/* ============================================
   Navigation - Dynamic Island Style
   ============================================ */

.nav-island {
    position: fixed;
    top: var(--space-4);
    left: 50%;
    transform: translateX(-50%);
    z-index: var(--z-fixed);
    width: auto;
    max-width: calc(100% - var(--space-8));
}

.nav-content {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    padding: var(--space-3) var(--space-4);
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: var(--border-card);
    border-radius: var(--radius-full);
    box-shadow: var(--shadow-lg);
    transition: all var(--transition-base);
}

.nav-island.scrolled .nav-content {
    padding: var(--space-2) var(--space-4);
    background: rgba(28, 28, 30, 0.85);
}

/* Logo */
.nav-logo {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: var(--weight-bold);
    font-size: var(--text-lg);
    color: var(--color-text-primary);
}

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

.logo-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 24px;
    height: 24px;
}

.logo-icon svg {
    width: 100%;
    height: 100%;
    stroke: var(--color-hotaru-primary);
    stroke-width: 8;
    stroke-linecap: round;
    stroke-linejoin: round;
    fill: none;
}

.logo-text {
    letter-spacing: var(--tracking-tight);
}

/* Nav Links */
.nav-links {
    display: none;
    align-items: center;
    gap: var(--space-6);
}

@media (min-width: 768px) {
    .nav-links {
        display: flex;
    }
}

.nav-links a {
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-text-secondary);
    transition: color var(--transition-fast);
    white-space: nowrap;
}

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

.nav-cta {
    padding: var(--space-2) var(--space-5) !important;
    font-size: var(--text-sm) !important;
    font-weight: var(--weight-semibold) !important;
    color: #000 !important;
    background: var(--color-accent-gradient);
    border-radius: var(--radius-full);
    transition: transform var(--transition-fast), box-shadow var(--transition-fast);
}

.nav-cta:hover {
    color: #000 !important;
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(255, 107, 53, 0.4);
}

/* Mobile Toggle */
.nav-toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    gap: 5px;
    width: 24px;
    height: 24px;
    padding: 0;
}

@media (min-width: 768px) {
    .nav-toggle {
        display: none;
    }
}

.nav-toggle span {
    display: block;
    width: 100%;
    height: 2px;
    background: var(--color-text-primary);
    border-radius: var(--radius-full);
    transition: transform var(--transition-fast), opacity var(--transition-fast);
}

.nav-toggle.active span:first-child {
    transform: translateY(3.5px) rotate(45deg);
}

.nav-toggle.active span:last-child {
    transform: translateY(-3.5px) rotate(-45deg);
}

/* Mobile Menu */
.mobile-menu {
    position: fixed;
    top: 80px;
    left: 50%;
    transform: translateX(-50%) translateY(-20px);
    z-index: var(--z-dropdown);
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-4);
    padding: var(--space-6);
    min-width: 200px;
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: var(--border-card);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transition: all var(--transition-base);
}

.mobile-menu.active {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateX(-50%) translateY(0);
}

@media (min-width: 768px) {
    .mobile-menu {
        display: none;
    }
}

.mobile-menu a {
    font-size: var(--text-base);
    font-weight: var(--weight-medium);
    color: var(--color-text-secondary);
    padding: var(--space-2) var(--space-4);
    transition: color var(--transition-fast);
}

.mobile-menu a:hover {
    color: var(--color-text-primary);
}

.mobile-cta {
    margin-top: var(--space-2);
    padding: var(--space-3) var(--space-6) !important;
    font-weight: var(--weight-semibold) !important;
    color: #000 !important;
    background: var(--color-accent-gradient);
    border-radius: var(--radius-full);
}

.mobile-cta:hover {
    color: #000 !important;
}

/* Language Switcher */
.lang-switcher {
    position: relative;
}

.lang-btn {
    display: flex;
    align-items: center;
    gap: var(--space-1);
    padding: var(--space-1) var(--space-2);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-text-secondary);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.lang-btn:hover {
    color: var(--color-text-primary);
    border-color: var(--color-text-tertiary);
}

.lang-btn svg {
    opacity: 0.7;
}

.lang-dropdown {
    position: absolute;
    top: calc(100% + var(--space-2));
    right: 0;
    min-width: 120px;
    padding: var(--space-2);
    background: var(--glass-bg);
    backdrop-filter: blur(var(--glass-blur));
    -webkit-backdrop-filter: blur(var(--glass-blur));
    border: var(--border-card);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-8px);
    transition: all var(--transition-fast);
    z-index: var(--z-dropdown);
}

.lang-switcher:hover .lang-dropdown,
.lang-switcher:focus-within .lang-dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.lang-dropdown a {
    display: block;
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    color: var(--color-text-secondary);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.lang-dropdown a:hover {
    color: var(--color-text-primary);
    background: rgba(255, 255, 255, 0.05);
}

/* Mobile Language Switcher - Accordion Style */
.mobile-lang-accordion {
    width: 100%;
    margin: var(--space-2) 0;
}

.mobile-lang-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--space-2);
    width: 100%;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
    font-weight: var(--weight-medium);
    color: var(--color-text-secondary);
    background: transparent;
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.mobile-lang-toggle:hover {
    color: var(--color-text-primary);
    border-color: var(--color-text-tertiary);
}

.mobile-lang-toggle svg {
    opacity: 0.7;
}

.mobile-lang-toggle .chevron {
    transition: transform var(--transition-fast);
}

.mobile-lang-accordion.open .mobile-lang-toggle {
    color: var(--color-text-primary);
    border-color: var(--color-hotaru-primary);
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
    border-bottom-color: transparent;
}

.mobile-lang-accordion.open .mobile-lang-toggle .chevron {
    transform: rotate(180deg);
}

.mobile-lang-panel {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition-base), border-color var(--transition-base);
    border: 1px solid transparent;
    border-top: none;
    border-radius: 0 0 var(--radius-lg) var(--radius-lg);
}

.mobile-lang-accordion.open .mobile-lang-panel {
    max-height: 200px;
    border-color: var(--color-border);
}

.mobile-lang-panel a {
    display: flex;
    align-items: center;
    justify-content: center;
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-text-secondary);
    background: rgba(255, 255, 255, 0.02);
    border-top: 1px solid var(--color-border);
    transition: all var(--transition-fast);
}

.mobile-lang-panel a:first-child {
    border-top: none;
}

.mobile-lang-panel a:hover {
    color: var(--color-text-primary);
    background: rgba(255, 107, 53, 0.1);
}

/* Remove old mobile-lang styles */
.mobile-lang {
    display: none;
}

.mobile-lang-label {
    display: none;
}

.mobile-lang-links {
    display: none;
}