body {
    font-family: Poppins, Poppins Fallback;
    overflow-x: hidden;
    /* //reset default margin and padding */
    margin: 0;
    padding: 0;

}

:root {
    --primary-yellow: #FFF000;
    --dark-yellow: #edcd00;
    --black: #1a1a1a;
    --dark-gray: #2d2d2d;
    --light-gray: #f8f9fa;
    --border-color: #e1e5e9;
    --success-color: #28a745;
    --error-color: #dc3545;
    --warning-color: #ffc107;
    --text-muted: #6c757d;
    --white: #ffffff;
    --shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 20px 60px rgba(0, 0, 0, 0.15);
}

h1 {
    margin-top: 0;
    margin-bottom: 0px;
}

.btn.btn-primary {
    background: linear-gradient(135deg, var(--primary-yellow), var(--dark-yellow));
    color: var(--black);
    border: none;
    padding: 10px 20px;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow);
    margin-top: 5px;
    margin-bottom: 5px;
    text-decoration: none;
}

.invoice-form-wrapper {
    max-width: 800px;
    margin: 0 auto;
    padding: 20px 10px;
}

.invoice-header {
    text-align: center;
    margin-bottom: 40px;
    width: 100%;
    max-width: 100%;
}

.invoice-logo {
    background: #EDEDED;
    padding-top: .75rem;
    padding-bottom: .75rem;
    padding-left: 1.5rem;
    padding-right: 1.5rem;
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: fixed;
    width: 100%;
    max-width: 1024px;
    margin: 0 auto;
    left: 0;
    right: 0;
    border-radius: 1rem;
    top: 20px;
    z-index: 10;
    
    @media (max-width: 1200px) {
        max-width: 90vw;
    }

    @media (max-width: 768px) {
        padding: 1rem;
        max-width: 90%;
        gap: 0;

        img {
            max-height: 25px !important;
        }

        a {
            font-size: 0.6rem;
        }
    }
}

.logo-link {
    background-color: #FFF000;
    color: var(--black);
    displaY: flex;
    padding: 5px 10px;
    align-items: center;
    justify-content: center;
    ;
    text-align: center;
    text-decoration: none;
    font-weight: 600;
}

.invoice-logo i {
    font-size: 48px;
    color: var(--black);
}

.invoice-header h1 {
    font-size: 2.5rem;
    font-weight: 700;
    color: var(--black);
    margin-bottom: 10px;
}

.invoice-header p {
    font-size: 1.1rem;
    color: var(--text-muted);
    max-width: 600px;
    margin: 0 auto;
}

.order-info {
    background: linear-gradient(135deg, #e3f2fd, #bbdefb);
    border: 1px solid #90caf9;
    border-radius: 12px;
    padding: 20px;
    margin-bottom: 30px;
    display: flex;
    align-items: center;
    gap: 15px;

    ul {
        margin: 5px 0;
        padding-left: 20px;
        font-size: 0.9rem;
        color: var(--text-muted);

        @media (max-width: 768px) {
            font-size: 0.7rem;
        }
    }
}

.order-info i {
    color: #1976d2;
    font-size: 1.5rem;
    flex-shrink: 0;
}

.order-info-content h3 {
    color: var(--black);
    font-size: 1.1rem;
    font-weight: 600;
    margin-bottom: 5px;
    margin-top: 0;

    @media (max-width: 768px) {
        font-size: 1rem;
    }
}

.order-info-content p {
    color: #1565c0;
    font-size: 0.95rem;
    margin: 0;

    @media (max-width: 768px) {
        font-size: 0.75rem;
    }
}

/* Reszta stylów skopiowanych z głównego pliku HTML */
.form-card {
    background: var(--white);
    border-radius: 20px;
    padding: 40px;
    box-shadow: var(--shadow-lg);
    border: 1px solid var(--border-color);
    position: relative;
    overflow: hidden;
}

.form-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary-yellow), var(--dark-yellow));
}

.form-header {
    text-align: center;
    margin-bottom: 30px;
}

.form-header h2 {
    font-size: 1.8rem;
    font-weight: 600;
    color: var(--black);
    margin-bottom: 8px;
}

.form-header p {
    color: var(--text-muted);
    font-size: 1rem;
}

.form-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 20px;
    margin-bottom: 30px;
}

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

.form-group {
    position: relative;
    margin-bottom: 0;
}

.form-group.full-width {
    grid-column: 1 / -1;
}

.form-input {
    width: 100%;
    padding: 16px 16px 16px 16px;
    border: 2px solid var(--border-color);
    border-radius: 12px;
    font-size: 1rem;
    font-family: inherit;
    background: var(--white);
    transition: all 0.3s ease;
    outline: none;
}

.form-input:focus {
    border-color: var(--dark-yellow);
    box-shadow: 0 0 0 3px rgba(255, 215, 0, 0.1);
}

.form-input:not(:placeholder-shown)+.form-label,
.form-input:focus+.form-label {
    transform: translateY(-28px) scale(0.85);
    color: var(--dark-yellow);
    background: var(--white);
    padding: 0 8px;
}

.form-label {
    position: absolute;
    left: 16px;
    top: 18px;
    color: var(--text-muted);
    font-size: 1rem;
    font-weight: 400;
    transition: all 0.3s ease;
    pointer-events: none;
    background: transparent;
}

.form-input.error {
    border-color: var(--error-color);
    box-shadow: 0 0 0 3px rgba(220, 53, 69, 0.1);
}

.form-input.success {
    border-color: var(--success-color);
    box-shadow: 0 0 0 3px rgba(40, 167, 69, 0.1);
}

.error-message {
    color: var(--error-color);
    font-size: 0.85rem;
    margin-top: 5px;
    display: none;
    font-weight: 500;
}

.required::after {
    content: '*';
    color: var(--error-color);
    margin-left: 4px;
}

.notification {
    padding: 16px 20px;
    border-radius: 12px;
    margin-bottom: 20px;
    display: none;
    align-items: center;
    gap: 12px;
    font-weight: 500;
    span{
        width: 100%;
        display: flex;
        flex-wrap: wrap;
    }
}

.notification.success {
    background: #d4edda;
    border: 1px solid #c3e6cb;
    color: #155724;
}

.notification.error {
    background: #f8d7da;
    border: 1px solid #f5c6cb;
    color: #721c24;
}

.submit-btn {
    width: 100%;
    background: linear-gradient(135deg, var(--primary-yellow), var(--dark-yellow));
    color: var(--black);
    border: none;
    padding: 18px 24px;
    font-size: 1.1rem;
    font-weight: 600;
    border-radius: 12px;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
}

.submit-btn:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(255, 215, 0, 0.4);
}

.submit-btn:disabled {
    background: #6c757d;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
}

.submit-btn .spinner {
    display: none;
    width: 20px;
    height: 20px;
    border: 2px solid var(--black);
    border-top: 2px solid transparent;
    border-radius: 50%;
    animation: spin 1s linear infinite;
}

.submit-btn.loading .spinner {
    display: block;
}

.submit-btn.loading .btn-text {
    display: none;
}

@keyframes spin {
    to {
        transform: rotate(360deg);
    }
}

@media (max-width: 768px) {
    .form-row {
        grid-template-columns: 1fr;
        gap: 15px;
    }

    .invoice-header h1 {
        font-size: 2rem;
    }

    .form-card {
        padding: 25px;
        border-radius: 15px;
    }
}