:root {
    --bg-primary: #0a0a0f;
    --bg-secondary: #111118;
    --bg-card: #16161f;
    --bg-input: #1a1a25;
    --border-color: #252530;
    --border-focus: #4f46e5;
    --text-primary: #f1f1f3;
    --text-secondary: #9898a0;
    --text-muted: #60606a;
    --accent: #6366f1;
    --accent-hover: #5558e6;
    --accent-glow: rgba(99, 102, 241, 0.25);
    --success: #10b981;
    --success-glow: rgba(16, 185, 129, 0.25);
    --warning: #f59e0b;
    --danger: #ef4444;
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 16px;
    --radius-xl: 20px;
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.4);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.5);
    --shadow-lg: 0 8px 30px rgba(0, 0, 0, 0.6);
    --shadow-glow: 0 0 40px var(--accent-glow);
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-smooth: 300ms cubic-bezier(0.4, 0, 0.2, 1);
}

@font-face {
    font-family: 'IranSans';
    src: url('/assets/fonts/IRANSansWeb.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}

@font-face {
    font-family: 'IranSans';
    src: url('/assets/fonts/IRANSansWeb.woff') format('woff');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

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

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

body {
    font-family: 'IranSans', -apple-system, BlinkMacSystemFont, sans-serif;
    background-color: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    line-height: 1.6;
    direction: rtl;
    position: relative;
    overflow-x: hidden;
}

body::before {
    content: '';
    position: fixed;
    inset: 0;
    background: 
        radial-gradient(ellipse 80% 50% at 50% -20%, rgba(99, 102, 241, 0.08), transparent),
        radial-gradient(ellipse 60% 40% at 80% 80%, rgba(16, 185, 129, 0.05), transparent);
    pointer-events: none;
    z-index: 0;
}

::selection {
    background: var(--accent);
    color: #fff;
}

input::-webkit-outer-spin-button,
input::-webkit-inner-spin-button {
    -webkit-appearance: none;
    margin: 0;
}

input[type=number] {
    -moz-appearance: textfield;
}

a {
    color: var(--accent);
    text-decoration: none;
}

@media (max-width: 480px) {
    body {
        padding: 16px;
    }
}