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

body {
    background: #f5f7fb;
    color: #202938;
    min-height: 100vh;
}

.donate-wrapper {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 30px 15px;
}

.donate-card {
    width: 100%;
    max-width: 650px;
    background: #fff;
    border-radius: 24px;
    padding: 35px;
    box-shadow:
        0 10px 35px rgba(0, 0, 0, 0.06),
        0 2px 8px rgba(0, 0, 0, 0.03);
    border: 1px solid #edf0f5;
}

.donate-header {
    text-align: center;
    margin-bottom: 28px;
}

.donate-icon {
    width: 75px;
    height: 75px;
    margin: 0 auto 18px;
    border-radius: 22px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: linear-gradient(135deg, #2563eb, #4f46e5);
    color: #fff;
    font-size: 30px;
    box-shadow: 0 10px 25px rgba(37, 99, 235, 0.22);
}

.donate-header h1 {
    font-size: 25px;
    margin-bottom: 10px;
    color: #172033;
}

.donate-header p {
    color: #737b8c;
    font-size: 14px;
    line-height: 1.9;
}

.info-box {
    background: #f7f9fc;
    border: 1px solid #e9edf4;
    border-radius: 17px;
    padding: 20px;
    margin-bottom: 25px;
}

.info-box-title {
    display: flex;
    align-items: center;
    gap: 9px;
    font-size: 15px;
    font-weight: bold;
    color: #293548;
    margin-bottom: 12px;
}

.info-box-title i {
    color: #2563eb;
}

.info-box p {
    font-size: 14px;
    color: #697386;
    line-height: 2;
}

.info-box strong {
    color: #374151;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    font-size: 14px;
    font-weight: bold;
    color: #374151;
    margin-bottom: 9px;
}

.input-wrapper {
    position: relative;
}

.input-wrapper i {
    position: absolute;
    right: 15px;
    top: 50%;
    transform: translateY(-50%);
    color: #8b95a7;
    font-size: 16px;
}

.input-wrapper input {
    width: 100%;
    height: 52px;
    border: 1px solid #dfe4ec;
    border-radius: 13px;
    outline: none;
    padding: 0 45px 0 15px;
    font-family: inherit;
    font-size: 14px;
    color: #202938;
    background: #fff;
    transition: .2s;
}

.input-wrapper input:focus {
    border-color: #2563eb;
    box-shadow: 0 0 0 4px rgba(37, 99, 235, 0.08);
}

.amount-hint {
    margin-top: 8px;
    font-size: 12px;
    color: #8a93a3;
}

.amount-presets {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.amount-preset {
    border: 1px solid #dfe4ec;
    background: #fff;
    color: #596579;
    border-radius: 9px;
    padding: 8px 12px;
    cursor: pointer;
    font-family: inherit;
    font-size: 12px;
    transition: .2s;
}

.amount-preset:hover {
    border-color: #2563eb;
    color: #2563eb;
    background: #f5f8ff;
}

.donate-button {
    width: 100%;
    height: 54px;
    border: none;
    border-radius: 14px;
    background: linear-gradient(135deg, #2563eb, #4f46e5);
    color: #fff;
    font-family: inherit;
    font-size: 15px;
    font-weight: bold;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    transition: .2s;
    box-shadow: 0 8px 20px rgba(37, 99, 235, 0.18);
}

.donate-button:hover {
    transform: translateY(-2px);
    box-shadow: 0 12px 25px rgba(37, 99, 235, 0.25);
}

.donate-button:active {
    transform: translateY(0);
}

.donate-footer {
    text-align: center;
    margin-top: 20px;
    font-size: 12px;
    color: #8a93a3;
    line-height: 1.8;
}

.optional {
    color: #9aa2b1;
    font-weight: normal;
    font-size: 11px;
}

@media (max-width: 600px) {
    .donate-card {
        padding: 25px 18px;
        border-radius: 20px;
    }

    .donate-header h1 {
        font-size: 22px;
    }

    .donate-icon {
        width: 65px;
        height: 65px;
        font-size: 26px;
    }
}