/* ============================================
   NEUROGYM — Base / Reset / Typography
   Light Theme
   ============================================ */

*,
*::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: var(--fs-body);
    line-height: 1.7;
    color: var(--color-text-primary);
    background-color: var(--color-bg-primary);
    overflow-x: hidden;
}

/* ── Headings ── */
h1,
h2,
h3,
h4,
h5,
h6 {
    font-family: var(--font-heading);
    font-weight: 800;
    line-height: 1.15;
    letter-spacing: -0.02em;
    color: var(--color-text-heading);
}

h1 {
    font-size: var(--fs-hero);
}

h2 {
    font-size: var(--fs-h2);
}

h3 {
    font-size: var(--fs-h3);
}

/* ── Links ── */
a {
    color: var(--color-indigo);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    color: var(--color-indigo-light);
}

/* ── Images ── */
img {
    max-width: 100%;
    height: auto;
    display: block;
}

/* ── Lists ── */
ul,
ol {
    list-style: none;
}

/* ── Selection ── */
::selection {
    background: var(--color-indigo);
    color: #ffffff;
}

/* ── Utility classes ── */
.text-gradient {
    background: linear-gradient(135deg, var(--color-indigo), var(--color-cyan-bright), var(--color-magenta));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-gradient-gold {
    background: linear-gradient(135deg, var(--color-gold), #e67e22, var(--color-gold));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.text-cyan {
    color: var(--color-cyan);
}

.text-gold {
    color: var(--color-gold);
}

.text-indigo {
    color: var(--color-indigo);
}

.text-muted {
    color: var(--color-text-secondary);
}

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

.container {
    width: 100%;
    max-width: var(--max-width);
    margin: 0 auto;
    padding: 0 var(--space-md);
}