.don-donation {
    --don-primary: #1a2e6b;
    --don-primary-dark: #14245a;
    --don-accent: #4f6fd6;
    --don-selected-bg: #eef2ff;
    --don-selected-border: #4f6fd6;
    --don-border: #e2e6ef;
    --don-text: #1a2230;
    --don-muted: #6b7280;
    --don-error: #d94545;
    --don-bg: #ffffff;

    box-sizing: border-box;
    width: 100%;
    max-width: 640px;
    margin: 0 auto;
    padding: 28px;
    background: var(--don-bg);
    border: 1px solid var(--don-border);
    border-radius: 14px;
    box-shadow: 0 4px 24px rgba(16, 24, 40, 0.06);
    color: var(--don-text);
    font-size: 15px;
    line-height: 1.4;
}
.don-donation *,
.don-donation *::before,
.don-donation *::after {
    box-sizing: border-box;
}

.don-tabs {
    display: flex;
    gap: 24px;
    border-bottom: 1px solid var(--don-border);
    margin-bottom: 24px;
}
.don-tab {
    flex: 1;
    background: transparent;
    border: 0;
    border-bottom: 2px solid transparent;
    padding: 12px 4px;
    font-size: 15px;
    font-weight: 500;
    color: var(--don-muted);
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}
.don-tab.active {
    color: var(--don-text);
    border-bottom-color: var(--don-text);
    font-weight: 600;
}
.don-tab-icon {
    font-size: 16px;
}

.don-panel {
    display: block;
}
.don-panel[hidden] {
    display: none;
}

.don-h {
    margin: 24px 0 12px;
    font-size: 15px;
    font-weight: 600;
    color: var(--don-text);
}
.don-h-sub {
    font-weight: 400;
    color: var(--don-muted);
    font-size: 14px;
}

.don-presets,
.don-periodicity {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 10px;
    margin-bottom: 10px;
}
.don-preset,
.don-period {
    background: #fff;
    border: 1px solid var(--don-border);
    border-radius: 10px;
    padding: 14px 8px;
    font-size: 14px;
    font-weight: 500;
    color: var(--don-text);
    cursor: pointer;
    transition: border-color .15s ease, background-color .15s ease;
}
.don-preset:hover,
.don-period:hover {
    border-color: var(--don-accent);
}
.don-preset.selected,
.don-period.selected {
    background: var(--don-selected-bg);
    border-color: var(--don-selected-border);
}

.don-amount-input {
    position: relative;
    margin-bottom: 8px;
}
.don-amount-prefix {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--don-muted);
    font-size: 15px;
    pointer-events: none;
}
.don-donation .don-amount-input input[type="text"] {
    width: 100%;
    padding: 12px 14px 12px 34px;
    border: 1px solid var(--don-border);
    border-radius: 10px;
    font-size: 14px;
    background: #fff;
    color: var(--don-text);
}

.don-methods {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 10px;
    margin-bottom: 6px;
}
.don-panel[data-tab="recurring"] .don-methods {
    grid-template-columns: repeat(2, 1fr);
}
.don-method {
    background: #fff;
    border: 1px solid var(--don-border);
    border-radius: 10px;
    padding: 18px 8px;
    font-size: 14px;
    color: var(--don-text);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 6px;
    transition: border-color .15s ease, background-color .15s ease;
}
.don-method:hover {
    border-color: var(--don-accent);
}
.don-method.selected {
    background: var(--don-selected-bg);
    border-color: var(--don-selected-border);
}
.don-method-icon {
    font-size: 20px;
}
.don-method-label {
    font-weight: 500;
}

.don-transfer-details,
.don-bizum-details {
    margin: 12px 0 0;
    padding: 14px 16px;
    background: var(--don-selected-bg);
    border: 1px solid var(--don-border);
    border-radius: 10px;
    font-size: 14px;
    overflow-wrap: break-word;
    word-break: break-word;
}
.don-transfer-details p,
.don-bizum-details p {
    margin: 4px 0;
}
.don-transfer-details .don-transfer-disclaimer {
    font-size: 12px;
    color: var(--don-muted);
    margin-top: 8px;
}

.don-bizum-title {
    font-weight: 600;
    margin-bottom: 6px !important;
}
.don-bizum-number-row {
    margin: 10px 0 !important;
}
.don-bizum-number {
    display: inline-block;
    background: #fff;
    border: 1px solid var(--don-border);
    border-radius: 6px;
    padding: 2px 8px;
    font-family: monospace;
    font-size: 14px;
    letter-spacing: 0.04em;
}
.don-bizum-details a {
    color: var(--don-primary);
    text-decoration: underline;
}
.don-bizum-send {
    display: inline-block;
    margin-top: 12px;
    padding: 8px 16px;
    border: 1.5px solid var(--don-primary);
    border-radius: 20px;
    color: var(--don-primary) !important;
    text-decoration: none !important;
    font-size: 13px;
    font-weight: 500;
    transition: background-color .15s ease, color .15s ease;
}
.don-bizum-send:hover {
    background: var(--don-primary);
    color: #fff !important;
}

.don-data {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 14px 16px;
    margin-bottom: 12px;
}
.don-field {
    display: flex;
    flex-direction: column;
}
.don-field label {
    font-size: 13px;
    font-weight: 600;
    margin-bottom: 6px;
    color: var(--don-text);
}
.don-donation input[type="text"],
.don-donation input[type="email"],
.don-donation input[type="tel"] {
    width: 100%;
    padding: 11px 14px;
    border: 1px solid var(--don-border);
    border-radius: 10px;
    font-size: 14px;
    background: #fff;
    color: var(--don-text);
}
.don-donation input.don-error {
    border-color: var(--don-error);
    background: #fdecec;
}
.don-field-help {
    font-size: 12px;
    color: var(--don-muted);
    margin-top: 4px;
}

.don-checks {
    margin-top: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.don-check {
    display: flex;
    gap: 10px;
    align-items: flex-start;
    font-size: 13px;
    color: var(--don-text);
    cursor: pointer;
}
.don-check input[type="checkbox"] {
    margin-top: 2px;
    accent-color: var(--don-primary);
}
.don-check a {
    color: var(--don-primary);
    text-decoration: underline;
}

.don-donation .don-submit {
    margin-top: 22px;
    width: 100%;
    padding: 15px;
    background: var(--don-primary);
    color: #fff;
    border: 0;
    border-radius: 10px;
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    transition: background-color .15s ease;
}
.don-donation .don-submit:hover {
    background: var(--don-primary-dark);
}
.don-donation .don-submit:disabled {
    opacity: .6;
    cursor: not-allowed;
}

.don-footer {
    margin: 14px 0 0;
    text-align: center;
    font-size: 12px;
    color: var(--don-muted);
}

@media (max-width: 540px) {
    .don-donation {
        padding: 18px;
    }
    .don-data {
        grid-template-columns: 1fr;
    }
    .don-presets,
    .don-periodicity {
        grid-template-columns: repeat(2, 1fr);
    }
    .don-methods,
    .don-panel[data-tab="recurring"] .don-methods {
        grid-template-columns: 1fr;
    }
}