/**
 * HAON Platform - Base Styles
 * Variables, Reset, Global Styles
 */

/* ============================================
   CSS VARIABLES
   ============================================ */
:root {
    /* Colors - Brand (from HAON logo palette) */
    --haon-blue-deep: #0f2847;
    --haon-blue: #1a5bb8;
    --haon-blue-bright: #2c79e0;
    --haon-blue-light: #5BA3E8;
    --haon-accent: #ffd700;
    --haon-white: #ffffff;
    --haon-black: #000000;

    /* Colors - Functional */
    --text-primary: #ffffff;
    --text-secondary: rgba(255, 255, 255, 0.9);
    --text-muted: rgba(255, 255, 255, 0.6);

    /* Backgrounds */
    --bg-gradient: linear-gradient(160deg, #0f2847 0%, #1a4a8a 40%, #1a5bb8 100%);
    --bg-glass: rgba(255, 255, 255, 0.06);
    --bg-glass-hover: rgba(255, 255, 255, 0.1);
    --bg-glass-border: rgba(255, 255, 255, 0.12);

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 2rem;
    --space-lg: 3rem;
    --space-xl: 4rem;

    /* Typography */
    --font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-size-base: 1rem;
    --font-size-lg: 1.2rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 6rem;

    /* Shadows */
    --shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 20px rgba(0, 0, 0, 0.3);
    --shadow-glow: 0 0 20px rgba(255, 255, 255, 0.5);

    /* Border radius */
    --radius-sm: 8px;
    --radius-md: 16px;
    --radius-lg: 50px;
    --radius-full: 50%;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-base: 0.3s ease;
    --transition-slow: 0.5s ease;
}

/* ============================================
   RESET
   ============================================ */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-family);
    font-size: var(--font-size-base);
    line-height: 1.6;
    color: var(--text-primary);
    background: var(--bg-gradient);
    min-height: 100vh;
    overflow-x: hidden;
}

/* ============================================
   GLOBAL UTILITIES
   ============================================ */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--space-md);
}

.text-center {
    text-align: center;
}

.hidden {
    display: none;
}