body {
    font-family: 'Vazirmatn', Tahoma, sans-serif;
}

.navbar-brand {
    font-weight: 700;
}

.table th {
    font-weight: 600;
}

.badge-role {
    font-size: 0.8rem;
}

.guest-layout {
    background: linear-gradient(160deg, #f0f4f8 0%, #e8eef5 100%);
}

.login-card {
    border-radius: 0.75rem;
}

.login-card .form-control-lg {
    font-size: 1rem;
}

.login-page {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
}

.login-page .card {
    border-radius: 0.75rem;
}

.login-page .form-control:focus {
    box-shadow: 0 0 0 0.2rem rgba(13, 110, 253, 0.15);
}

.exam-autosave-indicator {
    display: inline-block;
    width: 0.5rem;
    height: 0.5rem;
    margin-left: 0.35rem;
    border-radius: 50%;
    background-color: var(--bs-secondary);
    vertical-align: middle;
}

#exam-autosave-status.text-success .exam-autosave-indicator {
    background-color: var(--bs-success);
}

#exam-autosave-status.text-danger .exam-autosave-indicator {
    background-color: var(--bs-danger);
}

#exam-autosave-status.text-muted .exam-autosave-indicator {
    animation: exam-autosave-pulse 1s ease-in-out infinite;
}

@keyframes exam-autosave-pulse {
    0%, 100% { opacity: 0.35; }
    50% { opacity: 1; }
}

.exam-protected {
    user-select: none;
    -webkit-user-select: none;
}

.exam-blocked-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 1rem;
    background: rgba(15, 23, 42, 0.72);
}

.exam-blocked-card {
    max-width: 28rem;
    width: 100%;
    border-radius: 0.75rem;
}

.exam-layout {
    background-color: #f4f6f9;
}

.exam-schedule-value {
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.02em;
}

.exam-schedule-list .exam-schedule-value {
    margin-right: 0.35rem;
}

.exam-header .h5 {
    line-height: 1.4;
}

.container-narrow {
    max-width: 820px;
}

.exam-progress-bar {
    height: 0.5rem;
    border-radius: 1rem;
}

.exam-question-card {
    border-radius: 0.75rem;
    overflow: hidden;
}

.exam-question-text {
    line-height: 1.75;
    font-size: 1.05rem;
}

.exam-listening-block {
    background: linear-gradient(180deg, #f8fafc 0%, #f1f5f9 100%);
}

.exam-audio-player {
    min-height: 3rem;
}

.exam-question-options legend {
    float: none;
    width: auto;
}

.exam-option {
    transition: border-color 0.15s ease, background-color 0.15s ease;
    cursor: pointer;
}

.exam-option-letter {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    min-width: 1.75rem;
    height: 1.75rem;
    margin-left: 0.5rem;
    border-radius: 0.35rem;
    background-color: var(--bs-light);
    color: var(--bs-primary);
    font-weight: 700;
    font-size: 0.9rem;
}

.exam-option-text {
    vertical-align: middle;
}

.exam-question-card--reading {
    border-top: 3px solid var(--bs-primary);
}

.exam-question-card--listening {
    border-top: 3px solid var(--bs-info);
}

.exam-question-card--writing {
    border-top: 3px solid var(--bs-warning);
}

.exam-palette-btn--reading.btn-success,
.exam-palette-btn--reading.btn-primary {
    box-shadow: inset 0 0 0 2px rgba(13, 110, 253, 0.35);
}

.exam-palette-btn--listening.btn-success,
.exam-palette-btn--listening.btn-primary {
    box-shadow: inset 0 0 0 2px rgba(13, 202, 240, 0.45);
}

.exam-palette-btn--writing.btn-success,
.exam-palette-btn--writing.btn-primary {
    box-shadow: inset 0 0 0 2px rgba(255, 193, 7, 0.55);
}

.exam-question-card .form-check {
    transition: border-color 0.15s ease, background-color 0.15s ease;
    cursor: pointer;
}

.exam-question-card .form-check:has(input:checked) {
    border-color: var(--bs-primary) !important;
    background-color: rgba(13, 110, 253, 0.06);
}

.exam-question-card .form-check-input:checked {
    border-color: var(--bs-primary);
    background-color: var(--bs-primary);
}

.exam-palette-btn {
    min-width: 2.25rem;
    font-weight: 600;
}

.exam-timer-display {
    font-variant-numeric: tabular-nums;
    letter-spacing: 0.05em;
    color: var(--bs-primary);
}

.exam-timer-warning .exam-timer-display {
    color: var(--bs-warning);
}

.exam-timer-expired .exam-timer-display {
    color: var(--bs-danger);
}

.exam-timer-warning,
.exam-timer-expired {
    animation: none;
}

.exam-footer {
    box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.06);
}

@media (max-width: 575.98px) {
    .exam-footer .btn {
        width: 100%;
    }
}