:root {
  --bg: #f6f6f1;
  --surface: #ffffffcc;
  --text: #1d2b2a;
  --muted: #4f6763;
  --primary: #0f766e;
  --primary-strong: #115e59;
  --accent: #d97706;
  --border: #c7d9d7;
  --shadow: 0 14px 40px rgba(15, 118, 110, 0.12);
}

body.dark {
  --bg: #17201f;
  --surface: #1f2f2dcc;
  --text: #f2f7f6;
  --muted: #b9ccca;
  --primary: #2dd4bf;
  --primary-strong: #5eead4;
  --accent: #f59e0b;
  --border: #2f4743;
  --shadow: 0 14px 40px rgba(0, 0, 0, 0.35);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  color: var(--text);
  background: radial-gradient(circle at 15% 20%, #defff9 0%, transparent 40%),
    radial-gradient(circle at 90% 10%, #ffe9cd 0%, transparent 35%),
    var(--bg);
  line-height: 1.6;
  overflow-x: hidden;
  transition: background-color 300ms ease, color 300ms ease;
}

h1,
h2,
h3 {
  font-family: "Merriweather", Georgia, serif;
  margin: 0 0 0.6rem;
  line-height: 1.2;
}

a {
  color: var(--primary-strong);
}

.container {
  width: min(1100px, 92%);
  margin-inline: auto;
}

.bg-orb {
  position: fixed;
  width: 280px;
  height: 280px;
  border-radius: 50%;
  filter: blur(42px);
  z-index: -1;
}

.bg-orb-1 {
  left: -90px;
  top: 10%;
  background: color-mix(in srgb, var(--primary) 65%, white 35%);
}

.bg-orb-2 {
  right: -90px;
  bottom: 12%;
  background: color-mix(in srgb, var(--accent) 58%, white 42%);
}

.site-header {
  padding: 0.8rem 0 4rem;
}

.navbar {
  position: sticky;
  top: 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 1rem;
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  backdrop-filter: blur(8px);
  box-shadow: var(--shadow);
  z-index: 10;
}

.logo {
  text-decoration: none;
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--text);
}

.nav-menu {
  display: flex;
  list-style: none;
  gap: 1rem;
  margin: 0;
  padding: 0;
}

.nav-menu a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
}

.nav-menu a.active,
.nav-menu a:hover {
  color: var(--primary-strong);
}

.nav-toggle {
  display: none;
  background: transparent;
  border: none;
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--text);
  margin: 5px 0;
}

.theme-toggle {
  border: 1px solid var(--border);
  background: var(--bg);
  color: var(--text);
  border-radius: 8px;
  padding: 0.45rem 0.75rem;
  cursor: pointer;
}

.hero {
  padding-top: 4rem;
  animation: fadeUp 900ms ease both;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--accent);
  font-weight: 700;
}

.hero h1 {
  font-size: clamp(2rem, 6vw, 3.6rem);
}

.lead {
  font-size: clamp(1.1rem, 3vw, 1.5rem);
  color: var(--muted);
  min-height: 2.4rem;
}

.typed-text {
  color: var(--primary-strong);
  border-right: 2px solid var(--accent);
  padding-right: 0.2rem;
}

.summary,
.objective {
  max-width: 68ch;
}

.hero-actions {
  display: flex;
  gap: 0.8rem;
  flex-wrap: wrap;
  margin-top: 1.4rem;
}

.btn {
  text-decoration: none;
  border-radius: 999px;
  padding: 0.66rem 1.2rem;
  font-weight: 600;
}

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

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

.section {
  padding: 1.2rem 0 2.8rem;
}

.card {
  border: 1px solid var(--border);
  border-radius: 14px;
  background: var(--surface);
  box-shadow: var(--shadow);
  padding: 1rem;
}

.grid {
  display: grid;
  gap: 1rem;
}

.two-col {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.skills-wrap {
  display: flex;
  flex-wrap: wrap;
  gap: 0.6rem;
}

.chip {
  display: inline-block;
  border: 1px solid var(--border);
  border-radius: 999px;
  padding: 0.4rem 0.8rem;
  background: color-mix(in srgb, var(--surface) 85%, var(--primary) 15%);
}

.section-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  margin-bottom: 0.6rem;
}

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

.filter-btn {
  border: 1px solid var(--border);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  padding: 0.4rem 0.9rem;
  cursor: pointer;
}

.filter-btn.active {
  background: var(--primary);
  border-color: var(--primary);
  color: #fff;
}

.project-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.project-card {
  transition: transform 280ms ease, opacity 280ms ease;
}

.project-actions {
  margin-top: 0.8rem;
}

.project-card.hidden {
  opacity: 0;
  transform: scale(0.96);
  pointer-events: none;
  position: absolute;
}

.reveal {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 650ms ease, transform 650ms ease;
}

.reveal.visible {
  opacity: 1;
  transform: translateY(0);
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 1rem;
  text-align: center;
  color: var(--muted);
}

@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(14px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 900px) {
  .project-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .two-col {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  .navbar {
    flex-wrap: wrap;
  }

  .nav-toggle {
    display: block;
    order: 2;
  }

  .theme-toggle {
    order: 3;
    margin-left: auto;
  }

  .nav-menu {
    width: 100%;
    order: 4;
    display: none;
    flex-direction: column;
    background: color-mix(in srgb, var(--surface) 90%, black 10%);
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: 0.8rem;
  }

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

  .project-grid {
    grid-template-columns: 1fr;
  }
}