@font-face {
    font-family: 'Vazirmatn';
    src: url('../fonts/Vazirmatn-Regular.woff2') format('woff2');
    font-weight: 400;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Vazirmatn';
    src: url('../fonts/Vazirmatn-Medium.woff2') format('woff2');
    font-weight: 500;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Vazirmatn';
    src: url('../fonts/Vazirmatn-SemiBold.woff2') format('woff2');
    font-weight: 600;
    font-style: normal;
    font-display: swap;
}
@font-face {
    font-family: 'Vazirmatn';
    src: url('../fonts/Vazirmatn-Bold.woff2') format('woff2');
    font-weight: 700;
    font-style: normal;
    font-display: swap;
}

:root {
    --primary: #0F3D5E;
    --primary-light: #1F6F8B;
    --accent: #2FA36B;
    --background: #F8FAFC;
    --surface: #FFFFFF;
    --text: #1F2937;
    --text-light: #6B7280;
    --border: #E5E7EB;
    --radius: 12px;
    --shadow: 0 8px 24px rgba(0,0,0,.08);
    --transition: .3s ease;

    /* Typography */
    --font-main: 'Vazirmatn', Tahoma, sans-serif;
    --fs-sm: 0.875rem;
    --fs-base: 1rem;
    --fs-lg: 1.125rem;
    --fs-xl: 1.5rem;
    --fs-2xl: 2rem;
    --fs-3xl: 2.75rem;

    /* Spacing */
    --space-xs: 0.5rem;
    --space-sm: 1rem;
    --space-md: 1.5rem;
    --space-lg: 2.5rem;
    --space-xl: 4rem;
}

/* Base reset / typography */
body,
input, textarea, select, button {
    font-family: var(--font-main) !important;
    color: var(--text);
}

body {
    background-color: var(--background);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-main) !important;
    font-weight: 700;
    color: var(--primary);
}

a {
    transition: color var(--transition);
}

/* Reusable helper classes */
.nd-surface {
    background: var(--surface);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
}

.nd-btn-primary {
    display: inline-block;
    background: var(--primary);
    color: #fff !important;
    padding: 0.75rem 1.75rem;
    border-radius: var(--radius);
    font-weight: 600;
    transition: background var(--transition), transform var(--transition);
}
.nd-btn-primary:hover {
    background: var(--accent);
    transform: translateY(-2px);
}