/* ─── Reset & Base ─────────────────────────────────── */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --bg: #0f1117;
  --bg-alt: #161b27;
  --surface: #1e2535;
  --accent: #6c63ff;
  --accent-hover: #574fd6;
  --text: #e2e8f0;
  --text-muted: #8892a4;
  --border: #2a3347;
  --radius: 12px;
  --font: 'Segoe UI', system-ui, sans-serif;
}

html {
  scroll-behavior: smooth;
}

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

a {
  color: var(--accent);
  text-decoration: none;
}

/* ─── Navigation ───────────────────────────────────── */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(15, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0 2rem;
  height: 64px;
  z-index: 100;
}

.nav-logo {
  font-size: 1.4rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 1px;
}

.nav-links {
  list-style: none;
  display: flex;
  gap: 2rem;
}

.nav-links a {
  color: var(--text-muted);
  font-size: 0.95rem;
  transition: color 0.2s;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  color: var(--text);
  font-size: 1.5rem;
  cursor: pointer;
}

/* ─── Hero ─────────────────────────────────────────── */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 3rem;
  padding: 100px 10% 60px;
}

.hero-greeting {
  color: var(--accent);
  font-size: 1.1rem;
  letter-spacing: 2px;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}

.hero-name {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1rem;
}

.hero-tagline {
  color: var(--text-muted);
  font-size: 1.2rem;
  margin-bottom: 0.5rem;
}

.hero-location {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 2rem;
}

.hero-buttons {
  display: flex;
  gap: 1rem;
  flex-wrap: wrap;
}

.avatar {
  width: 220px;
  height: 220px;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--accent), #a78bfa);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 3.5rem;
  font-weight: 800;
  color: white;
  flex-shrink: 0;
  box-shadow: 0 0 60px rgba(108, 99, 255, 0.3);
}

/* ─── Buttons ──────────────────────────────────────── */
.btn {
  display: inline-block;
  padding: 0.75rem 1.75rem;
  border-radius: 8px;
  font-size: 0.95rem;
  font-weight: 600;
  cursor: pointer;
  transition: all 0.2s;
  border: none;
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-primary:hover {
  background: var(--accent-hover);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(108, 99, 255, 0.35);
}

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

.btn-secondary:hover {
  border-color: var(--accent);
  color: var(--accent);
  transform: translateY(-2px);
}

/* ─── Sections ─────────────────────────────────────── */
.section {
  padding: 6rem 0;
}

.section-alt {
  background-color: var(--bg-alt);
}

.container {
  max-width: 1100px;
  margin: 0 auto;
  padding: 0 2rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 3rem;
  position: relative;
  display: inline-block;
}

.section-title::after {
  content: '';
  position: absolute;
  bottom: -8px;
  left: 0;
  width: 48px;
  height: 4px;
  background: var(--accent);
  border-radius: 2px;
}

/* ─── About ────────────────────────────────────────── */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 4rem;
  align-items: center;
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-size: 1.05rem;
}

.about-details {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  margin-top: 1.5rem;
  padding-top: 1.5rem;
  border-top: 1px solid var(--border);
}

.detail-item {
  display: flex;
  gap: 1rem;
  font-size: 0.95rem;
}

.detail-label {
  color: var(--text-muted);
  min-width: 130px;
}

.about-stats {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.stat {
  display: flex;
  align-items: baseline;
  gap: 1rem;
  padding: 1.25rem 1.5rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

.stat-number {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
}

.stat-label {
  color: var(--text-muted);
  font-size: 0.95rem;
}

/* ─── Skills ───────────────────────────────────────── */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.skill-category {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: border-color 0.2s, transform 0.2s;
}

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

.skill-category h3 {
  font-size: 1rem;
  text-transform: uppercase;
  letter-spacing: 1px;
  color: var(--accent);
  margin-bottom: 1rem;
}

.skill-category ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.skill-category li {
  color: var(--text-muted);
  font-size: 0.95rem;
  padding-left: 1rem;
  position: relative;
}

.skill-category li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ─── Timeline (Experience) ────────────────────────── */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 0;
  position: relative;
  padding-left: 2rem;
}

.timeline::before {
  content: '';
  position: absolute;
  left: 7px;
  top: 8px;
  bottom: 8px;
  width: 2px;
  background: var(--border);
}

.timeline-item {
  position: relative;
  padding-bottom: 1.5rem;
}

.timeline-dot {
  position: absolute;
  left: -2rem;
  top: 8px;
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--accent);
  border: 3px solid var(--bg-alt);
  box-shadow: 0 0 0 2px var(--accent);
}

.timeline-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  transition: border-color 0.2s;
}

.timeline-card:hover {
  border-color: var(--accent);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 1rem;
  flex-wrap: wrap;
}

.timeline-header h3 {
  font-size: 1.05rem;
  margin-bottom: 0.2rem;
}

.timeline-company {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.timeline-date {
  color: var(--accent);
  font-size: 0.85rem;
  font-weight: 500;
  white-space: nowrap;
  flex-shrink: 0;
}

.badge {
  display: inline-block;
  margin-top: 0.6rem;
  padding: 0.2rem 0.65rem;
  border-radius: 20px;
  font-size: 0.75rem;
  font-weight: 600;
}

.badge-current {
  background: rgba(108, 99, 255, 0.15);
  color: var(--accent);
  border: 1px solid rgba(108, 99, 255, 0.3);
}

/* ─── Education ────────────────────────────────────── */
.edu-grid {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.edu-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1.5rem;
  transition: border-color 0.2s;
}

.edu-card:hover {
  border-color: var(--accent);
}

.edu-icon {
  font-size: 2rem;
  flex-shrink: 0;
}

.edu-info {
  flex: 1;
}

.edu-info h3 {
  font-size: 1.05rem;
  margin-bottom: 0.2rem;
}

.edu-school {
  color: var(--text-muted);
  font-size: 0.9rem;
}

.edu-level {
  color: var(--accent);
  font-size: 0.8rem;
  margin-top: 0.2rem;
}

/* ─── Contact email ────────────────────────────────── */
.contact-email {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  font-size: 1.05rem;
  margin-bottom: 2rem;
  color: var(--text-muted);
}

.contact-email a {
  color: var(--accent);
}

.contact-email a:hover {
  text-decoration: underline;
}

/* ─── Projects ─────────────────────────────────────── */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem;
  transition: border-color 0.2s, transform 0.2s;
}

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

.project-icon {
  font-size: 2.5rem;
  margin-bottom: 1rem;
}

.project-card h3 {
  font-size: 1.15rem;
  margin-bottom: 0.75rem;
}

.project-card p {
  color: var(--text-muted);
  font-size: 0.95rem;
  margin-bottom: 1.25rem;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.project-tags span {
  background: rgba(108, 99, 255, 0.15);
  color: var(--accent);
  border: 1px solid rgba(108, 99, 255, 0.3);
  padding: 0.25rem 0.75rem;
  border-radius: 20px;
  font-size: 0.8rem;
  font-weight: 500;
}

/* ─── Contact ──────────────────────────────────────── */
.contact-wrapper {
  max-width: 600px;
}

.contact-intro {
  color: var(--text-muted);
  margin-bottom: 2rem;
  font-size: 1.05rem;
}

.contact-form {
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.form-group label {
  font-size: 0.9rem;
  color: var(--text-muted);
  font-weight: 500;
}

.form-group input,
.form-group textarea {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 0.75rem 1rem;
  color: var(--text);
  font-family: var(--font);
  font-size: 0.95rem;
  transition: border-color 0.2s;
  outline: none;
  resize: vertical;
}

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

.form-status {
  font-size: 0.9rem;
  color: var(--accent);
  min-height: 1.2rem;
}

/* ─── Footer ───────────────────────────────────────── */
footer {
  text-align: center;
  padding: 2rem;
  color: var(--text-muted);
  font-size: 0.9rem;
  border-top: 1px solid var(--border);
}

/* ─── Responsive ───────────────────────────────────── */
@media (max-width: 900px) {
  .hero {
    flex-direction: column-reverse;
    text-align: center;
    padding-top: 120px;
  }

  .hero-buttons {
    justify-content: center;
  }

  .about-grid {
    grid-template-columns: 1fr;
    gap: 2rem;
  }

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

  .timeline-header {
    flex-direction: column;
    gap: 0.4rem;
  }

  .edu-card {
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
  }
}

@media (max-width: 600px) {
  .nav-links {
    display: none;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    width: 100%;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 1rem 2rem;
    gap: 1rem;
  }

  .nav-links.open {
    display: flex;
  }

  .nav-toggle {
    display: block;
  }

  .avatar {
    width: 140px;
    height: 140px;
    font-size: 2.2rem;
  }
}