*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

/* ── PAGE HEADER ── */
.certif-header {
  text-align: center;
  padding: 3.5rem 1rem 2rem;
  animation: fadeUp .6s ease both;
}

.certif-badge {
  display: inline-block;
  padding: .3rem .9rem;
  border: 1px solid var(--border-accent);
  border-radius: 99px;
  font-size: .75rem;
  font-weight: 600;
  letter-spacing: .08em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: 1rem;
  background: var(--accent-soft);
}

.certif-header h1 {
  font-family: 'Syne', sans-serif;
  font-size: clamp(2rem, 5vw, 3.2rem);
  font-weight: 800;
  letter-spacing: -.02em;
  background: linear-gradient(135deg, var(--text) 30%, var(--accent-light));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: .5rem;
}

.certif-header h1::after {
  content: '';
  display: block;
  width: 48px;
  height: 3px;
  border-radius: 3px;
  margin: 14px auto 0;
  background: linear-gradient(90deg, var(--accent-dark), var(--accent-light));
  transition: width 0.4s;
}

.certif-header h1:hover::after { width: 96px; }

.certif-header .subtitle {
  color: var(--text-muted);
  font-size: .95rem;
  margin-bottom: .8rem;
  margin-top: 16px;
}

.certif-count {
  font-size: .88rem;
  color: var(--text-muted);
  font-weight: 500;
  letter-spacing: .05em;
  margin-top: 8px;
}

.certif-count span {
  font-weight: 700;
  color: var(--accent-light);
}

/* ── FILTERS ── */
.filter-tabs {
  display: flex;
  gap: .5rem;
  justify-content: center;
  margin: 1.5rem 0 2.5rem;
  animation: fadeUp .5s .1s ease both;
}

.filter-tab {
  padding: .4rem 1.1rem;
  border-radius: 99px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  color: var(--text-muted);
  font-family: 'Space Grotesk', sans-serif;
  font-size: .83rem;
  font-weight: 500;
  cursor: pointer;
  transition: all var(--transition);
}

.filter-tab:hover {
  color: var(--text);
  border-color: var(--border-accent);
}

.filter-tab.active {
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  border-color: var(--accent);
  color: #fff;
  box-shadow: 0 4px 14px var(--accent-glow);
}

/* ── GRID ── */
#content { padding: 0 1.5rem 5rem; }

.certif-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 28px;
  max-width: 1200px;
  margin: 0 auto;
  animation: fadeUp .5s .15s ease both;
}

/* ── CARD ── */
.certif-card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow);
  overflow: hidden;
  cursor: pointer;
  display: flex;
  flex-direction: column;
  transition: border-color var(--transition), box-shadow var(--transition), transform var(--transition);
}

.certif-card:hover {
  border-color: var(--border-accent);
  box-shadow: var(--shadow), 0 0 36px var(--accent-glow);
  transform: translateY(-5px);
}

/* Thumb image */
.card-thumb {
  width: 100%;
  height: 175px;
  position: relative;
  overflow: hidden;
  background: var(--accent-soft);
}

.card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform .4s;
}

.certif-card:hover .card-thumb img { transform: scale(1.05); }

.thumb-overlay {
  position: absolute;
  inset: 0;
  background: rgba(124, 58, 237, 0.4);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  transition: opacity .25s;
}

.certif-card:hover .thumb-overlay { opacity: 1; }
.thumb-overlay svg { width: 26px; height: 26px; color: #fff; }

/* Thumb PDF */
.card-thumb-pdf {
  width: 100%;
  height: 175px;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: .6rem;
  background: var(--accent-soft);
  border-bottom: 1px solid var(--border-accent);
  position: relative;
  overflow: hidden;
}

.card-thumb-pdf::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.card-thumb-pdf svg {
  width: 42px;
  height: 42px;
  color: var(--accent);
  opacity: .65;
}

.card-thumb-pdf span {
  font-size: .7rem;
  font-weight: 700;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--accent-light);
}

/* Card header */
.card-header {
  padding: 18px 22px 12px;
  border-bottom: 1px solid var(--border);
  position: relative;
  overflow: hidden;
}

.card-header::before {
  content: '';
  position: absolute;
  top: -40px;
  right: -40px;
  width: 120px;
  height: 120px;
  background: radial-gradient(circle, var(--accent-glow) 0%, transparent 70%);
  pointer-events: none;
}

.card-date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent-light);
  background: var(--accent-soft);
  border: 1px solid var(--border-accent);
  padding: 4px 12px;
  border-radius: 100px;
}

.card-date svg { width: 13px; height: 13px; }

/* Card body */
.card-body {
  padding: 16px 22px 12px;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.card-title {
  font-family: 'Syne', sans-serif;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
  line-height: 1.4;
  margin: 0;
  transition: color var(--transition);
}

.certif-card:hover .card-title { color: var(--accent-light); }

.certification-note {
  font-size: .88rem;
  color: var(--text-muted);
  line-height: 1.6;
}

/* Card footer */
.card-footer {
  padding: 14px 22px;
  border-top: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.tag {
  font-size: .68rem;
  font-weight: 700;
  letter-spacing: .08em;
  text-transform: uppercase;
  padding: .22rem .65rem;
  border-radius: 99px;
}

.tag-pdf {
  background: var(--accent-soft);
  color: var(--accent);
  border: 1px solid var(--border-accent);
}

.tag-img {
  background: rgba(167, 139, 250, .12);
  color: var(--accent-light);
  border: 1px solid rgba(167, 139, 250, 0.3);
}

.btn-lire {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 8px 18px;
  border: none;
  border-radius: 100px;
  background: linear-gradient(135deg, var(--accent-dark), var(--accent));
  color: #fff;
  font-family: 'Space Grotesk', sans-serif;
  font-size: .78rem;
  font-weight: 700;
  cursor: pointer;
  letter-spacing: .04em;
  white-space: nowrap;
  transition: all var(--transition);
}

.btn-lire:hover {
  box-shadow: 0 4px 18px var(--accent-glow);
  transform: translateY(-1px);
}

/* Card underline */
.card-underline {
  height: 2px;
  width: 0;
  background: linear-gradient(90deg, var(--accent-dark), var(--accent-light));
  border-radius: 0 0 var(--radius-xl) var(--radius-xl);
  transition: width 0.4s ease;
}

.certif-card:hover .card-underline { width: 100%; }

/* ── EMPTY STATE ── */
.empty-state {
  grid-column: 1 / -1;
  text-align: center;
  padding: 80px 20px;
  color: var(--text-muted);
}

.empty-state svg {
  width: 64px;
  height: 64px;
  margin: 0 auto 20px;
  opacity: .3;
}

.empty-state p { font-size: 1rem; }

/* ── MODAL ── */
.certif-modal {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 2000;
  background: rgba(0, 0, 0, 0.7);
  backdrop-filter: blur(8px);
  align-items: center;
  justify-content: center;
  padding: 1.5rem;
  animation: fadeIn .2s ease;
  overflow-y: auto;
}

.certif-modal.open { display: flex; }

@keyframes fadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}

.modal-inner {
  background: var(--bg-secondary);
  border: 1px solid var(--border-accent);
  border-radius: var(--radius-xl);
  width: 100%;
  max-width: 820px;
  max-height: 90vh;
  overflow-y: auto;
  position: relative;
  box-shadow: var(--shadow), 0 0 80px var(--accent-glow);
  animation: slideUp .4s cubic-bezier(0.34, 1.56, 0.64, 1);
}

@keyframes slideUp {
  from { opacity: 0; transform: translateY(40px) scale(0.97); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.modal-header {
  padding: 1.8rem 2rem 1.2rem;
  border-bottom: 1px solid var(--border);
  position: relative;
}

.modal-date {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  font-size: 0.72rem;
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: .08em;
  color: var(--accent-light);
  background: var(--accent-soft);
  border: 1px solid var(--border-accent);
  padding: 4px 12px;
  border-radius: 100px;
  margin-bottom: .8rem;
}

.modal-titre {
  font-family: 'Syne', sans-serif;
  font-size: clamp(1.3rem, 3vw, 1.8rem);
  font-weight: 800;
  color: var(--text);
  padding-right: 2.5rem;
  line-height: 1.3;
}

.modal-close {
  position: absolute;
  top: 1.2rem;
  right: 1.2rem;
  width: 36px;
  height: 36px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--accent-soft);
  border: 1px solid var(--border-accent);
  border-radius: 50%;
  cursor: pointer;
  color: var(--text-muted);
  font-size: 1rem;
  transition: all var(--transition);
}

.modal-close:hover {
  color: var(--accent);
  transform: rotate(90deg);
  border-color: var(--accent);
}

.modal-body { padding: 1.5rem 2rem 2rem; }

.modal-media {
  width: 100%;
  border-radius: var(--radius-lg);
  overflow: hidden;
  margin-bottom: 1.5rem;
  border: 1px solid var(--border-accent);
}

.modal-media img { width: 100%; display: block; }
.modal-media iframe { width: 100%; height: 480px; border: none; display: block; }

.modal-section-label {
  font-size: .72rem;
  font-weight: 700;
  letter-spacing: .1em;
  text-transform: uppercase;
  color: var(--accent-light);
  margin-bottom: .5rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.modal-section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border-accent);
}

.modal-org {
  font-size: .95rem;
  color: var(--text-muted);
  margin-bottom: 1.2rem;
  line-height: 1.7;
}

/* ── ANIMATIONS ── */
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ── RESPONSIVE ── */
@media (max-width: 768px) {
  .certif-grid { grid-template-columns: 1fr; }
  #content { padding: 0 1rem 4rem; }
  .modal-header, .modal-body { padding: 1.2rem 1.2rem; }
}