:root {
  --bg: #0f1411;
  --bg-2: #161d18;
  --panel: rgba(24, 34, 28, 0.88);
  --panel-hover: rgba(32, 46, 38, 0.96);

  --border: rgba(212, 175, 55, 0.16);
  --border-strong: rgba(212, 175, 55, 0.34);

  --text: #f7f5ea;
  --muted: #b7c2b6;

  --accent: #2bb673;
  --accent-2: #d4af37;
  --accent-soft: rgba(43, 182, 115, 0.12);
  --accent-soft-2: rgba(212, 175, 55, 0.12);

  --thumb-bg: #18211b;
  --tag-text: #e7e1c8;

  --shadow: 0 10px 30px rgba(0, 0, 0, 0.38);
  --shadow-hover: 0 20px 45px rgba(0, 0, 0, 0.52);
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
  min-height: 100%;
  background:
    radial-gradient(circle at top left, rgba(43, 182, 115, 0.12), transparent 24%),
    radial-gradient(circle at top right, rgba(212, 175, 55, 0.10), transparent 22%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg-2) 100%);
  color: var(--text);
  font-family: Inter, Arial, Helvetica, sans-serif;
}

body {
  line-height: 1.55;
  letter-spacing: 0.01em;
}

img {
  display: block;
  max-width: 100%;
}

a {
  color: inherit;
  text-decoration: none;
}

a:focus-visible,
button:focus-visible {
  outline: 2px solid var(--accent-2);
  outline-offset: 3px;
}

.site-header {
  padding: 64px 20px 30px;
  border-bottom: 1px solid var(--border);
  background:
    radial-gradient(circle at top left, rgba(43, 182, 115, 0.16), transparent 28%),
    radial-gradient(circle at 80% 0%, rgba(212, 175, 55, 0.14), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.03), transparent 70%);
}

.header-inner,
.main-content {
  width: min(1200px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header h1 {
  margin: 0 0 10px;
  font-size: clamp(2.2rem, 4vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.site-header p {
  margin: 0;
  max-width: 720px;
  color: var(--muted);
}

.main-content {
  padding: 40px 0 72px;
}

.section-head {
  margin-bottom: 24px;
}

.section-head h2 {
  margin: 0 0 8px;
  font-size: 1.75rem;
  line-height: 1.1;
  letter-spacing: -0.02em;
}

.section-head p {
  margin: 0;
  max-width: 60ch;
  color: var(--muted);
}

.projects-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 24px;
}

.project-card {
  position: relative;
  display: flex;
  flex-direction: column;
  min-height: 100%;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 20px;
  overflow: hidden;
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  transition:
    transform 0.22s ease,
    background 0.22s ease,
    border-color 0.22s ease,
    box-shadow 0.22s ease;
}

.project-card::before {
  content: "";
  position: absolute;
  inset: 0;
  pointer-events: none;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.08),
    rgba(255, 255, 255, 0.02) 22%,
    transparent 45%
  );
}

.project-card:hover {
  transform: translateY(-6px);
  background: var(--panel-hover);
  border-color: var(--border-strong);
  box-shadow: var(--shadow-hover);
}

.project-thumb-wrap {
  position: relative;
  aspect-ratio: 16 / 9;
  background: var(--thumb-bg);
  overflow: hidden;
}

.project-thumb-wrap::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(8, 20, 12, 0.02),
    rgba(8, 20, 12, 0.18)
  );
  pointer-events: none;
}

.project-thumb {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transform: scale(1);
  transition: transform 0.35s ease;
}

.project-card:hover .project-thumb {
  transform: scale(1.04);
}

.project-body {
  display: flex;
  flex-direction: column;
  gap: 10px;
  padding: 18px;
}

.project-title {
  margin: 0;
  font-size: 1.1rem;
  line-height: 1.2;
  letter-spacing: -0.01em;
  color: var(--text);
}

.project-desc {
  margin: 0;
  color: var(--muted);
  font-size: 0.94rem;
  line-height: 1.6;
}

.project-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  margin-top: 6px;
}

.project-tag {
  padding: 5px 10px;
  border: 1px solid rgba(212, 175, 55, 0.16);
  border-radius: 999px;
  font-size: 0.78rem;
  color: var(--tag-text);
  background: rgba(212, 175, 55, 0.08);
  backdrop-filter: blur(6px);
}

.tag-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-bottom: 24px;
}

.tag-filter-btn {
  padding: 9px 15px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  cursor: pointer;
  transition:
    border-color 0.18s ease,
    background 0.18s ease,
    transform 0.18s ease,
    color 0.18s ease,
    box-shadow 0.18s ease;
}

.tag-filter-btn:hover {
  border-color: var(--accent);
  background: var(--accent-soft);
  transform: translateY(-1px);
}

.tag-filter-btn.active {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0f1411;
  border-color: var(--accent-2);
  box-shadow: 0 8px 20px rgba(212, 175, 55, 0.24);
}