/**
 * GLASSMORPHISM / NEUMORPHISM THEME
 * Modern Design Studio Chat Interface
 * Style: 2025 Vibrant Gradients with Floating Glass Cards
 */

/* ========================================
   IMPORT MODERN FONT
======================================== */
@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700;800&family=Outfit:wght@300;400;500;600;700;800&display=swap');

/* ========================================
   CSS VARIABLES - COLOR PALETTE
======================================== */
:root {
    /* Vibrant Gradient Colors - Refined for Satin Look */
    --primary-blue: #4A90E2;
    --primary-purple: #7B68EE;
    --primary-magenta: #E94B8B;
    --primary-pink: #FF6B9D;
    --primary-cyan: #00D9FF;
    --primary-violet: #9D4EDD;

    /* Dark Background Gradients */
    --bg-dark-1: #0a0a0f;
    /* Deeper black/blue */
    --bg-dark-2: #14141f;
    --bg-dark-3: #1f1f2e;
    --bg-gradient-1: linear-gradient(135deg, #14141f 0%, #0a0a0f 100%);
    --bg-gradient-2: linear-gradient(135deg, #252233 0%, #14141f 100%);

    /* Satin/Frosted Glass Effect Colors */
    /* More opaque, less transparent, smoother blur */
    --glass-bg: rgba(255, 255, 255, 0.08);
    /* Slightly more opaque base */
    --glass-bg-hover: rgba(255, 255, 255, 0.12);
    --glass-bg-active: rgba(255, 255, 255, 0.15);

    /* The "Satin" Border - Crisper, lighter */
    --glass-border: rgba(255, 255, 255, 0.15);
    --glass-border-highlight: rgba(255, 255, 255, 0.3);
    /* Top/Left highlight */

    /* Shadows - Diffused and soft */
    --glass-shadow: 0 8px 32px 0 rgba(0, 0, 0, 0.3);
    --glass-inner-shadow: inset 0 0 20px rgba(255, 255, 255, 0.03);
    /* Inner glow for depth */

    /* Neumorphic Shadow - Refined */
    --neu-shadow-light: -4px -4px 12px rgba(255, 255, 255, 0.02);
    --neu-shadow-dark: 4px 4px 12px rgba(0, 0, 0, 0.4);
    --neu-shadow-inset-light: inset -2px -2px 6px rgba(255, 255, 255, 0.02);
    --neu-shadow-inset-dark: inset 2px 2px 6px rgba(0, 0, 0, 0.3);

    /* Text Colors */
    --text-primary: #FFFFFF;
    --text-secondary: rgba(255, 255, 255, 0.85);
    /* Increased readability */
    --text-muted: rgba(255, 255, 255, 0.55);
    --text-disabled: rgba(255, 255, 255, 0.3);

    /* Accent Colors */
    --accent-success: #10B981;
    --accent-warning: #F59E0B;
    --accent-error: #EF4444;
    --accent-info: #3B82F6;

    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-2xl: 3rem;

    /* Border Radius */
    --radius-sm: 8px;
    --radius-md: 12px;
    --radius-lg: 18px;
    /* Slightly rounder */
    --radius-xl: 28px;
    --radius-full: 9999px;

    /* Blur - The "Frosted" Key */
    --blur-sm: blur(10px);
    --blur-md: blur(16px);
    --blur-lg: blur(40px);
    /* Deep blur for background panels */
    --blur-xl: blur(60px);

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 300ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 500ms cubic-bezier(0.4, 0, 0.2, 1);
}

/* ========================================
   GLOBAL STYLES
======================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    background: var(--bg-dark-1);
    color: var(--text-primary);
    overflow: hidden;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

/* Animated Background Orbs */
body::before,
body::after {
    content: '';
    position: fixed;
    border-radius: 50%;
    filter: blur(80px);
    opacity: 0.3;
    animation: float 20s ease-in-out infinite;
    pointer-events: none;
    z-index: 0;
}

body::before {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, var(--primary-purple) 0%, transparent 70%);
    top: -200px;
    right: -200px;
    animation-delay: 0s;
}

body::after {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, var(--primary-magenta) 0%, transparent 70%);
    bottom: -150px;
    left: -150px;
    animation-delay: -10s;
}

@keyframes float {

    0%,
    100% {
        transform: translate(0, 0) scale(1);
    }

    33% {
        transform: translate(50px, -50px) scale(1.1);
    }

    66% {
        transform: translate(-30px, 30px) scale(0.9);
    }
}

/* ========================================
   LAYOUT - 3 COLUMN STRUCTURE
======================================== */
.chat-layout {
    display: grid;
    grid-template-columns: 320px 1fr 360px;
    height: 100vh;
    gap: 0;
    position: relative;
    z-index: 1;
    padding: var(--spacing-md);
}

/* ========================================
   LEFT SIDEBAR - CHAT LIST
======================================== */
.chat-sidebar {
    background: var(--glass-bg);
    backdrop-filter: var(--blur-lg);
    -webkit-backdrop-filter: var(--blur-lg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    border-top: 1px solid var(--glass-border-highlight);
    border-left: 1px solid var(--glass-border-highlight);
    box-shadow: var(--glass-shadow), var(--glass-inner-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.chat-sidebar::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(180deg, rgba(123, 104, 238, 0.1) 0%, transparent 100%);
    pointer-events: none;
    z-index: 0;
}

/* Sidebar Header */
.sidebar-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    position: relative;
    z-index: 1;
}

.sidebar-user {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-lg);
}

.sidebar-user-info {
    flex: 1;
}

.sidebar-user-name {
    font-size: 1rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.sidebar-user-status {
    font-size: 0.875rem;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--accent-success);
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 8px var(--accent-success);
    animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {

    0%,
    100% {
        opacity: 1;
        transform: scale(1);
    }

    50% {
        opacity: 0.7;
        transform: scale(0.95);
    }
}

/* Search Bar */
.sidebar-search {
    position: relative;
}

.sidebar-search input {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: 0.875rem;
    transition: all var(--transition-normal);
    box-shadow: var(--neu-shadow-inset-dark);
}

.sidebar-search input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-cyan);
    box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1), var(--neu-shadow-inset-dark);
}

.sidebar-search input::placeholder {
    color: var(--text-muted);
}

/* Chat List */
.chat-list {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-md);
    position: relative;
    z-index: 1;
}

.chat-list::-webkit-scrollbar {
    width: 6px;
}

.chat-list::-webkit-scrollbar-track {
    background: transparent;
}

.chat-list::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
}

.chat-list::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Chat Item */
.chat-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    margin-bottom: var(--spacing-sm);
    background: rgba(255, 255, 255, 0.02);
    border: 1px solid transparent;
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.chat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 3px;
    height: 100%;
    background: linear-gradient(180deg, var(--primary-cyan) 0%, var(--primary-purple) 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.chat-item:hover {
    background: var(--glass-bg-hover);
    border-color: var(--glass-border);
    backdrop-filter: var(--blur-sm);
    transform: translateY(-2px);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.1);
}

.chat-item:hover::before {
    opacity: 1;
}

.chat-item.active {
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.15) 0%, rgba(123, 104, 238, 0.15) 100%);
    border-color: rgba(74, 144, 226, 0.3);
}

.chat-item.active::before {
    opacity: 1;
}

.chat-item-avatar {
    flex-shrink: 0;
}

.chat-item-content {
    flex: 1;
    min-width: 0;
}

.chat-item-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-xs);
}

.chat-item-title {
    font-weight: 600;
    font-size: 0.9375rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-item-time {
    font-size: 0.75rem;
    color: var(--text-muted);
    flex-shrink: 0;
    margin-left: var(--spacing-sm);
}

.chat-item-preview {
    font-size: 0.875rem;
    color: var(--text-muted);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-item-unread {
    position: absolute;
    top: var(--spacing-md);
    right: var(--spacing-md);
    min-width: 20px;
    height: 20px;
    background: linear-gradient(135deg, var(--primary-magenta) 0%, var(--primary-pink) 100%);
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.75rem;
    font-weight: 600;
    color: white;
    padding: 0 6px;
    box-shadow: 0 4px 12px rgba(233, 75, 139, 0.4);
    animation: badge-pulse 2s ease-in-out infinite;
}

@keyframes badge-pulse {

    0%,
    100% {
        transform: scale(1);
    }

    50% {
        transform: scale(1.1);
    }
}

/* Avatar */
.avatar {
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-purple) 100%);
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    color: white;
    position: relative;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.3),
        inset 0 -2px 8px rgba(0, 0, 0, 0.2),
        inset 0 2px 8px rgba(255, 255, 255, 0.1);
}

.avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    border-radius: var(--radius-full);
}

.avatar-sm {
    width: 32px;
    height: 32px;
    font-size: 0.875rem;
}

.avatar-md {
    width: 44px;
    height: 44px;
    font-size: 1rem;
}

.avatar-lg {
    width: 56px;
    height: 56px;
    font-size: 1.5rem;
}

.avatar-xl {
    width: 80px;
    height: 80px;
    font-size: 2rem;
}

.avatar.online::after {
    content: '';
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 12px;
    height: 12px;
    background: var(--accent-success);
    border: 2px solid var(--bg-dark-1);
    border-radius: 50%;
    box-shadow: 0 0 8px var(--accent-success);
}

.avatar.offline::after {
    content: '';
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 12px;
    height: 12px;
    background: var(--accent-error);
    border: 2px solid var(--bg-dark-1);
    border-radius: 50%;
    box-shadow: 0 0 8px rgba(239, 68, 68, 0.4);
}

/* ========================================
   CENTER - MAIN CHAT AREA
======================================== */
.chat-main {
    background: var(--glass-bg);
    backdrop-filter: var(--blur-lg);
    -webkit-backdrop-filter: var(--blur-lg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    border-top: 1px solid var(--glass-border-highlight);
    border-left: 1px solid var(--glass-border-highlight);
    box-shadow: var(--glass-shadow), var(--glass-inner-shadow);
    margin: 0 var(--spacing-md);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

/* Chat Header */
.chat-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, transparent 100%);
}

.chat-header-info {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
}

.chat-header-title {
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--text-primary);
    margin-bottom: var(--spacing-xs);
}

.chat-header-subtitle {
    font-size: 0.875rem;
    color: var(--text-muted);
}

.chat-header-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* Chat Messages Area */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-xl);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-md);
}

.chat-messages::-webkit-scrollbar {
    width: 8px;
}

.chat-messages::-webkit-scrollbar-track {
    background: transparent;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
}

.chat-messages::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

/* Message Bubble */
.message {
    display: flex;
    gap: var(--spacing-md);
    animation: messageSlideIn 0.3s ease-out;
}

@keyframes messageSlideIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.message-avatar {
    flex-shrink: 0;
}

.message-content {
    max-width: 70%;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
}

.message-header {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.message-author {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-primary);
}

.message-time {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.message-bubble {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-lg);
    border-bottom-left-radius: 2px;
    background: rgba(255, 255, 255, 0.05);
    backdrop-filter: var(--blur-md);
    -webkit-backdrop-filter: var(--blur-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.1);
    color: var(--text-primary);
    line-height: 1.5;
    position: relative;
}

/* Own Messages (right aligned) */
.message.own {
    flex-direction: row-reverse;
}

.message.own .message-content {
    align-items: flex-end;
}

.message.own .message-bubble {
    background: linear-gradient(135deg, rgba(233, 75, 139, 0.15) 0%, rgba(255, 107, 157, 0.15) 100%);
    border: 1px solid rgba(255, 255, 255, 0.15);
    border-radius: var(--radius-lg);
    border-bottom-right-radius: 2px;
    box-shadow: 0 2px 8px rgba(233, 75, 139, 0.15);
}

/* Chat Input */
.chat-input {
    padding: var(--spacing-lg);
    border-top: 1px solid var(--glass-border);
    background: rgba(0, 0, 0, 0.2);
    backdrop-filter: var(--blur-md);
}

.chat-input-wrapper {
    display: flex;
    gap: var(--spacing-md);
    align-items: flex-end;
}

.chat-input-field {
    flex: 1;
    position: relative;
}

.chat-input-field textarea {
    width: 100%;
    min-height: 48px;
    max-height: 120px;
    padding: var(--spacing-md) var(--spacing-lg);
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    color: var(--text-primary);
    font-size: 0.9375rem;
    font-family: inherit;
    resize: none;
    transition: all var(--transition-normal);
    box-shadow: var(--neu-shadow-inset-dark);
}

.chat-input-field textarea:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-cyan);
    box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1), var(--neu-shadow-inset-dark);
}

.chat-input-field textarea::placeholder {
    color: var(--text-muted);
}

.chat-input-actions {
    display: flex;
    gap: var(--spacing-sm);
}

/* ========================================
   RIGHT SIDEBAR - GROUP INFO
======================================== */
.chat-info {
    background: var(--glass-bg);
    backdrop-filter: var(--blur-lg);
    -webkit-backdrop-filter: var(--blur-lg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    border-top: 1px solid var(--glass-border-highlight);
    border-left: 1px solid var(--glass-border-highlight);
    box-shadow: var(--glass-shadow), var(--glass-inner-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
}

.chat-info::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(180deg, rgba(233, 75, 139, 0.1) 0%, transparent 100%);
    pointer-events: none;
    z-index: 0;
}

.chat-info-content {
    flex: 1;
    overflow-y: auto;
    padding: var(--spacing-lg);
    position: relative;
    z-index: 1;
}

.chat-info-content::-webkit-scrollbar {
    width: 6px;
}

.chat-info-content::-webkit-scrollbar-track {
    background: transparent;
}

.chat-info-content::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
}

/* Group Header */
.group-header {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.08);
    margin-bottom: var(--spacing-lg);
}

.group-avatar {
    margin: 0 auto var(--spacing-lg);
}

.group-name {
    font-size: 1.25rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.group-description {
    font-size: 0.875rem;
    color: var(--text-muted);
    line-height: 1.5;
}

/* Section */
.info-section {
    margin-bottom: var(--spacing-xl);
}

.info-section-title {
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-md);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

/* Members List */
.members-list {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.member-item {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

.member-item:hover {
    background: rgba(255, 255, 255, 0.06);
    border-color: rgba(255, 255, 255, 0.12);
    transform: translateX(4px);
}

.member-info {
    flex: 1;
    min-width: 0;
}

.member-name {
    font-size: 0.9375rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: 2px;
}

.member-status {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* Shared Files */
.files-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--spacing-md);
}

.file-card {
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    cursor: pointer;
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    position: relative;
    overflow: hidden;
}

.file-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 3px;
    background: linear-gradient(90deg, var(--primary-cyan) 0%, var(--primary-purple) 100%);
    opacity: 0;
    transition: opacity var(--transition-normal);
}

.file-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
}

.file-card:hover::before {
    opacity: 1;
}

.file-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.25rem;
    margin-bottom: var(--spacing-sm);
}

.file-icon.pdf {
    background: linear-gradient(135deg, #FF6B6B 0%, #FF8E53 100%);
}

.file-icon.doc {
    background: linear-gradient(135deg, #4A90E2 0%, #357ABD 100%);
}

.file-icon.img {
    background: linear-gradient(135deg, #10B981 0%, #059669 100%);
}

.file-name {
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-size {
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* ========================================
   BUTTONS
======================================== */
.btn {
    padding: var(--spacing-md) var(--spacing-lg);
    border: none;
    border-radius: var(--radius-md);
    font-size: 0.9375rem;
    font-weight: 500;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-normal);
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    text-decoration: none;
    position: relative;
    overflow: hidden;
}

.btn::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.2);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.btn:hover::before {
    width: 300px;
    height: 300px;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-purple) 100%);
    color: white;
    box-shadow: 0 4px 16px rgba(74, 144, 226, 0.4),
        var(--neu-shadow-light), var(--neu-shadow-dark);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(74, 144, 226, 0.5),
        var(--neu-shadow-light), var(--neu-shadow-dark);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    border: 1px solid rgba(255, 255, 255, 0.1);
    box-shadow: var(--neu-shadow-light), var(--neu-shadow-dark);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-icon {
    width: 40px;
    height: 40px;
    padding: 0;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--neu-shadow-light), var(--neu-shadow-dark);
}

.btn-icon:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.2);
    transform: translateY(-2px);
}

.btn-icon:active {
    transform: scale(0.95);
}

.btn-sm {
    padding: var(--spacing-sm) var(--spacing-md);
    font-size: 0.875rem;
}

.w-100 {
    width: 100%;
}

/* ========================================
   TOGGLE SWITCH (Neumorphic)
======================================== */
.toggle-switch {
    position: relative;
    width: 48px;
    height: 26px;
    background: rgba(255, 255, 255, 0.06);
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: var(--neu-shadow-inset-dark), var(--neu-shadow-inset-light);
}

.toggle-switch::before {
    content: '';
    position: absolute;
    top: 3px;
    left: 3px;
    width: 20px;
    height: 20px;
    background: linear-gradient(135deg, rgba(255, 255, 255, 0.9) 0%, rgba(255, 255, 255, 0.7) 100%);
    border-radius: 50%;
    transition: all var(--transition-normal);
    box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3),
        var(--neu-shadow-light), var(--neu-shadow-dark);
}

.toggle-switch.active {
    background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-purple) 100%);
    box-shadow: 0 0 16px rgba(0, 217, 255, 0.4);
}

.toggle-switch.active::before {
    left: 25px;
}

/* ========================================
   WELCOME SCREEN
======================================== */
.chat-welcome {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    text-align: center;
    padding: var(--spacing-2xl);
}

.welcome-icon {
    font-size: 5rem;
    margin-bottom: var(--spacing-xl);
    animation: wave 2s ease-in-out infinite;
}

@keyframes wave {

    0%,
    100% {
        transform: rotate(0deg);
    }

    10%,
    30% {
        transform: rotate(14deg);
    }

    20% {
        transform: rotate(-8deg);
    }

    40% {
        transform: rotate(0deg);
    }
}

.welcome-title {
    font-size: 2.5rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-purple) 50%, var(--primary-magenta) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-md);
}

.welcome-description {
    font-size: 1.125rem;
    color: var(--text-secondary);
    max-width: 500px;
    line-height: 1.6;
}

/* ========================================
   UTILITY CLASSES
======================================== */
.fade-in {
    animation: fadeIn 0.5s ease-out;
}

@keyframes fadeIn {
    from {
        opacity: 0;
    }

    to {
        opacity: 1;
    }
}

.text-muted {
    color: var(--text-muted);
}

.mt-lg {
    margin-top: var(--spacing-lg);
}

/* ========================================
   RESPONSIVE
======================================== */
@media (max-width: 1400px) {
    .chat-layout {
        grid-template-columns: 280px 1fr 320px;
    }
}

@media (max-width: 1200px) {
    .chat-layout {
        grid-template-columns: 260px 1fr;
    }

    .chat-info {
        display: none;
    }
}

@media (max-width: 768px) {
    .chat-layout {
        grid-template-columns: 1fr;
        padding: 0;
    }

    .chat-sidebar {
        display: none;
    }

    .chat-main {
        margin: 0;
        border-radius: 0;
    }
}

/* ========================================
   LOGIN PAGE STYLES
======================================== */
.login-page {
    min-height: 100vh;
    display: flex;
    align-items: center;
    justify-content: center;
    position: relative;
    overflow: hidden;
    padding: var(--spacing-lg);
}

.login-container {
    position: relative;
    z-index: 10;
    width: 100%;
    max-width: 450px;
}

.login-card {
    background: var(--glass-bg);
    backdrop-filter: var(--blur-lg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow), var(--neu-shadow-light), var(--neu-shadow-dark);
    padding: var(--spacing-2xl);
    position: relative;
    overflow: hidden;
}

.login-card::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 200px;
    background: linear-gradient(180deg, rgba(74, 144, 226, 0.1) 0%, transparent 100%);
    pointer-events: none;
}

.login-header {
    text-align: center;
    margin-bottom: var(--spacing-xl);
    position: relative;
    z-index: 1;
}

.login-logo {
    font-size: 4rem;
    margin-bottom: var(--spacing-md);
    animation: bounce 2s ease-in-out infinite;
}

@keyframes bounce {

    0%,
    100% {
        transform: translateY(0);
    }

    50% {
        transform: translateY(-10px);
    }
}

.login-title {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-purple) 50%, var(--primary-magenta) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.login-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
}

.login-form {
    position: relative;
    z-index: 1;
}

.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-label {
    display: block;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--text-primary);
    margin-bottom: var(--spacing-sm);
}

.form-control {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-lg);
    padding-right: 3rem;
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    color: var(--text-primary);
    font-size: 1rem;
    font-family: inherit;
    transition: all var(--transition-normal);
    box-shadow: var(--neu-shadow-inset-dark);
}

.form-control:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-cyan);
    box-shadow: 0 0 0 3px rgba(0, 217, 255, 0.1), var(--neu-shadow-inset-dark);
}

.form-control::placeholder {
    color: var(--text-muted);
}

.input-icon {
    position: absolute;
    right: var(--spacing-md);
    top: 50%;
    transform: translateY(-50%);
    font-size: 1.25rem;
    opacity: 0.5;
}

.login-options {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-lg);
}

.checkbox-wrapper {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    cursor: pointer;
    color: var(--text-secondary);
    font-size: 0.875rem;
}

.checkbox-wrapper input[type="checkbox"] {
    width: 18px;
    height: 18px;
    cursor: pointer;
}

.forgot-password {
    color: var(--primary-cyan);
    font-size: 0.875rem;
    text-decoration: none;
    transition: color var(--transition-fast);
}

.forgot-password:hover {
    color: var(--primary-purple);
}

.login-submit {
    width: 100%;
    padding: var(--spacing-md) var(--spacing-xl);
    background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-purple) 100%);
    border: none;
    border-radius: var(--radius-md);
    color: white;
    font-size: 1rem;
    font-weight: 600;
    font-family: inherit;
    cursor: pointer;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 16px rgba(74, 144, 226, 0.4),
        var(--neu-shadow-light), var(--neu-shadow-dark);
    position: relative;
    overflow: hidden;
}

.login-submit::before {
    content: '';
    position: absolute;
    top: 50%;
    left: 50%;
    width: 0;
    height: 0;
    border-radius: 50%;
    background: rgba(255, 255, 255, 0.3);
    transform: translate(-50%, -50%);
    transition: width 0.6s, height 0.6s;
}

.login-submit:hover {
    transform: translateY(-2px);
    box-shadow: 0 8px 24px rgba(74, 144, 226, 0.5),
        var(--neu-shadow-light), var(--neu-shadow-dark);
}

.login-submit:hover::before {
    width: 300px;
    height: 300px;
}

.login-submit:active {
    transform: translateY(0);
}

.login-footer {
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.08);
    text-align: center;
    color: var(--text-muted);
    font-size: 0.875rem;
}

.login-version {
    margin-top: var(--spacing-sm);
    font-size: 0.75rem;
    opacity: 0.7;
}

.alert {
    padding: var(--spacing-md) var(--spacing-lg);
    border-radius: var(--radius-md);
    margin-bottom: var(--spacing-lg);
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    animation: slideDown 0.3s ease-out;
}

@keyframes slideDown {
    from {
        opacity: 0;
        transform: translateY(-10px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.alert-error {
    background: linear-gradient(135deg, rgba(239, 68, 68, 0.15) 0%, rgba(220, 38, 38, 0.15) 100%);
    border: 1px solid rgba(239, 68, 68, 0.3);
    color: #FCA5A5;
}

.alert-success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.15) 0%, rgba(5, 150, 105, 0.15) 100%);
    border: 1px solid rgba(16, 185, 129, 0.3);
    color: #6EE7B7;
}

/* Particles for login background */
.particles {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    pointer-events: none;
    z-index: 1;
}

.particle {
    position: absolute;
    background: radial-gradient(circle, rgba(74, 144, 226, 0.3) 0%, transparent 70%);
    border-radius: 50%;
    animation: float-particle 20s infinite ease-in-out;
}

@keyframes float-particle {

    0%,
    100% {
        transform: translate(0, 0) rotate(0deg);
        opacity: 0.3;
    }

    50% {
        transform: translate(100px, -100px) rotate(180deg);
        opacity: 0.6;
    }
}

/* ========================================
   ADMIN PANEL STYLES
======================================== */
.admin-layout {
    display: grid;
    grid-template-columns: 280px 1fr;
    height: 100vh;
    gap: 0;
    position: relative;
    z-index: 1;
    padding: var(--spacing-md);
}

.admin-sidebar {
    background: var(--glass-bg);
    backdrop-filter: var(--blur-lg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow), var(--neu-shadow-light), var(--neu-shadow-dark);
    padding: var(--spacing-lg);
    overflow-y: auto;
}

.admin-main {
    background: var(--glass-bg);
    backdrop-filter: var(--blur-lg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow), var(--neu-shadow-light), var(--neu-shadow-dark);
    margin-left: var(--spacing-md);
    overflow-y: auto;
    padding: var(--spacing-xl);
}

.admin-content {
    background: var(--glass-bg);
    backdrop-filter: var(--blur-lg);
    border-radius: var(--radius-xl);
    border: 1px solid var(--glass-border);
    box-shadow: var(--glass-shadow), var(--neu-shadow-light), var(--neu-shadow-dark);
    margin-left: var(--spacing-md);
    overflow-y: auto;
    padding: var(--spacing-xl);
}

.admin-header {
    margin-bottom: var(--spacing-xl);
}

.admin-header-top {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
}

.admin-title {
    font-size: 2rem;
    font-weight: 700;
    background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-purple) 50%, var(--primary-magenta) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
    margin-bottom: var(--spacing-sm);
}

.admin-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
}

/* Stats Grid */
.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
}

.stat-card {
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: var(--blur-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    padding: var(--spacing-lg);
    text-align: center;
    transition: all var(--transition-normal);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
}

.stat-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
    background: rgba(255, 255, 255, 0.06);
}

.stat-icon {
    font-size: 2.5rem;
    margin-bottom: var(--spacing-md);
}

.stat-label {
    font-size: 0.875rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-bottom: var(--spacing-sm);
}

.stat-value {
    font-size: 2rem;
    font-weight: 700;
    color: var(--text-primary);
}

/* Card */
.card {
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: var(--blur-md);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-lg);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.2);
    overflow: hidden;
}

.card-header {
    padding: var(--spacing-lg);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    background: linear-gradient(180deg, rgba(255, 255, 255, 0.05) 0%, transparent 100%);
}

.card-title {
    font-size: 1.25rem;
    font-weight: 600;
    color: var(--text-primary);
}

.card-body {
    padding: var(--spacing-lg);
}

/* Tables */
.admin-table-container {
    overflow-x: auto;
}

.admin-table {
    width: 100%;
    border-collapse: collapse;
}

.admin-table thead tr {
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.admin-table th {
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) var(--spacing-lg);
    text-align: left;
    font-size: 0.875rem;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
}

.admin-table td {
    padding: var(--spacing-md) var(--spacing-md) var(--spacing-md) var(--spacing-lg);
    color: var(--text-primary);
    border-bottom: 1px solid rgba(255, 255, 255, 0.05);
}

.admin-table tbody tr {
    transition: all var(--transition-fast);
}

.admin-table tbody tr:hover {
    background: rgba(255, 255, 255, 0.03);
}

/* Badge */
.badge {
    padding: 0.25rem 0.75rem;
    border-radius: var(--radius-full);
    font-size: 0.75rem;
    font-weight: 500;
    display: inline-block;
}

.badge-primary {
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.2) 0%, rgba(123, 104, 238, 0.2) 100%);
    color: var(--primary-cyan);
    border: 1px solid rgba(74, 144, 226, 0.3);
}

.badge-success {
    background: linear-gradient(135deg, rgba(16, 185, 129, 0.2) 0%, rgba(5, 150, 105, 0.2) 100%);
    color: var(--accent-success);
    border: 1px solid rgba(16, 185, 129, 0.3);
}

.badge-warning {
    background: linear-gradient(135deg, rgba(245, 158, 11, 0.2) 0%, rgba(217, 119, 6, 0.2) 100%);
    color: var(--accent-warning);
    border: 1px solid rgba(245, 158, 11, 0.3);
}

/* Empty State */
.empty-state {
    text-align: center;
    padding: var(--spacing-2xl);
    color: var(--text-muted);
}

.empty-state-icon {
    font-size: 4rem;
    margin-bottom: var(--spacing-lg);
    opacity: 0.5;
}

/* Admin Sidebar Nav */
.admin-nav {
    list-style: none;
}

.admin-nav li {
    margin-bottom: var(--spacing-sm);
}

.admin-nav a {
    display: flex;
    align-items: center;
    gap: var(--spacing-md);
    padding: var(--spacing-md);
    color: var(--text-secondary);
    text-decoration: none;
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
    font-size: 0.9375rem;
}

.admin-nav a:hover {
    background: rgba(255, 255, 255, 0.06);
    color: var(--text-primary);
    transform: translateX(4px);
}

.admin-nav a.active {
    background: linear-gradient(135deg, rgba(74, 144, 226, 0.15) 0%, rgba(123, 104, 238, 0.15) 100%);
    color: var(--primary-cyan);
    border-left: 3px solid var(--primary-cyan);
}

/* Form Elements for Admin */
select.form-control,
textarea.form-control {
    appearance: none;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%23fff' opacity='0.5' d='M6 9L1 4h10z'/%3E%3C/svg%3E");
    background-repeat: no-repeat;
    background-position: right 1rem center;
    background-size: 12px;
}

/* Modal Overlay */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(8px);
    z-index: 9998;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: fadeIn 0.3s ease-out;
}

.modal {
    background: var(--glass-bg);
    backdrop-filter: var(--blur-lg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-xl);
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
    max-width: 600px;
    width: 90%;
    max-height: 90vh;
    overflow-y: auto;
    z-index: 9999;
    animation: slideUp 0.3s ease-out;
}

@keyframes slideUp {
    from {
        opacity: 0;
        transform: translateY(50px);
    }

    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.modal-header {
    padding: var(--spacing-xl);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-title {
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--text-primary);
}

.modal-close {
    width: 32px;
    height: 32px;
    border: none;
    background: rgba(255, 255, 255, 0.1);
    color: var(--text-primary);
    border-radius: 50%;
    cursor: pointer;
    transition: all var(--transition-normal);
    font-size: 1.25rem;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.2);
    transform: rotate(90deg);
}

.modal-body {
    padding: var(--spacing-xl);
}

.modal-footer {
    padding: var(--spacing-xl);
    border-top: 1px solid rgba(255, 255, 255, 0.1);
    display: flex;
    gap: var(--spacing-md);
    justify-content: flex-end;
}

/* ========================================
   EMOJI PICKER & FILE UPLOAD STYLES
======================================== */
.emoji-picker {
    position: absolute;
    bottom: 100%;
    right: 0;
    margin-bottom: 8px;
    background: var(--glass-bg);
    backdrop-filter: var(--blur-lg);
    border: 1px solid var(--glass-border);
    border-radius: var(--radius-lg);
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.4);
    padding: var(--spacing-md);
    max-width: 320px;
    max-height: 300px;
    overflow-y: auto;
    z-index: 1000;
}

.emoji-grid {
    display: grid;
    grid-template-columns: repeat(8, 1fr);
    gap: 4px;
}

.emoji-item {
    background: none;
    border: none;
    font-size: 1.5rem;
    cursor: pointer;
    padding: 4px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.emoji-item:hover {
    background: rgba(255, 255, 255, 0.1);
    transform: scale(1.2);
}

.drop-zone {
    margin: var(--spacing-md) 0;
    padding: var(--spacing-xl);
    border: 2px dashed var(--glass-border);
    border-radius: var(--radius-lg);
    text-align: center;
    background: rgba(255, 255, 255, 0.02);
    cursor: pointer;
    transition: all var(--transition-normal);
}

.drop-zone.drag-over {
    border-color: var(--primary-cyan);
    background: rgba(0, 217, 255, 0.1);
}

.drop-zone p {
    color: var(--text-muted);
    margin: 0;
}

.file-preview-container {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-sm);
    margin: var(--spacing-md) 0;
}

.file-upload-preview {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    max-width: 250px;
}

.file-upload-preview .file-icon {
    font-size: 1.5rem;
}

.file-upload-preview .file-info {
    flex: 1;
    min-width: 0;
}

.file-upload-preview .file-name {
    font-size: 0.875rem;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-upload-preview .file-size {
    font-size: 0.75rem;
    color: var(--text-muted);
}

.file-preview-remove {
    background: rgba(239, 68, 68, 0.2);
    border: none;
    color: #FCA5A5;
    width: 20px;
    height: 20px;
    border-radius: 50%;
    cursor: pointer;
    font-size: 0.875rem;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all var(--transition-fast);
}

.file-preview-remove:hover {
    background: rgba(239, 68, 68, 0.4);
}

.upload-progress-container {
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-md);
    margin: var(--spacing-md) 0;
}

.upload-progress-bar {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
    overflow: hidden;
    margin-bottom: var(--spacing-sm);
}

.upload-progress-fill {
    height: 100%;
    background: linear-gradient(90deg, var(--primary-cyan) 0%, var(--primary-purple) 100%);
    border-radius: var(--radius-full);
    transition: width 0.3s ease;
}

.upload-progress-text {
    font-size: 0.875rem;
    color: var(--text-secondary);
    text-align: center;
}

/* ========================================
   ENHANCED FORM ELEMENTS VISIBILITY
======================================== */
.form-group {
    margin-bottom: var(--spacing-lg);
}

.form-group label {
    display: block;
    margin-bottom: var(--spacing-sm);
}

/* Checkbox with visible background */
input[type="checkbox"] {
    appearance: none;
    -webkit-appearance: none;
    width: 20px;
    height: 20px;
    background: rgba(255, 255, 255, 0.1);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-sm);
    cursor: pointer;
    position: relative;
    transition: all var(--transition-normal);
    box-shadow: var(--neu-shadow-inset-dark);
}

input[type="checkbox"]:hover {
    background: rgba(255, 255, 255, 0.15);
    border-color: var(--primary-cyan);
}

input[type="checkbox"]:checked {
    background: linear-gradient(135deg, var(--primary-cyan) 0%, var(--primary-purple) 100%);
    border-color: var(--primary-cyan);
    box-shadow: 0 0 12px rgba(0, 217, 255, 0.4);
}

input[type="checkbox"]:checked::after {
    content: '✓';
    position: absolute;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: white;
    font-size: 14px;
    font-weight: bold;
}

/* Select dropdowns with better visibility */
select.form-control {
    background: rgba(255, 255, 255, 0.08) !important;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='12' viewBox='0 0 12 12'%3E%3Cpath fill='%2300D9FF' opacity='0.8' d='M6 9L1 4h10z'/%3E%3C/svg%3E") !important;
    background-repeat: no-repeat !important;
    background-position: right 1rem center !important;
    background-size: 12px !important;
    padding-right: 3rem !important;
}

/* Input number controls visible */
input[type="number"]::-webkit-inner-spin-button,
input[type="number"]::-webkit-outer-spin-button {
    opacity: 1;
}

/* Code blocks with better contrast */
code {
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(0, 217, 255, 0.3);
    padding: var(--spacing-sm) var(--spacing-md);
    border-radius: var(--radius-sm);
    color: var(--primary-cyan);
    font-family: 'Courier New', monospace;
    font-size: 0.875rem;
}

/* Small text with better readability */
small.text-muted {
    display: block;
    margin-top: var(--spacing-xs);
    color: rgba(255, 255, 255, 0.6);
    font-size: 0.875rem;
}

/* Label containers for checkboxes */
label[style*="display: flex"] {
    padding: var(--spacing-md);
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-md);
    transition: all var(--transition-normal);
}

label[style*="display: flex"]:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(0, 217, 255, 0.3);
}

/* Utility class for spacing */
.mt-lg {
    margin-top: var(--spacing-xl);
}

/* Better button visibility */
.btn-lg {
    padding: var(--spacing-lg) var(--spacing-2xl);
    font-size: 1.125rem;
}

/* ========================================
   FILE CARDS IN RIGHT PANEL - COMPACT & PROFESSIONAL
======================================== */
.files-grid {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-xs);
    max-height: 400px;
    overflow-y: auto;
    padding-right: var(--spacing-xs);
}

.files-grid::-webkit-scrollbar {
    width: 4px;
}

.files-grid::-webkit-scrollbar-track {
    background: transparent;
}

.files-grid::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: var(--radius-full);
}

.file-card {
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    padding: var(--spacing-sm) var(--spacing-md);
    background: rgba(255, 255, 255, 0.04);
    backdrop-filter: var(--blur-md);
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    cursor: pointer;
}

.file-card:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: var(--primary-cyan);
    transform: translateX(2px);
    box-shadow: 0 2px 8px rgba(0, 217, 255, 0.15);
}

.file-card .file-icon {
    font-size: 1.25rem;
    flex-shrink: 0;
    width: 28px;
    height: 28px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(255, 255, 255, 0.05);
    border-radius: var(--radius-sm);
}

.file-card .file-name {
    flex: 1;
    font-size: 0.8125rem;
    font-weight: 500;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    min-width: 0;
    line-height: 1.3;
}

.file-card .file-size {
    font-size: 0.6875rem;
    color: var(--text-muted);
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.03);
    padding: 2px 6px;
    border-radius: var(--radius-sm);
}

/* File type specific icons with subtle colors */
.file-icon.pdf {
    color: #EF4444;
    background: rgba(239, 68, 68, 0.1) !important;
}

.file-icon.doc,
.file-icon.docx {
    color: #3B82F6;
    background: rgba(59, 130, 246, 0.1) !important;
}

.file-icon.xls,
.file-icon.xlsx {
    color: #10B981;
    background: rgba(16, 185, 129, 0.1) !important;
}

.file-icon.ppt,
.file-icon.pptx {
    color: #F59E0B;
    background: rgba(245, 158, 11, 0.1) !important;
}

.file-icon.zip,
.file-icon.rar {
    color: #8B5CF6;
    background: rgba(139, 92, 246, 0.1) !important;
}

.file-icon.jpg,
.file-icon.jpeg,
.file-icon.png,
.file-icon.gif,
.file-icon.webp {
    color: #EC4899;
    background: rgba(236, 72, 153, 0.1) !important;
}

.file-icon.mp4,
.file-icon.mov,
.file-icon.avi {
    color: #14B8A6;
    background: rgba(20, 184, 166, 0.1) !important;
}

/* Empty state for no files */
.files-grid-empty {
    text-align: center;
    padding: var(--spacing-xl) var(--spacing-md);
    color: var(--text-muted);
}

.files-grid-empty p {
    margin: 0;
}

.files-grid-empty p:first-child {
    font-size: 2rem;
    margin-bottom: var(--spacing-sm);
    opacity: 0.3;
}

.files-grid-empty p:last-child {
    font-size: 0.8125rem;
}