@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=JetBrains+Mono:wght@400;500&display=swap');

:root {
  --bg-primary:        #f5f6f8;
  --bg-secondary:      #ffffff;
  --bg-tertiary:       #edf0f4;
  --bg-card:           #ffffff;
  --bg-card-hover:     #f8f9fb;
  --bg-nav:            rgba(245, 246, 248, 0.88);

  --text-primary:      #0d1117;
  --text-secondary:    #44526a;
  --text-muted:        #6b7a94;
  --text-inverse:      #ffffff;

  --accent-hue:        221;
  --accent:            hsl(var(--accent-hue), 83%, 53%);
  --accent-light:      hsl(var(--accent-hue), 83%, 95%);
  --accent-dark:       hsl(var(--accent-hue), 83%, 45%);
  --accent-glow:       hsla(var(--accent-hue), 83%, 53%, 0.20);

  --border:            #d8dde8;
  --border-strong:     #b8c2d4;

  --shadow-sm:         0 1px 4px rgba(30,40,80,0.08), 0 1px 2px rgba(30,40,80,0.05);
  --shadow-md:         0 4px 20px rgba(30,40,80,0.10), 0 2px 8px rgba(30,40,80,0.06);
  --shadow-lg:         0 16px 48px rgba(30,40,80,0.13), 0 4px 16px rgba(30,40,80,0.07);
  --shadow-accent:     0 4px 20px var(--accent-glow);

  --timeline-line:     #d8dde8;
  --timeline-dot:      var(--accent);

  --tag-bg:            hsl(var(--accent-hue), 70%, 95%);
  --tag-text:          hsl(var(--accent-hue), 83%, 38%);
  --tag-border:        hsl(var(--accent-hue), 70%, 84%);

  --input-bg:          #ffffff;
  --input-border:      #d8dde8;
  --input-focus:       var(--accent);
  --input-shadow-focus: 0 0 0 3px var(--accent-glow);

  --nav-scrolled-shadow: 0 2px 24px rgba(30,40,80,0.10);

  --transition-fast:   150ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base:   250ms cubic-bezier(0.4, 0, 0.2, 1);
  --transition-slow:   400ms cubic-bezier(0.4, 0, 0.2, 1);

  --font-body:         'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
  --font-mono:         'JetBrains Mono', 'Fira Code', monospace;

  --max-width:         1100px;
  --section-padding:   96px 24px;
  --radius-sm:         6px;
  --radius-md:         12px;
  --radius-lg:         20px;
  --radius-full:       9999px;

  --skill-bar-bg:      #d8dde8;
  --skill-bar-fill:    var(--accent);
}

[data-theme="dark"] {
  --bg-primary:        #0f1117;
  --bg-secondary:      #161b27;
  --bg-tertiary:       #1a2030;
  --bg-card:           #1a2030;
  --bg-card-hover:     #1f2840;
  --bg-nav:            rgba(15, 17, 23, 0.90);

  --text-primary:      #e8edf5;
  --text-secondary:    #94a3b8;
  --text-muted:        #64748b;
  --text-inverse:      #0d1117;

  --accent:            hsl(var(--accent-hue), 90%, 63%);
  --accent-light:      hsl(var(--accent-hue), 90%, 12%);
  --accent-dark:       hsl(var(--accent-hue), 90%, 55%);
  --accent-glow:       hsla(var(--accent-hue), 90%, 63%, 0.18);

  --border:            #2a3347;
  --border-strong:     #3a4560;

  --shadow-sm:         0 1px 3px rgba(0,0,0,0.30);
  --shadow-md:         0 4px 16px rgba(0,0,0,0.40);
  --shadow-lg:         0 12px 40px rgba(0,0,0,0.50);
  --shadow-accent:     0 4px 20px var(--accent-glow);

  --timeline-line:     #2a3347;

  --tag-bg:            hsl(var(--accent-hue), 60%, 12%);
  --tag-text:          hsl(var(--accent-hue), 90%, 70%);
  --tag-border:        hsl(var(--accent-hue), 60%, 22%);

  --input-bg:          #1a2030;
  --input-border:      #2a3347;

  --nav-scrolled-shadow: 0 2px 20px rgba(0,0,0,0.40);

  --skill-bar-bg:      #2a3347;
}

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  font-size: 16px;
}

body {
  font-family: var(--font-body);
  background-color: var(--bg-primary);
  color: var(--text-primary);
  line-height: 1.7;
  transition: background-color var(--transition-base), color var(--transition-base);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img { display: block; max-width: 100%; }
a { color: var(--accent); text-decoration: none; }
a:hover { text-decoration: underline; }
ul { list-style: none; }
button { font-family: inherit; cursor: pointer; border: none; background: none; }

::selection {
  background: var(--accent-glow);
  color: var(--accent-dark);
}

.section-label {
  display: inline-block;
  font-family: var(--font-mono);
  font-size: 0.78rem;
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 10px;
}

.section-title {
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 800;
  color: var(--text-primary);
  line-height: 1.2;
  letter-spacing: -0.03em;
}

.section-subtitle {
  font-size: 1.05rem;
  color: var(--text-secondary);
  max-width: 560px;
  margin-top: 12px;
}

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

section {
  padding: var(--section-padding);
}

section:nth-child(even) {
  background-color: var(--bg-tertiary);
}

#navbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  background: var(--bg-nav);
  backdrop-filter: blur(12px);
  -webkit-backdrop-filter: blur(12px);
  border-bottom: 1px solid transparent;
  transition:
    border-color var(--transition-base),
    box-shadow var(--transition-base),
    background var(--transition-base);
}

#navbar.scrolled {
  border-bottom-color: var(--border);
  box-shadow: var(--nav-scrolled-shadow);
}

.nav-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
  display: flex;
  align-items: center;
  gap: 8px;
  text-decoration: none;
}

.nav-logo span {
  color: var(--accent);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}

.nav-link {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 6px 12px;
  border-radius: var(--radius-sm);
  transition: color var(--transition-fast), background var(--transition-fast);
  text-decoration: none;
  position: relative;
}

.nav-link:hover,
.nav-link.active {
  color: var(--text-primary);
  background: var(--bg-card-hover);
  text-decoration: none;
}

.nav-link.active {
  color: var(--accent);
  background: var(--accent-light);
}

.nav-controls {
  display: flex;
  align-items: center;
  gap: 8px;
}

#theme-toggle {
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  transition: all var(--transition-fast);
  font-size: 1rem;
}

#theme-toggle:hover {
  color: var(--text-primary);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-sm);
}

.theme-sun-icon {
  width: 18px;
  height: 18px;
  display: block;
  transition: filter var(--transition-fast);
}

[data-theme="dark"] .theme-sun-icon {
  filter: invert(1) brightness(1.8);
}

#nav-toggle {
  display: none;
  width: 38px;
  height: 38px;
  border-radius: var(--radius-sm);
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  background: var(--bg-tertiary);
  border: 1px solid var(--border);
  font-size: 1.1rem;
  transition: all var(--transition-fast);
}

#hero {
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  padding-top: 80px;
  position: relative;
  overflow: hidden;
  background-color: var(--bg-primary);
}

#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--border) 1px, transparent 1px),
    linear-gradient(90deg, var(--border) 1px, transparent 1px);
  background-size: 48px 48px;
  opacity: 0.35;
  pointer-events: none;
}

#hero::after {
  content: '';
  position: absolute;
  inset: 0;
  background: radial-gradient(ellipse 80% 60% at 50% 100%, var(--bg-primary) 0%, transparent 60%);
  pointer-events: none;
}

.hero-blob {
  position: absolute;
  border-radius: 50%;
  filter: blur(80px);
  pointer-events: none;
  z-index: 0;
  opacity: 0.18;
  animation: blob-drift 14s ease-in-out infinite;
}

[data-theme="dark"] .hero-blob { opacity: 0.12; }

.hero-blob-1 {
  width: 520px;
  height: 520px;
  background: var(--accent);
  top: -120px;
  right: -80px;
  animation-delay: 0s;
}

.hero-blob-2 {
  width: 380px;
  height: 380px;
  background: hsl(var(--accent-hue), 80%, 70%);
  bottom: 60px;
  left: -100px;
  animation-delay: -5s;
  animation-duration: 18s;
}

.hero-blob-3 {
  width: 280px;
  height: 280px;
  background: hsl(calc(var(--accent-hue) + 40), 80%, 65%);
  top: 40%;
  right: 30%;
  animation-delay: -9s;
  animation-duration: 22s;
  opacity: 0.10;
}

@keyframes blob-drift {
  0%, 100% { transform: translate(0, 0) scale(1); }
  33%       { transform: translate(30px, -40px) scale(1.08); }
  66%       { transform: translate(-20px, 20px) scale(0.94); }
}

.hero-content {
  position: relative;
  z-index: 1;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.hero-badge {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.82rem;
  font-weight: 500;
  color: var(--text-secondary);
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-full);
  padding: 6px 14px;
  margin-bottom: 28px;
  box-shadow: var(--shadow-sm);
}

.badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 6px #22c55e80;
  animation: pulse-dot 2s ease-in-out infinite;
}

@keyframes pulse-dot {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.7; transform: scale(1.3); }
}

.hero-name {
  font-size: clamp(2.6rem, 8vw, 5rem);
  font-weight: 800;
  letter-spacing: -0.04em;
  line-height: 1.05;
  color: var(--text-primary);
  margin-bottom: 16px;
}

.hero-name .gradient-text {
  background: linear-gradient(
    120deg,
    var(--accent) 0%,
    hsl(var(--accent-hue), 90%, 72%) 40%,
    hsl(calc(var(--accent-hue) - 30), 90%, 68%) 60%,
    var(--accent) 100%
  );
  background-size: 200% auto;
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  animation: shimmer-text 4s linear infinite;
}

@keyframes shimmer-text {
  0%   { background-position: 0% center; }
  100% { background-position: 200% center; }
}

.hero-tagline {
  font-size: clamp(1.1rem, 2.5vw, 1.4rem);
  color: var(--text-secondary);
  font-weight: 400;
  max-width: 540px;
  margin-bottom: 36px;
  line-height: 1.6;
}

.hero-tagline strong {
  color: var(--text-primary);
  font-weight: 600;
}

.hero-cta {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.92rem;
  font-weight: 600;
  padding: 12px 22px;
  border-radius: var(--radius-md);
  border: 1.5px solid transparent;
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  letter-spacing: -0.01em;
}

.btn-primary {
  background: var(--accent);
  color: var(--text-inverse);
  border-color: var(--accent);
  box-shadow: var(--shadow-accent);
  will-change: transform;
}

.btn-primary:hover {
  background: var(--accent-dark);
  border-color: var(--accent-dark);
  box-shadow: 0 6px 28px var(--accent-glow);
  transform: translateY(-2px);
  text-decoration: none;
  color: var(--text-inverse);
}

.btn-secondary {
  background: transparent;
  color: var(--text-primary);
  border-color: var(--border-strong);
}

.btn-secondary:hover {
  background: var(--bg-card-hover);
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-1px);
  text-decoration: none;
}

.typing-cursor {
  display: inline-block;
  width: 2px;
  height: 1.1em;
  background: var(--accent);
  vertical-align: text-bottom;
  margin-left: 3px;
  border-radius: 1px;
  animation: blink-cursor 1.1s step-end infinite;
}

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

.scroll-indicator {
  position: absolute;
  bottom: 36px;
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
  font-size: 0.75rem;
  font-family: var(--font-mono);
  letter-spacing: 0.08em;
  animation: float-up 3s ease-in-out infinite;
}

.scroll-indicator i { font-size: 1rem; }

@keyframes float-up {
  0%, 100% { transform: translateX(-50%) translateY(0); opacity: 0.6; }
  50% { transform: translateX(-50%) translateY(-6px); opacity: 1; }
}

.hero-stats {
  display: flex;
  gap: 36px;
  margin-top: 52px;
  flex-wrap: wrap;
}

.stat-item {
  display: flex;
  flex-direction: column;
}

.stat-num {
  font-size: 1.8rem;
  font-weight: 800;
  color: var(--text-primary);
  letter-spacing: -0.03em;
  line-height: 1;
}

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 4px;
  font-weight: 500;
}

.skill-tag {
  animation: skill-pop 0.5s cubic-bezier(0.34, 1.56, 0.64, 1) both;
}

@keyframes skill-pop {
  from { opacity: 0; transform: translateY(10px) scale(0.85); }
  to   { opacity: 1; transform: translateY(0) scale(1); }
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 64px;
  align-items: start;
  margin-top: 56px;
}

.profile-wrap {
  position: relative;
  max-width: 340px;
}

.profile-img-container {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  aspect-ratio: 4/5;
  background: var(--bg-card);
  border: 1px solid var(--border);
  box-shadow: var(--shadow-lg);
}

.profile-img-container img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.profile-wrap::before {
  content: '';
  position: absolute;
  bottom: -12px;
  right: -12px;
  width: 60%;
  height: 60%;
  border-radius: var(--radius-lg);
  border: 2px solid var(--accent);
  z-index: -1;
  opacity: 0.4;
}

.about-bio {
  font-size: 1.05rem;
  color: var(--text-secondary);
  line-height: 1.85;
  margin-bottom: 28px;
}

.about-bio strong { color: var(--text-primary); font-weight: 600; }

.skills-title {
  font-size: 0.78rem;
  font-family: var(--font-mono);
  font-weight: 500;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-muted);
  margin-bottom: 16px;
  margin-top: 32px;
}

.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.skill-tag {
  font-size: 0.82rem;
  font-weight: 500;
  font-family: var(--font-mono);
  padding: 5px 12px;
  border-radius: var(--radius-sm);
  background: var(--tag-bg);
  color: var(--tag-text);
  border: 1px solid var(--tag-border);
  transition: all var(--transition-fast);
}

.skill-tag:hover {
  background: var(--accent);
  color: var(--text-inverse);
  border-color: var(--accent);
  transform: translateY(-1px);
}

.timeline {
  position: relative;
  margin-top: 56px;
  padding-left: 32px;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 8px;
  top: 6px;
  width: 2px;
  height: 0;
  background: linear-gradient(
    to bottom,
    var(--accent),
    var(--timeline-line)
  );
  transition: height 1.2s cubic-bezier(0.4, 0, 0.2, 1);
}

.timeline.line-drawn::before {
  height: calc(100% - 6px);
}

.timeline-item {
  position: relative;
  margin-bottom: 52px;
  padding-left: 36px;
}

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

.timeline-dot {
  position: absolute;
  left: -32px;
  top: 6px;
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: var(--bg-primary);
  border: 2.5px solid var(--timeline-line);
  transition: border-color var(--transition-base), box-shadow var(--transition-base);
}

.timeline-item:hover .timeline-dot {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.timeline-item.active-item .timeline-dot {
  background: var(--accent);
  border-color: var(--accent);
  box-shadow: 0 0 0 4px var(--accent-glow);
}

.timeline-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 24px 28px;
  box-shadow: var(--shadow-sm);
  transition: all var(--transition-base);
  position: relative;
  overflow: hidden;
}

.timeline-card::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    105deg,
    transparent 40%,
    rgba(255,255,255,0.07) 50%,
    transparent 60%
  );
  transform: translateX(-100%);
  transition: transform 0.5s ease;
  pointer-events: none;
}

[data-theme="dark"] .timeline-card::after {
  background: linear-gradient(
    105deg,
    transparent 40%,
    rgba(255,255,255,0.05) 50%,
    transparent 60%
  );
}

.timeline-card:hover::after {
  transform: translateX(100%);
}

.timeline-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
  transform: translateY(-2px);
}

.timeline-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
  margin-bottom: 6px;
}

.timeline-role {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.timeline-period {
  font-size: 0.8rem;
  font-family: var(--font-mono);
  color: var(--text-muted);
  background: var(--bg-tertiary);
  padding: 4px 10px;
  border-radius: var(--radius-full);
  border: 1px solid var(--border);
  white-space: nowrap;
  flex-shrink: 0;
}

.timeline-company {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  margin-bottom: 16px;
}

.timeline-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.timeline-bullets li {
  font-size: 0.92rem;
  color: var(--text-secondary);
  padding-left: 16px;
  position: relative;
  line-height: 1.6;
}

.timeline-bullets li::before {
  content: '→';
  position: absolute;
  left: 0;
  color: var(--accent);
  font-size: 0.8rem;
  top: 2px;
}

.section-header {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
  margin-bottom: 48px;
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: var(--radius-md);
  padding: 28px;
  display: flex;
  flex-direction: column;
  gap: 16px;
  box-shadow: var(--shadow-sm);
  transition: border-color var(--transition-base),
              box-shadow var(--transition-base),
              background var(--transition-base);
  position: relative;
  overflow: hidden;
  transform-style: preserve-3d;
  will-change: transform;
}

.project-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: linear-gradient(90deg, var(--accent), hsl(var(--accent-hue), 90%, 70%));
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.project-card:hover {
  border-color: var(--border-strong);
  box-shadow: var(--shadow-md);
}

.project-card:hover::before {
  transform: scaleX(1);
}

.project-icon {
  width: 44px;
  height: 44px;
  border-radius: var(--radius-sm);
  background: var(--accent-light);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
  font-size: 1.2rem;
}

.project-name {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--text-primary);
  letter-spacing: -0.02em;
}

.project-desc {
  font-size: 0.92rem;
  color: var(--text-secondary);
  line-height: 1.65;
  flex: 1;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.project-tag {
  font-size: 0.75rem;
  font-weight: 500;
  font-family: var(--font-mono);
  padding: 3px 9px;
  border-radius: var(--radius-full);
  background: var(--tag-bg);
  color: var(--tag-text);
  border: 1px solid var(--tag-border);
}

.project-links {
  display: flex;
  align-items: center;
  gap: 12px;
  padding-top: 4px;
  border-top: 1px solid var(--border);
  margin-top: auto;
}

.project-link {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 6px;
  transition: color var(--transition-fast);
  text-decoration: none;
}

.project-link:hover {
  color: var(--accent);
  text-decoration: none;
}

.project-link i { font-size: 0.9rem; }

.contact-grid {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 64px;
  margin-top: 56px;
  align-items: start;
}

.contact-info h3 {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  margin-bottom: 12px;
  letter-spacing: -0.02em;
}

.contact-info p {
  font-size: 0.95rem;
  color: var(--text-secondary);
  line-height: 1.7;
  margin-bottom: 28px;
}

.contact-links {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.contact-link-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 0.92rem;
  font-weight: 500;
  color: var(--text-secondary);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  border: 1px solid var(--border);
  background: var(--bg-card);
  transition: all var(--transition-fast);
  text-decoration: none;
}

.contact-link-item:hover {
  border-color: var(--accent);
  color: var(--accent);
  background: var(--accent-light);
  transform: translateX(4px);
  text-decoration: none;
}

.contact-link-item i {
  width: 20px;
  text-align: center;
  font-size: 1rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-label {
  font-size: 0.82rem;
  font-weight: 600;
  color: var(--text-secondary);
  letter-spacing: 0.01em;
}

.form-input,
.form-textarea {
  background: var(--input-bg);
  border: 1.5px solid var(--input-border);
  border-radius: var(--radius-md);
  padding: 12px 16px;
  font-size: 0.92rem;
  font-family: var(--font-body);
  color: var(--text-primary);
  transition: all var(--transition-fast);
  resize: none;
  outline: none;
  width: 100%;
}

.form-input:focus,
.form-textarea:focus {
  border-color: var(--input-focus);
  box-shadow: var(--input-shadow-focus);
}

.form-input::placeholder,
.form-textarea::placeholder {
  color: var(--text-muted);
}

.form-textarea { min-height: 140px; }

.form-status {
  font-size: 0.85rem;
  padding: 10px 14px;
  border-radius: var(--radius-sm);
  display: none;
}

.form-status.success {
  display: block;
  background: rgba(34, 197, 94, 0.1);
  color: #16a34a;
  border: 1px solid rgba(34, 197, 94, 0.25);
}

.form-status.error {
  display: block;
  background: rgba(239, 68, 68, 0.1);
  color: #dc2626;
  border: 1px solid rgba(239, 68, 68, 0.25);
}

footer {
  background: var(--bg-secondary);
  border-top: 1px solid var(--border);
  padding: 32px 24px;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 16px;
}

.footer-copy {
  font-size: 0.85rem;
  color: var(--text-muted);
}

.footer-copy a {
  color: var(--accent);
  font-weight: 500;
}

.footer-socials {
  display: flex;
  gap: 12px;
}

.footer-social-link {
  width: 34px;
  height: 34px;
  border-radius: var(--radius-sm);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  border: 1px solid var(--border);
  font-size: 0.9rem;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.footer-social-link:hover {
  color: var(--accent);
  border-color: var(--accent);
  background: var(--accent-light);
  text-decoration: none;
}

.fade-in {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.60s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.60s cubic-bezier(0.4, 0, 0.2, 1);
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

.fade-in-left {
  opacity: 0;
  transform: translateX(-28px);
  transition: opacity 0.60s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.60s cubic-bezier(0.4, 0, 0.2, 1);
}
.fade-in-left.visible { opacity: 1; transform: translateX(0); }

.fade-in-scale {
  opacity: 0;
  transform: scale(0.96) translateY(16px);
  transition: opacity 0.55s cubic-bezier(0.4, 0, 0.2, 1),
              transform 0.55s cubic-bezier(0.34, 1.2, 0.64, 1);
}
.fade-in-scale.visible { opacity: 1; transform: scale(1) translateY(0); }

.delay-1 { transition-delay: 0.08s; }
.delay-2 { transition-delay: 0.16s; }
.delay-3 { transition-delay: 0.24s; }
.delay-4 { transition-delay: 0.32s; }
.delay-5 { transition-delay: 0.40s; }

.mobile-menu {
  display: none;
  position: fixed;
  inset: 0;
  z-index: 999;
}

.mobile-menu-backdrop {
  position: absolute;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  opacity: 0;
  transition: opacity var(--transition-base);
}

.mobile-menu-panel {
  position: absolute;
  top: 0;
  right: 0;
  bottom: 0;
  width: min(300px, 80vw);
  background: var(--bg-secondary);
  border-left: 1px solid var(--border);
  padding: 80px 24px 24px;
  display: flex;
  flex-direction: column;
  gap: 4px;
  transform: translateX(100%);
  transition: transform var(--transition-slow);
  box-shadow: var(--shadow-lg);
}

.mobile-menu.open {
  display: block;
}

.mobile-menu.open .mobile-menu-backdrop {
  opacity: 1;
}

.mobile-menu.open .mobile-menu-panel {
  transform: translateX(0);
}

.mobile-nav-link {
  font-size: 1rem;
  font-weight: 600;
  color: var(--text-secondary);
  padding: 12px 16px;
  border-radius: var(--radius-md);
  display: block;
  transition: all var(--transition-fast);
  text-decoration: none;
}

.mobile-nav-link:hover,
.mobile-nav-link.active {
  color: var(--accent);
  background: var(--accent-light);
  text-decoration: none;
}

@media (max-width: 767px) {
  :root {
    --section-padding: 64px 20px;
  }

  .nav-links { display: none; }
  #nav-toggle { display: flex; }

  .hero-stats {
    gap: 24px;
    margin-top: 40px;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .profile-wrap {
    max-width: 260px;
    margin: 0 auto;
    order: -1;
  }

  .about-text {
    order: 1;
  }

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

  .contact-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }

  .timeline-header {
    flex-direction: column;
    gap: 8px;
  }

  .timeline-period {
    align-self: flex-start;
  }
}

@media (max-width: 480px) {
  :root {
    --section-padding: 56px 16px;
  }

  .hero-content {
    padding: 0 16px;
  }

  .hero-cta { flex-direction: column; align-items: flex-start; }
  .btn { width: 100%; justify-content: center; }

  .stat-num {
    font-size: 1.4rem;
  }

  .hero-stats {
    gap: 20px;
  }

  .section-header {
    flex-direction: column;
    align-items: flex-start;
  }

  .timeline {
    padding-left: 24px;
  }

  .timeline-item {
    padding-left: 28px;
  }

  .timeline-dot {
    left: -24px;
    width: 14px;
    height: 14px;
  }

  .timeline-card {
    padding: 18px 20px;
  }
}

@media (max-width: 375px) {
  .hero-name {
    font-size: 2.2rem;
  }

  .hero-tagline {
    font-size: 1rem;
  }

  .hero-badge {
    font-size: 0.75rem;
    padding: 5px 11px;
  }
}

@media (min-width: 1440px) {
  :root {
    --max-width: 1200px;
  }
}

::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb {
  background: var(--border-strong);
  border-radius: var(--radius-full);
}
::-webkit-scrollbar-thumb:hover { background: var(--accent); }

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

.nav-link::after {
  content: '';
  position: absolute;
  bottom: 2px;
  left: 12px;
  right: 12px;
  height: 2px;
  background: var(--accent);
  border-radius: var(--radius-full);
  transform: scaleX(0);
  transform-origin: center;
  transition: transform var(--transition-base);
}

.nav-link:hover::after,
.nav-link.active::after {
  transform: scaleX(1);
}

#cursor-spotlight {
  display: none;
  position: fixed;
  pointer-events: none;
  z-index: 0;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(
    circle at center,
    hsla(var(--accent-hue), 80%, 60%, 0.07) 0%,
    transparent 70%
  );
  transform: translate(-50%, -50%);
  transition: opacity 0.4s ease;
  top: 0;
  left: 0;
}

[data-theme="dark"] #cursor-spotlight {
  display: block;
}

.section-label {
  position: relative;
}

.section-label.visible-label {
  animation: label-glow 0.6s ease forwards;
}

@keyframes label-glow {
  0%   { letter-spacing: 0.08em; opacity: 0; }
  50%  { letter-spacing: 0.14em; opacity: 0.8; }
  100% { letter-spacing: 0.12em; opacity: 1; }
}

.contact-link-item {
  animation: none;
}
/* Tech Guy Animation */
.tech-guy-animation {
  width: 100%;
  max-width: 340px;
  margin: 0 auto;
}

.code-lines rect {
  animation: code-scroll 2s infinite alternate ease-in-out;
}

.code-lines rect:nth-child(2) { animation-delay: 0.2s; }
.code-lines rect:nth-child(3) { animation-delay: 0.4s; }
.code-lines rect:nth-child(4) { animation-delay: 0.6s; }
.code-lines rect:nth-child(5) { animation-delay: 0.8s; }
.code-lines rect:nth-child(6) { animation-delay: 1.0s; }

@keyframes code-scroll {
  0% { transform: translateX(0) scaleX(1); opacity: 1; }
  100% { transform: translateX(10px) scaleX(0.85); opacity: 0.7; }
}

.head-bob {
  animation: bob 3s infinite ease-in-out;
  transform-origin: 250px 240px;
}

@keyframes bob {
  0%, 100% { transform: translateY(0) rotate(0deg); }
  25% { transform: translateY(-3px) rotate(-2deg); }
  75% { transform: translateY(-1px) rotate(2deg); }
}

.arm-type-left {
  animation: type-left 0.4s infinite alternate;
  transform-origin: 200px 320px;
}

@keyframes type-left {
  0% { transform: rotate(0deg) translateY(0); }
  100% { transform: rotate(5deg) translateY(-5px); }
}

.arm-type-right {
  animation: type-right 0.3s infinite alternate-reverse;
  transform-origin: 300px 320px;
}

@keyframes type-right {
  0% { transform: rotate(0deg) translateY(0); }
  100% { transform: rotate(-5deg) translateY(-5px); }
}

.glow-pulse {
  animation: pulse-opacity 2s infinite alternate ease-in-out;
}

@keyframes pulse-opacity {
  0% { opacity: 0.15; }
  100% { opacity: 0.45; }
}