/* Header & Navigation Styles */
.header {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: var(--header-height);
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-color);
    z-index: 100;
    transition: var(--transition-all);
    overflow: visible;
}

.header.scrolled {
    box-shadow: var(--shadow-lg);
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
    background-color: rgba(255, 255, 255, 0.95);
}

[data-theme="dark"] .header.scrolled {
    background-color: rgba(17, 24, 39, 0.95);
}

/* Navigation */
.nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: 100%;
    position: relative;
    z-index: 1;
}

.header .nav.container {
    max-width: none;
    padding-left: 0.9rem;
    padding-right: 1.5rem;
}

.nav__actions {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    margin-left: var(--space-lg);
}

/* Logo */
.nav__logo {
    display: flex;
    align-items: center;
    gap: 0.06rem;
    position: relative;
}

.nav__logo a {
    display: flex;
    align-items: center;
    gap: 0.35rem;
    transition: transform var(--transition-base);
}

.nav__logo a::after {
    content: "NJB CodeMasters";
    display: inline-flex;
    align-items: center;
    font-size: clamp(0.9rem, 1.3vw, 1.08rem);
    font-weight: 700;
    letter-spacing: 0.01em;
    color: var(--text-primary);
    background: linear-gradient(120deg, var(--text-primary), var(--primary-color));
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
    text-shadow: 0 2px 12px rgba(59, 130, 246, 0.18);
}

.nav__logo a:hover {
    transform: scale(1.05);
}

.logo {
    filter: drop-shadow(0 2px 4px rgba(0, 0, 0, 0.1));
    transition: filter var(--transition-base);
}

.logo:hover {
    filter: drop-shadow(0 4px 8px rgba(0, 0, 0, 0.2));
}

/* Shared logo image sizing */
.logo--image {
    height: clamp(56px, 7vh, 70px);
    width: auto;
    max-width: 80px;
    object-fit: contain;
    background: transparent;
    margin-right: 0;
}

.logo-theme {
    display: block;
    position: relative;
    flex: 0 0 auto;
    height: clamp(56px, 7vh, 70px);
    aspect-ratio: 472 / 620;
}

.logo-theme .logo--image {
    position: absolute;
    inset: 0;
    display: block;
    width: 100%;
    height: 100%;
    max-width: none;
    margin: 0;
    padding: 0;
    object-fit: contain;
    background: transparent;
    border: 0;
    border-radius: 0;
    filter: drop-shadow(0 3px 8px rgba(37, 99, 235, 0.4));
}

.logo-theme .logo--light {
    display: block;
}

.logo-theme .logo--dark {
    display: none;
}

:root[data-theme="dark"] .logo-theme .logo--light {
    display: none;
}

:root[data-theme="dark"] .logo-theme .logo--dark {
    display: block;
}

/* Navigation Menu - Positioned on Body (outside header overflow) */
.nav__menu {
    position: fixed;
    top: var(--header-height);
    left: 20px;
    width: 250px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    padding: 0;
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all 0.2s ease;
    z-index: 10000;
    max-height: 70vh;
    overflow-y: auto;
    list-style: none;
    margin: 0;
    pointer-events: none;
}

.nav__menu.active {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
    pointer-events: auto;
}

.nav__item {
    display: flex;
    align-items: center;
    min-height: 45px;
    border-bottom: 1px solid var(--border-color);
}

.nav__item:last-child {
    border-bottom: none;
}

.nav__item--legacy details {
    width: 100%;
}

.nav__item--legacy summary {
    cursor: pointer;
}

.nav__legacy-links {
    list-style: none;
    padding: 0;
}

@media (max-width: 480px) {
    .nav__menu {
        left: 12px;
        width: min(250px, calc(100vw - 24px));
    }
}

.nav__link {
    padding: var(--space-md) var(--space-lg);
    font-size: var(--font-size-sm);
    white-space: normal;
    width: 100%;
    text-align: left;
    display: flex;
    align-items: center;
    transition: background-color var(--transition-base), color var(--transition-base);
    border-radius: 0;
    min-height: 100%;
    color: var(--text-primary);
}

.nav__link:hover,
.nav__link.active {
    background-color: var(--bg-secondary);
    color: var(--primary-color);
}

.nav__link::after {
    display: none;
}

.nav__actions {
    gap: var(--space-sm) !important;
    margin-left: auto !important;
}

/* Removed duplicate rules - consolidated above */

.nav__link:hover,
.nav__link.active {
    color: var(--primary-color);
}

/* Special CodeMasters OS Link */
.nav__item--highlight {
    position: relative;
}

.nav__link--special {
    display: flex;
    align-items: center;
    gap: 0.5rem;
    padding: 0.5rem 1rem;
    background: linear-gradient(135deg, #3b82f6 0%, #2563eb 100%);
    border-radius: 0.75rem;
    color: white !important;
    font-weight: 700;
    transition: all 0.3s ease;
    box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
    animation: pulse-glow 2s ease-in-out infinite;
}

.nav__link--special:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 25px rgba(59, 130, 246, 0.5);
    background: linear-gradient(135deg, #60a5fa 0%, #3b82f6 100%);
}

.nav__link-icon {
    font-size: 1.2rem;
    animation: icon-bounce 1s ease-in-out infinite;
}

.nav__link-badge {
    padding: 0.125rem 0.5rem;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 9999px;
    font-size: 0.625rem;
    font-weight: 900;
    letter-spacing: 0.05em;
    -webkit-backdrop-filter: blur(10px);
    backdrop-filter: blur(10px);
}

@keyframes pulse-glow {
    0%, 100% {
        box-shadow: 0 4px 15px rgba(59, 130, 246, 0.3);
    }
    50% {
        box-shadow: 0 4px 25px rgba(59, 130, 246, 0.6);
    }
}

@keyframes icon-bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-3px);
    }
}

/* Mobile Responsive */
@media (max-width: 768px) {
    .header .nav.container {
        padding-left: 0.65rem;
        padding-right: 1.25rem;
    }

    .nav__logo a::after {
        font-size: 0.82rem;
    }

    .nav__logo .logo-theme {
        height: clamp(46px, 8vw, 56px);
    }

    .nav__link--special {
        width: 100%;
        justify-content: center;
        margin-top: 0;
    }
    
    .theme-toggle {
        position: relative;
        top: auto;
        right: auto;
        transform: none;
        margin-left: 0;
    }
}

@media (max-width: 560px) {
    .nav__logo a::after {
        display: none;
    }

    .nav__logo .logo-theme {
        height: clamp(42px, 9vw, 50px);
    }
}

.nav__link:hover::after,
.nav__link.active::after {
    width: 80%;
}

/* Theme Toggle */
.theme-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    min-width: 44px;
    height: 44px;
    padding: 0 12px;
    border-radius: var(--radius-lg);
    background-color: var(--bg-secondary);
    border: none;
    transition: var(--transition-all);
    margin-left: 0;
    position: relative;
    cursor: pointer;
}

.theme-toggle:hover {
    background-color: var(--bg-tertiary);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.theme-toggle svg {
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 24px;
    height: 24px;
    transition: opacity 0.8s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center center;
    pointer-events: none;
}

.theme-toggle svg line,
.theme-toggle svg circle,
.theme-toggle svg path {
    transition: stroke 0.3s ease;
    transform-origin: center center;
}

.theme-toggle .toggle-label {
    display: none;
}

.sun-icon {
    opacity: 1;
}

.moon-icon {
    opacity: 0;
}

[data-theme="dark"] .sun-icon {
    opacity: 0;
}

[data-theme="dark"] .moon-icon {
    opacity: 1;
}

/* Animation NUR für sichtbares Icon - Light Mode */
.theme-toggle:hover .sun-icon {
    animation: sunRotateScale 2s linear infinite !important;
}

[data-theme="dark"] .theme-toggle:hover .sun-icon {
    animation: none !important;
}

/* Animation NUR für sichtbares Icon - Dark Mode */
[data-theme="dark"] .theme-toggle:hover .moon-icon {
    animation: moonRotateScale 2s linear infinite !important;
}

.theme-toggle:hover .moon-icon {
    animation: none !important;
}

/* Sound Toggle */
.sound-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0;
    min-width: 44px;
    height: 44px;
    padding: 0 12px;
    border-radius: var(--radius-lg);
    border: none;
    background-color: var(--bg-secondary);
    color: var(--text-primary);
    font-weight: var(--font-weight-medium);
    letter-spacing: 0.2px;
    transition: var(--transition-all);
    cursor: pointer;
}

@media (max-width: 768px) {
    .nav__actions {
        gap: var(--space-sm) !important;
        margin-left: 0 !important;
    }

    .theme-toggle,
    .sound-toggle {
        margin-left: 0;
        min-width: 44px;
        padding: 0 10px;
    }
}

.sound-toggle:hover {
    background-color: var(--bg-tertiary);
    box-shadow: var(--shadow-md);
}

.sound-toggle:active {
    transform: translateY(1px);
}

.sound-toggle[data-sound-state="loading"] {
    position: relative;
}

.sound-toggle[data-sound-state="loading"] .sound-icon {
    opacity: 0.25;
}

.sound-toggle[data-sound-state="loading"]::after {
    content: '';
    position: absolute;
    width: 20px;
    height: 20px;
    border: 2px solid currentColor;
    border-right-color: transparent;
    border-radius: 50%;
    animation: soundLoading 0.8s linear infinite;
}

@keyframes soundLoading {
    to { transform: rotate(360deg); }
}

@media (prefers-reduced-motion: reduce) {
    .sound-toggle[data-sound-state="loading"]::after {
        animation: none;
    }
}

.sound-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 20px;
    height: 20px;
    transition: transform var(--transition-base);
}

.sound-icon svg {
    width: 100%;
    height: 100%;
}

.sound-speaker {
    transition: transform 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.sound-wave {
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
    transform-origin: center;
}

.sound-wave-1 {
    transition-delay: 0s;
}

.sound-wave-2 {
    transition-delay: 0.05s;
}

.sound-wave-3 {
    transition-delay: 0.1s;
}

.sound-mute {
    transition: all 0.6s cubic-bezier(0.4, 0, 0.2, 1);
}

.sound-toggle:hover .sound-speaker {
    transform: scale(1.05) translateX(-1px) !important;
}

.sound-toggle:hover .sound-wave-1 {
    transform: scaleY(1.2) !important;
}

.sound-toggle:hover .sound-wave-2 {
    transform: scaleY(1.3) !important;
}

.sound-toggle:hover .sound-wave-3 {
    transform: scaleY(1.4) !important;
}

.sound-toggle:hover .sound-mute {
    transform: rotate(5deg) !important;
}

.sound-label {
    display: none;
}

.sound-toggle:hover .sound-icon {
    animation: soundRotate 2s linear infinite !important;
}

.sound-toggle:hover .sound-label {
    transform: translateX(1px);
}

@keyframes soundRotate {
    0% {
        transform: rotate(0deg) scale(1);
    }
    50% {
        transform: rotate(180deg) scale(1.15);
    }
    100% {
        transform: rotate(360deg) scale(1);
    }
}

@keyframes sunRotateScale {
    0% {
        transform: translate(-50%, -50%) rotate(0deg) scale(1);
        opacity: 1;
    }
    50% {
        transform: translate(-50%, -50%) rotate(180deg) scale(1.2);
        opacity: 0.95;
    }
    100% {
        transform: translate(-50%, -50%) rotate(360deg) scale(1);
        opacity: 1;
    }
}

@keyframes sunCorePulse {
    0%, 100% {
        transform: scale(1);
        opacity: 1;
    }
    50% {
        transform: scale(1.15);
        opacity: 0.9;
    }
}

@keyframes moonRotateScale {
    0% {
        transform: translate(-50%, -50%) rotate(0deg) scale(1);
        opacity: 1;
    }
    50% {
        transform: translate(-50%, -50%) rotate(180deg) scale(1.2);
        opacity: 0.95;
    }
    100% {
        transform: translate(-50%, -50%) rotate(360deg) scale(1);
        opacity: 1;
    }
}

@keyframes moonFloat {
    0%, 100% {
        transform: translateY(0) rotate(0deg) scale(1);
    }
    50% {
        transform: translateY(-3px) rotate(5deg) scale(1.05);
    }
}

/* Menu Toggle - Dropdown Trigger */
.nav__toggle {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    width: 44px;
    height: 44px;
    margin-left: 0;
    margin-right: 0.2rem;
    position: relative;
    z-index: 1001;
    background: transparent;
    border: none;
    cursor: pointer;
    padding: 0;
    transition: transform var(--transition-base), background-color var(--transition-base), box-shadow var(--transition-base);
}

.nav__logo .nav__toggle--left {
    margin-right: 0.875rem;
}

.nav__toggle.active {
    transform: rotate(180deg);
}

.nav__toggle:hover {
    background-color: var(--bg-tertiary);
    box-shadow: var(--shadow-sm);
    transform: scale(1.05) rotate(-3deg);
}

.hamburger {
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    position: relative;
    transition: var(--transition-base);
    border-radius: var(--radius-sm);
}

.hamburger::before,
.hamburger::after {
    content: '';
    position: absolute;
    width: 24px;
    height: 2px;
    background-color: var(--text-primary);
    transition: var(--transition-base);
    border-radius: var(--radius-sm);
}

.nav__toggle:hover .hamburger {
    transform: translateY(0);
}

.nav__toggle:hover .hamburger::before {
    transform: translateY(-6px);
}

.nav__toggle:hover .hamburger::after {
    transform: translateY(6px);
}

.hamburger::before {
    top: -8px;
}

.hamburger::after {
    bottom: -8px;
}

/* Mobile Menu Active State */
.nav__toggle.active .hamburger {
    background-color: transparent;
}

.nav__toggle.active .hamburger::before {
    top: 0;
    transform: rotate(45deg);
}

.nav__toggle.active .hamburger::after {
    bottom: 0;
    transform: rotate(-45deg);
}

/* Entfernt - Mobile Styles sind jetzt Standard */

/* Dropdown Menu (for future use) */
.nav__dropdown {
    position: absolute;
    top: 100%;
    left: 0;
    min-width: 200px;
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: var(--transition-all);
    padding: var(--space-sm);
    margin-top: var(--space-sm);
}

.nav__item:hover .nav__dropdown {
    opacity: 1;
    visibility: visible;
    transform: translateY(0);
}

.nav__dropdown-item {
    padding: var(--space-sm) var(--space-md);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-base);
}

.nav__dropdown-item:hover {
    background-color: var(--bg-secondary);
}

/* Mega Menu (for future use) */
.nav__mega-menu {
    position: absolute;
    top: 100%;
    left: 50%;
    transform: translateX(-50%);
    width: 100%;
    max-width: var(--container-max-width);
    background-color: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-xl);
    box-shadow: var(--shadow-xl);
    opacity: 0;
    visibility: hidden;
    transition: var(--transition-all);
    padding: var(--space-2xl);
    margin-top: var(--space-md);
}

.nav__item:hover .nav__mega-menu {
    opacity: 1;
    visibility: visible;
}

.mega-menu__grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--space-xl);
}

.mega-menu__section {
    padding: var(--space-md);
}

.mega-menu__title {
    font-size: var(--font-size-sm);
    font-weight: var(--font-weight-semibold);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    color: var(--text-tertiary);
    margin-bottom: var(--space-md);
}

.mega-menu__link {
    display: block;
    padding: var(--space-sm);
    border-radius: var(--radius-md);
    transition: background-color var(--transition-base);
}

.mega-menu__link:hover {
    background-color: var(--bg-secondary);
}

/* ── Light-Mode: Navbar-Action-Buttons deutlich sichtbar ─────────────────── */
/* Im hellen Modus wird der Header weiß; ohne Rahmen wirken die Buttons       */
/* unsichtbar. Explizite Farbe + Rahmen stellen ausreichenden Kontrast her.   */
:root:not([data-theme="dark"]) .nav__actions .sound-toggle,
:root:not([data-theme="dark"]) .nav__actions .theme-toggle,
:root:not([data-theme="dark"]) .nav__actions .language-switcher,
:root:not([data-theme="dark"]) .nav__actions .nav__toggle {
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    background-color: var(--bg-secondary);
}

:root:not([data-theme="dark"]) .nav__actions .sound-toggle:hover,
:root:not([data-theme="dark"]) .nav__actions .theme-toggle:hover,
:root:not([data-theme="dark"]) .nav__actions .language-switcher:hover,
:root:not([data-theme="dark"]) .nav__actions .nav__toggle:hover {
    background-color: var(--bg-tertiary);
    border-color: var(--primary-color);
}

/* Ensure SVG icons inherit the button text color in light mode */
:root:not([data-theme="dark"]) .nav__actions .sound-toggle svg,
:root:not([data-theme="dark"]) .nav__actions .theme-toggle svg,
:root:not([data-theme="dark"]) .nav__actions .language-icon svg {
    stroke: var(--text-primary);
    color: var(--text-primary);
}

/* Hamburger lines (background-color based) */
:root:not([data-theme="dark"]) .nav__toggle .hamburger,
:root:not([data-theme="dark"]) .nav__toggle .hamburger::before,
:root:not([data-theme="dark"]) .nav__toggle .hamburger::after {
    background-color: var(--text-primary);
}