/**
 * Quick Simon Solutions Ltd - Advanced Chatbot Styles
 * Enterprise-grade chatbot UI matching brand design
 */

/* ============================================
   CSS VARIABLES (Brand Aligned)
   ============================================ */
:root {
    --qss-primary: #0056B3;
    --qss-primary-dark: #003d80;
    --qss-secondary: #FFC107;
    --qss-dark: #212529;
    --qss-light: #F8F9FA;
    --qss-white: #FFFFFF;
    --qss-success: #28a745;
    --qss-danger: #dc3545;
    --qss-gray: #6c757d;
    --qss-shadow: 0 10px 40px rgba(0,0,0,0.15);
    --qss-shadow-sm: 0 4px 15px rgba(0,0,0,0.1);
    --qss-radius: 16px;
    --qss-radius-sm: 12px;
    --qss-transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
}

/* ============================================
   CHATBOT CONTAINER
   ============================================ */
.qss-chatbot {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
}

/* ============================================
   CHAT TOGGLE BUTTON
   ============================================ */
.qss-chat-toggle {
    width: 60px;
    height: 60px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--qss-primary) 0%, var(--qss-primary-dark) 100%);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: var(--qss-shadow);
    transition: var(--qss-transition);
    position: relative;
    color: white;
}

.qss-chat-toggle:hover {
    transform: scale(1.1);
    box-shadow: 0 15px 50px rgba(0,86,179,0.4);
}

.qss-chat-toggle:active {
    transform: scale(0.95);
}

.qss-chat-icon,
.qss-chat-close {
    position: absolute;
    transition: var(--qss-transition);
}

.qss-chat-close {
    opacity: 0;
    transform: rotate(-90deg) scale(0.5);
}

.qss-chatbot.open .qss-chat-icon {
    opacity: 0;
    transform: rotate(90deg) scale(0.5);
}

.qss-chatbot.open .qss-chat-close {
    opacity: 1;
    transform: rotate(0) scale(1);
}

/* Badge */
.qss-chat-badge {
    position: absolute;
    top: -5px;
    right: -5px;
    width: 22px;
    height: 22px;
    background: var(--qss-danger);
    color: white;
    border-radius: 50%;
    font-size: 12px;
    font-weight: 700;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: qss-pulse 2s infinite;
}

@keyframes qss-pulse {
    0%, 100% { transform: scale(1); }
    50% { transform: scale(1.1); }
}

/* ============================================
   CHAT WINDOW
   ============================================ */
.qss-chat-window {
    position: absolute;
    bottom: 80px;
    right: 0;
    width: 380px;
    max-width: calc(100vw - 40px);
    height: 580px;
    max-height: calc(100vh - 120px);
    background: var(--qss-white);
    border-radius: var(--qss-radius);
    box-shadow: var(--qss-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.95);
    transition: var(--qss-transition);
}

.qss-chatbot.open .qss-chat-window {
    opacity: 1;
    visibility: visible;
    transform: translateY(0) scale(1);
}

/* ============================================
   CHAT HEADER
   ============================================ */
.qss-chat-header {
    background: linear-gradient(135deg, var(--qss-primary) 0%, var(--qss-primary-dark) 100%);
    color: white;
    padding: 16px 20px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-shrink: 0;
}

.qss-chat-header-info {
    display: flex;
    align-items: center;
    gap: 12px;
}

.qss-chat-avatar {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: white;
    display: flex;
    align-items: center;
    justify-content: center;
    overflow: hidden;
    flex-shrink: 0;
}

.qss-chat-avatar img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.qss-chat-header-text h4 {
    margin: 0;
    font-size: 1rem;
    font-weight: 600;
}

.qss-chat-status {
    font-size: 0.8rem;
    opacity: 0.9;
    display: flex;
    align-items: center;
    gap: 6px;
}

.qss-status-dot {
    width: 8px;
    height: 8px;
    background: #4ade80;
    border-radius: 50%;
    animation: qss-pulse 2s infinite;
}

.qss-chat-minimize {
    background: rgba(255,255,255,0.2);
    border: none;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--qss-transition);
}

.qss-chat-minimize:hover {
    background: rgba(255,255,255,0.3);
}

/* ============================================
   MESSAGES CONTAINER
   ============================================ */
.qss-chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    background: var(--qss-light);
}

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

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

.qss-chat-messages::-webkit-scrollbar-thumb {
    background: #cbd5e1;
    border-radius: 3px;
}

/* ============================================
   MESSAGE BUBBLES
   ============================================ */
.qss-message {
    display: flex;
    animation: qss-fadeIn 0.3s ease;
}

@keyframes qss-fadeIn {
    from {
        opacity: 0;
        transform: translateY(10px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.qss-message-content {
    max-width: 85%;
    padding: 12px 16px;
    border-radius: var(--qss-radius-sm);
    line-height: 1.5;
    font-size: 0.9rem;
    white-space: pre-wrap;
}

/* Bot Messages */
.qss-bot-message {
    justify-content: flex-start;
}

.qss-bot-message .qss-message-content {
    background: var(--qss-white);
    color: var(--qss-dark);
    border-bottom-left-radius: 4px;
    box-shadow: var(--qss-shadow-sm);
}

/* User Messages */
.qss-user-message {
    justify-content: flex-end;
}

.qss-user-message .qss-message-content {
    background: linear-gradient(135deg, var(--qss-primary) 0%, var(--qss-primary-dark) 100%);
    color: white;
    border-bottom-right-radius: 4px;
}

/* Message Content Styling */
.qss-message-content strong {
    font-weight: 600;
}

.qss-message-content a {
    color: var(--qss-primary);
    text-decoration: underline;
}

.qss-user-message .qss-message-content a {
    color: var(--qss-secondary);
}

.qss-message-content em {
    opacity: 0.8;
    font-style: italic;
}

/* ============================================
   TYPING INDICATOR
   ============================================ */
.qss-typing .qss-message-content {
    padding: 16px 20px;
}

.qss-typing-indicator {
    display: flex;
    gap: 4px;
}

.qss-typing-indicator span {
    width: 8px;
    height: 8px;
    background: var(--qss-gray);
    border-radius: 50%;
    animation: qss-typing 1.4s infinite ease-in-out;
}

.qss-typing-indicator span:nth-child(2) {
    animation-delay: 0.2s;
}

.qss-typing-indicator span:nth-child(3) {
    animation-delay: 0.4s;
}

@keyframes qss-typing {
    0%, 60%, 100% {
        transform: translateY(0);
        opacity: 0.4;
    }
    30% {
        transform: translateY(-8px);
        opacity: 1;
    }
}

/* ============================================
   SPECIAL MESSAGE ELEMENTS
   ============================================ */
.qss-safety-steps {
    background: rgba(220, 53, 69, 0.1);
    border-left: 3px solid var(--qss-danger);
    padding: 12px;
    margin: 10px 0;
    border-radius: 0 8px 8px 0;
}

.qss-phone-link {
    color: var(--qss-danger) !important;
    font-weight: 700;
    font-size: 1.1em;
}

.qss-ticket-summary {
    background: var(--qss-light);
    padding: 15px;
    border-radius: 8px;
    margin: 10px 0;
    font-size: 0.85rem;
}

.qss-trust-badges {
    background: rgba(40, 167, 69, 0.1);
    border-left: 3px solid var(--qss-success);
    padding: 12px;
    margin: 10px 0;
    border-radius: 0 8px 8px 0;
    font-size: 0.85rem;
}

.qss-sending {
    text-align: center;
    color: var(--qss-gray);
    font-style: italic;
}

/* ============================================
   QUICK ACTIONS
   ============================================ */
.qss-quick-actions {
    display: none;
    flex-wrap: wrap;
    gap: 8px;
    padding: 12px 20px;
    background: var(--qss-white);
    border-top: 1px solid #e5e7eb;
}

.qss-action-btn {
    padding: 10px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 20px;
    background: var(--qss-white);
    color: var(--qss-dark);
    font-size: 0.85rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--qss-transition);
    white-space: nowrap;
}

.qss-action-btn:hover {
    border-color: var(--qss-primary);
    color: var(--qss-primary);
    transform: translateY(-2px);
}

.qss-action-btn.primary {
    background: var(--qss-primary);
    border-color: var(--qss-primary);
    color: white;
}

.qss-action-btn.primary:hover {
    background: var(--qss-primary-dark);
    border-color: var(--qss-primary-dark);
    color: white;
}

.qss-action-btn.secondary {
    background: var(--qss-light);
    border-color: var(--qss-light);
}

.qss-action-btn.secondary:hover {
    background: var(--qss-white);
    border-color: var(--qss-primary);
}

.qss-action-btn.emergency {
    background: var(--qss-danger);
    border-color: var(--qss-danger);
    color: white;
    animation: qss-pulse 2s infinite;
}

.qss-action-btn.emergency:hover {
    background: #c82333;
    border-color: #c82333;
}

/* ============================================
   INPUT AREA
   ============================================ */
.qss-chat-input-area {
    padding: 16px 20px;
    background: var(--qss-white);
    border-top: 1px solid #e5e7eb;
    flex-shrink: 0;
}

.qss-chat-form {
    display: flex;
    gap: 10px;
}

.qss-chat-input {
    flex: 1;
    padding: 12px 16px;
    border: 2px solid #e5e7eb;
    border-radius: 24px;
    font-size: 0.9rem;
    font-family: inherit;
    outline: none;
    transition: var(--qss-transition);
}

.qss-chat-input:focus {
    border-color: var(--qss-primary);
}

.qss-chat-input::placeholder {
    color: #9ca3af;
}

.qss-chat-send {
    width: 44px;
    height: 44px;
    border-radius: 50%;
    background: var(--qss-primary);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: white;
    transition: var(--qss-transition);
    flex-shrink: 0;
}

.qss-chat-send:hover {
    background: var(--qss-primary-dark);
    transform: scale(1.05);
}

.qss-chat-send:active {
    transform: scale(0.95);
}

/* Footer */
.qss-chat-footer {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    margin-top: 10px;
    font-size: 0.75rem;
    color: var(--qss-gray);
}

.qss-chat-footer a {
    color: var(--qss-primary);
    text-decoration: none;
    font-weight: 500;
}

.qss-chat-footer a:hover {
    text-decoration: underline;
}

/* ============================================
   INLINE BUTTONS (in messages)
   ============================================ */
.qss-inline-btn {
    display: inline-block;
    padding: 6px 12px;
    margin: 4px 4px 4px 0;
    border: 1px solid var(--qss-primary);
    border-radius: 16px;
    background: transparent;
    color: var(--qss-primary);
    font-size: 0.8rem;
    cursor: pointer;
    transition: var(--qss-transition);
}

.qss-inline-btn:hover {
    background: var(--qss-primary);
    color: white;
}

/* ============================================
   MOBILE RESPONSIVE
   ============================================ */
@media (max-width: 480px) {
    .qss-chatbot {
        bottom: 10px;
        right: 10px;
    }

    .qss-chat-window {
        width: calc(100vw - 20px);
        height: calc(100vh - 100px);
        max-height: calc(100vh - 100px);
        bottom: 70px;
        right: -10px;
        border-radius: var(--qss-radius-sm);
    }

    .qss-chat-toggle {
        width: 54px;
        height: 54px;
    }

    .qss-chat-header {
        padding: 14px 16px;
    }

    .qss-chat-avatar {
        width: 38px;
        height: 38px;
    }

    .qss-chat-header-text h4 {
        font-size: 0.9rem;
    }

    .qss-chat-messages {
        padding: 16px;
    }

    .qss-message-content {
        max-width: 90%;
        padding: 10px 14px;
        font-size: 0.85rem;
    }

    .qss-quick-actions {
        padding: 10px 16px;
    }

    .qss-action-btn {
        padding: 8px 14px;
        font-size: 0.8rem;
    }

    .qss-chat-input-area {
        padding: 12px 16px;
    }

    .qss-chat-input {
        padding: 10px 14px;
        font-size: 0.85rem;
    }

    .qss-chat-send {
        width: 40px;
        height: 40px;
    }
}

/* ============================================
   ACCESSIBILITY
   ============================================ */
@media (prefers-reduced-motion: reduce) {
    .qss-chat-toggle,
    .qss-chat-window,
    .qss-message,
    .qss-action-btn,
    .qss-chat-send,
    .qss-chat-badge {
        animation: none;
        transition: none;
    }
}

/* Focus states for keyboard navigation */
.qss-chat-toggle:focus,
.qss-chat-minimize:focus,
.qss-action-btn:focus,
.qss-chat-send:focus,
.qss-chat-input:focus {
    outline: 2px solid var(--qss-secondary);
    outline-offset: 2px;
}

/* High contrast mode support */
@media (prefers-contrast: high) {
    .qss-message-content {
        border: 1px solid currentColor;
    }
    
    .qss-action-btn {
        border-width: 2px;
    }
}