/* Base Styles */

html {
    scroll-behavior: smooth;
    font-size: 16px;
}

body {
    background-color: var(--color-bg-body);
    color: var(--color-text-primary);
    font-family: var(--font-sans);
    line-height: var(--line-height-base);
    transition: background-color var(--transition-medium), color var(--transition-medium);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Typography Defaults */
h1,
h2,
h3,
h4,
h5,
h6 {
    color: var(--color-text-primary);
    line-height: var(--line-height-heading);
    margin-bottom: var(--space-sm);
    font-weight: var(--font-weight-heavy);
    letter-spacing: -0.03em;
}

h1 {
    font-size: 2.75rem;
    margin-bottom: var(--space-md);
    font-weight: var(--font-weight-black);
    letter-spacing: -0.04em;
}

h2 {
    font-size: 2rem;
    margin-top: var(--space-lg);
    border-bottom: 3px solid var(--color-accent);
    padding-bottom: var(--space-sm);
    font-weight: var(--font-weight-heavy);
    position: relative;
}

h2::after {
    content: '';
    position: absolute;
    bottom: -3px;
    left: 0;
    width: 60px;
    height: 3px;
    background: var(--gradient-accent);
}

h3 {
    font-size: 1.5rem;
    font-weight: var(--font-weight-bold);
    color: var(--color-text-primary);
}

p {
    margin-bottom: var(--space-md);
    color: var(--color-text-secondary);
    line-height: 1.7;
}

a {
    color: var(--color-accent);
    text-decoration: none;
    font-weight: var(--font-weight-medium);
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-accent-hover);
    text-decoration: underline;
}

/* Layout Containers */
.container {
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}

#app {
    display: flex;
    flex-direction: column;
    min-height: 100vh;
}

#main-content {
    flex: 1;
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: var(--space-lg) var(--space-md);
}

/* Images */
img {
    max-width: 100%;
    height: auto;
    border-radius: var(--radius-sm);
}

/* Utilities */
.text-muted {
    color: var(--color-text-tertiary);
}

.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    border: 0;
}

/* --- Responsive Typography --- */
@media (max-width: 768px) {
    h1 {
        font-size: 1.75rem;
    }

    h2 {
        font-size: 1.5rem;
        margin-top: var(--space-md);
    }

    h3 {
        font-size: 1.15rem;
    }

    .container,
    #main-content {
        padding-left: var(--space-sm);
        padding-right: var(--space-sm);
    }
}