@import url('https://fonts.googleapis.com/css2?family=Montserrat:wght@400;600;700;900&family=Poppins:wght@300;400;500&display=swap');

:root {
  --bg: #0a0a0f;
  --card: #1a1a28;
  --card2: #111120;
  --accent: #6c63ff;
  --accent2: #ff6584;
  --accent3: #43e97b;
  --gold: #ffd700;
  --silver: #c0c0c0;
  --bronze: #cd7f32;
  --text: #f0f0f8;
  --muted: #9090aa;
  --border: rgba(108,99,255,0.2);
  --font-head: 'Montserrat', sans-serif;
  --font-body: 'Poppins', sans-serif;
}

*, *::before, *::after { margin:0; padding:0; box-sizing:border-box; }
html { scroll-behavior: smooth; }
body { font-family: var(--font-body); background: var(--bg); color: var(--text); overflow-x: hidden; }
a { text-decoration: none; color: inherit; }
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 4px; }

/* NAVBAR */
.navbar {
  position: fixed; top:0; left:0; right:0; z-index:999;
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 32px; height: 56px;
  background: rgba(10,10,15,0.95);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
}
.nav-logo { font-family: var(--font-head); font-size: 1.6rem; font-weight: 900; }
.nav-logo span { color: var(--accent); }
.nav-right a { font-size: 0.92rem; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; color: var(--muted); transition: color 0.3s; }
.nav-right a:hover { color: var(--accent); }

/* HERO */
.cert-hero {
  min-height: 55vh;
  display: flex; align-items: center; justify-content: center;
  padding: 90px 60px 60px;
  position: relative; overflow: hidden; text-align: center;
}
.cert-hero-bg {
  position: absolute; inset: 0;
  background: radial-gradient(ellipse at 50% 0%, rgba(108,99,255,0.2) 0%, transparent 65%);
  pointer-events: none;
}
.cert-hero-content { position: relative; z-index: 1; max-width: 700px; }
.cert-label { font-size: 0.82rem; font-weight: 700; letter-spacing: 4px; text-transform: uppercase; color: var(--gold); margin-bottom: 14px; }
.cert-title { font-family: var(--font-head); font-size: clamp(44px, 8vw, 100px); font-weight: 900; line-height: 1; letter-spacing: 2px; margin-bottom: 20px; }
.cert-title span {
  background: linear-gradient(90deg, var(--gold), var(--accent2));
  -webkit-background-clip: text; -webkit-text-fill-color: transparent; background-clip: text;
}
.cert-sub { font-size: 1rem; color: var(--muted); line-height: 1.85; border-left: 3px solid var(--gold); padding-left: 16px; text-align: left; }

/* SECTION */
.certs-section { padding: 60px 60px 100px; max-width: 1300px; margin: 0 auto; }

/* GRID */
.certs-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 28px; }

/* CARD */
.cert-card {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 24px;
  overflow: hidden;
  transition: all 0.4s ease;
  opacity: 0;
  transform: translateY(30px);
  display: flex;
  flex-direction: column;
}
.cert-card.visible { opacity: 1; transform: translateY(0); }
.cert-card:hover {
  border-color: var(--gold);
  transform: translateY(-8px);
  box-shadow: 0 20px 60px rgba(255,215,0,0.12);
}

/* IMAGE WRAP */
.cert-img-wrap {
  position: relative;
  width: 100%;
  height: 220px;
  overflow: hidden;
  background: var(--card2);
  flex-shrink: 0;
}

/* Actual cert image */
.cert-img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: contain;
  object-position: center;
  z-index: 2;
  background: #0a0a0f;
  transition: transform 0.5s ease;
}
.cert-card:hover .cert-img { transform: scale(1.04); }

/* Placeholder */
.cert-placeholder {
  position: absolute; inset: 0; z-index: 1;
  display: flex; flex-direction: column;
  align-items: center; justify-content: center; gap: 10px;
  background: linear-gradient(135deg, var(--card2), #1a1a35);
}
.cert-placeholder-icon { font-size: 4rem; animation: floatCert 3s ease-in-out infinite; }
@keyframes floatCert {
  0%,100% { transform: translateY(0) rotate(-3deg); }
  50% { transform: translateY(-10px) rotate(3deg); }
}
.cert-placeholder-name { font-family: var(--font-head); font-size: 0.8rem; font-weight: 800; letter-spacing: 2px; text-transform: uppercase; color: var(--muted); }

/* Shine effect */
.cert-shine {
  position: absolute; inset: 0; z-index: 3;
  background: linear-gradient(135deg, rgba(255,255,255,0.06) 0%, transparent 50%, rgba(255,255,255,0.02) 100%);
  pointer-events: none;
}

/* Badge */
.cert-badge-wrap { position: absolute; top: 14px; right: 14px; z-index: 4; }
.cert-badge {
  font-family: var(--font-head);
  font-size: 0.62rem; font-weight: 900;
  letter-spacing: 2px; text-transform: uppercase;
  padding: 5px 12px; border-radius: 20px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  color: #fff;
  box-shadow: 0 4px 16px rgba(108,99,255,0.4);
}
.silver-badge { background: linear-gradient(90deg, #a0a0a0, #d0d0d0); color: #0a0a0f; }
.bronze-badge { background: linear-gradient(90deg, #cd7f32, #e8a060); color: #0a0a0f; }
.upcoming-badge { background: rgba(108,99,255,0.2); border: 1px solid var(--border); color: var(--muted); box-shadow: none; }

/* CERT INFO */
.cert-info { padding: 22px 22px 24px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.cert-issuer { font-size: 0.72rem; font-weight: 700; letter-spacing: 2px; text-transform: uppercase; color: var(--gold); }
.cert-name { font-family: var(--font-head); font-size: 1rem; font-weight: 900; color: var(--text); line-height: 1.3; }
.cert-desc { font-size: 0.82rem; color: var(--muted); line-height: 1.75; }
.cert-desc strong { color: var(--text); }
.cert-meta { display: flex; flex-wrap: wrap; gap: 6px; }
.cert-tag { font-size: 0.68rem; font-weight: 700; letter-spacing: 1px; text-transform: uppercase; padding: 4px 10px; border-radius: 20px; border: 1px solid var(--border); color: var(--muted); background: var(--card2); }

/* VIEW BUTTON */
.cert-view-btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  margin-top: auto;
  padding: 12px 22px;
  border: none;
  border-radius: 50px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  color: #fff;
  font-family: var(--font-head);
  font-size: 0.8rem;
  font-weight: 800;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  cursor: pointer;
  transition: all 0.3s;
  align-self: flex-start;
  box-shadow: 0 4px 20px rgba(108,99,255,0.35);
}
.cert-view-btn:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(108,99,255,0.55);
}

/* PDF LIGHTBOX */
.pdf-lightbox {
  display: none;
  position: fixed; inset: 0; z-index: 9999;
  align-items: center; justify-content: center;
}
.pdf-lightbox.active { display: flex; }

.pdf-lb-overlay {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.92);
  cursor: pointer;
}

.pdf-lb-box {
  position: relative; z-index: 2;
  width: 88vw; height: 88vh;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.pdf-lb-close {
  position: absolute; top: 14px; right: 16px;
  background: var(--accent2);
  border: none; color: #fff;
  font-family: var(--font-head);
  font-size: 0.8rem; font-weight: 800;
  letter-spacing: 1px;
  padding: 8px 18px; border-radius: 30px;
  cursor: pointer; z-index: 10;
  transition: all 0.3s;
}
.pdf-lb-close:hover { background: #ff3366; transform: scale(1.05); }

#pdf-frame {
  width: 100%; flex: 1;
  border: none;
  border-radius: 0 0 20px 20px;
}

/* AOS */
[data-aos] { opacity: 0; transform: translateY(30px); transition: opacity 0.6s ease, transform 0.6s ease; }
[data-aos].visible { opacity: 1; transform: translateY(0); }

/* FOOTER */
.footer {
  background: var(--card); border-top: 1px solid var(--border);
  padding: 28px 60px;
  display: flex; justify-content: space-between; align-items: center;
  font-size: 0.9rem; color: var(--muted);
}
.footer a { color: var(--gold); transition: color 0.3s; }
.footer a:hover { color: var(--text); }

/* RESPONSIVE */
@media (max-width: 1024px) { .certs-grid { grid-template-columns: repeat(2,1fr); } .certs-section { padding: 40px 24px 80px; } }
@media (max-width: 640px) { 
  .certs-grid { grid-template-columns: 1fr; } 
  .cert-hero { padding: 80px 20px 40px; } 
  .footer { flex-direction: column; gap: 10px; text-align: center; padding: 24px 20px; } 
  .pdf-lb-box { width: 95vw; height: 95vh; }
}
@media (max-width: 400px) {
  .cert-title { font-size: 32px; }
  .cert-hero { padding: 70px 16px 30px; }
}