.contact-form {
    width: 100%;
    max-width: 640px;
    margin: 2.5rem auto;
    padding: 1.5rem;
    background: var(--primary-bg-color);
    border: solid 2px var(--border-color);
    border-radius: 16px;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.08);
    font-family: system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
}

.contact-form h1 {
    font-size: 2.1rem;
    font-weight: 700;
    color: var(--dark);
    margin: 0 0 1.8rem;
    text-align: center;
    margin: 35px 0 20px 0 !important;
    letter-spacing: -0.5px;
}

.form-group {
    margin-bottom: 1.6rem;
}

.form-row {
    display: flex;
    flex-direction: column;
    gap: 1.4rem;
}

@media (min-width: 500px) {
    .form-row {
        flex-direction: row;
        gap: 1.5rem;
    }
    
    .form-row .col {
        flex: 1;
    }
}

.form-control {
    width: 100%;
    padding: 0.95rem 1.3rem;
    font-size: 1.05rem;
    border: 2px solid var(--border-color);
    border-radius: 10px;
    background: var(--primary-bg-color);
    transition: all 0.22s ease;
    color: var(--primary-color);
}

.form-control:focus {
    outline: none;
    border-color: var(--dark);
    box-shadow: 0 0 0 4px rgba(79, 70, 229, 0.12);
}

.form-control::placeholder {
    color: var(--button-color);
    opacity: 1;
}

textarea.form-control {
    min-height: 160px;
    resize: vertical;
}

.btn {
    display: inline-block;
    width: 100%;
    padding: 1.1rem 1.5rem;
    font-weight: 600;
    background-color: var(--dark); 
    color: var(--primary-bg-color);
    border: none;
    border-radius: 10px;
    cursor: pointer;
    transition: all 0.25s ease;
    letter-spacing: 0.3px;
    font-family: inherit; 
    font-size: inherit;
}

.btn:hover {
    background-color: var(--icon-color); 
    color: var(--dark); 
    transform: translateY(-2px);
    box-shadow: 0 8px 20px var(--icon-color); 
    animation: none;
}

.btn:active {
    transform: translateY(0);
    box-shadow: 0 4px 12px rgba(17, 24, 39, 0.12);
}

@media (min-width: 768px) {
    .contact-form {
        padding: 2.8rem 3rem;
        margin: 4rem auto;
        max-width: 720px;
        border-radius: 20px;
    }

    .contact-form h1 {
        font-size: 2.6rem;
        margin-bottom: 2.2rem;
    }

    .form-control {
        padding: 1.15rem 1.5rem;
        font-size: 1.1rem;
    }

    .btn {
        padding: 1.25rem;
        font-size: 1.22rem;
    }
}