/**
 * Halojinix Navigation Styles
 * DIGNITY: Clear, accessible, consistent navigation
 *
 * @author HALO - RT370
 * @version 1.0.0
 */

/* ===== CSS VARIABLES (fallbacks) ===== */
:root {
    --hj-black: #000000;
    --hj-near-black: #050505;
    --hj-surface: #0a0a0a;
    --hj-border: #1a1a1a;
    --hj-border-subtle: #141414;
    --hj-gold: #c9a227;
    --hj-gold-bright: #d4af37;
    --hj-gold-dim: #8b7355;
    --hj-text: #e8e8e8;
    --hj-text-secondary: #888888;
    --hj-text-tertiary: #555555;
    --hj-green: #2dd4bf;
}

/* ===== HEADER ===== */
.hj-header {
    position: sticky;
    top: 0;
    z-index: 100;
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 1rem 2rem;
    background: rgba(0, 0, 0, 0.95);
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
    border-bottom: 1px solid var(--border-subtle, var(--hj-border-subtle));
}

.hj-wordmark {
    font-size: 0.875rem;
    font-weight: 500;
    letter-spacing: 0.3em;
    color: var(--gold, var(--hj-gold));
    text-transform: uppercase;
    text-decoration: none;
    transition: color 0.2s ease;
}

.hj-wordmark:hover {
    color: var(--gold-bright, var(--hj-gold-bright));
}

.hj-wordmark:focus {
    outline: 2px solid var(--gold, var(--hj-gold));
    outline-offset: 4px;
}

/* ===== NAV CONTAINER ===== */
.hj-nav {
    display: flex;
    align-items: center;
    gap: 1.5rem;
}

/* ===== BACK BUTTON ===== */
.hj-nav-back {
    padding: 0.5rem 1rem;
    font-size: 0.8125rem;
    font-weight: 400;
    color: var(--text-secondary, var(--hj-text-secondary));
    text-decoration: none;
    border: 1px solid var(--border-subtle, var(--hj-border-subtle));
    transition: all 0.2s ease;
}

.hj-nav-back:hover {
    color: var(--gold, var(--hj-gold));
    border-color: var(--gold, var(--hj-gold));
    background: rgba(201, 162, 39, 0.1);
}

.hj-nav-back:focus {
    outline: 2px solid var(--gold, var(--hj-gold));
    outline-offset: 2px;
}

/* ===== NAV LINKS ===== */
.hj-nav-links {
    display: flex;
    gap: 1.5rem;
}

.hj-nav-link {
    font-size: 0.8125rem;
    font-weight: 400;
    color: var(--text-secondary, var(--hj-text-secondary));
    text-decoration: none;
    transition: color 0.2s ease;
    position: relative;
}

.hj-nav-link:hover {
    color: var(--text, var(--hj-text));
}

.hj-nav-link.active {
    color: var(--gold, var(--hj-gold));
}

.hj-nav-link:focus {
    outline: 2px solid var(--gold, var(--hj-gold));
    outline-offset: 4px;
}

/* Active indicator */
.hj-nav-link.active::after {
    content: '';
    position: absolute;
    bottom: -0.5rem;
    left: 0;
    right: 0;
    height: 2px;
    background: var(--gold, var(--hj-gold));
}

/* ===== SIGN IN BUTTON ===== */
.hj-sign-in {
    padding: 0.5rem 1.25rem;
    font-size: 0.75rem;
    font-weight: 500;
    letter-spacing: 0.08em;
    text-transform: uppercase;
    text-decoration: none;
    border: 1px solid var(--gold, var(--hj-gold));
    color: var(--gold, var(--hj-gold));
    background: transparent;
    transition: all 0.3s ease;
}

.hj-sign-in:hover {
    background: var(--gold, var(--hj-gold));
    color: var(--black, var(--hj-black));
}

.hj-sign-in:focus {
    outline: 2px solid var(--gold, var(--hj-gold));
    outline-offset: 2px;
}

.hj-sign-in.logged-in {
    border-color: var(--green, var(--hj-green));
    color: var(--green, var(--hj-green));
}

.hj-sign-in.logged-in:hover {
    background: var(--green, var(--hj-green));
    color: var(--black, var(--hj-black));
}

/* ===== MOBILE MENU BUTTON ===== */
.hj-mobile-menu {
    display: none;
    padding: 0.5rem;
    font-size: 1.25rem;
    line-height: 1;
    background: transparent;
    border: none;
    color: var(--text, var(--hj-text));
    cursor: pointer;
    transition: color 0.2s ease;
}

.hj-mobile-menu:hover {
    color: var(--gold, var(--hj-gold));
}

.hj-mobile-menu:focus {
    outline: 2px solid var(--gold, var(--hj-gold));
    outline-offset: 2px;
}

/* ===== MOBILE NAV ===== */
.hj-mobile-nav {
    display: none;
    position: fixed;
    top: 60px;
    left: 0;
    right: 0;
    background: var(--surface, var(--hj-surface));
    border-bottom: 1px solid var(--border, var(--hj-border));
    padding: 1rem;
    flex-direction: column;
    gap: 0.25rem;
    z-index: 99;
    max-height: calc(100vh - 60px);
    overflow-y: auto;
}

.hj-mobile-nav.show {
    display: flex;
}

.hj-mobile-link {
    padding: 0.875rem 1rem;
    font-size: 0.9375rem;
    color: var(--text-secondary, var(--hj-text-secondary));
    text-decoration: none;
    transition: all 0.2s ease;
    border-radius: 4px;
}

.hj-mobile-link:hover,
.hj-mobile-link:focus {
    color: var(--gold, var(--hj-gold));
    background: rgba(201, 162, 39, 0.1);
}

.hj-mobile-link:focus {
    outline: 2px solid var(--gold, var(--hj-gold));
    outline-offset: -2px;
}

/* ===== BREADCRUMB ===== */
.hj-breadcrumb {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.75rem 2rem;
    font-size: 0.75rem;
    background: var(--near-black, var(--hj-near-black));
    border-bottom: 1px solid var(--border-subtle, var(--hj-border-subtle));
}

.hj-breadcrumb-link {
    color: var(--text-tertiary, var(--hj-text-tertiary));
    text-decoration: none;
    transition: color 0.2s ease;
}

.hj-breadcrumb-link:hover {
    color: var(--gold, var(--hj-gold));
}

.hj-breadcrumb-link:focus {
    outline: 2px solid var(--gold, var(--hj-gold));
    outline-offset: 2px;
}

.hj-breadcrumb-sep {
    color: var(--text-tertiary, var(--hj-text-tertiary));
}

.hj-breadcrumb-current {
    color: var(--text-secondary, var(--hj-text-secondary));
}

/* ===== FOOTER ===== */
.hj-footer {
    padding: 3rem 2rem;
    text-align: center;
    border-top: 1px solid var(--border-subtle, var(--hj-border-subtle));
}

.hj-footer p {
    font-size: 0.75rem;
    color: var(--text-tertiary, var(--hj-text-tertiary));
    letter-spacing: 0.1em;
}

.hj-footer-nav {
    display: flex;
    justify-content: center;
    gap: 2rem;
    margin-top: 1rem;
}

.hj-footer-nav a {
    font-size: 0.75rem;
    color: var(--text-tertiary, var(--hj-text-tertiary));
    text-decoration: none;
    transition: color 0.2s ease;
}

.hj-footer-nav a:hover {
    color: var(--gold, var(--hj-gold));
}

.hj-footer-nav a:focus {
    outline: 2px solid var(--gold, var(--hj-gold));
    outline-offset: 2px;
}

/* Escape hint in footer */
.hj-escape-hint {
    margin-top: 1.5rem;
    font-size: 0.625rem;
    color: var(--text-tertiary, var(--hj-text-tertiary));
    opacity: 0.6;
}

.hj-escape-hint kbd {
    display: inline-block;
    padding: 0.15rem 0.4rem;
    font-family: 'JetBrains Mono', 'SF Mono', monospace;
    font-size: 0.625rem;
    background: var(--border, var(--hj-border));
    border-radius: 3px;
    margin: 0 0.15rem;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    .hj-header {
        padding: 0.875rem 1rem;
    }

    .hj-nav-links {
        display: none;
    }

    .hj-sign-in {
        display: none;
    }

    .hj-mobile-menu {
        display: block;
    }

    .hj-breadcrumb {
        padding: 0.625rem 1rem;
        flex-wrap: wrap;
    }

    .hj-footer {
        padding: 2rem 1rem;
    }

    .hj-footer-nav {
        flex-wrap: wrap;
        gap: 1rem;
    }
}

@media (max-width: 480px) {
    .hj-wordmark {
        font-size: 0.75rem;
        letter-spacing: 0.2em;
    }

    .hj-nav-back {
        padding: 0.375rem 0.75rem;
        font-size: 0.75rem;
    }
}

/* ===== REDUCED MOTION ===== */
@media (prefers-reduced-motion: reduce) {
    .hj-wordmark,
    .hj-nav-back,
    .hj-nav-link,
    .hj-sign-in,
    .hj-mobile-menu,
    .hj-mobile-link,
    .hj-breadcrumb-link,
    .hj-footer-nav a {
        transition: none;
    }
}

/* ===== HIGH CONTRAST MODE ===== */
@media (prefers-contrast: high) {
    .hj-header {
        border-bottom-width: 2px;
    }

    .hj-nav-back,
    .hj-sign-in {
        border-width: 2px;
    }

    .hj-nav-link.active::after {
        height: 3px;
    }
}

/* ===== PRINT STYLES ===== */
@media print {
    .hj-header,
    .hj-mobile-nav,
    .hj-escape-hint {
        display: none;
    }

    .hj-footer {
        border-top: 1px solid #000;
        padding: 1rem;
    }

    .hj-footer-nav a {
        color: #000;
    }
}