/* Credentials pages — matches the main portfolio dark theme (#0f0f0f, Inter + Roboto Mono).
   Per-certificate brand color is passed in via the inline --accent / --accent-bright vars. */

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

:root {
  --bg: #0f0f0f;
  --surface: rgba(255, 255, 255, 0.03);
  --surface-2: rgba(255, 255, 255, 0.06);
  --border: rgba(255, 255, 255, 0.10);
  --text: #ffffff;
  --muted: rgba(255, 255, 255, 0.62);
  --faint: rgba(255, 255, 255, 0.42);
  --accent: #8a8a8a;         /* overridden per card */
  --accent-bright: #cfcfcf;  /* overridden per card */
}

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

a { color: inherit; text-decoration: none; }

.mono {
  font-family: "Roboto Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

.wrap { width: 100%; max-width: 1120px; margin: 0 auto; padding: 0 28px; }

/* ---------- Header ---------- */
.cred-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgba(15, 15, 15, 0.86);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid var(--border);
}
.cred-header .wrap {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.cred-logo { font-weight: 600; letter-spacing: 0.2px; font-size: 15px; }
.cred-logo span { color: var(--faint); }
.back-link {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--muted);
  transition: color 0.2s ease;
}
.back-link:hover { color: var(--text); }
.back-link svg { width: 15px; height: 15px; }

/* ---------- Hero ---------- */
.cred-hero { padding: 84px 0 40px; }
.eyebrow {
  font-size: 11.5px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--faint);
  margin-bottom: 20px;
}
.cred-hero h1 {
  font-size: clamp(38px, 6vw, 68px);
  font-weight: 600;
  letter-spacing: -1.5px;
  line-height: 1.02;
}
.cred-hero h1 .dot { color: var(--faint); }
.cred-hero p.lead {
  margin-top: 18px;
  max-width: 560px;
  color: var(--muted);
  font-size: 16px;
}
.cred-count {
  margin-top: 26px;
  display: inline-flex;
  gap: 10px;
  align-items: baseline;
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--faint);
}
.cred-count b { color: var(--text); font-size: 13px; }

/* ---------- Gallery grid ---------- */
.cred-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 26px;
  padding: 24px 0 90px;
}

.cred-card {
  position: relative;
  display: block;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: var(--surface);
  padding: 22px 22px 24px;
  overflow: hidden;
  transition: transform 0.4s cubic-bezier(0.16, 1, 0.3, 1),
              border-color 0.4s ease, background 0.4s ease;
}
/* soft brand glow behind each frame */
.cred-card::before {
  content: "";
  position: absolute;
  inset: -40% 20% auto 20%;
  height: 260px;
  background: radial-gradient(closest-side, var(--accent), transparent 70%);
  opacity: 0.28;
  filter: blur(20px);
  transition: opacity 0.4s ease;
  pointer-events: none;
}
.cred-card:hover {
  transform: translateY(-6px);
  border-color: color-mix(in srgb, var(--accent) 55%, var(--border));
  background: var(--surface-2);
}
.cred-card:hover::before { opacity: 0.5; }

.frame {
  position: relative;
  border-radius: 10px;
  padding: 14px;
  background: #141414;
  border: 1px solid rgba(255, 255, 255, 0.07);
  box-shadow: 0 20px 45px -25px rgba(0, 0, 0, 0.9);
}
.frame img {
  display: block;
  width: 100%;
  height: auto;
  border-radius: 4px;
}

.cred-meta { position: relative; margin-top: 20px; }
.cred-track {
  font-size: 11px;
  letter-spacing: 2.5px;
  text-transform: uppercase;
  color: var(--accent-bright);
  margin-bottom: 9px;
}
.cred-card h2 {
  font-size: 21px;
  font-weight: 600;
  letter-spacing: -0.4px;
}
.cred-sub {
  margin-top: 5px;
  color: var(--muted);
  font-size: 13.5px;
}
.cred-cta {
  margin-top: 18px;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 12.5px;
  letter-spacing: 1px;
  color: var(--text);
}
.cred-cta svg { width: 15px; height: 15px; transition: transform 0.3s ease; }
.cred-card:hover .cred-cta svg { transform: translateX(4px); }

/* ---------- Individual certificate page ---------- */
.show { padding: 70px 0 90px; }
.show-grid {
  display: grid;
  grid-template-columns: 1.35fr 1fr;
  gap: 54px;
  align-items: start;
}
.show-frame {
  position: relative;
  border-radius: 16px;
  padding: 22px;
  background: #141414;
  border: 1px solid rgba(255, 255, 255, 0.08);
  box-shadow: 0 40px 80px -40px rgba(0, 0, 0, 0.95);
}
.show-frame::before {
  content: "";
  position: absolute;
  inset: -30px;
  z-index: -1;
  background: radial-gradient(closest-side, var(--accent), transparent 72%);
  opacity: 0.34;
  filter: blur(40px);
}
.show-frame img { display: block; width: 100%; height: auto; border-radius: 6px; }

.show-track {
  font-size: 11.5px;
  letter-spacing: 3px;
  text-transform: uppercase;
  color: var(--accent-bright);
  margin-bottom: 18px;
}
.show-info h1 {
  font-size: clamp(30px, 4vw, 44px);
  font-weight: 600;
  letter-spacing: -1px;
  line-height: 1.05;
}
.show-info .desc {
  margin-top: 20px;
  color: var(--muted);
  font-size: 15.5px;
  max-width: 44ch;
}

.facts {
  margin-top: 30px;
  border-top: 1px solid var(--border);
}
.fact {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 0;
  border-bottom: 1px solid var(--border);
  font-size: 13.5px;
}
.fact .k {
  color: var(--faint);
  letter-spacing: 1.5px;
  text-transform: uppercase;
  font-size: 11px;
}
.fact .v { color: var(--text); text-align: right; }

.show-actions { margin-top: 32px; display: flex; flex-wrap: wrap; gap: 12px; }
.btn {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  padding: 12px 20px;
  border-radius: 10px;
  font-size: 13.5px;
  font-weight: 500;
  letter-spacing: 0.2px;
  border: 1px solid var(--border);
  transition: transform 0.25s ease, background 0.25s ease, border-color 0.25s ease;
}
.btn svg { width: 16px; height: 16px; }
.btn-primary { background: #fff; color: #0f0f0f; border-color: #fff; }
.btn-primary:hover { transform: translateY(-2px); background: #ececec; }
.btn-ghost { color: var(--text); background: transparent; }
.btn-ghost:hover { transform: translateY(-2px); border-color: var(--accent-bright); }

/* ---------- Footer ---------- */
.cred-footer {
  margin-top: auto;
  border-top: 1px solid var(--border);
  padding: 26px 0;
}
.cred-footer .wrap {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  flex-wrap: wrap;
  color: var(--faint);
  font-size: 12.5px;
}
.cred-footer a { color: var(--muted); transition: color 0.2s ease; }
.cred-footer a:hover { color: var(--text); }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .cred-grid { grid-template-columns: 1fr; }
  .show-grid { grid-template-columns: 1fr; gap: 36px; }
}
@media (max-width: 520px) {
  .wrap { padding: 0 18px; }
  .cred-hero { padding: 56px 0 28px; }
}

@media (prefers-reduced-motion: reduce) {
  * { transition: none !important; scroll-behavior: auto !important; }
}