/* Untertitel-Ersteller — futuristic glassmorphism theme.
 * Palette: forest-green primary, neon teal/cyan accent, dark obsidian background.
 * Surfaces: thin 1px neon-tinted borders, glassmorphism via backdrop-filter blur.
 */

:root {
  /* Forest — primary greens */
  --forest: #0d5a3a;
  --forest-deep: #073826;
  --forest-soft: rgba(13, 90, 58, 0.55);

  /* Neon — teal / cyan accent + glow */
  --neon: #2dffe0;
  --neon-soft: rgba(45, 255, 224, 0.55);
  --neon-glow: rgba(45, 255, 224, 0.35);
  --neon-faint: rgba(45, 255, 224, 0.12);

  /* Glass surfaces */
  --glass: rgba(8, 22, 18, 0.55);
  --glass-strong: rgba(10, 30, 24, 0.72);
  --glass-line: rgba(45, 255, 224, 0.18);
  --glass-line-strong: rgba(45, 255, 224, 0.32);

  /* Neutrals */
  --bg: #050b09;
  --bg-soft: #0a1612;
  --fg: #e8fff6;
  --muted: #8fb8a8;
  --error: #ff6b8a;
}

* { box-sizing: border-box; }

html, body {
  margin: 0;
  padding: 0;
  min-height: 100vh;
  color: var(--fg);
  font-family: -apple-system, BlinkMacSystemFont, "Inter", "Segoe UI", system-ui, sans-serif;
  background:
    radial-gradient(900px 600px at 15% -10%, var(--forest-soft) 0%, transparent 55%),
    radial-gradient(1100px 700px at 110% 110%, var(--neon-faint) 0%, transparent 60%),
    radial-gradient(700px 500px at 50% 50%, rgba(7, 56, 38, 0.4) 0%, transparent 70%),
    var(--bg);
  background-attachment: fixed;
}

main.card {
  position: relative;
  max-width: 640px;
  margin: 56px auto;
  padding: 34px 38px 38px;
  background: var(--glass-strong);
  -webkit-backdrop-filter: blur(22px) saturate(150%);
  backdrop-filter: blur(22px) saturate(150%);
  border: 1px solid var(--glass-line);
  border-radius: 22px;
  box-shadow:
    0 0 0 1px var(--neon-faint) inset,
    0 30px 80px rgba(0, 0, 0, 0.55),
    0 0 40px var(--neon-faint);
}

/* Thin neon top accent line — purely decorative */
main.card::before {
  content: "";
  position: absolute;
  inset: 1px 1px auto 1px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--neon) 50%, transparent);
  opacity: 0.7;
  border-radius: 22px 22px 0 0;
  pointer-events: none;
}

h1 {
  margin: 0 0 6px;
  font-size: 1.6rem;
  font-weight: 600;
  letter-spacing: 0.015em;
  color: var(--fg);
  text-shadow: 0 0 18px var(--neon-glow);
}

.lead {
  color: var(--muted);
  margin-bottom: 28px;
  line-height: 1.5;
}

.field {
  display: block;
  margin: 18px 0;
}

.field > span,
.field > legend {
  display: block;
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--neon);
  margin-bottom: 8px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

input[type="file"],
select {
  width: 100%;
  padding: 11px 13px;
  border-radius: 12px;
  background: var(--glass);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  color: var(--fg);
  border: 1px solid var(--glass-line);
  font-size: 1rem;
  transition: border-color 140ms ease, box-shadow 140ms ease;
}

input[type="file"]:focus,
select:focus {
  outline: none;
  border-color: var(--neon);
  box-shadow: 0 0 0 1px var(--neon-soft), 0 0 18px var(--neon-faint);
}

fieldset.field {
  border: 1px solid var(--glass-line);
  border-radius: 14px;
  padding: 14px 16px 16px;
  margin: 18px 0;
}

.option {
  display: flex;
  align-items: center;
  gap: 10px;
  padding: 7px 0;
  cursor: pointer;
  color: var(--fg);
}

.option input[type="radio"] {
  appearance: none;
  -webkit-appearance: none;
  width: 16px;
  height: 16px;
  border: 1px solid var(--glass-line-strong);
  border-radius: 50%;
  background: transparent;
  position: relative;
  cursor: pointer;
  transition: border-color 140ms ease, box-shadow 140ms ease;
}

.option input[type="radio"]:checked {
  border-color: var(--neon);
  box-shadow: 0 0 0 4px var(--neon-faint), 0 0 14px var(--neon-glow);
}

.option input[type="radio"]:checked::after {
  content: "";
  position: absolute;
  inset: 3px;
  border-radius: 50%;
  background: var(--neon);
  box-shadow: 0 0 8px var(--neon);
}

.option strong { color: var(--fg); }

button {
  width: 100%;
  padding: 13px 16px;
  font-size: 1rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  border-radius: 12px;
  border: 1px solid var(--neon-soft);
  cursor: pointer;
  background: linear-gradient(135deg, var(--forest) 0%, var(--forest-deep) 100%);
  color: var(--neon);
  box-shadow: 0 0 0 1px var(--neon-faint) inset, 0 0 24px var(--neon-faint);
  transition: transform 120ms ease, box-shadow 160ms ease, filter 160ms ease;
  margin-top: 10px;
}

button:hover {
  filter: brightness(1.15);
  box-shadow: 0 0 0 1px var(--neon) inset, 0 0 36px var(--neon-glow);
}

button:active { transform: translateY(1px); }

button[disabled] {
  background: var(--glass);
  color: var(--muted);
  border-color: var(--glass-line);
  box-shadow: none;
  cursor: progress;
  filter: none;
}

#status {
  margin-top: 30px;
  padding-top: 24px;
  border-top: 1px solid var(--glass-line);
}

progress {
  width: 100%;
  height: 4px;
  border-radius: 999px;
  overflow: hidden;
  margin: 10px 0 18px;
  border: 1px solid var(--glass-line);
  background: var(--glass);
}

progress[value]::-webkit-progress-bar {
  background: var(--glass);
  border-radius: 999px;
}

progress[value]::-webkit-progress-value {
  background: linear-gradient(90deg, var(--forest) 0%, var(--neon) 100%);
  box-shadow: 0 0 10px var(--neon-glow);
  border-radius: 999px;
}

progress[value]::-moz-progress-bar {
  background: linear-gradient(90deg, var(--forest) 0%, var(--neon) 100%);
  box-shadow: 0 0 10px var(--neon-glow);
  border-radius: 999px;
}

.download {
  display: inline-block;
  padding: 10px 16px;
  border-radius: 10px;
  background: transparent;
  color: var(--neon);
  font-weight: 600;
  letter-spacing: 0.03em;
  text-decoration: none;
  border: 1px solid var(--neon-soft);
  box-shadow: 0 0 18px var(--neon-faint);
  transition: box-shadow 160ms ease, filter 160ms ease;
}

.download:hover {
  filter: brightness(1.2);
  box-shadow: 0 0 28px var(--neon-glow);
}

.error {
  background: rgba(255, 107, 138, 0.08);
  border: 1px solid rgba(255, 107, 138, 0.32);
  color: var(--error);
  padding: 10px 12px;
  border-radius: 10px;
  white-space: pre-wrap;
  font-size: 0.92rem;
}