@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@400;600;700&family=JetBrains+Mono:wght@400;600&display=swap');

:root {
  color-scheme: dark;
  --gray-900: #111111;
  --gray-850: #171717;
  --gray-800: #1e1e1e;
  --gray-700: #252526;
  --gray-600: #333333;
  --gray-500: #444444;
  --green: #1f7a6d;
  --green-strong: #155d53;
  --green-soft: #16332c;
  --green-border: #2f9c8a;
  --bg: var(--gray-800);
  --bg-accent: var(--gray-800);
  --card: var(--gray-700);
  --ink: #dddddd;
  --muted: #888888;
  --border: var(--green-border);
  --accent: var(--green);
  --accent-strong: var(--green-strong);
  --accent-soft: var(--green-soft);
  --shadow: rgba(0, 0, 0, 0.45);
  --danger: #c42b1c;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  color: var(--ink);
  background: var(--bg);
  min-height: 100vh;
}

.page {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 32px 16px 48px;
}

.app {
  width: min(920px, 100%);
  display: grid;
  gap: 20px;
}

.app-header {
  display: grid;
  gap: 8px;
  background: var(--gray-700);
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 16px 20px;
}

.header-top {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 16px;
  flex-wrap: wrap;
}

.brand {
  display: flex;
  align-items: center;
  gap: 16px;
}

.brand-mark {
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--gray-900);
  color: #fff;
  display: grid;
  place-items: center;
  font-weight: 700;
  font-size: 20px;
  letter-spacing: 1px;
  box-shadow: 0 16px 30px rgba(0, 0, 0, 0.45);
  border: 1px solid var(--border);
}

.brand-icon {
  width: 32px;
  height: 32px;
  object-fit: contain;
}

.brand-title {
  font-size: 26px;
  font-weight: 700;
}

.brand-subtitle {
  font-size: 13px;
  color: var(--muted);
  letter-spacing: 0.3px;
  text-transform: uppercase;
}

.header-note {
  color: var(--muted);
  max-width: 600px;
}

.display-lang-control {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 12px;
  color: var(--muted);
}

.ui-lang-select {
  min-width: 110px;
  padding: 6px 8px;
  border-radius: 8px;
  border: 1px solid var(--border);
  background: var(--gray-900);
  color: var(--ink);
}

.social-link {
  width: 34px;
  height: 34px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 9px;
  border: 1px solid var(--border);
  background: var(--gray-900);
  transition: transform 0.15s ease, box-shadow 0.2s ease, border-color 0.2s ease;
}

.social-link:hover {
  transform: translateY(-1px);
  box-shadow: 0 8px 16px rgba(0, 0, 0, 0.35);
  border-color: var(--accent);
}

.social-link img {
  width: 18px;
  height: 18px;
  object-fit: contain;
}

.footer-lang-control {
  color: var(--muted);
  background: var(--gray-900);
  border: 1px solid var(--border);
  border-radius: 9px;
  padding: 4px 8px;
}

.footer-icon {
  width: 18px;
  height: 18px;
  object-fit: contain;
}

.footer-label {
  font-size: 12px;
}

.card {
  background: var(--card);
  border-radius: 18px;
  padding: 24px;
  box-shadow: 0 24px 45px var(--shadow);
  border: 1px solid var(--border);
  display: grid;
  gap: 24px;
}

.step-title {
  font-weight: 600;
  color: var(--ink);
  margin-bottom: 10px;
}

.drop-zone {
  border: 1px dashed var(--border);
  border-radius: 14px;
  padding: 16px;
  background: var(--gray-850);
  transition: border 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.drop-zone.dragover {
  border-color: var(--accent);
  background: var(--gray-700);
  box-shadow: 0 0 0 3px rgba(31, 122, 109, 0.25);
}

.drop-zone.disabled {
  opacity: 0.6;
  pointer-events: none;
}

.file-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
}

.file-name {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--gray-900);
  color: var(--ink);
  font-size: 14px;
}

.drop-hint {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
}

.lang-controls {
  display: grid;
  gap: 12px;
}

.lang-search {
  width: 100%;
  padding: 12px 14px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--gray-900);
  color: var(--ink);
  font-size: 14px;
}

.lang-select {
  width: 100%;
  border-radius: 12px;
  border: 1px solid var(--border);
  padding: 6px;
  font-size: 14px;
  font-family: "Space Grotesk", "Segoe UI", sans-serif;
  background: var(--gray-900);
  color: var(--ink);
  height: 190px;
}

.lang-select.small {
  height: auto;
  min-height: 46px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.inline-controls {
  display: grid;
  grid-template-columns: 1fr auto;
  align-items: center;
  gap: 10px;
  margin-bottom: 10px;
}

.num-input {
  width: 90px;
  padding: 10px 12px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: var(--gray-900);
  color: var(--ink);
}

.model-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 12px;
}

.cache-list {
  margin-top: 10px;
  display: grid;
  gap: 8px;
}

.cache-item {
  font-size: 13px;
  color: var(--muted);
}

.status-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.status-title {
  font-size: 13px;
  color: var(--muted);
}

.status {
  display: grid;
  gap: 10px;
}

.status-text {
  color: var(--muted);
}

.task-status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.task-status-row .status-text {
  flex: 1;
  min-width: 180px;
}

.task-status-row .btn {
  margin-left: auto;
}

.progress {
  width: 100%;
  height: 12px;
  border-radius: 999px;
  background: var(--gray-600);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0;
  background: linear-gradient(90deg, var(--accent), #2f9c8a);
  transition: width 0.2s ease;
}

.guide-grid {
  display: grid;
  gap: 12px;
}

.guide-item {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 14px;
  background: var(--gray-850);
}

.guide-item h3 {
  margin: 0 0 6px;
  font-size: 15px;
}

.guide-item p {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
}

.btn {
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 12px 20px;
  font-weight: 600;
  cursor: pointer;
  background: var(--accent);
  color: #ffffff;
  transition: transform 0.15s ease, box-shadow 0.2s ease, border 0.2s ease, background 0.2s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 10px 20px rgba(0, 0, 0, 0.35);
}

.btn.primary {
  background: var(--accent);
  color: #fff;
  border-color: var(--border);
}

.btn.primary:hover {
  background: var(--accent-strong);
  border-color: var(--border);
}

.btn.ghost {
  background: var(--gray-700);
  color: var(--ink);
}

.btn:disabled {
  cursor: not-allowed;
  opacity: 0.55;
  transform: none;
  box-shadow: none;
}

.footer {
  font-size: 12px;
  display: grid;
  grid-template-columns: 1fr auto 1fr;
  align-items: center;
  gap: 10px;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--gray-700);
  color: var(--muted);
}

.footer-left {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-self: start;
}

.footer-center {
  justify-self: center;
  text-align: center;
}

.footer-right {
  display: flex;
  align-items: center;
  gap: 10px;
  justify-self: end;
}

.footer a {
  color: inherit;
  text-decoration: none;
}

.footer a:hover {
  color: var(--ink);
}

.modal {
  position: fixed;
  inset: 0;
  background: rgba(10, 10, 10, 0.45);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 20px;
  z-index: 10;
}

.modal.hidden {
  display: none;
}

.modal-card {
  background: var(--card);
  border-radius: 18px;
  padding: 24px;
  width: min(420px, 100%);
  box-shadow: 0 30px 60px rgba(0, 0, 0, 0.25);
  display: grid;
  gap: 16px;
  text-align: center;
  border: 1px solid var(--border);
}

.modal-title {
  font-size: 20px;
  font-weight: 700;
}

.modal-message {
  color: var(--muted);
  white-space: pre-line;
}

@media (max-width: 720px) {
  .header-top {
    align-items: flex-start;
  }

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

  .grid-2 {
    grid-template-columns: 1fr;
  }

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

  .status-grid {
    grid-template-columns: 1fr;
  }

  .task-status-row {
    flex-direction: column;
    align-items: stretch;
  }

  .task-status-row .btn {
    width: 100%;
    margin-left: 0;
  }

  .footer {
    grid-template-columns: 1fr;
    gap: 12px;
  }

  .footer-left,
  .footer-center,
  .footer-right {
    justify-self: center;
  }
}