/* =========================================
   1. VARIABLES & BASE SETUP
   ========================================= */
:root {
    /* Colors */
    --bg-primary: #0f0c29;
    --accent-cyan: #00f2ea;
    --accent-blue: #4facfe;
    --accent-red: #ff0055;
    --accent-green: #22c55e;
    
    /* Glass Effect */
    --glass-bg: rgba(20, 20, 35, 0.6);
    --glass-border: rgba(255, 255, 255, 0.08);
    --glass-highlight: rgba(255, 255, 255, 0.1);
    
    /* Layout */
    --nav-width: 70px;
    --sidebar-width: 260px;
}

* {
    box-sizing: border-box;
}

body {
    background: var(--bg-primary);
    font-family: 'Inter', sans-serif;
    color: white;
    margin: 0;
    padding: 0;
    overflow: hidden; /* App-like feel */
    height: 100vh;
    width: 100vw;
}

/* =========================================
   2. BACKGROUND ANIMATIONS
   ========================================= */
.blob {
    position: absolute;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.5;
    z-index: -1;
    animation: float 10s infinite ease-in-out;
}

.blob-1 {
    width: 500px;
    height: 500px;
    background: var(--accent-blue);
    top: -100px;
    left: -100px;
}

.blob-2 {
    width: 400px;
    height: 400px;
    background: #764ba2;
    bottom: -50px;
    right: -50px;
    animation-delay: 2s;
}

@keyframes float {
    0% { transform: translate(0, 0); }
    50% { transform: translate(30px, -30px); }
    100% { transform: translate(0, 0); }
}

/* =========================================
   3. LAYOUT GRID
   ========================================= */
.app-grid {
    display: flex;
    height: 100%;
    width: 100%;
}

/* =========================================
   4. NAVIGATION RAIL (Leftmost Strip)
   ========================================= */
nav {
    width: var(--nav-width);
    background: rgba(0, 0, 0, 0.4);
    border-right: 1px solid var(--glass-border);
    backdrop-filter: blur(20px);
    display: flex;
    flex-direction: column;
    align-items: center;
    padding-top: 20px;
    gap: 15px;
    z-index: 20;
}

.nav-btn {
    width: 48px;
    height: 48px;
    border-radius: 14px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(255, 255, 255, 0.4);
    transition: all 0.2s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    border: none;
    background: transparent;
}

.nav-btn:hover {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    transform: translateY(-2px);
}

.nav-btn.active {
    background: var(--accent-cyan);
    color: #000;
    box-shadow: 0 0 20px rgba(0, 242, 234, 0.4);
}

/* =========================================
   5. SIDEBAR (Channels / Friends)
   ========================================= */
.sidebar {
    width: var(--sidebar-width);
    background: rgba(0, 0, 0, 0.2);
    border-right: 1px solid var(--glass-border);
    display: flex;
    flex-direction: column;
    transition: width 0.3s ease;
}

.channel-list {
    flex: 1;
    overflow-y: auto;
    padding: 10px;
}

.channel-item {
    padding: 10px 12px;
    margin-bottom: 4px;
    border-radius: 8px;
    cursor: pointer;
    transition: 0.2s;
    display: flex;
    align-items: center;
    gap: 10px;
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.95rem;
}

.channel-item:hover {
    background: rgba(255, 255, 255, 0.05);
    color: white;
}

.channel-item.active {
    background: rgba(255, 255, 255, 0.1);
    color: white;
    border-left: 3px solid var(--accent-cyan);
}

/* User Profile Panel (Bottom of Sidebar) */
.user-panel {
    padding: 12px;
    background: rgba(0, 0, 0, 0.3);
    border-top: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    gap: 10px;
}

.user-info {
    flex: 1;
    overflow: hidden;
}

/* === ADMIN ACCESS BUTTON (The "Chip") === */
.user-tag {
    font-size: 0.6rem;
    font-weight: 800;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    
    /* Visuals */
    color: rgba(255, 255, 255, 0.9);
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.2);
    padding: 4px 8px;
    border-radius: 6px;
    
    cursor: pointer;
    transition: all 0.2s ease-in-out;
    display: inline-block;
    margin-top: 4px;
    user-select: none;
}

.user-tag:hover {
    background: var(--accent-cyan);
    color: #000;
    border-color: var(--accent-cyan);
    box-shadow: 0 0 15px rgba(0, 242, 234, 0.6);
    transform: translateY(-1px);
}

/* =========================================
   6. MAIN CHAT AREA
   ========================================= */
.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    position: relative;
    background: rgba(0, 0, 0, 0.1);
}

.chat-header {
    height: 64px;
    border-bottom: 1px solid var(--glass-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 24px;
    background: rgba(255, 255, 255, 0.02);
    backdrop-filter: blur(10px);
}

.messages-container {
    flex: 1;
    overflow-y: auto;
    padding: 20px 24px;
    display: flex;
    flex-direction: column;
}

/* =========================================
   7. MODALS (Login, Admin, Settings)
   ========================================= */
.modal-overlay {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(12px);
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.3s ease;
}

.modal-overlay.open {
    opacity: 1;
    pointer-events: all;
}

.modal-box {
    background: #151520;
    border: 1px solid var(--glass-border);
    padding: 2.5rem;
    border-radius: 20px;
    width: 400px;
    max-width: 90%;
    box-shadow: 0 20px 50px rgba(0, 0, 0, 0.5);
    transform: scale(0.95);
    transition: transform 0.3s cubic-bezier(0.34, 1.56, 0.64, 1);
}

.modal-overlay.open .modal-box {
    transform: scale(1);
}

/* Admin Specifics */
#admin-modal .modal-box {
    border-color: rgba(255, 0, 85, 0.3);
    box-shadow: 0 0 30px rgba(255, 0, 85, 0.1);
}

/* =========================================
   8. UTILITIES & ANIMATIONS
   ========================================= */

/* Voice Status Dots */
.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: #666;
}
.status-dot.connecting { background: #fbbf24; animation: pulse 1s infinite; }
.status-dot.connected { background: var(--accent-cyan); box-shadow: 0 0 8px var(--accent-cyan); }
@keyframes pulse { 0% { opacity: 1; } 50% { opacity: 0.4; } 100% { opacity: 1; } }

/* Custom Scrollbar */
.custom-scrollbar::-webkit-scrollbar {
    width: 6px;
}
.custom-scrollbar::-webkit-scrollbar-track {
    background: transparent;
}
.custom-scrollbar::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}
.custom-scrollbar::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Input Focus Glow */
input:focus {
    box-shadow: 0 0 0 2px rgba(0, 242, 234, 0.2);
}