/* DASHBOARD — ESTILOS ESPECÍFICOS */

.dashboard-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

@media (min-width: 600px) {
    .dashboard-grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

/* Stat card */
.stat-card {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-md);
    padding: 20px;
    box-shadow: var(--shadow);
    position: relative;
    overflow: hidden;
}

.stat-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: var(--primary-color);
}

.stat-card.accent-green::before {
    background: var(--success);
}

.stat-card.accent-red::before {
    background: var(--error);
}

.stat-card.accent-yellow::before {
    background: var(--warning);
}

.stat-label {
    font-size: 0.72rem;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 1.2px;
    color: var(--text-sub);
    margin-bottom: 8px;
}

.stat-value {
    font-family: 'JetBrains Mono', monospace;
    font-size: 2rem;
    font-weight: 600;
    line-height: 1;
    color: var(--text-main);
}

.stat-meta {
    font-size: 0.78rem;
    color: var(--text-sub);
    margin-top: 6px;
}

/* Seções */
.section-block {
    background: var(--surface-color);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: 24px;
    margin-bottom: 20px;
    box-shadow: var(--shadow);
}

.section-title {
    font-size: 0.75rem;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 1.5px;
    color: var(--text-sub);
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Gráfico de sessões */
.chart-wrap {
    display: flex;
    align-items: flex-end;
    gap: 6px;
    height: 120px;
    margin-top: 8px;
    justify-content: center;
}

.bar-col {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    height: 100%;
    justify-content: flex-end;
    gap: 4px;
    min-width: 0;
}

.bar {
    width: 100%;
    border-radius: 4px 4px 0 0;
    transition: height 0.4s ease;
    position: relative;
    min-height: 4px;

}

.bar-label {
    font-size: 0.62rem;
    color: var(--text-sub);
    font-family: 'JetBrains Mono', monospace;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    max-width: 100%;
    text-align: center;

}

.bar-score {
    font-size: 0.65rem;
    font-family: 'JetBrains Mono', monospace;
    color: var(--text-sub);
    text-align: center;
}

/* Barra acerto/erro */
.ratio-bar {
    display: flex;
    height: 12px;
    border-radius: 6px;
    overflow: hidden;
    margin: 12px 0 6px;
}

.ratio-correct {
    background: var(--success);
    transition: width 0.5s ease;
}

.ratio-wrong {
    background: var(--error);
    transition: width 0.5s ease;
}

.ratio-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.78rem;
    color: var(--text-sub);
}

/* Lista de questões */
.question-row {
    padding: 14px 0;
    border-bottom: 1px solid var(--border-color);
    display: grid;
    grid-template-columns: 1fr auto;
    align-items: center;
    gap: 12px;
}

.question-row:last-child {
    border-bottom: none;
    padding-bottom: 0;
}

.question-text {
    font-size: 0.875rem;
    line-height: 1.4;
    color: var(--text-main);
}

.question-badge {
    font-family: 'JetBrains Mono', monospace;
    font-size: 0.75rem;
    font-weight: 600;
    padding: 4px 10px;
    border-radius: 20px;
    white-space: nowrap;
}

.badge-hard {
    background: rgba(214, 48, 49, 0.15);
    color: var(--error);
}

.badge-easy {
    background: rgba(0, 184, 148, 0.15);
    color: var(--success);
}

.badge-seen {
    font-size: 0.68rem;
    color: var(--text-sub);
    margin-top: 2px;
}

/* Estado vazio */
.empty-state {
    text-align: center;
    padding: 40px 20px;
    color: var(--text-sub);
}

.empty-state .empty-icon {
    font-size: 2.5rem;
    margin-bottom: 12px;
}

.empty-state p {
    font-size: 0.9rem;
}

/* Botões */
.btn-danger {
    background: transparent;
    border: 1px solid var(--error);
    color: var(--error);
    padding: 10px 20px;
    border-radius: var(--radius-sm);
    font-weight: 600;
    font-size: 0.85rem;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-danger:hover {
    background: var(--error);
    color: white;
}

/* Header do dashboard */
.dashboard-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    margin-bottom: 24px;
    flex-wrap: wrap;
    gap: 12px;
}

.dashboard-subtitle {
    font-size: 0.75rem;
    text-transform: uppercase;
    letter-spacing: 1px;
    color: var(--text-sub);
    margin-bottom: 4px;
}

.dashboard-title {
    font-size: 1.3rem;
    font-weight: 800;
}

.dashboard-title span {
    color: var(--primary-color);
}

/* Histórico compacto */
.streak-row {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
    margin-top: 4px;
    justify-content: center;
}

.streak-dot {
    width: 28px;
    height: 28px;
    border-radius: 6px;
    font-size: 0.6rem;
    font-family: 'JetBrains Mono', monospace;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: white;
}

.dot-pass {
    background: var(--success);
}

.dot-fail {
    background: var(--error);
}

.dot-mid {
    background: var(--warning);
    color: #333;
}

/* Navbar — links */
.nav-link {
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-sub);
    text-decoration: none;
    padding: 8px 14px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border-color);
    transition: all 0.2s ease;
}

.nav-link:hover {
    color: var(--primary-color);
    border-color: var(--primary-color);
}

/* ==========================================================================
   RESPONSIVIDADE
   ========================================================================== */
@media (max-width: 650px) {
    .dashboard-header {
        flex-direction: column;
        align-items: flex-start;
    }
}