var(--color-accent), 0 0 12px rgba(0, 180, 216, 0.5);
}

.timeline__year {
  display: inline-block;
  font-size: var(--fs-small);
  font-weight: var(--fw-bold);
  color: var(--color-accent-dark);
  background: rgba(0, 180, 216, 0.1);
  padding: 0.25rem 0.75rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-sm);
}

.timeline__title {
  font-size: var(--fs-h4);
  font-weight: var(--fw-semibold);
  margin-bottom: var(--space-xs);
}

.timeline__subtitle {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
}

/* ── Publication Item ── */
.pub-item {
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  margin-bottom: var(--space-md);
  transition: all var(--transition-base);
}

.pub-item:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm), 0 0 10px rgba(0, 180, 216, 0.06);
}

.pub-item__title {
  font-size: var(--fs-body);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-sm);
  line-height: var(--lh-normal);
}

.pub-item__meta {
  font-size: var(--fs-small);
  color: var(--color-text-muted);
  line-height: var(--lh-normal);
}

/* ── Membership Badge ── */
.membership {
  display: flex;
  align-items: center;
  gap: var(--space-md);
  padding: var(--space-md) var(--space-lg);
  background: var(--color-surface);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border-light);
  transition: all var(--transition-base);
}

.membership:hover {
  border-color: var(--color-accent);
  box-shadow: var(--shadow-sm);
}

.membership__icon {
  width: 40px;
  height: 40px;
  border-radius: var(--radius-md);
  background: rgba(0, 180, 216, 0.08);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  color: var(--color-accent-dark);
}

.membership__icon svg {
  width: 20px;
  height: 20px;
}

.membership__name {
  font-size: var(--fs-small);
  font-weight: var(--fw-medium);
  color: var(--color-text);
}

/* ── Animations ── */
@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(20px); }
  to { opacity: 1; transform: translateY(0); }
}

@keyframes pulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}

@keyframes float {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-10px); }
}

@keyframes ripple {
  0% { transform: scale(0.8); opacity: 1; }
  100% { transform: scale(2.4); opacity: 0; }
}

@keyframes cyberPulse {
  0%, 100% { opacity: 0.4; }
  50% { opacity: 1; }
}

@keyframes glowLine {
  0% { transform: translateX(-100%); }
  100% { transform: translateX(100%); }
}