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

:root {
    --primary-blue: #2563eb;
    --primary-blue-hover: #1d4ed8;
    --text-primary: #1f2937;
    --text-secondary: #6b7280;
    --border-color: #e5e7eb;
    --bg-light: #f9fafb;
    --white: #ffffff;
    --success: #10b981;
    --error: #ef4444;
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #e4e9f2 100%);
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 2rem;
    line-height: 1.6;
}

.container {
    display: grid;
    grid-template-columns: 1fr 1.2fr;
    max-width: 1200px;
    width: 100%;
    background: var(--white);
    border-radius: 24px;
    overflow: hidden;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.15);
    animation: fadeInUp 0.6s ease-out;
}

@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(30px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.form-section {
    padding: 3rem;
}

.form-header {
    margin-bottom: 2rem;
}

.form-header h1 {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 0.75rem;
}

.form-header p {
    color: var(--text-secondary);
    font-size: 0.95rem;
    line-height: 1.6;
}

.contact-form {
    display: flex;
    flex-direction: column;
    gap: 1.25rem;
}

.form-group {
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
    animation: slideIn 0.4s ease-out;
}

@keyframes slideIn {
    from {
        opacity: 0;
        transform: translateX(-10px);
    }

    to {
        opacity: 1;
        transform: translateX(0);
    }
}

.form-group label {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
}

.form-group input,
.form-group select,
.form-group textarea {
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--border-color);
    border-radius: 8px;
    font-size: 0.95rem;
    font-family: inherit;
    color: var(--text-primary);
    background: var(--white);
    transition: all 0.3s ease;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
    outline: none;
    border-color: var(--primary-blue);
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.1);
    transform: translateY(-1px);
}

.form-group input::placeholder,
.form-group textarea::placeholder {
    color: #9ca3af;
}

.form-group select {
    cursor: pointer;
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%236b7280' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    padding-right: 2.5rem;
}

.form-group textarea {
    resize: vertical;
    min-height: 100px;
}

.subcategory {
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        max-height: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        max-height: 200px;
        transform: translateY(0);
    }
}

.submit-btn {
    margin-top: 0.5rem;
    padding: 0.875rem 1.5rem;
    background: var(--primary-blue);
    color: var(--white);
    border: none;
    border-radius: 8px;
    font-size: 1rem;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.3s ease;
    box-shadow: var(--shadow-md);
    position: relative;
    overflow: hidden;
}

.submit-btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.submit-btn:hover::before {
    width: 300px;
    height: 300px;
}

.submit-btn:hover {
    background: var(--primary-blue-hover);
    transform: translateY(-2px);
    box-shadow: 0 12px 24px rgba(37, 99, 235, 0.3);
}

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

.submit-btn:disabled {
    background: #9ca3af;
    cursor: not-allowed;
    transform: none;
}

.loader {
    display: inline-block;
    width: 16px;
    height: 16px;
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 50%;
    border-top-color: var(--white);
    animation: spin 0.8s linear infinite;
}

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

.form-message {
    padding: 0.875rem 1rem;
    border-radius: 8px;
    font-size: 0.9rem;
    font-weight: 500;
    text-align: center;
    display: none;
    animation: fadeIn 0.3s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.form-message.success {
    background: #d1fae5;
    color: #065f46;
    border: 1px solid #10b981;
    display: block;
}

.form-message.error {
    background: #fee2e2;
    color: #991b1b;
    border: 1px solid #ef4444;
    display: block;
}

.testimonial-section {
    background-image: url('steel_background_1769597908522.png');
    background-size: cover;
    background-position: center;
    background-repeat: no-repeat;
    padding: 3rem;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
}

.testimonial-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.2);
    z-index: 1;
}

/* Responsive Design */
@media (max-width: 968px) {
    .container {
        grid-template-columns: 1fr;
    }

    .testimonial-section {
        order: -1;
        padding: 2rem;
    }

    .form-section {
        padding: 2rem;
    }
}

@media (max-width: 640px) {
    body {
        padding: 1rem;
    }

    .form-section {
        padding: 1.5rem;
    }

    .form-header h1 {
        font-size: 1.5rem;
    }

    .testimonial-quote {
        font-size: 1.1rem;
    }
}