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

:root {
  --bg: #0f1117;
  --surface: #1a1d27;
  --card: #21253a;
  --accent: #4f8ef7;
  --accent2: #7c3aed;
  --text: #e2e8f0;
  --muted: #8892a4;
  --border: #2d3348;
}

html {
  scroll-behavior: smooth;
}

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

/* NAV */
nav {
  position: fixed;
  top: 0;
  width: 100%;
  background: rgba(15, 17, 23, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  z-index: 100;
  padding: 0 2rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 60px;
}

nav .logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--accent);
  letter-spacing: 0.5px;
}

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

nav ul a {
  color: var(--muted);
  text-decoration: none;
  font-size: 0.9rem;
  transition: color 0.2s;
}

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

/* HERO */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 2rem 4rem;
  background: radial-gradient(ellipse at 50% 0%, rgba(79, 142, 247, 0.12) 0%, transparent 70%);
}

.hero-inner h1 {
  font-size: clamp(2.5rem, 6vw, 4.5rem);
  font-weight: 800;
  letter-spacing: -1px;
  background: linear-gradient(135deg, #fff 40%, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero-inner .title {
  font-size: 1.2rem;
  color: var(--accent);
  margin: 0.5rem 0 1.5rem;
  font-weight: 500;
}

.hero-inner .summary {
  max-width: 560px;
  margin: 0 auto 2rem;
  color: var(--muted);
  font-size: 1rem;
}

.hero-links {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

.btn {
  padding: 0.6rem 1.4rem;
  border-radius: 8px;
  font-size: 0.9rem;
  font-weight: 600;
  text-decoration: none;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

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

.btn-primary:hover {
  background: #3a7de8;
  transform: translateY(-1px);
}

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

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

.contact-chips {
  display: flex;
  gap: 0.75rem;
  justify-content: center;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.chip {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.3rem 0.9rem;
  font-size: 0.82rem;
  color: var(--muted);
  text-decoration: none;
  transition: border-color 0.2s, color 0.2s;
}

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

/* SECTIONS */
section {
  padding: 5rem 2rem;
  max-width: 900px;
  margin: 0 auto;
}

.section-label {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.5rem;
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  margin-bottom: 2.5rem;
  color: var(--text);
}

/* EXPERIENCE */
.timeline {
  display: flex;
  flex-direction: column;
  gap: 1.5rem;
}

.exp-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.5rem;
  transition: border-color 0.2s, transform 0.2s;
}

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

.exp-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 1rem;
}

.exp-role {
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text);
}

.exp-company {
  color: var(--accent);
  font-weight: 600;
}

.exp-meta {
  text-align: right;
}

.exp-date {
  font-size: 0.82rem;
  color: var(--muted);
  background: var(--card);
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  display: inline-block;
  margin-bottom: 0.25rem;
}

.exp-location {
  font-size: 0.8rem;
  color: var(--muted);
  display: block;
}

.exp-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.exp-card ul li {
  font-size: 0.9rem;
  color: var(--muted);
  padding-left: 1.2rem;
  position: relative;
}

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

/* SKILLS */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
  gap: 1rem;
}

.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem;
  transition: border-color 0.2s;
}

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

.skill-card h4 {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 1.5px;
  text-transform: uppercase;
  color: var(--accent);
  margin-bottom: 0.75rem;
}

.skill-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
}

.tag {
  background: var(--card);
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 0.2rem 0.6rem;
  font-size: 0.78rem;
  color: var(--text);
}

/* PROJECT */
.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.75rem;
  transition: border-color 0.2s, transform 0.2s;
}

.project-card:hover {
  border-color: var(--accent2);
  transform: translateY(-2px);
}

.project-card h3 {
  font-size: 1.1rem;
  font-weight: 700;
  margin-bottom: 0.5rem;
}

.project-card a {
  color: var(--accent);
  font-size: 0.85rem;
  text-decoration: none;
  display: inline-block;
  margin-bottom: 1rem;
}

.project-card a:hover {
  text-decoration: underline;
}

.project-card ul {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.4rem;
}

.project-card ul li {
  font-size: 0.9rem;
  color: var(--muted);
  padding-left: 1.2rem;
  position: relative;
}

.project-card ul li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent2);
}

.aws-badge {
  display: inline-block;
  margin-top: 1rem;
  background: rgba(124, 58, 237, 0.15);
  border: 1px solid var(--accent2);
  color: #a78bfa;
  border-radius: 999px;
  padding: 0.25rem 0.8rem;
  font-size: 0.78rem;
  font-weight: 600;
}

/* CERTIFICATIONS */
.certs-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1rem;
}

@media (max-width: 640px) {
  .certs-grid {
    grid-template-columns: 1fr;
  }
}

.cert-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  transition: border-color 0.2s;
}

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

.cert-card p {
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text);
}

/* EDUCATION */
.edu-list {
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.edu-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 1.25rem 1.5rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 0.5rem;
  transition: border-color 0.2s;
}

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

.edu-degree {
  font-weight: 700;
  font-size: 0.95rem;
}

.edu-school {
  font-size: 0.85rem;
  color: var(--muted);
  margin-top: 0.2rem;
}

.edu-year {
  font-size: 0.82rem;
  color: var(--muted);
  background: var(--card);
  padding: 0.2rem 0.7rem;
  border-radius: 999px;
  white-space: nowrap;
}

/* FOOTER */
footer {
  text-align: center;
  padding: 2rem;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.85rem;
}

/* HAMBURGER */
.hamburger {
  display: none;
  flex-direction: column;
  gap: 5px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 4px;
}

.hamburger span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--text);
  border-radius: 2px;
  transition: all 0.3s;
}

@media (max-width: 640px) {
  .hamburger { display: flex; }

  nav ul {
    display: none;
    position: absolute;
    top: 60px;
    left: 0;
    width: 100%;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    flex-direction: column;
    padding: 1rem 2rem;
    gap: 1rem;
  }

  nav ul.open { display: flex; }

  .exp-meta { text-align: left; }
}