@import url('https://fonts.googleapis.com/css2?family=Inter:wght@400;500;600;700;800&family=Plus+Jakarta+Sans:wght@600;700;800&display=swap');

:root {
  /* Surfaces */
  --bg-canvas: #eef3fb;
  --bg-card: #ffffff;
  --bg-hover: #eff5ff;
  --bg-input: #f8fafc;
  --bg-primary: #ffffff;
  --bg-secondary: #f1f6fe;

  /* Text */
  --text-primary: #0f1f3d;
  --text-secondary: #51607a;
  --text-muted: #8a97ad;

  /* Borders */
  --border-color: #dbe5f5;
  --border-strong: #b8c8e6;
  --border-focus: #2563eb;

  /* Accent (blue) */
  --accent-color: #2563eb;
  --accent-hover: #1d4ed8;
  --accent-soft: #3b82f6;
  --accent-cyan: #06b6d4;
  --accent-text: #ffffff;
  --accent-bg: rgba(37, 99, 235, 0.1);
  --accent-grad: linear-gradient(135deg, #3b82f6 0%, #2563eb 50%, #1e40af 100%);
  --accent-grad-vivid: linear-gradient(120deg, #06b6d4 0%, #3b82f6 45%, #1e40af 100%);

  /* Shadows */
  --shadow-sm: 0 1px 2px rgba(15, 31, 61, 0.06);
  --shadow-md: 0 8px 24px rgba(37, 99, 235, 0.1);
  --shadow-lg: 0 18px 48px rgba(30, 64, 175, 0.18);
  --shadow-accent: 0 8px 20px rgba(37, 99, 235, 0.35);

  /* Radius */
  --radius-sm: 8px;
  --radius-md: 12px;
  --radius-lg: 18px;

  --sans: 'Inter', system-ui, 'Segoe UI', Roboto, sans-serif;
  --heading: 'Plus Jakarta Sans', 'Inter', system-ui, sans-serif;

  font-family: var(--sans);
  color-scheme: light dark;
  color: var(--text-primary);
  background: var(--bg-canvas);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body.dark,
.dark {
  --bg-canvas: #0a1124;
  --bg-card: #111a33;
  --bg-hover: #1a2647;
  --bg-input: #16213f;
  --bg-primary: #111a33;
  --bg-secondary: #0d1530;

  --text-primary: #eaf1ff;
  --text-secondary: #a9b7d4;
  --text-muted: #6f7ea0;

  --border-color: #25335c;
  --border-strong: #3a4d80;
  --border-focus: #60a5fa;

  --accent-color: #3b82f6;
  --accent-hover: #60a5fa;
  --accent-soft: #60a5fa;
  --accent-cyan: #22d3ee;
  --accent-text: #ffffff;
  --accent-bg: rgba(59, 130, 246, 0.18);

  --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
  --shadow-md: 0 8px 24px rgba(0, 0, 0, 0.5);
  --shadow-lg: 0 18px 48px rgba(0, 0, 0, 0.6);
  --shadow-accent: 0 8px 22px rgba(37, 99, 235, 0.5);
}

* {
  box-sizing: border-box;
}

html,
body,
#root {
  margin: 0;
  padding: 0;
  width: 100%;
  min-height: 100vh;
}

body {
  background: var(--bg-canvas);
  color: var(--text-primary);
  transition: background 0.3s ease, color 0.3s ease;
}

#root {
  display: flex;
  flex-direction: column;
}

h1,
h2 {
  font-family: var(--heading);
}