/* Solar Battery Backup Calculator
-------------------------------------------------- */

.battery-backup-content .entry-content {
    max-width: 1000px;
    margin: 0 auto;
}

.battery-backup {
    margin-top: 30px;
}

.battery-backup__intro {
    font-size: 17px;
    color: #475569;
    line-height: 1.6;
    margin-bottom: 30px;
}

.battery-backup__form {
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
    margin-bottom: 30px;
}

.battery-backup__section {
    margin-bottom: 30px;
}

.battery-backup__section:last-of-type {
    margin-bottom: 0;
}

.battery-backup__section-title {
    font-size: 18px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 18px;
    padding-bottom: 10px;
    border-bottom: 2px solid #f97316;
}

.battery-backup__appliance-list {
    margin-bottom: 16px;
}

.battery-backup__appliance {
    display: grid;
    grid-template-columns: 2fr 80px 100px 100px 40px;
    gap: 10px;
    align-items: end;
    margin-bottom: 12px;
    padding-bottom: 12px;
    border-bottom: 1px solid #f1f5f9;
}

@media (max-width: 767px) {
    .battery-backup__appliance {
        grid-template-columns: 1fr 1fr;
        gap: 12px;
        padding: 14px;
        background: #f8fafc;
        border-radius: 8px;
        border-bottom: none;
    }

    .battery-backup__appliance-field--name {
        grid-column: 1 / -1;
    }

    .battery-backup__appliance-remove {
        justify-self: end;
    }
}

.battery-backup__appliance-field {
    display: flex;
    flex-direction: column;
}

.battery-backup__appliance-label {
    font-size: 12px;
    font-weight: 600;
    color: #64748b;
    margin-bottom: 5px;
    text-transform: uppercase;
    letter-spacing: 0.3px;
}

.battery-backup__appliance-input {
    padding: 10px 12px;
    border: 1px solid #cbd5e1;
    border-radius: 6px;
    font-size: 14px;
    color: #1e293b;
    background: #f8fafc;
}

.battery-backup__appliance-input:focus {
    outline: none;
    border-color: #f97316;
    box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.15);
    background: #ffffff;
}

.battery-backup__appliance-remove {
    width: 36px;
    height: 36px;
    border: none;
    background: #fee2e2;
    color: #991b1b;
    border-radius: 6px;
    cursor: pointer;
    font-size: 14px;
    transition: background 0.2s ease;
}

.battery-backup__appliance-remove:hover {
    background: #fecaca;
}

.battery-backup__presets {
    display: flex;
    flex-wrap: wrap;
    align-items: center;
    gap: 8px;
    margin-top: 12px;
}

.battery-backup__presets-label {
    font-size: 13px;
    color: #64748b;
    margin-right: 4px;
}

.battery-backup__preset {
    padding: 6px 12px;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    background: #ffffff;
    color: #475569;
    font-size: 13px;
    cursor: pointer;
    transition: background 0.2s ease, border-color 0.2s ease;
}

.battery-backup__preset:hover {
    background: #fff7ed;
    border-color: #fdba74;
    color: #c2410c;
}

.battery-backup__grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 20px;
}

@media (max-width: 900px) {
    .battery-backup__grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 600px) {
    .battery-backup__grid {
        grid-template-columns: 1fr;
    }
}

.battery-backup__field {
    display: flex;
    flex-direction: column;
}

.battery-backup__label {
    font-weight: 600;
    color: #1e293b;
    margin-bottom: 8px;
    font-size: 14px;
}

.battery-backup__input-group {
    display: flex;
    align-items: stretch;
}

.battery-backup__input {
    flex: 1;
    padding: 12px 14px;
    border: 1px solid #cbd5e1;
    border-radius: 8px 0 0 8px;
    font-size: 15px;
    color: #1e293b;
    background: #f8fafc;
    transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.battery-backup__input:focus {
    outline: none;
    border-color: #f97316;
    box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.15);
    background: #ffffff;
}

.battery-backup__select {
    padding: 12px 14px;
    border: 1px solid #cbd5e1;
    border-radius: 8px;
    font-size: 15px;
    color: #1e293b;
    background: #f8fafc;
    cursor: pointer;
    width: 100%;
}

.battery-backup__select:focus {
    outline: none;
    border-color: #f97316;
    box-shadow: 0 0 0 3px rgba(249, 115, 22, 0.15);
    background: #ffffff;
}

.battery-backup__input-suffix {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 0 14px;
    background: #fff7ed;
    border: 1px solid #cbd5e1;
    border-left: none;
    border-radius: 0 8px 8px 0;
    font-weight: 600;
    color: #c2410c;
    font-size: 14px;
    min-width: 44px;
}

.battery-backup__hint {
    font-size: 12px;
    color: #64748b;
    margin-top: 6px;
}

.battery-backup__actions {
    display: flex;
    gap: 12px;
    margin-top: 28px;
    flex-wrap: wrap;
}

.battery-backup__actions--results {
    justify-content: flex-end;
    margin-top: 20px;
}

.battery-backup__btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 13px 24px;
    border-radius: 8px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: background 0.2s ease, transform 0.1s ease;
}

.battery-backup__btn:active {
    transform: translateY(1px);
}

.battery-backup__btn--primary {
    background: #f97316;
    color: #ffffff;
}

.battery-backup__btn--primary:hover {
    background: #ea580c;
}

.battery-backup__btn--secondary {
    background: #f1f5f9;
    color: #475569;
    border: 1px solid #cbd5e1;
}

.battery-backup__btn--secondary:hover {
    background: #e2e8f0;
}

.battery-backup__results {
    display: none;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 12px;
    padding: 30px;
    box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.05);
}

.battery-backup__results--visible {
    display: block;
}

.battery-backup__results-title {
    font-size: 22px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 20px;
}

.battery-backup__cards {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 16px;
    margin-bottom: 24px;
}

@media (max-width: 900px) {
    .battery-backup__cards {
        grid-template-columns: repeat(2, 1fr);
    }
}

@media (max-width: 500px) {
    .battery-backup__cards {
        grid-template-columns: 1fr;
    }
}

.battery-backup__card {
    background: #f8fafc;
    border: 1px solid #e2e8f0;
    border-radius: 10px;
    padding: 20px;
    text-align: center;
    transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.battery-backup__card:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 15px -3px rgba(0, 0, 0, 0.08);
}

.battery-backup__card-icon {
    font-size: 28px;
    color: #f97316;
    margin-bottom: 10px;
}

.battery-backup__card-label {
    font-size: 13px;
    color: #64748b;
    text-transform: uppercase;
    letter-spacing: 0.3px;
    margin-bottom: 8px;
}

.battery-backup__card-value {
    font-size: 24px;
    font-weight: 700;
    color: #1e293b;
    margin-bottom: 4px;
}

.battery-backup__card-unit {
    font-size: 13px;
    color: #64748b;
}

.battery-backup__details {
    background: #f0fdf4;
    border-left: 4px solid #22c55e;
    border-radius: 8px;
    padding: 20px;
}

.battery-backup__details h3 {
    font-size: 16px;
    font-weight: 700;
    color: #166534;
    margin-bottom: 10px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.battery-backup__details ul {
    margin: 0;
    padding-left: 18px;
    color: #14532d;
    line-height: 1.7;
}

@media print {
    .site-header,
    .site-footer,
    .battery-backup__actions,
    .inner-page-hero {
        display: none !important;
    }

    .battery-backup__results {
        display: block !important;
        box-shadow: none !important;
        border: 1px solid #cbd5e1 !important;
    }
}