/* ===== ULTRA-MODERN MOBILE NAVIGATION ===== */
/* Slide-out drawer menu with gesture support */
/* Bottom sheet style on mobile with glass morphism */

/* === MOBILE DRAWER NAVIGATION === */
.mobile-drawer {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    max-width: min(320px, 85vw);
    height: 100%;
    background: var(--glass-bg-darker, rgba(0, 0, 0, 0.8));
    backdrop-filter: blur(var(--blur-xl, 40px));
    -webkit-backdrop-filter: blur(var(--blur-xl, 40px));
    transform: translateX(-100%);
    transition: transform var(--duration-normal, 300ms) var(--ease-smooth, cubic-bezier(0.25, 0.1, 0.25, 1));
    z-index: var(--z-modal, 400);
    display: flex;
    flex-direction: column;
    border-right: 1px solid var(--glass-border-dark, rgba(255, 255, 255, 0.1));
    box-shadow: var(--shadow-2xl, 0 25px 50px rgba(0, 0, 0, 0.25));
}

.mobile-drawer.drawer-right {
    left: auto;
    right: 0;
    transform: translateX(100%);
    border-right: none;
    border-left: 1px solid var(--glass-border-dark, rgba(255, 255, 255, 0.1));
}

.mobile-drawer.open {
    transform: translateX(0);
}

/* === DRAWER HEADER === */
.drawer-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-6, 1.5rem);
    border-bottom: 1px solid var(--glass-border-dark, rgba(255, 255, 255, 0.1));
}

.drawer-logo {
    display: flex;
    align-items: center;
    gap: var(--space-3, 0.75rem);
}

.drawer-logo-icon {
    font-size: 2rem;
    filter: drop-shadow(0 0 8px var(--token-primary-glow, rgba(230, 57, 70, 0.4)));
}

.drawer-logo-text {
    font-family: var(--font-display, 'Space Grotesk', sans-serif);
    font-size: var(--font-size-body-lg, 1.125rem);
    font-weight: var(--font-weight-bold, 700);
    background: var(--gradient-text-hero, linear-gradient(90deg, #E63946, #7B2CBF, #00F5D4));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.drawer-close {
    width: 40px;
    height: 40px;
    border: none;
    background: var(--glass-bg-light, rgba(255, 255, 255, 0.1));
    border-radius: var(--radius-full, 9999px);
    color: var(--text-on-dark, #FFFFFF);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    transition: background var(--duration-fast, 200ms) var(--ease-smooth, ease),
                transform var(--duration-fast, 200ms) var(--ease-elastic, cubic-bezier(0.68, -0.55, 0.265, 1.55));
}

.drawer-close:hover {
    background: var(--glass-bg-medium, rgba(255, 255, 255, 0.2));
    transform: rotate(90deg);
}

/* === DRAWER CONTENT === */
.drawer-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-4, 1rem) 0;
}

.drawer-nav {
    display: flex;
    flex-direction: column;
}

.drawer-nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-4, 1rem);
    padding: var(--space-4, 1rem) var(--space-6, 1.5rem);
    color: var(--text-on-dark, #FFFFFF);
    text-decoration: none;
    transition: background var(--duration-fast, 200ms) var(--ease-smooth, ease),
                padding-left var(--duration-fast, 200ms) var(--ease-smooth, ease);
    position: relative;
}

.drawer-nav-item::before {
    content: '';
    position: absolute;
    left: 0;
    top: 50%;
    transform: translateY(-50%) scaleY(0);
    width: 4px;
    height: 60%;
    background: var(--gradient-primary, linear-gradient(135deg, #E63946, #FF2E63));
    border-radius: 0 var(--radius-sm, 0.25rem) var(--radius-sm, 0.25rem) 0;
    transition: transform var(--duration-fast, 200ms) var(--ease-elastic, cubic-bezier(0.68, -0.55, 0.265, 1.55));
}

.drawer-nav-item:hover,
.drawer-nav-item.active {
    background: var(--glass-bg-light, rgba(255, 255, 255, 0.05));
    padding-left: calc(var(--space-6, 1.5rem) + 8px);
}

.drawer-nav-item:hover::before,
.drawer-nav-item.active::before {
    transform: translateY(-50%) scaleY(1);
}

.drawer-nav-icon {
    font-size: 1.5rem;
    width: 40px;
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--glass-bg-light, rgba(255, 255, 255, 0.1));
    border-radius: var(--radius-lg, 0.75rem);
    transition: background var(--duration-fast, 200ms) var(--ease-smooth, ease),
                transform var(--duration-fast, 200ms) var(--ease-elastic, cubic-bezier(0.68, -0.55, 0.265, 1.55));
}

.drawer-nav-item:hover .drawer-nav-icon {
    background: var(--glass-bg-colored-primary, rgba(230, 57, 70, 0.2));
    transform: scale(1.1);
}

.drawer-nav-label {
    font-family: var(--font-sans, 'Inter', sans-serif);
    font-size: var(--font-size-body, 1rem);
    font-weight: var(--font-weight-medium, 500);
}

.drawer-nav-divider {
    height: 1px;
    background: var(--glass-border-dark, rgba(255, 255, 255, 0.1));
    margin: var(--space-4, 1rem) var(--space-6, 1.5rem);
}

.drawer-nav-section-title {
    padding: var(--space-2, 0.5rem) var(--space-6, 1.5rem);
    font-family: var(--font-sans, 'Inter', sans-serif);
    font-size: var(--font-size-micro, 0.625rem);
    font-weight: var(--font-weight-semibold, 600);
    letter-spacing: var(--letter-spacing-widest, 0.2em);
    text-transform: uppercase;
    color: var(--text-on-dark-subtle, rgba(255, 255, 255, 0.5));
}

/* === DRAWER FOOTER === */
.drawer-footer {
    padding: var(--space-6, 1.5rem);
    border-top: 1px solid var(--glass-border-dark, rgba(255, 255, 255, 0.1));
}

.drawer-theme-toggle {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-3, 0.75rem) var(--space-4, 1rem);
    background: var(--glass-bg-light, rgba(255, 255, 255, 0.05));
    border-radius: var(--radius-lg, 0.75rem);
}

.drawer-theme-label {
    font-family: var(--font-sans, 'Inter', sans-serif);
    font-size: var(--font-size-body-sm, 0.875rem);
    color: var(--text-on-dark-muted, rgba(255, 255, 255, 0.7));
}

/* === DRAWER BACKDROP === */
.drawer-backdrop {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    opacity: 0;
    visibility: hidden;
    transition: opacity var(--duration-normal, 300ms) var(--ease-smooth, ease),
                visibility var(--duration-normal, 300ms) var(--ease-smooth, ease);
    z-index: calc(var(--z-modal, 400) - 1);
}

.drawer-backdrop.open {
    opacity: 1;
    visibility: visible;
}

/* === BOTTOM SHEET NAVIGATION (Alternative) === */
.bottom-sheet {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    background: var(--glass-bg-darker, rgba(0, 0, 0, 0.9));
    backdrop-filter: blur(var(--blur-xl, 40px));
    -webkit-backdrop-filter: blur(var(--blur-xl, 40px));
    border-radius: var(--radius-3xl, 2rem) var(--radius-3xl, 2rem) 0 0;
    border-top: 1px solid var(--glass-border-light, rgba(255, 255, 255, 0.2));
    transform: translateY(100%);
    transition: transform var(--duration-slow, 500ms) var(--ease-smooth, cubic-bezier(0.25, 0.1, 0.25, 1));
    z-index: var(--z-modal, 400);
    max-height: 80vh;
    overflow: hidden;
}

.bottom-sheet.open {
    transform: translateY(0);
}

.bottom-sheet-handle {
    width: min(40px, 10vw);
    height: 4px;
    background: var(--glass-border-light, rgba(255, 255, 255, 0.3));
    border-radius: var(--radius-full, 9999px);
    margin: var(--space-3, 0.75rem) auto;
    cursor: grab;
}

.bottom-sheet-handle:active {
    cursor: grabbing;
}

.bottom-sheet-content {
    padding: 0 var(--space-6, 1.5rem) var(--space-8, 2rem);
    overflow-y: auto;
    max-height: calc(80vh - 30px);
}

.bottom-sheet-nav {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: var(--space-4, 1rem);
    padding-top: var(--space-4, 1rem);
}

.bottom-sheet-nav-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: var(--space-2, 0.5rem);
    padding: var(--space-4, 1rem);
    background: var(--glass-bg-light, rgba(255, 255, 255, 0.05));
    border-radius: var(--radius-xl, 1rem);
    color: var(--text-on-dark, #FFFFFF);
    text-decoration: none;
    transition: background var(--duration-fast, 200ms) var(--ease-smooth, ease),
                transform var(--duration-fast, 200ms) var(--ease-elastic, cubic-bezier(0.68, -0.55, 0.265, 1.55));
}

.bottom-sheet-nav-item:hover,
.bottom-sheet-nav-item:active {
    background: var(--glass-bg-medium, rgba(255, 255, 255, 0.1));
    transform: scale(0.95);
}

.bottom-sheet-nav-icon {
    font-size: 1.75rem;
}

.bottom-sheet-nav-label {
    font-family: var(--font-sans, 'Inter', sans-serif);
    font-size: var(--font-size-caption, 0.75rem);
    font-weight: var(--font-weight-medium, 500);
}

/* === FLOATING BOTTOM BAR === */
.floating-nav-bar {
    position: fixed;
    bottom: var(--space-4, 1rem);
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: var(--space-2, 0.5rem);
    padding: var(--space-2, 0.5rem);
    background: var(--glass-bg-darker, rgba(0, 0, 0, 0.8));
    backdrop-filter: blur(var(--blur-lg, 20px));
    -webkit-backdrop-filter: blur(var(--blur-lg, 20px));
    border: 1px solid var(--glass-border-dark, rgba(255, 255, 255, 0.1));
    border-radius: var(--radius-full, 9999px);
    box-shadow: var(--shadow-xl, 0 20px 25px rgba(0, 0, 0, 0.25));
    z-index: var(--z-sticky, 200);
    transition: transform var(--duration-normal, 300ms) var(--ease-smooth, ease),
                opacity var(--duration-normal, 300ms) var(--ease-smooth, ease);
}

.floating-nav-bar.hidden {
    transform: translateX(-50%) translateY(100px);
    opacity: 0;
}

.floating-nav-item {
    width: 50px;
    height: 50px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-full, 9999px);
    color: var(--text-on-dark-muted, rgba(255, 255, 255, 0.7));
    text-decoration: none;
    transition: background var(--duration-fast, 200ms) var(--ease-smooth, ease),
                color var(--duration-fast, 200ms) var(--ease-smooth, ease),
                transform var(--duration-fast, 200ms) var(--ease-elastic, cubic-bezier(0.68, -0.55, 0.265, 1.55));
}

.floating-nav-item:hover,
.floating-nav-item.active {
    background: var(--glass-bg-light, rgba(255, 255, 255, 0.1));
    color: var(--text-on-dark, #FFFFFF);
}

.floating-nav-item.active {
    background: var(--gradient-primary, linear-gradient(135deg, #E63946, #FF2E63));
    box-shadow: var(--shadow-glow-primary, 0 0 20px rgba(230, 57, 70, 0.4));
}

.floating-nav-item:active {
    transform: scale(0.9);
}

.floating-nav-icon {
    font-size: 1.5rem;
}

/* === CENTER FAB (Floating Action Button) === */
.floating-nav-fab {
    width: 60px;
    height: 60px;
    margin: 0 var(--space-2, 0.5rem);
    background: var(--gradient-primary, linear-gradient(135deg, #E63946, #FF2E63));
    border-radius: var(--radius-full, 9999px);
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-on-primary, #FFFFFF);
    text-decoration: none;
    box-shadow: var(--shadow-glow-primary, 0 0 20px rgba(230, 57, 70, 0.5));
    transition: transform var(--duration-fast, 200ms) var(--ease-elastic, cubic-bezier(0.68, -0.55, 0.265, 1.55)),
                box-shadow var(--duration-fast, 200ms) var(--ease-smooth, ease);
    position: relative;
    top: -10px;
}

.floating-nav-fab:hover {
    transform: scale(1.1);
    box-shadow: var(--shadow-glow-primary, 0 0 30px rgba(230, 57, 70, 0.6)),
                var(--shadow-xl, 0 20px 25px rgba(0, 0, 0, 0.2));
}

.floating-nav-fab:active {
    transform: scale(0.95);
}

.floating-nav-fab-icon {
    font-size: 1.75rem;
}

/* === RESPONSIVE ADJUSTMENTS === */
@media (max-width: 768px) {
    .mobile-drawer {
        max-width: 85vw;
    }

    .floating-nav-bar {
        width: calc(100% - var(--space-8, 2rem));
        max-width: min(400px, 90vw);
    }

    .floating-nav-item {
        flex: 1;
        width: auto;
        min-width: 44px;
    }
}

@media (max-width: 480px) {
    .bottom-sheet-nav {
        grid-template-columns: repeat(auto-fit, minmax(min(100%, 70px), 1fr));
    }

    .floating-nav-bar {
        bottom: var(--space-3, 0.75rem);
        padding: var(--space-1, 0.25rem);
        width: calc(100% - 1rem);
    }

    .floating-nav-item {
        width: 44px;
        height: 44px;
        min-width: 40px;
    }

    .floating-nav-fab {
        width: 52px;
        height: 52px;
        min-width: 48px;
        top: -8px;
    }
}

@media (max-width: 320px) {
    .floating-nav-item {
        width: 40px;
        height: 40px;
        min-width: 36px;
    }

    .floating-nav-fab {
        width: 48px;
        height: 48px;
        min-width: 44px;
    }

    .drawer-content {
        padding: var(--space-3, 0.75rem) 0;
    }

    .drawer-nav-item {
        padding: var(--space-3, 0.75rem) var(--space-4, 1rem);
    }
}

/* === GESTURE SUPPORT HINTS === */
.gesture-hint {
    position: absolute;
    top: 50%;
    right: -30px;
    transform: translateY(-50%);
    width: 20px;
    height: 40px;
    background: var(--glass-bg-medium, rgba(255, 255, 255, 0.2));
    border-radius: var(--radius-full, 9999px);
    opacity: 0;
    transition: opacity var(--duration-normal, 300ms) var(--ease-smooth, ease);
    pointer-events: none;
}

.mobile-drawer:not(.open) .gesture-hint {
    animation: swipeHint 2s ease-in-out infinite;
    animation-delay: 1s;
    opacity: 1;
}

@keyframes swipeHint {
    0%, 100% {
        transform: translateY(-50%) translateX(0);
        opacity: 0.5;
    }
    50% {
        transform: translateY(-50%) translateX(10px);
        opacity: 1;
    }
}

/* === REDUCED MOTION === */
@media (prefers-reduced-motion: reduce) {
    .mobile-drawer,
    .bottom-sheet,
    .floating-nav-bar,
    .drawer-nav-item,
    .bottom-sheet-nav-item,
    .floating-nav-item,
    .floating-nav-fab,
    .drawer-backdrop {
        transition-duration: 0ms !important;
    }

    .gesture-hint {
        animation: none;
    }
}

/* === END OF MOBILE NAVIGATION === */