:root {
  --bg: #050711;
  --bg-elevated: #0d1020;
  --accent: #4f46e5;
  --accent-soft: rgba(79, 70, 229, 0.12);
  --border-subtle: rgba(255, 255, 255, 0.04);
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --danger: #f97373;
  --success: #22c55e;
  --radius-lg: 16px;
  --radius-md: 12px;
  --radius-sm: 8px;
  --shadow-soft: 0 18px 45px rgba(0, 0, 0, 0.6);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", sans-serif;
  background: radial-gradient(circle at top, #1f2937 0, #050711 55%);
  color: var(--text-main);
  min-height: 100vh;
}

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

main {
  max-width: 900px;
  margin: 0 auto;
  padding: 32px 16px 48px;
}

.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.header-right {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.header-contact-link {
  font-size: 0.85rem;
  color: #e5e7eb;
  text-decoration: none;
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.6);
}

.header-contact-link:hover {
  background: rgba(148, 163, 184, 0.15);
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: #e5e7eb;
}

.logo span {
  color: var(--accent);
}

.badge {
  padding: 4px 10px;
  border-radius: 999px;
  font-size: 0.75rem;
  border: 1px solid var(--border-subtle);
  background: rgba(15, 23, 42, 0.9);
  display: inline-flex;
  align-items: center;
  gap: 6px;
  color: var(--text-muted);
}

.badge-dot {
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: #22c55e;
}

.hero {
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.95), rgba(17, 24, 39, 0.98));
  border-radius: var(--radius-lg);
  padding: 24px 20px;
  box-shadow: var(--shadow-soft);
  border: 1px solid var(--border-subtle);
  margin-bottom: 24px;
}

.hero-title {
  font-size: 1.75rem;
  margin: 0 0 8px;
}

.hero-subtitle {
  margin: 0;
  font-size: 0.95rem;
  color: var(--text-muted);
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 18px;
}

.hero-btn-primary {
  padding: 10px 16px;
  border-radius: 999px;
  border: none;
  background: var(--accent);
  color: white;
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.hero-btn-secondary {
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  background: rgba(15, 23, 42, 0.95);
  color: var(--text-muted);
  font-size: 0.9rem;
  display: inline-flex;
  align-items: center;
  gap: 8px;
  cursor: pointer;
}

.tools-section {
  margin-top: 24px;
}

.tools-grid-title {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  margin-bottom: 12px;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
  gap: 12px;
}

.tool-card {
  border-radius: var(--radius-md);
  padding: 12px 12px 14px;
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid var(--border-subtle);
  cursor: pointer;
  transition: transform 0.12s ease, box-shadow 0.12s ease, border-color 0.12s ease;
}

.tool-card:hover {
  transform: translateY(-2px);
  border-color: var(--accent-soft);
  box-shadow: 0 10px 30px rgba(15, 23, 42, 0.9);
}

.tool-name {
  font-size: 0.95rem;
  font-weight: 500;
  margin-bottom: 4px;
}

.tool-meta {
  font-size: 0.8rem;
  color: var(--text-muted);
}

/* Tool page */

.tool-wrapper {
  max-width: 720px;
  margin: 0 auto;
}

.tool-header {
  margin-bottom: 18px;
}

.tool-title {
  font-size: 1.6rem;
  margin: 0 0 6px;
}

.tool-subtitle {
  margin: 0;
  font-size: 0.9rem;
  color: var(--text-muted);
}

.tool-card-main {
  background: rgba(15, 23, 42, 0.98);
  border-radius: var(--radius-lg);
  padding: 18px 16px 16px;
  border: 1px solid var(--border-subtle);
  box-shadow: var(--shadow-soft);
}

.upload-area {
  border-radius: var(--radius-md);
  padding: 18px;
  border: 1px dashed rgba(148, 163, 184, 0.6);
  background: rgba(15, 23, 42, 0.9);
  text-align: center;
  cursor: pointer;
}

.upload-area:hover {
  border-color: var(--accent);
}

.upload-text {
  font-size: 0.9rem;
  color: var(--text-muted);
}

.file-name {
  font-size: 0.85rem;
  margin-top: 6px;
  color: #e5e7eb;
  word-break: break-all;
}

.tool-actions {
  margin-top: 16px;
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.btn {
  padding: 9px 16px;
  border-radius: 999px;
  border: none;
  font-size: 0.9rem;
  cursor: pointer;
  display: inline-flex;
  align-items: center;
  gap: 8px;
}

.btn-primary {
  background: var(--accent);
  color: white;
}

.btn-muted {
  background: rgba(15, 23, 42, 0.95);
  border: 1px solid var(--border-subtle);
  color: var(--text-muted);
}

.status-text {
  font-size: 0.85rem;
  color: var(--text-muted);
}

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

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

.progress {
  margin-top: 12px;
  height: 4px;
  width: 100%;
  border-radius: 999px;
  background: rgba(31, 41, 55, 0.9);
  overflow: hidden;
}

.progress-bar {
  height: 100%;
  width: 0;
  border-radius: 999px;
  background: linear-gradient(90deg, #4f46e5, #22c55e);
  transition: width 0.2s ease;
}

.footer {
  margin-top: 32px;
  font-size: 0.78rem;
  color: var(--text-muted);
  text-align: center;
  opacity: 0.7;
}

.footer-top {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.footer-brand {
  max-width: 420px;
}

.footer-logo {
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.9rem;
  color: #e5e7eb;
}

.footer-tagline {
  margin-top: 0.35rem;
  font-size: 0.8rem;
  color: #9ca3af;
}

.footer-links {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.8rem;
  color: #9ca3af;
}

.footer-links a {
  color: #d1d5db;
  text-decoration: none;
}

.footer-links a:hover {
  text-decoration: underline;
}

.footer-meta {
  margin-top: 0.75rem;
  font-size: 0.75rem;
  color: #6b7280;
}

@media (max-width: 640px) {
  .hero {
    padding: 18px 14px;
  }

  .hero-title {
    font-size: 1.4rem;
  }

  main {
    padding-inline: 12px;
  }
}