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

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

body {
    font-family: 'Vazirmatn', sans-serif;
    background: var(--body-background);
    color: var(--text-primary);
    direction: rtl;
    line-height: 1.6;
    min-height: 100vh;
    overflow-x: hidden;
}

.numeric-text {
    direction: ltr !important;
    text-align: right !important;
    font-variant-numeric: tabular-nums;
    unicode-bidi: plaintext;
    letter-spacing: 0.02em;
}

.numeric-text[data-inline="true"] {
    display: inline-flex;
    align-items: center;
}

body.is-scroll-locked {
    overflow: hidden;
}

.app-wrapper {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

.main-content {
    flex: 1;
    padding-top: var(--header-height);
    padding-bottom: var(--spacing-xl);
}

.container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: 0 var(--spacing-md);
}

.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    padding: 0.75rem 1.5rem;
    border-radius: var(--radius-md);
    font-weight: 500;
    font-size: 0.9rem;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    border: none;
    white-space: nowrap;
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--primary-light) 100%);
    color: var(--text-inverse);
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-outline {
    background: var(--glass-bg);
    color: var(--text-primary);
    border: 1px solid var(--glass-border);
    backdrop-filter: blur(10px);
}

.btn-outline:hover {
    background: var(--surface-muted);
    border-color: var(--primary);
}

.btn-submit {
    width: 100%;
    background: linear-gradient(135deg, var(--primary) 0%, var(--accent) 100%);
    color: var(--text-inverse);
}

.btn-submit:hover {
    transform: scale(1.02);
    box-shadow: var(--shadow-md);
}

@media (max-width: 768px) {
    .main-content {
        padding-bottom: var(--spacing-xl);
    }

    .container {
        padding: 0 var(--spacing-sm);
    }

    .btn {
        padding: 0.65rem 1.25rem;
        font-size: 0.85rem;
    }
}