:root[data-theme="dark"] {
  --bg:        #0d0d0f;
  --bg2:       #131316;
  --bg3:       #1a1a1f;
  --border:    #2a2a32;
  --text:      #e8e8ee;
  --text2:     #888899;
  --text3:     #55556a;
  --accent:    #e8ff47;
  --accent2:   #b8d400;
  --tag-bg:    #1f1f28;
  --card-bg:   #131316;
  --nav-bg:    rgba(13,13,15,0.85);
  --shadow:    0 8px 40px rgba(0,0,0,0.6);
}
:root[data-theme="light"] {
  --bg:        #f5f5f0;
  --bg2:       #ecece6;
  --bg3:       #e2e2dc;
  --border:    #d0d0c8;
  --text:      #1a1a1f;
  --text2:     #666670;
  --text3:     #aaaaaa;
  --accent:    #2d6a00;
  --accent2:   #4a9500;
  --tag-bg:    #e0e0d8;
  --card-bg:   #ffffff;
  --nav-bg:    rgba(245,245,240,0.88);
  --shadow:    0 8px 40px rgba(0,0,0,0.10);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: 'DM Sans', sans-serif;
  background: var(--bg);
  color: var(--text);
  min-height: 100vh;
  transition: background 0.35s, color 0.35s;
  overflow-x: hidden;
}
body::before {
  content: '';
  position: fixed; inset: 0;
  background-image: url("data:image/svg+xml,%3Csvg viewBox='0 0 256 256' xmlns='http://www.w3.org/2000/svg'%3E%3Cfilter id='noise'%3E%3CfeTurbulence type='fractalNoise' baseFrequency='0.9' numOctaves='4' stitchTiles='stitch'/%3E%3C/filter%3E%3Crect width='100%25' height='100%25' filter='url(%23noise)' opacity='0.04'/%3E%3C/svg%3E");
  pointer-events: none; z-index: 0; opacity: 0.4;
}

/* NAV */
nav {
  position: fixed; top: 0; left: 0; right: 0; z-index: 100;
  backdrop-filter: blur(16px);
  background: var(--nav-bg);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 clamp(1.5rem, 5vw, 4rem);
  height: 64px;
  transition: background 0.35s, border-color 0.35s;
}
.nav-logo {
  font-family: 'Syne', sans-serif;
  font-weight: 800; font-size: 1.1rem;
  letter-spacing: -0.02em;
  color: var(--text); text-decoration: none;
  display: flex; align-items: center; gap: 8px;
}
.nav-logo-dot {
  display: inline-block;
  width: 8px; height: 8px; border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent);
}
.nav-links { display: flex; align-items: center; gap: 2rem; }
.nav-links a {
  font-family: 'DM Mono', monospace;
  font-size: 0.78rem;
  color: var(--text2); text-decoration: none;
  letter-spacing: 0.04em;
  transition: color 0.2s;
  position: relative; cursor: pointer;
}
.nav-links a:hover, .nav-links a.active { color: var(--text); }
.nav-links a.active::after {
  content: '';
  position: absolute; bottom: -4px; left: 0; right: 0;
  height: 1px; background: var(--accent);
}
.theme-toggle {
  background: var(--bg3);
  border: 1px solid var(--border);
  border-radius: 50px;
  width: 52px; height: 28px;
  cursor: pointer; position: relative;
  transition: background 0.3s, border-color 0.3s;
  flex-shrink: 0;
}
.theme-toggle::after {
  content: '';
  position: absolute; top: 3px; left: 3px;
  width: 20px; height: 20px; border-radius: 50%;
  background: var(--accent);
  transition: transform 0.3s;
  box-shadow: 0 0 8px var(--accent);
}
[data-theme="light"] .theme-toggle::after { transform: translateX(24px); }

/* PAGES */
.page { display: none; min-height: 100vh; padding-top: 64px; position: relative; z-index: 1; }
.page.active { display: block; animation: fadeIn 0.4s ease; }
@keyframes fadeIn { from { opacity:0; transform:translateY(10px); } to { opacity:1; transform:translateY(0); } }

/* HOME */
.home-hero {
  min-height: calc(100vh - 64px);
  display: grid; grid-template-columns: 1fr 1fr;
  align-items: center; gap: 4rem;
  padding: clamp(3rem, 8vw, 3rem) clamp(1.5rem, 6vw, 5rem);
  max-width: 1200px; margin: 0 auto;
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 8px;
  font-family: 'DM Mono', monospace; font-size: 0.72rem;
  letter-spacing: 0.1em; text-transform: uppercase;
  color: var(--accent);
  background: color-mix(in srgb, var(--accent) 10%, transparent);
  border: 1px solid color-mix(in srgb, var(--accent) 30%, transparent);
  padding: 6px 14px; border-radius: 50px; margin-bottom: 2rem;
  animation: fadeUp 0.6s ease both;
}
.hero-badge::before { content: '▶'; font-size: 0.6rem; }
.hero-name {
  font-family: 'Syne', sans-serif; font-weight: 800;
  font-size: clamp(3rem, 7vw, 5.5rem);
  line-height: 0.95; letter-spacing: -0.04em;
  color: var(--text); margin-bottom: 1.5rem;
  animation: fadeUp 0.6s 0.1s ease both;
}
.hero-name em { font-style: normal; color: var(--accent); display: block; }
.hero-desc {
  font-size: 1.05rem; color: var(--text2); line-height: 1.7;
  max-width: 480px; margin-bottom: 2.5rem;
  animation: fadeUp 0.6s 0.2s ease both;
}
.hero-cta { display: flex; gap: 1rem; flex-wrap: wrap; animation: fadeUp 0.6s 0.3s ease both; }
.btn-primary {
  font-family: 'DM Mono', monospace; font-size: 0.82rem;
  letter-spacing: 0.04em; background: var(--accent);
  color: #0d0d0f; border: none; padding: 14px 28px;
  border-radius: 6px; cursor: pointer; font-weight: 500;
  transition: transform 0.2s, box-shadow 0.2s;
}
.btn-primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 24px color-mix(in srgb, var(--accent) 40%, transparent);
}
.btn-secondary {
  font-family: 'DM Mono', monospace; font-size: 0.82rem;
  letter-spacing: 0.04em; background: transparent;
  color: var(--text); border: 1px solid var(--border);
  padding: 14px 28px; border-radius: 6px; cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
}
.btn-secondary:hover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 6%, transparent);
}

/* Code window */
.code-window {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden; box-shadow: var(--shadow);
  animation: fadeUp 0.6s 0.15s ease both;
}
.code-titlebar {
  background: var(--bg3); border-bottom: 1px solid var(--border);
  padding: 12px 16px; display: flex; align-items: center; gap: 8px;
}
.dot { width: 12px; height: 12px; border-radius: 50%; }
.dot-r { background: #ff5f57; } .dot-y { background: #febc2e; } .dot-g { background: #28c840; }
.code-filename { font-family: 'DM Mono', monospace; font-size: 0.72rem; color: var(--text3); margin-left: 8px; }
.code-body { padding: 1.5rem 1.8rem; font-family: 'DM Mono', monospace; font-size: 0.82rem; line-height: 2; }
.c-comment { color: var(--text3); }
.c-keyword { color: #ff79c6; }
[data-theme="light"] .c-keyword { color: #c026d3; }
.c-class { color: #8be9fd; }
[data-theme="light"] .c-class { color: #0e7490; }
.c-fn { color: var(--accent); }
.c-str { color: #f1fa8c; }
[data-theme="light"] .c-str { color: #92400e; }
.c-var { color: var(--text2); }
.c-indent { padding-left: 1.5rem; }
.c-i2 { padding-left: 3rem; }
.c-i3 { padding-left: 4.5rem; }
.cursor {
  display: inline-block; width: 2px; height: 1em;
  background: var(--accent); vertical-align: text-bottom;
  animation: blink 1s step-end infinite; margin-left: 1px;
}

/* Stats */
.stats-row {
  display: flex; gap: 2rem;
  padding: 2.5rem clamp(1.5rem, 6vw, 5rem);
  max-width: 1200px; margin: 0 auto;
  border-top: 1px solid var(--border); flex-wrap: wrap;
}
.stat-item { flex: 1; min-width: 120px; }
.stat-num {
  font-family: 'Syne', sans-serif; font-size: 2.2rem;
  font-weight: 800; color: var(--text); letter-spacing: -0.04em;
}
.stat-num span { color: var(--accent); }
.stat-label {
  font-family: 'DM Mono', monospace; font-size: 0.72rem;
  color: var(--text3); text-transform: uppercase; letter-spacing: 0.08em; margin-top: 4px;
}

/* Skills */
.section { padding: 5rem clamp(1.5rem, 6vw, 5rem); max-width: 1200px; margin: 0 auto; }
.section-label {
  font-family: 'DM Mono', monospace; font-size: 0.72rem;
  text-transform: uppercase; letter-spacing: 0.12em;
  color: var(--accent); margin-bottom: 1rem;
}
.section-title {
  font-family: 'Syne', sans-serif; font-weight: 800;
  font-size: clamp(1.8rem, 4vw, 2.8rem);
  letter-spacing: -0.03em; color: var(--text);
  margin-bottom: 3rem; line-height: 1.1;
}
.skills-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(260px, 1fr)); gap: 1rem; }
.skill-card {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: 10px; padding: 1.4rem 1.6rem;
  transition: border-color 0.2s, transform 0.2s;
  position: relative; overflow: hidden;
}
.skill-card::before {
  content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px;
  background: var(--accent); transform: scaleX(0); transform-origin: left; transition: transform 0.3s;
}
.skill-card:hover { border-color: var(--accent); transform: translateY(-2px); }
.skill-card:hover::before { transform: scaleX(1); }
.skill-icon { font-size: 1.5rem; margin-bottom: 0.7rem; }
.skill-name { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 1rem; color: var(--text); margin-bottom: 0.4rem; }
.skill-desc { font-size: 0.82rem; color: var(--text2); line-height: 1.5; }
.skill-bar { margin-top: 0.8rem; height: 3px; background: var(--border); border-radius: 2px; overflow: hidden; }
.skill-fill { height: 100%; background: var(--accent); border-radius: 2px; }

/* PROJECTS */
.projects-header {
  padding: 4rem clamp(1.5rem, 6vw, 5rem) 2rem;
  max-width: 1200px; margin: 0 auto; border-bottom: 1px solid var(--border);
}
.projects-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(320px, 1fr));
  gap: 1.5rem; padding: 3rem clamp(1.5rem, 6vw, 5rem);
  max-width: 1200px; margin: 0 auto;
}
.project-card {
  background: var(--card-bg); border: 1px solid var(--border);
  border-radius: 12px; overflow: hidden;
  transition: border-color 0.2s, transform 0.25s, box-shadow 0.25s;
}
.project-card:hover { border-color: var(--accent); transform: translateY(-4px); box-shadow: var(--shadow); }
.project-thumb {
  height: 160px; background: var(--bg3);
  border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden;
}
.project-thumb-bg {
  position: absolute; inset: 0;
  background: linear-gradient(135deg, var(--bg3) 0%, var(--bg2) 100%);
  opacity: 0.6;
}
.project-thumb-icon { font-size: 2.8rem; opacity: 0.25; position: relative; z-index: 1; }
.project-thumb-label {
  position: absolute; bottom: 12px; left: 16px;
  font-family: 'DM Mono', monospace; font-size: 0.68rem;
  letter-spacing: 0.08em; color: var(--text3); text-transform: uppercase; z-index: 1;
}
.project-body { padding: 1.4rem; }
.project-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 0.8rem; }
.tag {
  font-family: 'DM Mono', monospace; font-size: 0.67rem;
  letter-spacing: 0.05em; background: var(--tag-bg);
  color: var(--text2); padding: 3px 10px;
  border-radius: 50px; border: 1px solid var(--border);
}
.tag.accent {
  background: color-mix(in srgb, var(--accent) 12%, transparent);
  color: var(--accent);
  border-color: color-mix(in srgb, var(--accent) 30%, transparent);
}
.project-title { font-family: 'Syne', sans-serif; font-weight: 700; font-size: 1.1rem; color: var(--text); margin-bottom: 0.5rem; }
.project-desc { font-size: 0.83rem; color: var(--text2); line-height: 1.6; margin-bottom: 1.2rem; }
.project-links { display: flex; gap: 0.7rem; align-items: center; }
.project-link {
  font-family: 'DM Mono', monospace; font-size: 0.72rem;
  color: var(--text2); text-decoration: none;
  display: flex; align-items: center; gap: 5px; transition: color 0.2s;
}
.project-link:hover { color: var(--accent); }
.project-link-primary {
  font-family: 'DM Mono', monospace; font-size: 0.72rem;
  background: var(--accent); color: #0d0d0f;
  padding: 7px 16px; border-radius: 5px;
  text-decoration: none; transition: opacity 0.2s;
}
.project-link-primary:hover { opacity: 0.85; }
.add-project-card {
  background: transparent; border: 2px dashed var(--border);
  border-radius: 12px; min-height: 320px;
  display: flex; flex-direction: column; align-items: center; justify-content: center; gap: 0.8rem;
  transition: border-color 0.2s, background 0.2s;
}
.add-project-card:hover {
  border-color: var(--accent);
  background: color-mix(in srgb, var(--accent) 3%, transparent);
}
.add-icon { font-size: 2rem; color: var(--text3); }
.add-label { font-family: 'DM Mono', monospace; font-size: 0.78rem; color: var(--text3); text-align: center; max-width: 160px; line-height: 1.5; }

/* CONTACT */
.contact-wrap { padding: 4rem clamp(1.5rem, 6vw, 5rem); max-width: 900px; margin: 0 auto; }
.contact-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 4rem; margin-top: 3rem; align-items: start; }
.contact-item { display: flex; align-items: flex-start; gap: 1rem; margin-bottom: 2rem; }
.contact-icon {
  width: 42px; height: 42px;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; display: flex; align-items: center; justify-content: center;
  font-size: 1rem; flex-shrink: 0;
}
.contact-detail-label { font-family: 'DM Mono', monospace; font-size: 0.7rem; letter-spacing: 0.08em; text-transform: uppercase; color: var(--text3); margin-bottom: 3px; }
.contact-detail-val { font-size: 0.9rem; color: var(--text); }
.contact-detail-val a { color: var(--accent); text-decoration: none; }
.social-row { display: flex; gap: 0.8rem; margin-top: 2rem; flex-wrap: wrap; }
.social-btn {
  display: flex; align-items: center; gap: 7px;
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 8px; padding: 10px 16px;
  text-decoration: none; color: var(--text2);
  font-family: 'DM Mono', monospace; font-size: 0.75rem;
  transition: border-color 0.2s, color 0.2s;
}
.social-btn:hover { border-color: var(--accent); color: var(--accent); }
.contact-form { display: flex; flex-direction: column; gap: 1rem; }
.form-group { display: flex; flex-direction: column; gap: 6px; }
.form-label { font-family: 'DM Mono', monospace; font-size: 0.72rem; letter-spacing: 0.06em; text-transform: uppercase; color: var(--text3); }
.form-input, .form-textarea {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 8px; padding: 12px 14px;
  color: var(--text); font-family: 'DM Sans', sans-serif; font-size: 0.9rem;
  transition: border-color 0.2s, background 0.2s; outline: none; resize: none;
}
.form-input:focus, .form-textarea:focus { border-color: var(--accent); background: var(--bg3); }
.form-textarea { min-height: 120px; }
.form-submit {
  font-family: 'DM Mono', monospace; font-size: 0.82rem;
  letter-spacing: 0.04em; background: var(--accent);
  color: #0d0d0f; border: none; padding: 14px 28px;
  border-radius: 8px; cursor: pointer; font-weight: 500;
  transition: transform 0.2s, box-shadow 0.2s; align-self: flex-start;
}
.form-submit:hover { transform: translateY(-2px); box-shadow: 0 6px 24px color-mix(in srgb, var(--accent) 40%, transparent); }

/* FOOTER */
footer {
  border-top: 1px solid var(--border);
  padding: 2rem clamp(1.5rem, 6vw, 5rem);
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 1rem; position: relative; z-index: 1;
}
.footer-left { font-family: 'DM Mono', monospace; font-size: 0.72rem; color: var(--text3); }
.footer-left strong { color: var(--accent); }
.footer-status { display: flex; align-items: center; gap: 8px; font-family: 'DM Mono', monospace; font-size: 0.72rem; color: var(--text2); }
.status-dot { width: 7px; height: 7px; border-radius: 50%; background: #28c840; box-shadow: 0 0 8px #28c840; animation: pulse 2s ease-in-out infinite; }

@keyframes fadeUp { from { opacity: 0; transform: translateY(20px); } to { opacity: 1; transform: translateY(0); } }
@keyframes blink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }
@keyframes pulse { 0%, 100% { opacity: 1; } 50% { opacity: 0.4; } }

@media (max-width: 768px) {
  .home-hero { grid-template-columns: 1fr; gap: 2.5rem; }
  .hero-right { display: none; }
  .contact-grid { grid-template-columns: 1fr; gap: 2.5rem; }
}
@media (max-width: 500px) {
  .nav-links a { display: none; }
  .nav-links a:last-child { display: block; }
  .theme-toggle { display: flex; }
  .nav-links { gap: 1rem; }
}