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

:root {
  --bg:        #04111f;
  --surface:   #071e38;
  --surface2:  #0a2744;
  --accent:    #4fa3ff;
  --accent2:   #a8d4ff;
  --text:      #f0f6ff;
  --muted:     #7da8cc;
  --border:    #0f3460;
  --radius:    10px;
}

html { scroll-behavior: smooth; }

body {
  font-family: 'Inter', 'Segoe UI', system-ui, sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.7;
  font-size: 16px;
}

a { color: var(--accent); text-decoration: none; }
a:hover { color: var(--accent2); }

/* ===== SCROLLBAR ===== */
::-webkit-scrollbar { width: 6px; }
::-webkit-scrollbar-track { background: var(--bg); }
::-webkit-scrollbar-thumb { background: var(--accent); border-radius: 3px; }

/* ===== NAV ===== */
nav {
  position: fixed;
  top: 0; left: 0; right: 0;
  z-index: 100;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 1rem 2rem;
  background: rgba(10, 14, 23, 0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
}

.nav-logo {
  font-size: 1.1rem;
  font-weight: 700;
  color: var(--accent);
  letter-spacing: 0.05em;
}

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

.nav-links a {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 500;
  transition: color 0.2s;
}
.nav-links a:hover { color: var(--accent); }

/* ===== HERO ===== */
#hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 6rem 1.5rem 3rem;
  position: relative;
  overflow: hidden;
}

#hero::before {
  content: '';
  position: absolute;
  inset: 0;
  background:
    radial-gradient(ellipse 60% 50% at 50% 0%, rgba(79,163,255,0.18) 0%, transparent 70%),
    radial-gradient(ellipse 40% 40% at 80% 80%, rgba(168,212,255,0.10) 0%, transparent 60%);
  pointer-events: none;
}

.hero-inner { position: relative; max-width: 700px; }

.hero-tag {
  display: inline-block;
  padding: 0.3rem 0.9rem;
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 99px;
  font-size: 0.8rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 1.5rem;
}

#hero h1 {
  font-size: clamp(2.2rem, 6vw, 3.8rem);
  font-weight: 800;
  line-height: 1.1;
  margin-bottom: 1rem;
  letter-spacing: -0.02em;
}

#hero h1 span { color: var(--accent); }

.hero-subtitle {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 0.5rem;
}

.hero-location {
  color: var(--muted);
  font-size: 0.9rem;
  margin-bottom: 2rem;
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.75rem 1.6rem;
  border-radius: var(--radius);
  font-size: 0.92rem;
  font-weight: 600;
  transition: all 0.2s;
}

.btn-primary {
  background: var(--accent);
  color: #0a0e17;
}
.btn-primary:hover { background: #00f0c2; color: #0a0e17; transform: translateY(-2px); }

.btn-outline {
  border: 1px solid var(--border);
  color: var(--text);
  background: var(--surface);
}
.btn-outline:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }

/* ===== SECTIONS ===== */
section { padding: 5rem 1.5rem; }

.container { max-width: 1000px; margin: 0 auto; }

.section-label {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  color: var(--accent);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 0.5rem;
}
.section-label::after {
  content: '';
  flex: 1;
  height: 1px;
  background: var(--border);
}

.section-title {
  font-size: clamp(1.6rem, 4vw, 2.2rem);
  font-weight: 800;
  margin-bottom: 2.5rem;
  letter-spacing: -0.02em;
}

/* ===== ABOUT ===== */
#about { background: var(--surface); }

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: start;
}

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

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

.stat-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem;
  text-align: center;
}
.stat-card .num {
  font-size: 2rem;
  font-weight: 800;
  color: var(--accent);
  display: block;
}
.stat-card .label { font-size: 0.8rem; color: var(--muted); }

/* ===== SKILLS ===== */
.skills-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.skill-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.2s, transform 0.2s;
}
.skill-card:hover { border-color: var(--accent); transform: translateY(-3px); }

.skill-card-header {
  display: flex;
  align-items: center;
  gap: 0.75rem;
  margin-bottom: 1rem;
}

.skill-icon {
  width: 36px; height: 36px;
  border-radius: 8px;
  background: rgba(0,212,170,0.1);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.skill-card-title { font-weight: 700; font-size: 0.95rem; }

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

.tag {
  background: var(--surface2);
  border: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.75rem;
  padding: 0.25rem 0.6rem;
  border-radius: 99px;
}

/* ===== EXPERIENCE ===== */
#experience { background: var(--surface); }

.timeline { position: relative; padding-left: 2rem; }
.timeline::before {
  content: '';
  position: absolute;
  left: 0; top: 0; bottom: 0;
  width: 2px;
  background: linear-gradient(to bottom, var(--accent), var(--accent2), transparent);
  border-radius: 1px;
}

.timeline-item { position: relative; margin-bottom: 3rem; }
.timeline-item:last-child { margin-bottom: 0; }

.timeline-dot {
  position: absolute;
  left: -2.55rem;
  top: 0.3rem;
  width: 12px; height: 12px;
  border-radius: 50%;
  background: var(--accent);
  border: 2px solid var(--bg);
  box-shadow: 0 0 0 3px rgba(0,212,170,0.2);
}

.timeline-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-bottom: 0.25rem;
}

.timeline-role { font-size: 1.05rem; font-weight: 700; }
.timeline-date {
  font-size: 0.8rem;
  color: var(--accent);
  background: rgba(0,212,170,0.08);
  padding: 0.2rem 0.7rem;
  border-radius: 99px;
  white-space: nowrap;
}

.timeline-company { color: var(--muted); font-size: 0.9rem; margin-bottom: 1rem; }

.timeline-list {
  list-style: none;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}
.timeline-list li {
  color: var(--muted);
  font-size: 0.92rem;
  padding-left: 1rem;
  position: relative;
}
.timeline-list li::before {
  content: '▸';
  position: absolute;
  left: 0;
  color: var(--accent);
}

/* ===== PROJECTS ===== */
.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.project-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  display: flex;
  flex-direction: column;
  transition: border-color 0.2s, transform 0.2s;
}
.project-card:hover { border-color: var(--accent2); transform: translateY(-3px); }

.project-icon {
  font-size: 1.8rem;
  margin-bottom: 1rem;
}

.project-title { font-size: 1rem; font-weight: 700; margin-bottom: 0.5rem; }
.project-desc { color: var(--muted); font-size: 0.88rem; flex: 1; margin-bottom: 1rem; }

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

/* ===== CERTIFICATIONS ===== */
#certifications { background: var(--surface); }

.certs-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1.2rem;
}

.cert-card {
  background: var(--surface2);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.2rem 1.5rem;
  display: flex;
  align-items: center;
  gap: 1rem;
  transition: border-color 0.2s;
}
.cert-card:hover { border-color: var(--accent); }

.cert-badge {
  width: 42px; height: 42px;
  border-radius: 10px;
  display: flex; align-items: center; justify-content: center;
  font-size: 1.3rem;
  flex-shrink: 0;
}
.cert-badge.aws   { background: rgba(255,153,0,0.12); }
.cert-badge.azure { background: rgba(0,120,212,0.12); }
.cert-badge.comp  { background: rgba(255,60,60,0.12); }

.cert-name { font-weight: 600; font-size: 0.92rem; }
.cert-issuer { font-size: 0.8rem; color: var(--muted); }

/* ===== EDUCATION ===== */
.edu-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 1.5rem;
}

.edu-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1.5rem;
  transition: border-color 0.2s;
}
.edu-card:hover { border-color: var(--accent2); }

.edu-degree { font-weight: 700; margin-bottom: 0.25rem; }
.edu-school { color: var(--accent); font-size: 0.9rem; margin-bottom: 0.5rem; }
.edu-desc { color: var(--muted); font-size: 0.85rem; }

/* ===== CONTACT ===== */
#contact { background: var(--surface); text-align: center; }

.contact-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin-top: 2rem;
}

.contact-link {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  padding: 0.8rem 1.5rem;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  color: var(--text);
  background: var(--surface2);
  font-size: 0.92rem;
  font-weight: 500;
  transition: all 0.2s;
}
.contact-link:hover { border-color: var(--accent); color: var(--accent); transform: translateY(-2px); }
.contact-link svg { width: 18px; height: 18px; }

/* ===== FOOTER ===== */
footer {
  text-align: center;
  padding: 1.5rem;
  color: var(--muted);
  font-size: 0.85rem;
  border-top: 1px solid var(--border);
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
  .about-grid { grid-template-columns: 1fr; }
  nav { padding: 1rem; }
  .nav-links { gap: 1rem; }
  .nav-links a { font-size: 0.8rem; }
}

@media (max-width: 480px) {
  .nav-links { display: none; }
}