/* ── Variables ──────────────────────────────────────────────────────────── */
:root {
  --bg-dark:   #060d1c;
  --bg-mid:    #0d1b35;
  --bg-card:   rgba(255,255,255,0.05);
  --border:    rgba(255,255,255,0.10);
  --text:      #ddeeff;
  --muted:     #5a7a9e;
  --amber:     #f59e0b;
  --amber-dim: rgba(245,158,11,0.15);
  --green:     #4ade80;
  --red:       #f87171;
  --radius:    12px;
}

/* ── Reset ──────────────────────────────────────────────────────────────── */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }
html { scroll-behavior: smooth; }
body {
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
  background: var(--bg-dark);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
}
a { color: var(--amber); text-decoration: none; }
a:hover { text-decoration: underline; }
img { max-width: 100%; border-radius: var(--radius); display: block; }

/* ── Navigation ─────────────────────────────────────────────────────────── */
nav {
  position: sticky; top: 0; z-index: 100;
  background: rgba(6,13,28,0.92);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid var(--border);
  padding: 0 24px;
  display: flex; align-items: center; justify-content: space-between;
  height: 58px;
}
.nav-brand {
  display: flex; align-items: center; gap: 8px;
  font-weight: 700; font-size: 1rem; color: var(--text);
  text-decoration: none;
}
.nav-brand .bolt { color: var(--amber); font-size: 1.2rem; }
.nav-links { display: flex; gap: 8px; }
.nav-links a {
  color: var(--muted); padding: 6px 14px; border-radius: 8px;
  font-size: .88rem; transition: color .2s, background .2s;
  text-decoration: none;
}
.nav-links a:hover,
.nav-links a.active { color: var(--text); background: var(--bg-card); }
.nav-links a.active { color: var(--amber); }

/* ── Page wrapper ───────────────────────────────────────────────────────── */
.page { max-width: 960px; margin: 0 auto; padding: 0 24px 80px; }

/* ── Hero ───────────────────────────────────────────────────────────────── */
.hero {
  text-align: center;
  padding: 80px 24px 64px;
  background: linear-gradient(180deg, var(--bg-mid) 0%, transparent 100%);
}
.hero-badge {
  display: inline-flex; align-items: center; gap: 6px;
  background: var(--amber-dim); border: 1px solid rgba(245,158,11,.35);
  border-radius: 20px; padding: 4px 14px;
  font-size: .78rem; color: var(--amber); margin-bottom: 24px;
}
.hero h1 {
  font-size: clamp(2rem, 5vw, 3rem);
  font-weight: 800; letter-spacing: -.5px;
  line-height: 1.15; margin-bottom: 20px;
}
.hero h1 span { color: var(--amber); }
.hero p {
  font-size: 1.1rem; color: var(--muted);
  max-width: 560px; margin: 0 auto 36px;
}
.btn-row {
  display: flex; gap: 12px; justify-content: center; flex-wrap: wrap;
}
.btn {
  display: inline-flex; align-items: center; gap: 8px;
  padding: 13px 26px; border-radius: var(--radius);
  font-size: .95rem; font-weight: 600; cursor: pointer;
  transition: opacity .2s, transform .1s; text-decoration: none;
  border: none;
}
.btn:hover { opacity: .88; text-decoration: none; }
.btn:active { transform: scale(.97); }
.btn-primary { background: var(--amber); color: #0a0f1e; }
.btn-secondary {
  background: var(--bg-card); border: 1px solid var(--border);
  color: var(--text);
}
.btn-sm { padding: 9px 18px; font-size: .84rem; }
.btn-win { background: #0078d4; color: #fff; }
.btn-linux { background: #e95420; color: #fff; }

/* ── Section ────────────────────────────────────────────────────────────── */
section { margin-bottom: 72px; }
.section-label {
  font-size: .72rem; font-weight: 700; letter-spacing: 1.2px;
  text-transform: uppercase; color: var(--amber); margin-bottom: 12px;
}
.section-title {
  font-size: clamp(1.5rem, 3vw, 2rem);
  font-weight: 700; margin-bottom: 12px;
}
.section-sub { color: var(--muted); max-width: 520px; margin-bottom: 36px; }

/* ── Feature cards ──────────────────────────────────────────────────────── */
.features {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
  gap: 16px;
}
.feature-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 22px;
}
.feature-icon { font-size: 1.6rem; margin-bottom: 10px; }
.feature-card h3 { font-size: .95rem; margin-bottom: 6px; }
.feature-card p { font-size: .82rem; color: var(--muted); line-height: 1.5; }

/* ── Screenshots ────────────────────────────────────────────────────────── */
.screenshots {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 20px;
}
.screenshot {
  border: 1px solid var(--border); border-radius: var(--radius);
  overflow: hidden; background: var(--bg-mid);
}
.screenshot img { width: 100%; display: block; }
.screenshot-ph {
  aspect-ratio: 9/16; background: linear-gradient(160deg, var(--bg-mid), var(--bg-dark));
  display: flex; flex-direction: column; align-items: center; justify-content: center;
  gap: 10px; color: var(--muted); font-size: .8rem;
}
.screenshot-ph .ph-icon { font-size: 2.5rem; opacity: .35; }
.screenshot-landscape .screenshot-ph { aspect-ratio: 16/9; }
.screenshot-caption {
  padding: 10px 14px; font-size: .78rem; color: var(--muted);
  border-top: 1px solid var(--border);
}

/* ── Install page ───────────────────────────────────────────────────────── */
.install-hero {
  padding: 52px 0 40px;
  border-bottom: 1px solid var(--border); margin-bottom: 48px;
}
.install-hero h1 { font-size: clamp(1.6rem, 4vw, 2.4rem); font-weight: 800; margin-bottom: 10px; }
.install-hero p { color: var(--muted); font-size: 1rem; }
.platform-badge {
  display: inline-flex; align-items: center; gap: 7px;
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: 20px; padding: 4px 14px;
  font-size: .8rem; color: var(--muted); margin-bottom: 20px;
}

.download-card {
  background: linear-gradient(135deg, rgba(245,158,11,.12), rgba(245,158,11,.04));
  border: 1px solid rgba(245,158,11,.3);
  border-radius: var(--radius); padding: 24px 28px;
  display: flex; align-items: center; justify-content: space-between;
  flex-wrap: wrap; gap: 16px; margin-bottom: 48px;
}
.download-card h3 { font-size: 1.05rem; margin-bottom: 4px; }
.download-card p { font-size: .82rem; color: var(--muted); }

.steps { display: flex; flex-direction: column; gap: 32px; }
.step { display: flex; gap: 20px; }
.step-num {
  flex-shrink: 0; width: 34px; height: 34px;
  background: var(--amber-dim); border: 1px solid rgba(245,158,11,.4);
  border-radius: 50%; display: flex; align-items: center; justify-content: center;
  font-size: .85rem; font-weight: 700; color: var(--amber);
}
.step-body { flex: 1; }
.step-body h3 { font-size: .95rem; margin-bottom: 6px; margin-top: 5px; }
.step-body p, .step-body li { font-size: .88rem; color: var(--muted); }
.step-body ul { padding-left: 18px; margin-top: 6px; }
.step-body li { margin-bottom: 4px; }

/* ── Code blocks ────────────────────────────────────────────────────────── */
pre {
  background: rgba(0,0,0,0.45); border: 1px solid var(--border);
  border-radius: 8px; padding: 14px 16px; margin: 10px 0;
  overflow-x: auto; font-size: .82rem; line-height: 1.55;
}
code {
  font-family: 'SF Mono', 'Consolas', monospace;
  color: #a5d6ff;
}
.inline-code {
  background: rgba(0,0,0,0.35); border: 1px solid var(--border);
  border-radius: 4px; padding: 1px 6px; font-size: .85em;
  color: #a5d6ff; font-family: 'SF Mono', 'Consolas', monospace;
}

/* ── Alert / info box ───────────────────────────────────────────────────── */
.info-box {
  background: rgba(245,158,11,.08); border-left: 3px solid var(--amber);
  border-radius: 0 8px 8px 0; padding: 12px 16px;
  font-size: .85rem; color: var(--muted); margin: 14px 0;
}
.info-box strong { color: var(--text); }

/* ── Licence page ───────────────────────────────────────────────────────── */
.licence-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 36px 40px;
}
.licence-card h2 { font-size: 1.3rem; margin-bottom: 16px; }
.licence-card p { color: var(--muted); margin-bottom: 14px; line-height: 1.7; }
.licence-card ul { padding-left: 20px; color: var(--muted); }
.licence-card li { margin-bottom: 8px; line-height: 1.6; }
.licence-card li strong { color: var(--text); }

/* ── Footer ─────────────────────────────────────────────────────────────── */
footer {
  border-top: 1px solid var(--border); margin-top: 80px;
  padding: 28px 24px; text-align: center;
  font-size: .78rem; color: var(--muted);
}
footer a { color: var(--muted); }
footer a:hover { color: var(--amber); }

/* ── Release notes ──────────────────────────────────────────────────────── */
.release {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 26px 30px; margin-bottom: 24px;
}
.release-head {
  display: flex; align-items: center; gap: 12px; flex-wrap: wrap;
  margin-bottom: 6px;
}
.release-ver {
  font-size: 1.4rem; font-weight: 800; color: var(--text);
}
.release-tag {
  font-size: .7rem; font-weight: 700; letter-spacing: .5px;
  text-transform: uppercase; padding: 3px 10px; border-radius: 20px;
}
.release-tag.latest { background: var(--amber-dim); color: var(--amber); border: 1px solid rgba(245,158,11,.35); }
.release-tag.prev   { background: var(--bg-card); color: var(--muted); border: 1px solid var(--border); }
.release-date { font-size: .8rem; color: var(--muted); margin-left: auto; }
.release h4 {
  font-size: .8rem; text-transform: uppercase; letter-spacing: .6px;
  color: var(--amber); margin: 20px 0 10px;
}
.release ul { list-style: none; padding: 0; }
.release li {
  font-size: .9rem; color: var(--muted); line-height: 1.6;
  padding-left: 24px; position: relative; margin-bottom: 8px;
}
.release li::before {
  content: '+'; position: absolute; left: 4px; top: 0;
  color: var(--green); font-weight: 700;
}
.release li.fix::before { content: '\2713'; color: var(--amber); }

/* ── Contact form ───────────────────────────────────────────────────────── */
.contact-card {
  background: var(--bg-card); border: 1px solid var(--border);
  border-radius: var(--radius); padding: 30px 32px; max-width: 560px;
}
.form-row { margin-bottom: 18px; }
.form-row label {
  display: block; font-size: .82rem; color: var(--muted);
  margin-bottom: 6px; font-weight: 600;
}
.form-row input, .form-row textarea {
  width: 100%; background: rgba(0,0,0,0.4); border: 1px solid var(--border);
  border-radius: 8px; color: var(--text); font-size: .92rem;
  padding: 11px 14px; outline: none; font-family: inherit;
  transition: border-color .2s;
}
.form-row input:focus, .form-row textarea:focus { border-color: var(--amber); }
.form-row textarea { resize: vertical; min-height: 130px; }
.hp-field { position: absolute; left: -9999px; opacity: 0; height: 0; width: 0; }
.contact-note {
  font-size: .8rem; color: var(--muted); margin-top: 16px; line-height: 1.6;
}

/* ── Donate ─────────────────────────────────────────────────────────────── */
.donate-card {
  background: linear-gradient(135deg, rgba(245,158,11,.12), rgba(245,158,11,.03));
  border: 1px solid rgba(245,158,11,.3);
  border-radius: var(--radius); padding: 32px 28px; text-align: center;
  max-width: 520px; margin: 0 auto;
}
.donate-icon { font-size: 2.2rem; margin-bottom: 10px; }
.donate-card h3 { font-size: 1.15rem; margin-bottom: 8px; }
.donate-card p { font-size: .9rem; color: var(--muted); margin-bottom: 22px; line-height: 1.6; }
.btn-donate {
  display: inline-flex; align-items: center; gap: 8px;
  background: #ffc439; color: #0a0f1e;
  border: none; border-radius: var(--radius);
  padding: 13px 30px; font-size: .95rem; font-weight: 700;
  cursor: pointer; font-family: inherit;
  transition: opacity .2s, transform .1s;
}
.btn-donate:hover { opacity: .9; }
.btn-donate:active { transform: scale(.97); }

/* ── Responsive ─────────────────────────────────────────────────────────── */
@media (max-width: 600px) {
  .page { padding: 0 16px 60px; }
  .hero { padding: 52px 16px 48px; }
  .download-card { flex-direction: column; }
  nav { padding: 0 16px; }
  .nav-links { gap: 2px; }
  .nav-links a { padding: 6px 8px; font-size: .78rem; }
  .licence-card { padding: 24px 20px; }
  .release { padding: 22px 20px; }
  .contact-card { padding: 24px 20px; }
}