/* CSS Variables & Theming */

:root {
    /* Light Theme */
    --bg-color: #ffffff;
    --bg-rgb: 255, 255, 255;
    --bg-alt: #f8f9fa;
    --text-main: #212529;
    --text-muted: #6c757d;
    --primary-color: #000000;
    --primary-hover: #333333;
    --border-color: #e9ecef;
    --card-bg: #ffffff;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.08);
    --shadow-lg: 0 10px 24px rgba(0, 0, 0, 0.1);
    --transition: all 0.3s ease;

    --font-primary: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", sans-serif;
}

[data-theme="dark"] {
    /* Dark Theme */
    --bg-color: #121212;
    --bg-rgb: 18, 18, 18;
    --bg-alt: #1e1e1e;
    --text-main: #f8f9fa;
    --text-muted: #adb5bd;
    --primary-color: #ffffff;
    --primary-hover: #e0e0e0;
    --border-color: #2d2d2d;
    --card-bg: #1a1a1a;
    --shadow-sm: 0 2px 4px rgba(0, 0, 0, 0.2);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.3);
    --shadow-lg: 0 10px 24px rgba(0, 0, 0, 0.4);
}

/* Global Reset & Base Styles */

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

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

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

a {
    text-decoration: none;
    color: inherit;
}

ul {
    list-style: none;
}

img {
    max-width: 100%;
    height: auto;
    display: block;
}

.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 2rem;
}

.section {
    padding: 6rem 0;
}

.bg-alt {
    background-color: var(--bg-alt);
}