:root {
  --bg: #0b1020;
  --panel: #121931;
  --text: #e8ecf4;
  --muted: #a8b0c5;
  --accent: #64b5ff;
  --border: #223055;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  background: linear-gradient(180deg, #09101d 0%, #0f1830 100%);
  color: var(--text);
  line-height: 1.6;
}

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

a:hover {
  text-decoration: underline;
}

/* Layout */
.container {
  width: min(1100px, 92%);
  margin: 0 auto;
}

header {
  padding: 72px 0 40px;
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

nav {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  margin-bottom: 48px;
  flex-wrap: wrap;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.5px;
  font-size: 1.1rem;
}

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

.hero-image {
  width: 100%;
  max-width: 900px;
  display: block;
  margin: 20px auto 30px;
  border-radius: 16px;
  border: 1px solid rgba(90, 120, 200, 0.25);
}

/* Hero */
.hero {
  display: grid;
  grid-template-columns: 1.4fr 1fr;
  gap: 28px;
  align-items: center;
}

.hero h1 {
  font-size: clamp(2.2rem, 5vw, 4rem);
  line-height: 1.1;
  margin: 0 0 14px;
}

.hero p {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 24px;
  max-width: 60ch;
}

.hero-card,
.card,
.project-detail-card {
  background: rgba(18, 25, 49, 0.85);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 24px;
  backdrop-filter: blur(8px);
  box-shadow: 0 12px 30px rgba(0,0,0,0.22);
}

/* Buttons */
.cta-row {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.btn {
  display: inline-block;
  padding: 12px 18px;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #182343;
  color: var(--text);
  font-weight: 600;
}

.btn.primary {
  background: var(--accent);
  color: #08111f;
  border-color: transparent;
}

/* Sections */
main {
  padding: 44px 0 70px;
}

section {
  margin-bottom: 30px;
}

h1,
h2,
h3 {
  color: var(--text);
}

h2 {
  font-size: 1.6rem;
  margin-bottom: 14px;
}

h3 {
  margin-bottom: 10px;
}

.muted {
  color: var(--muted);
}

/* Grid */
.grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 18px;
}

.project h3,
.card h3 {
  margin-top: 0;
}

/* Lists */
ul {
  padding-left: 20px;
  margin: 10px 0 0;
}

/* Projects page */
.projects-page h1 {
  font-size: 2.5rem;
  margin-bottom: 12px;
}

.projects-intro {
  max-width: 850px;
  margin-bottom: 32px;
  color: var(--muted);
}

.project-detail-card {
  margin-bottom: 40px;
}

/* Screenshots */
.project-screenshots {
  margin-top: 24px;
}

.screenshot-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 16px;
  margin-top: 12px;
}

.screenshot-grid img {
  width: 100% !important;
  max-width: 100% !important;
  height: auto !important;
  max-height: none !important;
  object-fit: contain !important;
  border-radius: 14px;
  border: 1px solid var(--border);
  background: #16213f;
  display: block;
  padding: 8px;
}

.screenshot-grid figure {
  margin: 0;
  background: #16213f;
  border: 1px solid var(--border);
  border-radius: 14px;
  padding: 10px;
}

.screenshot-grid figcaption {
  margin-top: 10px;
  font-size: 0.95rem;
  color: var(--muted);
  line-height: 1.4;
}

/* Education */
.education-entry + .education-entry {
  margin-top: 28px;
  padding-top: 24px;
  border-top: 1px solid rgba(255,255,255,0.08);
}

.education-entry h3 {
  margin-bottom: 10px;
}

/* Footer */
footer {
  padding: 26px 0 50px;
  color: var(--muted);
  border-top: 1px solid rgba(255,255,255,0.08);
}

/* Responsive */
@media (max-width: 900px) {
  .hero,
  .grid {
    grid-template-columns: 1fr;
  }

  nav {
    flex-direction: column;
    align-items: flex-start;
  }

  .cta-row {
    flex-direction: column;
    align-items: flex-start;
  }
}