/* ========================================
   BASE.CSS - Reset, Root Variables, Global Styles
   ======================================== */

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

/* ========== CSS RESET ========== */
*,
*::before,
*::after {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

/* ========== ROOT VARIABLES ========== */
:root {
    /* Fonts */
    --font-mono: 'JetBrains Mono', monospace;
    --font-sans: 'Inter', sans-serif;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;
    --spacing-3xl: 4rem;

    /* Border Radius */
    --radius-sm: 4px;
    --radius-md: 8px;
    --radius-lg: 12px;
    --radius-xl: 16px;
    --radius-2xl: 20px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
    --transition-slow: 0.5s ease;
    --transition-smooth: cubic-bezier(0.16, 1, 0.3, 1);

    /* Z-index layers */
    --z-base: 1;
    --z-nav: 100;
    --z-modal: 2000;
    --z-loading: 3000;
}

/* ========== HTML & BODY ========== */
html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-mono);
    background: var(--color-bg);
    color: var(--color-primary);
    overflow-x: hidden;
    min-height: 100vh;
    transition: background 0.8s ease, color 0.5s ease;
}

/* ========== SELECTION ========== */
::selection {
    background: var(--color-primary);
    color: var(--color-bg);
}

/* ========== FOCUS STYLES ========== */
:focus-visible {
    outline: 2px solid var(--color-primary);
    outline-offset: 2px;
}

/* ========== SCROLLBAR ========== */
::-webkit-scrollbar {
    width: 8px;
}

::-webkit-scrollbar-track {
    background: transparent;
}

::-webkit-scrollbar-thumb {
    background: var(--color-primary-dim);
    border-radius: var(--radius-sm);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--color-primary);
}

/* ========== UTILITY CLASSES ========== */
.visually-hidden {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

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

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

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