@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=JetBrains+Mono:wght@400;500&display=swap');

html {
  scroll-behavior: smooth;
}

:root {
  --bg-color: #050505;
  --surface-color: #0f0f0f;
  --surface-hover: #1a1a1a;
  --text-primary: #ffffff;
  --text-secondary: #a0a0a0;
  --border-color: #222222;
  --accent-color: #ffffff;
  --font-sans: 'Inter', -apple-system, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
  --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
  background-color: var(--bg-color);
  color: var(--text-primary);
  font-family: var(--font-sans);
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
}

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

a:hover {
  color: var(--text-secondary);
}

ul {
  list-style: none;
}

/* Grid Layout container */
.container {
  max-width: 1400px;
  margin: 0 auto;
  display: grid;
  grid-template-columns: 1fr;
  min-height: 100vh;
  border-left: 1px solid var(--border-color);
  border-right: 1px solid var(--border-color);
}

@media (min-width: 1024px) {
  .container {
    grid-template-columns: 350px 1fr;
  }
}

/* Sidebar (Sticky) */
.sidebar {
  border-right: 1px solid var(--border-color);
  border-bottom: 1px solid var(--border-color);
  padding: 3rem 2rem;
  display: flex;
  flex-direction: column;
  position: relative;
}

@media (min-width: 1024px) {
  .sidebar {
    position: sticky;
    top: 0;
    height: 100vh;
    border-bottom: none;
  }
}

.brand {
  font-size: 1.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 0.5rem;
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.brand svg {
  width: 24px;
  height: 24px;
}

.role {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 3rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.nav-menu {
  margin-bottom: auto;
}

.nav-menu li {
  margin-bottom: 1rem;
}

.nav-menu a {
  font-size: 1.1rem;
  font-weight: 500;
  color: var(--text-secondary);
  display: inline-block;
}

.nav-menu a:hover, .nav-menu a.active {
  color: var(--text-primary);
  transform: translateX(5px);
}

.social-links {
  display: flex;
  gap: 1.5rem;
  margin-top: 3rem;
}

.social-links a {
  color: var(--text-secondary);
}

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

/* Main Content */
.main-content {
  display: flex;
  flex-direction: column;
}

/* Sections */
.section {
  padding: 5rem 3rem;
  border-bottom: 1px solid var(--border-color);
}

.section:last-child {
  border-bottom: none;
}

.section-header {
  font-size: 2.5rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  margin-bottom: 3rem;
  line-height: 1.1;
  text-transform: uppercase;
}

/* Typography styles */
.lead-text {
  font-size: 1.5rem;
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-weight: 300;
  max-width: 800px;
}

.btn-custom {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.5rem;
  border: 1px solid var(--border-color);
  background: transparent;
  color: var(--text-primary);
  font-family: var(--font-mono);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  cursor: pointer;
}

.btn-custom:hover {
  background: var(--text-primary);
  color: var(--bg-color);
}

.btn-primary {
  background: var(--text-primary);
  color: var(--bg-color);
}

.btn-primary:hover {
  background: transparent;
  color: var(--text-primary);
}

/* Grid System for Cards */
.grid-2 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .grid-2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.grid-3 {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
}

@media (min-width: 768px) {
  .grid-3 {
    grid-template-columns: repeat(2, 1fr);
  }
}
@media (min-width: 1200px) {
  .grid-3 {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* Cards */
.card {
  background: var(--surface-color);
  border: 1px solid var(--border-color);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  transition: var(--transition);
  position: relative;
  overflow: hidden;
}

.card:hover {
  background: var(--surface-hover);
  border-color: #444;
}

.card-title {
  font-size: 1.5rem;
  font-weight: 600;
  margin-bottom: 0.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.card-subtitle {
  font-family: var(--font-mono);
  font-size: 0.8rem;
  color: var(--text-secondary);
  margin-bottom: 1.5rem;
  text-transform: uppercase;
}

.card-desc {
  color: var(--text-secondary);
  margin-bottom: 2rem;
  font-size: 0.95rem;
}

.tech-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: auto;
}

.tech-list li {
  font-family: var(--font-mono);
  font-size: 0.75rem;
  padding: 0.25rem 0.5rem;
  border: 1px solid var(--border-color);
  color: var(--text-secondary);
}

/* Timeline */
.timeline-item {
  border-left: 1px solid var(--border-color);
  padding-left: 2rem;
  position: relative;
  margin-bottom: 3rem;
}

.timeline-item::before {
  content: '';
  position: absolute;
  left: -5px;
  top: 0;
  width: 9px;
  height: 9px;
  background: var(--text-primary);
  border-radius: 50%;
}

.timeline-date {
  font-family: var(--font-mono);
  font-size: 0.85rem;
  color: var(--text-secondary);
  margin-bottom: 0.5rem;
}

/* Form */
.form-group {
  margin-bottom: 1.5rem;
}

.form-control {
  width: 100%;
  background: transparent;
  border: none;
  border-bottom: 1px solid var(--border-color);
  padding: 1rem 0;
  color: var(--text-primary);
  font-family: var(--font-sans);
  font-size: 1rem;
  transition: var(--transition);
}

.form-control:focus {
  outline: none;
  border-bottom-color: var(--text-primary);
}

.form-control::placeholder {
  color: #555;
}