:root {
    --primary: #2563eb;
    --primary-dark: #1d4ed8;
    --primary-light: #eff6ff;
    --border: #e2e8f0;
    --text: #0f172a;
    --text-muted: #64748b;
    --text-light: #94a3b8;
    --error: #ef4444;
    --success: #10b981;
    --white: #ffffff;
    --radius: 14px;
    --shadow: 0 4px 24px -6px rgba(15, 23, 42, 0.06);
    --transition: all 0.2s ease;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    -webkit-tap-highlight-color: transparent;
}

body {
    background: #f5f7fa;
    min-height: 100vh;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

.header {
    background: var(--white);
    padding: 16px 20px;
    box-shadow: 0 1px 3px rgba(15, 23, 42, 0.08);
    position: relative;
    z-index: 2;
}

.logo-area img {
    height: 34px;
    width: auto;
}

.main-container {
    max-width: 480px;
    margin: 24px auto;
    padding: 0 16px;
}

.payment-steps {
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    margin: 0 auto 32px;
    padding: 20px;
    max-width: 440px;
}

.payment-steps::before {
    content: '';
    position: absolute;
    top: 45%;
    left: 80px;
    right: 80px;
    height: 2px;
    background: var(--border);
    z-index: 1;
}

.step {
    position: relative;
    z-index: 2;
    background: #f5f7fa;
    padding: 0 12px;
    text-align: center;
    display: flex;
    flex-direction: column;
    align-items: center;
    width: 85px;
}

.step-icon {
    width: 46px;
    height: 46px;
    background: var(--white);
    border: 2px solid var(--border);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: 8px;
    color: var(--text-light);
    font-size: 16px;
    transition: var(--transition);
    box-shadow: 0 2px 4px rgba(148, 163, 184, 0.1);
}

.step.active .step-icon {
    background: var(--primary);
    border-color: var(--primary);
    color: var(--white);
    box-shadow: 0 4px 12px rgba(37, 99, 235, 0.2);
}

.step-text {
    font-size: 13px;
    color: var(--text-muted);
    font-weight: 500;
    white-space: nowrap;
}

.step.active .step-text {
    color: var(--primary);
    font-weight: 600;
}

.form-container {
    background: var(--white);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 32px 28px;
}

.form-title {
    font-size: 24px;
    color: var(--text);
    margin-bottom: 12px;
    text-align: center;
    font-weight: 600;
    letter-spacing: -0.5px;
}

.form-description {
    text-align: center;
    color: var(--text-muted);
    margin-bottom: 28px;
    font-size: 14px;
    padding: 0 10px;
    line-height: 1.6;
}

.notification-alert {
    text-align: center;
    padding: 15px;
    background: #fff8e1;
    border: 1px solid #ffe57f;
    border-radius: var(--radius);
    color: #b38f00;
    font-size: 13px;
    margin: 20px 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
}

.bank-list {
    margin: 20px 0;
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
}

.bank-item {
    padding: 16px;
    border-bottom: 1px solid var(--border);
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: var(--white);
    transition: var(--transition);
}

.bank-item:hover {
    background: var(--primary-light);
}

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

.bank-info {
    flex: 1;
}

.bank-name {
    font-weight: 600;
    color: var(--text);
    font-size: 15px;
    margin-bottom: 4px;
}

.bank-iban {
    color: var(--text-muted);
    font-size: 13px;
    font-family: monospace;
    letter-spacing: 0.5px;
}

.bank-holder {
    color: var(--text-light);
    font-size: 13px;
    margin-top: 2px;
}

.copy-btn {
    background: var(--primary-light);
    color: var(--primary);
    border: none;
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    font-weight: 500;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
}

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

.form-group {
    margin-bottom: 22px;
    position: relative;
}

.form-group i {
    position: absolute;
    left: 16px;
    top: 43px;
    color: var(--text-light);
    font-size: 16px;
    transition: var(--transition);
    pointer-events: none;
}

label {
    display: block;
    margin-bottom: 8px;
    color: var(--text);
    font-weight: 500;
    font-size: 14px;
}

input, select {
    width: 100%;
    padding: 16px 18px 16px 48px;
    border: 1.5px solid var(--border);
    border-radius: var(--radius);
    font-size: 15px;
    transition: var(--transition);
    background: var(--white);
    color: var(--text);
    -webkit-appearance: none;
    appearance: none;
}

select {
    cursor: pointer;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='%2364748b' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpolyline points='6 9 12 15 18 9'%3E%3C/polyline%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 16px center;
    background-size: 16px;
    padding-right: 48px;
}

input:focus, select:focus {
    border-color: var(--primary);
    outline: none;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
}

input:focus + i {
    color: var(--primary);
}

.submit-btn {
    background: var(--primary);
    color: var(--white);
    width: 100%;
    padding: 16px;
    border: none;
    border-radius: var(--radius);
    font-size: 15px;
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 28px;
}

.submit-btn:hover {
    background: var(--primary-dark);
}

.modal {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    background: rgba(15, 23, 42, 0.6);
    backdrop-filter: blur(4px);
    z-index: 1000;
    padding: 20px;
}

.modal-content {
    background: var(--white);
    border-radius: var(--radius);
    max-width: 440px;
    margin: 40px auto;
    padding: 28px;
    position: relative;
    animation: modalShow 0.3s ease;
}

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

.modal-title {
    font-size: 20px;
    font-weight: 600;
    margin-bottom: 20px;
    color: var(--text);
    text-align: center;
}

.close-modal {
    position: absolute;
    right: 20px;
    top: 20px;
    background: none;
    border: none;
    color: var(--text-light);
    cursor: pointer;
    font-size: 20px;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
}

.close-modal:hover {
    background: var(--primary-light);
    color: var(--primary);
}

@media (max-width: 480px) {
    .payment-steps {
        padding: 15px 10px;
    }

    .payment-steps::before {
        left: 50px;
        right: 50px;
    }

    .step-icon {
        width: 40px;
        height: 40px;
        font-size: 14px;
    }

    .step-text {
        font-size: 11px;
    }

    .form-container {
        padding: 24px 20px;
    }

    .modal-content {
        padding: 20px;
        margin: 20px auto;
    }
}