:root {
  --fs-bg: #0a0c10;
  --fs-panel: #151a24;
  --fs-text: #f2f4f8;
  --fs-muted: #8b95a8;
  --fs-line: rgba(255, 255, 255, 0.1);
  --fs-accent: #3d8bfd;
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", system-ui, sans-serif;
  color: var(--fs-text);
  background:
    radial-gradient(900px 420px at 80% -10%, rgba(61, 139, 253, 0.2) 0%, transparent 55%),
    radial-gradient(700px 380px at 5% 0%, rgba(40, 80, 140, 0.3) 0%, var(--fs-bg) 60%);
}

.fs-page {
  max-width: 760px;
  margin: 0 auto;
  padding: 2rem 1.25rem 4rem;
}

.fs-hero h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.8rem, 4vw, 2.5rem);
}

.fs-hero p,
.fs-muted {
  color: var(--fs-muted);
  line-height: 1.5;
}

.fs-card {
  background: color-mix(in srgb, var(--fs-panel) 94%, black);
  border: 1px solid var(--fs-line);
  border-radius: 16px;
  padding: 1.25rem 1.35rem;
  margin-top: 1rem;
}

.hidden { display: none !important; }

.fs-row {
  display: flex;
  gap: 0.75rem;
  flex-wrap: wrap;
  align-items: center;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.7rem 1rem;
  border-radius: 10px;
  border: 1px solid var(--fs-line);
  background: #1c2536;
  color: var(--fs-text);
  text-decoration: none;
  cursor: pointer;
  font: inherit;
}

.btn:disabled {
  opacity: 0.5;
  cursor: not-allowed;
}

.btn--primary {
  background: linear-gradient(135deg, #3d8bfd, #2563eb);
  border-color: transparent;
  font-weight: 600;
}

.btn--danger {
  background: #3a1a22;
  border-color: rgba(255, 77, 109, 0.35);
}

.fs-drop {
  display: flex;
  align-items: center;
  justify-content: center;
  min-height: 140px;
  padding: 1.25rem;
  border-radius: 14px;
  border: 2px dashed rgba(255, 255, 255, 0.18);
  background: #0b1018;
  cursor: pointer;
  text-align: center;
  color: var(--fs-muted);
}

.fs-drop.is-drag {
  border-color: var(--fs-accent);
  color: #fff;
  background: rgba(61, 139, 253, 0.08);
}

.fs-progress {
  margin-top: 0.85rem;
  height: 10px;
  border-radius: 999px;
  background: #0b1018;
  overflow: hidden;
  border: 1px solid var(--fs-line);
}

.fs-progress__bar {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, #3d8bfd, #22d3ee);
  transition: width 0.15s ease;
}

.fs-status {
  color: var(--fs-muted);
  font-size: 0.9rem;
}

.fs-list {
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.fs-item {
  padding: 0.9rem 1rem;
  border-radius: 12px;
  border: 1px solid var(--fs-line);
  background: #0b1018;
}

.fs-item__name {
  font-weight: 700;
  margin: 0 0 0.25rem;
  word-break: break-all;
}

.fs-item__meta {
  margin: 0 0 0.65rem;
  color: var(--fs-muted);
  font-size: 0.85rem;
}

.fs-code {
  display: block;
  margin: 0.4rem 0 0.65rem;
  padding: 0.65rem 0.75rem;
  border-radius: 10px;
  border: 1px solid var(--fs-line);
  background: #080c14;
  word-break: break-all;
  font-size: 0.8rem;
}

/* Download page */
.fs-dl-body {
  margin: 0;
  min-height: 100vh;
  font-family: "Segoe UI", system-ui, sans-serif;
  color: var(--fs-text);
  background:
    radial-gradient(800px 380px at 50% -20%, rgba(61, 139, 253, 0.22), transparent 60%),
    var(--fs-bg);
}

.fs-dl-page {
  max-width: 520px;
  margin: 0 auto;
  padding: 2rem 1rem 3rem;
}

.fs-dl-page h1 {
  margin: 0 0 0.4rem;
}

.fs-filename {
  font-size: 1.15rem;
  font-weight: 700;
  word-break: break-all;
  margin: 0 0 0.35rem;
}

.fs-warn {
  color: #ffb347;
  font-size: 0.9rem;
  line-height: 1.45;
}