/* =====================================================
   XSVSTUDIO PREMIUM NAVIGATION SYSTEM
   Enterprise Multi-Tier Navigation with Glassmorphism
   ===================================================== */

/* === ROOT VARIABLES === */
:root {
    /* Midnight Ember Palette */
    --xsv-violet: #5c5edc;
    --xsv-arctic-steel: #8b9dc3;
    --xsv-burnt-coral: #ff6b6b;
    --xsv-midnight: #1a1d29;
    --xsv-darker: #0f1117;
    --xsv-almost-black: #0a0a0f;
    --xsv-ai-green: #10b981;
    --xsv-teal: #0a9191;
    
    /* Gradients - FIXED: No more red in progress bar */
    --xsv-gradient-progress: linear-gradient(180deg, #5c5edc, #0a9191);
    --xsv-gradient-text: linear-gradient(135deg, #5c5edc 60%, #8b9dc3 100%);
    
    /* Navigation */
    --nav-bg: #1a1d29;
    --nav-text: #e8eaf6;
    --nav-active: #5c5edc;
    --nav-border: rgba(92, 94, 220, 0.2);
    --nav-hover: rgba(92, 94, 220, 0.1);
    --nav-height: 70px;
    
    /* Transitions */
    --transition: 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: 0.2s ease;
}

/* ===== MAIN NAVIGATION ===== */
.xsv-nav {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    z-index: 1000;
    background: rgba(26, 29, 41, 0.95);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-bottom: 1px solid var(--nav-border);
    transition: transform var(--transition);
}

.nav-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 0 2rem;
    display: flex;
    align-items: center;
    justify-content: space-between;
    height: var(--nav-height);
}

/* ===== LOGO STYLING ===== */
.xsv-logo {
    font-family: 'Inter', sans-serif;
    font-size: 1.5rem;
    font-weight: 700;
    letter-spacing: -1px;
    display: inline-flex;
    align-items: center;
}

/* ===== AI STATUS BADGE ===== */
.ai-status-badge {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    background: rgba(92, 94, 220, 0.15);
    border: 1px solid rgba(92, 94, 220, 0.4);
    border-radius: 20px;
    font-size: 0.75rem;
    font-weight: 600;
    color: var(--xsv-violet);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.ai-pulse {
    width: 8px;
    height: 8px;
    background: var(--xsv-ai-green);
    border-radius: 50%;
    animation: aiPulse 2s infinite;
    box-shadow: 0 0 8px var(--xsv-ai-green);
}

@keyframes aiPulse {
    0%, 100% {
        opacity: 1;
        transform: scale(1);
        box-shadow: 0 0 8px var(--xsv-ai-green);
    }
    50% {
        opacity: 0.6;
        transform: scale(1.2);
        box-shadow: 0 0 16px var(--xsv-ai-green);
    }
}

/* ===== NAVIGATION LINKS ===== */
.nav-links {
    display: flex;
    align-items: center;
    gap: 2rem;
}

.nav-link {
    color: var(--nav-text);
    text-decoration: none;
    font-size: 0.95rem;
    font-weight: 500;
    transition: color var(--transition-fast);
    position: relative;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.nav-link:hover,
.nav-link.active {
    color: var(--nav-active);
}

/* Chevron arrows for dropdown items */
.nav-chevron {
    margin-left: 4px;
    opacity: 0.6;
    transition: all var(--transition-fast);
    stroke: currentColor;
}

.nav-item.has-mega:hover .nav-chevron,
.nav-item.has-mega.active .nav-chevron {
    opacity: 1;
    transform: rotate(180deg);
}

/* ===== CTA BUTTON ===== */
.nav-cta {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 12px 24px;
    background: var(--xsv-burnt-coral);
    color: #ffffff;
    border-radius: 8px;
    font-weight: 600;
    text-decoration: none;
    transition: all var(--transition-fast);
}

.nav-cta:hover {
    background: var(--xsv-violet);
    transform: translateY(-2px);
    box-shadow: 0 8px 16px rgba(92, 94, 220, 0.3);
}

/* ===== MOBILE MENU BUTTON ===== */
.mobile-menu-btn {
    display: none;
    flex-direction: column;
    gap: 5px;
    background: none;
    border: none;
    padding: 8px;
    cursor: pointer;
    z-index: 2001;
    position: relative;
}

.burger-line {
    width: 24px;
    height: 2px;
    background: var(--xsv-violet);
    border-radius: 2px;
    transition: all var(--transition-fast);
}

.mobile-menu-btn.active .burger-line {
    background: var(--xsv-burnt-coral);
}

.mobile-menu-btn.active .burger-line:nth-child(1) {
    transform: rotate(45deg) translate(7px, 7px);
}

.mobile-menu-btn.active .burger-line:nth-child(2) {
    opacity: 0;
}

.mobile-menu-btn.active .burger-line:nth-child(3) {
    transform: rotate(-45deg) translate(6px, -6px);
}

/* ===== GRADIENT TEXT ===== */
.gradient-text {
    background: var(--xsv-gradient-text);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

/* === MEGA MENUS === */
.mega-menu {
    position: fixed;
    top: var(--nav-height);
    left: 0;
    right: 0;
    background: rgba(26, 29, 41, 0.98);
    backdrop-filter: blur(30px);
    -webkit-backdrop-filter: blur(30px);
    border-bottom: 1px solid var(--nav-border);
    opacity: 0;
    visibility: hidden;
    transform: translateY(-10px);
    transition: all var(--transition);
    max-height: calc(100vh - var(--nav-height));
    overflow-y: auto;
    z-index: 999;
}

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

.mega-container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 3rem 2rem;
}

.mega-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr);
    gap: 2rem;
    margin-bottom: 2rem;
}

.mega-grid-3 {
    grid-template-columns: repeat(3, 1fr);
}

.mega-grid-4 {
    grid-template-columns: repeat(4, 1fr);
}

.mega-column {
    display: flex;
    flex-direction: column;
    gap: 1rem;
}

.mega-header {
    display: flex;
    align-items: center;
    gap: 0.75rem;
    margin-bottom: 0.5rem;
}

.mega-icon {
    color: var(--xsv-violet);
}

.mega-header h3 {
    font-size: 16px;
    font-weight: 700;
    color: var(--nav-text);
    margin: 0;
}

.mega-list {
    list-style: none;
    padding: 0;
    margin: 0;
    display: flex;
    flex-direction: column;
    gap: 0.5rem;
}

.mega-list li a {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0.5rem 0.75rem;
    color: #a0a8b4;
    text-decoration: none;
    font-size: 14px;
    font-weight: 500;
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.mega-list li a:hover {
    color: var(--nav-text);
    background: var(--nav-hover);
    transform: translateX(4px);
}

.badge {
    padding: 2px 6px;
    background: rgba(10, 145, 145, 0.2);
    color: #0a9191;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
}

.badge-hot {
    padding: 2px 6px;
    background: rgba(255, 107, 107, 0.2);
    color: #ff6b6b;
    border-radius: 4px;
    font-size: 10px;
    font-weight: 600;
}

/* === INDUSTRY CARDS === */
.industry-card {
    padding: 1.5rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--nav-border);
    border-radius: 8px;
    transition: all var(--transition);
    cursor: pointer;
}

.industry-card:hover {
    background: rgba(255, 255, 255, 0.05);
    border-color: var(--xsv-violet);
    transform: translateY(-2px);
}

.industry-icon {
    font-size: 32px;
    margin-bottom: 1rem;
}

.industry-card h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--nav-text);
    margin: 0 0 0.5rem 0;
}

.industry-card p {
    font-size: 13px;
    color: #a0a8b4;
    margin: 0;
}

/* === MEGA MENU FOOTER === */
.mega-footer {
    border-top: 1px solid var(--nav-border);
    padding-top: 2rem;
}

.mega-cta {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    background: rgba(92, 94, 220, 0.05);
    border: 1px solid rgba(92, 94, 220, 0.2);
    border-radius: 8px;
}

.mega-cta h4 {
    font-size: 16px;
    font-weight: 700;
    color: var(--nav-text);
    margin: 0 0 0.25rem 0;
}

.mega-cta p {
    font-size: 13px;
    color: #a0a8b4;
    margin: 0;
}

.mega-cta-btn {
    padding: 0.75rem 1.5rem;
    background: var(--xsv-burnt-coral);
    color: white;
    text-decoration: none;
    font-size: 14px;
    font-weight: 600;
    border-radius: 6px;
    white-space: nowrap;
    transition: all var(--transition-fast);
}

.mega-cta-btn:hover {
    background: var(--xsv-violet);
    transform: translateY(-1px);
    box-shadow: 0 4px 12px rgba(92, 94, 220, 0.3);
}

/* === MOBILE MENU === */
.mobile-menu {
    position: fixed;
    top: 0;
    right: -100%;
    width: 320px;
    max-width: 90%;
    height: 100vh;
    background: var(--nav-bg);
    z-index: 2000;
    transition: right var(--transition);
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.mobile-menu.active {
    right: 0;
}

.mobile-menu-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.5rem;
    border-bottom: 1px solid var(--nav-border);
}

.mobile-logo {
    font-family: 'Inter', sans-serif;
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -1px;
}

.mobile-close {
    background: none;
    border: none;
    color: var(--nav-text);
    cursor: pointer;
    padding: 0.5rem;
}

.mobile-close svg {
    stroke: var(--xsv-violet);
}

.mobile-menu-content {
    padding: 1.5rem;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    flex: 1;
    overflow-y: auto;
}

.mobile-link {
    padding: 0.875rem 1rem;
    color: var(--nav-text);
    text-decoration: none;
    font-size: 1rem;
    font-weight: 600;
    border-radius: 6px;
    transition: all var(--transition-fast);
}

.mobile-link:hover {
    background: var(--nav-hover);
    color: var(--xsv-violet);
}

.mobile-cta {
    margin-top: 1rem;
    padding: 0.875rem 1rem;
    background: var(--xsv-burnt-coral);
    color: white;
    text-decoration: none;
    font-size: 1rem;
    font-weight: 600;
    text-align: center;
    border-radius: 8px;
    transition: all var(--transition-fast);
}

.mobile-cta:hover {
    background: var(--xsv-violet);
    box-shadow: 0 4px 12px rgba(92, 94, 220, 0.3);
}

/* === MOBILE ACCORDION === */
.mobile-accordion {
    border-radius: 6px;
    overflow: hidden;
}

.mobile-accordion-btn {
    width: 100%;
    padding: 0.875rem 1rem;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--nav-border);
    color: var(--nav-text);
    font-size: 1rem;
    font-weight: 600;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    transition: all var(--transition-fast);
    border-radius: 6px;
}

.mobile-accordion-btn:hover {
    background: var(--nav-hover);
}

.accordion-icon {
    stroke: var(--xsv-violet);
    transition: transform var(--transition-fast);
}

.mobile-accordion-btn.active .accordion-icon {
    transform: rotate(180deg);
}

.mobile-accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height var(--transition);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid var(--nav-border);
    border-top: none;
    display: flex;
    flex-direction: column;
    margin-top: -1px;
}

.mobile-accordion-content.active {
    max-height: 500px;
}

.mobile-accordion-content a {
    padding: 0.75rem 1rem;
    color: #a0a8b4;
    text-decoration: none;
    font-size: 0.9rem;
    font-weight: 500;
    transition: all var(--transition-fast);
}

.mobile-accordion-content a:hover {
    color: var(--nav-text);
    background: var(--nav-hover);
}

/* === MOBILE OVERLAY === */
.mobile-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.8);
    z-index: 1500;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition);
}

.mobile-overlay.active {
    opacity: 1;
    visibility: visible;
}

/* === SIDE NAVIGATION - FIXED: NO MORE RED LINE === */
.side-nav {
    position: fixed;
    right: 2rem;
    top: 50%;
    transform: translateY(-50%);
    display: flex;
    flex-direction: column;
    gap: 1rem;
    z-index: 500;
}

.side-nav-progress {
    position: absolute;
    left: 0;
    top: 0;
    width: 2px;
    height: 0%;
    background: var(--xsv-gradient-progress); /* ✅ FIXED: Violet to Teal only */
    transition: height 0.1s linear;
}

.side-nav-item {
    position: relative;
    width: 10px;
    height: 10px;
    background: rgba(255, 255, 255, 0.2);
    border-radius: 50%;
    transition: all var(--transition-fast);
    text-decoration: none;
}

.side-nav-item:hover,
.side-nav-item.active {
    background: var(--xsv-violet);
    transform: scale(1.3);
}

.side-nav-label {
    position: absolute;
    right: 20px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--nav-bg);
    padding: 0.375rem 0.75rem;
    border-radius: 4px;
    font-size: 12px;
    font-weight: 600;
    color: var(--nav-text);
    white-space: nowrap;
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-fast);
}

.side-nav-item:hover .side-nav-label {
    opacity: 1;
    visibility: visible;
    right: 25px;
}

/* === RESPONSIVE === */
@media (max-width: 1024px) {
    .side-nav {
        display: none;
    }

    .ai-status-badge {
        position: absolute;
        top: 50%;
        right: 70px;
        transform: translateY(-50%);
        padding: 6px 12px;
        font-size: 0.65rem;
    }

    .ai-pulse {
        width: 10px;
        height: 10px;
    }

    .nav-links {
        display: none;
    }

    .mobile-menu-btn {
        display: flex;
    }
}

@media (max-width: 768px) {
    :root {
        --nav-height: 60px;
    }

    .nav-container {
        padding: 0 1rem;
    }

    .xsv-logo {
        font-size: 1.25rem;
    }

    .ai-status-badge {
        right: 65px;
        padding: 5px 10px;
    }

    .mobile-menu {
        width: 100%;
        max-width: 100%;
    }

    .mega-grid,
    .mega-grid-3,
    .mega-grid-4 {
        grid-template-columns: 1fr;
        gap: 1.5rem;
    }
}

/* === SCROLLBAR STYLING === */
.mega-menu::-webkit-scrollbar,
.mobile-menu::-webkit-scrollbar {
    width: 8px;
}

.mega-menu::-webkit-scrollbar-track,
.mobile-menu::-webkit-scrollbar-track {
    background: rgba(255, 255, 255, 0.05);
}

.mega-menu::-webkit-scrollbar-thumb,
.mobile-menu::-webkit-scrollbar-thumb {
    background: rgba(92, 94, 220, 0.5);
    border-radius: 4px;
}

.mega-menu::-webkit-scrollbar-thumb:hover,
.mobile-menu::-webkit-scrollbar-thumb:hover {
    background: var(--xsv-violet);
}

/* === MOBILE MENU FOOTER === */
.mobile-menu-footer {
    margin-top: auto;
    padding: 1.5rem;
    border-top: 1px solid var(--nav-border);
    background: rgba(255, 255, 255, 0.02);
}

.mobile-menu-footer p {
    margin: 0;
    font-size: 0.75rem;
    color: #a0a8b4;
    text-align: center;
    font-weight: 500;
    letter-spacing: 0.3px;
}