* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.container-stock-calculator {
    font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
    background: #fffbe9;
    min-height: 100vh;
    padding: 20px;
    color: #222;
}
.container-stock-calculator .container {
    max-width: 800px;
    margin: 0 auto;
    background: white;
    border-radius: 20px;
    box-shadow: 0 20px 40px rgba(222, 148, 6, 0.08);
    overflow: hidden;
}
.container-stock-calculator .header {
    background: linear-gradient(135deg, #de9406 0%, #ffd88a 100%);
    padding: 40px 30px;
    text-align: center;
    color: #fff;
}
.container-stock-calculator .header h1 {
    font-size: 2.5rem;
    margin-bottom: 10px;
    font-weight: 700;
    color: #fff;
}
.container-stock-calculator .header h2 {
    font-size: 2rem;
    margin-bottom: 10px;
    font-weight: 600;
    color: #fffbe9;
}
.container-stock-calculator .header p {
    font-size: 1.2rem;
    opacity: 0.95;
    font-weight: 300;
    color: #fffbe9;
}
.container-stock-calculator .calculator-section {
    padding: 40px 30px;
}
.container-stock-calculator .input-group {
    margin-bottom: 25px;
}
.container-stock-calculator .input-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 600;
    color: #b97a00;
    font-size: 1.1rem;
}
.container-stock-calculator .input-wrapper {
    position: relative;
}
.container-stock-calculator .input-wrapper input {
    width: 100%;
    padding: 15px 20px;
    border: 2px solid #ffe2b3;
    border-radius: 12px;
    font-size: 1.1rem;
    transition: all 0.3s ease;
    background: #fffbe9;
    color: #222;
}
.container-stock-calculator .input-wrapper input:focus {
    outline: none;
    border-color: #de9406;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(222, 148, 6, 0.12);
}
.container-stock-calculator .currency-symbol,
.container-stock-calculator .quantity-symbol {
    position: absolute;
    left: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #b97a00;
    font-weight: 600;
}
.container-stock-calculator .input-wrapper input[type=number] {
    padding-left: 45px;
}
.container-stock-calculator .calculate-btn {
    width: 100%;
    padding: 18px;
    background: linear-gradient(135deg, #de9406 0%, #ffd88a 100%);
    color: #fff;
    border: none;
    border-radius: 12px;
    font-size: 1.2rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 20px;
    box-shadow: 0 4px 15px rgba(222, 148, 6, 0.12);
}
.container-stock-calculator .calculate-btn:hover:not(:disabled) {
    transform: translateY(-2px);
    box-shadow: 0 10px 20px rgba(222, 148, 6, 0.18);
    background: linear-gradient(135deg, #b97a00 0%, #ffd88a 100%);
}
.container-stock-calculator .calculate-btn:disabled {
    background: #ffe2b3;
    color: #b97a00;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}
.container-stock-calculator .result-section {
    margin-top: 40px;
    padding: 30px;
    background: #fffbe9;
    border-radius: 15px;
    display: none;
}
.container-stock-calculator .result-header {
    text-align: center;
    margin-bottom: 25px;
}
.container-stock-calculator .result-header h3 {
    font-size: 1.8rem;
    margin-bottom: 10px;
    color: #de9406;
}
.container-stock-calculator .profit {
    color: #28a745;
}
.container-stock-calculator .loss {
    color: #dc3545;
}
.container-stock-calculator .neutral {
    color: #b97a00;
}
.container-stock-calculator .amount {
    font-size: 2.5rem;
    font-weight: 700;
    margin: 10px 0;
    color: #de9406;
}
.container-stock-calculator .percentage {
    font-size: 2rem;
    font-weight: 600;
    color: #b97a00;
}
.container-stock-calculator .investment-details {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin: 25px 0;
}
.container-stock-calculator .detail-item {
    text-align: center;
    padding: 15px;
    background: #fff;
    border-radius: 10px;
    box-shadow: 0 2px 10px rgba(222, 148, 6, 0.06);
}
.container-stock-calculator .detail-label {
    font-size: 0.9rem;
    color: #b97a00;
    margin-bottom: 5px;
}
.container-stock-calculator .detail-value {
    font-size: 1.3rem;
    font-weight: 600;
    color: #222;
}
.container-stock-calculator .summary-section {
    margin-top: 30px;
    padding: 25px;
    background: #fff;
    border-radius: 12px;
    box-shadow: 0 2px 10px rgba(222, 148, 6, 0.06);
}
.container-stock-calculator .summary-title {
    font-size: 1.4rem;
    font-weight: 600;
    margin-bottom: 20px;
    color: #de9406;
    text-align: center;
}
.container-stock-calculator .summary-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: 15px;
}
.container-stock-calculator .summary-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid #ffe2b3;
}
.container-stock-calculator .summary-item:last-child {
    border-bottom: none;
}
.container-stock-calculator .summary-label {
    color: #b97a00;
    font-weight: 500;
}
.container-stock-calculator .summary-value {
    font-weight: 600;
    color: #222;
}
.container-stock-calculator {
    /* Responsive Design */
}
@media (max-width: 768px) {
    .container-stock-calculator .container {
        margin: 10px;
        border-radius: 15px;
    }
    .container-stock-calculator .header {
        padding: 30px 20px;
    }
    .container-stock-calculator .header h1 {
        font-size: 2rem;
    }
    .container-stock-calculator .header h2 {
        font-size: 1.5rem;
    }
    .container-stock-calculator .header p {
        font-size: 1rem;
    }
    .container-stock-calculator .calculator-section {
        padding: 30px 20px;
    }
    .container-stock-calculator .investment-details {
        grid-template-columns: 1fr;
        gap: 15px;
    }
    .container-stock-calculator .summary-grid {
        grid-template-columns: 1fr;
    }
    .container-stock-calculator .amount {
        font-size: 2rem;
    }
    .container-stock-calculator .percentage {
        font-size: 1.5rem;
    }
}
@media (max-width: 480px) {
    .container-stock-calculator {
        padding: 10px;
    }
    .container-stock-calculator .header h1 {
        font-size: 1.8rem;
    }
    .container-stock-calculator .header h2 {
        font-size: 1.3rem;
    }
    .container-stock-calculator .calculator-section {
        padding: 20px 15px;
    }
    .container-stock-calculator .result-section {
        padding: 20px 15px;
    }
    .container-stock-calculator .amount {
        font-size: 1.8rem;
    }
    .container-stock-calculator .percentage {
        font-size: 1.3rem;
    }
    .container-stock-calculator .download-btn {
        padding: 12px 25px;
        font-size: 1rem;
    }
}
.container-stock-calculator {
    /* Flatpickr custom styling */
}
.container-stock-calculator .flatpickr-calendar {
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(222, 148, 6, 0.18);
    background: #fffbe9;
}
.container-stock-calculator .flatpickr-day.selected {
    background: #de9406;
    border-color: #de9406;
    color: #fff;
}
.container-stock-calculator .flatpickr-day:hover {
    background: #ffd88a;
}
.container-stock-calculator .download-section {
    margin-top: 25px;
    text-align: center;
}
.container-stock-calculator .download-btn {
    background: linear-gradient(135deg, #de9406 0%, #ffd88a 100%);
    color: #fff;
    border: none;
    padding: 15px 30px;
    border-radius: 12px;
    font-size: 1.1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(222, 148, 6, 0.18);
    display: inline-flex;
    align-items: center;
    gap: 8px;
}
.container-stock-calculator .download-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 25px rgba(222, 148, 6, 0.22);
    background: linear-gradient(135deg, #b97a00 0%, #ffd88a 100%);
}
.container-stock-calculator .download-btn:active {
    transform: translateY(0);
    box-shadow: 0 4px 15px rgba(222, 148, 6, 0.18);
}