/* ================================================================
   certs.css — Certifications: Siena.film full-viewport scroll
   ================================================================ */

/* ── Page wrapper: scroll snap container ── */
.certs-page {
  position: relative;
}

/* ── Hero header ── */
.certs-header {
  height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  overflow: hidden;
  flex-direction: column;
  gap: 2rem;
  text-align: center;
}

.certs-header-ascii {
  font-family: var(--font-mono);
  font-size: clamp(0.18rem, 0.42vw, 0.4rem);
  line-height: 1.15;
  color: var(--green);
  opacity: 0.18;
  white-space: pre;
  pointer-events: none;
  user-select: none;
  animation: fadeIn 1s ease 0.5s both;
}

.certs-header-content {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

.certs-header-eyebrow {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.4em;
  color: var(--green-dim);
  text-transform: uppercase;
}
.certs-header-eyebrow::before { content: '// '; }

.certs-header-title {
  font-family: var(--font-display);
  font-size: clamp(5rem, 14vw, 13rem);
  line-height: 0.85;
  letter-spacing: -0.01em;
  color: var(--green);
  text-transform: uppercase;
  text-shadow: var(--glow-lg);
}

.certs-stats {
  display: flex;
  gap: 0;
  border: 1px solid var(--border);
}

.certs-stat {
  display: flex;
  flex-direction: column;
  align-items: center;
  padding: 1rem 2.5rem;
  border-right: 1px solid var(--border);
  background: rgba(0,255,65,0.02);
}
.certs-stat:last-child { border-right: none; }

.certs-stat-num {
  font-family: var(--font-display);
  font-size: 2.5rem;
  color: var(--green);
  line-height: 1;
  text-shadow: var(--glow-sm);
}

.certs-stat-label {
  font-family: var(--font-mono);
  font-size: 0.52rem;
  letter-spacing: 0.2em;
  color: var(--text-dim);
  text-transform: uppercase;
  margin-top: 0.3rem;
}

.certs-scroll-hint {
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.25em;
  color: var(--text-dim);
  animation: pulse-fade 2.5s ease infinite;
}

@keyframes pulse-fade {
  0%,100%{opacity:0.4} 50%{opacity:1}
}

/* ── Side navigation dots ── */
.cert-nav-dots {
  position: fixed;
  right: 2.5rem;
  top: 50%;
  transform: translateY(-50%);
  z-index: 700;
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
  /* Hidden until user scrolls into cert sections */
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.7s ease;
}

.cert-nav-dots.visible {
  opacity: 1;
  pointer-events: all;
}

.cert-dot {
  width: 7px; height: 7px;
  border: 1px solid var(--text-dim);
  background: transparent;
  cursor: none;
  transition: all 0.25s ease;
  display: block;
  position: relative;
}

.cert-dot::after {
  content: attr(data-label);
  position: absolute;
  right: calc(100% + 0.75rem);
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--font-mono);
  font-size: 0.55rem;
  letter-spacing: 0.12em;
  color: var(--text-dim);
  white-space: nowrap;
  opacity: 0;
  transition: opacity 0.2s ease;
  text-transform: uppercase;
  pointer-events: none;
}

.cert-dot:hover::after,
.cert-dot.active::after { opacity: 1; }

.cert-dot.active,
.cert-dot:hover {
  background: var(--green);
  border-color: var(--green);
  box-shadow: var(--glow-xs);
  transform: scale(1.4);
}

/* ── Certificate fullscreen sections ── */
.cert-section {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 1fr 1fr;
  position: relative;
  overflow: hidden;
}

/* Left: certificate image panel */
.cert-visual {
  position: relative;
  overflow: hidden;
  background: var(--bg2);
}

.cert-img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  display: block;
  padding: 3rem;
  filter: drop-shadow(0 8px 40px rgba(0,0,0,0.6));
  transition: transform 0.8s var(--ease-out), filter 0.4s ease;
}

.cert-section:hover .cert-img {
  transform: scale(1.015);
  filter: drop-shadow(0 12px 60px rgba(0,0,0,0.5)) brightness(1.03);
}

/* Ambient glow behind cert image */
.cert-visual::before {
  content: '';
  position: absolute;
  inset: 10%;
  background: radial-gradient(ellipse, rgba(0,255,65,0.06) 0%, transparent 70%);
  pointer-events: none;
  z-index: 0;
}

.cert-img { position: relative; z-index: 1; }

/* Cert number watermark */
.cert-visual-num {
  position: absolute;
  bottom: 2rem;
  left: 2rem;
  font-family: var(--font-display);
  font-size: 8rem;
  line-height: 1;
  color: var(--border);
  letter-spacing: -0.04em;
  z-index: 0;
  user-select: none;
}

/* Right: info panel */
.cert-info {
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 5rem 4rem;
  border-left: 1px solid var(--border);
  position: relative;
  gap: 2rem;
}

/* Vertical line accent */
.cert-info::before {
  content: '';
  position: absolute;
  left: 0; top: 10%; bottom: 10%;
  width: 2px;
  background: linear-gradient(to bottom, transparent, var(--green), transparent);
  opacity: 0.3;
}

.cert-num-label {
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.35em;
  color: var(--text-dim);
  text-transform: uppercase;
}

.cert-issuer-tag {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-mono);
  font-size: 0.6rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.cert-issuer-dot {
  width: 6px; height: 6px;
  background: var(--green);
  flex-shrink: 0;
}
.cert-issuer-tag.amber .cert-issuer-dot { background: var(--amber); }
.cert-issuer-tag.amber { color: var(--amber); }
.cert-issuer-tag:not(.amber) { color: var(--green); }

.cert-title-large {
  font-family: var(--font-display);
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 0.95;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--green);
  text-shadow: var(--glow-sm);
}
.cert-title-large.amber-title { color: var(--amber); text-shadow: 0 0 20px rgba(255,176,0,0.2); }

.cert-credential-id {
  font-family: var(--font-mono);
  font-size: 0.62rem;
  letter-spacing: 0.08em;
  color: var(--text-dim);
  opacity: 0.7;
  word-break: break-all;
}

.cert-details-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1.25rem;
}

.cert-detail {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
  padding: 1rem;
  border: 1px solid var(--border);
  background: rgba(0,255,65,0.02);
}

.cert-detail-label {
  font-family: var(--font-mono);
  font-size: 0.52rem;
  letter-spacing: 0.2em;
  color: var(--text-dim);
  text-transform: uppercase;
}

.cert-detail-val {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text);
  letter-spacing: 0.04em;
}

.cert-status-badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-mono);
  font-size: 0.58rem;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  padding: 0.3rem 0.75rem;
  border: 1px solid var(--green-dark);
  color: var(--green);
  background: rgba(0,255,65,0.05);
  width: fit-content;
}
.cert-status-badge::before { content: '●'; font-size: 0.5rem; }

.cert-tags-row { display: flex; flex-wrap: wrap; gap: 0.4rem; }

/* Description */
.cert-description {
  font-size: 0.88rem;
  color: var(--text-dim);
  line-height: 1.75;
}

/* Divider between sections */
.cert-section + .cert-section {
  border-top: 1px solid var(--border);
}

/* Alternating layout — even certs flip */
.cert-section.flip { direction: rtl; }
.cert-section.flip > * { direction: ltr; }
.cert-section.flip .cert-info { border-left: none; border-right: 1px solid var(--border); }
.cert-section.flip .cert-info::before { left: auto; right: 0; }

/* ── Mobile ── */
@media (max-width: 900px) {
  .cert-section {
    grid-template-columns: 1fr;
    min-height: auto;
  }
  .cert-section.flip { direction: ltr; }
  .cert-section.flip .cert-info { border-right: none; border-top: 1px solid var(--border); }

  .cert-visual { min-height: 50vh; }
  .cert-img { padding: 2rem; }
  .cert-info { padding: 3rem 2rem; border-left: none; border-top: 1px solid var(--border); }
  .cert-info::before { display: none; }
  .cert-title-large { font-size: clamp(1.8rem, 7vw, 3rem); }
  .cert-nav-dots { right: 1rem; }
  .certs-stat { padding: 0.8rem 1.5rem; }
  .certs-header-title { font-size: clamp(4rem, 16vw, 8rem); }
}

@media (max-width: 480px) {
  .cert-details-grid { grid-template-columns: 1fr; }
  .certs-stats { flex-wrap: wrap; }
  .certs-stat { flex: 1; min-width: 120px; }
  .cert-nav-dots { display: none; }
}