/* ---------- Base ---------- */
html { scroll-behavior: smooth; }
body { overflow-x: hidden; }

/* Subtle grid background */
.bg-grid {
  position: fixed;
  inset: 0;
  z-index: -1;
  background-color: #020617;
  background-image:
    radial-gradient(ellipse 80% 50% at 50% -20%, rgba(16,185,129,0.15), transparent 60%),
    linear-gradient(rgba(15,23,42,0.6) 1px, transparent 1px),
    linear-gradient(90deg, rgba(15,23,42,0.6) 1px, transparent 1px);
  background-size: auto, 48px 48px, 48px 48px;
}

/* Navbar scrolled state */
#navbar.scrolled {
  background-color: rgba(2, 6, 23, 0.75);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(30, 41, 59, 0.6);
}

/* Section titles */
.section-title {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.5rem;
  font-weight: 700;
  color: #f1f5f9;
  margin-bottom: 2.5rem;
}
.section-title::after {
  content: "";
  flex: 1;
  height: 1px;
  max-width: 12rem;
  background: linear-gradient(90deg, rgba(16,185,129,0.5), transparent);
}

/* ---------- Terminal ---------- */
.terminal-window {
  border-radius: 10px;
  border: 1px solid rgba(16,185,129,0.25);
  background: #000;
  overflow: hidden;
}
.terminal-bar {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 10px 14px;
  background: #0f172a;
  border-bottom: 1px solid rgba(30,41,59,0.8);
}
.terminal-bar .dot {
  width: 12px;
  height: 12px;
  border-radius: 50%;
  display: inline-block;
}
.terminal-title {
  margin-left: auto;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: #64748b;
}
.terminal-body {
  padding: 18px 20px;
  color: #22c55e;
  background: #000;
  min-height: 240px;
  line-height: 1.7;
}
.terminal-body p { margin: 0; }
.terminal-input-row {
  display: flex;
  align-items: center;
  padding: 12px 20px;
  background: #000;
  border-top: 1px solid rgba(30,41,59,0.6);
}
.cursor {
  display: inline-block;
  width: 8px;
  background: #22c55e;
  animation: blink 1s steps(2) infinite;
}
@keyframes blink { 50% { opacity: 0; } }

#terminal-modal.open { display: flex; }

/* ---------- Stat cards ---------- */
.stat-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
  padding: 20px;
  border: 1px solid rgba(30,41,59,0.8);
  border-radius: 10px;
  background: rgba(15,23,42,0.4);
  color: #94a3b8;
  font-size: 0.85rem;
  transition: border-color 0.2s, transform 0.2s;
}
.stat-card:hover { border-color: rgba(16,185,129,0.5); transform: translateY(-2px); }

/* ---------- Timeline ---------- */
.timeline {
  position: relative;
  padding-left: 28px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 8px;
  top: 4px;
  bottom: 4px;
  width: 2px;
  background: linear-gradient(180deg, rgba(16,185,129,0.6), rgba(16,185,129,0.1));
}
.timeline-item { position: relative; padding-bottom: 2rem; }
.timeline-item:last-child { padding-bottom: 0; }
.timeline-dot {
  position: absolute;
  left: -28px;
  top: 18px;
  width: 18px; height: 18px;
  border-radius: 50%;
  background: #020617;
  border: 2px solid #10b981;
  box-shadow: 0 0 12px rgba(16,185,129,0.5);
}
.timeline-card {
  padding: 20px 22px;
  border: 1px solid rgba(30,41,59,0.8);
  border-radius: 10px;
  background: rgba(15,23,42,0.5);
  transition: border-color 0.2s, transform 0.2s;
}
.timeline-card:hover { border-color: rgba(16,185,129,0.5); transform: translateY(-2px); }
.timeline-card.highlight {
  border-color: rgba(16,185,129,0.45);
  box-shadow: 0 0 30px rgba(16,185,129,0.08);
}
.tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  padding: 2px 8px;
  border-radius: 4px;
  background: rgba(16,185,129,0.12);
  color: #34d399;
  border: 1px solid rgba(16,185,129,0.3);
}
.chip {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  padding: 3px 9px;
  border-radius: 4px;
  background: rgba(15,23,42,0.8);
  color: #94a3b8;
  border: 1px solid rgba(30,41,59,1);
}

/* ---------- Skill cards ---------- */
.skill-card {
  padding: 22px;
  border: 1px solid rgba(30,41,59,0.8);
  border-radius: 10px;
  background: rgba(15,23,42,0.5);
  transition: border-color 0.2s, transform 0.2s;
}
.skill-card:hover { border-color: rgba(16,185,129,0.5); transform: translateY(-3px); }
.skill-card h4 {
  font-weight: 600;
  color: #f1f5f9;
  margin: 12px 0 10px;
}
.skill-card ul { list-style: none; padding: 0; margin: 0; }
.skill-card li {
  font-size: 0.85rem;
  color: #94a3b8;
  padding: 3px 0;
  font-family: 'JetBrains Mono', monospace;
}
.skill-card li::before { content: "▸ "; color: #10b981; }

/* ---------- Projects ---------- */
.project-card {
  padding: 22px;
  border: 1px solid rgba(30,41,59,0.8);
  border-radius: 10px;
  background: rgba(15,23,42,0.6);
  display: flex;
  flex-direction: column;
  transition: all 0.25s;
  min-height: 200px;
}
.project-card:hover {
  border-color: rgba(16,185,129,0.5);
  transform: translateY(-4px);
  box-shadow: 0 10px 40px rgba(16,185,129,0.08);
}
.project-card h4 {
  font-weight: 600;
  color: #f1f5f9;
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.project-card p {
  color: #94a3b8;
  font-size: 0.85rem;
  line-height: 1.55;
  flex: 1;
}
.project-card .meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-top: 16px;
  padding-top: 14px;
  border-top: 1px solid rgba(30,41,59,0.8);
  font-size: 0.75rem;
  color: #64748b;
  font-family: 'JetBrains Mono', monospace;
}
.project-card .lang-dot {
  display: inline-block;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: #10b981;
  margin-right: 6px;
}
.project-card a.view-code {
  color: #34d399;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  display: inline-flex;
  align-items: center;
  gap: 4px;
}
.project-card a.view-code:hover { text-decoration: underline; }

.skeleton {
  background: linear-gradient(90deg, rgba(15,23,42,0.4), rgba(30,41,59,0.6), rgba(15,23,42,0.4));
  background-size: 200% 100%;
  animation: shimmer 1.6s linear infinite;
}
@keyframes shimmer {
  from { background-position: 200% 0; }
  to { background-position: -200% 0; }
}

/* ---------- Certifications ---------- */
.cert-card {
  padding: 26px 22px;
  border: 1px solid rgba(30,41,59,0.8);
  border-radius: 12px;
  background: rgba(15,23,42,0.5);
  transition: all 0.3s ease;
  position: relative;
  overflow: hidden;
}
.cert-card::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 50% 0%, rgba(16,185,129,0.15), transparent 60%);
  opacity: 0;
  transition: opacity 0.3s;
}
.cert-card:hover {
  transform: scale(1.04);
  border-color: rgba(16,185,129,0.6);
  box-shadow: 0 0 35px rgba(16,185,129,0.25);
}
.cert-card:hover::before { opacity: 1; }
.cert-icon {
  width: 48px; height: 48px;
  border-radius: 10px;
  background: rgba(16,185,129,0.12);
  color: #34d399;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 14px;
}
.cert-card h4 {
  font-weight: 600;
  color: #f1f5f9;
  font-size: 1.05rem;
  margin-bottom: 8px;
}
.cert-card p {
  color: #94a3b8;
  font-size: 0.85rem;
  line-height: 1.55;
  margin-bottom: 14px;
}
.cert-tag {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.7rem;
  padding: 3px 10px;
  border-radius: 4px;
  background: rgba(15,23,42,0.9);
  color: #34d399;
  border: 1px solid rgba(16,185,129,0.3);
}

/* ---------- Reveal animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.7s ease, transform 0.7s ease;
}
.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; transition: none; }
  .cursor { animation: none; }
}

/* ---------- Avatar ---------- */
.avatar-wrap {
  position: relative;
  width: 140px;
  height: 140px;
}
.avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  object-fit: cover;
  border: 3px solid rgba(16,185,129,0.5);
  box-shadow: 0 0 35px rgba(16,185,129,0.3), inset 0 0 0 3px #020617;
  transition: transform 0.3s, box-shadow 0.3s;
  background: #0f172a;
}
.avatar:hover {
  transform: scale(1.04);
  box-shadow: 0 0 50px rgba(16,185,129,0.5), inset 0 0 0 3px #020617;
}
.avatar-status {
  position: absolute;
  bottom: 6px; right: 6px;
  width: 16px; height: 16px;
  border-radius: 50%;
  background: #10b981;
  border: 3px solid #020617;
  box-shadow: 0 0 10px rgba(16,185,129,0.8);
}

/* ---------- Featured skill card (AI) ---------- */
.skill-card.featured {
  border-color: rgba(16,185,129,0.5);
  background: linear-gradient(135deg, rgba(16,185,129,0.08), rgba(15,23,42,0.6));
  box-shadow: 0 0 30px rgba(16,185,129,0.12);
}
.skill-card.featured:hover {
  border-color: rgba(16,185,129,0.8);
  box-shadow: 0 0 40px rgba(16,185,129,0.25);
}
.featured-badge {
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.6rem;
  padding: 2px 6px;
  margin-left: 6px;
  border-radius: 4px;
  background: rgba(16,185,129,0.2);
  color: #34d399;
  border: 1px solid rgba(16,185,129,0.4);
  font-weight: 600;
  vertical-align: middle;
}
.stat-card.glow {
  border-color: rgba(16,185,129,0.45);
  box-shadow: 0 0 25px rgba(16,185,129,0.15);
  background: linear-gradient(135deg, rgba(16,185,129,0.1), rgba(15,23,42,0.5));
}
.stat-card.glow span:first-child { font-size: 1.25rem; }

/* ---------- Contact links ---------- */
.contact-link {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 16px 18px;
  border: 1px solid rgba(30,41,59,0.8);
  border-radius: 10px;
  background: rgba(15,23,42,0.5);
  color: #34d399;
  transition: all 0.2s;
  text-align: left;
}
.contact-link:hover {
  border-color: rgba(16,185,129,0.5);
  transform: translateX(4px);
  box-shadow: 0 0 20px rgba(16,185,129,0.1);
}

/* ---------- Contact form ---------- */
.contact-form {
  padding: 28px;
  border: 1px solid rgba(30,41,59,0.8);
  border-radius: 12px;
  background: rgba(15,23,42,0.5);
}
.contact-form label {
  display: block;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.75rem;
  color: #64748b;
  margin-bottom: 6px;
}
.contact-form input,
.contact-form textarea {
  width: 100%;
  padding: 11px 14px;
  background: #020617;
  border: 1px solid rgba(30,41,59,1);
  border-radius: 8px;
  color: #e2e8f0;
  font-family: 'Inter', sans-serif;
  font-size: 0.9rem;
  transition: border-color 0.2s, box-shadow 0.2s;
}
.contact-form input:focus,
.contact-form textarea:focus {
  outline: none;
  border-color: rgba(16,185,129,0.6);
  box-shadow: 0 0 0 3px rgba(16,185,129,0.15);
}
.contact-form textarea {
  resize: vertical;
  min-height: 120px;
  font-family: 'JetBrains Mono', monospace;
}
#cf-status.success { color: #34d399; }
#cf-status.error   { color: #f87171; }

/* ---------- Accessibility helper ---------- */
.sr-only {
  position: absolute;
  width: 1px; height: 1px;
  padding: 0; margin: -1px;
  overflow: hidden;
  clip: rect(0,0,0,0);
  white-space: nowrap;
  border: 0;
}

/* ---------- A. Code-Morph hero canvas ---------- */
.hero-canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  pointer-events: none;
  z-index: 0;
  opacity: 0.95;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, #000 65%, transparent 100%);
  -webkit-mask-image: radial-gradient(ellipse 80% 70% at 50% 50%, #000 65%, transparent 100%);
}
.hero-name-slot {
  /* Reserves vertical space for the canvas-rendered name; matches the old H1 footprint */
  height: 4rem;
  margin-top: 0;
}
@media (min-width: 640px) { .hero-name-slot { height: 5rem; } }
@media (min-width: 1024px) { .hero-name-slot { height: 6rem; } }

/* ---------- B. Binary DNA decrypt ---------- */
[data-decrypt] {
  font-variant-ligatures: none;
}
[data-decrypt].is-decrypting {
  font-family: 'JetBrains Mono', ui-monospace, monospace;
  color: #34d399;
  text-shadow: 0 0 8px rgba(16,185,129,0.35);
  letter-spacing: 0.02em;
}
[data-decrypt].is-decrypting span,
[data-decrypt].is-decrypting a { color: inherit !important; }

/* ---------- C. Neural-Link skill graph ---------- */
.neural-graph-wrap {
  margin-top: 2.5rem;
  padding: 22px;
  border: 1px solid rgba(30,41,59,0.8);
  border-radius: 12px;
  background: rgba(15,23,42,0.5);
}
.neural-graph-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 1rem;
  margin-bottom: 14px;
  flex-wrap: wrap;
}
.neural-graph-stage {
  position: relative;
  width: 100%;
  height: 360px;
  border-radius: 10px;
  background:
    radial-gradient(ellipse 70% 60% at 50% 50%, rgba(16,185,129,0.07), transparent 70%),
    #020617;
  border: 1px solid rgba(30,41,59,0.8);
  overflow: hidden;
}
@media (max-width: 640px) { .neural-graph-stage { height: 280px; } }
.neural-graph-stage canvas {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  display: block;
}
.neural-label {
  position: absolute;
  pointer-events: none;
  padding: 4px 9px;
  font-family: 'JetBrains Mono', monospace;
  font-size: 0.72rem;
  color: #34d399;
  background: rgba(2,6,23,0.85);
  border: 1px solid rgba(16,185,129,0.45);
  border-radius: 6px;
  box-shadow: 0 0 20px rgba(16,185,129,0.2);
  transform: translate(-50%, calc(-100% - 12px));
  opacity: 0;
  transition: opacity 0.15s ease;
  white-space: nowrap;
}
.neural-label.visible { opacity: 1; }

/* ---------- D. Sentinel terminal messages ---------- */
.terminal-body .sentinel-line {
  color: #64748b;
  font-style: italic;
}
.terminal-body .sentinel-line::before {
  content: "[sentinel] ";
  color: #22d3ee;
  font-style: normal;
}
.terminal-body .bot-line {
  color: #cbd5e1;
}
.terminal-body .bot-line::before {
  content: "aha-bot › ";
  color: #10b981;
  font-weight: 600;
}