body, html {
    margin: 0;
    padding: 0;
    min-height: 100%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

/* Animated background pattern */
body::before {
    content: '';
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background-image: 
        radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
        radial-gradient(circle at 40% 20%, rgba(255, 255, 255, 0.05) 0%, transparent 50%);
    z-index: -1;
    animation: float 20s ease-in-out infinite;
}

@keyframes float {
    0%, 100% { opacity: 1; transform: translateY(0px); }
    50% { opacity: 0.8; transform: translateY(-20px); }
}

.donate-container {
    max-width: 800px;
    margin: 50px auto;
    padding: 40px;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(10px);
    border-radius: 20px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1);
}

.donate-container h1 {
    text-align: center;
    color: #333;
    margin-bottom: 30px;
    font-size: 2.5em;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.donation-details {
    margin-bottom: 40px;
}

.copyable-input {
    display: flex;
    align-items: center;
    margin: 15px 0;
}

.copyable-input input {
    flex-grow: 1;
    padding: 14px;
    margin-right: 10px;
    background-color: #f9f9f9;
    border: 2px solid #e0e0e0;
    border-radius: 8px;
    font-size: 16px;
    font-family: 'Courier New', monospace;
    transition: all 0.3s ease;
}

.copyable-input input:focus {
    outline: none;
    border-color: #667eea;
    background-color: white;
}

.copy-btn {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 14px 24px;
    border-radius: 8px;
    cursor: pointer;
    transition: all 0.3s ease;
    white-space: nowrap;
    font-weight: 600;
    box-shadow: 0 4px 6px rgba(102, 126, 234, 0.3);
}

.copy-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(102, 126, 234, 0.4);
}

.copy-btn:active {
    transform: translateY(0);
}

.tooltip {
    position: relative;
    width: 100%;
}

.tooltip .tooltiptext {
    visibility: hidden;
    width: 220px;
    background-color: #333;
    color: white;
    text-align: center;
    border-radius: 8px;
    padding: 10px;
    position: absolute;
    z-index: 1;
    bottom: 125%;
    left: 50%;
    transform: translateX(-50%);
    opacity: 0;
    transition: opacity 0.3s;
    box-shadow: 0 4px 6px rgba(0, 0, 0, 0.2);
}

.tooltip .tooltiptext::after {
    content: "";
    position: absolute;
    top: 100%;
    left: 50%;
    margin-left: -5px;
    border-width: 5px;
    border-style: solid;
    border-color: #333 transparent transparent transparent;
}

.tooltip:hover .tooltiptext {
    visibility: visible;
    opacity: 1;
}

.bank-address {
    text-align: center;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.1) 0%, rgba(118, 75, 162, 0.1) 100%);
    padding: 25px;
    margin: 25px 0;
    border-radius: 10px;
    border: 2px solid rgba(102, 126, 234, 0.2);
}

.bank-address p {
    margin: 0;
    line-height: 1.8;
    color: #333;
    font-weight: 500;
    font-size: 1.05em;
}

.donation-form {
    margin-top: 50px;
}

.donation-form h2 {
    text-align: center;
    color: #333;
    margin-bottom: 30px;
    font-size: 1.8em;
}

.donation-slider-container {
    text-align: center;
    margin: 40px 0;
    padding: 30px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    border-radius: 15px;
}

#donationSlider {
    width: 80%;
    height: 8px;
    border-radius: 5px;
    background: #e0e0e0;
    outline: none;
    cursor: pointer;
    -webkit-appearance: none;
}

#donationSlider::-webkit-slider-thumb {
    -webkit-appearance: none;
    appearance: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    cursor: pointer;
    box-shadow: 0 3px 6px rgba(102, 126, 234, 0.4);
    transition: all 0.3s ease;
}

#donationSlider::-webkit-slider-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 4px 8px rgba(102, 126, 234, 0.6);
}

#donationSlider::-moz-range-thumb {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    cursor: pointer;
    border: none;
    box-shadow: 0 3px 6px rgba(102, 126, 234, 0.4);
    transition: all 0.3s ease;
}

#donationSlider::-moz-range-thumb:hover {
    transform: scale(1.2);
    box-shadow: 0 4px 8px rgba(102, 126, 234, 0.6);
}

#donationAmount {
    display: block;
    margin-top: 20px;
    font-size: 3em;
    font-weight: bold;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.donate-btn {
    display: block;
    margin: 30px auto;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border: none;
    padding: 18px 50px;
    font-size: 18px;
    font-weight: 600;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}

.donate-btn:hover {
    transform: translateY(-3px);
    box-shadow: 0 8px 25px rgba(102, 126, 234, 0.5);
}

.donate-btn:active {
    transform: translateY(-1px);
}

.donation-progress {
    margin-top: 50px;
    padding: 30px;
    background: linear-gradient(135deg, rgba(102, 126, 234, 0.05) 0%, rgba(118, 75, 162, 0.05) 100%);
    border-radius: 15px;
}

.donation-progress h3 {
    text-align: center;
    color: #333;
    margin-bottom: 20px;
    font-size: 1.5em;
}

.progress-bar {
    width: 100%;
    height: 50px;
    background-color: #e0e0e0;
    border-radius: 25px;
    overflow: hidden;
    position: relative;
    box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
}

.progress {
    height: 100%;
    background: linear-gradient(90deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-weight: bold;
    font-size: 16px;
    transition: width 0.5s ease;
    min-width: 180px;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.1);
}

.progress-text {
    text-align: center;
    margin-top: 15px;
    color: #666;
    font-size: 16px;
    font-weight: 500;
}

.message {
    padding: 18px;
    margin-bottom: 25px;
    border-radius: 10px;
    text-align: center;
    font-weight: 600;
    animation: slideDown 0.3s ease;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message.success {
    background-color: #d4edda;
    color: #155724;
    border: 2px solid #c3e6cb;
}

.message.error {
    background-color: #f8d7da;
    color: #721c24;
    border: 2px solid #f5c6cb;
}
.year-notice {
    text-align: center;
    background: linear-gradient(135deg, rgba(255, 193, 7, 0.1) 0%, rgba(255, 152, 0, 0.1) 100%);
    border: 2px solid rgba(255, 193, 7, 0.3);
    border-radius: 10px;
    padding: 12px;
    margin-bottom: 20px;
    color: #f57c00;
    font-weight: 600;
    font-size: 0.95em;
}