:root {
    --bg-primary: #020617; /* Vanguard Obsidian */
    --bg-secondary: #0f172a; /* Vanguard Deep Slate */
    --accent-cyan: #f59e0b; /* REPLACED WITH VANGUARD GOLD */
    /* --- GEMINI 3.1 FLASH LITE PREVIEW TOKENS --- */
    --vanguard-primary: oklch(85% 0.18 142); /* Flash Neon Lime */
    --vanguard-secondary: #0ea5e9;
    --accent-gold: #f59e0b;
    --accent-red: #ef4444;
    --accent-green: oklch(85% 0.18 142);
    --accent-purple: #8b5cf6;
    --text-primary: #f8fafc;
    --text-mute: #94a3b8;
    --glass-bg: rgba(8, 10, 15, 0.85);
    --glass-border: rgba(180, 255, 0, 0.2);
    --flash-glow: 0 0 25px rgba(180, 255, 0, 0.2);
    --sidebar-width: 260px;
    --header-height: 64px;

    /* Spacing & Radius Utilities */
    --space-1: 0.25rem;
    --space-2: 0.5rem;
    --space-3: 0.75rem;
    --space-4: 1rem;
    --space-6: 1.5rem;
    --space-8: 2rem;
    --space-12: 3rem;
    --radius-sm: 4px;
    --radius-md: 6px;
    --radius-lg: 8px;

    /* --- NEXUS DESIGN TOKENS (MASTER ARCHITECT PRO) --- */
    --nexus-surface: rgba(15, 23, 42, 0.6);
    --nexus-glass-border: rgba(255, 255, 255, 0.08);
    --glass-blur: blur(20px);
    --active-glow: 0 0 20px rgba(8, 145, 178, 0.25);
}

* { box-sizing: border-box; }

html, body {
    margin: 0 !important;
    padding: 0 !important;
    background: var(--bg-primary) !important;
    color: var(--text-primary) !important;
    height: 100vh !important;
    width: 100vw !important;
    overflow: hidden !important; /* Lock scroll to internal elements */
    font-family: 'Inter', -apple-system, system-ui, sans-serif !important;
}

/* 1. FLEX COLUMN (Body: Top Bar + App Root) */
body {
    display: flex !important;
    flex-direction: column !important;
}

/* 2. TOP BAR: FULL WIDTH (TOP) */
.top-bar, .top-nav {
    height: var(--header-height) !important;
    flex-shrink: 0 !important;
    background: var(--bg-secondary) !important;
    border-bottom: 2px solid var(--vanguard-primary) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: space-between !important;
    padding: 0 32px !important;
    z-index: 100 !important;
    backdrop-filter: blur(12px) !important;
    box-shadow: 0 4px 20px rgba(0,0,0,0.4) !important;
}

/* 3. APP ROOT: EXPAND TO FILL REMAINING SPACE */
#app-root {
    flex: 1 !important;
    display: flex !important;
    flex-direction: column !important;
    overflow: hidden !important;
}

/* 4. WORKSPACE: FLEX ROW (Sidebar + Content Side-by-Side) */
#app-workspace {
    flex: 1 !important;
    display: flex !important;
    flex-direction: row !important;
    width: 100% !important;
    overflow: hidden !important;
}

/* 5. SIDEBAR: PINNED TO LEFT (STICKY/FIXED WIDTH) */
.sidebar-v2-container, .sidebar {
    width: var(--sidebar-width) !important;
    height: 100% !important;
    flex-shrink: 0 !important;
    background: var(--bg-secondary) !important;
    border-right: 1px solid var(--glass-border) !important;
    display: flex !important;
    flex-direction: column !important;
    padding: 16px !important;
    overflow-y: auto !important;
    z-index: 90 !important;
    backdrop-filter: blur(10px) !important;
}

/* 6. MAIN CONTENT: EXPAND TO FILL VIEWPORT */
.main-content {
    flex: 1 !important;
    height: 100% !important;
    display: flex !important;
    flex-direction: column !important;
    overflow: hidden !important;
    background: var(--bg-primary) !important;
    position: relative !important;
}

/* 7. VIEW SECTIONS: MODULAR CONTENT AREAS */
.view-section {
    display: none; /* Controlled by showView() */
    width: 100% !important;
    height: 100% !important;
    overflow-y: auto !important;
    background: transparent !important; /* Let main-content handle bg */
}

.view-section.active {
    display: flex !important;
    flex-direction: column !important;
}

/* FORCE HIDE ANY PHANTOM SPACING */
#app-workspace > *:not(.sidebar-v2-container):not(.main-content):not(.view-section) {
    display: none !important;
}

/* MOBILE & RESPONSIVE OPTIMIZATION */
.mobile-nav-toggle {
    display: none !important; /* Default hidden on Desktop/PC */
    background: transparent !important;
    border: none !important;
    color: white !important;
    font-size: 1.4rem !important;
    cursor: pointer !important;
    padding: 8px !important;
    margin-right: 12px !important;
    outline: none !important;
}

/* Sidebar Overlay (Mobile Only) */
.sidebar-overlay {
    position: fixed !important;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6) !important;
    backdrop-filter: blur(4px) !important;
    z-index: 150 !important;
    display: none !important;
}

.sidebar-overlay.active {
    display: block !important;
}

/* ================================== */
/* 3. MOBILE SHELL & 1-PANE LOCK (SYNCED TO 1024px) */
/* ================================== */
@media (max-width: 1024px) {
    .mobile-nav-toggle {
        display: flex !important; /* Neutralize inline style="display: none;" poison */
    }

    .top-bar {
        padding: 0 12px !important;
        height: 56px !important;
    }

    /* --- VIEWPORT LOCK: No body/shell scrollbars --- */
    html, body {
        height: 100vh !important;
        height: 100dvh !important;
        overflow: hidden !important; 
        position: fixed;
        width: 100%;
        overscroll-behavior: none;
    }

    #app-root {
        height: calc(100vh - 56px) !important;
        height: calc(100dvh - 56px) !important;
        overflow: hidden !important;
    }

    #app-workspace {
        flex-direction: column !important;
        height: 100% !important;
        overflow: hidden !important;
    }

    /* --- SIDEBAR: Fixed overlay drawer on mobile --- */
    .sidebar-v2-container {
        display: none !important;
        position: fixed !important;
        top: 0 !important;
        left: 0 !important;
        width: 280px !important;
        height: 100vh !important;
        height: 100dvh !important;
        z-index: 20000 !important;
        border-right: 1px solid var(--nexus-glass-border) !important;
        box-shadow: 20px 0 50px rgba(0,0,0,0.5) !important;
        overflow-y: auto !important;
    }

    .sidebar-v2-container.active,
    .sidebar-v2-container.open {
        display: flex !important;
    }

    /* --- MAIN CONTENT: Fill remaining viewport --- */
    .main-content {
        padding: 0 !important;
        width: 100% !important;
        height: 100% !important;
        overflow: hidden !important;
        flex: 1 !important;
        min-height: 0 !important;
    }

    /* --- VIEW SECTIONS: Internal scroll only --- */
    .view-section {
        padding: 8px !important;
        height: 100% !important;
        overflow-y: auto !important;
        overflow-x: hidden !important;
        -webkit-overflow-scrolling: touch !important;
    }

    /* Hide native scrollbar on view sections for clean look */
    .view-section::-webkit-scrollbar {
        width: 3px !important;
    }
    .view-section::-webkit-scrollbar-thumb {
        background: rgba(255,255,255,0.1) !important;
        border-radius: 4px !important;
    }

    /* BOSS MODE v5: Global Modal & Wizard Mobile Override */
    .wizard-anim,
    .rugged-card,
    .card,
    [style*="width: 1200px"],
    [style*="width:1200px"],
    [style*="width: 1100px"],
    [style*="width:1100px"],
    [style*="width: 1000px"],
    [style*="width:1000px"] {
        width: 100% !important;
        max-width: 100vw !important;
        height: auto !important;
        max-height: none !important;
        border-radius: 0 !important;
        border-left: 4px solid var(--vanguard-primary) !important;
    }

    /* Kill large paddings on mobile */
    [style*="padding: 40px"],
    [style*="padding:40px"] {
        padding: 16px 12px !important;
    }

    /* Max-width containers should be 100% on mobile */
    [style*="max-width: 1400px"],
    [style*="max-width: 1200px"],
    [style*="max-width: 1100px"],
    [style*="max-width: 1000px"],
    [style*="max-width:1400px"],
    [style*="max-width:1200px"],
    [style*="max-width:1100px"],
    [style*="max-width:1000px"] {
        max-width: 100% !important;
        padding-left: 12px !important;
        padding-right: 12px !important;
    }
}

/* DESKTOP RECOVERY (ENSURE SIDEBAR IS ALWAYS VISIBLE > 1024px) */
@media (min-width: 1024px) {
    .sidebar-v2-container {
        left: 0 !important;
        position: relative !important;
    }
    
    .main-content {
        padding-top: 32px !important;
        margin-top: 0 !important;
    }
}

/* --- PREMIUM GLASSMORPHISM UTILITIES --- */
.glass-panel {
    background: var(--glass-bg) !important;
    backdrop-filter: var(--glass-blur) !important;
    border: 1px solid var(--glass-border) !important;
    border-radius: 20px !important;
    padding: 32px !important;
    box-shadow: var(--shadow-premium) !important;
    position: relative;
    overflow: hidden;
}

.glass-panel::after {
    content: '';
    position: absolute;
    inset: 0;
    background: url('https://www.transparenttextures.com/patterns/carbon-fibre.png'); /* Subtle texture */
    opacity: 0.03;
    pointer-events: none;
}

.glass-card {
    background: rgba(30, 41, 59, 0.3) !important;
    backdrop-filter: blur(12px) !important;
    border: 1px solid var(--glass-border-subtle) !important;
    border-radius: 16px !important;
    padding: 20px !important;
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1) !important;
}

.glass-card:hover {
    background: rgba(30, 41, 59, 0.5) !important;
    border-color: var(--vanguard-primary) !important;
    transform: translateY(-4px) !important;
    box-shadow: var(--glow-primary) !important;
}

/* --- VANGUARD 4.0 COMPONENTS --- */
.vanguard-card {
    background: var(--glass-bg) !important;
    backdrop-filter: var(--glass-blur) !important;
    border: 1px solid var(--glass-border) !important;
    border-radius: 20px !important;
    padding: 32px !important;
    box-shadow: var(--shadow-premium) !important;
    position: relative;
    overflow: hidden;
}

.vanguard-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 3px;
    background: linear-gradient(90deg, transparent, var(--vanguard-primary), var(--vanguard-secondary), transparent);
    animation: slide-shimmer 4s infinite linear;
}

@keyframes slide-shimmer {
    from { background-position: -200% 0; }
    to { background-position: 200% 0; }
}

.vanguard-badge {
    background: oklch(85% 0.18 142 / 0.1) !important;
    border: 1px solid var(--vanguard-primary) !important;
    color: var(--vanguard-primary) !important;
    padding: 6px 14px !important;
    border-radius: 300px !important;
    font-size: 0.7rem !important;
    font-weight: 800 !important;
    text-transform: uppercase !important;
    letter-spacing: 0.1em !important;
    box-shadow: var(--glow-primary);
}

.agent-pulse {
    width: 8px;
    height: 8px;
    background: var(--vanguard-primary);
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 10px var(--vanguard-primary);
    animation: flash-pulse 2s infinite;
}

@keyframes flash-pulse {
    0% { transform: scale(1); opacity: 1; box-shadow: 0 0 10px var(--vanguard-primary); }
    50% { transform: scale(1.5); opacity: 0.5; box-shadow: 0 0 20px var(--vanguard-primary); }
    100% { transform: scale(1); opacity: 1; box-shadow: 0 0 10px var(--vanguard-primary); }
}

.title-preview {
    font-size: 0.7rem;
    font-weight: 800;
    text-transform: uppercase;
    color: var(--vanguard-primary);
    letter-spacing: 0.1em;
    opacity: 0.8;
}

/* --- SCROLLBAR THEME --- */
::-webkit-scrollbar {
    width: 6px !important;
    height: 6px !important;
}

::-webkit-scrollbar-track {
    background: transparent !important;
}

::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1) !important;
    border-radius: 10px !important;
}

::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2) !important;
}

/* ============================================ */
/* 🚨 SCROLL FIX: Vanguard Layout Repair */
/* ============================================ */

/* 1. Allow body to scroll (remove hard lock) */
html, body {
  overflow-y: auto !important;
  overflow-x: hidden !important;
  height: auto !important;
  min-height: 100vh !important;
  position: relative !important;
}

/* 2. Fix app workspace flex layout */
#app-workspace {
  height: auto !important;
  min-height: calc(100vh - var(--header-height, 64px)) !important;
  overflow: visible !important;
  display: flex !important;
  flex-direction: column !important;
}

/* 3. Main content: allow scroll + bottom padding for nav */
.main-content {
  flex: 1 !important;
  height: auto !important;
  min-height: calc(100vh - var(--header-height, 64px) - var(--nav-height, 72px)) !important;
  overflow-y: auto !important;
  overflow-x: hidden !important;
  padding-bottom: calc(var(--nav-height, 72px) + var(--safe-bottom, 0px) + 20px) !important;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch; /* iOS smooth scroll */
}

/* 4. View sections: enable internal scroll */
.view-section {
  display: none !important;
  opacity: 0;
  transition: opacity 0.3s;
  width: 100% !important;
  height: auto !important;
  min-height: 100% !important;
  overflow-y: auto !important;
  overflow-x: hidden !important;
  padding: 24px 16px calc(var(--nav-height, 72px) + 40px) 16px !important;
}

.view-section.active {
  display: block !important;
  opacity: 1;
}

/* 5. Bottom nav: ensure it stays on top but doesn't block clicks */
.bottom-nav, .vanguard-bottom-nav {
  position: fixed !important;
  bottom: 0 !important;
  left: 0 !important;
  right: 0 !important;
  height: var(--nav-height, 72px) !important;
  z-index: 1000 !important;
  pointer-events: auto !important;
  /* Add subtle shadow to visually separate from content */
  box-shadow: 0 -4px 20px rgba(0, 0, 0, 0.3) !important;
}

/* 6. Mobile: ensure touch targets stay usable */
@media (max-width: 768px) {
  .main-content {
    padding-bottom: calc(var(--nav-height, 72px) + var(--safe-bottom, 0px) + 30px) !important;
  }
  
  /* Prevent iOS bounce scroll from exposing background */
  .main-content::before {
    content: '';
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: 100px;
    background: var(--bg-primary);
    pointer-events: none;
    z-index: -1;
  }
}

/* 7. Fix glass cards inside scrollable areas */
.glass-card, .section-card, .launchpad-card, .rugged-card {
  will-change: transform; /* Improve scroll performance */
  transform: translateZ(0); /* Force GPU layer */
}

/* 8. Ensure modals still work over fixed nav */
.glass-modal, .glass-modal-alt, .bottom-sheet {
  z-index: 2000 !important;
}

/* ================================== */
/* ⭐ EXTRA POLISH: Scroll Progress */
/* ================================== */
.main-content::after {
  content: '';
  position: fixed;
  top: var(--header-height, 64px);
  left: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--vanguard-secondary), var(--vanguard-primary));
  width: var(--scroll-progress, 0%);
  z-index: 999;
  transition: width 0.1s;
  pointer-events: none;
}