:root {
  --bg: #0a0a0f;
  --bg2: #111118;
  --bg3: #1a1a24;
  --card: #16161f;
  --border: #2a2a3a;
  --accent: #00e5c0;
  --accent2: #7c6ef7;
  --text: #e8e8f0;
  --text2: #9090a8;
  --text3: #5a5a72;
  --white: #ffffff;
  --shadow: 0 8px 40px rgba(0, 0, 0, 0.4);
  --radius: 16px;
  --radius-sm: 8px;
  --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}
[data-theme="light"] {
  --bg: #f5f5f0;
  --bg2: #ececea;
  --bg3: #e4e4e0;
  --card: #ffffff;
  --border: #ddddd6;
  --accent: #00a88a;
  --accent2: #5547d4;
  --text: #111118;
  --text2: #4a4a5a;
  --text3: #9090a8;
  --shadow: 0 8px 40px rgba(0, 0, 0, 0.1);
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}
html {
  scroll-behavior: smooth;
}
body {
  font-family: "DM Mono", monospace;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  transition:
    background var(--transition),
    color var(--transition);
  overflow-x: hidden;
}

/* NOISE TEXTURE */
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='0.03'/%3E%3C/svg%3E");
  pointer-events: none;
  z-index: 0;
  opacity: 0.4;
}

/* TOPBAR */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 16px 40px;
  background: rgba(10, 10, 15, 0.85);
  backdrop-filter: blur(20px);
  border-bottom: 1px solid var(--border);
  transition:
    background var(--transition),
    border-color var(--transition);
}
[data-theme="light"] .topbar {
  background: rgba(245, 245, 240, 0.88);
}
.topbar-logo {
  font-family: "Syne", sans-serif;
  font-size: 1rem;
  font-weight: 800;
  color: var(--accent);
  letter-spacing: -0.02em;
}
.topbar-controls {
  display: flex;
  align-items: center;
  gap: 12px;
}

/* TOGGLE BUTTONS */
.toggle-btn {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 16px;
  border: 1px solid var(--border);
  border-radius: 100px;
  background: var(--card);
  color: var(--text2);
  font-family: "DM Mono", monospace;
  font-size: 0.72rem;
  cursor: pointer;
  transition: all var(--transition);
}
.toggle-btn:hover {
  border-color: var(--accent);
  color: var(--accent);
}
.toggle-btn svg {
  width: 14px;
  height: 14px;
  flex-shrink: 0;
}

/* HERO */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  padding: 120px 40px 80px;
  position: relative;
  z-index: 1;
}
.hero-inner {
  max-width: 1100px;
  margin: 0 auto;
  width: 100%;
  display: grid;
  grid-template-columns: 1fr 320px;
  gap: 80px;
  align-items: center;
}
.hero-eyebrow {
  font-size: 0.72rem;
  color: var(--accent);
  letter-spacing: 0.18em;
  text-transform: uppercase;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 10px;
}
.hero-eyebrow::before {
  content: "";
  width: 32px;
  height: 1px;
  background: var(--accent);
}
.hero-name {
  font-family: "Syne", sans-serif;
  font-size: clamp(2.4rem, 5vw, 4rem);
  font-weight: 800;
  line-height: 1.05;
  color: var(--white);
  letter-spacing: -0.03em;
  margin-bottom: 10px;
}
[data-theme="light"] .hero-name {
  color: var(--text);
}
.hero-title {
  font-family: "Instrument Serif", serif;
  font-size: clamp(1.1rem, 2.2vw, 1.5rem);
  font-style: italic;
  color: var(--text2);
  margin-bottom: 28px;
}
.hero-desc {
  font-size: 0.82rem;
  color: var(--text2);
  line-height: 1.8;
  max-width: 520px;
  margin-bottom: 40px;
}
.hero-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}
.hero-link {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 10px 20px;
  border-radius: 100px;
  font-size: 0.75rem;
  text-decoration: none;
  transition: all var(--transition);
  border: 1px solid var(--border);
  color: var(--text2);
  background: var(--card);
}
.hero-link:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.hero-link.primary {
  background: var(--accent);
  color: #000;
  border-color: var(--accent);
}
.hero-link.primary:hover {
  background: transparent;
  color: var(--accent);
}
.hero-link svg {
  width: 14px;
  height: 14px;
}

/* AVATAR */
.avatar-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 20px;
  position: relative;
}
.avatar-ring {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), var(--accent2));
  padding: 3px;
  position: relative;
}
.avatar-inner {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: var(--bg3);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  font-family: "Syne", sans-serif;
  font-size: 4rem;
  font-weight: 800;
  color: var(--accent);
}
.avatar-inner img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}
.avatar-inner label {
  cursor: pointer;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-direction: column;
  gap: 4px;
}
.avatar-upload-hint {
  font-family: "DM Mono", monospace;
  font-size: 0.6rem;
  color: var(--text3);
  letter-spacing: 0.06em;
  text-align: center;
}
#avatarInput {
  display: none;
}
.avatar-badge {
  position: absolute;
  bottom: 8px;
  right: 8px;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  background: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px solid var(--bg);
  cursor: pointer;
  transition: transform var(--transition);
}
.avatar-badge:hover {
  transform: scale(1.1);
}
.avatar-badge svg {
  width: 18px;
  height: 18px;
  color: #000;
}
.avatar-status {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 0.7rem;
  color: var(--text2);
}
.status-dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #22c55e;
  box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
  animation: pulse 2s infinite;
}
@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

/* SECTION */
.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 80px 40px;
  position: relative;
  z-index: 1;
}
.section-label {
  font-size: 0.68rem;
  color: var(--accent);
  letter-spacing: 0.2em;
  text-transform: uppercase;
  margin-bottom: 40px;
  display: flex;
  align-items: center;
  gap: 12px;
}
.section-label::after {
  content: "";
  flex: 1;
  height: 1px;
  background: var(--border);
}

/* SKILLS */
.skills-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}
.skill-tag {
  padding: 8px 16px;
  border-radius: 100px;
  border: 1px solid var(--border);
  background: var(--card);
  font-size: 0.72rem;
  color: var(--text2);
  transition: all var(--transition);
}
.skill-tag:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}
.skill-tag.featured {
  border-color: var(--accent2);
  color: var(--accent2);
}

/* TIMELINE */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
}
.tl-item {
  display: grid;
  grid-template-columns: 180px 1fr;
  gap: 40px;
  padding: 36px 0;
  border-bottom: 1px solid var(--border);
  position: relative;
}
.tl-item:last-child {
  border-bottom: none;
}
.tl-date {
  font-size: 0.7rem;
  color: var(--text3);
  letter-spacing: 0.05em;
  padding-top: 4px;
  line-height: 1.6;
}
.tl-company {
  font-family: "Syne", sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 4px;
}
.tl-role {
  font-size: 0.75rem;
  color: var(--accent);
  letter-spacing: 0.06em;
  text-transform: uppercase;
  margin-bottom: 16px;
}
.tl-bullets {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 8px;
}
.tl-bullets li {
  font-size: 0.78rem;
  color: var(--text2);
  display: flex;
  gap: 10px;
  line-height: 1.6;
}
.tl-bullets li::before {
  content: "→";
  color: var(--accent);
  flex-shrink: 0;
  margin-top: 1px;
}

/* EDUCATION */
.edu-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.edu-card {
  padding: 28px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition:
    border-color var(--transition),
    transform var(--transition);
}
.edu-card:hover {
  border-color: var(--accent2);
  transform: translateY(-4px);
}
.edu-year {
  font-size: 0.68rem;
  color: var(--accent2);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 10px;
}
.edu-degree {
  font-family: "Syne", sans-serif;
  font-size: 0.95rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
  line-height: 1.3;
}
.edu-inst {
  font-size: 0.75rem;
  color: var(--text2);
}

/* LANGUAGES */
.lang-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.lang-card {
  padding: 24px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}
.lang-name {
  font-family: "Syne", sans-serif;
  font-size: 0.9rem;
  font-weight: 700;
  margin-bottom: 10px;
}
.lang-bar {
  height: 4px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
  margin-bottom: 8px;
}
.lang-fill {
  height: 100%;
  border-radius: 2px;
  background: linear-gradient(90deg, var(--accent), var(--accent2));
  transition: width 1s ease;
}
.lang-level {
  font-size: 0.68rem;
  color: var(--text3);
}

/* PROJECTS */
.projects-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.proj-card {
  padding: 28px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  transition: all var(--transition);
  text-decoration: none;
  display: block;
}
.proj-card:hover {
  border-color: var(--accent);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(0, 229, 192, 0.1);
}
.proj-icon {
  font-size: 1.5rem;
  margin-bottom: 14px;
}
.proj-name {
  font-family: "Syne", sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
  margin-bottom: 8px;
}
.proj-desc {
  font-size: 0.75rem;
  color: var(--text2);
  line-height: 1.7;
}
.proj-link {
  font-size: 0.68rem;
  color: var(--accent);
  letter-spacing: 0.06em;
  margin-top: 14px;
  display: flex;
  align-items: center;
  gap: 6px;
}

/* CONTACT */
.contact-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 16px;
}
.contact-item {
  display: flex;
  flex-direction: column;
  gap: 6px;
  padding: 20px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: all var(--transition);
}
.contact-item:hover {
  border-color: var(--accent);
  transform: translateY(-2px);
}
.contact-label {
  font-size: 0.62rem;
  color: var(--text3);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}
.contact-val {
  font-size: 0.78rem;
  color: var(--text2);
}

/* DOWNLOAD SECTION */
.download-section {
  max-width: 1100px;
  margin: 0 auto 80px;
  padding: 0 40px;
  position: relative;
  z-index: 1;
}
.download-card {
  padding: 60px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 40px;
  background: linear-gradient(135deg, var(--card), var(--bg3));
  position: relative;
  overflow: hidden;
}
.download-card::before {
  content: "";
  position: absolute;
  top: -50%;
  right: -10%;
  width: 400px;
  height: 400px;
  background: radial-gradient(
    circle,
    rgba(0, 229, 192, 0.06) 0%,
    transparent 70%
  );
  pointer-events: none;
}
.download-text h2 {
  font-family: "Syne", sans-serif;
  font-size: 1.6rem;
  font-weight: 800;
  color: var(--text);
  margin-bottom: 8px;
}
.download-text p {
  font-size: 0.8rem;
  color: var(--text2);
  max-width: 400px;
  line-height: 1.7;
}
.download-buttons {
  display: flex;
  flex-direction: column;
  gap: 12px;
  flex-shrink: 0;
}
.download-btn {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 16px 32px;
  background: var(--accent);
  color: #000;
  border-radius: 100px;
  text-decoration: none;
  font-family: "Syne", sans-serif;
  font-size: 0.85rem;
  font-weight: 700;
  white-space: nowrap;
  transition: all var(--transition);
  cursor: pointer;
  border: 2px solid var(--accent);
}
.download-btn:hover {
  background: transparent;
  color: var(--accent);
  box-shadow: 0 0 40px rgba(0, 229, 192, 0.2);
}
.download-btn.secondary {
  background: transparent;
  color: var(--accent2);
  border-color: var(--accent2);
}
.download-btn.secondary:hover {
  background: var(--accent2);
  color: #fff;
  box-shadow: 0 0 40px rgba(124, 110, 247, 0.2);
}
.download-btn svg {
  width: 18px;
  height: 18px;
}
.download-btn .btn-lang-flag {
  font-size: 1rem;
}

/* FOOTER */
footer {
  border-top: 1px solid var(--border);
  padding: 32px 40px;
  text-align: center;
  font-size: 0.7rem;
  color: var(--text3);
  position: relative;
  z-index: 1;
}

/* ANIMATIONS */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}
.hero-left {
  animation: fadeUp 0.7s ease forwards;
}
.hero-right {
  animation: fadeUp 0.7s 0.15s ease both;
}
.section-label {
  animation: fadeUp 0.5s ease both;
}

/* SCROLL REVEAL */
.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition:
    opacity 0.6s ease,
    transform 0.6s ease;
}
.reveal.visible {
  opacity: 1;
  transform: none;
}

/* RESPONSIVE */
@media (max-width: 900px) {
  .hero-inner {
    grid-template-columns: 1fr;
    gap: 50px;
  }
  .hero-right {
    order: -1;
    display: flex;
    align-items: center;
    justify-content: center;
  }
  .edu-grid,
  .lang-grid,
  .projects-grid {
    grid-template-columns: 1fr;
  }
  .tl-item {
    grid-template-columns: 1fr;
    gap: 10px;
  }
  .contact-grid {
    grid-template-columns: 1fr 1fr;
  }
  .download-card {
    flex-direction: column;
    text-align: center;
    padding: 40px 30px;
  }
  .download-buttons {
    width: 100%;
  }
  .download-btn {
    justify-content: center;
  }
  .topbar {
    padding: 14px 20px;
  }
  .hero {
    padding: 100px 20px 60px;
  }
  .section {
    padding: 60px 20px;
  }
  .download-section {
    padding: 0 20px;
  }
}
@media (max-width: 500px) {
  .topbar-controls {
    gap: 8px;
  }
  .toggle-btn span {
    display: none;
  }
  .contact-grid {
    grid-template-columns: 1fr;
  }
  .hero-links {
    gap: 8px;
  }
  .hero-link {
    padding: 8px 14px;
  }
}

/* NUGET PACKAGES */
.nuget-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 20px;
}
.nuget-card {
  padding: 28px;
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  text-decoration: none;
  display: block;
  transition: all var(--transition);
}
.nuget-card:hover {
  border-color: var(--accent2);
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(124, 110, 247, 0.1);
}
.nuget-header {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 16px;
}
.nuget-icon {
  font-size: 1.8rem;
}
.nuget-name {
  font-family: "Syne", sans-serif;
  font-size: 1rem;
  font-weight: 700;
  color: var(--text);
}
.nuget-version {
  font-size: 0.68rem;
  color: var(--accent2);
  letter-spacing: 0.06em;
}
.nuget-badge {
  margin-left: auto;
  padding: 4px 12px;
  border-radius: 100px;
  border: 1px solid var(--accent2);
  color: var(--accent2);
  font-size: 0.65rem;
  letter-spacing: 0.06em;
}
.nuget-desc {
  font-size: 0.75rem;
  color: var(--text2);
  line-height: 1.7;
  margin-bottom: 20px;
}
.nuget-stats {
  display: flex;
  gap: 24px;
  margin-bottom: 18px;
}
.nuget-stat {
  display: flex;
  flex-direction: column;
  gap: 2px;
}
.nuget-stat-value {
  font-family: "Syne", sans-serif;
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
}
.nuget-stat-label {
  font-size: 0.65rem;
  color: var(--text3);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}
.nuget-install {
  background: var(--bg);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  padding: 10px 14px;
}
.nuget-install code {
  font-family: "DM Mono", monospace;
  font-size: 0.7rem;
  color: var(--accent);
}
@media (max-width: 900px) {
  .nuget-grid {
    grid-template-columns: 1fr;
  }
}