/* ---------- Certificación ---------- */
.cert-header {
    margin-bottom: 24px;
}

.cert-header h1 {
    margin: 4px 0 8px;
    font-size: 24px;
}

.cert-header .help {
    max-width: 640px;
    margin: 0;
}

.cert-requirements {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 24px;
}

.cert-req-count {
    margin: 0 0 10px;
    font-size: 14px;
    color: var(--gray-300);
}

.cert-req-footer {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 14px;
}

/* Result screens (blocked / ready / passed / failed) */
.cert-result {
    text-align: center;
    max-width: 640px;
    margin: 0 auto;
    padding: 36px 32px;
}

.cert-result h2 {
    margin: 0 0 10px;
    font-size: 22px;
}

.cert-result .help {
    max-width: 460px;
    margin: 0 auto 8px;
}

.cert-result--passed {
    border-color: var(--nitro-yellow);
}

/* Admin-review banner (pending/rejected/approved) shown above the passed block — deliberately
   more compact than the full result screens above. */
.cert-result--review {
    padding: 18px 24px;
    margin-bottom: 16px;
}

.cert-result--review h2 {
    font-size: 16px;
}

.cert-result--approved {
    border-color: var(--nitro-yellow);
}

.cert-cert-summary {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 16px;
    margin: 24px 0;
    text-align: left;
}

.cert-meta-label {
    display: block;
    font-size: 11px;
    text-transform: uppercase;
    letter-spacing: .04em;
    color: var(--dash-label);
    margin-bottom: 3px;
}

.cert-meta-value {
    font-size: 15px;
    font-weight: 700;
    color: var(--nitro-white);
    word-break: break-word;
}

.cert-actions {
    display: flex;
    flex-wrap: wrap;
    justify-content: center;
    gap: 10px;
    margin-top: 10px;
}

.cert-exam-summary {
    list-style: none;
    margin: 20px 0;
    padding: 0;
    text-align: left;
    display: flex;
    flex-direction: column;
    gap: 8px;
    font-size: 14px;
    color: var(--gray-300);
}

.cert-exam-summary li {
    padding-left: 18px;
    position: relative;
}

.cert-exam-summary li::before {
    content: '';
    position: absolute;
    left: 0;
    top: 8px;
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--nitro-yellow);
}

.cert-countdown {
    font-size: 14px;
    color: var(--nitro-white);
}

.cert-countdown strong {
    color: var(--nitro-yellow);
    font-variant-numeric: tabular-nums;
}

/* Exam in progress */
.cert-exam-top {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 18px;
    flex-wrap: wrap;
    gap: 10px;
}

.cert-exam-progress {
    font-size: 13px;
    font-weight: 600;
    color: var(--gray-300);
}

.cert-timer {
    font-size: 20px;
    font-weight: 800;
    font-variant-numeric: tabular-nums;
    color: var(--nitro-yellow);
    padding: 4px 14px;
    border-radius: 9999px;
    border: 1px solid var(--dash-border);
    background: var(--dash-surface);
}

.cert-timer.is-low {
    color: var(--danger);
    border-color: var(--danger);
}

.cert-question-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-bottom: 24px;
}

.cert-question-dot {
    width: 34px;
    height: 34px;
    min-width: 44px;
    min-height: 34px;
    border-radius: 9999px;
    border: 1px solid var(--dash-border);
    background: var(--dash-surface);
    color: var(--gray-300);
    font-size: 12px;
    font-weight: 700;
    cursor: pointer;
}

.cert-question-dot.is-answered {
    border-color: var(--nitro-yellow);
    color: var(--nitro-yellow);
}

.cert-question-dot.is-current {
    background: var(--nitro-yellow);
    border-color: var(--nitro-yellow);
    color: var(--nitro-black);
}

.cert-question h3 {
    font-size: 18px;
    line-height: 1.4;
    margin: 0 0 20px;
}

.cert-options {
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.cert-option {
    display: flex;
    align-items: center;
    gap: 12px;
    width: 100%;
    min-height: 48px;
    text-align: left;
    background: var(--dash-surface);
    border: 1px solid var(--dash-border);
    border-radius: var(--radius-sm);
    padding: 12px 16px;
    color: var(--nitro-white);
    font-size: 14px;
    cursor: pointer;
    transition: border-color .15s ease, background-color .15s ease;
}

.cert-option:hover {
    border-color: var(--nitro-yellow);
}

.cert-option.is-selected {
    border-color: var(--nitro-yellow);
    background: rgba(255, 214, 0, .08);
}

.cert-option-dot {
    flex-shrink: 0;
    width: 18px;
    height: 18px;
    border-radius: 50%;
    border: 2px solid var(--dash-border);
}

.cert-option.is-selected .cert-option-dot {
    border-color: var(--nitro-yellow);
    background: var(--nitro-yellow);
}

.cert-exam-nav {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 26px;
}

.cert-finish-btn {
    margin-left: auto;
}

.cert-answered-count {
    margin: 14px 0 0;
    text-align: center;
}

@media (prefers-reduced-motion: reduce) {
    .cert-option,
    .cert-question-dot {
        transition: none;
    }
}

@media (max-width: 900px) {
    .cert-requirements {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 600px) {
    .cert-result {
        padding: 24px 18px;
    }

    .cert-actions {
        flex-direction: column;
    }

    .cert-actions .btn {
        width: 100%;
    }

    .cert-exam-nav {
        flex-direction: column;
    }

    .cert-finish-btn {
        margin-left: 0;
        order: 3;
    }

    .cert-exam-nav .btn {
        width: 100%;
    }

    .cert-question-dot {
        width: 44px;
        height: 44px;
    }
}