* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
}

:root {
    --primary: #2E8B57;
    --secondary: #FF6B35;
    --light: #F8F9FA;
    --dark: #343A40;
    --accent: #1E5631;
    --error: #dc3545;
    --success: #28a745;
}

body {
    background: linear-gradient(135deg, #f8f9fa 0%, #e9ecef 100%);
    min-height: 100vh;
    color: var(--dark);
}

.container {
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 20px;
}

/* Header */
.donation-header {
    background: white;
    box-shadow: 0 2px 10px rgba(0,0,0,0.1);
    padding: 20px 0;
}

.header-content {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--primary);
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 10px;
}

.logo span {
    color: var(--secondary);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 20px;
}

.back-btn {
    background: var(--primary);
    color: white;
    padding: 10px 20px;
    border-radius: 5px;
    text-decoration: none;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.3s ease;
}

.back-btn:hover {
    background: var(--accent);
    transform: translateY(-2px);
}

/* Language Selector */
.language-selector {
    position: relative;
}

.language-btn {
    background: transparent;
    border: 2px solid var(--primary);
    border-radius: 5px;
    color: var(--dark);
    padding: 8px 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    font-weight: 500;
    transition: all 0.3s ease;
}

.language-btn:hover {
    background-color: var(--primary);
    color: white;
}

.language-options {
    position: absolute;
    top: 100%;
    right: 0;
    background: white;
    border-radius: 5px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
    padding: 10px 0;
    min-width: 150px;
    display: none;
    z-index: 1001;
}

.language-options.active {
    display: block;
}

.language-option {
    padding: 8px 15px;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 10px;
    transition: background-color 0.3s;
}

.language-option:hover {
    background-color: #f8f9fa;
}

.language-option.active {
    background-color: var(--primary);
    color: white;
}

.flag-icon {
    width: 20px;
    height: 15px;
    border-radius: 2px;
}

/* Hero Section */
.donation-hero {
    background: linear-gradient(rgba(46, 139, 87, 0.9), rgba(46, 139, 87, 0.9)), url('https://images.unsplash.com/photo-1551833086-5b5d3c8f8a12?ixlib=rb-1.2.1&auto=format&fit=crop&w=1350&q=80') no-repeat center center/cover;
    color: white;
    padding: 80px 0;
    text-align: center;
}

.donation-hero h1 {
    font-size: 3rem;
    margin-bottom: 20px;
}

.donation-hero p {
    font-size: 1.2rem;
    max-width: 600px;
    margin: 0 auto 30px;
    opacity: 0.9;
}

/* Donation Process */
.donation-process {
    padding: 80px 0;
}

.process-steps {
    display: flex;
    justify-content: center;
    margin-bottom: 50px;
    position: relative;
}

.process-steps::before {
    content: '';
    position: absolute;
    top: 25px;
    left: 20%;
    right: 20%;
    height: 3px;
    background: #e9ecef;
    z-index: 1;
}

.step {
    text-align: center;
    position: relative;
    z-index: 2;
    flex: 1;
    max-width: 200px;
}

.step-number {
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: #e9ecef;
    color: #6c757d;
    display: flex;
    align-items: center;
    justify-content: center;
    margin: 0 auto 10px;
    font-weight: bold;
    font-size: 1.2rem;
    transition: all 0.3s ease;
}

.step.active .step-number {
    background: var(--primary);
    color: white;
    transform: scale(1.1);
}

.step-label {
    font-weight: 500;
    color: #6c757d;
}

.step.active .step-label {
    color: var(--primary);
}

/* Step Content */
.step-content {
    background: white;
    border-radius: 15px;
    box-shadow: 0 10px 30px rgba(0,0,0,0.1);
    padding: 40px;
    margin-bottom: 30px;
}

.step-panel {
    display: none;
}

.step-panel.active {
    display: block;
    animation: fadeIn 0.5s ease-in;
}

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

.step-title {
    color: var(--primary);
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 10px;
    font-size: 1.5rem;
}

/* Step 1 - Amount Selection */
.amount-options {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 20px;
    margin-bottom: 30px;
}

.amount-option {
    background: #f8f9fa;
    border: 2px solid #e9ecef;
    border-radius: 10px;
    padding: 25px 15px;
    text-align: center;
    cursor: pointer;
    transition: all 0.3s ease;
}

.amount-option:hover {
    border-color: var(--primary);
    transform: translateY(-2px);
}

.amount-option.active {
    background: var(--primary);
    color: white;
    border-color: var(--primary);
    transform: scale(1.05);
}

.amount-value {
    font-size: 1.8rem;
    font-weight: bold;
    margin-bottom: 5px;
}

.amount-label {
    font-size: 0.9rem;
    opacity: 0.8;
}

.custom-amount {
    text-align: center;
    margin-top: 30px;
}

.custom-amount label {
    display: block;
    margin-bottom: 10px;
    font-weight: 500;
}

.custom-amount-input {
    display: inline-flex;
    align-items: center;
    background: white;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    padding: 0 15px;
    max-width: 200px;
}

.custom-amount-input .currency {
    font-weight: bold;
    color: var(--dark);
    margin-right: 5px;
}

.custom-amount-input input {
    border: none;
    padding: 12px 0;
    font-size: 1.1rem;
    text-align: center;
    width: 120px;
}

.custom-amount-input input:focus {
    outline: none;
}

/* Step 2 - Personal Information */
.form-group {
    margin-bottom: 25px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--dark);
}

.form-control {
    width: 100%;
    padding: 12px 15px;
    border: 2px solid #e9ecef;
    border-radius: 8px;
    font-size: 1rem;
    transition: border-color 0.3s;
}

.form-control:focus {
    border-color: var(--primary);
    outline: none;
}

.form-control.error {
    border-color: var(--error);
}

.error-message {
    color: var(--error);
    font-size: 0.875rem;
    margin-top: 5px;
    display: none;
}

.error-message.show {
    display: block;
}

.form-row {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 20px;
}

/* Step 3 - Bank Transfer */
.bank-selection {
    margin-bottom: 30px;
}

.transfer-info {
    background: #f8f9fa;
    border-radius: 10px;
    padding: 25px;
    margin: 25px 0;
    border-left: 4px solid var(--primary);
}

.transfer-info h4 {
    color: var(--primary);
    margin-bottom: 15px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.info-grid {
    display: grid;
    gap: 15px;
}

.info-item {
    display: flex;
    justify-content: space-between;
    padding: 10px 0;
    border-bottom: 1px solid #dee2e6;
}

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

.info-item strong {
    color: var(--dark);
}

.instructions {
    background: #fff3cd;
    border: 1px solid #ffeaa7;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
}

.instructions h5 {
    color: #856404;
    margin-bottom: 10px;
}

.instructions ol {
    padding-left: 20px;
}

.instructions li {
    margin-bottom: 8px;
    line-height: 1.5;
}

.important-note {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    border-radius: 8px;
    padding: 20px;
    margin: 20px 0;
}

.important-note p {
    color: #721c24;
    margin-bottom: 10px;
}

.contact-info {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 10px;
    background: white;
    border-radius: 6px;
    margin: 10px 0;
}

.contact-info i {
    color: #25D366;
    font-size: 1.2rem;
}

/* Navigation */
.step-navigation {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 40px;
    padding-top: 20px;
    border-top: 1px solid #e9ecef;
}

.btn {
    padding: 12px 30px;
    border: none;
    border-radius: 8px;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 8px;
}

.btn-secondary {
    background: #6c757d;
    color: white;
}

.btn-secondary:hover {
    background: #5a6268;
}

.btn-primary {
    background: var(--primary);
    color: white;
}

.btn-primary:hover {
    background: var(--accent);
    transform: translateY(-2px);
}

.btn-whatsapp {
    background: #25D366;
    color: white;
}

.btn-whatsapp:hover {
    background: #128C7E;
    transform: translateY(-2px);
}

.btn-large {
    padding: 15px 40px;
    font-size: 1.1rem;
}

/* Security Badges */
.security-badges {
    display: flex;
    justify-content: center;
    gap: 30px;
    margin-top: 40px;
    flex-wrap: wrap;
}

.security-badge {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 15px 20px;
    background: white;
    border-radius: 25px;
    box-shadow: 0 5px 15px rgba(0,0,0,0.1);
}

.security-badge i {
    color: var(--primary);
    font-size: 1.2rem;
}

/* Footer */
.donation-footer {
    background: var(--dark);
    color: white;
    padding: 40px 0;
    text-align: center;
    margin-top: 80px;
}

/* Responsiveness */
@media (max-width: 768px) {
    .header-content {
        flex-direction: column;
        gap: 15px;
    }

    .header-right {
        width: 100%;
        justify-content: space-between;
    }

    .process-steps::before {
        left: 15%;
        right: 15%;
    }

    .step-number {
        width: 40px;
        height: 40px;
        font-size: 1rem;
    }

    .step-label {
        font-size: 0.8rem;
    }

    .amount-options {
        grid-template-columns: repeat(2, 1fr);
    }

    .form-row {
        grid-template-columns: 1fr;
    }

    .step-content {
        padding: 25px;
    }

    .step-navigation {
        flex-direction: column;
        gap: 15px;
    }

    .step-navigation .btn {
        width: 100%;
        justify-content: center;
    }

    .security-badges {
        flex-direction: column;
        align-items: center;
    }

    .language-options {
        left: 0;
        right: 0;
    }
}

@media (max-width: 480px) {
    .amount-options {
        grid-template-columns: 1fr;
    }

    .donation-hero h1 {
        font-size: 2.2rem;
    }

    .step-title {
        font-size: 1.3rem;
    }
}