/* ==========================================================================
   Smart AI Chatbot — Public Chat Widget
   All colours/sizes driven by CSS custom properties set inline from PHP.

   IMPORTANT: Uses !important on layout-critical properties to prevent
   theme CSS from breaking the widget. This is intentional — without it,
   many themes override z-index, opacity, pointer-events, and display
   on global selectors like `div`, `button`, `form`, and `input`.
   ========================================================================== */

/* ---------- Root reset — isolate from theme styles ---------- */
.scb-root,
.scb-root *,
.scb-root *::before,
.scb-root *::after {
    box-sizing: border-box !important;
    margin: 0;
    padding: 0;
    float: none !important;
    letter-spacing: normal;
    text-transform: none;
    text-indent: 0;
    text-decoration: none;
    list-style: none;
    -webkit-font-smoothing: antialiased;
}

/* ---------- Custom-property fallbacks ---------- */
.scb-root {
    --scb-primary:     #6c63ff;
    --scb-header-text: #ffffff;
    --scb-bg:          #ffffff;
    --scb-user:        #6c63ff;
    --scb-bot:         #f0f0f5;
    --scb-font:        inherit;
    --scb-size:        14px;
    --scb-radius:      14px;
    --scb-shadow:      0 8px 30px rgba(0,0,0,.12);

    font-family: var(--scb-font) !important;
    font-size: var(--scb-size) !important;
    line-height: 1.5 !important;
    z-index: 999999 !important;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    transform: none !important;
    contain: none !important;
    will-change: auto !important;
    display: block !important;
    color: #333;
    max-width: none !important;
    filter: none !important;
    perspective: none !important;
    isolation: auto !important;
}

/* ==========================================================================
   Floating mode positioning
   ========================================================================== */

.scb-root--floating {
    position: fixed !important;
    bottom: 24px !important;
    z-index: 999999 !important;
    overflow: visible !important;
    width: auto !important;
    max-width: none !important;
    min-width: 0 !important;
    height: auto !important;
    max-height: none !important;
    transform: none !important;
    contain: none !important;
    will-change: auto !important;
    filter: none !important;
    perspective: none !important;
    clip: auto !important;
    clip-path: none !important;
}
.scb-root--floating.scb-pos--bottom-right { right: 24px !important; left: auto !important; }
.scb-root--floating.scb-pos--bottom-left  { left: 24px !important;  right: auto !important; }

/* ==========================================================================
   FAB (Floating Action Button)
   ========================================================================== */

.scb-fab {
    width: 56px !important;
    height: 56px !important;
    min-width: 56px !important;
    min-height: 56px !important;
    border-radius: 50% !important;
    border: none !important;
    background: var(--scb-primary) !important;
    color: var(--scb-header-text) !important;
    cursor: pointer !important;
    box-shadow: 0 4px 16px rgba(0,0,0,.2) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    transition: transform 0.3s, box-shadow 0.3s !important;
    position: relative !important;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    overflow: visible !important;
    z-index: 999999 !important;
    outline: none !important;
    -webkit-appearance: none !important;
    appearance: none !important;
    text-indent: 0 !important;
    padding: 0 !important;
    margin: 0 !important;
    line-height: 1 !important;
    font-size: 0 !important;
}
.scb-fab:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 22px rgba(0,0,0,.25) !important;
    opacity: 1 !important;
}
.scb-fab:focus {
    outline: 2px solid var(--scb-primary) !important;
    outline-offset: 3px;
}

.scb-fab__icon {
    transition: opacity 0.25s, transform 0.25s;
    position: absolute !important;
    display: block !important;
    opacity: 1;
    width: 24px !important;
    height: 24px !important;
    pointer-events: none !important;
}
.scb-fab__icon--close { opacity: 0; transform: rotate(-90deg); }

.scb-root--open .scb-fab__icon--chat  { opacity: 0; transform: rotate(90deg); }
.scb-root--open .scb-fab__icon--close { opacity: 1; transform: rotate(0); }

/* ==========================================================================
   Chat window
   ========================================================================== */

.scb-window {
    width: 370px !important;
    min-width: 370px !important;
    max-width: 100vw !important;
    height: 520px !important;
    min-height: 300px !important;
    background: var(--scb-bg, #ffffff) !important;
    border-radius: var(--scb-radius) !important;
    box-shadow: var(--scb-shadow) !important;
    display: flex !important;
    flex-direction: column !important;
    overflow: hidden !important;
    transition: opacity 0.3s, transform 0.3s !important;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    z-index: 999999 !important;
    border: none !important;
    contain: none !important;
    transform-origin: bottom center !important;
}

/* Floating specific */
.scb-root--floating .scb-window {
    position: absolute !important;
    bottom: 70px !important;
}
.scb-pos--bottom-right .scb-window { right: 0 !important; left: auto !important; }
.scb-pos--bottom-left  .scb-window { left: 0 !important;  right: auto !important; }

/* Hidden state — ONLY when explicitly toggled via JS */
.scb-window--hidden {
    opacity: 0 !important;
    pointer-events: none !important;
    transform: translateY(16px) scale(0.96) !important;
    visibility: hidden !important;
}

/* Embedded mode */
.scb-root--embedded .scb-window {
    position: relative !important;
    width: 100% !important;
    height: 500px !important;
    margin: 1.5em 0;
}

/* ==========================================================================
   Header
   ========================================================================== */

.scb-header {
    display: flex !important;
    align-items: center !important;
    gap: 10px !important;
    padding: 14px 18px !important;
    background: var(--scb-primary, #6c63ff) !important;
    color: var(--scb-header-text, #ffffff) !important;
    flex-shrink: 0 !important;
    border: none !important;
    min-height: 48px !important;
    width: 100% !important;
    max-width: none !important;
}

.scb-header__dot {
    width: 9px !important;
    height: 9px !important;
    border-radius: 50% !important;
    background: #44e544 !important;
    flex-shrink: 0;
    animation: scb-pulse 2s infinite;
    display: block !important;
}

@keyframes scb-pulse {
    0%, 100% { opacity: 1; }
    50%      { opacity: .45; }
}

.scb-header__title {
    flex: 1 !important;
    font-weight: 600 !important;
    font-size: 0.95em !important;
    color: inherit !important;
    display: block !important;
    line-height: 1.4 !important;
}

.scb-header__close {
    all: unset;
    cursor: pointer !important;
    display: flex !important;
    align-items: center !important;
    opacity: 0.8;
    transition: opacity 0.2s;
    background: transparent !important;
    border: none !important;
    color: inherit !important;
    padding: 4px !important;
}
.scb-header__close:hover { opacity: 1; }

/* ==========================================================================
   Messages area
   ========================================================================== */

.scb-messages {
    flex: 1 !important;
    overflow-y: auto !important;
    overflow-x: hidden !important;
    padding: 16px !important;
    display: flex !important;
    flex-direction: column !important;
    gap: 6px !important;
    background: var(--scb-bg, #ffffff) !important;
    min-height: 0 !important;
    width: 100% !important;
    max-width: none !important;
}

/* Custom scrollbar */
.scb-messages::-webkit-scrollbar { width: 5px; }
.scb-messages::-webkit-scrollbar-track { background: transparent; }
.scb-messages::-webkit-scrollbar-thumb { background: rgba(0,0,0,.15); border-radius: 4px; }

/* ---------- Bubbles ---------- */

.scb-bubble {
    max-width: 82% !important;
    padding: 10px 14px !important;
    border-radius: 16px !important;
    word-wrap: break-word !important;
    overflow-wrap: break-word !important;
    display: block !important;
    line-height: 1.5 !important;
    font-size: var(--scb-size) !important;
    opacity: 1 !important;
    visibility: visible !important;
    height: auto !important;
    min-height: 0 !important;
    position: relative !important;
    transform: none !important;
    pointer-events: auto !important;
    animation: scb-bubble-in 0.25s ease forwards !important;
}

@keyframes scb-bubble-in {
    from { opacity: 0.01; transform: translateY(6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.scb-bubble--user {
    background: var(--scb-user) !important;
    color: #fff !important;
    align-self: flex-end !important;
    border-bottom-right-radius: 4px !important;
    margin-top: 2px !important;
    margin-bottom: 4px !important;
    max-width: 75% !important;
}

.scb-bubble--bot {
    background: var(--scb-bot) !important;
    color: #333 !important;
    align-self: flex-start !important;
    border-bottom-left-radius: 4px !important;
    max-width: 80% !important;
}

/* Extra spacing between a user answer and the next bot question */
.scb-bubble--user + .scb-bubble--bot {
    margin-top: 12px !important;
}

/* Extra spacing before answer choice buttons */
.scb-bubble--bot + .scb-quiz-choices {
    margin-top: 4px !important;
}

/* Extra spacing after answer choice buttons */
.scb-quiz-choices + .scb-bubble--user {
    margin-top: 2px !important;
}

/* Safety net: guarantee all direct children of messages area are visible */
.scb-messages > * {
    opacity: 1 !important;
    visibility: visible !important;
    height: auto !important;
    overflow: visible !important;
    position: relative !important;
    transform: none !important;
    max-height: none !important;
    flex-shrink: 0 !important;
}

/* ==========================================================================
   Typing indicator
   ========================================================================== */

.scb-typing {
    display: flex !important;
    gap: 5px !important;
    padding: 0 20px 10px !important;
    align-self: flex-start;
}

.scb-typing span {
    width: 7px !important;
    height: 7px !important;
    background: #bbb !important;
    border-radius: 50% !important;
    animation: scb-dot 1.2s infinite;
    display: block !important;
}
.scb-typing span:nth-child(2) { animation-delay: 0.2s; }
.scb-typing span:nth-child(3) { animation-delay: 0.4s; }

@keyframes scb-dot {
    0%, 80%, 100% { transform: scale(0.7); opacity: 0.4; }
    40%           { transform: scale(1);   opacity: 1; }
}

.scb-typing--hidden { display: none !important; }

/* ==========================================================================
   Input bar
   ========================================================================== */

.scb-input {
    display: flex !important;
    align-items: center !important;
    gap: 0 !important;
    border-top: 1px solid rgba(0,0,0,.08) !important;
    padding: 0 !important;
    flex-shrink: 0 !important;
    background: var(--scb-bg, #ffffff) !important;
    border-bottom: none !important;
    border-left: none !important;
    border-right: none !important;
    margin: 0 !important;
    width: 100% !important;
    max-width: none !important;
    min-height: 48px !important;
    position: relative !important;
}

.scb-input__field {
    flex: 1 !important;
    border: none !important;
    outline: none !important;
    padding: 14px 16px !important;
    font-size: 0.92em !important;
    font-family: inherit !important;
    background: transparent !important;
    color: var(--scb-text, #333) !important;
    width: auto !important;
    height: auto !important;
    min-height: 0 !important;
    max-width: none !important;
    box-shadow: none !important;
    -webkit-appearance: none !important;
    appearance: none !important;
    border-radius: 0 !important;
    margin: 0 !important;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    cursor: text !important;
    display: block !important;
    line-height: 1.5 !important;
}

.scb-input__field:focus {
    outline: none !important;
    box-shadow: none !important;
    border: none !important;
}

.scb-input__field::placeholder {
    color: #999 !important;
    opacity: 1 !important;
}

.scb-input__send {
    all: unset;
    cursor: pointer !important;
    padding: 12px 16px !important;
    color: var(--scb-primary) !important;
    display: flex !important;
    align-items: center !important;
    justify-content: center !important;
    transition: transform 0.2s, opacity 0.2s;
    background: transparent !important;
    border: none !important;
    opacity: 1 !important;
    visibility: visible !important;
    pointer-events: auto !important;
    min-width: 44px !important;
    min-height: 44px !important;
    flex-shrink: 0 !important;
}
.scb-input__send:hover {
    transform: scale(1.12);
    opacity: 0.8 !important;
}

.scb-input__send svg {
    display: block !important;
    width: 18px !important;
    height: 18px !important;
    pointer-events: none !important;
}

/* ==========================================================================
   Responsive
   ========================================================================== */

@media (max-width: 480px) {
    .scb-root--floating {
        bottom: 12px !important;
    }
    .scb-root--floating.scb-pos--bottom-right { right: 12px !important; left: auto !important; }
    .scb-root--floating.scb-pos--bottom-left  { left: 12px !important;  right: auto !important; }

    .scb-window {
        width: calc(100vw - 24px) !important;
        height: calc(100vh - 100px) !important;
        border-radius: 12px !important;
    }
    .scb-root--floating .scb-window {
        bottom: 66px !important;
    }
    .scb-pos--bottom-right .scb-window { right: -12px !important; }
    .scb-pos--bottom-left  .scb-window { left: -12px !important; right: auto !important; }

    .scb-fab { width: 50px !important; height: 50px !important; min-width: 50px !important; min-height: 50px !important; }
}

@media (min-width: 481px) and (max-width: 768px) {
    .scb-window {
        width: 340px !important;
        height: 460px !important;
    }
}

/* ==========================================================================
   Quiz Mode — Clickable Answer Choice Buttons
   ========================================================================== */

.scb-quiz-choices {
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
    padding: 8px 0 !important;
    max-width: 92% !important;
    align-self: flex-start !important;
    visibility: visible !important;
    opacity: 1 !important;
    height: auto !important;
    overflow: visible !important;
    position: relative !important;
    transform: none !important;
    animation: scb-bubble-in 0.3s ease forwards !important;
}

.scb-quiz-choice-btn {
    display: block !important;
    width: 100% !important;
    padding: 11px 18px !important;
    border: 2px solid var(--scb-primary) !important;
    border-radius: 22px !important;
    background: transparent !important;
    color: var(--scb-primary) !important;
    font-family: inherit !important;
    font-size: 0.88em !important;
    font-weight: 500 !important;
    cursor: pointer !important;
    text-align: left !important;
    line-height: 1.4 !important;
    transition: background 0.2s, color 0.2s, transform 0.15s !important;
    pointer-events: auto !important;
    opacity: 1 !important;
    visibility: visible !important;
    -webkit-appearance: none !important;
    appearance: none !important;
    outline: none !important;
    box-shadow: none !important;
    margin: 0 !important;
    white-space: normal !important;
    word-wrap: break-word !important;
}

.scb-quiz-choice-btn:hover {
    background: var(--scb-primary) !important;
    color: var(--scb-header-text, #fff) !important;
    transform: translateY(-1px) !important;
}

.scb-quiz-choice-btn:active {
    transform: translateY(0) !important;
    opacity: 0.85 !important;
}

/* ==========================================================================
   Quiz Mode — Completion Options (Retake / Chat with AI)
   ========================================================================== */

.scb-quiz-completion {
    display: flex !important;
    gap: 10px !important;
    flex-wrap: wrap !important;
    padding: 10px 0 !important;
    align-self: flex-start !important;
    visibility: visible !important;
    opacity: 1 !important;
    height: auto !important;
    overflow: visible !important;
    position: relative !important;
    transform: none !important;
    animation: scb-bubble-in 0.3s ease forwards !important;
}

.scb-quiz-completion-btn {
    display: inline-block !important;
    padding: 10px 22px !important;
    border: 2px solid var(--scb-primary) !important;
    border-radius: 22px !important;
    background: transparent !important;
    color: var(--scb-primary) !important;
    font-family: inherit !important;
    font-size: 0.85em !important;
    font-weight: 600 !important;
    cursor: pointer !important;
    transition: background 0.2s, color 0.2s, transform 0.15s !important;
    pointer-events: auto !important;
    opacity: 1 !important;
    visibility: visible !important;
    -webkit-appearance: none !important;
    appearance: none !important;
    outline: none !important;
    box-shadow: none !important;
    margin: 0 !important;
    line-height: 1.4 !important;
}

.scb-quiz-completion-btn:hover {
    background: var(--scb-primary) !important;
    color: var(--scb-header-text, #fff) !important;
    transform: translateY(-1px) !important;
}

.scb-quiz-completion-btn--ai {
    background: var(--scb-primary) !important;
    color: var(--scb-header-text, #fff) !important;
    border-color: var(--scb-primary) !important;
}

.scb-quiz-completion-btn--ai:hover {
    opacity: 0.88 !important;
}