/* ===========================
   GUT — Base / Reset
   =========================== */

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

html {
    scroll-behavior: smooth;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-body);
    font-size: 18px;
    line-height: 1.6;
    color: var(--color-text-dark);
    background-color: var(--color-light);
    overflow-x: hidden;
}

img {
    display: block;
    max-width: 100%;
    height: auto;
}

a {
    text-decoration: none;
    color: inherit;
    transition: opacity var(--transition-fast);
}

a:hover {
    opacity: 0.8;
}

h1, h2, h3, h4 {
    font-family: var(--font-display);
    font-weight: 400;
    line-height: 1.1;
    letter-spacing: 0.02em;
}

h1 {
    font-size: clamp(2.5rem, 6vw, 5rem);
}

h2 {
    font-size: clamp(2rem, 4vw, 3.5rem);
}

h3 {
    font-size: clamp(1.5rem, 3vw, 2rem);
}

p {
    font-family: var(--font-body);
    font-size: clamp(1rem, 1.1vw, 1.2rem);
    line-height: 1.6;
    margin: 0;
}

/* Utility */
.container {
    width: 90%;
    max-width: var(--max-width);
    margin: 0 auto;
}

/* Fade-in animation for page content */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(20px); }
    to   { opacity: 1; transform: translateY(0); }
}

.fade-in {
    opacity: 0;
    transform: translateY(20px);
    transition: opacity var(--transition-slow), transform var(--transition-slow);
}

.fade-in.visible {
    opacity: 1;
    transform: translateY(0);
}