/* ===== RESET & BASE ===== */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

:root {
  --accent: #ffffff;
  --accent-dim: rgba(255, 255, 255, 0.06);
  --accent-glow: rgba(255, 255, 255, 0.1);
  --bg: #0f0f0f;
  --bg-card: #1a1a1a;
  --bg-nav: rgba(15, 15, 15, 0.96);
  --border: #2e2e2e;
  --text: #e8e8e8;
  --text-muted: #888888;
  --white: #ffffff;
}

body {
  font-family: 'Inter', sans-serif;
  background-color: var(--bg);
  color: var(--text);
  line-height: 1.6;
}

a {
  text-decoration: none;
  color: inherit;
}

/* ===== NAVBAR ===== */
.navbar {
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 20px 60px;
  position: fixed;
  top: 0;
  width: 100%;
  background-color: var(--bg-nav);
  backdrop-filter: blur(16px);
  z-index: 100;
  border-bottom: 1px solid var(--border);
  transition: box-shadow 0.3s;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  font-size: 1.2rem;
  font-weight: 700;
  color: var(--white);
  letter-spacing: -0.01em;
}

.nav-avatar {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border);
}

.nav-avatar-placeholder {
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: #2e2e2e;
  border: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  font-weight: 700;
  color: var(--text-muted);
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 32px;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.25s;
  position: relative;
  padding-bottom: 3px;
  letter-spacing: 0.01em;
}

.nav-links a::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: var(--white);
  transition: width 0.25s;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--white);
}

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

/* ===== HERO ===== */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 120px 60px 60px;
  position: relative;
  overflow: hidden;
}

.hero-text {
  max-width: 580px;
  z-index: 1;
}

.greeting {
  color: var(--text-muted);
  font-size: 1rem;
  font-weight: 500;
  margin-bottom: 16px;
  min-height: 1.6em;
  letter-spacing: 0.02em;
}

.typed-text {
  color: var(--white);
}

.cursor {
  color: var(--text-muted);
  animation: blink 0.9s infinite;
  font-weight: 300;
}

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

.name {
  font-size: 4rem;
  font-weight: 900;
  color: var(--white);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.tagline {
  font-size: 1.5rem;
  font-weight: 400;
  color: var(--text-muted);
  margin: 16px 0 24px;
  letter-spacing: -0.01em;
}

.description {
  max-width: 520px;
  color: var(--text-muted);
  font-size: 1rem;
  margin-bottom: 40px;
  line-height: 1.75;
}

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

/* ===== HERO IMAGE ===== */
.hero-image {
  position: relative;
  flex-shrink: 0;
  z-index: 1;
}

.hero-avatar {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  object-fit: cover;
  border: 1px solid var(--border);
  position: relative;
  z-index: 2;
}

.hero-avatar-placeholder {
  width: 300px;
  height: 300px;
  border-radius: 50%;
  background: var(--bg-card);
  border: 1px solid var(--border);
  position: relative;
  z-index: 2;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 5rem;
  color: var(--text-muted);
}

.image-glow {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 360px;
  height: 360px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(255,255,255,0.04) 0%, transparent 70%);
  z-index: 1;
}

/* ===== BUTTONS ===== */
.btn {
  display: inline-block;
  padding: 11px 24px;
  border-radius: 7px;
  font-weight: 600;
  font-size: 0.9rem;
  transition: all 0.25s;
  cursor: pointer;
  border: 1px solid transparent;
  letter-spacing: 0.01em;
}

.btn-primary {
  background-color: var(--white);
  color: #0f0f0f;
  border-color: var(--white);
}

.btn-primary:hover {
  background-color: #e8e8e8;
  transform: translateY(-1px);
}

.btn-secondary {
  border: 1px solid var(--border);
  color: var(--text);
  background: transparent;
}

.btn-secondary:hover {
  border-color: var(--text);
  color: var(--white);
  transform: translateY(-1px);
}

.btn-outline {
  border: 1px solid var(--border);
  color: var(--text-muted);
  background: transparent;
}

.btn-outline:hover {
  border-color: var(--text-muted);
  color: var(--text);
  transform: translateY(-1px);
}

/* ===== SECTIONS ===== */
section {
  padding: 90px 60px;
}

.section-title {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--text-muted);
  margin-bottom: 48px;
  position: relative;
  display: block;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

/* ===== ABOUT ===== */
.about-content {
  display: flex;
  gap: 80px;
  align-items: flex-start;
}

.about-text {
  flex: 1;
}

.about-text p {
  color: var(--text-muted);
  font-size: 1.05rem;
  line-height: 1.8;
}

.about-stats {
  display: flex;
  gap: 48px;
  margin-top: 48px;
  padding-top: 40px;
  border-top: 1px solid var(--border);
}

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

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

.stat-label {
  font-size: 0.8rem;
  color: var(--text-muted);
  margin-top: 6px;
  letter-spacing: 0.02em;
}

.about-image-wrap {
  flex-shrink: 0;
}

.about-photo {
  width: 240px;
  height: 240px;
  object-fit: cover;
  border-radius: 12px;
  border: 1px solid var(--border);
}

.about-photo-placeholder {
  width: 240px;
  height: 240px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: var(--bg-card);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 4rem;
  color: var(--text-muted);
}

/* ===== PROJECTS ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 1px;
  border: 1px solid var(--border);
  border-radius: 12px;
  overflow: hidden;
}

.project-card {
  background: var(--bg-card);
  padding: 36px;
  transition: background 0.25s;
  position: relative;
}

.project-card:hover {
  background: #202020;
}

.project-icon {
  font-size: 1.5rem;
  margin-bottom: 16px;
  filter: grayscale(0.3);
}

.project-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--white);
  margin-bottom: 10px;
  letter-spacing: -0.01em;
}

.project-card p {
  color: var(--text-muted);
  font-size: 0.92rem;
  margin-bottom: 24px;
  line-height: 1.7;
}

.tech-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
  margin-bottom: 24px;
}

.tech-tags span {
  background: #252525;
  color: var(--text-muted);
  padding: 3px 10px;
  border-radius: 4px;
  font-size: 0.78rem;
  font-weight: 500;
  border: 1px solid var(--border);
  font-family: 'SF Mono', 'Fira Code', monospace;
}

.project-links {
  display: flex;
  gap: 18px;
}

.project-links a {
  color: var(--text-muted);
  font-size: 0.88rem;
  font-weight: 500;
  transition: color 0.25s;
}

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

/* ===== SKILLS ===== */
.skills-categories {
  display: flex;
  flex-direction: column;
  gap: 36px;
}

.skill-category {
  display: flex;
  flex-direction: column;
  gap: 12px;
}

.category-label {
  font-size: 0.72rem;
  font-weight: 700;
  color: var(--text-muted);
  text-transform: uppercase;
  letter-spacing: 0.12em;
}

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

.skill-item {
  background: var(--bg-card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 8px 18px;
  font-size: 0.88rem;
  color: var(--text-muted);
  transition: border-color 0.25s, color 0.25s;
  cursor: default;
  font-weight: 500;
}

.skill-item:hover {
  border-color: #555;
  color: var(--white);
}

/* ===== CONTACT ===== */
.contact-sub {
  color: var(--text-muted);
  margin-bottom: 32px;
  font-size: 1rem;
  max-width: 480px;
  line-height: 1.7;
}

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

/* ===== FOOTER ===== */
footer {
  text-align: center;
  padding: 28px;
  color: #444;
  border-top: 1px solid var(--border);
  font-size: 0.85rem;
  letter-spacing: 0.01em;
}

/* ===== FADE SECTIONS ===== */
.fade-section {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

/* ===== RESPONSIVE ===== */
@media (max-width: 900px) {
  .navbar { padding: 16px 24px; }

  .hero {
    flex-direction: column-reverse;
    padding: 120px 24px 60px;
    text-align: center;
    gap: 40px;
  }

  .hero-text { max-width: 100%; }

  .hero-avatar,
  .hero-avatar-placeholder {
    width: 200px;
    height: 200px;
    font-size: 3.5rem;
  }

  .description { max-width: 100%; }
  .hero-buttons { justify-content: center; }
  .about-content { flex-direction: column; align-items: center; }
  .about-photo, .about-photo-placeholder { width: 200px; height: 200px; }
  .about-stats { justify-content: center; }
  .projects-grid { grid-template-columns: 1fr; }

  section { padding: 70px 24px; }
}