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

html,
body {
    height: 100%;
}

body {
    background: var(--color-bg-secondary);
    color: var(--color-text-primary);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

::-webkit-scrollbar {
    width: var(--space-sm);
    height: var(--space-sm);
}

::-webkit-scrollbar-track {
    background: var(--color-bg-secondary);
}

::-webkit-scrollbar-thumb {
    background: var(--color-border);
    border-radius: var(--space-xs);
    transition: background var(--transition-fast);
}

header {
    background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-secondary) 100%);
    color: var(--color-white);
    padding: var(--space-2xl) var(--space-2xl);
    box-shadow: 0 0.75rem 2rem color-mix(in srgb, var(--color-primary) 25%, transparent);
    position: relative;
    overflow: hidden;
}

header h1 {
    font-size: 2.125rem;
    font-weight: 700;
    letter-spacing: -0.0375rem;
    position: relative;
    z-index: 1;
    margin-bottom: var(--radius-sm);
    text-shadow: 0 0.125rem 0.625rem color-mix(in srgb, #000000 15%, transparent);
    background: linear-gradient(135deg, var(--color-white) 0%, color-mix(in srgb, var(--color-white) 90%, transparent) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

#main-container {
    display: flex;
}

main {
    display: flex;
    gap: var(--space-xl);
    padding: var(--space-xl) var(--space-2xl);
    height: calc(100vh - 13.75rem);
    overflow: hidden;
}

html {
    scroll-behavior: smooth;
}

::selection {
    background: var(--color-primary);
    color: var(--color-white);
}

::-moz-selection {
    background: var(--color-primary);
    color: var(--color-white);
}

.skip-link {
    position: absolute;
    top: -6.25rem;
    left: 0;
    background: var(--color-primary);
    color: var(--color-white);
    padding: var(--space-lg) var(--space-xl);
    text-decoration: none;
    border-radius: 0 0 var(--radius-md) 0;
    font-weight: 600;
    z-index: 10000;
    transition: top var(--transition-fast);
    box-shadow: 0 0.75rem 2rem 0 color-mix(in srgb, var(--color-text-primary) 12%, transparent);
}

.visually-hidden {
    position: absolute;
    width: 0.0625rem;
    height: 0.0625rem;
    padding: 0;
    margin: -0.0625rem;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border-width: 0;
}

fieldset {
    border: 0.0625rem solid var(--color-border);
    border-radius: var(--radius-md);
    padding: var(--space-xl);
    margin-bottom: var(--space-xl);
}

fieldset legend {
    font-weight: 600;
    color: var(--color-text-primary);
    padding: 0 var(--space-sm);
    font-size: 1.125rem;
}