/* ==========================================================================
   Flakye — Design System
   Tokens: dark near-black surface, single electric-blue accent, monospace
   headings paired with a neutral sans body face.
   ========================================================================== */

:root {
  /* Surfaces */
  --bg: #0a0b0d;
  --bg-raise: #0d0f12;
  --surface: #131519;
  --surface-hover: #181b20;
  --surface-2: #0f1114;

  /* Borders */
  --border: #23262c;
  --border-soft: #1a1c21;
  --border-hover: #34394a;

  /* Text */
  --text: #e9eaed;
  --text-dim: #9aa0ab;
  --text-faint: #5c6169;

  /* Accent — single restrained cool blue, cyan as a secondary glow stop only */
  --accent: #4f9dff;
  --accent-soft: #4f9dff26;
  --accent-glow: #4f9dff40;
  --accent-2: #7fe0ff;

  /* Type */
  --mono: "JetBrains Mono", ui-monospace, "SFMono-Regular", Menlo, monospace;
  --sans: "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;

  /* Shape / motion */
  --radius: 10px;
  --radius-sm: 6px;
  --ease: cubic-bezier(0.22, 1, 0.36, 1);
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }

@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
    scroll-behavior: auto !important;
  }
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--sans);
  font-size: 16px;
  line-height: 1.6;
  -webkit-font-smoothing: antialiased;
  overflow-x: hidden;
}

a { color: inherit; text-decoration: none; }
ul { list-style: none; margin: 0; padding: 0; }
button { font-family: inherit; }
img { max-width: 100%; display: block; }

::selection { background: var(--accent-glow); color: var(--text); }

:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
  border-radius: 3px;
}

.mono { font-family: var(--mono); }

.container {
  max-width: 1180px;
  margin: 0 auto;
  padding: 0 28px;
}

/* Background grid — signature ambient texture, very low contrast */
.grid-bg {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--border-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border-soft) 1px, transparent 1px);
  background-size: 56px 56px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 20%, black 20%, transparent 75%);
  -webkit-mask-image: radial-gradient(ellipse 70% 60% at 50% 20%, black 20%, transparent 75%);
  pointer-events: none;
}

/* ---------- Eyebrow / label chips ---------- */
.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 12px;
  letter-spacing: 0.06em;
  color: var(--text-dim);
  text-transform: uppercase;
}
.eyebrow .dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--accent);
  box-shadow: 0 0 8px var(--accent-glow);
}
.eyebrow .dot.pulse { animation: pulse 2.4s var(--ease) infinite; }
@keyframes pulse {
  0%, 100% { opacity: 1; box-shadow: 0 0 6px var(--accent-glow); }
  50% { opacity: 0.45; box-shadow: 0 0 14px var(--accent-glow); }
}

.tag {
  display: inline-block;
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.04em;
  color: var(--text-dim);
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: 4px;
  padding: 4px 8px;
  white-space: nowrap;
}
.tag.tag-accent { color: var(--accent-2); border-color: #4f9dff33; background: var(--accent-soft); }

/* ---------- Status bar (site-wide HUD ticker) ---------- */
.status-bar {
  border-bottom: 1px solid var(--border-soft);
  background: var(--bg-raise);
  overflow: hidden;
  position: relative;
  height: 30px;
}
.status-bar::before,
.status-bar::after {
  content: "";
  position: absolute;
  top: 0; bottom: 0;
  width: 40px;
  z-index: 2;
  pointer-events: none;
}
.status-bar::before { left: 0; background: linear-gradient(to right, var(--bg-raise), transparent); }
.status-bar::after { right: 0; background: linear-gradient(to left, var(--bg-raise), transparent); }
.status-track {
  display: flex;
  align-items: center;
  gap: 40px;
  white-space: nowrap;
  height: 100%;
  animation: ticker 32s linear infinite;
  width: max-content;
}
.status-track span {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  color: var(--text-faint);
}
.status-track span b { color: var(--text-dim); font-weight: 500; }
@keyframes ticker {
  from { transform: translateX(0); }
  to { transform: translateX(-50%); }
}

/* ---------- Navigation ---------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(10, 11, 13, 0.82);
  backdrop-filter: blur(10px);
  -webkit-backdrop-filter: blur(10px);
}
.navbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}
.logo {
  display: flex;
  align-items: baseline;
  gap: 9px;
  font-family: var(--mono);
  font-weight: 600;
  font-size: 18px;
  letter-spacing: 0.01em;
  color: var(--text);
}
.logo .glyph {
  width: 9px;
  height: 9px;
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent-glow);
  border-radius: 2px;
  display: inline-block;
}
.logo .status-pill {
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-faint);
  border: 1px solid var(--border);
  border-radius: 20px;
  padding: 2px 8px;
  letter-spacing: 0.04em;
  display: none;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 4px;
}
.nav-links a {
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  color: var(--text-dim);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  transition: color 0.18s var(--ease), background 0.18s var(--ease);
}
.nav-links a:hover { color: var(--text); background: var(--surface); }
.nav-links a.active { color: var(--text); }
.nav-links a.nav-cta {
  color: var(--accent-2);
  border: 1px solid #4f9dff3a;
  background: var(--accent-soft);
  margin-left: 6px;
}
.nav-links a.nav-cta:hover {
  background: #4f9dff33;
  border-color: #4f9dff55;
}

.nav-toggle {
  display: none;
  width: 36px;
  height: 36px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface);
  align-items: center;
  justify-content: center;
  cursor: pointer;
}
.nav-toggle span,
.nav-toggle span::before,
.nav-toggle span::after {
  content: "";
  display: block;
  width: 16px;
  height: 1.5px;
  background: var(--text-dim);
  position: relative;
  transition: transform 0.2s var(--ease), opacity 0.2s var(--ease);
}
.nav-toggle span::before { position: absolute; top: -5px; }
.nav-toggle span::after { position: absolute; top: 5px; }
.nav-toggle.open span { background: transparent; }
.nav-toggle.open span::before { transform: translateY(5px) rotate(45deg); }
.nav-toggle.open span::after { transform: translateY(-5px) rotate(-45deg); }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-family: var(--mono);
  font-size: 13px;
  letter-spacing: 0.02em;
  padding: 12px 22px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: transform 0.15s var(--ease), border-color 0.2s var(--ease), background 0.2s var(--ease), box-shadow 0.2s var(--ease);
  background: var(--surface);
  color: var(--text);
}
.btn:hover { border-color: var(--border-hover); transform: translateY(-1px); }
.btn:active { transform: translateY(0); }
.btn-primary {
  background: linear-gradient(180deg, #5aa6ff, #4f9dff);
  border-color: #4f9dff;
  color: #07101c;
  font-weight: 600;
  box-shadow: 0 0 0 0 var(--accent-glow);
}
.btn-primary:hover { box-shadow: 0 4px 24px -4px var(--accent-glow); border-color: #6bb1ff; }
.btn-ghost { background: transparent; }
.btn-ghost:hover { background: var(--surface); }
.btn .arrow { transition: transform 0.2s var(--ease); }
.btn:hover .arrow { transform: translateX(3px); }
.btn[disabled] { opacity: 0.5; cursor: not-allowed; }
.btn[disabled]:hover { transform: none; box-shadow: none; }

/* ---------- Section scaffolding ---------- */
section { position: relative; padding: 108px 0; }
.section-tight { padding: 84px 0; }
.section-head {
  max-width: 640px;
  margin-bottom: 56px;
}
.section-head .eyebrow { margin-bottom: 14px; }
.section-head h2 {
  font-family: var(--mono);
  font-size: clamp(26px, 3.4vw, 36px);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0 0 12px;
}
.section-head p {
  color: var(--text-dim);
  font-size: 16px;
  margin: 0;
}
.divider {
  border: none;
  border-top: 1px solid var(--border-soft);
  margin: 0;
}

[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s var(--ease), transform 0.6s var(--ease);
}
[data-reveal].in-view { opacity: 1; transform: translateY(0); }

/* ---------- Hero ---------- */
.hero {
  padding: 96px 0 84px;
  position: relative;
  overflow: hidden;
}
.hero-inner { position: relative; z-index: 1; }
.hero .eyebrow-row {
  display: flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 28px;
  flex-wrap: wrap;
}
.hero h1 {
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(44px, 8vw, 84px);
  letter-spacing: -0.02em;
  line-height: 1;
  margin: 0 0 22px;
  background: linear-gradient(180deg, #ffffff, #c7ccd6);
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
}
.hero .tagline {
  font-family: var(--sans);
  font-size: clamp(19px, 2.4vw, 24px);
  font-weight: 500;
  color: var(--text);
  margin: 0 0 18px;
  max-width: 640px;
}
.hero .tagline .accent-word { color: var(--accent-2); }
.hero .desc {
  color: var(--text-dim);
  font-size: 16px;
  max-width: 560px;
  margin: 0 0 40px;
}
.hero-actions { display: flex; gap: 14px; flex-wrap: wrap; margin-bottom: 64px; }

.hero-meta {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1px;
  background: var(--border-soft);
  border: 1px solid var(--border-soft);
  border-radius: var(--radius);
  overflow: hidden;
  max-width: 640px;
}
.hero-meta div {
  background: var(--bg-raise);
  padding: 14px 16px;
}
.hero-meta .k {
  font-family: var(--mono);
  font-size: 10px;
  letter-spacing: 0.06em;
  color: var(--text-faint);
  text-transform: uppercase;
  display: block;
  margin-bottom: 6px;
}
.hero-meta .v {
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-dim);
}

.hero-glow {
  position: absolute;
  top: -180px;
  left: 50%;
  transform: translateX(-50%);
  width: 900px;
  height: 500px;
  background: radial-gradient(ellipse at center, var(--accent-glow), transparent 65%);
  filter: blur(10px);
  pointer-events: none;
  z-index: 0;
}

/* ---------- Cards: generic panel ---------- */
.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
}

/* ---------- Project grid ---------- */
.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(320px, 1fr));
  gap: 20px;
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.28s var(--ease), border-color 0.28s var(--ease), background 0.28s var(--ease), box-shadow 0.28s var(--ease);
  display: flex;
  flex-direction: column;
}
.card:hover {
  transform: translateY(-4px);
  border-color: var(--border-hover);
  background: var(--surface-hover);
  box-shadow: 0 16px 40px -20px rgba(0,0,0,0.6), 0 0 0 1px var(--accent-soft);
}

.card-art {
  aspect-ratio: 16 / 9;
  position: relative;
  overflow: hidden;
  background:
    linear-gradient(135deg, var(--surface-2) 0%, var(--bg-raise) 100%);
  border-bottom: 1px solid var(--border);
}
.card-art::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(to right, var(--border-soft) 1px, transparent 1px),
    linear-gradient(to bottom, var(--border-soft) 1px, transparent 1px);
  background-size: 22px 22px;
  transition: transform 0.5s var(--ease);
}
.card:hover .card-art::before { transform: scale(1.08); }
.card-art .art-glyph {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.08em;
}
.card-art .art-corner {
  position: absolute;
  top: 12px;
  right: 12px;
  font-family: var(--mono);
  font-size: 10px;
  color: var(--text-faint);
  letter-spacing: 0.04em;
}

.card-body { padding: 20px 22px 22px; display: flex; flex-direction: column; gap: 10px; flex: 1; }
.card-body .card-top {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 12px;
}
.card-body h3 {
  font-family: var(--mono);
  font-size: 18px;
  font-weight: 600;
  margin: 0;
  letter-spacing: -0.005em;
}
.card-body .category {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--accent-2);
  letter-spacing: 0.04em;
  margin: 2px 0 0;
}
.card-body p.desc {
  color: var(--text-dim);
  font-size: 14px;
  margin: 4px 0 8px;
  line-height: 1.55;
}
.card-meta-row {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  margin-bottom: 4px;
}
.card-cta {
  margin-top: auto;
  display: flex;
  align-items: center;
  gap: 6px;
  font-family: var(--mono);
  font-size: 12.5px;
  color: var(--text-dim);
  padding-top: 12px;
  transition: color 0.2s var(--ease), gap 0.2s var(--ease);
}
.card:hover .card-cta { color: var(--accent-2); gap: 10px; }
.card-cta .arrow { transition: transform 0.2s var(--ease); }
.card:hover .card-cta .arrow { transform: translateX(3px); }

/* ---------- Shaderpack cards ---------- */
.shader-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 18px;
}
.shader-card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.26s var(--ease), border-color 0.26s var(--ease), box-shadow 0.26s var(--ease);
}
.shader-card:hover {
  transform: translateY(-3px);
  border-color: var(--border-hover);
  box-shadow: 0 14px 34px -18px rgba(0,0,0,0.6), 0 0 0 1px var(--accent-soft);
}
.shader-art {
  aspect-ratio: 4 / 3;
  position: relative;
  background: linear-gradient(160deg, var(--surface-2), var(--bg-raise));
  border-bottom: 1px solid var(--border);
  overflow: hidden;
}
.shader-art::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, var(--border-soft) 1px, transparent 1px),
                     linear-gradient(to bottom, var(--border-soft) 1px, transparent 1px);
  background-size: 18px 18px;
  transition: transform 0.5s var(--ease);
}
.shader-card:hover .shader-art::before { transform: scale(1.1); }
.shader-art .initial {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-weight: 700;
  font-size: 34px;
  color: var(--border-hover);
  letter-spacing: 0.02em;
}
.shader-badge {
  position: absolute;
  top: 10px;
  left: 10px;
  font-family: var(--mono);
  font-size: 9.5px;
  letter-spacing: 0.05em;
  color: var(--accent-2);
  background: rgba(10,11,13,0.75);
  border: 1px solid #4f9dff33;
  border-radius: 4px;
  padding: 3px 7px;
  backdrop-filter: blur(4px);
}
.shader-info { padding: 16px 18px 18px; }
.shader-info h3 {
  font-family: var(--mono);
  font-size: 16px;
  font-weight: 600;
  margin: 0 0 8px;
}
.shader-info .meta-line {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.03em;
  display: block;
  margin-bottom: 3px;
}
.shader-info .meta-line b { color: var(--text-dim); font-weight: 500; }

.unreleased-banner {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 12px 18px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-dim);
  margin-bottom: 36px;
  width: fit-content;
}

/* ---------- Nitrogen featured section ---------- */
.nitrogen-section { padding-top: 40px; }
.nitrogen-panel {
  background: linear-gradient(160deg, var(--surface) 0%, var(--surface-2) 100%);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 48px;
  position: relative;
  overflow: hidden;
}
.nitrogen-panel::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, var(--border-soft) 1px, transparent 1px),
                     linear-gradient(to bottom, var(--border-soft) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 60% 80% at 100% 0%, black, transparent 70%);
  -webkit-mask-image: radial-gradient(ellipse 60% 80% at 100% 0%, black, transparent 70%);
  opacity: 0.7;
}
.nitrogen-top {
  position: relative;
  z-index: 1;
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 40px;
  flex-wrap: wrap;
  margin-bottom: 36px;
}
.nitrogen-heading h2 {
  font-family: var(--mono);
  font-size: clamp(28px, 4vw, 40px);
  margin: 12px 0 14px;
  font-weight: 700;
}
.nitrogen-heading .label {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--accent-2);
  letter-spacing: 0.05em;
}
.nitrogen-heading p.desc {
  color: var(--text-dim);
  max-width: 520px;
  margin: 0;
  font-size: 15.5px;
}
.nitrogen-status {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-dim);
  border: 1px solid var(--border-hover);
  border-radius: 20px;
  padding: 7px 14px;
  white-space: nowrap;
}

.nitrogen-stats {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1px;
  background: var(--border);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  overflow: hidden;
  margin-bottom: 36px;
}
.nitrogen-stats .stat {
  background: var(--bg-raise);
  padding: 20px 18px;
  transition: background 0.2s var(--ease);
}
.nitrogen-stats .stat:hover { background: var(--surface-hover); }
.nitrogen-stats .stat .stat-label {
  font-family: var(--mono);
  font-size: 10.5px;
  letter-spacing: 0.05em;
  color: var(--text-faint);
  text-transform: uppercase;
  display: block;
  margin-bottom: 10px;
}
.nitrogen-stats .stat .stat-value {
  font-family: var(--mono);
  font-size: 14px;
  color: var(--accent-2);
}

.nitrogen-goals {
  position: relative;
  z-index: 1;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: 10px;
  margin-bottom: 36px;
}
.nitrogen-goals .goal {
  display: flex;
  align-items: center;
  gap: 10px;
  font-size: 13.5px;
  color: var(--text-dim);
  padding: 10px 12px;
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
}
.nitrogen-goals .goal::before {
  content: "";
  width: 5px; height: 5px;
  border-radius: 50%;
  background: var(--accent);
  flex-shrink: 0;
}
.nitrogen-actions { position: relative; z-index: 1; display: flex; gap: 14px; flex-wrap: wrap; }

/* ---------- About ---------- */
.about-panel {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 40px;
  align-items: start;
}
.about-panel .about-copy p {
  color: var(--text-dim);
  font-size: 16px;
  line-height: 1.75;
  margin: 0 0 16px;
}
.about-side {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  padding: 22px;
}
.about-side .row {
  display: flex;
  justify-content: space-between;
  padding: 10px 0;
  border-bottom: 1px solid var(--border-soft);
  font-family: var(--mono);
  font-size: 12px;
}
.about-side .row:last-child { border-bottom: none; }
.about-side .row .k { color: var(--text-faint); letter-spacing: 0.03em; }
.about-side .row .v { color: var(--text-dim); }

/* ---------- Footer ---------- */
.site-footer {
  border-top: 1px solid var(--border-soft);
  padding: 56px 0 28px;
  background: var(--bg-raise);
}
.footer-top {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 40px;
  margin-bottom: 36px;
}
.footer-brand .logo { margin-bottom: 10px; }
.footer-brand p {
  font-family: var(--mono);
  font-size: 12px;
  color: var(--text-faint);
  letter-spacing: 0.03em;
  margin: 0;
}
.footer-links {
  display: flex;
  gap: 48px;
  flex-wrap: wrap;
}
.footer-col h4 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin: 0 0 14px;
}
.footer-col a,
.footer-col span.placeholder {
  display: block;
  font-family: var(--mono);
  font-size: 13px;
  color: var(--text-dim);
  margin-bottom: 10px;
}
.footer-col a:hover { color: var(--accent-2); }
.footer-col span.placeholder { color: var(--text-faint); }
.footer-bottom {
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 12px;
  padding-top: 24px;
  border-top: 1px solid var(--border-soft);
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.03em;
}
.footer-status { display: flex; gap: 18px; flex-wrap: wrap; }
.footer-status span b { color: var(--text-dim); font-weight: 500; }

/* ---------- Modal (project detail) ---------- */
.modal-overlay {
  position: fixed;
  inset: 0;
  background: rgba(6, 7, 9, 0.72);
  backdrop-filter: blur(4px);
  -webkit-backdrop-filter: blur(4px);
  display: flex;
  align-items: flex-start;
  justify-content: center;
  padding: 64px 20px;
  z-index: 200;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.22s var(--ease);
  overflow-y: auto;
}
.modal-overlay.open { opacity: 1; pointer-events: auto; }
.modal {
  background: var(--surface);
  border: 1px solid var(--border-hover);
  border-radius: 14px;
  max-width: 640px;
  width: 100%;
  transform: translateY(14px) scale(0.98);
  transition: transform 0.24s var(--ease);
  box-shadow: 0 30px 80px -20px rgba(0,0,0,0.7);
}
.modal-overlay.open .modal { transform: translateY(0) scale(1); }
.modal-art {
  aspect-ratio: 21/9;
  background: linear-gradient(150deg, var(--surface-2), var(--bg-raise));
  border-bottom: 1px solid var(--border);
  border-radius: 14px 14px 0 0;
  position: relative;
  overflow: hidden;
}
.modal-art::before {
  content: "";
  position: absolute;
  inset: 0;
  background-image: linear-gradient(to right, var(--border-soft) 1px, transparent 1px),
                     linear-gradient(to bottom, var(--border-soft) 1px, transparent 1px);
  background-size: 26px 26px;
}
.modal-art .placeholder-label {
  position: absolute;
  inset: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.06em;
}
.modal-close {
  position: absolute;
  top: 16px;
  right: 16px;
  width: 32px;
  height: 32px;
  border-radius: 50%;
  background: rgba(10,11,13,0.7);
  border: 1px solid var(--border-hover);
  color: var(--text-dim);
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  font-size: 16px;
  z-index: 2;
}
.modal-close:hover { color: var(--text); border-color: var(--text-faint); }
.modal-body { padding: 30px 32px 32px; }
.modal-body .category { font-family: var(--mono); font-size: 11px; color: var(--accent-2); letter-spacing: 0.04em; margin-bottom: 8px; }
.modal-body h3 { font-family: var(--mono); font-size: 24px; margin: 0 0 14px; }
.modal-body .tags { display: flex; gap: 8px; flex-wrap: wrap; margin-bottom: 18px; }
.modal-body p.desc { color: var(--text-dim); font-size: 15px; line-height: 1.7; margin: 0 0 22px; }
.modal-section { margin-bottom: 20px; }
.modal-section h5 {
  font-family: var(--mono);
  font-size: 11px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--text-faint);
  margin: 0 0 8px;
}
.modal-section p { color: var(--text-dim); font-size: 14px; line-height: 1.65; margin: 0; }
.modal-links { display: flex; gap: 10px; flex-wrap: wrap; margin-top: 24px; }
.modal-links .btn { font-size: 12.5px; padding: 10px 16px; }

body.modal-lock { overflow: hidden; }

/* ---------- Donate page specific ---------- */
.donate-hero { padding: 84px 0 56px; text-align: left; }
.donate-hero h1 {
  font-family: var(--mono);
  font-weight: 700;
  font-size: clamp(36px, 6vw, 56px);
  letter-spacing: -0.02em;
  margin: 18px 0 14px;
}
.donate-hero .sub {
  font-size: clamp(17px, 2vw, 20px);
  color: var(--text);
  font-weight: 500;
  margin: 0 0 16px;
}
.donate-hero p.desc { color: var(--text-dim); max-width: 600px; font-size: 15.5px; margin: 0; }

.donate-grid {
  display: grid;
  grid-template-columns: 1.15fr 0.85fr;
  gap: 24px;
  align-items: start;
}

.donate-panel { padding: 30px 30px 32px; }
.donate-panel h3 { font-family: var(--mono); font-size: 18px; margin: 0 0 6px; }
.donate-panel .hint { font-family: var(--mono); font-size: 11.5px; color: var(--text-faint); letter-spacing: 0.04em; text-transform: uppercase; margin: 0 0 20px; }

.amount-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-bottom: 14px;
}
.amount-btn {
  font-family: var(--mono);
  font-size: 15px;
  padding: 16px 10px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
  color: var(--text);
  cursor: pointer;
  transition: border-color 0.18s var(--ease), background 0.18s var(--ease), transform 0.15s var(--ease);
}
.amount-btn:hover { border-color: var(--border-hover); transform: translateY(-1px); }
.amount-btn.selected {
  border-color: var(--accent);
  background: var(--accent-soft);
  color: var(--accent-2);
  box-shadow: 0 0 0 1px var(--accent-glow);
}
.amount-custom {
  position: relative;
  margin-bottom: 22px;
}
.amount-custom span {
  position: absolute;
  left: 14px;
  top: 50%;
  transform: translateY(-50%);
  font-family: var(--mono);
  color: var(--text-faint);
  font-size: 14px;
}
.amount-custom input {
  width: 100%;
  background: var(--surface-2);
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  color: var(--text);
  font-family: var(--mono);
  font-size: 14px;
  padding: 14px 14px 14px 28px;
  transition: border-color 0.18s var(--ease);
}
.amount-custom input:focus { border-color: var(--accent); outline: none; }
.amount-custom input::placeholder { color: var(--text-faint); }

.donate-note {
  font-family: var(--mono);
  font-size: 11px;
  color: var(--text-faint);
  letter-spacing: 0.03em;
  margin: 14px 0 0;
  text-align: center;
}

.tiers { display: flex; flex-direction: column; gap: 14px; }
.tier {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 20px 22px;
  background: var(--surface);
}
.tier .tier-top { display: flex; justify-content: space-between; align-items: baseline; margin-bottom: 6px; }
.tier h4 { font-family: var(--mono); font-size: 14.5px; margin: 0; }
.tier .tier-index { font-family: var(--mono); font-size: 11px; color: var(--text-faint); }
.tier p { color: var(--text-dim); font-size: 13.5px; margin: 0; line-height: 1.6; }

.support-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 14px;
}
.support-item {
  border: 1px solid var(--border-soft);
  border-radius: var(--radius-sm);
  padding: 16px 18px;
  font-size: 13.5px;
  color: var(--text-dim);
  display: flex;
  align-items: center;
  gap: 10px;
}
.support-item::before {
  content: "";
  width: 5px; height: 5px;
  background: var(--accent);
  border-radius: 50%;
  flex-shrink: 0;
}

.confirm-overlay {
  position: fixed;
  inset: 0;
  background: rgba(6,7,9,0.85);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 300;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.25s var(--ease);
}
.confirm-overlay.open { opacity: 1; pointer-events: auto; }
.confirm-card {
  background: var(--surface);
  border: 1px solid var(--border-hover);
  border-radius: 14px;
  padding: 44px 40px;
  text-align: center;
  max-width: 440px;
  width: 100%;
  transform: translateY(10px);
  transition: transform 0.25s var(--ease);
}
.confirm-overlay.open .confirm-card { transform: translateY(0); }
.confirm-card .check {
  width: 52px; height: 52px;
  border-radius: 50%;
  border: 1px solid #4f9dff55;
  background: var(--accent-soft);
  display: flex; align-items: center; justify-content: center;
  margin: 0 auto 20px;
  color: var(--accent-2);
  font-size: 22px;
}
.confirm-card h3 { font-family: var(--mono); font-size: 20px; margin: 0 0 10px; }
.confirm-card .tag-accent-line { margin-bottom: 24px; }
.confirm-card p.support-line { color: var(--text-dim); font-size: 14px; margin: 0 0 24px; }

/* ---------- Responsive ---------- */
@media (max-width: 860px) {
  .about-panel { grid-template-columns: 1fr; }
  .donate-grid { grid-template-columns: 1fr; }
  .nitrogen-stats { grid-template-columns: repeat(2, 1fr); }
}

@media (max-width: 720px) {
  .nav-links { display: none; }
  .nav-toggle { display: flex; }
  .nav-links.mobile-open {
    display: flex;
    flex-direction: column;
    position: absolute;
    top: 64px;
    left: 0;
    right: 0;
    background: var(--bg);
    border-bottom: 1px solid var(--border);
    padding: 10px 20px 20px;
    gap: 2px;
    align-items: stretch;
  }
  .nav-links.mobile-open a { padding: 12px 8px; border-bottom: 1px solid var(--border-soft); border-radius: 0; }
  .nav-links.mobile-open a.nav-cta { margin-left: 0; margin-top: 8px; border-radius: var(--radius-sm); border-bottom: 1px solid #4f9dff3a; text-align: center; }

  section { padding: 72px 0; }
  .hero { padding: 56px 0 56px; }
  .hero-meta { grid-template-columns: 1fr; }
  .nitrogen-panel { padding: 28px 22px; }
  .nitrogen-stats { grid-template-columns: 1fr 1fr; }
  .nitrogen-top { flex-direction: column; }
  .amount-grid { grid-template-columns: repeat(2, 1fr); }
  .footer-top { flex-direction: column; }
}

@media (max-width: 480px) {
  .container { padding: 0 18px; }
  .hero h1 { font-size: 48px; }
}