/* ====================================
   4. TYPOGRAPHY
   ==================================== */
h1, h2, h3, h4, h5, h6 {
    font-weight: 900;
    line-height: 1.2;
    color: var(--gray-900);
    margin-bottom: 1rem;
}

h1 {
    font-size: 4.5rem;
    letter-spacing: -3px;
}

h2 {
    font-size: 3.5rem;
    letter-spacing: -2px;
}

h3 {
    font-size: 2.5rem;
    letter-spacing: -1px;
}

h4 {
    font-size: 2rem;
}

h5 {
    font-size: 1.5rem;
}

h6 {
    font-size: 1.25rem;
}

p {
    margin-bottom: 1rem;
    line-height: 1.8;
}

.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}