@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Poppins:wght@400;500;600;700;800&display=swap');

:root {
  /* Brand Palette */
  --color-primary: #1E3A8A;         /* Royal Blue Corporate */
  --color-primary-hover: #1D4ED8;
  --color-secondary: #0D9488;       /* Deep Teal */
  --color-accent: #D97706;          /* Warm Amber */

  /* System Colors */
  --color-success: #10B981;
  --color-warning: #F59E0B;
  --color-danger: #EF4444;

  /* Light Theme Surface Colors */
  --bg-body: #F8FAFC;
  --bg-surface: #FFFFFF;
  --bg-surface-elevated: #F1F5F9;
  --text-main: #0F172A;
  --text-muted: #64748B;
  --border-color: #E2E8F0;

  /* Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.05);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.1), 0 2px 4px -2px rgb(0 0 0 / 0.1);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1);

  /* Fonts */
  --font-heading: 'Poppins', sans-serif;
  --font-body: 'Inter', sans-serif;
}

[data-theme="dark"] {
  /* Dark Theme Surface Colors */
  --bg-body: #0F172A;
  --bg-surface: #1E293B;
  --bg-surface-elevated: #334155;
  --text-main: #F8FAFC;
  --text-muted: #94A3B8;
  --border-color: #334155;

  /* Dark Shadows */
  --shadow-sm: 0 1px 2px 0 rgb(0 0 0 / 0.5);
  --shadow-md: 0 4px 6px -1px rgb(0 0 0 / 0.3);
  --shadow-lg: 0 10px 15px -3px rgb(0 0 0 / 0.4);
}

/* Reset Base Styles */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  background-color: var(--bg-body);
  color: var(--text-main);
  font-family: var(--font-body);
  transition: background-color 0.3s ease, color 0.3s ease;
  line-height: 1.6;
}

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading);
}

/* Smooth Scrollbar & Selection */
html {
  scroll-behavior: smooth;
}

::selection {
  background-color: var(--color-primary);
  color: #ffffff;
}