:root {
  color-scheme: dark;
  --bg: #0b0d10;
  --panel: #12161b;
  --panel-2: #171c22;
  --line: #262d36;
  --text: #f2f5f7;
  --muted: #98a3ad;
  --accent: #7dd3fc;
  --accent-strong: #38bdf8;
  --good: #34d399;
  --danger: #fb7185;
  --radius: 16px;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at 50% -20%, #17202a 0, var(--bg) 42%);
  color: var(--text);
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}
a { color: inherit; text-decoration: none; }
button, input, textarea { font: inherit; }
button { cursor: pointer; }
svg { width: 20px; height: 20px; fill: none; stroke: currentColor; stroke-width: 1.8; stroke-linecap: round; stroke-linejoin: round; }

.topbar {
  position: sticky; top: 0; z-index: 20;
  height: 68px; padding: 0 clamp(18px, 4vw, 56px);
  display: flex; align-items: center; justify-content: space-between;
  background: rgba(11, 13, 16, .82); border-bottom: 1px solid rgba(255,255,255,.06);
  backdrop-filter: blur(16px);
}
.brand { font-weight: 750; letter-spacing: -.02em; }
.top-actions { display: flex; align-items: center; gap: 12px; }
.nav-link, .ghost-button, .icon-button {
  border: 1px solid var(--line); background: rgba(255,255,255,.02); color: var(--text);
  border-radius: 10px; min-height: 38px; padding: 0 14px; display: inline-flex; align-items: center; justify-content: center;
}
.icon-button { width: 40px; padding: 0; }
.nav-link:hover, .ghost-button:hover, .icon-button:hover { border-color: #3b4652; background: rgba(255,255,255,.045); }
.admin-name { color: var(--muted); font-size: .9rem; }

.page-shell, .admin-shell { width: min(1180px, calc(100% - 32px)); margin: 0 auto; }
.hero { min-height: 52vh; display: flex; flex-direction: column; align-items: center; justify-content: center; text-align: center; padding: 80px 0 52px; }
.hero h1 { font-size: clamp(2.6rem, 7vw, 5.8rem); letter-spacing: -.055em; margin: 12px 0 18px; line-height: .98; }
.hero p { color: var(--muted); max-width: 650px; font-size: clamp(1rem, 2vw, 1.15rem); line-height: 1.7; margin: 0 0 28px; }
.eyebrow { color: var(--accent); font-weight: 800; letter-spacing: .18em; font-size: .72rem; }
.section-block { padding: 36px 0 88px; scroll-margin-top: 88px; }
.section-heading, .panel-heading { display: flex; justify-content: space-between; align-items: flex-end; margin-bottom: 22px; }
h1, h2, h3 { letter-spacing: -.025em; }
h2 { margin: 5px 0 0; font-size: 1.65rem; }

.primary-button, .download-button {
  border: 0; border-radius: 11px; background: var(--text); color: #0a0d10; font-weight: 800;
  min-height: 42px; padding: 0 17px; display: inline-flex; align-items: center; justify-content: center; gap: 9px;
}
.primary-button:hover, .download-button:hover { opacity: .9; }
.primary-button.full { width: 100%; }
.primary-button.inline, .ghost-button.inline { margin-top: 18px; }
.download-grid { display: grid; grid-template-columns: repeat(auto-fit, minmax(280px, 1fr)); gap: 16px; }
.download-card, .panel, .auth-card, .admin-card {
  border: 1px solid var(--line); background: linear-gradient(180deg, rgba(255,255,255,.025), rgba(255,255,255,.01)), var(--panel);
  border-radius: var(--radius);
}
.download-card { padding: 22px; display: flex; flex-direction: column; min-height: 240px; }
.download-card h3 { margin: 20px 0 8px; font-size: 1.25rem; }
.download-card p { color: var(--muted); line-height: 1.55; margin: 0 0 18px; }
.card-topline, .status-line { display: flex; align-items: center; gap: 8px; }
.card-topline { justify-content: space-between; }
.version-badge { color: var(--accent); border: 1px solid #24485a; background: #0f2530; border-radius: 999px; padding: 5px 9px; font-size: .78rem; font-weight: 800; }
.file-size, .file-name, .muted { color: var(--muted); }
.file-name { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; font-size: .82rem; overflow-wrap: anywhere; margin-top: auto; padding: 15px 0; }
.download-button { align-self: flex-start; }
.empty-state { color: var(--muted); border: 1px dashed #303945; border-radius: 12px; padding: 24px; text-align: center; }
footer { padding: 30px; text-align: center; color: #63707c; font-size: .8rem; }

.center-shell { width: min(520px, calc(100% - 32px)); min-height: calc(100vh - 68px); margin: 0 auto; display: grid; place-items: center; padding: 36px 0; }
.auth-card { width: 100%; padding: 28px; }
.auth-card h1 { margin: 8px 0 8px; }
.auth-card.wide-card { width: min(720px, 100%); }
.form-stack { display: grid; gap: 16px; margin-top: 24px; }
label { display: grid; gap: 8px; color: #cfd6dc; font-size: .9rem; font-weight: 650; }
input, textarea {
  width: 100%; border: 1px solid var(--line); background: #0d1115; color: var(--text); border-radius: 10px;
  padding: 11px 12px; outline: none;
}
input:focus, textarea:focus { border-color: #456477; box-shadow: 0 0 0 3px rgba(56,189,248,.08); }
.alert { padding: 12px 14px; border-radius: 10px; margin: 15px 0; font-size: .9rem; }
.alert.error { color: #fecdd3; background: rgba(251,113,133,.08); border: 1px solid rgba(251,113,133,.25); }
.alert.success { color: #bbf7d0; background: rgba(52,211,153,.08); border: 1px solid rgba(52,211,153,.25); }

.admin-shell { padding: 42px 0 90px; }
.admin-shell.narrow { max-width: 850px; }
.admin-heading { margin-bottom: 26px; }
.admin-heading h1 { font-size: 2.2rem; margin: 6px 0 0; }
.panel { padding: 22px; margin-bottom: 18px; }
.form-grid { display: grid; grid-template-columns: 1fr 1fr; gap: 15px; }
.form-grid .wide { grid-column: 1 / -1; }
.check-row { display: flex; align-items: center; gap: 10px; }
.check-row input { width: 18px; height: 18px; accent-color: var(--accent-strong); }
.file-picker input { padding: 9px; }
.admin-list { display: grid; gap: 12px; }
.admin-card { padding: 18px; }
.admin-card-summary { display: flex; justify-content: space-between; gap: 22px; align-items: center; }
.admin-card h3 { margin: 9px 0 5px; }
.card-actions { display: flex; flex-wrap: wrap; gap: 8px; justify-content: flex-end; }
.status-pill { display: inline-flex; align-items: center; border-radius: 999px; padding: 5px 8px; font-size: .7rem; font-weight: 850; letter-spacing: .05em; }
.status-pill.public { color: #a7f3d0; background: rgba(52,211,153,.1); border: 1px solid rgba(52,211,153,.25); }
.status-pill.private { color: #cbd5e1; background: rgba(148,163,184,.08); border: 1px solid rgba(148,163,184,.17); }
.small { font-size: .82rem; }
.version-update { margin-top: 16px; border-top: 1px solid var(--line); padding-top: 14px; }
.version-update summary { color: #cfd7de; font-weight: 700; cursor: pointer; }
.form-grid.compact { margin-top: 16px; }
.radio-group { border: 1px solid var(--line); border-radius: 10px; padding: 13px 14px; display: flex; flex-wrap: wrap; gap: 15px; }
.radio-group legend { padding: 0 6px; color: var(--muted); }
.radio-group label { display: flex; align-items: center; gap: 8px; }
.radio-group input { width: auto; }
.danger-choice { color: #fda4af; }
.table-wrap { overflow-x: auto; }
table { width: 100%; border-collapse: collapse; font-size: .9rem; }
th, td { padding: 12px 10px; border-bottom: 1px solid var(--line); text-align: left; white-space: nowrap; }
th { color: var(--muted); font-size: .75rem; text-transform: uppercase; letter-spacing: .08em; }
.text-button { border: 0; background: transparent; color: var(--accent); padding: 5px; }
.text-button.danger { color: var(--danger); }
.back-link { display: inline-block; color: var(--muted); margin-bottom: 14px; }
.version-list { display: grid; gap: 10px; }
.version-row { border: 1px solid var(--line); border-radius: 12px; padding: 15px; display: flex; justify-content: space-between; gap: 18px; align-items: center; }
.version-row strong { display: block; margin: 10px 0 5px; overflow-wrap: anywhere; }
.copy-box { display: flex; gap: 9px; margin-top: 20px; }
.copy-box input { font-family: ui-monospace, SFMono-Regular, Menlo, monospace; }

@media (max-width: 760px) {
  .topbar { padding: 0 15px; }
  .brand { font-size: .94rem; }
  .admin-name { display: none; }
  .page-shell, .admin-shell { width: min(100% - 22px, 1180px); }
  .hero { min-height: 46vh; padding-top: 54px; }
  .form-grid { grid-template-columns: 1fr; }
  .form-grid .wide { grid-column: auto; }
  .admin-card-summary { align-items: stretch; flex-direction: column; }
  .card-actions { justify-content: flex-start; }
  .card-actions form, .card-actions .ghost-button { flex: 1 1 auto; }
  .card-actions form .ghost-button { width: 100%; }
  .radio-group { display: grid; }
  .copy-box { flex-direction: column; }
  .download-grid { grid-template-columns: 1fr; }
}

/* Minimal public home */
.public-home { max-width: 900px; }
.minimal-hero {
  min-height: 34vh;
  display: grid;
  place-items: center;
  text-align: center;
  padding: 52px 0 28px;
}
.minimal-hero h1 {
  margin: 0;
  font-size: clamp(2.35rem, 7vw, 4.8rem);
  line-height: 1;
  letter-spacing: -.055em;
}
.minimal-downloads {
  padding: 0 0 72px;
  scroll-margin-top: 86px;
}
.minimal-list { display: grid; gap: 10px; }
.minimal-file-card {
  min-height: 78px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  padding: 15px 16px 15px 18px;
  border: 1px solid var(--line);
  border-radius: 13px;
  background: rgba(255,255,255,.018);
}
.minimal-file-info { min-width: 0; }
.minimal-file-info h2 {
  margin: 0 0 5px;
  font-size: 1.02rem;
  font-weight: 720;
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}
.minimal-file-info span {
  color: var(--muted);
  font-size: .82rem;
}
.minimal-download-button {
  min-height: 38px;
  flex: 0 0 auto;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 7px;
  padding: 0 13px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: rgba(255,255,255,.025);
  font-size: .88rem;
  font-weight: 700;
}
.minimal-download-button:hover {
  border-color: #3b4652;
  background: rgba(255,255,255,.05);
}
.minimal-empty {
  text-align: center;
  color: var(--muted);
  font-size: .9rem;
  padding: 18px;
}

@media (max-width: 760px) {
  .minimal-hero { min-height: 29vh; padding: 38px 0 22px; }
  .minimal-file-card { min-height: 70px; padding: 13px 13px 13px 15px; }
  .minimal-download-button span { display: none; }
  .minimal-download-button { width: 40px; padding: 0; }
}

/* v0.0.4 branding */
.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
}
.brand-icon {
  width: 32px;
  height: 32px;
  border-radius: 8px;
  display: block;
  flex: 0 0 auto;
}
@media (max-width: 520px) {
  .brand { gap: 8px; }
  .brand-icon { width: 29px; height: 29px; border-radius: 7px; }
}

/* v0.0.5 upload feedback */
.upload-actions { display: flex; align-items: center; gap: 14px; flex-wrap: wrap; }
.upload-status { color: var(--muted); font-size: .88rem; }
.upload-status.success { color: var(--good); }
.upload-status.error { color: var(--danger); }
.upload-progress-wrap { display: flex; align-items: center; gap: 12px; margin-top: -4px; }
.upload-progress { flex: 1; height: 9px; overflow: hidden; border-radius: 999px; background: #0b0f13; border: 1px solid var(--line); }
.upload-progress-bar { width: 0%; height: 100%; background: var(--accent-strong); transition: width .12s linear; }
.upload-progress-text { width: 44px; color: var(--muted); font-size: .8rem; text-align: right; font-variant-numeric: tabular-nums; }
.primary-button:disabled { opacity: .6; cursor: wait; }


/* v0.0.6 - selected file metadata */
.selected-file-meta {
  display: block;
  margin-top: 8px;
  font-size: 0.82rem;
  color: var(--muted, #8fa1b5);
  overflow-wrap: anywhere;
}
.selected-file-meta.has-file {
  color: #b9d9ee;
}


/* v0.0.7 - lightweight visual grouping */
.minimal-groups { display: grid; gap: 30px; }
.minimal-group { display: grid; gap: 10px; }
.minimal-group-title {
  display: flex; align-items: center; justify-content: space-between; gap: 12px;
  padding: 0 4px; color: #c9d5e2; font-size: .78rem; font-weight: 800;
  letter-spacing: .11em; text-transform: uppercase;
}
.minimal-group-count {
  min-width: 24px; height: 22px; padding: 0 7px; display: inline-flex; align-items: center; justify-content: center;
  border: 1px solid var(--line); border-radius: 999px; color: var(--muted); font-size: .7rem; letter-spacing: 0;
}
.group-badge {
  display: inline-flex; align-items: center; min-height: 24px; padding: 0 9px;
  border: 1px solid var(--line); border-radius: 999px; color: var(--muted);
  background: rgba(255,255,255,.018); font-size: .72rem; font-weight: 700;
}
@media (max-width: 760px) { .minimal-groups { gap: 24px; } }