/* ============================================================
   RESET & ROOT
   ============================================================ */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  color-scheme: dark;
  --accent-r: 0;
  --accent-g: 212;
  --accent-b: 255;
  --accent:      rgb(var(--accent-r), var(--accent-g), var(--accent-b));
  --accent-dim:  rgba(var(--accent-r), var(--accent-g), var(--accent-b), 0.1);
  --accent-glow: rgba(var(--accent-r), var(--accent-g), var(--accent-b), 0.22);
  --accent-border: rgba(var(--accent-r), var(--accent-g), var(--accent-b), 0.3);

  --bg:        #060A15;
  --bg-card:   rgba(12, 18, 38, 0.85);
  --bg-card-h: rgba(16, 24, 50, 0.95);
  --bg-glass:  rgba(255, 255, 255, 0.032);

  --text:      #F1F5F9;
  --text-muted:#64748B;
  --text-dim:  #2a3650;

  --border:    rgba(255, 255, 255, 0.055);
  --border-h:  rgba(255, 255, 255, 0.11);

  --font-head: 'Archivo', sans-serif;
  --font-body: 'Space Grotesk', sans-serif;

  --z-cursor:  -1;
  --z-canvas:  0;
  --z-content: 10;
  --z-nav:     100;
  --z-overlay: 200;
  --z-top-btn: 50;
}

html {
  scroll-behavior: smooth;
  scrollbar-width: thin;
  scrollbar-color: rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.28) transparent;
}

::selection {
  background: rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.22);
  color: var(--accent);
}

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 4px;
}

::-webkit-scrollbar { width: 3px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb {
  background: rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.28);
  border-radius: 2px;
}
::-webkit-scrollbar-thumb:hover {
  background: rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.55);
}

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 16px;
  line-height: 1.6;
  overflow-x: hidden;
  animation: body-fade 0.5s ease-out;
}

body::before {
  content: '';
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 1;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='200' height='200'%3E%3Cfilter id='n'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.72' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='200' height='200' filter='url(%23n)' opacity='1'/%3E%3C/svg%3E");
  opacity: 0.028;
  mix-blend-mode: overlay;
}

@keyframes body-fade {
  from { opacity: 0; transform: translateY(6px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   SCROLL PROGRESS BAR
   ============================================================ */
#scroll-bar {
  position: fixed;
  top: 0; left: 0;
  height: 2px;
  width: 0%;
  background: var(--accent);
  z-index: 500;
  pointer-events: none;
  box-shadow: 0 0 10px rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.6);
  transition: background 0.6s, box-shadow 0.6s;
  will-change: width;
}

/* ============================================================
   CURSOR GLOW
   ============================================================ */
#cursor-glow {
  position: fixed;
  top: 0; left: 0;
  width: 380px; height: 380px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.055) 0%, transparent 70%);
  pointer-events: none;
  z-index: var(--z-cursor);
  transition: background 0.6s ease;
  will-change: transform;
}

/* ============================================================
   CANVAS
   ============================================================ */
#bg-canvas {
  position: fixed;
  inset: 0;
  z-index: var(--z-canvas);
  pointer-events: none;
}

/* ============================================================
   CONTAINER
   ============================================================ */
.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 28px;
}

/* ============================================================
   NAVBAR
   ============================================================ */
#navbar {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: var(--z-nav);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 26px 52px;
  transition: background 0.45s, padding 0.3s, border-color 0.45s, box-shadow 0.45s;
  border-bottom: 1px solid transparent;
}

#navbar.scrolled {
  background: rgba(6, 10, 21, 0.82);
  backdrop-filter: blur(24px) saturate(180%);
  -webkit-backdrop-filter: blur(24px) saturate(180%);
  padding: 14px 52px;
  border-bottom-color: var(--border);
  box-shadow: 0 1px 40px rgba(0,0,0,0.4);
}

.nav-logo {
  font-family: 'JetBrains Mono', monospace;
  font-size: 21px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text);
  text-decoration: none;
  transition: opacity 0.2s;
}
.nav-logo:hover { opacity: 0.8; }

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
}

.nav-link {
  font-size: 12.5px;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-muted);
  text-decoration: none;
  position: relative;
  transition: color 0.2s;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px; left: 0;
  width: 0; height: 1px;
  background: var(--accent);
  transition: width 0.3s ease, background 0.6s;
}

.nav-link:hover,
.nav-link.active { color: var(--text); }
.nav-link.active::after { width: 100%; }

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
}
.hamburger span {
  display: block;
  width: 22px; height: 1.5px;
  background: var(--text);
  transition: all 0.3s;
}

/* ============================================================
   MOBILE OVERLAY
   ============================================================ */
.mobile-overlay {
  display: none;
  position: fixed;
  inset: 0;
  z-index: var(--z-overlay);
  background: rgba(6, 10, 21, 0.97);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  align-items: center;
  justify-content: center;
}
.mobile-overlay.open { display: flex; }

.mobile-close {
  position: absolute;
  top: 24px; right: 32px;
  background: none;
  border: none;
  color: var(--text-muted);
  cursor: pointer;
  padding: 8px;
  transition: color 0.2s;
}
.mobile-close:hover { color: var(--text); }

.mobile-nav {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 30px;
}

.mobile-link {
  font-family: var(--font-head);
  font-size: 38px;
  font-weight: 700;
  letter-spacing: -1px;
  color: var(--text-muted);
  text-decoration: none;
  transition: color 0.2s, transform 0.2s;
}
.mobile-link:hover {
  color: var(--accent);
  transform: translateX(8px);
}

/* ============================================================
   SECTIONS
   ============================================================ */
.section {
  position: relative;
  z-index: var(--z-content);
  padding: 128px 0;
}

/* ============================================================
   ACCENT
   ============================================================ */
.accent {
  color: var(--accent);
  transition: color 0.6s ease;
}

/* ============================================================
   HERO
   ============================================================ */
#hero {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 80px 24px 120px;
}

.hero-inner { max-width: 880px; }

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 7px 18px;
  border-radius: 100px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  font-size: 11.5px;
  font-weight: 500;
  letter-spacing: 0.07em;
  text-transform: uppercase;
  margin-bottom: 40px;
  transition: background 0.6s, border-color 0.6s, color 0.6s;
  backdrop-filter: blur(8px);
}

.badge-dot {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: var(--accent);
  animation: pulse 2s ease-in-out infinite;
  transition: background 0.6s;
  flex-shrink: 0;
}

@keyframes pulse {
  0%,100% { opacity:1; transform:scale(1); }
  50%      { opacity:0.4; transform:scale(0.72); }
}

/* BlurText letter animation */
.hero-name {
  font-family: var(--font-head);
  font-size: clamp(40px, 7vw, 90px);
  font-weight: 800;
  letter-spacing: -3px;
  line-height: 0.92;
  margin-bottom: 30px;
  display: block;
}

.blur-letter {
  display: inline-block;
  opacity: 0;
  filter: blur(12px);
  transform: translateY(-20px);
  animation: blur-in 0.6s ease-out forwards;
  animation-delay: calc(var(--i, 0) * 0.065s + 0.3s);
}

.name-space {
  animation: none;
  opacity: 1;
  filter: none;
  transform: none;
}

@keyframes blur-in {
  to { opacity:1; filter:blur(0); transform:translateY(0); }
}

.hero-subtitle {
  font-size: clamp(18px, 2.5vw, 26px);
  font-weight: 400;
  color: var(--text-muted);
  margin-bottom: 18px;
  letter-spacing: -0.3px;
  min-height: 1.5em;
}

.typed-accent {
  color: var(--accent);
  font-weight: 500;
  transition: color 0.6s;
}

.type-cursor {
  color: var(--accent);
  animation: blink 1s step-end infinite;
  font-weight: 300;
  transition: color 0.6s;
}

@keyframes blink {
  0%,100% { opacity:1; }
  50%      { opacity:0; }
}

.hero-desc {
  font-size: 16px;
  color: var(--text-muted);
  line-height: 1.8;
  max-width: 500px;
  margin: 0 auto 44px;
}

.hero-cta {
  display: flex;
  gap: 14px;
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 13px 30px;
  border-radius: 10px;
  font-family: var(--font-body);
  font-size: 14px;
  font-weight: 500;
  letter-spacing: 0.02em;
  text-decoration: none;
  cursor: pointer;
  border: 1px solid transparent;
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.btn-primary {
  background: var(--accent);
  color: #060A15;
}

.btn-primary::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 35%, rgba(255,255,255,0.22) 50%, transparent 65%);
  background-size: 250% 100%;
  background-position: 250% 0;
  animation: btn-shimmer 3s ease-in-out infinite;
  pointer-events: none;
}

@keyframes btn-shimmer {
  0%   { background-position: 250% 0; }
  100% { background-position: -250% 0; }
}

.btn-primary:hover {
  filter: brightness(1.12);
  transform: translateY(-2px);
  box-shadow: 0 10px 32px var(--accent-glow), 0 0 0 1px rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.4);
}

.btn-outline {
  background: var(--bg-glass);
  backdrop-filter: blur(12px);
  color: var(--text);
  border-color: var(--border-h);
}

.btn-outline:hover {
  border-color: var(--accent-border);
  color: var(--accent);
  background: var(--accent-dim);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0,0,0,0.25);
}

/* ============================================================
   SCROLL HINT
   ============================================================ */
.scroll-hint {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 8px;
  color: var(--text-dim);
  font-size: 10px;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  animation: hint-float 2.5s ease-in-out infinite;
}

.scroll-mouse {
  width: 20px; height: 32px;
  border: 1.5px solid var(--text-dim);
  border-radius: 100px;
  display: flex;
  justify-content: center;
  padding-top: 6px;
}

.scroll-wheel {
  width: 3px; height: 6px;
  background: var(--text-dim);
  border-radius: 100px;
  animation: scroll-drop 1.8s ease-in-out infinite;
}

@keyframes scroll-drop {
  0%   { transform:translateY(0); opacity:1; }
  100% { transform:translateY(10px); opacity:0; }
}

@keyframes hint-float {
  0%,100% { transform:translateX(-50%) translateY(0); }
  50%      { transform:translateX(-50%) translateY(-6px); }
}

/* ============================================================
   SECTION HEADER
   ============================================================ */
.section-header { margin-bottom: 68px; }

.section-tag {
  display: inline-block;
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 14px;
  transition: color 0.6s;
}

.section-title {
  font-family: var(--font-head);
  font-size: clamp(34px, 5vw, 54px);
  font-weight: 700;
  letter-spacing: -2px;
  line-height: 1.05;
  color: var(--text);
}

.section-title::after {
  content: '';
  display: block;
  width: 40px; height: 2px;
  background: var(--accent);
  margin-top: 16px;
  border-radius: 2px;
  transition: background 0.6s, box-shadow 0.6s;
  box-shadow: 0 0 10px rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.5);
}

/* ============================================================
   ABOUT
   ============================================================ */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
}

.about-text p {
  color: var(--text-muted);
  line-height: 1.85;
  margin-bottom: 18px;
  font-size: 15px;
}

.about-stats {
  display: flex;
  gap: 40px;
  margin-top: 44px;
  padding-top: 36px;
  border-top: 1px solid var(--border);
  flex-wrap: wrap;
}

.stat-card {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

.stat-number {
  font-family: var(--font-head);
  font-size: 42px;
  font-weight: 800;
  letter-spacing: -2px;
  line-height: 1;
}

.stat-label {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* Terminal */
.terminal-card {
  background: rgba(4, 8, 20, 0.9);
  border: 1px solid var(--border);
  border-radius: 14px;
  overflow: hidden;
  font-family: 'Courier New', 'Fira Code', monospace;
  box-shadow: 0 40px 80px rgba(0,0,0,0.55), 0 0 0 1px rgba(255,255,255,0.03);
  backdrop-filter: blur(12px);
  transition: border-color 0.4s, box-shadow 0.4s;
}

.terminal-card:hover {
  border-color: var(--border-h);
  box-shadow: 0 40px 80px rgba(0,0,0,0.6),
              0 0 40px rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.04);
}

.terminal-header {
  display: flex;
  align-items: center;
  padding: 12px 16px;
  background: rgba(8, 14, 30, 0.95);
  border-bottom: 1px solid var(--border);
}

.terminal-dots { display: flex; gap: 6px; }
.t-dot { width: 10px; height: 10px; border-radius: 50%; }
.t-red    { background: #FF5F57; }
.t-yellow { background: #FEBC2E; }
.t-green  { background: #28C840; }

.terminal-title {
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  margin: 0 auto;
}

.terminal-body {
  padding: 22px 22px 28px;
  display: flex;
  flex-direction: column;
  gap: 5px;
}

.t-line {
  display: flex;
  gap: 0;
  font-size: 13px;
  line-height: 1.7;
}

.t-prompt      { color: var(--accent); font-weight: bold; flex-shrink: 0; transition: color 0.6s; }
.t-cmd         { color: var(--text); }
.t-output      { color: var(--text-muted); padding-left: 20px; }
.t-green-text  { color: #4ade80 !important; padding-left: 20px; }
.t-blink       { color: var(--accent); animation: blink 1s step-end infinite; }

/* ============================================================
   SKILLS
   ============================================================ */
.skills-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 44px 64px;
}

.skill-group {
  border-left: 2px solid rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.35);
  padding-left: 20px;
  transition: border-color 0.6s;
}

.skill-group-title {
  font-family: var(--font-head);
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.13em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
  display: flex;
  align-items: center;
  gap: 8px;
}

.skill-group-title svg {
  width: 14px; height: 14px;
  color: var(--accent);
  opacity: 0.7;
  transition: color 0.6s;
  flex-shrink: 0;
}

.skill-pills { display: flex; flex-wrap: wrap; gap: 10px; }

.pill {
  display: inline-block;
  padding: 6px 15px;
  border: 1px solid var(--border);
  border-radius: 7px;
  font-size: 13px;
  color: var(--text-muted);
  background: var(--bg-glass);
  backdrop-filter: blur(8px);
  transition: all 0.22s ease;
  cursor: default;
  user-select: none;
}

.pill:hover {
  border-color: var(--accent-border);
  color: var(--accent);
  background: var(--accent-dim);
  transform: translateY(-2px);
  box-shadow: 0 4px 16px rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.12);
}

.pill-dashed { border-style: dashed; opacity: 0.6; }
.pill-dashed:hover { opacity: 1; }

/* ============================================================
   PROJECTS
   ============================================================ */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

/* Glass card base */
.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 28px;
  cursor: default;
  transform-style: preserve-3d;
  transition: border-color 0.3s, box-shadow 0.3s, background 0.3s;
  will-change: transform;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  position: relative;
  overflow: hidden;
}

/* Subtle inner highlight top edge */
.project-card::after {
  content: '';
  position: absolute;
  top: 0; left: 20%; right: 20%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.07), transparent);
  pointer-events: none;
}

.project-card:hover {
  border-color: var(--accent-border);
  background: var(--bg-card-h);
  box-shadow: 0 24px 60px rgba(0,0,0,0.45),
              0 0 0 1px rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.1),
              0 0 40px rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.04);
}

/* Featured card — spans full width */
.project-featured {
  grid-column: 1 / -1;
  display: grid;
  grid-template-rows: auto auto auto;
  gap: 0;
}

.project-featured::before {
  content: '';
  position: absolute;
  inset: -1px;
  border-radius: 19px;
  background: linear-gradient(135deg,
    rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.45) 0%,
    transparent 45%,
    rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.12) 100%);
  z-index: -1;
  transition: background 0.6s, opacity 0.3s;
  opacity: 0.7;
}

.project-featured:hover::before { opacity: 1; }

/* Featured card top row */
.card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 20px;
}

/* featured layout overrides */
.project-featured .card-top {
  align-items: center;
  margin-bottom: 18px;
}

.card-left {
  display: flex;
  align-items: center;
  gap: 16px;
}

.featured-meta { display: flex; flex-direction: column; gap: 4px; }

.featured-label {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  transition: color 0.6s;
}

.card-right-top {
  display: flex;
  align-items: center;
  gap: 10px;
}

.card-icon {
  width: 46px; height: 46px;
  background: var(--accent-dim);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  transition: background 0.6s, color 0.6s, box-shadow 0.3s;
  flex-shrink: 0;
  border: 1px solid rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.2);
}

.project-card:hover .card-icon {
  box-shadow: 0 0 20px rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.15);
}

.card-icon svg { width: 22px; height: 22px; }

.card-links {
  display: flex;
  gap: 8px;
  align-items: center;
}

.card-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 34px; height: 34px;
  border-radius: 9px;
  border: 1px solid var(--border);
  color: var(--text-muted);
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  background: var(--bg-glass);
}

.card-link svg { width: 14px; height: 14px; }

.card-link:hover {
  border-color: var(--accent-border);
  color: var(--accent);
  background: var(--accent-dim);
  box-shadow: 0 0 12px rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.15);
}

.card-title {
  font-family: var(--font-head);
  font-size: 20px;
  font-weight: 600;
  letter-spacing: -0.5px;
  color: var(--text);
  margin-bottom: 10px;
}

.project-featured .card-title {
  font-size: 24px;
  letter-spacing: -1px;
}

.card-desc {
  font-size: 14px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 22px;
}

.card-tags { display: flex; flex-wrap: wrap; gap: 8px; }

.tag {
  font-size: 11px;
  padding: 4px 11px;
  background: rgba(255,255,255,0.032);
  border: 1px solid var(--border);
  border-radius: 5px;
  color: var(--text-muted);
  letter-spacing: 0.03em;
  transition: border-color 0.2s, color 0.2s;
}

.project-card:hover .tag {
  border-color: rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.18);
}

/* ============================================================
   STATUS BADGES
   ============================================================ */
.badge-live,
.badge-wip {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  white-space: nowrap;
}

.badge-live {
  background: rgba(74, 222, 128, 0.1);
  border: 1px solid rgba(74, 222, 128, 0.28);
  color: #4ade80;
}

.badge-wip {
  background: rgba(251, 191, 36, 0.1);
  border: 1px solid rgba(251, 191, 36, 0.28);
  color: #fbbf24;
}

.badge-pulse {
  width: 6px; height: 6px;
  border-radius: 50%;
  background: #4ade80;
  animation: pulse 2s ease-in-out infinite;
  flex-shrink: 0;
}

.badge-pulse-amber  { background: #fbbf24; }

.badge-codev {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 4px 11px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.06em;
  white-space: nowrap;
  background: rgba(139, 92, 246, 0.1);
  border: 1px solid rgba(139, 92, 246, 0.28);
  color: #a78bfa;
}

.badge-pulse-violet { background: #a78bfa; }

/* ============================================================
   TIMELINE
   ============================================================ */
.timeline {
  position: relative;
  padding-left: 28px;
  max-width: 760px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 8px; bottom: 8px;
  width: 1px;
  background: linear-gradient(to bottom,
    rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.8),
    rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.1));
  transition: background 0.6s;
}

.timeline-item {
  position: relative;
  padding-bottom: 52px;
}

.timeline-item:last-child { padding-bottom: 0; }

.tl-dot {
  position: absolute;
  left: -32px; top: 4px;
  width: 11px; height: 11px;
  border-radius: 50%;
  background: var(--accent);
  border: 2.5px solid var(--bg);
  box-shadow: 0 0 0 3px rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.25),
              0 0 16px rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.4);
  transition: background 0.6s, box-shadow 0.6s;
  opacity: 0.65;
}

.tl-date {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  margin-bottom: 10px;
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--accent-dim);
  border: 1px solid rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.2);
  transition: background 0.6s, border-color 0.6s, color 0.6s;
}

.tl-title {
  font-family: var(--font-head);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.5px;
  color: var(--text);
  margin-bottom: 12px;
}

.tl-desc {
  font-size: 14.5px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 16px;
  max-width: 600px;
}

.tl-tags { display: flex; gap: 8px; flex-wrap: wrap; }

.tl-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin-bottom: 12px;
}

.tl-title-row .tl-title { margin-bottom: 0; }

.tl-badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  padding: 3px 10px;
  border-radius: 5px;
  background: var(--accent-dim);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  transition: background 0.6s, border-color 0.6s, color 0.6s;
}

.tl-badge-muted {
  background: var(--bg-glass);
  border-color: var(--border);
  color: var(--text-muted);
}

.tl-dot-accent {
  opacity: 1 !important;
  box-shadow: 0 0 0 3px rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.3),
              0 0 24px rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.5) !important;
}

.tl-expand-btn {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  margin-top: 14px;
  padding: 5px 10px 5px 6px;
  border: 1px solid var(--border);
  border-radius: 6px;
  background: transparent;
  color: var(--text-muted);
  font-family: var(--font-body);
  font-size: 12px;
  cursor: pointer;
  transition: color 0.2s, border-color 0.2s, background 0.2s;
}
.tl-expand-btn:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: rgba(0,212,255,0.05);
}
.tl-expand-btn[aria-expanded="true"] {
  color: var(--accent);
  border-color: var(--accent);
}

.tl-chevron { transition: transform 0.3s ease; }
.tl-expand-btn[aria-expanded="true"] .tl-chevron { transform: rotate(90deg); }

.tl-children {
  max-height: 0;
  overflow: hidden;
  opacity: 0;
  transition: max-height 0.45s ease, opacity 0.3s ease, margin-top 0.3s ease;
  margin-top: 0;
}
.tl-children.open {
  max-height: 400px;
  opacity: 1;
  margin-top: 20px;
}

.tl-child-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  position: relative;
  padding-left: 24px;
}
.tl-child-connector {
  position: absolute;
  left: 6px;
  top: -20px;
  width: 18px;
  height: calc(100% + 20px);
  border-left: 1px dashed var(--border);
  border-bottom: 1px dashed var(--border);
  border-bottom-left-radius: 6px;
  pointer-events: none;
}
.tl-child-dot {
  flex-shrink: 0;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--accent);
  opacity: 0.5;
  margin-top: 6px;
}

/* ============================================================
   CERTIFICATIONS
   ============================================================ */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}

.cert-card {
  display: flex;
  align-items: center;
  gap: 16px;
  padding: 20px 22px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  transition: all 0.25s ease;
  position: relative;
  overflow: hidden;
}

.cert-card::after {
  content: '';
  position: absolute;
  top: 0; left: 20%; right: 20%;
  height: 1px;
  background: linear-gradient(90deg, transparent, rgba(255,255,255,0.06), transparent);
  pointer-events: none;
}

.cert-card:hover {
  border-color: rgba(var(--br,var(--accent-r)), var(--bg,var(--accent-g)), var(--bb,var(--accent-b)), 0.35);
  background: var(--bg-card-h);
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.35),
              0 0 0 1px rgba(var(--br,var(--accent-r)), var(--bg,var(--accent-g)), var(--bb,var(--accent-b)), 0.1);
}

.cert-logo {
  width: 48px; height: 48px;
  border-radius: 12px;
  background: rgba(var(--br,66), var(--bg,133), var(--bb,244), 0.12);
  border: 1px solid rgba(var(--br,66), var(--bg,133), var(--bb,244), 0.25);
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
  transition: box-shadow 0.25s;
}

.cert-card:hover .cert-logo {
  box-shadow: 0 0 20px rgba(var(--br,66), var(--bg,133), var(--bb,244), 0.2);
}

.cert-info {
  display: flex;
  flex-direction: column;
  gap: 3px;
  min-width: 0;
}

.cert-issuer {
  font-size: 10.5px;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: var(--text-muted);
}

.cert-name {
  font-family: var(--font-head);
  font-size: 14px;
  font-weight: 600;
  color: var(--text);
  letter-spacing: -0.3px;
  line-height: 1.3;
}

.cert-meta {
  font-size: 11px;
  color: var(--text-muted);
  letter-spacing: 0.03em;
}

/* "& more" LinkedIn card */
.cert-more {
  text-decoration: none;
  cursor: pointer;
  justify-content: space-between;
  border-style: dashed;
  border-color: var(--border-h);
  background: transparent;
}

.cert-more:hover {
  border-style: solid;
  border-color: var(--accent-border);
  background: var(--accent-dim);
  transform: translateY(-3px);
  box-shadow: 0 16px 40px rgba(0,0,0,0.3),
              0 0 0 1px rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.1);
}

.cert-more-inner {
  display: flex;
  align-items: center;
  gap: 16px;
}

.cert-more-dots {
  display: flex;
  gap: 5px;
  flex-shrink: 0;
}

.cert-more-dots span {
  display: block;
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--text-dim);
  transition: background 0.3s;
}

.cert-more:hover .cert-more-dots span { background: var(--accent); }
.cert-more-dots span:nth-child(2) { opacity: 0.6; }
.cert-more-dots span:nth-child(3) { opacity: 0.3; }

.cert-more-text {
  display: flex;
  flex-direction: column;
  gap: 3px;
}

.cert-more-label {
  font-family: var(--font-head);
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.5px;
  color: var(--text-muted);
  transition: color 0.25s;
}

.cert-more:hover .cert-more-label { color: var(--accent); }

.cert-more-sub {
  font-size: 12px;
  color: var(--text-dim);
  transition: color 0.25s;
}

.cert-more:hover .cert-more-sub { color: var(--text-muted); }

.cert-more-arrow {
  width: 18px; height: 18px;
  color: var(--text-dim);
  flex-shrink: 0;
  transition: color 0.25s, transform 0.25s;
}

.cert-more:hover .cert-more-arrow {
  color: var(--accent);
  transform: translate(3px, -3px);
}

/* ============================================================
   CONTACT
   ============================================================ */
.contact-content { max-width: 640px; }

.contact-text {
  font-size: 17px;
  color: var(--text-muted);
  line-height: 1.8;
  margin-bottom: 40px;
}

.contact-cards {
  display: flex;
  flex-direction: column;
  gap: 14px;
}

.contact-card {
  display: flex;
  align-items: center;
  gap: 18px;
  padding: 22px 26px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 14px;
  text-decoration: none;
  color: var(--text);
  cursor: pointer;
  transition: all 0.25s ease;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  position: relative;
  overflow: hidden;
}

.contact-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(105deg, transparent 40%, rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.04) 60%, transparent 80%);
  opacity: 0;
  transition: opacity 0.4s;
}

.contact-card:hover {
  border-color: var(--accent-border);
  background: var(--bg-card-h);
  transform: translateX(6px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.3), 0 0 0 1px rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.08);
}

.contact-card:hover::before { opacity: 1; }

.contact-icon {
  width: 22px; height: 22px;
  color: var(--accent);
  flex-shrink: 0;
  transition: color 0.6s;
}

.contact-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 2px;
}

.contact-platform { font-size: 15px; font-weight: 600; color: var(--text); }
.contact-handle   { font-size: 13px; color: var(--text-muted); }

.arrow-icon {
  width: 18px; height: 18px;
  color: var(--text-dim);
  transition: color 0.25s, transform 0.25s;
}

.contact-card:hover .arrow-icon {
  color: var(--accent);
  transform: translate(3px, -3px);
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  text-align: center;
  padding: 52px 24px 36px;
  margin-top: 80px;
  border-top: 1px solid var(--border);
  color: var(--text-dim);
  font-size: 13px;
  letter-spacing: 0.03em;
}

/* ============================================================
   BACK TO TOP
   ============================================================ */
#back-top {
  position: fixed;
  bottom: 32px; right: 32px;
  z-index: var(--z-top-btn);
  width: 46px; height: 46px;
  border-radius: 12px;
  background: var(--bg-card);
  border: 1px solid var(--border-h);
  color: var(--text-muted);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all 0.3s ease;
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
}

#back-top.visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}

#back-top:hover {
  border-color: var(--accent-border);
  color: var(--accent);
  background: var(--accent-dim);
  box-shadow: 0 8px 24px rgba(0,0,0,0.3), 0 0 16px rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.12);
  transform: translateY(-2px);
}

/* ============================================================
   EASTER EGG
   ============================================================ */
#easter-egg {
  position: fixed;
  inset: 0;
  z-index: 900;
  background: rgba(6,10,21,0.97);
  backdrop-filter: blur(28px);
  -webkit-backdrop-filter: blur(28px);
  display: flex;
  align-items: center;
  justify-content: center;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s;
}

#easter-egg.open {
  opacity: 1;
  pointer-events: auto;
}

.egg-inner {
  background: rgba(4,8,20,0.95);
  border: 1px solid var(--accent-border);
  border-radius: 14px;
  width: min(560px, 90vw);
  font-family: 'JetBrains Mono', monospace;
  box-shadow: 0 40px 80px rgba(0,0,0,0.6),
              0 0 60px rgba(var(--accent-r),var(--accent-g),var(--accent-b),0.08);
  overflow: hidden;
  transition: border-color 0.6s, box-shadow 0.6s;
}

.egg-header {
  display: flex;
  align-items: center;
  gap: 6px;
  padding: 12px 16px;
  background: rgba(8,14,30,0.95);
  border-bottom: 1px solid var(--border);
}

.egg-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  flex-shrink: 0;
}

.egg-title {
  font-size: 12px;
  color: var(--text-dim);
  letter-spacing: 0.06em;
  margin: 0 auto;
}

.egg-body {
  padding: 28px 28px 18px;
  font-size: 13px;
  color: var(--accent);
  line-height: 1.9;
  min-height: 148px;
  white-space: pre-wrap;
  transition: color 0.6s;
}

.egg-hint {
  padding: 0 28px 20px;
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.08em;
}

/* ============================================================
   TOAST
   ============================================================ */
#toast {
  position: fixed;
  bottom: 32px; left: 50%;
  transform: translateX(-50%) translateY(20px);
  background: rgba(9,13,26,0.95);
  border: 1px solid var(--accent-border);
  color: var(--accent);
  padding: 10px 22px;
  border-radius: 10px;
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.02em;
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  box-shadow: 0 8px 32px rgba(0,0,0,0.5), 0 0 0 1px rgba(255,255,255,0.04);
  transition: transform 0.35s cubic-bezier(0.23,1,0.32,1), opacity 0.35s, border-color 0.6s, color 0.6s;
  opacity: 0;
  pointer-events: none;
  z-index: 400;
  white-space: nowrap;
}

#toast.show {
  transform: translateX(-50%) translateY(0);
  opacity: 1;
}

/* ============================================================
   REVEAL ANIMATION
   ============================================================ */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  filter: blur(4px);
  transition: opacity 0.7s ease, transform 0.7s ease, filter 0.7s ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
  filter: blur(0);
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 1024px) {
  #navbar { padding: 18px 32px; }
  #navbar.scrolled { padding: 12px 32px; }
  .projects-grid { gap: 16px; }
}

@media (max-width: 1024px) {
  .certs-grid { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 768px) {
  .section { padding: 88px 0; }
  #navbar { padding: 16px 24px; }
  #navbar.scrolled { padding: 12px 24px; }
  .nav-links { display: none; }
  .hamburger { display: flex; }
  .hero-name { letter-spacing: -2px; }
  .about-grid    { grid-template-columns: 1fr; gap: 44px; }
  .skills-grid   { grid-template-columns: 1fr; gap: 32px; }
  .projects-grid { grid-template-columns: 1fr; }
  .project-featured { grid-column: auto; }
  .about-stats   { gap: 24px; }
  .certs-grid    { grid-template-columns: 1fr; }
  #back-top { bottom: 20px; right: 20px; }
  #cursor-glow { display: none; }
}

@media (max-width: 480px) {
  #hero { padding: 80px 20px 100px; }
  .hero-cta { flex-direction: column; align-items: center; }
  .section-title { letter-spacing: -1px; }
  .stat-number { font-size: 34px; }
}

/* ============================================================
   REDUCED MOTION
   ============================================================ */
@media (prefers-reduced-motion: reduce) {
  *, *::before, *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
  html { scroll-behavior: auto; }
  #bg-canvas { display: none; }
  #cursor-glow { display: none; }
  .blur-letter { opacity:1; filter:none; transform:none; }
  .reveal { opacity:1; transform:none; filter:none; }
}

/* ============================================================
   POINTER COARSE (touch devices — hide cursor glow)
   ============================================================ */
@media (pointer: coarse) {
  #cursor-glow { display: none; }
}