/* ===== Navigation ===== */
.nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(10, 10, 11, 0.8);
    backdrop-filter: blur(12px);
    border-bottom: 1px solid var(--border-light);
    transition: top 1s ease-out;
}

.nav-container {
    max-width: var(--container-max);
    margin: 0 auto;
    padding: var(--space-md) var(--container-padding);
    display: flex;
    align-items: center;
    justify-content: space-between;
}

.nav-brand {
    display: flex;
    flex-direction: column;
    gap: var(--space-xs);
}

.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-weight: 600;
    font-size: 1.4rem;
}

.logo-symbol {
    color: var(--accent-primary);
    font-family: var(--font-mono);
    font-size: 1.25rem;
}

/* Nav Tagline Badge */
.nav-tagline {
    display: inline-flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-xs) var(--space-md);
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    color: var(--text-secondary);
    width: fit-content;
    margin-left: calc(1.25rem + var(--space-sm));
    animation: tagline-glow 3s ease-in-out infinite;
    transition: all var(--transition-base);
}

.nav-tagline .status {
    color: #22c55e;
}

.nav-tagline:hover {
    animation: none;
    border-color: var(--border-light);
    box-shadow: 0 0 15px rgba(34, 197, 94, 0.2);
    transform: translateY(-1px);
}

.nav-tagline a {
    color: var(--text-tertiary);
    transition: color var(--transition-fast);
}

.nav-tagline a:hover {
    color: var(--accent-primary);
}

/* Nav Links */
.nav-links {
    display: flex;
    gap: var(--space-xl);
}

.nav-links a {
    color: var(--text-secondary);
    font-size: 1rem;
    font-weight: 500;
    transition: color var(--transition-fast);
}

.nav-links a:hover {
    color: var(--text-primary);
}

/* Nav Dropdown */
.nav-dropdown {
    position: relative;
}

.nav-dropdown-trigger {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
}

.nav-dropdown-trigger::after {
    content: '';
    border: 4px solid transparent;
    border-top-color: currentColor;
    margin-top: 2px;
    transition: transform var(--transition-fast);
}

.nav-dropdown:hover .nav-dropdown-trigger::after {
    transform: rotate(180deg);
}

.nav-dropdown-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    min-width: 160px;
    background: var(--bg-secondary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    padding: var(--space-sm);
    margin-top: var(--space-sm);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
    z-index: 100;
}

.nav-dropdown:hover .nav-dropdown-menu {
    opacity: 1;
    visibility: visible;
}

.nav-dropdown-menu a {
    display: block;
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    font-size: 0.8125rem;
    color: var(--text-secondary);
    transition: all var(--transition-fast);
}

.nav-dropdown-menu a:hover {
    background: var(--bg-tertiary);
    color: var(--accent-primary);
}

/* Nav Toggle (Mobile) */
.nav-toggle {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    cursor: pointer;
    padding: var(--space-sm);
}

.nav-toggle span {
    width: 24px;
    height: 2px;
    background: var(--text-primary);
    transition: var(--transition-fast);
}

/* Language Switch Button */
.lang-switch {
    display: inline-flex !important;
    align-items: center;
    justify-content: center;
    font-size: 1.5rem !important;
    line-height: 1;
    padding: 0 !important;
    margin-left: var(--space-sm);
    border-radius: var(--radius-md);
    transition: all var(--transition-fast);
    text-decoration: none !important;
}

.lang-switch:hover {
    transform: scale(1.15);
    filter: brightness(1.1);
}