/* ==========================================================================
   UI Components — Buttons, Cards, Badges, Forms, Timeline
   ========================================================================== */

/* ── Buttons ───────────────────────────────────────────────────────────── */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--space-2);
  padding: var(--space-3) var(--space-6);
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  line-height: 1.5;
  text-decoration: none;
  border-radius: var(--radius-md);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  min-height: 48px;
  min-width: 48px;
  white-space: nowrap;
}

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

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

.btn--primary:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--secondary {
  background-color: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn--secondary:hover {
  background-color: var(--color-accent);
  color: white;
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn--dark {
  background-color: var(--color-text);
  color: white;
  border-color: var(--color-text);
}

.btn--dark:hover {
  background-color: #333;
  border-color: #333;
  color: white;
  transform: translateY(-1px);
}

.btn--ghost {
  background: transparent;
  color: var(--color-text);
  border-color: var(--color-border);
}

.btn--ghost:hover {
  border-color: var(--color-text);
  background: var(--color-bg-alt);
}

.btn--lg {
  padding: var(--space-4) var(--space-8);
  font-size: var(--fs-md);
  min-height: 56px;
}

.btn--sm {
  padding: var(--space-2) var(--space-4);
  font-size: var(--fs-sm);
  min-height: 40px;
}

.btn--full {
  width: 100%;
}

.btn-group {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
}

/* ── Project Cards ─────────────────────────────────────────────────────── */
.card {
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.04), 0 1px 2px rgba(0, 0, 0, 0.06);
  transition: transform var(--transition-base), box-shadow var(--transition-base), border-color var(--transition-base);
  border: 1px solid var(--color-border-light);
  display: flex;
  flex-direction: column;
  height: 100%;
}

.card:hover {
  box-shadow: 0 12px 20px -3px rgba(0, 0, 0, 0.08), 0 4px 6px -2px rgba(0, 0, 0, 0.04);
  transform: translateY(-3px);
  border-color: #BFDBFE;
}

.card__image {
  width: 100%;
  height: 220px;
  object-fit: cover;
  display: block;
  background-color: var(--color-bg-alt);
}

@media (max-width: 640px) {
  .card__image {
    height: 200px;
  }
}

.card__body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  flex-grow: 1;
}

.card__year {
  display: inline-block;
  font-size: 0.8125rem;
  font-weight: var(--fw-bold);
  color: var(--color-accent-hover);
  background: var(--color-accent-light);
  padding: 0.2rem 0.65rem;
  border-radius: var(--radius-full);
  margin-bottom: var(--space-3);
  letter-spacing: var(--ls-wide);
  border: 1px solid #DBEAFE;
  align-self: flex-start;
}

.card__title,
.card__title a {
  font-size: var(--fs-lg);
  font-weight: 700;
  color: #000000 !important;
  margin-bottom: var(--space-2);
  line-height: var(--lh-snug);
  text-decoration: none;
}

.card__title a:hover {
  color: var(--color-accent) !important;
}

.card__excerpt,
p.card__excerpt {
  font-size: 1rem !important;
  font-weight: 600 !important;
  color: #000000 !important;
  line-height: 1.6 !important;
  margin-bottom: var(--space-5) !important;
  flex-grow: 1 !important;
}

.card__actions {
  margin-top: auto;
}

.card__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  width: 100%;
  padding: 0.65rem 1.25rem;
  font-size: 0.9375rem;
  font-weight: var(--fw-semibold);
  color: #FFFFFF;
  background-color: var(--color-accent);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-md);
  text-decoration: none;
  transition: all var(--transition-fast);
  cursor: pointer;
}

.card__btn:hover {
  background-color: var(--color-accent-hover);
  border-color: var(--color-accent-hover);
  color: #FFFFFF;
  box-shadow: 0 4px 10px rgba(37, 99, 235, 0.25);
}

.card__link {
  display: inline-flex;
  align-items: center;
  gap: var(--space-2);
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-accent);
  margin-top: var(--space-3);
  text-decoration: none;
}

.card__link::after {
  content: '→';
  transition: transform var(--transition-fast);
}

.card:hover .card__link::after {
  transform: translateX(4px);
}

/* ── Badge ─────────────────────────────────────────────────────────────── */
.badge {
  display: inline-flex;
  align-items: center;
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  padding: var(--space-1) var(--space-3);
  border-radius: var(--radius-full);
  letter-spacing: var(--ls-wide);
  text-transform: uppercase;
}

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

.badge--success {
  background: #DCFCE7;
  color: var(--color-success);
}

.badge--warning {
  background: #FEF3C7;
  color: var(--color-warning);
}

.badge--neutral {
  background: var(--color-bg-alt);
  color: var(--color-text-secondary);
}

/* ── Timeline ──────────────────────────────────────────────────────────── */
.timeline {
  position: relative;
  padding-left: var(--space-8);
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0;
  bottom: 0;
  width: 2px;
  background: var(--color-border);
}

.timeline__item {
  position: relative;
  padding-bottom: var(--space-10);
}

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

.timeline__dot {
  position: absolute;
  left: calc(-1 * var(--space-8) - 5px);
  top: var(--space-1);
  width: 12px;
  height: 12px;
  background: var(--color-accent);
  border-radius: var(--radius-full);
  border: 2px solid var(--color-bg);
}

.timeline__year {
  font-size: var(--fs-sm);
  font-weight: var(--fw-bold);
  color: var(--color-accent);
  margin-bottom: var(--space-2);
  letter-spacing: var(--ls-wide);
}

.timeline__title {
  font-size: var(--fs-lg);
  font-weight: var(--fw-bold);
  margin-bottom: var(--space-2);
}

.timeline__content p {
  color: var(--color-text-secondary);
  font-size: var(--fs-base);
}

/* ── Section Header ────────────────────────────────────────────────────── */
.section-header {
  margin-bottom: var(--space-10);
}

.section-header--center {
  text-align: center;
}

.section-header--center p {
  margin-left: auto;
  margin-right: auto;
}

.section-label {
  display: inline-block;
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  color: var(--color-accent);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  margin-bottom: var(--space-3);
}

/* ── Lesson Box (for project pages) ────────────────────────────────────── */
.lesson-box {
  background: var(--color-bg-alt);
  border-left: 4px solid var(--color-accent-2);
  padding: var(--space-6);
  border-radius: 0 var(--radius-lg) var(--radius-lg) 0;
  margin: var(--space-8) 0;
}

.lesson-box__label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-bold);
  color: var(--color-accent-2);
  text-transform: uppercase;
  letter-spacing: var(--ls-wider);
  margin-bottom: var(--space-2);
}

.lesson-box p {
  font-size: var(--fs-md);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  font-style: italic;
  margin-bottom: 0;
}

/* ── Project Meta ──────────────────────────────────────────────────────── */
.project-meta {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-4);
  margin-bottom: var(--space-8);
  padding-bottom: var(--space-6);
  border-bottom: 1px solid var(--color-border);
}

.project-meta__item {
  display: flex;
  flex-direction: column;
  gap: var(--space-1);
}

.project-meta__label {
  font-size: var(--fs-xs);
  font-weight: var(--fw-semibold);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: var(--ls-wide);
}

.project-meta__value {
  font-size: var(--fs-base);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
}

/* ── Related Projects ──────────────────────────────────────────────────── */
.related-projects {
  margin-top: var(--space-12);
  padding-top: var(--space-8);
  border-top: 1px solid var(--color-border);
}

/* ── Forms ──────────────────────────────────────────────────────────────── */
.form-group {
  margin-bottom: var(--space-5);
}

.form-label {
  display: block;
  font-size: var(--fs-sm);
  font-weight: var(--fw-semibold);
  color: var(--color-text);
  margin-bottom: var(--space-2);
}

.form-label--required::after {
  content: ' *';
  color: var(--color-error);
}

.form-input,
.form-textarea,
.form-select {
  width: 100%;
  padding: var(--space-3) var(--space-4);
  font-size: var(--fs-base);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-md);
  background: var(--color-bg-card);
  transition: border-color var(--transition-fast), box-shadow var(--transition-fast);
  min-height: 48px;
}

.form-input:focus,
.form-textarea:focus,
.form-select:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

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

.form-textarea {
  resize: vertical;
  min-height: 150px;
}

.form-checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--space-3);
}

.form-checkbox input[type="checkbox"] {
  width: 20px;
  height: 20px;
  margin-top: 2px;
  flex-shrink: 0;
  accent-color: var(--color-accent);
}

.form-checkbox label {
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
  line-height: var(--lh-normal);
}

.form-helper {
  font-size: var(--fs-xs);
  color: var(--color-text-muted);
  margin-top: var(--space-1);
}

.form-error {
  font-size: var(--fs-xs);
  color: var(--color-error);
  margin-top: var(--space-1);
}

/* Honeypot */
.form-hp {
  position: absolute;
  left: -9999px;
  opacity: 0;
  height: 0;
  width: 0;
  overflow: hidden;
}

/* ── Breadcrumb ────────────────────────────────────────────────────────── */
.breadcrumb,
nav.breadcrumb {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-4);
  font-size: var(--fs-sm);
}

.breadcrumb ol,
.breadcrumb ul {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  list-style: none !important;
  padding: 0;
  margin: 0;
}

.breadcrumb li {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  margin: 0;
  padding: 0;
  list-style: none !important;
  color: inherit;
}

.breadcrumb li:not(:last-child)::after {
  content: '/';
  color: var(--color-text-muted);
  font-weight: 300;
  opacity: 0.6;
}

.breadcrumb a {
  color: var(--color-text-secondary);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.page-hero .breadcrumb,
.page-hero .breadcrumb a,
.section--dark .breadcrumb,
.section--dark .breadcrumb a {
  color: rgba(255, 255, 255, 0.75);
}

.page-hero .breadcrumb a:hover,
.section--dark .breadcrumb a:hover {
  color: #FFFFFF;
}

.page-hero .breadcrumb li:not(:last-child)::after,
.section--dark .breadcrumb li:not(:last-child)::after {
  color: rgba(255, 255, 255, 0.4);
}

/* ── Gallery ───────────────────────────────────────────────────────────── */
.gallery {
  display: grid;
  gap: var(--space-4);
  grid-template-columns: 1fr;
}

@media (min-width: 640px) {
  .gallery { grid-template-columns: repeat(2, 1fr); }
}

.gallery__item {
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}

.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery__item:hover img {
  transform: scale(1.03);
}

/* ── CTA Section ───────────────────────────────────────────────────────── */
.cta-section {
  text-align: center;
  padding: var(--space-16) var(--container-padding);
  background: var(--color-hero-bg);
  color: var(--color-hero-text);
  border-radius: var(--radius-xl);
}

.cta-section h2 {
  color: var(--color-hero-text);
}

.cta-section p {
  color: var(--color-hero-muted);
  margin-left: auto;
  margin-right: auto;
}

.cta-section .btn--primary {
  background-color: white;
  color: var(--color-hero-bg);
  border-color: white;
}

.cta-section .btn--primary:hover {
  background-color: var(--color-bg-alt);
  border-color: var(--color-bg-alt);
}

/* ── Trust indicators (homepage) ───────────────────────────────────────── */
.trust-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--space-4);
}

@media (min-width: 480px) {
  .trust-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .trust-grid { grid-template-columns: repeat(3, 1fr); gap: var(--space-6); }
}

@media (min-width: 1024px) {
  .trust-grid { grid-template-columns: repeat(4, 1fr); }
}

.trust-item {
  padding: var(--space-5);
  background: var(--color-bg-card);
  border-radius: var(--radius-lg);
  border: 1px solid var(--color-border-light);
  transition: box-shadow var(--transition-base);
}

.trust-item:hover {
  box-shadow: var(--shadow-md);
}

.trust-item__year {
  font-size: var(--fs-2xl);
  font-weight: var(--fw-bold);
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--space-2);
}

.trust-item__text {
  font-size: var(--fs-sm);
  color: var(--color-text-secondary);
  margin-bottom: 0;
}

/* ── Pagination Component ─────────────────────────────────────────────── */
.pagination {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 3.5rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.pagination__item {
  display: inline-flex;
}

.pagination__link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 44px;
  height: 44px;
  padding: 0 0.85rem;
  font-size: 0.9375rem;
  font-weight: 600;
  color: #0F172A;
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: 0.5rem;
  text-decoration: none;
  transition: all 0.15s ease;
  cursor: pointer;
}

.pagination__link:hover:not(.pagination__link--active):not(.pagination__link--disabled) {
  background: #EFF6FF;
  border-color: #BFDBFE;
  color: #2563EB;
  transform: translateY(-1px);
}

.pagination__link--active {
  background: #2563EB !important;
  border-color: #2563EB !important;
  color: #FFFFFF !important;
  box-shadow: 0 4px 12px rgba(37, 99, 235, 0.28);
  cursor: default;
}

.pagination__link--disabled {
  opacity: 0.35;
  cursor: not-allowed;
  pointer-events: none;
  background: #F8FAFC;
  color: #94A3B8;
}

.pagination__info {
  width: 100%;
  text-align: center;
  font-size: 0.875rem;
  color: #64748B;
  margin-top: 0.75rem;
}

/* ── WhatsApp Component ─────────────────────────────────────────────────── */
.btn--whatsapp {
  background-color: #25D366 !important;
  border-color: #25D366 !important;
  color: #FFFFFF !important;
  font-weight: 700;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.75rem;
  box-shadow: 0 4px 14px rgba(37, 211, 102, 0.35);
  transition: all 0.2s ease;
  text-decoration: none;
}

.btn--whatsapp:hover {
  background-color: #1EBE5D !important;
  border-color: #1EBE5D !important;
  transform: translateY(-2px);
  box-shadow: 0 8px 22px rgba(37, 211, 102, 0.45);
  color: #FFFFFF !important;
}

.whatsapp-box {
  background: #FFFFFF;
  border: 1px solid #E2E8F0;
  border-radius: 1.25rem;
  padding: 2.5rem;
  box-shadow: 0 10px 30px -5px rgba(15, 23, 42, 0.06);
  text-align: center;
}

.whatsapp-box__icon {
  width: 80px;
  height: 80px;
  background: #DCFCE7;
  color: #16A34A;
  border-radius: 50%;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.whatsapp-box__number {
  font-size: 1.85rem;
  font-weight: 800;
  color: #0F172A;
  margin: 1rem 0;
  letter-spacing: 0.02em;
}

.whatsapp-box__number a {
  color: #0F172A;
  text-decoration: none;
  transition: color 0.15s ease;
}

.whatsapp-box__number a:hover {
  color: #25D366;
}

/* Floating WhatsApp Button */
.whatsapp-float {
  position: fixed;
  bottom: 24px;
  right: 24px;
  width: 60px;
  height: 60px;
  background-color: #25D366;
  color: #FFFFFF;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 4px 16px rgba(37, 211, 102, 0.4);
  z-index: 999;
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

.whatsapp-float:hover {
  transform: scale(1.1);
  box-shadow: 0 8px 25px rgba(37, 211, 102, 0.55);
}