/* Config block */
.config-block {
    border: 1px solid var(--border, #e2e8f0);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.section-title {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.95rem;
    font-weight: 700;
    margin: 0;
    padding: 0.75rem 1.1rem;
    background: var(--surface-alt, #f8fafc);
    border-bottom: 1px solid var(--border, #e2e8f0);
    color: var(--text, #1e293b);
}

.section-title i {
    color: var(--primary, #6366f1);
}

.config-grid {
    display: grid;
    grid-template-columns: 1fr 1fr 1fr;
    gap: 1rem;
    padding: 1rem 1.1rem;
}

@media (max-width: 640px) {
    .config-grid {
        grid-template-columns: 1fr 1fr;
    }
}

@media (max-width: 420px) {
    .config-grid {
        grid-template-columns: 1fr;
    }
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.input-group label {
    font-size: 0.82rem;
    font-weight: 600;
    color: var(--text-secondary, #64748b);
}

.label-hint {
    font-size: 0.72rem;
    font-weight: 400;
    color: var(--primary, #6366f1);
    margin-left: 0.2rem;
}

.label-hint-sm {
    font-size: 0.68rem;
    font-weight: 400;
    color: var(--text-secondary, #64748b);
}

.styled-input,
.styled-select {
    padding: 0.55rem 0.75rem;
    border: 2px solid var(--border, #e2e8f0);
    border-radius: 8px;
    font-size: 0.9rem;
    background: var(--surface, #fff);
    color: var(--text, #1e293b);
    transition: border-color .2s;
    width: 100%;
    box-sizing: border-box;
}

.styled-input:focus,
.styled-select:focus {
    outline: none;
    border-color: var(--primary, #6366f1);
}

/* Panel hint */
.panel-hint {
    font-size: 0.84rem;
    color: var(--text-secondary, #64748b);
    padding: 0.6rem 1.1rem 0;
    margin: 0;
}

/* Asignaturas */
.asig-header {
    display: grid;
    grid-template-columns: 2fr 1.2fr 1fr 2rem;
    gap: 0.5rem;
    padding: 0.5rem 1.1rem 0.3rem;
    font-size: 0.74rem;
    font-weight: 700;
    color: var(--text-secondary, #64748b);
    text-transform: uppercase;
    letter-spacing: .04em;
    border-bottom: 1px solid var(--border, #e2e8f0);
    margin-top: 0.5rem;
}

.asig-row {
    display: grid;
    grid-template-columns: 2fr 1.2fr 1fr 2rem;
    gap: 0.5rem;
    align-items: center;
    padding: 0.4rem 1.1rem;
    border-bottom: 1px solid var(--border, #f1f5f9);
    transition: background .15s;
}

.asig-row:last-child {
    border-bottom: none;
}

.asig-row:hover {
    background: var(--surface-alt, #f8fafc);
}

.asig-row input[type="text"],
.asig-row select {
    padding: 0.42rem 0.6rem;
    border: 2px solid var(--border, #e2e8f0);
    border-radius: 7px;
    font-size: 0.87rem;
    background: var(--surface, #fff);
    color: var(--text, #1e293b);
    width: 100%;
    box-sizing: border-box;
    transition: border-color .18s;
}

.asig-row input[type="text"]:focus,
.asig-row select:focus {
    outline: none;
    border-color: var(--primary, #6366f1);
}

.asig-row input[type="number"] {
    padding: 0.42rem 0.6rem;
    border: 2px solid var(--border, #e2e8f0);
    border-radius: 7px;
    font-size: 0.87rem;
    background: var(--surface-alt, #f8fafc);
    color: var(--text-secondary, #64748b);
    width: 100%;
    box-sizing: border-box;
}

.btn-del-row {
    width: 2rem;
    height: 2rem;
    border: none;
    border-radius: 6px;
    background: #fef2f2;
    color: #ef4444;
    cursor: pointer;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background .15s;
}

.btn-del-row:hover {
    background: #fee2e2;
}

.btn-add-row {
    display: inline-flex;
    align-items: center;
    gap: 0.4rem;
    margin: 0.75rem 1.1rem 1rem;
    padding: 0.4rem 0.9rem;
    border: 2px dashed var(--primary, #6366f1);
    border-radius: 8px;
    background: transparent;
    color: var(--primary, #6366f1);
    font-size: 0.84rem;
    font-weight: 700;
    cursor: pointer;
    transition: background .15s;
}

.btn-add-row:hover {
    background: var(--primary-light, #eef2ff);
}

/* Botón calcular */
.btn-calc {
    width: 100%;
    padding: 0.9rem;
    background: var(--primary, #6366f1);
    color: #fff;
    border: none;
    border-radius: 10px;
    font-size: 1rem;
    font-weight: 700;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
    transition: background .2s, transform .1s;
    margin-top: 0.5rem;
}

.btn-calc:hover {
    background: var(--primary-dark, #4f46e5);
}

.btn-calc:active {
    transform: scale(.98);
}

/* Resultado */
.result-estudio {
    background: #fff;
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    padding: 1.8rem;
    box-shadow: var(--shadow);
    margin: 1.5rem 0;
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

/* Resumen global */
.resumen-global {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(150px, 1fr));
    gap: 0.75rem;
}

.resumen-card {
    background: var(--surface, #fff);
    border: 1.5px solid var(--border, #e2e8f0);
    border-radius: 12px;
    padding: 1rem;
    text-align: center;
}

.resumen-card.rc-primary {
    background: linear-gradient(135deg, var(--primary, #6366f1) 0%, var(--primary-dark, #4f46e5) 100%);
    border-color: transparent;
    color: #fff;
}

.rc-icon {
    font-size: 1.3rem;
    margin-bottom: 0.35rem;
    opacity: .75;
}

.rc-value {
    font-size: 1.65rem;
    font-weight: 700;
    line-height: 1;
    margin-bottom: 0.2rem;
}

.rc-label {
    font-size: 0.75rem;
    font-weight: 600;
    opacity: .75;
    text-transform: uppercase;
    letter-spacing: .04em;
}

.resumen-card:not(.rc-primary) .rc-value {
    color: var(--primary, #6366f1);
}

.resumen-card:not(.rc-primary) .rc-label {
    color: var(--text-secondary, #64748b);
}

/* Semáforo */
.semaforo-wrap {
    display: flex;
    align-items: center;
    gap: 1rem;
    padding: 1rem 1.25rem;
    border-radius: 12px;
    border: 1.5px solid var(--border, #e2e8f0);
    background: var(--surface, #fff);
    flex-wrap: wrap;
}

.semaforo-dot {
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    flex-shrink: 0;
}

.dot-ok {
    background: #10b981;
}

.dot-warn {
    background: #f59e0b;
}

.dot-bad {
    background: #ef4444;
}

.semaforo-text {
    font-size: 0.9rem;
    font-weight: 600;
    color: var(--text, #1e293b);
    flex: 1;
}

.semaforo-sub {
    font-size: 0.8rem;
    color: var(--text-secondary, #64748b);
    width: 100%;
    margin-top: -0.5rem;
    padding-left: 2rem;
}

/* Plan por asignatura */
.plan-title {
    font-size: 0.95rem;
    font-weight: 700;
    margin: 0 0 0.75rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    color: var(--text, #1e293b);
}

.plan-cards {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.plan-card {
    display: grid;
    grid-template-columns: 2fr 1fr 1fr 1fr;
    align-items: center;
    gap: 0.75rem;
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--border, #e2e8f0);
    border-radius: 10px;
    background: var(--surface, #fff);
    transition: border-color .2s;
}

.plan-card:hover {
    border-color: var(--primary, #6366f1);
}

@media (max-width: 540px) {
    .plan-card {
        grid-template-columns: 1fr 1fr;
        row-gap: 0.4rem;
    }
}

.pc-name {
    font-weight: 700;
    font-size: 0.9rem;
    color: var(--text, #1e293b);
}

.pc-dif {
    display: inline-flex;
    align-items: center;
    gap: 0.3rem;
    font-size: 0.8rem;
    font-weight: 600;
}

.dif-1 {
    color: #10b981;
}

.dif-2 {
    color: #3b82f6;
}

.dif-3 {
    color: #f59e0b;
}

.dif-4 {
    color: #ef4444;
}

.dif-5 {
    color: #7c3aed;
}

.pc-stat {
    text-align: center;
}

.pc-stat-val {
    font-size: 1.05rem;
    font-weight: 700;
    color: var(--primary, #6366f1);
}

.pc-stat-lbl {
    font-size: 0.7rem;
    color: var(--text-secondary, #64748b);
    font-weight: 600;
}

.pc-bar-wrap {
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.pc-bar-track {
    flex: 1;
    height: 6px;
    background: var(--surface-alt, #f1f5f9);
    border-radius: 99px;
    overflow: hidden;
}

.pc-bar-fill {
    height: 100%;
    border-radius: 99px;
    background: var(--primary, #6366f1);
    transition: width .4s ease;
}

.pc-bar-pct {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--text-secondary, #64748b);
    min-width: 2.5rem;
    text-align: right;
}

/* Horario timeline */
.horario-timeline {
    display: flex;
    flex-direction: column;
    gap: 0;
    border: 1px solid var(--border, #e2e8f0);
    border-radius: 10px;
    overflow: hidden;
}

.ht-row {
    display: grid;
    grid-template-columns: 5rem 1fr;
    align-items: stretch;
    border-bottom: 1px solid var(--border, #f1f5f9);
}

.ht-row:last-child {
    border-bottom: none;
}

.ht-time {
    padding: 0.55rem 0.75rem;
    font-size: 0.78rem;
    font-weight: 700;
    color: var(--text-secondary, #64748b);
    background: var(--surface-alt, #f8fafc);
    display: flex;
    align-items: center;
    border-right: 1px solid var(--border, #e2e8f0);
}

.ht-block {
    padding: 0.55rem 0.85rem;
    font-size: 0.85rem;
    font-weight: 600;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.ht-block.ht-estudio {
    background: var(--primary-light, #eef2ff);
    color: var(--primary, #6366f1);
}

.ht-block.ht-descanso {
    background: #f0fdf4;
    color: #15803d;
}

.ht-block.ht-largo {
    background: #fef9c3;
    color: #854d0e;
}

.ht-block.ht-libre {
    background: var(--surface, #fff);
    color: var(--text-secondary, #64748b);
}

.ht-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    flex-shrink: 0;
}

.dot-estudio {
    background: var(--primary, #6366f1);
}

.dot-descanso {
    background: #10b981;
}

.dot-largo {
    background: #f59e0b;
}

.dot-libre {
    background: #cbd5e1;
}

/* Técnica tips */
.tecnica-tips {
    padding: 1rem 1.25rem;
    border-radius: 12px;
    border: 1.5px solid var(--border, #e2e8f0);
    background: var(--surface, #fff);
}

.tt-title {
    font-size: 0.9rem;
    font-weight: 700;
    color: var(--text, #1e293b);
    margin-bottom: 0.6rem;
    display: flex;
    align-items: center;
    gap: 0.5rem;
}

.tt-title i {
    color: var(--primary, #6366f1);
}

.tt-list {
    display: flex;
    flex-direction: column;
    gap: 0.4rem;
    padding: 0;
    margin: 0;
    list-style: none;
}

.tt-list li {
    font-size: 0.84rem;
    color: var(--text-secondary, #64748b);
    display: flex;
    align-items: flex-start;
    gap: 0.5rem;
}

.tt-list li::before {
    content: '✓';
    color: var(--primary, #6366f1);
    font-weight: 700;
    flex-shrink: 0;
    margin-top: 0.05rem;
}

/* Error */
.calc-error {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.85rem 1rem;
    background: #fef2f2;
    border: 1px solid #fecaca;
    border-radius: 10px;
    color: #b91c1c;
    font-size: 0.9rem;
    font-weight: 600;
    margin: 1rem 0;
}

/* Fórmula texto */
.formula-text-block {
    background: var(--surface-alt, #f8fafc);
    border-left: 4px solid var(--primary, #6366f1);
    border-radius: 6px;
    padding: 0.75rem 1rem;
    margin: 0.75rem 0;
    font-family: 'Courier New', monospace;
    font-size: 0.9rem;
    color: var(--text, #1e293b);
}

/* Responsive plan cards */
@media (max-width: 400px) {

    .asig-header,
    .asig-row {
        grid-template-columns: 1.5fr 1fr 0.8fr 2rem;
    }
}