/* Svoboda Donation Upgrade - Frontend Styles */

.sdu-form-wrapper {
    max-width: 600px;
    margin: 40px auto;
    padding: 20px;
}

.sdu-form-container {
    background: #ffffff;
    border-radius: 12px;
    padding: 40px;
    box-shadow: 0 4px 20px rgba(0, 0, 0, 0.1);
}

.sdu-form-title {
    text-align: center;
    font-size: 24px;
    font-weight: 700;
    margin-bottom: 30px;
    color: #333;
}

/* Loading spinner */
.sdu-loading {
    text-align: center;
    padding: 40px 20px;
}

.sdu-spinner {
    border: 4px solid #f3f3f3;
    border-top: 4px solid #d94e28;
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: sdu-spin 1s linear infinite;
    margin: 0 auto 20px;
}

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

/* Error message */
.sdu-error {
    background: #fee;
    border: 1px solid #fcc;
    border-radius: 8px;
    padding: 15px;
    margin-bottom: 20px;
}

.sdu-error-message {
    color: #c33;
    margin: 0;
    font-size: 14px;
}

/* Form layout */
.sdu-form-row {
    display: flex;
    gap: 20px;
    margin-bottom: 20px;
}

.sdu-form-group {
    flex: 1;
}

.sdu-form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: #555;
    font-size: 14px;
}

.sdu-input {
    width: 100%;
    padding: 12px 16px;
    border: 1px solid #ddd;
    border-radius: 8px;
    font-size: 16px;
    transition: border-color 0.3s;
    box-sizing: border-box;
}

.sdu-input:focus {
    outline: none;
    border-color: #d94e28;
}

.sdu-input:read-only {
    background-color: #f5f5f5;
    cursor: not-allowed;
}

/* Amount selection - slider style */
.sdu-amount-section {
    margin: 30px 0;
}

.sdu-amount-options {
    position: relative;
    display: flex;
    justify-content: space-between;
    align-items: flex-end;
    gap: 10px;
    margin-bottom: 15px;
}

/* horizontální linie pod body */
.sdu-amount-options::before {
    content: "";
    position: absolute;
    left: 0;
    right: 0;
    bottom: 6px;
    height: 3px;
    background: #f0c4b0;
    z-index: 0;
}

.sdu-amount-option {
    position: relative;
    flex: 1;
    text-align: center;
    cursor: pointer;
}

.sdu-amount-option input[type="radio"] {
    position: absolute;
    opacity: 0;
}

/* kruhový bod na linii */
.sdu-amount-option::before {
    content: "";
    position: absolute;
    left: 50%;
    bottom: 0;
    transform: translateX(-50%);
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid #d94e28;
    background: #fff;
    z-index: 2;
}

/* aktivní bod */
.sdu-amount-option input[type="radio"]:checked + .sdu-amount-label + .sdu-amount-circle,
.sdu-amount-option input[type="radio"]:checked + .sdu-amount-label::before {
    background: #d94e28;
    border-color: #d94e28;
}

/* text částky */
.sdu-amount-label {
    display: inline-block;
    margin-bottom: 18px;
    font-weight: 700;
    background: none;
    border: none;
    padding: 0;
}

.sdu-amount-value {
    display: block;
    font-size: 18px;
    color: #d94e28;
}

.sdu-amount-badge {
    display: inline-block;
    font-size: 10px;
    line-height: 1;
    padding: 3px 6px;
    margin-bottom: 4px;
    border-radius: 999px;
    background: #f89a4c;
    color: #fff;
}

/* Varianta bez badge (např. "Jiná") */
.sdu-amount-option.sdu-amount-custom .sdu-amount-label {
    font-weight: 600;
    color: #333;
}

.sdu-current-amount-info {
    margin-bottom: 12px;
    font-size: 14px;
}



.sdu-amount-label {
    display: block;
    padding: 12px 16px;
    text-align: center;
    border: 2px solid #ddd;
    border-radius: 8px;
    font-weight: 600;
    transition: all 0.3s;
    background: #fff;
}

/* vybraný box */
.sdu-amount-option input[type="radio"]:checked + .sdu-amount-label {
    background: #d94e28;
    color: #fff;
    border-color: #d94e28;
}

/* při aktivní volbě invertujeme badge a částku */
.sdu-amount-option input[type="radio"]:checked + .sdu-amount-label .sdu-amount-value {
    color: #fff;
}

.sdu-amount-option input[type="radio"]:checked + .sdu-amount-label .sdu-amount-badge {
    background: #fff;
    color: #d94e28;
}

.sdu-amount-option:hover .sdu-amount-label {
    border-color: #d94e28;
}

.sdu-custom-amount {
    margin-top: 15px;
}

/* Submit button */
.sdu-submit-btn {
    width: 100%;
    padding: 16px 32px;
    background: #d94e28;
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 18px;
    font-weight: 700;
    cursor: pointer;
    transition: background 0.3s;
    margin-top: 20px;
}

.sdu-submit-btn:hover {
    background: #c23d1a;
}

.sdu-submit-btn:disabled {
    background: #ccc;
    cursor: not-allowed;
}

/* Footer text */
.sdu-footer-text {
    text-align: center;
    font-size: 14px;
    color: #666;
    margin-top: 20px;
    line-height: 1.6;
}

.sdu-footer-text strong {
    color: #333;
}

/* Responsive */
@media (max-width: 600px) {
    .sdu-form-container {
        padding: 24px;
    }

    .sdu-form-title {
        font-size: 20px;
    }

    .sdu-form-row {
        flex-direction: column;
        gap: 10px;
    }

    /* Na mobilu místo slideru zobrazíme klasické boxy */
    .sdu-amount-options {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    .sdu-amount-options::before,
    .sdu-amount-option::before {
        display: none;
    }

    .sdu-amount-label {
        margin-bottom: 0;
    }
}