/* =============================================
   COURSES & CERTIFICATES PAGE
   ============================================= */

.courses-hero {
  padding: 8rem 0 5rem;
  text-align: center;
}

.courses-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
  gap: 2rem;
  padding: 2rem 0 5rem;
}

/* Envelope Card */
.cert-envelope {
  perspective: 1000px;
  cursor: pointer;
  height: 360px;
}

.cert-envelope-inner {
  width: 100%;
  height: 100%;
  position: relative;
  transition: transform 0.7s cubic-bezier(0.4, 0, 0.2, 1);
  transform-style: preserve-3d;
}

.cert-envelope:hover .cert-envelope-inner {
  transform: translateY(-8px);
  box-shadow: 0 30px 60px rgba(0,0,0,0.4);
}

/* Envelope body */
.envelope-body {
  width: 100%;
  height: 100%;
  position: absolute;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

/* Envelope flap (top half diagonal) */
.envelope-flap {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 55%;
  background: linear-gradient(135deg, var(--bg-secondary) 0%, var(--bg-card) 100%);
  border-bottom: 1px solid var(--border-color);
  clip-path: polygon(0 0, 100% 0, 100% 70%, 50% 100%, 0 70%);
  z-index: 2;
  overflow: hidden;
  transition: height var(--transition-med), clip-path var(--transition-med);
}

.cert-envelope.open .envelope-flap {
  height: 30%;
  clip-path: polygon(0 100%, 100% 100%, 100% 100%, 50% 0%, 0 100%);
}

.envelope-flap-pattern {
  position: absolute;
  inset: 0;
  background: repeating-linear-gradient(
    45deg,
    transparent,
    transparent 10px,
    rgba(212, 175, 55, 0.04) 10px,
    rgba(212, 175, 55, 0.04) 20px
  );
}

.envelope-seal {
  position: absolute;
  bottom: -1px;
  left: 50%;
  transform: translateX(-50%) translateY(50%);
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--gradient-gold);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: #0a0e1a;
  font-weight: 700;
  font-family: var(--font-display);
  box-shadow: 0 4px 12px rgba(212, 175, 55, 0.4);
  z-index: 3;
  transition: var(--transition-med);
}

.cert-envelope.open .envelope-seal {
  transform: translateX(-50%) translateY(50%) scale(0);
}

/* Certificate peek from bottom */
.cert-peek {
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 55%;
  z-index: 1;
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  transition: height var(--transition-med);
}

.cert-envelope.open .cert-peek {
  height: 75%;
}

.cert-peek-img {
  width: 100%;
  height: 80px;
  object-fit: cover;
  border-radius: 8px;
  border: 1px solid var(--border-color);
  margin-bottom: 0.75rem;
  transition: height var(--transition-med);
}

.cert-envelope.open .cert-peek-img {
  height: 120px;
}

.cert-peek-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: var(--text-primary);
  margin-bottom: 0.25rem;
  line-height: 1.3;
}

.cert-peek-org {
  font-family: var(--font-sans);
  font-size: 0.78rem;
  color: var(--accent-gold);
}

.cert-click-hint {
  position: absolute;
  top: 1rem;
  right: 1rem;
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  color: var(--text-muted);
  text-transform: uppercase;
  z-index: 5;
  display: flex;
  align-items: center;
  gap: 0.3rem;
  opacity: 0.6;
  transition: opacity var(--transition-fast);
}

.cert-envelope:hover .cert-click-hint {
  opacity: 1;
  color: var(--accent-gold);
}

/* Certificate Modal */
.cert-modal-header {
  display: flex;
  gap: 2rem;
  align-items: flex-start;
  margin-bottom: 2rem;
  flex-wrap: wrap;
}

.cert-modal-img {
  width: 280px;
  height: 180px;
  object-fit: cover;
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-color);
  flex-shrink: 0;
}

.cert-modal-img-placeholder {
  width: 280px;
  height: 180px;
  background: var(--bg-secondary);
  border-radius: var(--border-radius-sm);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3rem;
  flex-shrink: 0;
}

.cert-modal-info { flex: 1; }

.cert-modal-org {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--accent-gold);
  margin-bottom: 0.5rem;
}

.cert-modal-title {
  font-size: clamp(1.2rem, 2.5vw, 1.6rem);
  margin-bottom: 1rem;
}

.cert-modal-details {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
  margin-bottom: 2rem;
  padding: 1.5rem;
  background: var(--bg-secondary);
  border-radius: var(--border-radius-sm);
}

.cert-detail-item { }

.cert-detail-label {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.25rem;
}

.cert-detail-value {
  font-family: var(--font-sans);
  font-size: 0.9rem;
  color: var(--text-primary);
  font-weight: 500;
}

@media (max-width: 600px) {
  .cert-modal-header { flex-direction: column; }
  .cert-modal-img, .cert-modal-img-placeholder { width: 100%; }
  .cert-modal-details { grid-template-columns: 1fr; }
}

/* =============================================
   GALLERY PAGE STYLES
   ============================================= */

.gallery-hero {
  padding: 8rem 0 4rem;
  text-align: center;
}

.gallery-filter {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  justify-content: center;
  margin-bottom: 3rem;
}

.filter-btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.6rem 1.4rem;
  border-radius: var(--border-radius-full);
  font-family: var(--font-sans);
  font-size: 0.85rem;
  font-weight: 500;
  background: var(--bg-card);
  border: 1.5px solid var(--border-color);
  color: var(--text-secondary);
  transition: var(--transition-fast);
}

.filter-btn:hover,
.filter-btn.active {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  background: rgba(212, 175, 55, 0.06);
}

.gallery-masonry {
  columns: 4;
  column-gap: 1.25rem;
  padding: 0 0 5rem;
}

.gallery-item {
  break-inside: avoid;
  margin-bottom: 1.25rem;
  position: relative;
  border-radius: var(--border-radius-sm);
  overflow: hidden;
  cursor: pointer;
  border: 1px solid var(--border-color);
  transition: var(--transition-med);
}

.gallery-item:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-lg);
}

.gallery-item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  transition: transform 0.5s ease;
}

.gallery-item:hover img {
  transform: scale(1.05);
}

.gallery-item-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(to top, rgba(10,14,26,0.9) 0%, transparent 60%);
  opacity: 0;
  transition: opacity var(--transition-med);
  display: flex;
  flex-direction: column;
  justify-content: flex-end;
  padding: 1.25rem;
}

.gallery-item:hover .gallery-item-overlay {
  opacity: 1;
}

.gallery-item-title {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 600;
  color: #fff;
  margin-bottom: 0.2rem;
}

.gallery-item-tag {
  font-family: var(--font-mono);
  font-size: 0.68rem;
  letter-spacing: 0.1em;
  color: var(--accent-gold);
  text-transform: uppercase;
}

.gallery-item-placeholder {
  width: 100%;
  background: var(--bg-card);
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  padding: 3rem 1.5rem;
  text-align: center;
  gap: 0.75rem;
}

.gallery-placeholder-icon {
  font-size: 3rem;
  opacity: 0.3;
}

.gallery-placeholder-title {
  font-family: var(--font-sans);
  font-size: 0.85rem;
  color: var(--text-muted);
}

/* Lightbox */
.lightbox {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.95);
  z-index: 10000;
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--transition-med);
}

.lightbox.active {
  opacity: 1;
  pointer-events: all;
}

.lightbox-content {
  position: relative;
  max-width: 900px;
  width: 90%;
}

.lightbox-img {
  width: 100%;
  border-radius: var(--border-radius);
  border: 1px solid var(--border-color);
}

.lightbox-caption {
  text-align: center;
  margin-top: 1rem;
}

.lightbox-caption h3 {
  font-size: 1rem;
  margin-bottom: 0.25rem;
}

.lightbox-caption p {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.lightbox-close {
  position: absolute;
  top: -50px;
  right: 0;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  font-size: 1.2rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.lightbox-close:hover {
  background: rgba(212, 175, 55, 0.3);
}

.lightbox-nav {
  position: absolute;
  top: 50%;
  transform: translateY(-50%);
  width: 50px;
  height: 50px;
  border-radius: 50%;
  background: rgba(255,255,255,0.1);
  border: 1px solid rgba(255,255,255,0.2);
  color: #fff;
  font-size: 1.3rem;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: var(--transition-fast);
}

.lightbox-nav:hover {
  background: rgba(212, 175, 55, 0.3);
}

.lightbox-prev { left: -70px; }
.lightbox-next { right: -70px; }

@media (max-width: 1100px) {
  .gallery-masonry { columns: 3; }
}

@media (max-width: 768px) {
  .gallery-masonry { columns: 2; }
  .lightbox-prev { left: -55px; }
  .lightbox-next { right: -55px; }
}

@media (max-width: 480px) {
  .gallery-masonry { columns: 1; }
  .lightbox-prev, .lightbox-next { display: none; }
}

/* =============================================
   CONTACT PAGE STYLES
   ============================================= */

.contact-hero {
  padding: 8rem 0 5rem;
  text-align: center;
}

.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 4rem;
  padding: 2rem 0 6rem;
  align-items: start;
}

/* Contact Info */
.contact-info { }

.contact-info-title {
  font-size: clamp(1.5rem, 2.5vw, 2rem);
  margin-bottom: 0.5rem;
}

.contact-info-sub {
  color: var(--text-secondary);
  margin-bottom: 2.5rem;
  font-size: 1rem;
}

.contact-items {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
  margin-bottom: 3rem;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius);
  transition: var(--transition-med);
  text-decoration: none;
}

.contact-item:hover {
  border-color: var(--accent-gold);
  transform: translateX(4px);
  box-shadow: var(--shadow-gold);
}

.contact-item-icon {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--bg-secondary);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.2rem;
  flex-shrink: 0;
  transition: var(--transition-fast);
}

.contact-item:hover .contact-item-icon {
  background: rgba(212, 175, 55, 0.1);
  border-color: var(--accent-gold);
}

.contact-item-info { flex: 1; }

.contact-item-label {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.2rem;
}

.contact-item-value {
  font-family: var(--font-sans);
  font-size: 0.92rem;
  color: var(--text-primary);
  font-weight: 500;
}

.contact-social-links {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.contact-social-link {
  width: 46px;
  height: 46px;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
  color: var(--text-secondary);
  transition: var(--transition-med);
  text-decoration: none;
}

.contact-social-link:hover {
  border-color: var(--accent-gold);
  color: var(--accent-gold);
  transform: translateY(-3px);
  box-shadow: var(--shadow-gold);
}

/* Contact Form */
.contact-form-wrap {
  background: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: var(--border-radius-lg);
  padding: 2.5rem;
}

.contact-form-title {
  font-family: var(--font-display);
  font-size: 1.4rem;
  margin-bottom: 0.3rem;
}

.contact-form-sub {
  font-size: 0.9rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-label {
  display: block;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 0.5rem;
}

.form-control {
  width: 100%;
  padding: 0.9rem 1.2rem;
  background: var(--bg-secondary);
  border: 1.5px solid var(--border-color);
  border-radius: var(--border-radius-sm);
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 0.95rem;
  transition: var(--transition-fast);
}

.form-control:focus {
  border-color: var(--accent-gold);
  outline: none;
  box-shadow: 0 0 0 3px rgba(212, 175, 55, 0.12);
}

.form-control::placeholder {
  color: var(--text-muted);
}

textarea.form-control {
  resize: vertical;
  min-height: 140px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-submit {
  display: flex;
  justify-content: flex-end;
}

/* Map & Office */
.contact-office {
  padding: 4rem 0 6rem;
  background: var(--bg-secondary);
}

.office-grid {
  display: flex;
  flex-direction: row;
  justify-content: center; /* Centers cards if they don't fill the whole width */
  gap: 20px;              /* Adds space between the cards */
  flex-wrap: wrap;        /* Important: Allows cards to stack on small mobile screens */
  width: 100%;
}

.office-card {
  flex: 1;                /* Makes all cards take up equal width */
  min-width: 300px;       /* Prevents cards from getting too squished */
  max-width: 400px;       /* Keeps them from getting too wide on huge screens */
  text-align: center;
}

/* Responsive adjustment for small phones */
@media (max-width: 768px) {
  .office-card {
    flex: 1 1 100%;       /* On mobile, cards will take full width and stack */
  }
}

@media (max-width: 900px) {
  .contact-layout { grid-template-columns: 1fr; gap: 3rem; }
  .office-grid { grid-template-columns: 1fr; }
}

@media (max-width: 480px) {
  .form-row { grid-template-columns: 1fr; }
  .contact-form-wrap { padding: 1.75rem 1.25rem; }
}