:root {
  --bg: #0a0b0f;
  --panel: #111622;
  --panel-2: #161c2c;
  --border: rgba(255, 255, 255, 0.06);
  --text: #e9edf5;
  --muted: #9aa3b7;
  --accent: #7dd3fc;
  --accent-2: #a78bfa;
  --danger: #f87171;
  --radius: 14px;
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.35);
  --blur: saturate(1.4) blur(8px);
}

[data-theme="light"] {
  --bg: #f4f6fb;
  --panel: #ffffff;
  --panel-2: #f0f3fb;
  --border: rgba(0, 10, 40, 0.08);
  --text: #0b1020;
  --muted: #4a5568;
  --accent: #2563eb;
  --accent-2: #22d3ee;
  --danger: #ef4444;
  --shadow: 0 16px 40px rgba(15, 23, 42, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at 20% 20%, rgba(127, 90, 240, 0.15), transparent 35%),
              radial-gradient(circle at 80% 0%, rgba(34, 211, 238, 0.2), transparent 45%),
              var(--bg);
  color: var(--text);
  font-family: 'Space Grotesk', 'Inter', system-ui, -apple-system, sans-serif;
}

.app-shell {
  padding: 32px clamp(16px, 4vw, 40px) 48px;
}

a {
  color: var(--accent);
  text-decoration: none;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 28px;
}

.brand {
  display: flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.5px;
}

.logo-dot {
  width: 34px;
  height: 34px;
  border-radius: 12px;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  box-shadow: 0 10px 30px rgba(127, 90, 240, 0.35);
}

.file-pill {
  padding: 10px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: all 0.15s ease;
}

.file-pill:hover {
  border-color: rgba(255, 255, 255, 0.12);
  transform: translateY(-1px);
}

.actions {
  display: flex;
  align-items: center;
  gap: 10px;
}

.btn {
  padding: 10px 16px;
  border-radius: 999px;
  border: 1px solid transparent;
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  color: #0b1020;
  font-weight: 700;
  cursor: pointer;
  box-shadow: 0 10px 30px rgba(127, 90, 240, 0.35);
  transition: all 0.18s ease;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 12px 36px rgba(127, 90, 240, 0.4);
}

.btn.secondary {
  background: rgba(255, 255, 255, 0.04);
  color: var(--text);
  border-color: var(--border);
  box-shadow: none;
}

.btn.secondary:hover {
  border-color: rgba(255, 255, 255, 0.15);
}

.btn.danger {
  background: linear-gradient(135deg, #fb7185, #f472b6);
  color: #0b1020;
}

input[type="file"] {
  color: var(--muted);
  background: rgba(255, 255, 255, 0.04);
  border-radius: 12px;
  padding: 10px;
  border: 1px dashed var(--border);
}

input[type="text"],
input[type="search"],
input[type="url"] {
  width: 100%;
  padding: 12px 14px;
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid var(--border);
  border-radius: 12px;
  color: var(--text);
  outline: none;
  transition: all 0.18s ease;
}

input[type="text"]:focus,
input[type="search"]:focus,
input[type="url"]:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 4px rgba(125, 211, 252, 0.08);
}

.hero {
  margin-bottom: 28px;
}

.hero h1 {
  margin: 0 0 8px;
  font-size: clamp(28px, 4vw, 38px);
  letter-spacing: -0.6px;
}

.hero p {
  margin: 0;
  color: var(--muted);
  max-width: 620px;
}

.grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 18px;
}

.box,
.card {
  padding: 20px;
  background: linear-gradient(145deg, var(--panel), var(--panel-2));
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  cursor: pointer;
  position: relative;
  overflow: hidden;
  transition: transform 0.18s ease, border-color 0.18s ease, box-shadow 0.18s ease;
}

.box::after,
.card::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(125, 211, 252, 0.1), rgba(167, 139, 250, 0.08));
  opacity: 0;
  transition: opacity 0.2s ease;
}

.box:hover,
.card:hover {
  transform: translateY(-4px);
  border-color: rgba(255, 255, 255, 0.12);
  box-shadow: 0 18px 50px rgba(0, 0, 0, 0.45);
}

.box:hover::after,
.card:hover::after {
  opacity: 1;
}

.card h3 {
  margin: 0 0 6px;
}

.card small {
  color: var(--muted);
}

.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
  margin: 18px 0 12px;
  flex-wrap: wrap;
}

.section {
  background: rgba(255, 255, 255, 0.02);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 18px;
  box-shadow: var(--shadow);
}

.section h3 {
  margin-top: 0;
  margin-bottom: 12px;
}

.settings-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 14px;
}

.setting-card {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  background: linear-gradient(145deg, var(--panel), var(--panel-2));
  box-shadow: var(--shadow);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.setting-card .muted {
  margin: 0;
}

.toggle {
  position: relative;
  width: 66px;
  height: 32px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid var(--border);
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease;
}

.toggle[data-state="on"] {
  background: linear-gradient(135deg, var(--accent), var(--accent-2));
  border-color: transparent;
}

.toggle-thumb {
  position: absolute;
  top: 3px;
  left: 3px;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: #0b1020;
  box-shadow: 0 8px 22px rgba(0, 0, 0, 0.35);
  transition: transform 0.18s ease;
}

.toggle[data-state="on"] .toggle-thumb {
  transform: translateX(34px);
  background: #0a0b0f;
}

img {
  max-width: 240px;
  border-radius: 12px;
  border: 1px solid var(--border);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.35);
  margin: 5px;
}

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

@media (max-width: 640px) {
  .topbar {
    flex-direction: column;
    align-items: flex-start;
  }

  .actions {
    width: 100%;
    flex-wrap: wrap;
    justify-content: flex-start;
  }

  .btn,
  .file-pill,
  input[type="file"] {
    width: auto;
  }

  .app-shell {
    padding: 20px 14px 32px;
  }

  .hero {
    text-align: left;
  }

  .grid {
    grid-template-columns: repeat(auto-fit, minmax(180px, 1fr));
    gap: 14px;
  }

  .setting-card {
    flex-direction: column;
    align-items: flex-start;
  }
}