:root {
  --bg: #0b0f10;
  --panel: #111618;
  --muted: #9fb0b5;
  --text: #e9f1f2;
  --brand: #146c43;       /* Primary dark green */
  --brand-2: #1c7a4f;     /* Hover green */
  --border: #1f2a2e;
  --focus: #62c18f;       /* Mint green for focus */
  --shadow: 0 8px 24px rgba(0,0,0,0.35);
}

* {
  box-sizing: border-box;
}
html, body {
  height: 100%;
  display: flex;
  flex-direction: column;
}
body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
  background: linear-gradient(180deg, #0b0f10 0%, #0e1315 100%);
  color: var(--text);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
main {
  flex: 1;
}

.container {
  width: min(1100px, 92%);
  margin-inline: auto;
  padding: 1rem 0 2rem;
}

/* Header */
.site-header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: #0c1213cc;
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--border);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  min-height: 64px;
}
.brand {
  color: var(--text);
  text-decoration: none;
  font-weight: 700;
  letter-spacing: 0.3px;
}
.nav-toggle {
  display: none;
  background: transparent;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 0.35rem 0.5rem;
  color: var(--text);
}
.nav-menu {
  display: flex;
  gap: 0.75rem;
  list-style: none;
  padding: 0;
  margin: 0;
}
.nav a {
  color: var(--muted);
  text-decoration: none;
  padding: 0.5rem 0.75rem;
  border-radius: 12px;
}
.nav a[aria-current],
.nav a:hover {
  color: var(--text);
  background: var(--panel);
}
.header-actions {
  display: flex;
  align-items: center;
  gap: 0.5rem;
}
.badge {
  border: 1px solid var(--brand);
  color: var(--brand);
  padding: 0.2rem 0.5rem;
  border-radius: 999px;
  font-size: 0.8rem;
}
.hidden {
  display: none !important;
}

/* Footer */
.site-footer {
  border-top: 1px solid var(--border);
  background: var(--panel);
  margin-top: 4rem;
}
.footer-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 1rem 0;
}
.site-footer a {
  color: var(--muted);
  text-decoration: none;
}
.site-footer a:hover {
  color: var(--brand);
}

/* General Layout */
.page-title,
.section-title {
  font-size: 1.75rem;
  margin: 1rem 0 0.5rem;
  color: var(--brand);
  border-bottom: 2px solid var(--brand-2);
  padding-bottom: 0.25rem;
}
.section-title {
  font-size: 1.25rem;
}
.muted {
  color: var(--muted);
}
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
  gap: 1rem;
}
.cards .card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 18px;
  padding: 1rem;
  box-shadow: var(--shadow);
}
.list {
  display: grid;
  gap: 1rem;
}

/* Buttons */
.btn {
  background: var(--brand);
  color: #062315;
  border: none;
  border-radius: 14px;
  padding: 0.6rem 1rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: var(--shadow);
}
.btn:hover {
  background: var(--brand-2);
}
.btn:focus {
  outline: 2px solid var(--focus);
  outline-offset: 2px;
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--border);
}
.btn-ghost:hover {
  background: var(--panel);
}
.btn.outline {
  background: transparent;
  color: var(--text);
  border: 1px solid var(--brand);
}
.toolbar {
  display: flex;
  gap: 0.5rem;
  margin-top: 1rem;
  flex-wrap: wrap;
}

/* Cards & Thumbnails */
.thumb {
  display: block;
  width: 100%;
  aspect-ratio: 1/1;
  object-fit: cover;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: #0f1416;
  filter: saturate(1.05);
  transition: transform 0.15s ease, box-shadow 0.2s ease;
}
.thumb:hover {
  transform: translateY(-2px);
  outline: 2px solid var(--brand);
  box-shadow: 0 0 10px var(--brand-2);
}
.card h3 {
  margin: 0.6rem 0 0.2rem 0;
  color: var(--brand);
}
.card p {
  margin: 0.2rem 0;
}

/* Modals (dialog) */
dialog {
  border: none;
  border-radius: 20px;
  padding: 0;
  box-shadow: var(--shadow);
  background: transparent;
}
dialog::backdrop {
  background: rgba(0, 100, 0, 1);
}
.modal-card {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 1rem;
  min-width: min(850px, 92vw);
}
.modal-card img {
  width: 100%;
  height: auto;
  border-radius: 12px;
  margin-bottom: 1rem;
}
.modal-meta {
  color: var(--brand-2);
  margin: 0.25rem 0 1rem;
}
.modal-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
}

/* Forms */
input, textarea {
  width: 100%;
  padding: 0.6rem 0.7rem;
  border-radius: 12px;
  border: 1px solid var(--border);
  background: #0e1416;
  color: var(--text);
}
label {
  display: block;
  font-weight: 600;
  margin: 0.5rem 0 0.25rem;
}
.error {
  color: #ff6b6b;
  margin-top: 0.5rem;
}

/* About */
.about-hero {
  display: grid;
  grid-template-columns: 160px 1fr;
  gap: 1rem;
  align-items: center;
}
.about .avatar {
  border-radius: 20px;
  border: 1px solid var(--border);
}
.links {
  display: flex;
  gap: 0.5rem;
  margin-top: 0.5rem;
}
.details ul {
  padding-left: 1.2rem;
}
.callout {
  background: #0e1416;
  border: 1px dashed var(--border);
  border-radius: 14px;
  padding: 1rem;
  color: var(--muted);
}

/* Responsive */
@media (max-width: 720px) {
  .nav-menu {
    display: none;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .modal-card {
    min-width: min(640px, 92vw);
  }
  .about-hero {
    grid-template-columns: 1fr;
    text-align: center;
  }
}