/* 
 * HMSCI APP-LIKE Bottom Navigation System
 * Ultra-Modern Mobile Application Interface
 * Author: Cascade AI Assistant
 * Version: 2.0 - Professional App Design
 */

/* ===== APP BOTTOM NAVIGATION CONTAINER ===== */
.bottom-nav-container {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    z-index: 9999;
    background: rgba(255, 255, 255, 0.95);
    backdrop-filter: blur(25px) saturate(180%);
    -webkit-backdrop-filter: blur(25px) saturate(180%);
    box-shadow: 
        0 -2px 20px rgba(0, 0, 0, 0.08),
        0 -1px 0 rgba(255, 255, 255, 0.8) inset,
        0 1px 0 rgba(0, 0, 0, 0.05) inset;
    border-top: 1px solid rgba(255, 255, 255, 0.7);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    transform: translateY(0);
    opacity: 1;
    visibility: visible;
}

.bottom-nav-container.hidden {
    transform: translateY(100%);
    opacity: 0;
    visibility: hidden;
}

/* ===== APP NAVIGATION BAR ===== */
.bottom-nav {
    display: flex;
    justify-content: space-around;
    align-items: center;
    padding: 8px 0 max(12px, env(safe-area-inset-bottom));
    min-height: 70px;
    position: relative;
    background: transparent;
}

/* ===== APP NAVIGATION ITEMS ===== */
.nav-item {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-decoration: none;
    color: #8e8e93;
    font-size: 10px;
    font-weight: 500;
    padding: 6px 4px;
    border-radius: 0;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    position: relative;
    cursor: pointer;
    min-width: 44px;
    max-width: 80px;
    background: transparent;
    border: none;
    outline: none;
    -webkit-tap-highlight-color: transparent;
}

.nav-item:hover {
    color: #007AFF;
    transform: scale(1.05);
}

.nav-item:active {
    transform: scale(0.95);
    transition: transform 0.1s ease;
}

.nav-item.active {
    color: #007AFF;
}

.nav-item.active::before {
    content: '';
    position: absolute;
    top: -4px;
    left: 50%;
    transform: translateX(-50%);
    width: 4px;
    height: 4px;
    background: #007AFF;
    border-radius: 50%;
    box-shadow: 0 0 10px rgba(0, 122, 255, 0.6);
}

/* ===== APP ICONS ===== */
.nav-icon {
    font-size: 22px;
    margin-bottom: 2px;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    width: 32px;
    height: 32px;
    border-radius: 0;
    background: transparent;
    position: relative;
}

.nav-item:hover .nav-icon {
    transform: translateY(-1px);
}

.nav-item.active .nav-icon {
    transform: scale(1.1);
}

/* ===== ICON BACKGROUND EFFECTS ===== */
.nav-icon::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    width: 40px;
    height: 40px;
    background: rgba(0, 122, 255, 0.1);
    border-radius: 12px;
    opacity: 0;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    pointer-events: none;
}

.nav-item.active .nav-icon::before {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

/* ===== APP LABELS ===== */
.nav-label {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Vazirmatn', sans-serif;
    font-size: 10px;
    font-weight: 500;
    text-align: center;
    line-height: 1.2;
    opacity: 0.8;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    letter-spacing: -0.2px;
}

.nav-item.active .nav-label {
    opacity: 1;
    font-weight: 600;
}

/* ===== APP BADGE SYSTEM ===== */
.nav-badge {
    position: absolute;
    top: 2px;
    right: 50%;
    transform: translateX(12px);
    background: #FF3B30;
    color: white;
    font-size: 10px;
    font-weight: 700;
    padding: 1px 5px;
    border-radius: 10px;
    min-width: 16px;
    height: 16px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 8px rgba(255, 59, 48, 0.3);
    animation: badgePulse 2s infinite;
    z-index: 10;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    border: 2px solid rgba(255, 255, 255, 0.9);
}

@keyframes badgePulse {
    0%, 100% { 
        transform: translateX(12px) scale(1); 
        box-shadow: 0 2px 8px rgba(255, 59, 48, 0.3);
    }
    50% { 
        transform: translateX(12px) scale(1.1); 
        box-shadow: 0 4px 12px rgba(255, 59, 48, 0.5);
    }
}

/* ===== APP MORE MENU ===== */
.more-menu {
    position: absolute;
    bottom: 100%;
    left: 50%;
    transform: translateX(-50%);
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(25px) saturate(180%);
    -webkit-backdrop-filter: blur(25px) saturate(180%);
    border-radius: 20px 20px 0 0;
    box-shadow: 
        0 -10px 40px rgba(0, 0, 0, 0.12),
        0 -1px 0 rgba(255, 255, 255, 0.9) inset;
    min-width: 320px;
    max-width: 95vw;
    max-height: 70vh;
    overflow-y: auto;
    opacity: 0;
    visibility: hidden;
    transform: translateX(-50%) translateY(20px);
    transition: all 0.4s cubic-bezier(0.23, 1, 0.32, 1);
    border: 1px solid rgba(255, 255, 255, 0.8);
}

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

.more-menu-header {
    padding: 24px 20px 20px;
    background: linear-gradient(135deg, rgba(0, 122, 255, 0.1), rgba(88, 86, 214, 0.1));
    border-radius: 20px 20px 0 0;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
    position: relative;
}

.more-menu-title {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Vazirmatn', sans-serif;
    font-size: 18px;
    font-weight: 700;
    margin: 0;
    color: #1d1d1f;
    text-align: center;
}

.more-menu-close {
    position: absolute;
    top: 20px;
    right: 20px;
    background: rgba(0, 0, 0, 0.05);
    border: none;
    width: 32px;
    height: 32px;
    border-radius: 16px;
    color: #8e8e93;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    font-size: 16px;
}

.more-menu-close:hover {
    background: rgba(0, 0, 0, 0.1);
    color: #007AFF;
    transform: scale(1.05);
}

.more-menu-content {
    padding: 16px;
}

.more-menu-item {
    display: flex;
    align-items: center;
    padding: 14px 16px;
    border-radius: 14px;
    text-decoration: none;
    color: #1d1d1f;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    margin-bottom: 8px;
    background: rgba(0, 0, 0, 0.02);
    border: 1px solid transparent;
}

.more-menu-item:hover {
    background: rgba(0, 122, 255, 0.08);
    transform: translateX(4px);
    border-color: rgba(0, 122, 255, 0.2);
}

.more-menu-item:active {
    transform: translateX(2px) scale(0.98);
}

.more-menu-item-icon {
    width: 44px;
    height: 44px;
    border-radius: 12px;
    background: linear-gradient(135deg, #007AFF, #5856D6);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 20px;
    margin-left: 16px;
    flex-shrink: 0;
    box-shadow: 0 4px 12px rgba(0, 122, 255, 0.3);
}

.more-menu-item-content {
    flex: 1;
}

.more-menu-item-title {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Vazirmatn', sans-serif;
    font-size: 16px;
    font-weight: 600;
    color: #1d1d1f;
    margin: 0 0 4px 0;
}

.more-menu-item-desc {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Vazirmatn', sans-serif;
    font-size: 13px;
    color: #8e8e93;
    margin: 0;
}

/* ===== APP QUICK ACTIONS ===== */
.quick-actions {
    display: flex;
    gap: 12px;
    padding: 16px;
    background: rgba(0, 0, 0, 0.02);
    border-radius: 16px;
    margin: 16px;
}

.quick-action-btn {
    flex: 1;
    padding: 14px 16px;
    background: white;
    border: 1px solid rgba(0, 0, 0, 0.08);
    border-radius: 14px;
    text-align: center;
    text-decoration: none;
    color: #007AFF;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Vazirmatn', sans-serif;
    font-size: 13px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.04);
}

.quick-action-btn:hover {
    background: #007AFF;
    color: white;
    border-color: #007AFF;
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 122, 255, 0.3);
}

.quick-action-btn:active {
    transform: translateY(-1px) scale(0.98);
}

/* ===== APP RIPPLE EFFECT ===== */
.nav-item {
    overflow: hidden;
}

.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(0, 122, 255, 0.3);
    transform: scale(0);
    animation: appRipple 0.6s cubic-bezier(0.23, 1, 0.32, 1);
    pointer-events: none;
}

@keyframes appRipple {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ===== APP FLOATING ACTION BUTTON ===== */
.fab-container {
    position: fixed;
    bottom: 90px;
    right: 20px;
    z-index: 9998;
}

.fab-button {
    width: 56px;
    height: 56px;
    border-radius: 28px;
    background: linear-gradient(135deg, #007AFF, #5856D6);
    border: none;
    color: white;
    font-size: 24px;
    cursor: pointer;
    box-shadow: 
        0 8px 24px rgba(0, 122, 255, 0.4),
        0 2px 8px rgba(0, 0, 0, 0.1);
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    display: flex;
    align-items: center;
    justify-content: center;
    outline: none;
    -webkit-tap-highlight-color: transparent;
}

.fab-button:hover {
    transform: scale(1.1) rotate(90deg);
    box-shadow: 
        0 12px 32px rgba(0, 122, 255, 0.5),
        0 4px 12px rgba(0, 0, 0, 0.15);
}

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

.fab-menu {
    position: absolute;
    bottom: 70px;
    right: 0;
    background: rgba(255, 255, 255, 0.98);
    backdrop-filter: blur(25px) saturate(180%);
    border-radius: 16px;
    box-shadow: 0 12px 40px rgba(0, 0, 0, 0.15);
    min-width: 200px;
    opacity: 0;
    visibility: hidden;
    transform: scale(0.8) translateY(20px);
    transition: all 0.3s cubic-bezier(0.23, 1, 0.32, 1);
    border: 1px solid rgba(255, 255, 255, 0.8);
}

.fab-menu.active {
    opacity: 1;
    visibility: visible;
    transform: scale(1) translateY(0);
}

.fab-menu-item {
    display: flex;
    align-items: center;
    padding: 14px 16px;
    color: #1d1d1f;
    text-decoration: none;
    transition: all 0.2s ease;
    border-bottom: 1px solid rgba(0, 0, 0, 0.05);
}

.fab-menu-item:last-child {
    border-bottom: none;
}

.fab-menu-item:hover {
    background: rgba(0, 122, 255, 0.08);
}

.fab-menu-item i {
    margin-left: 12px;
    color: #007AFF;
    width: 20px;
    text-align: center;
}

/* ===== APP RESPONSIVE DESIGN ===== */
@media (max-width: 480px) {
    .nav-item {
        padding: 4px 2px;
        min-width: 40px;
        max-width: 70px;
    }
    
    .nav-icon {
        font-size: 20px;
        width: 28px;
        height: 28px;
    }
    
    .nav-label {
        font-size: 9px;
    }
    
    .nav-badge {
        font-size: 9px;
        min-width: 14px;
        height: 14px;
        transform: translateX(10px);
    }
    
    .more-menu {
        min-width: 100%;
        max-width: 100%;
        border-radius: 20px 20px 0 0;
    }
    
    .fab-container {
        bottom: 85px;
        right: 16px;
    }
    
    .fab-button {
        width: 52px;
        height: 52px;
        border-radius: 26px;
        font-size: 22px;
    }
}

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

/* ===== APP DARK MODE ===== */
@media (prefers-color-scheme: dark) {
    .bottom-nav-container {
        background: rgba(28, 28, 30, 0.95);
        border-top: 1px solid rgba(255, 255, 255, 0.1);
        box-shadow: 
            0 -2px 20px rgba(0, 0, 0, 0.3),
            0 -1px 0 rgba(255, 255, 255, 0.1) inset;
    }
    
    .nav-item {
        color: #8e8e93;
    }
    
    .nav-item:hover {
        color: #0A84FF;
    }
    
    .nav-item.active {
        color: #0A84FF;
    }
    
    .nav-item.active::before {
        background: #0A84FF;
        box-shadow: 0 0 10px rgba(10, 132, 255, 0.6);
    }
    
    .nav-icon::before {
        background: rgba(10, 132, 255, 0.15);
    }
    
    .nav-badge {
        background: #FF453A;
        border-color: rgba(28, 28, 30, 0.9);
    }
    
    .more-menu {
        background: rgba(28, 28, 30, 0.98);
        border: 1px solid rgba(255, 255, 255, 0.1);
        box-shadow: 0 -10px 40px rgba(0, 0, 0, 0.3);
    }
    
    .more-menu-header {
        background: linear-gradient(135deg, rgba(10, 132, 255, 0.15), rgba(88, 86, 214, 0.15));
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .more-menu-title {
        color: #f2f2f7;
    }
    
    .more-menu-close {
        background: rgba(255, 255, 255, 0.1);
        color: #8e8e93;
    }
    
    .more-menu-close:hover {
        background: rgba(255, 255, 255, 0.2);
        color: #0A84FF;
    }
    
    .more-menu-item {
        color: #f2f2f7;
        background: rgba(255, 255, 255, 0.05);
    }
    
    .more-menu-item:hover {
        background: rgba(10, 132, 255, 0.15);
        border-color: rgba(10, 132, 255, 0.3);
    }
    
    .more-menu-item-title {
        color: #f2f2f7;
    }
    
    .more-menu-item-desc {
        color: #8e8e93;
    }
    
    .quick-actions {
        background: rgba(255, 255, 255, 0.05);
    }
    
    .quick-action-btn {
        background: rgba(255, 255, 255, 0.1);
        border-color: rgba(255, 255, 255, 0.2);
        color: #0A84FF;
    }
    
    .quick-action-btn:hover {
        background: #0A84FF;
        color: white;
        border-color: #0A84FF;
    }
    
    .fab-menu {
        background: rgba(28, 28, 30, 0.98);
        border: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .fab-menu-item {
        color: #f2f2f7;
        border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    }
    
    .fab-menu-item:hover {
        background: rgba(10, 132, 255, 0.15);
    }
    
    .fab-menu-item i {
        color: #0A84FF;
    }
}

/* ===== APP ACCESSIBILITY ===== */
.nav-item:focus-visible {
    outline: 2px solid #007AFF;
    outline-offset: 2px;
    border-radius: 8px;
}

@media (prefers-reduced-motion: reduce) {
    .nav-item,
    .nav-icon,
    .nav-label,
    .nav-badge,
    .more-menu,
    .fab-button,
    .fab-menu {
        transition: none;
        animation: none;
    }
}

/* ===== APP ANIMATIONS ===== */
.nav-item {
    animation: slideInUp 0.4s cubic-bezier(0.23, 1, 0.32, 1);
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== APP LOADING STATES ===== */
.nav-item.loading .nav-icon {
    animation: appSpin 1s linear infinite;
}

@keyframes appSpin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ===== APP SPECIAL EFFECTS ===== */
.bottom-nav-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(0, 122, 255, 0.3) 20%, 
        rgba(0, 122, 255, 0.3) 80%, 
        transparent
    );
    animation: appShimmer 3s infinite;
}

@keyframes appShimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ===== APP SAFE AREA ===== */
@supports (padding: max(0px)) {
    .bottom-nav {
        padding-bottom: max(12px, env(safe-area-inset-bottom));
    }
}

/* ===== APP PERFORMANCE OPTIMIZATIONS ===== */
.nav-item,
.nav-icon,
.nav-label,
.nav-badge,
.more-menu,
.fab-button,
.fab-menu {
    will-change: transform;
    backface-visibility: hidden;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* ===== APP HOVER STATES ===== */
@media (hover: hover) {
    .nav-item:hover {
        transform: scale(1.05);
    }
    
    .nav-item:active {
        transform: scale(0.95);
    }
    
    .fab-button:hover {
        transform: scale(1.1) rotate(90deg);
    }
    
    .fab-button:active {
        transform: scale(0.95);
    }
}

/* ===== APP TOUCH OPTIMIZATIONS ===== */
@media (pointer: coarse) {
    .nav-item {
        min-height: 44px;
        min-width: 44px;
    }
    
    .fab-button {
        min-width: 56px;
        min-height: 56px;
    }
    
    .more-menu-item {
        min-height: 44px;
        padding: 12px 16px;
    }
}

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

.more-menu-header {
    padding: 20px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    border-radius: 16px 16px 0 0;
    color: white;
    text-align: center;
}

.more-menu-title {
    font-family: 'Vazirmatn', 'Tahoma', sans-serif;
    font-size: 16px;
    font-weight: 700;
    margin: 0;
    color: white;
}

.more-menu-close {
    position: absolute;
    top: 15px;
    right: 15px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    width: 30px;
    height: 30px;
    border-radius: 8px;
    color: white;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s ease;
}

.more-menu-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

.more-menu-content {
    padding: 10px;
}

.more-menu-item {
    display: flex;
    align-items: center;
    padding: 12px 15px;
    border-radius: 12px;
    text-decoration: none;
    color: #333;
    transition: all 0.3s ease;
    margin-bottom: 5px;
}

.more-menu-item:hover {
    background: rgba(102, 126, 234, 0.1);
    transform: translateX(5px);
}

.more-menu-item-icon {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    font-size: 18px;
    margin-left: 15px;
    flex-shrink: 0;
}

.more-menu-item-content {
    flex: 1;
}

.more-menu-item-title {
    font-family: 'Vazirmatn', 'Tahoma', sans-serif;
    font-size: 14px;
    font-weight: 600;
    color: #333;
    margin: 0 0 2px 0;
}

.more-menu-item-desc {
    font-family: 'Vazirmatn', 'Tahoma', sans-serif;
    font-size: 11px;
    color: #666;
    margin: 0;
}

/* ===== QUICK ACTIONS ===== */
.quick-actions {
    display: flex;
    gap: 10px;
    padding: 15px;
    background: rgba(102, 126, 234, 0.05);
    border-radius: 12px;
    margin: 10px;
}

.quick-action-btn {
    flex: 1;
    padding: 12px;
    background: white;
    border: 2px solid rgba(102, 126, 234, 0.2);
    border-radius: 10px;
    text-align: center;
    text-decoration: none;
    color: #667eea;
    font-family: 'Vazirmatn', 'Tahoma', sans-serif;
    font-size: 12px;
    font-weight: 600;
    transition: all 0.3s ease;
}

.quick-action-btn:hover {
    background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
    color: white;
    border-color: transparent;
    transform: translateY(-2px);
    box-shadow: 0 5px 20px rgba(102, 126, 234, 0.3);
}

/* ===== RIPPLE EFFECT ===== */
.nav-item {
    overflow: hidden;
}

.ripple {
    position: absolute;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: scale(0);
    animation: ripple-animation 0.6s ease-out;
    pointer-events: none;
}

@keyframes ripple-animation {
    to {
        transform: scale(4);
        opacity: 0;
    }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 480px) {
    .nav-item {
        padding: 6px 2px;
        min-width: 45px;
        max-width: 70px;
    }
    
    .nav-icon {
        font-size: 18px;
        width: 28px;
        height: 28px;
    }
    
    .nav-label {
        font-size: 9px;
    }
    
    .nav-badge {
        font-size: 8px;
        min-width: 14px;
        height: 14px;
    }
    
    .more-menu {
        min-width: 100%;
        max-width: 100%;
        border-radius: 16px 16px 0 0;
    }
}

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

/* ===== DARK MODE SUPPORT ===== */
@media (prefers-color-scheme: dark) {
    .more-menu {
        background: #2d3748;
    }
    
    .more-menu-item {
        color: #e2e8f0;
    }
    
    .more-menu-item-title {
        color: #e2e8f0;
    }
    
    .more-menu-item-desc {
        color: #a0aec0;
    }
    
    .quick-action-btn {
        background: #4a5568;
        color: #e2e8f0;
        border-color: rgba(102, 126, 234, 0.3);
    }
    
    .quick-actions {
        background: rgba(102, 126, 234, 0.1);
    }
}

/* ===== ACCESSIBILITY ===== */
.nav-item:focus-visible {
    outline: 2px solid white;
    outline-offset: 2px;
}

.nav-item[aria-pressed="true"] {
    color: white;
    background: rgba(255, 255, 255, 0.15);
}

/* ===== ANIMATIONS ===== */
.nav-item {
    animation: slideInUp 0.4s ease-out;
}

@keyframes slideInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

/* ===== LOADING STATES ===== */
.nav-item.loading .nav-icon {
    animation: spin 1s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ===== SPECIAL EFFECTS ===== */
.bottom-nav-container::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 1px;
    background: linear-gradient(90deg, 
        transparent, 
        rgba(255, 255, 255, 0.3) 20%, 
        rgba(255, 255, 255, 0.3) 80%, 
        transparent
    );
    animation: shimmer 3s infinite;
}

@keyframes shimmer {
    0% { transform: translateX(-100%); }
    100% { transform: translateX(100%); }
}

/* ===== SAFE AREA ===== */
@supports (padding: max(0px)) {
    .bottom-nav {
        padding-bottom: max(8px, env(safe-area-inset-bottom));
    }
}