/* ===== PAGE LAYOUT ===== */
.page-wrapper {
  min-height: 100vh;
  padding-top: 80px;
}

/* ===== PAGE HERO BANNER ===== */
.page-hero {
  position: relative;
  padding: 5rem 5% 4rem;
  max-width: 1200px;
  margin: 0 auto;
  overflow: hidden;
}
.page-hero-bg {
  position: absolute; inset: 0; pointer-events: none;
  background-image:
    linear-gradient(rgba(0,212,255,0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(0,212,255,0.025) 1px, transparent 1px);
  background-size: 50px 50px;
  mask-image: radial-gradient(ellipse 100% 100% at 50% 50%, black 30%, transparent 100%);
}
.page-hero-glow {
  position: absolute; pointer-events: none;
  width: 400px; height: 400px; border-radius: 50%;
  background: radial-gradient(circle, rgba(0,212,255,0.08) 0%, transparent 70%);
  filter: blur(60px);
  top: -80px; left: -80px;
}
.page-number {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.8rem;
  display: flex; align-items: center; gap: 0.8rem;
}
.page-number::after {
  content: '';
  flex: 1; max-width: 60px; height: 1px;
  background: linear-gradient(to right, var(--accent), transparent);
}
.page-title {
  font-family: var(--font-display);
  font-size: clamp(2.8rem, 6vw, 5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1.2rem;
}
.page-desc {
  color: var(--text-muted);
  font-size: 1.05rem;
  max-width: 560px;
  line-height: 1.8;
}

/* ===== PAGE CONTENT AREA ===== */
.page-content {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 5% 6rem;
}

/* ===== PAGE TRANSITION ===== */
body {
  opacity: 0;
  transition: opacity 0.35s ease;
}
body.page-visible {
  opacity: 1;
}
body.page-leaving {
  opacity: 0;
  transform: translateY(-6px);
  transition: opacity 0.25s ease, transform 0.25s ease;
}
/* Safety net: if JS never runs, still show the page after 1s */
@media (prefers-reduced-motion: reduce) {
  body, body.page-visible { opacity: 1 !important; transition: none !important; }
}

/* ===== NAV ACTIVE STATE ===== */
#navbar .nav-links a.active {
  color: var(--accent) !important;
}
#navbar .nav-links a.active::after {
  transform: scaleX(1) !important;
}

/* ===== BREADCRUMB ===== */
.breadcrumb {
  display: flex; align-items: center; gap: 0.5rem;
  font-family: var(--font-mono); font-size: 0.75rem;
  color: var(--text-dim); margin-bottom: 3rem;
  padding-top: 1rem;
}
.breadcrumb a { color: var(--text-muted); text-decoration: none; transition: color var(--transition); }
.breadcrumb a:hover { color: var(--accent); }
.breadcrumb span { color: var(--text-dim); }

/* ===== ABOUT PAGE ===== */
.about-page-grid {
  display: grid; grid-template-columns: 1fr 1.6fr; gap: 5rem; align-items: start;
  margin-bottom: 5rem;
}
.about-photo-col { position: sticky; top: 100px; }
.about-photo-frame {
  position: relative; width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 20px; overflow: hidden;
  border: 1px solid var(--border);
}
.about-photo-frame img {
  width: 100%; height: 100%; object-fit: cover;
  filter: grayscale(20%);
  transition: filter var(--transition);
}
.about-photo-frame:hover img { filter: grayscale(0%); }
.about-photo-overlay {
  position: absolute; inset: 0;
  background: linear-gradient(to bottom, transparent 60%, rgba(8,8,16,0.8));
}
.about-photo-tag {
  position: absolute; bottom: 1.2rem; left: 1.2rem;
  font-family: var(--font-mono); font-size: 0.7rem;
  color: var(--accent); background: rgba(0,212,255,0.1);
  border: 1px solid rgba(0,212,255,0.2);
  padding: 0.4rem 0.8rem; border-radius: 6px;
}
.about-text-col h3 {
  font-family: var(--font-display); font-size: 1.5rem; font-weight: 700;
  margin-bottom: 1rem; color: var(--text);
}
.about-text-col p { color: var(--text-muted); margin-bottom: 1.2rem; line-height: 1.85; }
.about-highlights {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem;
  margin: 2.5rem 0;
}
.highlight-box {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r); padding: 1.5rem 1.2rem; text-align: center;
  transition: all var(--transition);
}
.highlight-box:hover { border-color: rgba(0,212,255,0.2); transform: translateY(-3px); }
.highlight-num {
  font-family: var(--font-display); font-size: 2.2rem; font-weight: 800;
  color: var(--accent); display: block; line-height: 1;
}
.highlight-label { font-size: 0.78rem; color: var(--text-muted); margin-top: 0.4rem; display: block; }
.about-interests { margin-top: 2rem; }
.about-interests h4 {
  font-family: var(--font-display); font-size: 1rem; font-weight: 700;
  margin-bottom: 1rem; color: var(--text);
}
.interest-chips { display: flex; flex-wrap: wrap; gap: 0.6rem; }
.interest-chips span {
  padding: 0.45rem 1rem; border-radius: 20px;
  background: var(--surface2); border: 1px solid var(--border);
  font-size: 0.82rem; color: var(--text-muted);
  transition: all var(--transition);
}
.interest-chips span:hover { border-color: var(--accent); color: var(--accent); }

/* ===== EXPERIENCE PAGE ===== */
.exp-page-timeline { position: relative; }
.exp-page-timeline::before {
  content: ''; position: absolute;
  left: 0; top: 0; bottom: 0; width: 1px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}
.exp-timeline-item {
  padding-left: 3rem; margin-bottom: 4rem; position: relative;
}
.exp-timeline-dot {
  position: absolute; left: -6px; top: 8px;
  width: 13px; height: 13px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 15px rgba(0,212,255,0.6);
  border: 2px solid var(--bg);
}
.exp-page-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; padding: 2.5rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  position: relative; overflow: hidden;
}
.exp-page-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transform: scaleX(0); transform-origin: left;
  transition: transform 0.5s ease;
}
.exp-page-card:hover { border-color: rgba(0,212,255,0.2); box-shadow: 0 0 40px rgba(0,212,255,0.06); }
.exp-page-card:hover::before { transform: scaleX(1); }
.exp-page-header { display: flex; justify-content: space-between; align-items: flex-start; margin-bottom: 2rem; flex-wrap: wrap; gap: 1rem; }
.exp-page-role { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; }
.exp-page-company { color: var(--accent); font-family: var(--font-mono); font-size: 0.9rem; margin-top: 0.3rem; }
.exp-page-date {
  font-family: var(--font-mono); font-size: 0.78rem; color: var(--text-muted);
  padding: 0.4rem 0.9rem; border: 1px solid var(--border); border-radius: 6px;
  white-space: nowrap;
}
.exp-impact-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; margin: 2rem 0; }
.impact-item {
  background: var(--surface2); border: 1px solid var(--border);
  border-radius: 10px; padding: 1.2rem; text-align: center;
  transition: all var(--transition);
}
.impact-item:hover { border-color: rgba(0,212,255,0.2); }
.impact-icon { font-size: 1.5rem; margin-bottom: 0.5rem; display: block; }
.impact-label { font-size: 0.78rem; color: var(--text-muted); font-family: var(--font-mono); }

/* ===== PROJECTS PAGE ===== */
.projects-filter {
  display: flex; gap: 0.6rem; flex-wrap: wrap; margin-bottom: 3rem;
}
.filter-btn {
  padding: 0.45rem 1.1rem; border-radius: 6px;
  border: 1px solid var(--border); background: var(--surface);
  color: var(--text-muted); font-size: 0.82rem; cursor: none;
  transition: all var(--transition); font-family: var(--font-body);
}
.filter-btn:hover, .filter-btn.active {
  border-color: var(--accent); color: var(--accent);
  background: rgba(0,212,255,0.06);
}
.projects-page-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.proj-full-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; overflow: hidden;
  transition: transform var(--transition), border-color var(--transition), box-shadow var(--transition);
  display: flex; flex-direction: column;
  text-decoration: none; color: var(--text); cursor: pointer;
}
.proj-full-card:hover {
  transform: translateY(-6px);
  border-color: rgba(0,212,255,0.22);
  box-shadow: 0 20px 60px rgba(0,0,0,0.4), 0 0 30px rgba(0,212,255,0.07);
}
.proj-img-area { position: relative; height: 220px; overflow: hidden; flex-shrink: 0; }
.proj-img-area img { width: 100%; height: 100%; object-fit: cover; transition: transform 0.6s ease; }
.proj-full-card:hover .proj-img-area img { transform: scale(1.06); }
.proj-img-placeholder {
  width: 100%; height: 100%;
  background: linear-gradient(135deg, var(--surface2) 0%, #1e1e36 100%);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-display); font-weight: 800; font-size: 1.5rem;
  color: var(--text-dim); letter-spacing: -0.02em;
}
.proj-cat-badge {
  position: absolute; top: 1rem; left: 1rem;
  font-family: var(--font-mono); font-size: 0.68rem;
  color: var(--accent); background: rgba(8,8,16,0.85);
  border: 1px solid rgba(0,212,255,0.25);
  padding: 0.3rem 0.7rem; border-radius: 4px;
  backdrop-filter: blur(10px);
}
.proj-body { padding: 1.8rem; flex: 1; display: flex; flex-direction: column; }
.proj-body h3 { font-family: var(--font-display); font-size: 1.15rem; font-weight: 700; margin-bottom: 0.7rem; }
.proj-body p { color: var(--text-muted); font-size: 0.88rem; line-height: 1.75; margin-bottom: 1.2rem; flex: 1; }
.proj-tech-row { display: flex; flex-wrap: wrap; gap: 0.4rem; margin-bottom: 1.2rem; }
.proj-tech-row span {
  font-family: var(--font-mono); font-size: 0.68rem;
  padding: 0.25rem 0.6rem; border-radius: 4px;
  background: rgba(123,94,167,0.1); color: #a78bdb;
  border: 1px solid rgba(123,94,167,0.2);
}
.proj-footer { display: flex; align-items: center; justify-content: space-between; }
.proj-period { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-dim); }
.proj-link {
  display: flex; align-items: center; gap: 0.4rem;
  font-size: 0.82rem; color: var(--accent); text-decoration: none;
  font-family: var(--font-mono);
  transition: gap var(--transition);
}
.proj-link:hover { gap: 0.7rem; }

/* ===== SKILLS PAGE ===== */
.skills-page-grid { display: grid; grid-template-columns: repeat(2, 1fr); gap: 1.5rem; }
.skill-page-group {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 16px; padding: 2rem;
  transition: border-color var(--transition), box-shadow var(--transition);
  position: relative; overflow: hidden;
}
.skill-page-group::after {
  content: attr(data-icon);
  position: absolute; bottom: -10px; right: 10px;
  font-size: 5rem; opacity: 0.04; pointer-events: none;
  transition: opacity var(--transition);
}
.skill-page-group:hover { border-color: rgba(0,212,255,0.15); box-shadow: 0 0 40px rgba(0,212,255,0.04); }
.skill-page-group:hover::after { opacity: 0.07; }
.skill-page-header { display: flex; align-items: center; gap: 1rem; margin-bottom: 1.5rem; }
.skill-page-icon {
  width: 40px; height: 40px; border-radius: 10px;
  background: rgba(0,212,255,0.08); border: 1px solid rgba(0,212,255,0.12);
  display: flex; align-items: center; justify-content: center; font-size: 1.2rem;
  flex-shrink: 0;
}
.skill-page-header h3 { font-family: var(--font-display); font-size: 1.05rem; font-weight: 700; }
.skill-pill-grid { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.skill-pill {
  font-size: 0.8rem; padding: 0.4rem 0.9rem; border-radius: 6px;
  background: var(--surface2); border: 1px solid var(--border);
  color: var(--text-muted); transition: all var(--transition);
  cursor: default;
}
.skill-pill:hover { background: rgba(0,212,255,0.07); border-color: rgba(0,212,255,0.2); color: var(--accent); transform: translateY(-1px); }
.skill-pill.highlight { background: rgba(0,212,255,0.07); border-color: rgba(0,212,255,0.18); color: var(--accent); }

/* ===== EDUCATION PAGE ===== */
.edu-page-layout { display: grid; grid-template-columns: 1fr 1fr; gap: 3rem; margin-bottom: 4rem; }
.edu-page-timeline { position: relative; padding-left: 2rem; }
.edu-page-timeline::before {
  content: ''; position: absolute; left: 0; top: 0; bottom: 0; width: 1px;
  background: linear-gradient(to bottom, var(--accent), transparent);
}
.edu-page-item { position: relative; margin-bottom: 2.5rem; }
.edu-page-dot {
  position: absolute; left: -2.4rem; top: 0.4rem;
  width: 12px; height: 12px; border-radius: 50%;
  background: var(--accent); box-shadow: 0 0 12px rgba(0,212,255,0.5);
  border: 2px solid var(--bg);
}
.edu-page-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r); padding: 1.5rem;
  transition: border-color var(--transition), transform var(--transition);
}
.edu-page-card:hover { border-color: rgba(0,212,255,0.2); transform: translateX(4px); }
.edu-page-card h3 { font-family: var(--font-display); font-size: 1rem; font-weight: 700; margin-bottom: 0.4rem; }
.edu-page-inst { color: var(--text-muted); font-size: 0.85rem; margin-bottom: 0.3rem; }
.edu-page-spec { color: var(--accent2); font-size: 0.78rem; font-family: var(--font-mono); margin-bottom: 0.6rem; }
.edu-page-year { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-dim); margin-bottom: 0.5rem; }
.edu-badge { display: inline-block; font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent); background: rgba(0,212,255,0.08); border: 1px solid rgba(0,212,255,0.15); padding: 0.2rem 0.6rem; border-radius: 4px; }
.achievements-col h3 { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; margin-bottom: 1.5rem; }
.ach-card {
  background: linear-gradient(135deg, rgba(123,94,167,0.1), rgba(0,212,255,0.05));
  border: 1px solid rgba(123,94,167,0.2); border-radius: 16px;
  padding: 2rem; margin-bottom: 1.2rem;
  transition: all var(--transition);
}
.ach-card:hover { transform: translateY(-3px); box-shadow: 0 12px 40px rgba(123,94,167,0.1); }
.ach-card-icon { font-size: 2rem; margin-bottom: 0.8rem; display: block; }
.ach-card h4 { font-family: var(--font-display); font-size: 1.05rem; font-weight: 700; margin-bottom: 0.4rem; }
.ach-card p { color: var(--text-muted); font-size: 0.85rem; }
.ach-card-date { font-family: var(--font-mono); font-size: 0.72rem; color: var(--accent); margin-top: 0.5rem; display: block; }
.certifications { margin-top: 4rem; }
.certifications h3 { font-family: var(--font-display); font-size: 1.3rem; font-weight: 700; margin-bottom: 1.5rem; }
.cert-real-grid {
  display: grid; grid-template-columns: repeat(3, 1fr); gap: 1.2rem;
}
.cert-real-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 14px; overflow: hidden;
  text-decoration: none; color: var(--text);
  display: flex; flex-direction: column;
  transition: transform 0.3s ease, border-color 0.3s ease, box-shadow 0.3s ease;
}
.cert-real-card:not(.no-thumb):hover {
  transform: translateY(-4px);
  border-color: rgba(0,212,255,0.22);
  box-shadow: 0 16px 40px rgba(0,0,0,0.35), 0 0 22px rgba(0,212,255,0.06);
}
.cert-real-thumb {
  width: 100%; height: 150px; overflow: hidden;
  background: var(--surface2);
  display: flex; align-items: center; justify-content: center;
}
.cert-real-thumb img {
  width: 100%; height: 100%; object-fit: cover; object-position: top;
  transition: transform 0.5s ease;
}
.cert-real-card:hover .cert-real-thumb img { transform: scale(1.04); }
.cert-real-thumb.placeholder { font-size: 2.4rem; background: linear-gradient(135deg, var(--surface2), #1a1a35); }
.cert-real-body { padding: 1.2rem 1.3rem; display: flex; flex-direction: column; gap: 0.4rem; flex: 1; }
.cert-real-issuer {
  font-family: var(--font-mono); font-size: 0.68rem; color: var(--accent);
  text-transform: uppercase; letter-spacing: 0.08em;
}
.cert-real-body h4 { font-family: var(--font-display); font-size: 0.92rem; font-weight: 700; line-height: 1.4; }
.cert-real-meta { font-family: var(--font-mono); font-size: 0.7rem; color: var(--text-dim); display: flex; gap: 0.5rem; }
.cert-real-meta .sep { opacity: 0.5; }
.cert-real-view {
  margin-top: auto; padding-top: 0.6rem;
  font-family: var(--font-mono); font-size: 0.75rem; color: var(--accent);
}
.cert-real-card.no-thumb { cursor: default; }

.cert-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 1rem; }
.cert-card {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: var(--r); padding: 1.2rem;
  text-align: center; transition: all var(--transition);
}
.cert-card:hover { border-color: rgba(0,212,255,0.2); transform: translateY(-2px); }
.cert-card .cert-icon { font-size: 1.8rem; margin-bottom: 0.6rem; display: block; }
.cert-card p { font-size: 0.8rem; color: var(--text-muted); }

/* ===== CONTACT PAGE ===== */
.contact-page-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; align-items: start; }
.contact-info-col h3 { font-family: var(--font-display); font-size: 1.5rem; font-weight: 700; margin-bottom: 0.8rem; }
.contact-info-col p { color: var(--text-muted); line-height: 1.85; margin-bottom: 2.5rem; }
.contact-items { display: flex; flex-direction: column; gap: 1rem; margin-bottom: 2.5rem; }
.contact-item {
  display: flex; align-items: center; gap: 1rem;
  padding: 1.1rem 1.3rem; background: var(--surface);
  border: 1px solid var(--border); border-radius: var(--r);
  text-decoration: none; color: var(--text);
  transition: all var(--transition);
}
.contact-item:hover { border-color: rgba(0,212,255,0.2); transform: translateX(4px); color: var(--accent); }
.contact-item-icon {
  width: 38px; height: 38px; border-radius: 8px;
  background: rgba(0,212,255,0.08); border: 1px solid rgba(0,212,255,0.12);
  display: flex; align-items: center; justify-content: center;
  flex-shrink: 0;
}
.contact-item-icon svg { width: 18px; height: 18px; }
.contact-item-text { flex: 1; }
.contact-item-label { font-family: var(--font-mono); font-size: 0.68rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; display: block; }
.contact-item-val { font-size: 0.9rem; margin-top: 0.15rem; }
.contact-availability {
  background: rgba(0,212,255,0.05); border: 1px solid rgba(0,212,255,0.12);
  border-radius: var(--r); padding: 1.2rem 1.5rem;
  display: flex; align-items: center; gap: 1rem;
}
.avail-dot {
  width: 10px; height: 10px; border-radius: 50%;
  background: #22c55e; flex-shrink: 0;
  box-shadow: 0 0 10px rgba(34,197,94,0.5);
  animation: blink 1.5s ease-in-out infinite;
}
.avail-text { font-size: 0.85rem; color: var(--text-muted); }
.avail-text strong { color: var(--text); }
.contact-form-col { }
.contact-form { display: flex; flex-direction: column; gap: 1.2rem; }
.form-row { display: grid; grid-template-columns: 1fr 1fr; gap: 1.2rem; }
.form-group { display: flex; flex-direction: column; gap: 0.4rem; }
.form-group label { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.1em; }
.form-group input,
.form-group textarea {
  background: var(--surface); border: 1px solid var(--border);
  border-radius: 8px; padding: 0.85rem 1rem;
  color: var(--text); font-family: var(--font-body); font-size: 0.9rem;
  outline: none; transition: border-color var(--transition), box-shadow var(--transition);
  resize: none;
}
.form-group input:focus,
.form-group textarea:focus {
  border-color: rgba(0,212,255,0.3);
  box-shadow: 0 0 0 3px rgba(0,212,255,0.05);
}
.form-group input::placeholder,
.form-group textarea::placeholder { color: var(--text-dim); }
.form-submit {
  padding: 0.95rem 2.5rem; background: var(--accent);
  color: var(--bg); font-weight: 700; font-size: 0.9rem;
  border: none; border-radius: 8px; cursor: none;
  font-family: var(--font-body);
  transition: all var(--transition);
  align-self: flex-start;
}
.form-submit:hover {
  background: transparent; color: var(--accent);
  box-shadow: 0 0 0 1px var(--accent), 0 0 25px rgba(0,212,255,0.2);
}
.form-success {
  display: none; padding: 1rem 1.5rem;
  background: rgba(34,197,94,0.08); border: 1px solid rgba(34,197,94,0.2);
  border-radius: 8px; color: #22c55e; font-size: 0.88rem;
}

/* ===== RESPONSIVE MULTI-PAGE ===== */
@media (max-width: 900px) {
  .about-page-grid { grid-template-columns: 1fr; gap: 2.5rem; }
  .about-photo-col { position: static; max-width: 300px; margin: 0 auto; }
  .projects-page-grid { grid-template-columns: 1fr; }
  .skills-page-grid { grid-template-columns: 1fr; }
  .edu-page-layout { grid-template-columns: 1fr; }
  .contact-page-grid { grid-template-columns: 1fr; }
  .exp-impact-grid { grid-template-columns: repeat(2, 1fr); }
  .about-highlights { grid-template-columns: repeat(3, 1fr); }
  .cert-grid { grid-template-columns: repeat(2, 1fr); }
  .cert-real-grid { grid-template-columns: repeat(2, 1fr); }
  .form-row { grid-template-columns: 1fr; }
}
@media (max-width: 600px) {
  .page-hero { padding: 3rem 5% 2.5rem; }
  .about-highlights { grid-template-columns: 1fr; }
  .cert-grid { grid-template-columns: 1fr; }
  .cert-real-grid { grid-template-columns: 1fr; }
}