/* Base */
:root {
    /* Modern gradient color palette */
    --primary: #2563eb; /* vibrant blue */
    --primary-light: #3b82f6;
    --primary-dark: #1d4ed8;
    --accent: #f59e0b;  /* warm amber */
    --accent-light: #fbbf24;
    --success: #10b981; /* modern green */
    --danger: #ef4444;
    --warning: #f59e0b;
    --dark: #1e293b; /* deep slate */
    --light: #f8fafc;
    --light-2: #f1f5f9;
    --white: #ffffff;
    --text: #334155; /* readable slate */
    --text-light: #64748b;
    --border: #e2e8f0;
    --shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -1px rgba(0, 0, 0, 0.06);
    --shadow-lg: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 10px 10px -5px rgba(0, 0, 0, 0.04);
    --shadow-xl: 0 25px 50px -12px rgba(0, 0, 0, 0.25);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --nav-height: 70px;
}

* { margin: 0; padding: 0; box-sizing: border-box; }
html, body { margin: 0; padding: 0; }

body {
    font-family: 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.6;
    color: var(--text);
    background-color: var(--white);
}

/* Reserve space for fixed header */
body { 
    margin: 0;
    padding: 0;
}

h1, h2, h3 { color: var(--dark); margin-bottom: 1rem; }
a { text-decoration: none; color: inherit; }
ul { list-style: none; }
img { max-width: 100%; display: block; border-radius: 8px; }