@import url("./variables.css");

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

html,
body {
    margin: 0;
    padding: 0;
    height: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-body);
    background: var(--bg-primary);
    color: var(--text-primary);
    background: linear-gradient(
        180deg,
        rgba(0, 0, 0, 0) 92%,
        rgba(149, 87, 181, 1) 100%
    );
    display: flex;
    flex-direction: column;
}

a {
    color: inherit;
    text-decoration: none;
}

a:hover {
    text-decoration: none;
}

body > header {
    flex-shrink: 0;
    background: linear-gradient(
        180deg,
        var(--gradient-1) 0%,
        var(--gradient-2) 33%,
        var(--gradient-3) 66%,
        var(--gradient-4) 100%
    );
}

body > header nav {
    padding: var(--space-s) var(--space-s);
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: var(--step-2);
}

.nav-logo {
    font-family: var(--font-display);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent-foreground);
    text-decoration: none;
    text-shadow:
        0 0 16px var(--header-shadow-strong),
        0 0 32px var(--header-shadow-soft);
}

.nav-left {
    display: flex;
    align-items: center;
    gap: var(--space-l);
}

.nav-left-links,
.nav-right-links {
    font-family: var(--font-display);
    display: flex;
    gap: var(--space-l);
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

body > header nav > a {
    font-family: var(--font-display);
    /*font-size: var(--step-0);*/
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent-foreground);
    text-decoration: none;
}

body > header nav > ul {
    display: flex;
    gap: var(--space-l);
    align-items: center;
    list-style: none;
    margin: 0;
    padding: 0;
}

body > header nav ul a {
    font-size: var(--step--1);
    letter-spacing: 0.12em;
    text-transform: uppercase;
    color: var(--accent-foreground);
    text-decoration: none;
    transition: opacity 0.15s;
}

/* Subtle shadow on all header text to improve legibility against the gradient */
body > header nav > a,
body > header nav ul a {
    text-shadow:
        0 0 16px var(--header-shadow-strong),
        0 0 32px var(--header-shadow-soft);
}

body > header nav ul a:hover {
    opacity: 1;
}

body > header nav ul a[aria-current="page"] {
    opacity: 1;
    border-bottom: 1px solid var(--header-nav-active-border);
    padding-bottom: 1px;
}

main {
    flex: 1;
    min-height: 0;
}

/* ============================================================
   SEARCH BAR (shared)
   ============================================================ */
.header-search-wrap {
    padding: 0 0;
    flex-shrink: 0;
    background-color: var(--gradient-4);
    background: linear-gradient(180deg, var(--gradient-4) 0%, #ffffffee 100%);
}

.header-search-wrap form[role="search"] {
    display: flex;
    align-items: center;
    gap: var(--space-2xs);
    padding: var(--space-3xs) var(--space-s);
    border: 1px solid var(--accent-primary);
    border-radius: 10px;
    background: var(--bg-primary);
    width: 100%;
    color: var(--accent-primary);
}

.header-search-wrap form[role="search"] svg {
    color: var(--text-tertiary);
    flex-shrink: 0;
    width: 16px;
    height: 16px;
    stroke: var(--accent-primary);
}

.header-search-wrap form[role="search"] input {
    flex: 1;
    border: none;
    font-size: var(--step--1);
    color: var(--text-primary);
    background: transparent;
    padding: var(--space-3xs) 0;
    font-family: inherit;
}

.header-search-wrap form[role="search"] input::placeholder {
    color: var(--accent-primary);
}

/* ============================================================
   ACCESSIBILITY UTILITIES
   ============================================================ */

/* Visually-hidden but screen-reader-accessible */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Skip-to-content link (visible only on keyboard focus) */
.skip-link {
    position: absolute;
    top: -999px;
    left: 1rem;
    z-index: 9999;
    padding: var(--space-2xs) var(--space-s);
    background: var(--accent-primary);
    color: var(--text-primary);
    font-size: var(--step--1);
    font-weight: 600;
    text-decoration: none;
    border-radius: 0 0 4px 4px;
}

.skip-link:focus {
    top: 0;
}

/* Consistent keyboard-focus outline for all interactive elements */
:focus-visible {
    outline: 2px solid var(--accent-primary);
    outline-offset: 2px;
}

/* Respect user motion preferences */
@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        transition-duration: 0.01ms !important;
        animation-duration: 0.01ms !important;
    }
}
