/* =========================================================================
   DESIGN TOKENS
   ========================================================================= */
:root {
  /* Color */
  --bg-void:      #06142b;
  --bg-panel:     #0b2345;
  --bg-panel-2:   #10325f;
  --border-soft:  #214b7b;
  --text-primary: #edf6ff;
  --text-muted:   #9ab6d4;
  --accent-cyan:  #38bdf8;
  --accent-violet:#7dd3fc;
  --accent-amber: #60a5fa;

  /* Type */
  --font-mono: 'JetBrains Mono', 'Fira Code', ui-monospace, monospace;
  --font-body: 'Inter', -apple-system, sans-serif;

  /* Layout */
  --max-width: 1100px;
  --radius: 10px;
  --nav-h: 56px;
}

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

html { scroll-behavior: smooth; scroll-padding-top: calc(var(--nav-h) + 24px); }

body {
  background: var(--bg-void);
  color: var(--text-primary);
  font-family: var(--font-body);
  line-height: 1.6;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background:
    radial-gradient(ellipse 900px 500px at 15% -5%, rgba(37,99,235,0.20), transparent 60%),
    radial-gradient(ellipse 900px 500px at 90% 10%, rgba(56,189,248,0.12), transparent 60%);
  pointer-events: none;
  z-index: 0;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; }
img { max-width: 100%; display: block; }

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

section { position: relative; z-index: 1; padding: 110px 0; }

.eyebrow {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--accent-cyan);
  letter-spacing: 0.04em;
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 14px;
}
.eyebrow::before { content: ""; width: 22px; height: 1px; background: var(--accent-cyan); }

.section-title {
  font-family: var(--font-mono);
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  font-weight: 600;
  margin-bottom: 48px;
  letter-spacing: -0.01em;
}
.section-title .dim { color: var(--text-muted); }

/* Reveal-on-scroll (hooked up by main.js) */
.reveal { opacity: 0; transform: translateY(24px); transition: opacity 0.7s ease, transform 0.7s ease; }
.reveal.in-view { opacity: 1; transform: translateY(0); }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  .reveal { transition: none; opacity: 1; transform: none; }
  * { animation: none !important; }
}

/* =========================================================================
   NAV — IDE tab bar
   ========================================================================= */
.navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  height: var(--nav-h);
  z-index: 100;
  background: rgba(10, 14, 20, 0.85);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid var(--border-soft);
}

.navbar .container {
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-brand {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 8px;
}
.nav-brand .dot { width: 8px; height: 8px; border-radius: 50%; background: var(--accent-cyan); box-shadow: 0 0 10px var(--accent-cyan); }

/* =========================================================================
   FIXED PROFILE PHOTO — top-left corner
   ========================================================================= */

.profile-avatar-corner {
  position: fixed;
  top: 14px;
  left: 14px;
  width: 100px;
  height: 100px;
  padding: 0;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--accent-cyan);
  background: var(--bg-panel-2);
  cursor: pointer;
  z-index: 1001;
  display: none;
  box-shadow: 0 0 14px rgba(56, 189, 248, 0.30);
  transition:
    transform 0.2s ease,
    box-shadow 0.2s ease,
    border-color 0.2s ease;
}

.profile-avatar-corner:hover {
  transform: scale(1.08);
  border-color: var(--accent-cyan);
  box-shadow: 0 0 20px rgba(56, 189, 248, 0.50);
}

.profile-avatar-corner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.nav-avatar:hover {
  border-color: var(--accent-cyan);
  transform: scale(1.08);
  box-shadow: 0 0 12px rgba(56,189,248,0.35);
}
.nav-avatar img { width: 100%; height: 100%; object-fit: cover; display: block; }

.nav-tabs { display: flex; gap: 2px; }

.nav-tabs a {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  padding: 8px 14px;
  border-radius: 6px 6px 0 0;
  border-bottom: 2px solid transparent;
  transition: color 0.2s ease, border-color 0.2s ease, background 0.2s ease;
  white-space: nowrap;
}
.nav-tabs a:hover { color: var(--text-primary); background: var(--bg-panel); }
.nav-tabs a.active { color: var(--accent-cyan); border-color: var(--accent-cyan); background: var(--bg-panel); }

.nav-toggle { display: none; }

@media (max-width: 860px) {
  .nav-tabs {
    position: fixed;
    top: var(--nav-h);
    left: 0; right: 0;
    flex-direction: column;
    background: var(--bg-panel);
    border-bottom: 1px solid var(--border-soft);
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.3s ease;
  }
  .nav-tabs.open { max-height: 400px; }
  .nav-tabs a { padding: 14px 24px; border-radius: 0; border-bottom: 1px solid var(--border-soft); }
  .nav-toggle {
    display: block;
    background: none;
    border: none;
    color: var(--text-primary);
    font-size: 1.4rem;
    cursor: pointer;
  }
}

/* =========================================================================
   HERO — terminal window
   ========================================================================= */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding-top: var(--nav-h);
  position: relative;
}

.hero .container { position: relative; z-index: 2; width: 100%; }

.hero-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 40px;
  align-items: center;
}
@media (max-width: 900px) {
  .hero-grid { grid-template-columns: 1fr; }
  .hero-visual { order: -1; height: 320px !important; }
}

.terminal {
  background: rgba(18, 23, 31, 0.9);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  box-shadow: 0 20px 60px rgba(0,0,0,0.5), 0 0 0 1px rgba(0,229,199,0.03);
  backdrop-filter: blur(6px);
}

/* Right-side interactive visual panel */
.hero-visual {
  position: relative;
  height: 560px;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  background: radial-gradient(ellipse at 60% 30%, rgba(138,107,255,0.10), transparent 65%), var(--bg-panel);
  overflow: hidden;
}
.hero-visual-tag {
  position: absolute;
  top: 14px; left: 16px;
  z-index: 3;
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  display: flex; align-items: center; gap: 6px;
}
.hero-visual-tag .live-dot {
  width: 6px; height: 6px; border-radius: 50%;
  background: var(--accent-cyan);
  box-shadow: 0 0 8px var(--accent-cyan);
  animation: blink 1.6s ease-in-out infinite;
}
#particle-canvas {
  position: absolute;
  inset: 0;
  z-index: 1;
  cursor: crosshair;
}
.hero-visual-hint {
  position: absolute;
  bottom: 14px; left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.68rem;
  color: var(--text-muted);
  z-index: 3;
  pointer-events: none;
}

.terminal-bar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 12px 16px;
  border-bottom: 1px solid var(--border-soft);
}
.terminal-dot { width: 11px; height: 11px; border-radius: 50%; }
.terminal-dot.red { background: #ff5f56; }
.terminal-dot.yellow { background: #ffbd2e; }
.terminal-dot.green { background: #27c93f; }
.terminal-path {
  margin-left: 12px;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
}

.terminal-body {
  padding: 28px 24px 32px;
  font-family: var(--font-mono);
  font-size: 0.95rem;
}

.terminal-line { color: var(--text-muted); margin-bottom: 4px; }
.terminal-line .prompt { color: var(--accent-cyan); }

.hero-name {
  font-family: var(--font-mono);
  font-weight: 700;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--text-primary);
  margin: 14px 0 6px;
  line-height: 1.2;
}

.hero-role {
  color: var(--accent-cyan);
  font-size: 1.05rem;
  margin-bottom: 18px;
}

#typed-line::after {
  content: "";
  display: inline-block;
  width: 8px;
  height: 1.1em;
  background: var(--accent-cyan);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blink 1s step-end infinite;
}
@keyframes blink { 50% { opacity: 0; } }

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  margin-top: 22px;
  font-size: 0.82rem;
  color: var(--text-muted);
}
.hero-meta span { display: flex; align-items: center; gap: 6px; }

.hero-actions { display: flex; flex-wrap: wrap; gap: 14px; margin-top: 30px; }

.btn {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  padding: 12px 22px;
  border-radius: 6px;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
  border: 1px solid transparent;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}
.btn-primary {
  background: var(--accent-cyan);
  color: #06110f;
  font-weight: 600;
}
.btn-primary:hover { transform: translateY(-2px); box-shadow: 0 8px 24px rgba(0,229,199,0.35); }
.btn-ghost {
  border-color: var(--border-soft);
  color: var(--text-primary);
  background: rgba(255,255,255,0.02);
}
.btn-ghost:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); transform: translateY(-2px); }

.hero-socials { display: flex; gap: 16px; margin-top: 26px; }
.hero-socials a {
  width: 38px; height: 38px;
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  transition: color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
  font-family: var(--font-mono);
  font-size: 0.75rem;
}
.hero-socials a:hover { color: var(--accent-cyan); border-color: var(--accent-cyan); transform: translateY(-3px); }

.scroll-cue {
  position: absolute;
  bottom: 28px; left: 50%;
  transform: translateX(-50%);
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--text-muted);
  display: flex; flex-direction: column; align-items: center; gap: 8px;
  animation: floaty 2.4s ease-in-out infinite;
}
@keyframes floaty { 0%,100% { transform: translate(-50%,0); } 50% { transform: translate(-50%,8px); } }

/* =========================================================================
   ABOUT
   ========================================================================= */
.about-grid {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 60px;
  align-items: start;
}
@media (max-width: 800px) { .about-grid { grid-template-columns: 1fr; gap: 40px; } }

.about-text p {
  color: var(--text-muted);
  font-size: 1.02rem;
  margin-bottom: 18px;
}
.about-text strong { color: var(--text-primary); }

.about-side { display: flex; flex-direction: column; gap: 20px; }

.about-photo-frame {
  position: relative;
  width: 100%;
  max-width: 220px;
  aspect-ratio: 1;
  margin: 0 auto;
  border-radius: var(--radius);
  overflow: hidden;
  border: 1px solid var(--border-soft);
  box-shadow: 0 0 0 1px rgba(56,189,248,0.08), 0 20px 45px rgba(0,0,0,0.4), 0 0 40px rgba(56,189,248,0.10);
  background: var(--bg-panel-2);
}
.about-photo-frame::after {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  box-shadow: inset 0 0 0 1px rgba(56,189,248,0.25);
  pointer-events: none;
}
.about-photo-frame img {
  width: 100%; height: 100%;
  object-fit: cover;
  display: block;
}

.about-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 22px;
  font-family: var(--font-mono);
  font-size: 0.85rem;
}
.about-card .kv { display: flex; justify-content: space-between; padding: 10px 0; border-bottom: 1px dashed var(--border-soft); }
.about-card .kv:last-child { border-bottom: none; }
.about-card .kv .k { color: var(--text-muted); }
.about-card .kv .v { color: var(--text-primary); text-align: right; }

/* Placeholder note for sections not yet built (removed as parts progress) */
.wip-note {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-muted);
  border: 1px dashed var(--border-soft);
  padding: 18px;
  border-radius: var(--radius);
}

/* =========================================================================
   TIMELINE — used for Education + Experience ("git log" style)
   ========================================================================= */
.timeline {
  position: relative;
  padding-left: 34px;
}
.timeline::before {
  content: "";
  position: absolute;
  left: 6px; top: 6px; bottom: 6px;
  width: 1px;
  background: linear-gradient(to bottom, var(--accent-cyan), var(--border-soft) 90%);
}

.timeline-item {
  position: relative;
  padding-bottom: 40px;
}
.timeline-item:last-child { padding-bottom: 0; }

.timeline-node {
  position: absolute;
  left: -34px; top: 4px;
  width: 13px; height: 13px;
  border-radius: 50%;
  background: var(--bg-void);
  border: 2px solid var(--accent-cyan);
}
.timeline-item.current .timeline-node {
  background: var(--accent-cyan);
  box-shadow: 0 0 0 4px rgba(0,229,199,0.15);
  animation: pulse 2s ease-in-out infinite;
}
@keyframes pulse {
  0%, 100% { box-shadow: 0 0 0 4px rgba(0,229,199,0.15); }
  50% { box-shadow: 0 0 0 8px rgba(0,229,199,0.06); }
}

.timeline-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 22px 24px;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.timeline-card:hover { border-color: var(--accent-cyan); transform: translateX(4px); }

.timeline-head {
  display: flex;
  flex-wrap: wrap;
  align-items: baseline;
  justify-content: space-between;
  gap: 10px;
  margin-bottom: 6px;
}
.timeline-title { font-weight: 600; font-size: 1.05rem; }
.timeline-badge {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-cyan);
  border: 1px solid rgba(0,229,199,0.35);
  border-radius: 20px;
  padding: 3px 10px;
  white-space: nowrap;
}
.timeline-item.current .timeline-badge {
  color: var(--accent-amber);
  border-color: rgba(255,180,84,0.4);
}
.timeline-sub { color: var(--text-muted); font-size: 0.9rem; margin-bottom: 12px; }
.timeline-sub .score { color: var(--accent-violet); font-family: var(--font-mono); }

.timeline-points { padding-left: 18px; }
.timeline-points li {
  list-style: disc;
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 6px;
}

/* =========================================================================
   SKILLS GRID
   ========================================================================= */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 20px;
}

.skill-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 20px 22px;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.skill-card:hover { border-color: var(--accent-violet); transform: translateY(-4px); }

.skill-card-title {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--accent-cyan);
  margin-bottom: 14px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.skill-card-title::before { content: "//"; color: var(--text-muted); }

.skill-tags { display: flex; flex-wrap: wrap; gap: 8px; }
.skill-tag {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  background: var(--bg-panel-2);
  border: 1px solid var(--border-soft);
  border-radius: 6px;
  padding: 5px 10px;
  color: var(--text-primary);
  opacity: 0;
  transform: scale(0.85);
  transition: opacity 0.4s ease, transform 0.4s ease, border-color 0.2s ease, color 0.2s ease;
}
.skill-card.in-view .skill-tag {
  opacity: 1;
  transform: scale(1);
}
.skill-tag:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); }

/* =========================================================================
   PROJECTS — 3D tilt cards
   ========================================================================= */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 26px;
  perspective: 1200px;
}

.project-card {
  background: linear-gradient(160deg, var(--bg-panel), var(--bg-panel-2));
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 26px;
  transform-style: preserve-3d;
  transition: transform 0.15s ease, border-color 0.25s ease, box-shadow 0.25s ease;
  will-change: transform;
  display: flex;
  flex-direction: column;
}
.project-card:hover {
  border-color: var(--accent-cyan);
  box-shadow: 0 20px 45px rgba(0,0,0,0.45), 0 0 40px rgba(0,229,199,0.08);
}

.project-index {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  color: var(--accent-violet);
  margin-bottom: 12px;
  transform: translateZ(20px);
}

.project-title {
  font-size: 1.15rem;
  font-weight: 600;
  margin-bottom: 10px;
  transform: translateZ(20px);
}

.project-desc {
  color: var(--text-muted);
  font-size: 0.9rem;
  margin-bottom: 18px;
  flex-grow: 1;
  transform: translateZ(15px);
}

.project-tech {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 20px;
  transform: translateZ(15px);
}
.project-tech span {
  font-family: var(--font-mono);
  font-size: 0.7rem;
  color: var(--accent-cyan);
  background: rgba(0,229,199,0.08);
  border: 1px solid rgba(0,229,199,0.2);
  border-radius: 5px;
  padding: 3px 8px;
}

.project-links {
  display: flex;
  gap: 16px;
  transform: translateZ(20px);
}
.project-links a, .project-details-btn {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-primary);
  border-bottom: 1px solid var(--border-soft);
  padding-bottom: 2px;
  transition: color 0.2s ease, border-color 0.2s ease;
  background: none;
  border-top: 0;
  border-left: 0;
  border-right: 0;
  cursor: pointer;
}
.project-links a:hover, .project-details-btn:hover { color: var(--accent-cyan); border-color: var(--accent-cyan); }

/* =========================================================================
   CERTIFICATIONS
   ========================================================================= */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 20px;
}

.cert-card {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  overflow: hidden;
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.cert-card:hover { border-color: var(--accent-amber); transform: translateY(-4px); }

.cert-thumb {
  aspect-ratio: 16/10;
  background: var(--bg-panel-2);
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--text-muted);
  overflow: hidden;
}
.cert-thumb img { width: 100%; height: 100%; object-fit: cover; }

.cert-body { padding: 16px 18px; }
.cert-title { font-weight: 600; font-size: 0.95rem; margin-bottom: 4px; }
.cert-meta { font-family: var(--font-mono); font-size: 0.75rem; color: var(--accent-amber); }

.certs-empty {
  grid-column: 1 / -1;
  border: 1px dashed var(--border-soft);
  border-radius: var(--radius);
  padding: 44px 24px;
  text-align: center;
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-muted);
}
.certs-empty strong { color: var(--text-primary); display: block; margin-bottom: 6px; font-size: 1rem; }

/* =========================================================================
   CONTACT
   ========================================================================= */
.contact-grid {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: 50px;
}
@media (max-width: 800px) { .contact-grid { grid-template-columns: 1fr; gap: 36px; } }

.contact-lead { color: var(--text-muted); margin-bottom: 28px; font-size: 1rem; max-width: 40ch; }

.contact-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 16px 0;
  border-bottom: 1px solid var(--border-soft);
  font-family: var(--font-mono);
  font-size: 0.9rem;
  transition: padding-left 0.2s ease, color 0.2s ease;
}
a.contact-row:hover { padding-left: 8px; color: var(--accent-cyan); }
.contact-label { color: var(--text-muted); text-transform: uppercase; font-size: 0.7rem; letter-spacing: 0.06em; }
.contact-value { color: var(--text-primary); }
a.contact-row:hover .contact-value { color: var(--accent-cyan); }

.contact-form {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 18px;
}
.contact-form label { display: flex; flex-direction: column; gap: 8px; }
.contact-form label span {
  font-family: var(--font-mono);
  font-size: 0.72rem;
  color: var(--accent-cyan);
  text-transform: uppercase;
  letter-spacing: 0.05em;
}
.contact-form input, .contact-form textarea {
  background: var(--bg-void);
  border: 1px solid var(--border-soft);
  border-radius: 6px;
  padding: 12px 14px;
  color: var(--text-primary);
  font-family: var(--font-body);
  font-size: 0.92rem;
  resize: vertical;
  transition: border-color 0.2s ease;
}
.contact-form input:focus, .contact-form textarea:focus {
  outline: none;
  border-color: var(--accent-cyan);
}
.contact-form .btn { align-self: flex-start; border: none; }
.form-note { font-family: var(--font-mono); font-size: 0.72rem; color: var(--text-muted); }

/* =========================================================================
   FOOTER
   ========================================================================= */
.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: 28px 0;
  position: relative;
  z-index: 1;
}
.footer-inner {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
}
.footer-brand {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  display: flex;
  align-items: center;
  gap: 8px;
}
.footer-brand .dot { width: 7px; height: 7px; border-radius: 50%; background: var(--accent-cyan); }
.footer-copy { color: var(--text-muted); font-size: 0.8rem; text-align: center; }
.footer-admin {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  color: var(--text-muted);
  border: 1px solid var(--border-soft);
  border-radius: 6px;
  padding: 6px 12px;
  transition: color 0.2s ease, border-color 0.2s ease;
}
.footer-admin:hover { color: var(--accent-cyan); border-color: var(--accent-cyan); }

/* =========================================================================
   BOOT LOADER
   ========================================================================= */
#boot-loader {
  position: fixed; inset: 0; z-index: 9999;
  background: var(--bg-void);
  display: flex; align-items: center; justify-content: center;
  transition: opacity 0.5s ease, visibility 0.5s ease;
}
#boot-loader.hidden { opacity: 0; visibility: hidden; }

.boot-box {
  font-family: var(--font-mono);
  font-size: 0.95rem;
  color: var(--accent-cyan);
  width: min(420px, 86vw);
}
.boot-line { margin-bottom: 14px; opacity: 0; animation: bootFadeIn 0.4s ease forwards; color: var(--text-muted); }
.boot-line:first-child { color: var(--text-primary); animation-delay: 0.1s; }
.boot-line-2 { display: flex; justify-content: space-between; animation-delay: 0.6s; }
.boot-line-3 { animation-delay: 1.6s; color: var(--accent-cyan); }
@keyframes bootFadeIn { to { opacity: 1; } }

.boot-cursor { animation: blink 1s step-end infinite; }

.boot-bar {
  height: 3px; width: 100%;
  background: var(--bg-panel-2);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 14px;
  opacity: 0;
  animation: bootFadeIn 0.4s ease forwards;
  animation-delay: 0.6s;
}
.boot-bar-fill {
  height: 100%; width: 0%;
  background: linear-gradient(90deg, var(--accent-cyan), var(--accent-violet));
  transition: width 1.1s cubic-bezier(0.4, 0, 0.2, 1);
}

/* =========================================================================
   ORBIT SYSTEM (hero right panel)
   ========================================================================= */
.orbit-system {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  z-index: 2;
  pointer-events: none;
}

.orbit-core {
  width: 68px; height: 68px;
  border-radius: 50%;
  background: radial-gradient(circle at 35% 30%, #ffffff22, transparent 40%), linear-gradient(135deg, var(--accent-cyan), var(--accent-violet));
  box-shadow: 0 0 50px rgba(0,229,199,0.45), 0 0 0 1px rgba(255,255,255,0.06) inset;
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-weight: 700; font-size: 1.05rem;
  color: #06110f;
  animation: corePulse 2.6s ease-in-out infinite;
  z-index: 2;
}
@keyframes corePulse {
  0%, 100% { transform: scale(1); }
  50% { transform: scale(1.08); }
}

.orbit-ring {
  position: absolute;
  top: 50%; left: 50%;
  border: 1px dashed rgba(0,229,199,0.22);
  border-radius: 50%;
  transform: translate(-50%, -50%);
  animation: spin linear infinite;
}
.orbit-ring.r1 { width: 190px; height: 190px; animation-duration: 16s; }
.orbit-ring.r2 { width: 300px; height: 300px; animation-duration: 24s; animation-direction: reverse; border-color: rgba(138,107,255,0.18); }
.orbit-ring.r3 { width: 410px; height: 410px; animation-duration: 32s; border-color: rgba(255,180,84,0.16); }
@keyframes spin { to { transform: translate(-50%, -50%) rotate(360deg); } }

.orbit-slot { position: absolute; inset: 0; }

.orbit-icon {
  position: absolute;
  top: -18px; left: 50%;
  margin-left: -18px;
  width: 36px; height: 36px;
  border-radius: 9px;
  background: rgba(18,23,31,0.95);
  border: 1px solid var(--border-soft);
  display: flex; align-items: center; justify-content: center;
  font-family: var(--font-mono); font-size: 0.62rem; font-weight: 600;
  color: var(--accent-cyan);
  box-shadow: 0 6px 18px rgba(0,0,0,0.4);
  animation: spin linear infinite;
}
.orbit-icon[data-spin="ccw"] { animation-direction: reverse; }

@media (max-width: 900px) {
  .orbit-ring.r3 { display: none; }
  .orbit-ring.r1 { width: 130px; height: 130px; }
  .orbit-ring.r2 { width: 210px; height: 210px; }
}

/* =========================================================================
   SOCIAL ICONS (hero)
   ========================================================================= */
.hero-socials a.social-icon {
  width: 38px; height: 38px;
  border: 1px solid var(--border-soft);
  border-radius: 8px;
  display: flex; align-items: center; justify-content: center;
  color: var(--text-muted);
  transition: color 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}
.hero-socials a.social-icon svg { width: 17px; height: 17px; }
.hero-socials a.social-icon:hover { color: var(--accent-cyan); border-color: var(--accent-cyan); transform: translateY(-3px); }
.hero-socials a.social-icon-text { font-family: var(--font-mono); font-size: 0.72rem; }

/* =========================================================================
   STATS (about section)
   ========================================================================= */
.stats-grid {
  margin-top: 50px;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}
@media (max-width: 700px) { .stats-grid { grid-template-columns: repeat(2, 1fr); } }

.stat-card {
  text-align: center;
  padding: 26px 14px;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  background: var(--bg-panel);
  transition: border-color 0.25s ease, transform 0.25s ease;
}
.stat-card:hover { border-color: var(--accent-cyan); transform: translateY(-4px); }
.stat-num {
  font-family: var(--font-mono);
  font-size: 2rem;
  font-weight: 700;
  color: var(--accent-cyan);
  margin-bottom: 6px;
}
.stat-label { font-size: 0.8rem; color: var(--text-muted); }

/* =========================================================================
   PROJECT FILTER BAR
   ========================================================================= */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 30px;
}
.filter-btn {
  font-family: var(--font-mono);
  font-size: 0.78rem;
  padding: 8px 16px;
  border-radius: 20px;
  border: 1px solid var(--border-soft);
  background: transparent;
  color: var(--text-muted);
  cursor: pointer;
  transition: all 0.2s ease;
}
.filter-btn:hover { color: var(--text-primary); border-color: var(--accent-cyan); }
.filter-btn.active { color: #06110f; background: var(--accent-cyan); border-color: var(--accent-cyan); }

.project-card.filtered-out {
  display: none;
}

/* =========================================================================
   CERTIFICATE LIGHTBOX
   ========================================================================= */
.cert-lightbox {
  position: fixed;
  inset: 0;
  background: rgba(6, 9, 14, 0.88);
  backdrop-filter: blur(6px);
  z-index: 300;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 24px;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s ease;
}
.cert-lightbox.open { opacity: 1; pointer-events: auto; }

.lightbox-inner {
  background: var(--bg-panel);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  padding: 20px;
  max-width: 640px;
  width: 100%;
  position: relative;
  box-shadow: 0 30px 80px rgba(0,0,0,0.6);
  transform: scale(0.94);
  transition: transform 0.25s ease;
}
.cert-lightbox.open .lightbox-inner { transform: scale(1); }

/* PROJECT DETAILS */
body.modal-open { overflow: hidden; }
.project-modal { position: fixed; inset: 0; z-index: 400; display: grid; place-items: center; padding: 24px; background: rgba(2,12,30,.82); backdrop-filter: blur(9px); opacity: 0; pointer-events: none; transition: opacity .25s ease; }
.project-modal.open { opacity: 1; pointer-events: auto; }
.project-modal-panel { width: min(760px,100%); max-height: min(780px,calc(100vh - 48px)); overflow-y: auto; background: linear-gradient(145deg,#0b2345,#071a36); border: 1px solid #2b6ca8; border-radius: 14px; padding: 34px; box-shadow: 0 28px 80px rgba(0,0,0,.55); transform: translateY(18px) scale(.98); transition: transform .25s ease; position: relative; }
.project-modal.open .project-modal-panel { transform: translateY(0) scale(1); }
.project-modal-close { position:absolute; top:18px; right:18px; width:34px; height:34px; border-radius:8px; border:1px solid var(--border-soft); background:var(--bg-panel-2); color:var(--text-muted); font-size:1.5rem; cursor:pointer; }
.project-modal-kicker,.project-modal-label { color:var(--accent-cyan); font:500 .72rem var(--font-mono); letter-spacing:.08em; }
.project-modal h2 { font:600 clamp(1.75rem,4vw,2.65rem) var(--font-body); margin:8px 44px 20px 0; letter-spacing:-.04em; }
.project-modal-tech { display:flex; flex-wrap:wrap; gap:7px; margin-bottom:28px; }
.project-modal-tech span { border:1px solid rgba(56,189,248,.45); background:rgba(56,189,248,.10); color:#b9e8ff; border-radius:99px; font:.7rem var(--font-mono); padding:5px 9px; }
.project-modal-section { border-top:1px solid rgba(154,182,212,.18); padding:20px 0; }
.project-modal-architecture { padding:14px; margin-top:10px; border-radius:8px; background:rgba(3,13,31,.58); border:1px solid rgba(154,182,212,.14); color:#c4e4ff; font:.82rem/1.65 var(--font-mono); }
.project-modal-description { color:var(--text-primary); line-height:1.75; margin-top:10px; }
.project-modal-group { color:#c4e4ff; font:.84rem/1.65 var(--font-mono); margin-top:10px; }

.project-modal-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 22px;
  border-top: 1px solid rgba(154,182,212,.18);
}

.project-modal-action {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 130px;
  padding: 10px 16px;
  border: 1px solid rgba(56,189,248,.35);
  border-radius: 8px;
  background: rgba(56,189,248,.08);
  color: #b9e8ff;
  font: 600 .78rem var(--font-mono);
  text-decoration: none;
  transition: transform .2s ease, border-color .2s ease, background .2s ease, color .2s ease;
}

.project-modal-action:hover {
  transform: translateY(-2px);
  border-color: var(--accent-cyan);
  background: rgba(56,189,248,.15);
  color: #fff;
}

/* Project "Link" action uses a clear blue button. */
.project-modal-link {
  background: #2563eb;
  border-color: #3b82f6;
  color: #fff;
}

.project-modal-link:hover {
  background: #1d4ed8;
  border-color: #60a5fa;
  color: #fff;
}

.project-modal-features { display:grid; grid-template-columns:1fr 1fr; gap:12px 24px; margin-top:13px; }
.project-modal-features li { color:var(--text-primary); font-size:.9rem; padding-left:20px; position:relative; }
.project-modal-features li::before { content:"✓"; position:absolute; left:0; color:var(--accent-cyan); }
@media (max-width:600px) { .project-modal-panel { padding:26px 20px; } .project-modal-features { grid-template-columns:1fr; } }

.lightbox-img { width: 100%; border-radius: 8px; margin-bottom: 16px; }
.lightbox-title { font-weight: 600; font-size: 1.05rem; margin-bottom: 4px; }
.lightbox-meta { font-family: var(--font-mono); font-size: 0.8rem; color: var(--accent-amber); }

.lightbox-close {
  position: absolute;
  top: -14px; right: -14px;
  width: 32px; height: 32px;
  border-radius: 50%;
  background: var(--bg-panel-2);
  border: 1px solid var(--border-soft);
  color: var(--text-primary);
  cursor: pointer;
  font-size: 0.9rem;
  transition: border-color 0.2s ease, color 0.2s ease;
}
.lightbox-close:hover { border-color: var(--accent-cyan); color: var(--accent-cyan); }


/* Fixed profile photo */
.profile-avatar-corner {
  position: fixed;
  top: 12px;
  left: 12px;
  width: 50px;
  height: 50px;
  padding: 0;
  border-radius: 50%;
  overflow: hidden;
  border: 2px solid var(--accent-cyan);
  background: var(--bg-panel-2);
  cursor: pointer;
  z-index: 1001;
  display: none;
  box-shadow: 0 0 14px rgba(56,189,248,0.30);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.profile-avatar-corner:hover {
  transform: scale(1.06);
  box-shadow: 0 0 20px rgba(56,189,248,0.50);
}

.profile-avatar-corner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* MOBILE */
@media (max-width: 600px) {

  :root {
    --nav-h: 54px;
  }

  .container {
    width: 100%;
    max-width: 100%;
    padding-left: 16px;
    padding-right: 16px;
  }

  section {
    padding: 72px 0;
  }

  .navbar .container {
    padding-left: 70px;
    padding-right: 12px;
  }

  .profile-avatar-corner {
    top: 8px;
    left: 10px;
    width: 46px;
    height: 46px;
  }

  .hero {
    min-height: auto;
    padding-top: calc(var(--nav-h) + 34px);
    padding-bottom: 70px;
  }

  .hero-grid {
    grid-template-columns: 1fr;
    gap: 22px;
  }

  .hero-visual {
    height: 260px !important;
    order: -1;
  }

  .terminal-body {
    padding: 20px 16px 24px;
    font-size: 0.78rem;
    overflow-wrap: anywhere;
  }

  .hero-name {
    font-size: clamp(1.35rem, 7vw, 1.85rem);
    overflow-wrap: anywhere;
  }

  .hero-meta {
    flex-direction: column;
    align-items: flex-start;
    gap: 8px;
  }

  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .hero-actions .btn {
    width: 100%;
    justify-content: center;
  }

  .section-title {
    font-size: clamp(1.35rem, 7vw, 1.8rem);
    margin-bottom: 30px;
  }

  .about-grid,
  .contact-grid {
    grid-template-columns: 1fr;
    gap: 28px;
  }

  .about-card {
    padding: 16px;
    font-size: 0.76rem;
  }

  .about-card .kv {
    gap: 14px;
    align-items: flex-start;
  }

  .about-card .kv .v {
    max-width: 62%;
    overflow-wrap: anywhere;
  }

  .skills-grid,
  .projects-grid,
  .stats-grid {
    grid-template-columns: 1fr;
  }

  .project-card {
    padding: 20px;
  }

  .filter-bar {
    gap: 7px;
  }

  .filter-btn {
    font-size: 0.68rem;
    padding: 7px 11px;
  }

  .contact-row {
    align-items: flex-start;
    flex-direction: column;
    gap: 5px;
  }

  .contact-value {
    max-width: 100%;
    overflow-wrap: anywhere;
  }

  .contact-form {
    padding: 18px;
  }

  .contact-form input,
  .contact-form textarea {
    width: 100%;
    font-size: 16px;
  }

  .contact-form .btn {
    width: 100%;
    justify-content: center;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .project-modal {
    padding: 10px;
  }

  .project-modal-panel {
    width: 100%;
    max-height: calc(100vh - 20px);
    padding: 22px 16px;
  }

  .project-modal-features {
    grid-template-columns: 1fr;
  }

  .orbit-ring.r1 {
    width: 110px;
    height: 110px;
  }

  .orbit-ring.r2 {
    width: 175px;
    height: 175px;
  }

  .orbit-core {
    width: 56px;
    height: 56px;
  }
}