.main-header h1 {
    font-family: Georgia, serif;
    font-size: 38px;
    margin: 0 0 8px 0;
    color: #111111;
}

.main-header .subtitle {
    color: #888888;
    font-size: 16px;
    margin: 0 0 35px 0;
}


.forecast-grid {
    display: flex;
    gap: 20px;
    margin-bottom: 25px;
}

.forecast-card {
    background: #ffffff;
    flex: 1;
    border: 1px solid #ebdcb9;
    border-radius: 16px;
    padding: 30px 15px;
    text-align: center;
    box-shadow: 0 4px 10px rgba(0,0,0,0.01);
}

.card-icon {
    font-size: 26px;
    color: #dca134;
    margin-bottom: 12px;
}

.forecast-card h3 {
    font-size: 16px;
    margin: 0 0 20px 0;
    color: #444444;
    font-weight: 500;
}


.forecast-card input[type="file"] {
    display: flex;
    width: 100%;
    height: 65px;
    font-size: 14px;
    color: #888888;
    text-align: center;
    cursor: pointer;
    text-align-last: center;
}


.forecast-card input[type="file"]::file-selector-button {
    display: block;
    margin: 0 auto 10px auto;
    background: #ffffff;
    border: 1px solid #cccccc;
    border-radius: 20px;
    padding: 6px 22px;
    font-size: 14px;
    color: #444444;
    font-family: inherit;
    cursor: pointer;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
    transition: all 0.2s ease;
}


.forecast-card input[type="file"]::file-selector-button:hover {
    border-color: #dca134;
    background-color: #faf8f5;
    color: #111111;
}


.battery-card {
    background: #ffffff;
    border: 1px solid #ebdcb9;
    border-radius: 16px;
    padding: 25px 40px;
    display: flex;
    align-items: center;
    gap: 40px;
    margin-bottom: 35px;
}

.battery-visual-container {
    display: flex;
    flex-direction: column;
    align-items: center;
}

.battery-head {
    width: 16px;
    height: 6px;
    background: #b58c3d;
    border-radius: 2px 2px 0 0;
}

.battery-body {
    width: 40px;
    height: 65px;
    border: 3px solid #b58c3d;
    border-radius: 6px;
    position: relative;
    padding: 2px;
}

.battery-liquid {
    background: #b58c3d;
    width: 100%;
    height: 60%;
    position: absolute;
    bottom: 0;
    left: 0;
    border-radius: 0 0 2px 2px;
}

.battery-fields {
    flex: 1;
    display: flex;
    flex-direction: column;
    gap: 15px;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 5px;
}

.input-group label {
    font-size: 14px;
    color: #666666;
}

.input-group input {
    padding: 10px;
    border: 1px solid #e3d9c3;
    background-color: #faf8f5;
    border-radius: 8px;
    max-width: 350px;
    outline: none;
}


.action-zone {
    display: flex;
    justify-content: space-between;
    align-items: center;
    width: 100%;
    margin-bottom: 40px;
}

.btn-optimize {
    background-color: #dca134;
    color: #ffffff;
    border: 2px solid #dca134;
    padding: 14px 40px;
    font-size: 16px;
    font-weight: bold;
    border-radius: 25px;
    cursor: pointer;
    transition: background 0.2s;
}

.btn-optimize:hover {
    background-color: #fdfaf2;
    color: #dca134;
    border-color: #dca134;
}

.btn-income {
    background-color: #dca134;
    color: #ffffff;
    border: 2px solid #dca134;
    padding: 12px 38px;
    font-size: 16px;
    font-weight: bold;
    border-radius: 25px;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn-income:hover {
    background-color: #fdfaf2;
    color: #be8723;
    border-color: #be8723;
}