:root {
    --primary-green: #5d8856;
    --secondary-green: #92af8e;
    --accent-gold: #c6855c;
    --light-sage: #eef3ec;
    --dark-forest: #3a5234;
    --cream: #faf6f2;
    --pure-white: #ffffff;
    --soft-gray: #f5f5f5;
    --text-dark: #2c2c2c;
    --shadow-light: rgba(0, 0, 0, 0.1);
    --shadow-medium: rgba(0, 0, 0, 0.2);
    --transition-smooth: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    --bg-main: #ffffff;
    --bg-secondary: #faf6f2;
    --text-primary: #2c2c2c;
    --text-secondary: #666666;
    --card-bg: #ffffff;
    --nav-bg: rgba(255, 255, 255, 0.98);
}

[data-theme="dark"] {
    --bg-main: #1a1a1a;
    --bg-secondary: #2d2d2d;
    --text-primary: #e0e0e0;
    --text-secondary: #b0b0b0;
    --card-bg: #2a2a2a;
    --nav-bg: rgba(26, 26, 26, 0.98);
    --cream: #2d2d2d;
    --soft-gray: #333333;
    --pure-white: #1a1a1a;
}

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

html {
    scroll-behavior: smooth;
    overflow-x: hidden;
}

body {
    font-family: 'Lato', sans-serif;
    background: var(--bg-main);
    color: var(--text-primary);
    line-height: 1.6;
    overflow-x: hidden;
    transition: background-color 0.5s ease, color 0.5s ease;
}

nav {
    position: fixed;
    top: 0;
    width: 100%;
    background: var(--nav-bg);
    backdrop-filter: blur(10px);
    box-shadow: 0 2px 30px var(--shadow-light);
    z-index: 1000;
    transition: var(--transition-smooth);
}