/* ==========================================
   TABEERIQ UNIFIED NAVIGATION SYSTEM
   Best-in-Class Mobile & Desktop Navigation
   ========================================== */

/* ========== GLOBAL NAVIGATION BASE ========== */
:root {
    /* TabeerIQ Brand Colors */
    --tabeeriq-gold: #ffd700;
    --tabeeriq-gold-hover: #ffed4e;
    --tabeeriq-green: #10b981;
    --tabeeriq-primary: #1a365d;
    --tabeeriq-secondary: #2a4a6b;
    
    /* Navigation Variables */
    --nav-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --nav-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    --nav-border-radius: 12px;
    --touch-target: 44px;
}

/* Enhanced Global Touch Targets */
* {
    -webkit-tap-highlight-color: rgba(255, 215, 0, 0.2);
    box-sizing: border-box;
}

/* ========== NAVBAR CONTAINER ========== */
.navbar {
    background: linear-gradient(135deg, var(--tabeeriq-primary) 0%, var(--tabeeriq-secondary) 100%);
    backdrop-filter: blur(20px);
    border-bottom: 2px solid rgba(255, 215, 0, 0.2);
    box-shadow: var(--nav-shadow);
    transition: var(--nav-transition);
    padding: 1.25rem 0;
    position: relative;
    z-index: 1030;
    min-height: 90px;
}

.navbar::before {
    content: '';
    position: absolute;
    bottom: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, var(--tabeeriq-gold), var(--tabeeriq-gold-hover), var(--tabeeriq-gold));
    opacity: 0.8;
}

/* ========== BRAND STYLING ========== */
.navbar-brand {
    font-weight: 700;
    transition: var(--nav-transition);
    padding: 0.5rem 0;
    text-decoration: none;
}

.navbar-brand:hover {
    transform: translateY(-1px);
    filter: drop-shadow(0 4px 12px rgba(255, 215, 0, 0.4));
}

.brand-text span {
    font-size: 1.45rem; /* Increased from 1.2rem for larger text */
    letter-spacing: -0.02em;
    transition: var(--nav-transition);
    font-weight: 600; /* Added weight for better visibility */
}

.brand-icon img {
    transition: var(--nav-transition);
    filter: drop-shadow(0 2px 8px rgba(255, 215, 0, 0.3));
    height: 40px; /* Increased from default for better desktop visibility */
    width: auto;
}

.brand-icon img:hover {
    transform: rotate(5deg) scale(1.1);
}

/* ========== MOBILE NAVIGATION (< 992px) ========== */
@media (max-width: 991.98px) {
    
    /* Mobile Hamburger Button */
    .navbar-toggler {
        display: block !important;
        position: relative;
        min-width: var(--touch-target);
        min-height: var(--touch-target);
        padding: 12px;
        border: 2px solid rgba(255, 215, 0, 0.4);
        border-radius: var(--nav-border-radius);
        background: linear-gradient(135deg, rgba(255, 215, 0, 0.15), rgba(255, 215, 0, 0.05));
        transition: var(--nav-transition);
        overflow: hidden;
        cursor: pointer;
        z-index: 1050;
    }
    
    .navbar-toggler::before {
        content: '';
        position: absolute;
        top: 50%;
        left: 50%;
        width: 0;
        height: 0;
        background: rgba(255, 215, 0, 0.3);
        border-radius: 50%;
        transition: all 0.4s cubic-bezier(0.68, -0.55, 0.265, 1.55);
        transform: translate(-50%, -50%);
        z-index: -1;
    }
    
    .navbar-toggler:hover::before,
    .navbar-toggler:focus::before {
        width: 100%;
        height: 100%;
    }
    
    .navbar-toggler:hover {
        background: linear-gradient(135deg, rgba(255, 215, 0, 0.25), rgba(255, 215, 0, 0.15));
        border-color: rgba(255, 215, 0, 0.6);
        transform: scale(1.05);
        box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
    }
    
    .navbar-toggler:focus {
        outline: none;
        box-shadow: 0 0 0 4px rgba(255, 215, 0, 0.3);
        border-color: rgba(255, 215, 0, 0.8);
    }
    
    /* Enhanced Hamburger Icon */
    .navbar-toggler-icon {
        background-image: url("data:image/svg+xml,%3csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 30 30'%3e%3cpath stroke='rgba%28255, 215, 0, 1%29' stroke-linecap='round' stroke-miterlimit='10' stroke-width='3' d='M4 7h22M4 15h22M4 23h22'/%3e%3c/svg%3e");
        width: 24px;
        height: 24px;
        position: relative;
        z-index: 2;
        transition: transform 0.3s ease;
    }
    
    .navbar-toggler[aria-expanded="true"] .navbar-toggler-icon {
        transform: rotate(90deg);
    }
    
    /* Mobile Menu Container */
    .navbar-collapse {
        position: absolute;
        top: 100%;
        left: 0;
        right: 0;
        background: linear-gradient(135deg, rgba(26, 54, 93, 0.98) 0%, rgba(42, 74, 107, 0.96) 100%);
        border: 2px solid rgba(255, 215, 0, 0.25);
        border-radius: var(--nav-border-radius);
        margin-top: 12px;
        padding: 24px;
        backdrop-filter: blur(20px);
        box-shadow: var(--nav-shadow);
        transform: translateY(-20px);
        opacity: 0;
        visibility: hidden;
        transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
        z-index: 1040;
    }
    
    .navbar-collapse::before {
        content: '';
        position: absolute;
        top: 0;
        left: 0;
        right: 0;
        height: 3px;
        background: linear-gradient(90deg, var(--tabeeriq-gold), var(--tabeeriq-gold-hover), var(--tabeeriq-gold));
        border-radius: var(--nav-border-radius) var(--nav-border-radius) 0 0;
    }
    
    .navbar-collapse.show {
        transform: translateY(0);
        opacity: 1;
        visibility: visible;
    }
    
    /* Mobile Navigation Links */
    .navbar-nav .nav-link {
        display: block !important;
        padding: 16px 20px !important;
        margin: 6px 0;
        border-radius: var(--nav-border-radius);
        background: rgba(255, 255, 255, 0.08);
        border: 1px solid rgba(255, 255, 255, 0.15);
        color: rgba(255, 255, 255, 0.95) !important;
        font-weight: 500;
        transition: var(--nav-transition);
        position: relative;
        overflow: hidden;
        text-decoration: none;
        min-height: var(--touch-target);
        display: flex;
        align-items: center;
    }
    
    .navbar-nav .nav-link::after {
        content: '';
        position: absolute;
        left: 0;
        bottom: 0;
        width: 0;
        height: 3px;
        background: var(--tabeeriq-gold);
        transition: width 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    }
    
    .navbar-nav .nav-link:hover {
        background: linear-gradient(135deg, rgba(255, 215, 0, 0.15), rgba(255, 215, 0, 0.08));
        transform: translateX(8px);
        border-color: rgba(255, 215, 0, 0.4);
        color: white !important;
        box-shadow: 0 6px 20px rgba(255, 215, 0, 0.25);
    }
    
    .navbar-nav .nav-link:hover::after {
        width: 100%;
    }
    
    .navbar-nav .nav-link.active {
        background: linear-gradient(135deg, rgba(255, 215, 0, 0.25), rgba(255, 215, 0, 0.15));
        border-color: rgba(255, 215, 0, 0.6);
        color: white !important;
        font-weight: 600;
    }
    
    .navbar-nav .nav-link.active::after {
        width: 100%;
    }
    
    /* Mobile Dropdown Menus */
    .dropdown-menu {
        position: static !important;
        float: none !important;
        background: rgba(42, 74, 107, 0.9) !important;
        border: 1px solid rgba(255, 215, 0, 0.3) !important;
        border-radius: 8px !important;
        margin-top: 8px !important;
        padding: 12px;
        box-shadow: inset 0 2px 8px rgba(0, 0, 0, 0.2);
    }
    
    .dropdown-item {
        padding: 12px 16px;
        border-radius: 8px;
        transition: var(--nav-transition);
        color: rgba(255, 255, 255, 0.9);
    }
    
    .dropdown-item:hover {
        background: rgba(255, 215, 0, 0.2);
        color: white;
        transform: translateX(4px);
    }
}

/* ========== DESKTOP NAVIGATION (≥ 992px) ========== */
@media (min-width: 992px) {
    
    /* Hide mobile elements */
    .navbar-toggler {
        display: none !important;
    }
    
    /* Desktop menu container */
    .navbar-collapse {
        display: flex !important;
        flex-basis: auto !important;
        width: 100% !important;
        background: none !important;
        border: none !important;
        margin: 0 !important;
        padding: 0 !important;
        box-shadow: none !important;
        position: static !important;
    }
    
    /* Desktop navigation layout */
    .navbar-nav {
        display: flex;
        align-items: center;
        gap: 0.5rem;
    }
    
    .navbar-nav.ms-auto {
        margin-left: auto !important;
    }
    
    /* Desktop navigation links */
    .navbar-nav .nav-link {
        padding: 12px 20px !important;
        border-radius: 24px !important;
        transition: var(--nav-transition) !important;
        color: rgba(255, 255, 255, 0.9) !important;
        font-weight: 500;
        position: relative;
        overflow: hidden;
        text-decoration: none;
        min-height: auto;
    }
    
    .navbar-nav .nav-link::before {
        content: '';
        position: absolute;
        top: 0;
        left: -100%;
        width: 100%;
        height: 100%;
        background: linear-gradient(90deg, transparent, rgba(255, 255, 255, 0.1), transparent);
        transition: left 0.6s ease;
        z-index: 1;
    }
    
    .navbar-nav .nav-link:hover::before {
        left: 100%;
    }
    
    .navbar-nav .nav-link:hover {
        background: linear-gradient(135deg, rgba(255, 215, 0, 0.15), rgba(255, 215, 0, 0.08)) !important;
        transform: translateY(-2px) !important;
        color: white !important;
        box-shadow: 0 8px 25px rgba(255, 215, 0, 0.3);
    }
    
    .navbar-nav .nav-link.active {
        background: linear-gradient(135deg, rgba(255, 215, 0, 0.2), rgba(255, 215, 0, 0.1)) !important;
        color: white !important;
        font-weight: 600;
        box-shadow: 0 4px 15px rgba(255, 215, 0, 0.25);
    }
    
    /* Desktop dropdown menus */
    .dropdown-menu {
        background: linear-gradient(135deg, var(--tabeeriq-primary), var(--tabeeriq-secondary)) !important;
        border: 1px solid rgba(255, 215, 0, 0.2) !important;
        border-radius: var(--nav-border-radius) !important;
        box-shadow: var(--nav-shadow) !important;
        padding: 1rem !important;
        margin-top: 8px !important;
    }
    
    .dropdown-item {
        border-radius: 8px !important;
        padding: 12px 16px !important;
        transition: var(--nav-transition) !important;
        color: rgba(255, 255, 255, 0.9);
    }
    
    .dropdown-item:hover {
        background: linear-gradient(135deg, rgba(255, 215, 0, 0.15), rgba(255, 215, 0, 0.08)) !important;
        transform: translateX(6px) !important;
        color: white;
    }
    
    /* Desktop brand enhancements */
    .brand-text span {
        font-size: 1.4rem !important;
    }
    
    .brand-text small {
        font-size: 0.75rem !important;
    }
    
    .brand-icon img {
        width: 32px !important;
        height: 32px !important;
    }
}

/* ========== ULTRA-WIDE DESKTOP (≥ 1400px) ========== */
@media (min-width: 1400px) {
    .container-fluid {
        max-width: 1600px;
        margin: 0 auto;
        padding: 0 3rem;
    }
    
    .navbar-nav {
        gap: 1rem;
    }
    
    .navbar-nav .nav-link {
        padding: 14px 24px !important;
        font-size: 1.05rem;
    }
    
    .brand-text span {
        font-size: 1.5rem !important;
    }
    
    .brand-icon img {
        width: 36px !important;
        height: 36px !important;
    }
}

/* ========== ACCESSIBILITY ENHANCEMENTS ========== */
@media (prefers-reduced-motion: reduce) {
    * {
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* Focus states for keyboard navigation */
.navbar-nav .nav-link:focus,
.navbar-toggler:focus,
.dropdown-item:focus {
    outline: 2px solid var(--tabeeriq-gold);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .navbar {
        border-bottom: 3px solid var(--tabeeriq-gold);
    }
    
    .navbar-nav .nav-link {
        border: 1px solid rgba(255, 255, 255, 0.3);
    }
}

/* ========== LOADING STATES ========== */
.nav-loading .navbar-nav .nav-link {
    background: linear-gradient(90deg, rgba(255,255,255,0.05) 25%, rgba(255,255,255,0.1) 50%, rgba(255,255,255,0.05) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
}

@keyframes shimmer {
    0% { background-position: -200% 0; }
    100% { background-position: 200% 0; }
}

/* ========== PRINT STYLES ========== */
@media print {
    .navbar {
        display: none !important;
    }
}

/* ========== MOBILE BODY PADDING FOR BOTTOM NAV ========== */
@media (max-width: 991.98px) {
    body {
        padding-bottom: 80px;
    }
}

/* ========== SMOOTH SCROLL BEHAVIOR ========== */
@media (max-width: 767.98px) {
    html {
        scroll-behavior: smooth;
        -webkit-overflow-scrolling: touch;
    }
    
    .scroll-container {
        -webkit-overflow-scrolling: touch;
        overflow-y: auto;
    }
    
    .btn:active,
    .card:active {
        transform: scale(0.98);
        transition: transform 0.1s ease;
    }
}