:root {
  --bg: #0d0d0d;
  --bg-card: #141414;
  --bg-card-hover: #1a1a1a;
  --border: #2a2a2a;
  --accent: #3b82f6;
  --accent-dim: rgba(59, 130, 246, 0.12);
  --text: #e8e8e8;
  --text-muted: #888;
  --text-faint: #444;
  --font-sans: 'DM Sans', sans-serif;
  --font-mono: 'DM Mono', monospace;
  --font-serif: 'Fraunces', serif;
}

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

html { scroll-behavior: smooth; }

body {
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.7;
  overflow-x: hidden;
}

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

#loading-screen {
  position: fixed;
  inset: 0;
  background: #0d0d0d;
  z-index: 9999;
  display: flex;
  align-items: center;
  justify-content: center;
  transition: opacity 0.6s ease;
}

.loader-inner { text-align: center; }

.loader-name {
  font-family: var(--font-mono);
  font-size: 48px;
  font-weight: 500;
  color: var(--accent);
  letter-spacing: 6px;
  display: block;
  margin-bottom: 24px;
}
.loader-icon {
    font-size: 32px;
    color: var(--text-muted);
    margin-bottom: 20px;
    animation: pulse 1.5s infinite;
}
.loader-bar {
  width: 200px;
  height: 2px;
  background: var(--border);
  border-radius: 2px;
  overflow: hidden;
  margin: 0 auto;
}

.loader-fill {
  height: 100%;
  width: 0%;
  background: var(--accent);
  animation: load 1.8s ease forwards;
}

@keyframes load { to { width: 100%; } }

#navbar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  z-index: 1000;
  padding: 0 60px;
  height: 64px;
  display: flex;
  align-items: center;
  background: rgba(13, 13, 13, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-inner {
  width: 100%;
  max-width: 1100px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.nav-logo {
  font-family: var(--font-mono);
  font-size: 18px;
  font-weight: 500;
  color: var(--text);
  letter-spacing: 1px;
}

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

.nav-links {
  display: flex;
  gap: 36px;
}

.nav-link {
  font-size: 14px;
  color: var(--text-muted);
  transition: color 0.2s;
  position: relative;
}

.nav-link::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--accent);
  transition: width 0.2s;
}

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

.nav-link.active::after,
.nav-link:hover::after { width: 100%; }

.nav-cv {
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--accent);
  border: 1px solid var(--accent);
  padding: 6px 16px;
  border-radius: 6px;
  transition: background 0.2s, color 0.2s;
  display: flex;
  align-items: center;
  gap: 6px;
}

.nav-cv:hover { background: var(--accent); color: #fff; }

section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 100px 60px;
}

.section-label {
  font-family: var(--font-mono);
  font-size: 12px;
  color: var(--accent);
  letter-spacing: 3px;
  text-transform: uppercase;
  margin-bottom: 16px;
}

section h2 {
  font-family: var(--font-serif);
  font-size: 42px;
  font-weight: 300;
  color: var(--text);
  line-height: 1.2;
  margin-bottom: 48px;
}

section h2 em { font-style: italic; color: var(--accent); }

.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 60px;
  padding-top: 120px;
}

.hero-left { flex: 1; max-width: 580px; }

.hero-tag {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 13px;
  color: var(--text-muted);
  background: var(--bg-card);
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 20px;
  margin-bottom: 28px;
}

.dot {
  width: 7px;
  height: 7px;
  background: #22c55e;
  border-radius: 50%;
  display: inline-block;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; }
  50% { opacity: 0.4; }
}

.hero-name {
  font-family: var(--font-serif);
  font-size: 62px;
  font-weight: 300;
  line-height: 1.1;
  margin-bottom: 16px;
  color: var(--text);
}

.hero-name em { font-style: italic; color: var(--accent); }

.hero-role {
  font-family: var(--font-mono);
  font-size: 18px;
  color: var(--text-muted);
  margin-bottom: 20px;
  min-height: 28px;
}

.cursor { animation: blink 0.7s infinite; color: var(--accent); }

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

.hero-desc {
  font-size: 16px;
  color: var(--text-muted);
  max-width: 480px;
  margin-bottom: 36px;
  line-height: 1.8;
}

.hero-btns {
  display: flex;
  gap: 16px;
  margin-bottom: 40px;
  flex-wrap: wrap;
}

.btn-primary {
  background: var(--accent);
  color: #fff;
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 14px;
  font-weight: 500;
  transition: opacity 0.2s;
}

.btn-primary:hover { opacity: 0.85; }

.btn-secondary {
  background: transparent;
  color: var(--text);
  padding: 12px 28px;
  border-radius: 8px;
  font-size: 14px;
  border: 1px solid var(--border);
  transition: border-color 0.2s, color 0.2s;
}

.btn-secondary:hover { border-color: var(--accent); color: var(--accent); }

.hero-socials { display: flex; gap: 20px; }

.hero-socials a {
  color: var(--text-faint);
  font-size: 20px;
  transition: color 0.2s;
}

.hero-socials a:hover { color: var(--accent); }
.hero-socials a[aria-label="GitHub"]:hover { color: #ffffff !important; }
.hero-socials a[aria-label="LinkedIn"]:hover { color: #0A66C2 !important; }
.hero-socials a[aria-label="Discord"]:hover { color: #5865F2 !important; }
.hero-socials a[aria-label="Instagram"]:hover { color: #E1306C !important; }

.hero-right { flex-shrink: 0; }

.hero-img-wrap {
  width: 320px;
  height: 380px;
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid var(--border);
}

.hero-img-wrap img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: top;
  filter: grayscale(20%);
  transition: filter 0.3s;
}

.hero-img-wrap:hover img { filter: grayscale(0%); }

.about { border-top: 1px solid var(--border); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: start;
}

.about-text h2 { font-size: 36px; margin-bottom: 24px; }

.about-text p { color: var(--text-muted); margin-bottom: 16px; font-size: 15px; }

.about-details {
  margin-top: 32px;
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.detail-item {
  display: flex;
  align-items: center;
  gap: 12px;
  font-size: 14px;
  color: var(--text-muted);
}

.detail-item i { color: var(--accent); width: 16px; text-align: center; }

.about-skills h3 {
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 24px;
}

.skill-group { margin-bottom: 24px; }

.skill-label {
  font-size: 12px;
  color: var(--text-faint);
  text-transform: uppercase;
  letter-spacing: 1px;
  margin-bottom: 10px;
  font-family: var(--font-mono);
}

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

.skill-tags span {
  font-size: 13px;
  padding: 4px 12px;
  border-radius: 4px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  color: var(--text-muted);
  font-family: var(--font-mono);
  transition: border-color 0.2s, color 0.2s;
}

.skill-tags span:hover { border-color: var(--accent); color: var(--accent); }

.projects { border-top: 1px solid var(--border); }

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 24px;
}

.project-card {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
  transition: border-color 0.2s, transform 0.2s;
}

.project-card:hover { border-color: var(--accent); transform: translateY(-4px); }

.project-banner {
  height: 140px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 28px;
  font-size: 48px;
}

.chat-banner { background: linear-gradient(135deg, #1e3a5f, #1e40af); color: #93c5fd; }
.game-banner { background: linear-gradient(135deg, #0f0f1a, #1a1a3e); color: #818cf8; }

.project-num {
  font-family: var(--font-mono);
  font-size: 13px;
  opacity: 0.5;
  align-self: flex-start;
  padding-top: 20px;
}

.project-body { padding: 24px; }

.project-body h3 { font-size: 18px; font-weight: 500; margin-bottom: 10px; color: var(--text); }

.project-body p { font-size: 14px; color: var(--text-muted); margin-bottom: 20px; line-height: 1.7; }

.project-tags { display: flex; flex-wrap: wrap; gap: 6px; margin-bottom: 20px; }

.project-tags span {
  font-size: 11px;
  font-family: var(--font-mono);
  padding: 3px 10px;
  border-radius: 4px;
  background: var(--accent-dim);
  color: var(--accent);
  border: 1px solid rgba(59,130,246,0.2);
}

.project-links a {
  font-size: 13px;
  font-family: var(--font-mono);
  color: var(--text-muted);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  border: 1px solid var(--border);
  padding: 6px 14px;
  border-radius: 6px;
  transition: color 0.2s, border-color 0.2s;
}

.project-links a:hover { color: var(--accent); border-color: var(--accent); }

.contact {
  border-top: 1px solid var(--border);
  text-align: center;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.contact-sub {
  color: var(--text-muted);
  font-size: 16px;
  max-width: 480px;
  margin-bottom: 32px;
}

.contact-email {
  font-family: var(--font-mono);
  font-size: 20px;
  color: var(--accent);
  border-bottom: 1px solid var(--accent);
  padding-bottom: 2px;
  margin-bottom: 32px;
  transition: opacity 0.2s;
}

.contact-email:hover { opacity: 0.7; }

.contact-details {
  display: flex;
  gap: 32px;
  margin-bottom: 40px;
  flex-wrap: wrap;
  justify-content: center;
}

.contact-item {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 14px;
  color: var(--text-muted);
}

.contact-item i { color: var(--accent); }
.contact-item a { color: var(--text-muted); transition: color 0.2s; }
.contact-item a:hover { color: var(--accent); }

.contact-socials { display: flex; gap: 20px; }

.contact-socials a {
  width: 44px;
  height: 44px;
  border: 1px solid var(--border);
  border-radius: 8px;
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-muted);
  font-size: 18px;
  transition: border-color 0.2s, color 0.2s;
}

.contact-socials a[aria-label="GitHub"]:hover { color: #ffffff !important; border-color: #ffffff !important; }
.contact-socials a[aria-label="LinkedIn"]:hover { color: #0A66C2 !important; border-color: #0A66C2 !important; }
.contact-socials a[aria-label="Instagram"]:hover { color: #E1306C !important; border-color: #E1306C !important; }
.contact-socials a[aria-label="WhatsApp"]:hover { color: #25D366 !important; border-color: #25D366 !important; }

footer {
  border-top: 1px solid var(--border);
  text-align: center;
  padding: 24px;
  font-size: 13px;
  color: var(--text-faint);
  font-family: var(--font-mono);
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

#back-to-top {
  position: fixed;
  bottom: 32px;
  right: 32px;
  width: 44px;
  height: 44px;
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 8px;
  color: var(--text-muted);
  font-size: 16px;
  display: none;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  z-index: 999;
  transition: border-color 0.2s, color 0.2s;
}

#back-to-top:hover { border-color: var(--accent); color: var(--accent); }

@media (max-width: 900px) {
  section { padding: 80px 32px; }
  #navbar { padding: 0 32px; }

  .hero {
    flex-direction: column-reverse;
    text-align: center;
    padding-top: 100px;
    min-height: auto;
    gap: 40px;
  }

  .hero-name { font-size: 42px; }
  .hero-desc { margin: 0 auto 36px; }
  .hero-btns { justify-content: center; }
  .hero-socials { justify-content: center; }
  .hero-img-wrap { width: 220px; height: 260px; }
  .about-grid { grid-template-columns: 1fr; gap: 48px; }
  .about-text h2 { font-size: 28px; }
  .nav-links { display: none; }
  .nav-cv { font-size: 12px; padding: 5px 12px; }
}

@media (max-width: 600px) {
  section { padding: 60px 20px; }
  #navbar { padding: 0 20px; }
  .hero-name { font-size: 34px; }
  section h2 { font-size: 30px; }
  .contact-details { flex-direction: column; gap: 16px; }
}