/**
 * Frontend CSS - Shipping Calculator Form Styling
 * Responsive and Modern Design
 */

* {
    box-sizing: border-box;
}

.tapin-calculator-wrapper {
    max-width: 700px;
    margin: 0 auto;
    padding: 15px;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'B Titr', 'IRANSans', sans-serif;
}

.tapin-calculator-form {
    background: #fff;
    padding: 30px 25px;
    border: none;
    border-radius: var(--tapin-border-radius, 8px);
    font-size: var(--tapin-font-size, 14px);
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
    transition: box-shadow 0.3s ease;
}

.tapin-calculator-form:hover {
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.12);
}

.tapin-form-group {
    margin-bottom: 22px;
    display: flex;
    flex-direction: column;
}

.tapin-form-group:last-child {
    margin-bottom: 0;
}

.tapin-form-group label {
    display: block;
    margin-bottom: 10px;
    font-weight: 600;
    color: #2c3e50;
    font-size: var(--tapin-font-size, 14px);
    letter-spacing: 0.3px;
}

.tapin-required {
    color: #e74c3c;
    font-weight: bold;
    margin: 0 0 0 4px;
}

.tapin-form-group select,
.tapin-form-group input[type="number"] {
    width: 100%;
    padding: 12px 14px;
    border: 2px solid #e0e0e0;
    border-radius: var(--tapin-border-radius, 8px);
    font-size: var(--tapin-font-size, 14px);
    font-family: inherit;
    transition: all 0.3s ease;
    background-color: #fff;
    color: #2c3e50;
}

.tapin-form-group select:hover,
.tapin-form-group input[type="number"]:hover {
    border-color: #bdc3c7;
}

.tapin-form-group select:focus,
.tapin-form-group input[type="number"]:focus {
    outline: none;
    border-color: var(--tapin-primary-color, #007cba);
    box-shadow: 0 0 0 4px rgba(0, 124, 186, 0.1);
    background-color: #f8fbfd;
}

.tapin-form-group select:disabled {
    background-color: #f5f6f7;
    color: #7f8c8d;
    cursor: not-allowed;
    opacity: 0.7;
}

.tapin-form-group input[type="number"]::placeholder {
    color: #95a5a6;
}

/* Two-column layout for provinces */
.tapin-provinces-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

/* Two-column layout for package and weight */
.tapin-specs-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
    margin-bottom: 20px;
}

/* Three-column layout for dimensions */
.tapin-dimensions {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 15px;
    margin: 20px 0;
    padding: 0;
    background: transparent;
    border: 1px solid #e0e7ff;
}

.tapin-submit-btn {
    width: 100%;
    padding: 14px 20px;
    background-color: var(--tapin-button-color, #0073aa);
    color: #fff;
    border: none;
    border-radius: var(--tapin-border-radius, 8px);
    font-size: var(--tapin-font-size, 14px);
    font-weight: 700;
    cursor: pointer;
    transition: all 0.3s ease;
    margin-top: 28px;
    box-shadow: 0 2px 8px rgba(0, 115, 170, 0.3);
    letter-spacing: 0.5px;
}

.tapin-submit-btn:hover:not(:disabled) {
    background-color: var(--tapin-primary-color, #007cba);
    box-shadow: 0 4px 14px rgba(0, 115, 170, 0.4);
    transform: translateY(-2px);
}

.tapin-submit-btn:active:not(:disabled) {
    transform: translateY(0);
    box-shadow: 0 2px 6px rgba(0, 115, 170, 0.3);
}

.tapin-submit-btn:disabled {
    opacity: 0.6;
    cursor: not-allowed;
    box-shadow: none;
}

/* Loading State */
.tapin-loading {
    text-align: center;
    padding: 50px 20px 40px;
    background: linear-gradient(135deg, #f8f9fa 0%, #e8eef2 100%);
    border-radius: var(--tapin-border-radius, 8px);
    border: 1px solid #e0e7ff;
    margin-top: 28px;
    animation: fadeIn 0.3s ease;
}

.tapin-spinner {
    display: inline-block;
    width: 48px;
    height: 48px;
    border: 4px solid #e8eef2;
    border-top: 4px solid var(--tapin-primary-color, #007cba);
    border-right: 4px solid var(--tapin-primary-color, #007cba);
    border-radius: 50%;
    animation: tapin-spin 1.2s linear infinite;
    margin: 0 auto 20px;
}

@keyframes tapin-spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.tapin-loading p {
    color: #555;
    font-size: var(--tapin-font-size, 14px);
    margin: 0;
    font-weight: 500;
}

/* Result State */
.tapin-result {
    background: #fff;
    border: 2px solid #28a745;
    border-radius: var(--tapin-border-radius, 8px);
    padding: 28px;
    margin-top: 28px;
    animation: slideIn 0.4s ease-out;
    box-shadow: 0 4px 12px rgba(40, 167, 69, 0.15);
}

.tapin-result h3 {
    margin: 0 0 22px 0;
    color: #155724;
    font-size: calc(var(--tapin-font-size, 14px) * 1.3);
    border-bottom: 3px solid #28a745;
    padding-bottom: 12px;
    font-weight: 700;
}

.tapin-result-content {
    color: #333;
}

.tapin-price-main {
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: linear-gradient(135deg, #f0f9ff 0%, #e8f4ff 100%);
    padding: 20px;
    border-radius: var(--tapin-border-radius, 8px);
    margin-bottom: 20px;
    border: 1px solid #dceefe;
}

.tapin-price-label {
    font-weight: 700;
    color: #2c3e50;
    font-size: calc(var(--tapin-font-size, 14px) * 1.05);
}

.tapin-price-value {
    font-size: calc(var(--tapin-font-size, 14px) * 2);
    font-weight: 800;
    color: var(--tapin-primary-color, #007cba);
    letter-spacing: -0.5px;
}

.tapin-price-breakdown {
    background: #f8f9fa;
    border-radius: var(--tapin-border-radius, 8px);
    padding: 16px;
    border: 1px solid #e0e7ff;
}

.tapin-breakdown-item {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid #e0e0e0;
    font-size: calc(var(--tapin-font-size, 14px) * 0.95);
    color: #555;
}

.tapin-breakdown-item:last-child {
    border-bottom: none;
}

.tapin-breakdown-item span:last-child {
    font-weight: 700;
    color: var(--tapin-primary-color, #007cba);
}

/* Error State */
.tapin-error {
    background: #fff;
    border: 2px solid #dc3545;
    border-radius: var(--tapin-border-radius, 8px);
    padding: 20px;
    margin-top: 28px;
    color: #721c24;
    animation: slideIn 0.4s ease-out;
    box-shadow: 0 4px 12px rgba(220, 53, 69, 0.15);
}

.tapin-error p {
    margin: 0;
    font-size: var(--tapin-font-size, 14px);
    line-height: 1.6;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateY(-15px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* Responsive Design */
@media (max-width: 768px) {
    .tapin-calculator-wrapper {
        padding: 10px;
    }

    .tapin-calculator-form {
        padding: 24px 18px;
    }

    .tapin-form-group label {
        font-size: calc(var(--tapin-font-size, 14px) * 1.05);
        margin-bottom: 8px;
    }

    .tapin-dimensions {
        grid-template-columns: repeat(auto-fit, minmax(120px, 1fr));
        gap: 14px;
        padding: 16px;
        margin: 22px 0;
    }

    .tapin-submit-btn {
        padding: 12px 16px;
        margin-top: 24px;
        font-size: calc(var(--tapin-font-size, 14px) * 1.05);
    }

    .tapin-price-main {
        flex-direction: column;
        text-align: center;
        padding: 16px;
    }

    .tapin-price-label {
        margin-bottom: 8px;
        display: block;
    }

    .tapin-price-value {
        font-size: calc(var(--tapin-font-size, 14px) * 1.8);
    }

    .tapin-result {
        padding: 20px;
    }

    .tapin-result h3 {
        font-size: calc(var(--tapin-font-size, 14px) * 1.2);
    }
}

@media (max-width: 480px) {
    .tapin-calculator-wrapper {
        padding: 5px;
    }

    .tapin-calculator-form {
        padding: 20px 14px;
        box-shadow: 0 1px 6px rgba(0, 0, 0, 0.1);
    }

    .tapin-form-group {
        margin-bottom: 18px;
    }

    .tapin-form-group label {
        font-size: var(--tapin-font-size, 14px);
    }

    .tapin-form-group select,
    .tapin-form-group input[type="number"] {
        padding: 10px 12px;
        font-size: 16px;
        border-radius: 6px;
    }

    .tapin-dimensions {
        grid-template-columns: 1fr;
        gap: 12px;
        padding: 14px;
        margin: 18px 0;
    }

    .tapin-submit-btn {
        padding: 12px 14px;
        margin-top: 20px;
        font-size: var(--tapin-font-size, 14px);
    }

    .tapin-price-main {
        padding: 14px;
    }

    .tapin-result {
        padding: 16px;
        margin-top: 20px;
    }

    .tapin-loading {
        padding: 40px 16px 32px;
        margin-top: 20px;
    }

    .tapin-error {
        padding: 16px;
        margin-top: 20px;
    }
}

/* Accessibility */
.tapin-form-group input:focus,
.tapin-form-group select:focus {
    outline: 2px solid var(--tapin-primary-color, #007cba);
    outline-offset: 2px;
}

/* Package Selector Section */
#tapin-package {
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23333' d='M10.293 3.293L6 7.586 1.707 3.293A1 1 0 00.293 4.707l5 5a1 1 0 001.414 0l5-5a1 1 0 10-1.414-1.414z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 12px center;
    background-size: 12px;
    padding-right: 40px;
    appearance: none;
}

#tapin-package::-ms-expand {
    display: none;
}

/* Content Type Radio Buttons Section */
.tapin-content-type {
    margin: 25px 0;
    padding: 18px 20px;
    background: linear-gradient(135deg, #f0f7ff 0%, #e6f2ff 100%);
    border-radius: var(--tapin-border-radius, 8px);
    border-left: 4px solid var(--tapin-primary-color, #007cba);
}

.tapin-content-type label {
    font-weight: 500;
    font-size: var(--tapin-font-size, 14px);
    cursor: pointer;
    transition: all 0.2s ease;
    user-select: none;
}

.tapin-content-type input[type="radio"] {
    cursor: pointer;
    width: 18px;
    height: 18px;
    margin: 0;
    accent-color: var(--tapin-primary-color, #007cba);
    vertical-align: middle;
}

.tapin-content-type label:hover {
    color: var(--tapin-primary-color, #007cba);
}

.tapin-content-type input[type="radio"]:checked + span {
    font-weight: 600;
    color: var(--tapin-primary-color, #007cba);
}

/* Field Update Animation */
.tapin-field-updated {
    animation: fieldUpdatePulse 0.6s ease-in-out;
}

@keyframes fieldUpdatePulse {
    0% {
        background-color: #fff3cd;
        border-color: #ffc107;
    }
    50% {
        background-color: #fff9e6;
    }
    100% {
        background-color: #fff;
        border-color: #e0e0e0;
    }
}

/* Responsive Design - Tablets and Below */
@media (max-width: 768px) {
    .tapin-provinces-row,
    .tapin-specs-row {
        grid-template-columns: 1fr;
    }
    
    .tapin-dimensions {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* Responsive Design - Mobile */
@media (max-width: 480px) {
    .tapin-calculator-form {
        padding: 20px 15px;
    }

    .tapin-dimensions {
        grid-template-columns: 1fr;
    }
}

/* Print Styles */
@media print {
    .tapin-submit-btn,
    .tapin-loading {
        display: none;
    }

    .tapin-result {
        border: 1px solid #000;
        page-break-inside: avoid;
    }
}