:root {
  --color-primary: #e11d48;
  --color-primary-dark: #be123c;
  --color-bg: #0f0f0f;
  --color-elevated: #181818;
  --color-panel: #212121;
  --color-text: #f1f5f9;
  --color-muted: #aaaaaa;
  --color-border: #303030;
  --radius: 12px;
  --font: "Outfit", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  color: var(--color-text);
  background:
    radial-gradient(1200px 500px at 10% -10%, rgba(225, 29, 72, 0.18), transparent 55%),
    radial-gradient(900px 400px at 100% 0%, rgba(244, 63, 94, 0.1), transparent 50%),
    var(--color-bg);
  -webkit-font-smoothing: antialiased;
}

.bg-glow {
  pointer-events: none;
  position: fixed;
  inset: auto -20% -30% auto;
  width: 60vw;
  height: 60vw;
  background: radial-gradient(circle, rgba(225, 29, 72, 0.08), transparent 65%);
  filter: blur(20px);
}

.top {
  max-width: 760px;
  margin: 0 auto;
  padding: 28px 20px 0;
}

.brand {
  display: flex;
  align-items: center;
  gap: 12px;
}

.brand-mark {
  width: 40px;
  height: 40px;
  border-radius: 10px;
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, var(--color-primary), #fb7185);
  font-weight: 700;
  font-size: 18px;
}

.brand-name {
  margin: 0;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.brand-tag {
  margin: 2px 0 0;
  color: var(--color-muted);
  font-size: 12px;
}

.shell {
  max-width: 760px;
  margin: 0 auto;
  padding: 36px 20px 64px;
}

.hero h1 {
  margin: 0 0 10px;
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  line-height: 1.15;
  letter-spacing: -0.03em;
}

.lede {
  margin: 0 0 28px;
  color: var(--color-muted);
  font-size: 1.05rem;
  max-width: 34rem;
}

.panel {
  background: color-mix(in srgb, var(--color-panel) 92%, black);
  border: 1px solid var(--color-border);
  border-radius: 18px;
  padding: 22px;
  box-shadow: 0 20px 50px rgba(0, 0, 0, 0.35);
}

.source-tabs {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
  margin-bottom: 16px;
}

.source-tab {
  width: 100%;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--color-border);
  background: var(--color-elevated);
  color: var(--color-muted);
  font: inherit;
  font-weight: 600;
  cursor: pointer;
}

.source-tab.active {
  color: white;
  border-color: var(--color-primary);
  background: rgba(225, 29, 72, 0.2);
}

.source-panel {
  margin-bottom: 8px;
}

.hint {
  margin: -8px 0 16px;
  color: var(--color-muted);
  font-size: 12px;
}

.template-preview {
  margin: -4px 0 16px;
  padding: 10px;
  border-radius: 12px;
  border: 1px solid var(--color-border);
  background: #111;
  display: flex;
  justify-content: center;
}

.template-preview img {
  max-height: 180px;
  width: auto;
  object-fit: contain;
}

.field {
  display: grid;
  gap: 8px;
  margin-bottom: 16px;
}

.field span {
  font-size: 13px;
  color: var(--color-muted);
  font-weight: 500;
}

input[type="url"],
input[type="number"],
input[type="file"] {
  width: 100%;
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-elevated);
  color: var(--color-text);
  font: inherit;
  outline: none;
  transition: border-color 0.15s ease;
}

input[type="file"] {
  padding: 10px 12px;
}

input:focus {
  border-color: var(--color-primary);
}

.row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 16px;
  align-items: end;
  margin-bottom: 18px;
}

.row.trio {
  grid-template-columns: 1fr 1fr;
}

.mode-field {
  border: none;
  margin: 0 0 18px;
  padding: 0;
}

.mode-field legend {
  font-size: 13px;
  color: var(--color-muted);
  font-weight: 500;
  margin-bottom: 8px;
  padding: 0;
}

.mode-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

.mode-row.caption-grid {
  grid-template-columns: 1fr 1fr 1fr;
}

.mode-row.frame-grid {
  grid-template-columns: 1fr 1fr 1fr;
}

.mode-card {
  display: grid;
  gap: 4px;
  padding: 12px 14px;
  border-radius: var(--radius);
  border: 1px solid var(--color-border);
  background: var(--color-elevated);
  cursor: pointer;
  user-select: none;
  transition: border-color 0.15s ease, background 0.15s ease;
}

.mode-card input {
  position: absolute;
  opacity: 0;
  pointer-events: none;
}

.mode-card:has(input:checked) {
  border-color: var(--color-primary);
  background: rgba(225, 29, 72, 0.12);
}

.mode-title {
  font-weight: 600;
  font-size: 14px;
}

.mode-desc {
  color: var(--color-muted);
  font-size: 12px;
}

.toggles {
  display: grid;
  gap: 10px;
  margin-bottom: 18px;
}

.check {
  display: flex;
  align-items: center;
  gap: 8px;
  color: var(--color-muted);
  font-size: 14px;
  user-select: none;
}

button[type="submit"],
.btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
  padding: 13px 18px;
  border: none;
  border-radius: var(--radius);
  background: var(--color-primary);
  color: white;
  font: inherit;
  font-weight: 600;
  cursor: pointer;
  text-decoration: none;
  transition: background-color 0.15s ease, transform 0.1s ease;
}

button[type="submit"]:hover:not(:disabled),
.btn-secondary:hover {
  background: var(--color-primary-dark);
}

button[type="submit"]:disabled {
  opacity: 0.6;
  cursor: not-allowed;
}

.btn-secondary {
  width: auto;
  padding: 10px 14px;
  font-size: 14px;
  background: transparent;
  border: 1px solid var(--color-border);
}

.btn-secondary:hover {
  background: var(--color-elevated);
  border-color: var(--color-primary);
}

.status,
.result {
  margin-top: 20px;
  padding-top: 18px;
  border-top: 1px solid var(--color-border);
}

.status-head,
.result-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

#status-label {
  font-weight: 600;
  text-transform: capitalize;
}

.dot {
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--color-primary);
  box-shadow: 0 0 0 0 rgba(225, 29, 72, 0.5);
  animation: pulse 1.4s ease infinite;
}

@keyframes pulse {
  0% {
    box-shadow: 0 0 0 0 rgba(225, 29, 72, 0.45);
  }
  70% {
    box-shadow: 0 0 0 10px rgba(225, 29, 72, 0);
  }
  100% {
    box-shadow: 0 0 0 0 rgba(225, 29, 72, 0);
  }
}

#status-message {
  margin: 8px 0 14px;
  color: var(--color-muted);
  font-size: 14px;
}

.bar {
  height: 6px;
  border-radius: 999px;
  background: #2a2a2a;
  overflow: hidden;
}

#bar-fill {
  height: 100%;
  width: 12%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--color-primary), #fb7185);
  transition: width 0.35s ease;
}

.result-title {
  margin: 0;
  font-weight: 600;
}

.result-meta {
  margin: 4px 0 0;
  color: var(--color-muted);
  font-size: 13px;
}

.clip-list {
  list-style: none;
  margin: 16px 0 0;
  padding: 0;
  display: grid;
  gap: 8px;
}

.clip-list li {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 10px 12px;
  border-radius: 10px;
  background: var(--color-elevated);
  border: 1px solid var(--color-border);
  font-size: 14px;
}

.clip-main {
  display: grid;
  gap: 2px;
  min-width: 0;
}

.clip-name {
  font-weight: 500;
}

.clip-reason {
  color: var(--color-muted);
  font-size: 12px;
}

.clip-list a {
  color: #fda4af;
  text-decoration: none;
  font-weight: 500;
  flex-shrink: 0;
}

.clip-list a:hover {
  text-decoration: underline;
}

.error {
  margin: 16px 0 0;
  padding: 12px 14px;
  border-radius: 10px;
  background: rgba(225, 29, 72, 0.12);
  border: 1px solid rgba(225, 29, 72, 0.35);
  color: #fecdd3;
  font-size: 14px;
}

.foot {
  max-width: 760px;
  margin: 0 auto;
  padding: 0 20px 40px;
  color: var(--color-muted);
  font-size: 12px;
}

@media (max-width: 640px) {
  .row,
  .row.trio,
  .mode-row,
  .mode-row.caption-grid,
  .mode-row.frame-grid {
    grid-template-columns: 1fr;
  }

  .result-head {
    flex-direction: column;
    align-items: stretch;
  }

  .btn-secondary {
    width: 100%;
  }
}