/* Grupos de componentes */
.component-group {
    border: 1px solid var(--border, #e2e8f0);
    border-radius: 12px;
    overflow: hidden;
    margin-bottom: 1rem;
}

.component-group-header {
    display: flex;
    align-items: center;
    gap: 0.6rem;
    padding: 0.75rem 1.1rem;
    background: var(--surface-alt, #f8fafc);
    border-bottom: 1px solid var(--border, #e2e8f0);
}

.component-group-header h2 {
    font-size: 0.95rem;
    font-weight: 700;
    margin: 0;
    color: var(--text, #1e293b);
}

.cg-icon {
    font-size: 1rem;
    color: var(--primary, #6366f1);
    width: 1.25rem;
    text-align: center;
}

.cg-icon-gpu {
    color: #10b981;
}

.cg-icon-ram {
    color: #f59e0b;
}

.cg-icon-storage {
    color: #3b82f6;
}

.cg-icon-mb {
    color: #8b5cf6;
}

.cg-icon-extra {
    color: #ec4899;
}

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

.component-row.three-col {
    grid-template-columns: 1fr 1fr 1fr;
}

@media (max-width: 600px) {

    .component-row,
    .component-row.three-col {
        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: 0.25rem;
}

.styled-select,
.w-input {
    padding: 0.55rem 0.75rem;
    border: 2px solid var(--border, #e2e8f0);
    border-radius: 8px;
    font-size: 0.88rem;
    background: var(--surface, #fff);
    color: var(--text, #1e293b);
    transition: border-color .2s;
    width: 100%;
    box-sizing: border-box;
}

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

/* Almacenamiento grid */
.storage-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 0.75rem;
    padding: 1rem 1.1rem;
}

.storage-item {
    display: flex;
    flex-direction: column;
    gap: 0.3rem;
}

.storage-item label {
    font-size: 0.8rem;
    font-weight: 600;
    color: var(--text-secondary, #64748b);
}

.per-unit {
    font-size: 0.75rem;
    color: var(--text-secondary, #64748b);
}

/* Qty input */
.qty-input {
    display: flex;
    align-items: center;
    border: 2px solid var(--border, #e2e8f0);
    border-radius: 8px;
    overflow: hidden;
    width: fit-content;
}

.qty-btn {
    width: 2rem;
    height: 2.1rem;
    border: none;
    background: var(--surface-alt, #f8fafc);
    font-size: 1.1rem;
    font-weight: 700;
    color: var(--primary, #6366f1);
    cursor: pointer;
    transition: background .15s;
    flex-shrink: 0;
}

.qty-btn:hover {
    background: var(--primary, #6366f1);
    color: #fff;
}

.qty-num {
    width: 2.5rem;
    border: none;
    outline: none;
    text-align: center;
    font-size: 0.9rem;
    font-weight: 700;
    background: var(--surface, #fff);
    color: var(--text, #1e293b);
}

/* Extras */
.extras-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(220px, 1fr));
    gap: 0.5rem;
    padding: 1rem 1.1rem;
}

.extra-toggle {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 0.75rem;
    border: 1.5px solid var(--border, #e2e8f0);
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.84rem;
    font-weight: 600;
    color: var(--text, #1e293b);
    transition: border-color .15s, background .15s;
    user-select: none;
}

.extra-toggle:hover {
    border-color: var(--primary, #6366f1);
    background: var(--surface-alt, #f8fafc);
}

.extra-toggle input[type="checkbox"] {
    accent-color: var(--primary, #6366f1);
    width: 1rem;
    height: 1rem;
    flex-shrink: 0;
}

.extra-w {
    margin-left: auto;
    font-size: 0.78rem;
    color: var(--primary, #6366f1);
    font-weight: 700;
}

/* Botón */
.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: 1rem;
}

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

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

/* Resultado */
.result-psu {
    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;
}

.psu-summary {
    background: linear-gradient(135deg, var(--primary, #6366f1) 0%, var(--primary-dark, #4f46e5) 100%);
    border-radius: 14px;
    padding: 1.25rem 1.5rem;
    color: #fff;
}

.psu-watts-raw {
    display: flex;
    flex-direction: column;
    gap: 0.1rem;
    margin-bottom: 1rem;
}

.psu-label {
    font-size: 0.82rem;
    font-weight: 600;
    opacity: .8;
    text-transform: uppercase;
    letter-spacing: .05em;
}

.psu-value {
    font-size: 2.2rem;
    font-weight: 700;
}

.psu-bar-track {
    position: relative;
    height: 12px;
    background: rgba(255, 255, 255, 0.25);
    border-radius: 99px;
    overflow: visible;
    margin-bottom: 0.3rem;
}

.psu-bar-fill {
    height: 100%;
    border-radius: 99px;
    background: #fff;
    transition: width .5s ease;
}

.psu-bar-marker {
    position: absolute;
    top: -4px;
    width: 4px;
    height: 20px;
    background: #fbbf24;
    border-radius: 2px;
    transition: left .5s ease;
}

.psu-bar-labels {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    opacity: .75;
}

/* PSU Cards */
.psu-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(180px, 1fr));
    gap: 0.75rem;
}

.psu-card {
    border: 2px solid var(--border, #e2e8f0);
    border-radius: 12px;
    padding: 1rem;
    text-align: center;
    background: var(--surface, #fff);
    transition: border-color .2s, box-shadow .2s;
}

.psu-card.psu-card-best {
    border-color: var(--primary, #6366f1);
    box-shadow: 0 4px 16px rgba(99, 102, 241, .15);
}

.psu-card-badge {
    display: inline-block;
    font-size: 0.7rem;
    font-weight: 700;
    padding: 0.15rem 0.5rem;
    border-radius: 99px;
    margin-bottom: 0.5rem;
    background: var(--surface-alt, #f8fafc);
    color: var(--text-secondary, #64748b);
}

.psu-card.psu-card-best .psu-card-badge {
    background: var(--primary, #6366f1);
    color: #fff;
}

.psu-card-watts {
    font-size: 1.6rem;
    font-weight: 700;
    color: var(--primary, #6366f1);
    line-height: 1;
    margin-bottom: 0.3rem;
}

.psu-card-label {
    font-size: 0.78rem;
    color: var(--text-secondary, #64748b);
    font-weight: 600;
}

.psu-card-load {
    font-size: 0.75rem;
    color: var(--text-secondary, #64748b);
    margin-top: 0.4rem;
}

.load-ok {
    color: #10b981;
    font-weight: 700;
}

.load-warn {
    color: #f59e0b;
    font-weight: 700;
}

.load-bad {
    color: #ef4444;
    font-weight: 700;
}

/* Desglose */
.psu-breakdown {
    border: 1px solid var(--border, #e2e8f0);
    border-radius: 10px;
    overflow: hidden;
}

.breakdown-toggle {
    width: 100%;
    padding: 0.85rem 1rem;
    background: var(--surface-alt, #f8fafc);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 0.5rem;
    font-size: 0.88rem;
    font-weight: 700;
    color: var(--text, #1e293b);
    text-align: left;
}

.breakdown-toggle i:last-child {
    margin-left: auto;
    transition: transform .25s;
}

.breakdown-toggle.open i:last-child {
    transform: rotate(180deg);
}

.breakdown-body {
    padding: 0;
}

.breakdown-table {
    width: 100%;
    border-collapse: collapse;
    font-size: 0.86rem;
}

.breakdown-table td {
    padding: 0.5rem 1rem;
    border-bottom: 1px solid var(--border, #e2e8f0);
    color: var(--text, #1e293b);
}

.breakdown-table tr:last-child td {
    border-bottom: none;
}

.breakdown-table td:last-child {
    text-align: right;
    font-weight: 700;
    color: var(--primary, #6366f1);
}

.breakdown-table tr.bd-total td {
    font-weight: 700;
    background: var(--surface-alt, #f8fafc);
}

/* 80 PLUS */
.plus80-section h3 {
    font-size: 1rem;
    margin-bottom: 0.75rem;
    display: flex;
    gap: 0.5rem;
    align-items: center;
}

.plus80-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
    gap: 0.5rem;
}

.plus80-chip {
    text-align: center;
    padding: 0.6rem 0.5rem;
    border-radius: 10px;
    border: 1.5px solid var(--border, #e2e8f0);
    font-size: 0.78rem;
}

.plus80-chip .p80-name {
    font-weight: 700;
    font-size: 0.85rem;
    display: block;
    margin-bottom: 0.2rem;
}

.plus80-chip .p80-eff {
    font-size: 0.72rem;
    color: var(--text-secondary, #64748b);
}

.plus80-chip.p80-rec {
    border-color: var(--primary, #6366f1);
    background: var(--primary-light, #eef2ff);
}

.plus80-chip.p80-rec .p80-name {
    color: var(--primary, #6366f1);
}

/* 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: 0.93rem;
    color: var(--text, #1e293b);
}