/* Smart AI Chatbot — Frontend Chat Widget */

/* ── CSS Variables ─────────────────────────────────────────── */
:root {
    --sasc-primary:     #6366f1;
    --sasc-primary-d:   #4f46e5;
    --sasc-primary-l:   #ede9fe;
    --sasc-white:       #ffffff;
    --sasc-bg:          #f8fafc;
    --sasc-text:        #1e293b;
    --sasc-text-muted:  #64748b;
    --sasc-border:      #e2e8f0;
    --sasc-shadow:      0 20px 60px rgba(0,0,0,.18);
    --sasc-radius:      16px;
    --sasc-radius-sm:   10px;
}
.sasc-dark {
    --sasc-white:      #1e1e2e;
    --sasc-bg:         #16213e;
    --sasc-text:       #e2e8f0;
    --sasc-text-muted: #94a3b8;
    --sasc-border:     #334155;
}

/* ── Widget Container ─────────────────────────────────────── */
#sasc-widget {
    position: fixed;
    bottom: 20px;
    right: 24px;
    z-index: 999999;
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
}
#sasc-widget.sasc-pos-left {
    right: auto;
    left: 24px;
}

/* ── Toggle Button ────────────────────────────────────────── */
.sasc-toggle-btn {
    width: 58px;
    height: 58px;
    border-radius: 50%;
    background: var(--sasc-primary);
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 4px 20px rgba(99,102,241,.5);
    transition: all .25s cubic-bezier(.175,.885,.32,1.275);
    position: relative;
}
.sasc-toggle-btn:hover {
    transform: scale(1.08);
    box-shadow: 0 6px 28px rgba(99,102,241,.6);
}
.sasc-toggle-btn:active { transform: scale(.96); }

.sasc-toggle-icon { display: flex; align-items: center; justify-content: center; }

.sasc-toggle-logo {
    width: 38px;
    height: 38px;
    border-radius: 50%;
    object-fit: cover;
}

.sasc-notif-dot {
    position: absolute;
    top: 6px;
    right: 6px;
    width: 11px;
    height: 11px;
    background: #22c55e;
    border-radius: 50%;
    border: 2px solid #fff;
    animation: sasc-pulse 2s infinite;
}
@keyframes sasc-pulse {
    0%,100% { transform: scale(1); }
    50%      { transform: scale(1.25); }
}

/* ── Chat Window ──────────────────────────────────────────── */
.sasc-chat-window {
    position: absolute;
    bottom: 72px;
    right: 0;
    width: 370px;
    max-height: 600px;
    background: var(--sasc-white);
    border-radius: var(--sasc-radius);
    box-shadow: var(--sasc-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    animation: sasc-slide-up .3s cubic-bezier(.175,.885,.32,1.275);
    border: 1px solid var(--sasc-border);
}
.sasc-pos-left .sasc-chat-window {
    right: auto;
    left: 0;
}
@keyframes sasc-slide-up {
    from { opacity: 0; transform: translateY(20px) scale(.95); }
    to   { opacity: 1; transform: translateY(0) scale(1); }
}

@media (max-width: 440px) {
    #sasc-widget { right: 10px; bottom: 10px; }
    .sasc-chat-window { width: calc(100vw - 20px); right: 0; }
}

/* ── Chat Header ──────────────────────────────────────────── */
.sasc-chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 14px 16px;
    background: linear-gradient(135deg, var(--sasc-primary), #8b5cf6);
    color: #fff;
    flex-shrink: 0;
}
.sasc-chat-header-info { display: flex; align-items: center; gap: 12px; }
.sasc-chat-header-actions { display: flex; gap: 4px; }

.sasc-avatar {
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(255,255,255,.2);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    flex-shrink: 0;
}

.sasc-chat-title { font-size: 14px; font-weight: 700; }
.sasc-chat-status { font-size: 11px; opacity: .85; display: flex; align-items: center; gap: 5px; margin-top: 1px; }

.sasc-online-dot {
    width: 7px;
    height: 7px;
    background: #4ade80;
    border-radius: 50%;
    display: inline-block;
    animation: sasc-pulse 2s infinite;
}

.sasc-header-btn {
    background: rgba(255,255,255,.15);
    border: none;
    cursor: pointer;
    color: #fff;
    width: 28px;
    height: 28px;
    border-radius: 6px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .15s;
}
.sasc-header-btn:hover { background: rgba(255,255,255,.25); }

/* ── Messages ─────────────────────────────────────────────── */
.sasc-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
    scroll-behavior: smooth;
    background: var(--sasc-bg);
}
.sasc-messages::-webkit-scrollbar { width: 4px; }
.sasc-messages::-webkit-scrollbar-track { background: transparent; }
.sasc-messages::-webkit-scrollbar-thumb { background: var(--sasc-border); border-radius: 4px; }

/* ── Message Bubbles ──────────────────────────────────────── */
.sasc-msg {
    display: flex;
    gap: 8px;
    max-width: 88%;
    animation: sasc-msg-in .25s ease;
}
@keyframes sasc-msg-in {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

.sasc-msg-bot { align-self: flex-start; }
.sasc-msg-user { align-self: flex-end; flex-direction: row-reverse; }

.sasc-msg-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: linear-gradient(135deg, var(--sasc-primary), #8b5cf6);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 13px;
    flex-shrink: 0;
    margin-top: 2px;
}

.sasc-msg-bubble {
    padding: 10px 14px;
    border-radius: 16px;
    font-size: 13.5px;
    line-height: 1.55;
    word-break: break-word;
    white-space: pre-wrap;
}
.sasc-msg-bot  .sasc-msg-bubble {
    background: var(--sasc-white);
    color: var(--sasc-text);
    border: 1px solid var(--sasc-border);
    border-bottom-left-radius: 4px;
}
.sasc-msg-user .sasc-msg-bubble {
    background: var(--sasc-primary);
    color: #fff;
    border-bottom-right-radius: 4px;
}

.sasc-msg-time {
    font-size: 10px;
    color: var(--sasc-text-muted);
    margin-top: 3px;
    padding: 0 4px;
}
.sasc-msg-user .sasc-msg-time { text-align: right; }

/* ── Typing Indicator ─────────────────────────────────────── */
.sasc-typing-indicator {
    display: flex;
    gap: 4px;
    padding: 8px 16px;
    align-items: center;
    background: var(--sasc-bg);
}
.sasc-typing-dot {
    width: 7px;
    height: 7px;
    border-radius: 50%;
    background: var(--sasc-primary);
    opacity: .4;
    animation: sasc-typing 1.2s infinite;
}
.sasc-typing-dot:nth-child(2) { animation-delay: .2s; }
.sasc-typing-dot:nth-child(3) { animation-delay: .4s; }
@keyframes sasc-typing {
    0%,80%,100% { opacity: .4; transform: scale(1); }
    40%         { opacity: 1;  transform: scale(1.3); }
}

/* ── Quick Replies ────────────────────────────────────────── */
.sasc-quick-replies {
    display: flex;
    flex-wrap: wrap;
    gap: 6px;
    padding: 6px 14px 8px;
    background: var(--sasc-bg);
    border-top: 1px solid var(--sasc-border);
}
.sasc-qr-btn {
    padding: 5px 12px;
    border: 1px solid var(--sasc-primary);
    border-radius: 20px;
    font-size: 12px;
    font-weight: 500;
    color: var(--sasc-primary);
    background: transparent;
    cursor: pointer;
    transition: all .15s;
    white-space: nowrap;
}
.sasc-qr-btn:hover {
    background: var(--sasc-primary);
    color: #fff;
}

/* ── OTP Panel ────────────────────────────────────────────── */
.sasc-otp-panel,
.sasc-appt-panel,
.sasc-lead-panel {
    padding: 14px;
    background: #f5f3ff;
    border-top: 1px solid #ddd6fe;
    flex-shrink: 0;
    max-height: 300px;
    overflow-y: auto;
}
.sasc-dark .sasc-otp-panel,
.sasc-dark .sasc-appt-panel,
.sasc-dark .sasc-lead-panel {
    background: #1e1b4b;
    border-color: #3730a3;
}

.sasc-otp-title,
.sasc-panel-title {
    font-size: 13px;
    font-weight: 700;
    color: var(--sasc-primary);
    margin-bottom: 10px;
}

.sasc-otp-row {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}
.sasc-otp-input {
    flex: 1;
    padding: 8px 12px;
    border: 1px solid var(--sasc-border);
    border-radius: 8px;
    font-size: 13px;
    outline: none;
    background: var(--sasc-white);
    color: var(--sasc-text);
}
.sasc-otp-input:focus { border-color: var(--sasc-primary); }

.sasc-btn-otp {
    padding: 8px 14px;
    background: var(--sasc-primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 12px;
    font-weight: 600;
    cursor: pointer;
    white-space: nowrap;
    transition: background .15s;
}
.sasc-btn-otp:hover { background: var(--sasc-primary-d); }
.sasc-btn-otp:disabled { opacity: .6; cursor: not-allowed; }
.sasc-btn-verify { background: #10b981; }
.sasc-btn-verify:hover { background: #059669; }

.sasc-otp-timer { font-size: 12px; color: #ef4444; font-weight: 600; margin-bottom: 4px; }
.sasc-resend-btn {
    font-size: 12px;
    color: var(--sasc-primary);
    background: none;
    border: none;
    cursor: pointer;
    text-decoration: underline;
}

.sasc-otp-msg {
    font-size: 12px;
    margin-top: 6px;
    font-weight: 500;
    min-height: 18px;
}
.sasc-otp-msg.success { color: #059669; }
.sasc-otp-msg.error   { color: #dc2626; }

/* ── Appointment / Lead Panel ─────────────────────────────── */
.sasc-appt-input {
    width: 100%;
    padding: 8px 12px;
    border: 1px solid var(--sasc-border);
    border-radius: 8px;
    font-size: 13px;
    margin-bottom: 8px;
    outline: none;
    background: var(--sasc-white);
    color: var(--sasc-text);
    box-sizing: border-box;
}
.sasc-appt-input:focus { border-color: var(--sasc-primary); }

.sasc-textarea-sm { resize: none; height: 68px; }

.sasc-btn-book {
    width: 100%;
    padding: 10px;
    background: var(--sasc-primary);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-size: 13px;
    font-weight: 600;
    cursor: pointer;
    margin-bottom: 8px;
    transition: background .15s;
}
.sasc-btn-book:hover { background: var(--sasc-primary-d); }
.sasc-btn-book:disabled { opacity: .6; cursor: not-allowed; }

.sasc-appt-cancel-btn {
    width: 100%;
    background: none;
    border: none;
    font-size: 12px;
    color: var(--sasc-text-muted);
    cursor: pointer;
    text-align: center;
    margin-bottom: 4px;
    text-decoration: underline;
}

/* ── Input Area ───────────────────────────────────────────── */
.sasc-input-area {
    border-top: 1px solid var(--sasc-border);
    background: var(--sasc-white);
    padding: 10px 12px 8px;
    flex-shrink: 0;
}

.sasc-input-row {
    display: flex;
    align-items: flex-end;
    gap: 8px;
}

.sasc-user-input {
    flex: 1;
    border: 1px solid var(--sasc-border);
    border-radius: 10px;
    padding: 9px 13px;
    font-size: 13.5px;
    resize: none;
    outline: none;
    max-height: 120px;
    overflow-y: auto;
    line-height: 1.5;
    color: var(--sasc-text);
    background: var(--sasc-bg);
    transition: border-color .15s;
    font-family: inherit;
}
.sasc-user-input:focus { border-color: var(--sasc-primary); }
.sasc-user-input::placeholder { color: var(--sasc-text-muted); }

.sasc-send-btn {
    width: 40px;
    height: 40px;
    border-radius: 10px;
    background: var(--sasc-primary);
    border: none;
    cursor: pointer;
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background .15s, transform .1s;
    flex-shrink: 0;
}
.sasc-send-btn:hover { background: var(--sasc-primary-d); }
.sasc-send-btn:active { transform: scale(.94); }
.sasc-send-btn:disabled { opacity: .5; cursor: not-allowed; }

.sasc-action-btns {
    display: flex;
    gap: 6px;
    margin-top: 8px;
    flex-wrap: wrap;
}
.sasc-action-btn {
    padding: 4px 10px;
    font-size: 11px;
    border: 1px solid var(--sasc-border);
    border-radius: 20px;
    background: var(--sasc-bg);
    color: var(--sasc-text-muted);
    cursor: pointer;
    transition: all .15s;
    white-space: nowrap;
}
.sasc-action-btn:hover {
    border-color: var(--sasc-primary);
    color: var(--sasc-primary);
    background: var(--sasc-primary-l);
}

.sasc-powered-by {
    text-align: center;
    font-size: 10px;
    color: var(--sasc-text-muted);
    margin-top: 6px;
    opacity: .7;
}