:root {
  --bg: #050815;
  --bg-elevated: #0b1020;
  --accent: #4f7cff;
  --accent-soft: #4f7cff33;
  --accent-strong: #7b5cff;
  --text-main: #f9fafb;
  --text-muted: #9ca3af;
  --border-subtle: #20263a;
  --danger: #f97373;
  --success: #34d399;
  --radius-xl: 18px;
  --radius-2xl: 24px;
  --shadow-soft: 0 18px 45px rgba(15,23,42,0.65);
}
*,
*::before,
*::after {
  box-sizing: border-box;
}
body {
  margin: 0;
  padding: 0;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "SF Pro Text", "Inter", sans-serif;
  background: radial-gradient(circle at top left, #1e293b 0, #020617 55%, #000 100%);
  color: var(--text-main);
}
.page-shell {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}
.page-inner {
  width: 100%;
  max-width: 1120px;
  margin: 0 auto;
  padding: 28px 20px 40px;
}
.header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  margin-bottom: 28px;
}
.brand {
  display: flex;
  align-items: center;
  gap: 10px;
}
.brand-logo {
  width: 32px;
  height: 32px;
  border-radius: 999px;
  background: radial-gradient(circle at 30% 20%, #a5b4fc 0, #4f46e5 35%, #1d4ed8 70%, #0b1120 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  box-shadow: 0 0 40px rgba(59,130,246,0.55);
}
.brand-logo span {
  font-weight: 700;
  font-size: 18px;
}
.brand-text-title {
  font-weight: 600;
  font-size: 18px;
}
.brand-text-sub {
  font-size: 12px;
  color: var(--text-muted);
}
.nav-links {
  display: flex;
  gap: 14px;
  align-items: center;
  font-size: 13px;
}
.nav-links a {
  color: var(--text-muted);
  text-decoration: none;
  padding: 6px 10px;
  border-radius: 999px;
  border: 1px solid transparent;
}
.nav-links a:hover {
  color: var(--text-main);
}
.nav-links a.nav-primary {
  border-color: var(--accent-soft);
  background: linear-gradient(120deg, rgba(79,124,255,0.12), rgba(123,92,255,0.18));
}
.hero {
  display: grid;
  grid-template-columns: minmax(0, 3fr) minmax(0, 2.5fr);
  gap: 26px;
  align-items: center;
  margin-bottom: 32px;
}
.hero-title {
  font-size: 32px;
  line-height: 1.15;
  margin-bottom: 14px;
}
.hero-sub {
  font-size: 14px;
  color: var(--text-muted);
  max-width: 420px;
}
.hero-pill {
  display: inline-flex;
  align-items: center;
  gap: 6px;
  padding: 5px 10px;
  border-radius: 999px;
  background: radial-gradient(circle at left, #4f46e5 0, transparent 60%),
              radial-gradient(circle at right, #0ea5e9 0, transparent 55%);
  font-size: 11px;
  color: #e5e7eb;
  margin-bottom: 12px;
}
.hero-badge-dot {
  width: 7px;
  height: 7px;
  border-radius: 999px;
  background: #4ade80;
  box-shadow: 0 0 0 4px rgba(74,222,128,0.35);
}
.hero-metrics {
  display: flex;
  flex-wrap: wrap;
  gap: 16px;
  margin-top: 18px;
}
.metric {
  padding: 10px 12px;
  border-radius: 999px;
  border: 1px solid var(--border-subtle);
  font-size: 11px;
  color: var(--text-muted);
}
.metric strong {
  color: var(--text-main);
}
.hero-card {
  background: radial-gradient(circle at top left, #1e3a8a 0, #020617 55%, #020617 100%);
  border-radius: 26px;
  padding: 18px 18px 16px;
  border: 1px solid rgba(56,189,248,0.18);
  box-shadow: var(--shadow-soft);
  position: relative;
  overflow: hidden;
}
.hero-card::before {
  content: "";
  position: absolute;
  inset: -20%;
  background:
    radial-gradient(circle at top right, rgba(56,189,248,0.26) 0, transparent 55%),
    radial-gradient(circle at bottom left, rgba(129,140,248,0.22) 0, transparent 55%);
  opacity: 0.7;
  pointer-events: none;
}
.hero-card-inner {
  position: relative;
  z-index: 1;
}
.hero-card-title {
  font-size: 15px;
  font-weight: 500;
  margin-bottom: 6px;
}
.hero-card-sub {
  font-size: 12px;
  color: var(--text-muted);
  margin-bottom: 18px;
}
.hero-card-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.hero-card-tag {
  font-size: 11px;
  color: #e5e7eb;
  padding: 5px 9px;
  border-radius: 999px;
  border: 1px solid rgba(148,163,184,0.6);
  background: rgba(15,23,42,0.7);
}
.hero-card-float {
  position: absolute;
  right: 14px;
  top: 18px;
  font-size: 11px;
  padding: 6px 9px;
  border-radius: 999px;
  background: rgba(15,23,42,0.85);
  border: 1px solid rgba(148,163,184,0.4);
  color: var(--text-muted);
}
.hero-card-float strong {
  color: var(--success);
}
.tools-section {
  margin-bottom: 26px;
}
.tools-header {
  display: flex;
  justify-content: space-between;
  align-items: baseline;
  gap: 12px;
  margin-bottom: 14px;
}
.tools-title {
  font-size: 16px;
  font-weight: 500;
}
.tools-sub {
  font-size: 12px;
  color: var(--text-muted);
}
.tools-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(210px, 1fr));
  gap: 14px;
}
.tool-card {
  background: radial-gradient(circle at top left, rgba(79,70,229,0.26), rgba(15,23,42,0.96));
  border-radius: var(--radius-xl);
  border: 1px solid var(--border-subtle);
  padding: 12px 12px 10px;
  display: flex;
  flex-direction: column;
  gap: 6px;
  text-decoration: none;
  color: var(--text-main);
  transition: transform 0.16s ease-out, box-shadow 0.16s ease-out, border-color 0.16s ease-out;
}
.tool-card:hover {
  transform: translateY(-2px);
  border-color: rgba(96,165,250,0.8);
  box-shadow: 0 16px 40px rgba(15,23,42,0.9);
}
.tool-label {
  font-size: 11px;
  color: #93c5fd;
}
.tool-name {
  font-size: 14px;
  font-weight: 500;
}
.tool-desc {
  font-size: 11px;
  color: var(--text-muted);
}
.tool-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  font-size: 10px;
  color: var(--text-muted);
}
.tool-chip {
  padding: 4px 7px;
  border-radius: 999px;
  background: rgba(15,23,42,0.9);
  border: 1px solid rgba(148,163,184,0.5);
}
.footer {
  margin-top: auto;
  padding: 16px 20px 22px;
  font-size: 11px;
  color: var(--text-muted);
  border-top: 1px solid rgba(15,23,42,0.85);
}
.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  justify-content: space-between;
  gap: 8px;
  flex-wrap: wrap;
}
.footer a {
  color: #93c5fd;
  text-decoration: none;
}
.main-card {
  background: radial-gradient(circle at top left, rgba(79,70,229,0.28), rgba(15,23,42,0.96));
  border-radius: 26px;
  padding: 18px 18px 16px;
  border: 1px solid rgba(148,163,184,0.45);
  box-shadow: var(--shadow-soft);
  margin-top: 10px;
}
.main-card-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
}
.main-card-title {
  font-size: 18px;
  font-weight: 500;
}
.main-card-sub {
  font-size: 12px;
  color: var(--text-muted);
}
.badge-pill {
  font-size: 10px;
  padding: 4px 8px;
  border-radius: 999px;
  background: rgba(15,23,42,0.9);
  border: 1px solid rgba(148,163,184,0.6);
}
.form-group {
  margin-bottom: 12px;
  font-size: 13px;
}
.label {
  display: block;
  margin-bottom: 6px;
}
.input-file-wrap {
  padding: 12px 12px;
  border-radius: 16px;
  border: 1px dashed rgba(148,163,184,0.6);
  background: rgba(15,23,42,0.7);
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
}
.input-file-wrap input[type="file"] {
  font-size: 12px;
  color: var(--text-muted);
}
.options-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px 18px;
  font-size: 12px;
  color: var(--text-muted);
}
.options-row label {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}
button.primary-btn {
  width: 100%;
  border: none;
  border-radius: 999px;
  padding: 12px 18px;
  font-size: 14px;
  font-weight: 500;
  color: #e5e7eb;
  cursor: pointer;
  background-image: linear-gradient(90deg, #4f46e5, #3b82f6, #22c1c3);
  background-size: 200% 100%;
  box-shadow: 0 16px 40px rgba(37,99,235,0.7);
  transition: background-position 0.18s ease-out, transform 0.12s ease-out, box-shadow 0.18s ease-out;
}
button.primary-btn:hover {
  background-position: 100% 0;
  transform: translateY(-1px);
  box-shadow: 0 20px 50px rgba(37,99,235,0.8);
}
button.primary-btn:disabled {
  opacity: 0.55;
  cursor: default;
  box-shadow: none;
}
.status-bar {
  margin-top: 12px;
  padding: 9px 11px;
  border-radius: 12px;
  font-size: 11px;
  background: rgba(15,23,42,0.9);
  border: 1px solid rgba(148,163,184,0.35);
  color: var(--text-muted);
}
.status-bar.is-error {
  border-color: rgba(248,113,113,0.8);
  color: #fecaca;
  background: rgba(127,29,29,0.7);
}
.status-bar.is-success {
  border-color: rgba(52,211,153,0.9);
  color: #bbf7d0;
  background: rgba(6,95,70,0.7);
}
.hint {
  font-size: 11px;
  color: var(--text-muted);
  margin-top: 6px;
}
@media (max-width: 860px) {
  .hero {
    grid-template-columns: minmax(0,1fr);
  }
  .main-card {
    margin-top: 14px;
  }
}
@media (max-width: 640px) {
  .page-inner {
    padding: 18px 14px 26px;
  }
  .hero-title {
    font-size: 24px;
  }
  .header {
    flex-direction: column;
    align-items: flex-start;
  }
  .tools-grid {
    grid-template-columns: minmax(0, 1fr);
  }
}