/*
================================================================================
| ROOBUX - Binance-Inspired Support Chat Styles v5.0
================================================================================
| Premium dark theme with glassmorphism and smooth animations
| Optimized for performance and pixel-perfect design
================================================================================
*/

:root {
    --chat-bg-primary: #0d1117;
    --chat-bg-secondary: #161b22;
    --chat-bg-card: #21262d;
    --chat-border: rgba(255, 255, 255, 0.08);
    --chat-text-primary: #e6edf3;
    --chat-text-secondary: #8b949e;
    --chat-accent-blue: #0099ff;
    --chat-accent-cyan: #00E0FF;
    --chat-success: #3fb950;
    --chat-warning: #f0883e;
    --chat-danger: #f85149;
    --chat-shadow: rgba(0, 0, 0, 0.3);
}

/* ===== 1. CHAT CONTAINER ===== */
.chat-container {
    flex: 1;
    display: flex;
    flex-direction: column;
    height: calc(100vh - 80px);
    max-width: 1000px;
    width: 100%;
    margin: 0 auto;
    background: linear-gradient(180deg, var(--chat-bg-primary) 0%, #0a0e13 100%);
    border-left: 1px solid var(--chat-border);
    border-right: 1px solid var(--chat-border);
    position: relative;
    overflow: hidden;
    box-shadow: 0 0 50px rgba(0, 0, 0, 0.5);
}

/* ===== 2. CHAT HEADER ===== */
.chat-header {
    padding: 20px 28px;
    border-bottom: 1px solid var(--chat-border);
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: rgba(22, 27, 34, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    z-index: 100;
    box-shadow: 0 4px 30px var(--chat-shadow);
    flex-shrink: 0;
    gap: 16px;
}

.chat-header-left {
    display: flex;
    align-items: center;
    gap: 16px;
    flex: 1;
    min-width: 0;
}

.chat-header-avatar-wrapper {
    position: relative;
    flex-shrink: 0;
}

.chat-header-avatar {
    width: 52px;
    height: 52px;
    border-radius: 50%;
    object-fit: cover;
    border: 2.5px solid var(--chat-accent-cyan);
    padding: 3px;
    background: linear-gradient(135deg, var(--chat-bg-primary), var(--chat-bg-secondary));
    box-shadow: 
        0 0 20px rgba(0, 224, 255, 0.4),
        0 0 40px rgba(0, 224, 255, 0.2),
        inset 0 0 10px rgba(0, 0, 0, 0.5);
    animation: avatarGlow 3s ease-in-out infinite;
}

@keyframes avatarGlow {
    0%, 100% { box-shadow: 0 0 20px rgba(0, 224, 255, 0.4), 0 0 40px rgba(0, 224, 255, 0.2), inset 0 0 10px rgba(0, 0, 0, 0.5); }
    50% { box-shadow: 0 0 30px rgba(0, 224, 255, 0.6), 0 0 60px rgba(0, 224, 255, 0.3), inset 0 0 10px rgba(0, 0, 0, 0.5); }
}

.avatar-status-dot {
    position: absolute;
    bottom: 2px;
    right: 2px;
    width: 14px;
    height: 14px;
    background: var(--chat-success);
    border-radius: 50%;
    border: 3px solid var(--chat-bg-secondary);
    box-shadow: 0 0 12px var(--chat-success);
    animation: pulse 2s infinite;
}

.chat-header-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
    min-width: 0;
}

.chat-header-info h4 {
    margin: 0;
    color: var(--chat-text-primary);
    font-weight: 700;
    font-size: 1.2rem;
    letter-spacing: 0.5px;
    text-shadow: 0 2px 4px var(--chat-shadow);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.chat-header-status {
    font-size: 0.85rem;
    color: var(--chat-success);
    display: flex;
    align-items: center;
    gap: 6px;
    font-weight: 500;
}

.status-dot {
    width: 8px;
    height: 8px;
    background: var(--chat-success);
    border-radius: 50%;
    display: inline-block;
    box-shadow: 0 0 10px var(--chat-success), 0 0 20px rgba(63, 185, 80, 0.5);
    animation: pulse 2s infinite;
}

@keyframes pulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(0.95); }
}

.chat-header-actions {
    display: flex;
    gap: 12px;
    flex-shrink: 0;
}

/* End Chat Button */
.btn-end-chat {
    background: rgba(248, 81, 73, 0.08);
    color: var(--chat-danger);
    border: 1.5px solid rgba(248, 81, 73, 0.3);
    padding: 10px 20px;
    font-size: 0.9rem;
    border-radius: 24px;
    font-weight: 600;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    text-transform: uppercase;
    letter-spacing: 0.8px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    gap: 6px;
    white-space: nowrap;
}

.btn-end-chat:hover:not(:disabled) {
    background: rgba(248, 81, 73, 0.15);
    border-color: var(--chat-danger);
    box-shadow: 0 0 25px rgba(248, 81, 73, 0.3);
    transform: translateY(-2px);
}

.btn-end-chat:active:not(:disabled) {
    transform: translateY(0);
}

.btn-end-chat:disabled {
    opacity: 0.5;
    cursor: not-allowed;
    transform: none;
}

.btn-icon {
    font-size: 1.1em;
}

/* ===== 3. CHAT MESSAGES AREA ===== */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    padding: 28px;
    display: flex;
    flex-direction: column;
    gap: 18px;
    scroll-behavior: smooth;
    background-image: 
        radial-gradient(circle at 15% 25%, rgba(0, 153, 255, 0.04) 0%, transparent 50%),
        radial-gradient(circle at 85% 75%, rgba(0, 224, 255, 0.04) 0%, transparent 50%);
    position: relative;
}

/* Custom Scrollbar */
.chat-messages::-webkit-scrollbar {
    width: 10px;
}

.chat-messages::-webkit-scrollbar-track {
    background: rgba(13, 17, 23, 0.6);
    border-radius: 5px;
    margin: 8px 0;
}

.chat-messages::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.12);
    border-radius: 5px;
    border: 2px solid rgba(13, 17, 23, 0.6);
    transition: background 0.3s;
}

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

/* ===== 4. MESSAGE BUBBLES ===== */
.chat-message {
    display: flex;
    flex-direction: column;
    max-width: 78%;
    animation: fadeSlideUp 0.4s cubic-bezier(0.25, 0.46, 0.45, 0.94);
    will-change: opacity, transform;
}

@keyframes fadeSlideUp {
    from { 
        opacity: 0; 
        transform: translateY(20px) scale(0.97);
    }
    to { 
        opacity: 1; 
        transform: translateY(0) scale(1);
    }
}

.message-content {
    padding: 15px 20px;
    border-radius: 20px;
    color: var(--chat-text-primary);
    font-size: 0.96rem;
    line-height: 1.6;
    position: relative;
    word-wrap: break-word;
    overflow-wrap: break-word;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
    transition: transform 0.2s, box-shadow 0.2s;
}

.message-content:hover {
    transform: translateY(-1px);
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.4);
}

.message-content strong {
    color: #ffffff;
    font-weight: 700;
}

.message-timestamp {
    font-size: 0.72rem;
    color: #6e7681;
    margin-top: 6px;
    padding: 0 8px;
    font-weight: 500;
    letter-spacing: 0.3px;
}

/* Admin / Bot Messages (Left) */
.message-admin, .message-system {
    align-self: flex-start;
}

.message-admin .message-content, 
.message-system .message-content {
    background: linear-gradient(135deg, rgba(33, 38, 45, 0.98), rgba(22, 27, 34, 0.98));
    border: 1px solid rgba(255, 255, 255, 0.1);
    border-bottom-left-radius: 6px;
    backdrop-filter: blur(10px);
    -webkit-backdrop-filter: blur(10px);
}

.message-admin .message-timestamp,
.message-system .message-timestamp {
    text-align: left;
}

/* User Messages (Right) */
.message-user {
    align-self: flex-end;
}

.message-user .message-content {
    background: linear-gradient(135deg, #0099ff 0%, #0077cc 100%);
    color: #ffffff;
    border: none;
    border-bottom-right-radius: 6px;
    box-shadow: 
        0 4px 20px rgba(0, 153, 255, 0.4), 
        0 2px 8px rgba(0, 153, 255, 0.3);
}

.message-user .message-content:hover {
    box-shadow: 
        0 6px 24px rgba(0, 153, 255, 0.5), 
        0 3px 10px rgba(0, 153, 255, 0.4);
}

.message-user .message-timestamp {
    text-align: right;
    color: #7db9e8;
}

/* ===== 5. TYPING INDICATOR ===== */
.typing-indicator {
    padding: 15px 20px;
    background: linear-gradient(135deg, rgba(33, 38, 45, 0.98), rgba(22, 27, 34, 0.98));
    border-radius: 20px;
    border-bottom-left-radius: 6px;
    width: fit-content;
    display: flex;
    gap: 5px;
    align-items: center;
    border: 1px solid rgba(255, 255, 255, 0.1);
    animation: fadeIn 0.3s;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
    backdrop-filter: blur(10px);
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.typing-dot {
    width: 8px;
    height: 8px;
    background: #6e7681;
    border-radius: 50%;
    animation: typingBounce 1.4s infinite ease-in-out;
}

.typing-dot:nth-child(1) { animation-delay: -0.32s; }
.typing-dot:nth-child(2) { animation-delay: -0.16s; }

@keyframes typingBounce {
    0%, 60%, 100% { 
        transform: translateY(0);
        opacity: 0.7;
    }
    30% { 
        transform: translateY(-10px);
        opacity: 1;
    }
}

/* ===== 6. QUICK ACTION BUTTONS ===== */
.quick-start-buttons,
.category-buttons {
    display: flex;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 14px;
}

.quick-btn,
.category-btn {
    background: rgba(56, 139, 253, 0.1);
    color: #58a6ff;
    border: 1.5px solid rgba(56, 139, 253, 0.3);
    font-size: 0.875rem;
    padding: 10px 18px;
    border-radius: 22px;
    font-weight: 600;
    transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    cursor: pointer;
    white-space: nowrap;
    display: inline-flex;
    align-items: center;
    gap: 6px;
}

.quick-btn:hover,
.category-btn:hover {
    background: rgba(56, 139, 253, 0.18);
    border-color: #58a6ff;
    transform: translateY(-2px);
    box-shadow: 0 4px 14px rgba(56, 139, 253, 0.25);
}

.quick-btn:active,
.category-btn:active {
    transform: translateY(0);
}

.category-btn {
    background: rgba(163, 113, 247, 0.1);
    color: #bc8cff;
    border-color: rgba(163, 113, 247, 0.3);
    flex: 1 1 calc(50% - 10px);
    min-width: 160px;
    justify-content: center;
}

.category-btn:hover {
    background: rgba(163, 113, 247, 0.18);
    border-color: #bc8cff;
    box-shadow: 0 4px 14px rgba(163, 113, 247, 0.25);
}

/* ===== 7. CHAT INPUT AREA ===== */
.chat-input-area {
    padding: 16px 20px 20px;
    background: rgba(22, 27, 34, 0.98);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border-top: 1px solid var(--chat-border);
    flex-shrink: 0;
    box-shadow: 0 -4px 30px var(--chat-shadow);
}

.chat-input-form {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    background: var(--chat-bg-primary);
    padding: 8px 8px 8px 18px;
    border-radius: 28px;
    border: 1.5px solid rgba(255, 255, 255, 0.1);
    transition: all 0.3s ease;
    box-shadow: inset 0 2px 6px rgba(0, 0, 0, 0.4);
}

.chat-input-form:focus-within {
    border-color: var(--chat-accent-blue);
    box-shadow: 
        0 0 0 3px rgba(0, 153, 255, 0.15), 
        inset 0 2px 6px rgba(0, 0, 0, 0.4);
}

.chat-input-form .form-control {
    flex: 1;
    background: transparent;
    border: none;
    color: #ffffff;
    padding: 10px 12px;
    font-size: 0.95rem;
    resize: none;
    max-height: 120px;
    min-height: 22px;
    line-height: 1.5;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
    -webkit-appearance: none;
    appearance: none;
    /* Mobile optimizations */
    -webkit-tap-highlight-color: transparent;
    -webkit-touch-callout: none;
}

/* Custom textarea scrollbar */
.chat-input-form .form-control::-webkit-scrollbar {
    width: 6px;
}

.chat-input-form .form-control::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
    border-radius: 3px;
}

.chat-input-form .form-control::-webkit-scrollbar-thumb {
    background: rgba(0, 153, 255, 0.4);
    border-radius: 3px;
    transition: background 0.3s;
}

.chat-input-form .form-control::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 153, 255, 0.6);
}

.chat-input-form .form-control::placeholder {
    color: #6e7681;
    opacity: 1;
}

.chat-input-form .form-control:focus {
    outline: none;
}

/* Send Button */
.btn-send {
    width: 44px;
    height: 44px;
    min-width: 44px;
    border-radius: 50%;
    background: linear-gradient(135deg, #0099ff, #0077cc);
    color: white;
    border: none;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    flex-shrink: 0;
    cursor: pointer;
    font-size: 1.3rem;
    box-shadow: 0 4px 16px rgba(0, 153, 255, 0.35);
    -webkit-tap-highlight-color: transparent;
}

.btn-send:hover:not(:disabled) {
    background: linear-gradient(135deg, #33adff, #0099ff);
    transform: scale(1.08);
    box-shadow: 0 6px 24px rgba(0, 153, 255, 0.5);
}

.btn-send:active:not(:disabled) {
    transform: scale(0.95);
}

.btn-send:disabled {
    background: linear-gradient(135deg, #21262d, #161b22);
    color: #6e7681;
    cursor: not-allowed;
    transform: none;
    box-shadow: none;
    opacity: 0.6;
}

/* Input Helper Text */
.input-helper-text {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
    padding: 0 6px;
    font-size: 0.72rem;
    color: var(--chat-text-secondary);
}

.char-count {
    font-weight: 600;
    font-family: 'Courier New', monospace;
    font-size: 0.7rem;
}

.input-hint {
    opacity: 0.7;
    font-size: 0.7rem;
}

/* ===== 8. MOBILE RESPONSIVENESS ===== */
@media (max-width: 768px) {
    .chat-container {
        height: calc(100vh - 60px);
        border-left: none;
        border-right: none;
    }
    
    .chat-header {
        padding: 14px 16px;
        flex-wrap: wrap;
    }
    
    .chat-header-avatar {
        width: 44px;
        height: 44px;
    }
    
    .avatar-status-dot {
        width: 12px;
        height: 12px;
        border-width: 2px;
    }
    
    .chat-header-info h4 {
        font-size: 1rem;
    }
    
    .chat-header-status {
        font-size: 0.78rem;
    }
    
    .btn-end-chat {
        padding: 7px 12px;
        font-size: 0.75rem;
        letter-spacing: 0.5px;
    }
    
    .btn-end-chat .btn-icon {
        font-size: 0.95em;
    }
    
    .chat-messages {
        padding: 16px;
        gap: 14px;
    }
    
    .chat-message {
        max-width: 88%;
    }
    
    .message-content {
        padding: 12px 16px;
        font-size: 0.9rem;
        border-radius: 18px;
    }
    
    .message-timestamp {
        font-size: 0.68rem;
        margin-top: 5px;
        padding: 0 6px;
    }
    
    .chat-input-area {
        padding: 12px 14px 16px;
    }
    
    .chat-input-form {
        padding: 6px 6px 6px 14px;
        border-radius: 24px;
        gap: 8px;
    }
    
    .chat-input-form .form-control {
        font-size: 0.9rem;
        padding: 9px 10px;
        min-height: 20px;
        line-height: 1.4;
    }
    
    .btn-send {
        width: 40px;
        height: 40px;
        min-width: 40px;
        font-size: 1.2rem;
    }
    
    .quick-btn,
    .category-btn {
        font-size: 0.8rem;
        padding: 9px 14px;
        border-radius: 18px;
    }
    
    .category-btn {
        flex: 1 1 100%;
        min-width: 140px;
    }
    
    .input-helper-text {
        flex-direction: column;
        gap: 5px;
        align-items: flex-start;
        margin-top: 6px;
        padding: 0 4px;
    }
    
    .char-count,
    .input-hint {
        font-size: 0.68rem;
    }
    
    .typing-indicator {
        padding: 12px 16px;
    }
    
    .typing-dot {
        width: 7px;
        height: 7px;
    }
}

@media (max-width: 480px) {
    .dashboard-header .welcome-message h1 {
        font-size: 1.1rem;
    }
    
    .header-subtitle {
        font-size: 0.75rem;
    }
    
    .chat-header {
        padding: 12px 14px;
    }
    
    .chat-header-avatar {
        width: 40px;
        height: 40px;
    }
    
    .chat-header-info h4 {
        font-size: 0.92rem;
    }
    
    .chat-header-status {
        font-size: 0.72rem;
    }
    
    .status-dot {
        width: 7px;
        height: 7px;
    }
    
    .btn-end-chat {
        padding: 6px 10px;
        font-size: 0.7rem;
    }
    
    .chat-messages {
        padding: 14px;
        gap: 12px;
    }
    
    .message-content {
        font-size: 0.875rem;
        padding: 11px 14px;
        border-radius: 16px;
    }
    
    .chat-input-form {
        padding: 5px 5px 5px 12px;
    }
    
    .chat-input-form .form-control {
        font-size: 0.875rem;
        padding: 8px 10px;
    }
    
    .btn-send {
        width: 38px;
        height: 38px;
        min-width: 38px;
        font-size: 1.1rem;
    }
    
    .quick-btn,
    .category-btn {
        font-size: 0.75rem;
        padding: 8px 12px;
    }
}

/* Landscape mode optimization */
@media (max-width: 768px) and (orientation: landscape) {
    .chat-container {
        height: 100vh;
    }
    
    .chat-header {
        padding: 10px 14px;
    }
    
    .chat-messages {
        padding: 12px;
    }
    
    .chat-input-area {
        padding: 10px 12px;
    }
}

/* ===== 9. UTILITIES ===== */
.support-timer {
    display: inline-block;
    background: rgba(63, 185, 80, 0.12);
    color: var(--chat-success);
    padding: 6px 14px;
    border-radius: 8px;
    font-family: 'Courier New', monospace;
    font-weight: 700;
    margin-top: 10px;
    border: 1.5px solid rgba(63, 185, 80, 0.3);
    font-size: 0.9rem;
    letter-spacing: 0.5px;
}

/* Dark mode enhancements */
@media (prefers-color-scheme: dark) {
    .chat-container {
        color-scheme: dark;
    }
}