/* ============================================
   MEDICODA — AI Chat Assistant Widget Styles
   ============================================ */

/* ── Floating Action Button (FAB) ── */
.chat-fab {
    position: fixed;
    bottom: var(--space-8);
    left: var(--space-8);
    z-index: var(--z-sticky);
    display: inline-flex;
    align-items: center;
    gap: var(--space-3);
    padding: 0.85rem 1.4rem;
    background: var(--gradient-primary);
    color: var(--color-white);
    border: none;
    border-radius: var(--radius-full);
    box-shadow: 0 10px 25px -3px rgba(5, 150, 105, 0.4), 0 4px 6px -2px rgba(5, 150, 105, 0.2);
    cursor: pointer;
    font-family: var(--font-arabic);
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    transition: all var(--transition-base);
    user-select: none;
}

.chat-fab:hover {
    transform: translateY(-4px) scale(1.03);
    box-shadow: 0 15px 30px -4px rgba(5, 150, 105, 0.55);
}

.chat-fab-icon {
    font-size: 1.35rem;
    display: flex;
    align-items: center;
    justify-content: center;
    animation: bounce 2.5s infinite;
}

.chat-fab-badge {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    background-color: rgba(255, 255, 255, 0.2);
    padding: 2px 8px;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
}

@keyframes bounce {
    0%, 20%, 50%, 80%, 100% { transform: translateY(0); }
    40% { transform: translateY(-5px); }
    60% { transform: translateY(-3px); }
}

/* ── Chat Backdrop ── */
.chat-backdrop {
    position: fixed;
    inset: 0;
    background-color: rgba(15, 23, 42, 0.5);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    z-index: var(--z-modal-backdrop);
    opacity: 0;
    visibility: hidden;
    transition: all var(--transition-base);
}

.chat-backdrop.is-active {
    opacity: 1;
    visibility: visible;
}

/* ── Chat Panel / Modal ── */
.chat-panel {
    position: fixed;
    bottom: var(--space-6);
    left: var(--space-6);
    width: 420px;
    max-width: calc(100vw - 2rem);
    height: 640px;
    max-height: calc(100vh - 4rem);
    background-color: var(--color-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-2xl);
    box-shadow: 0 25px 50px -12px rgba(15, 23, 42, 0.25);
    z-index: var(--z-chat);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    transform: translateY(24px) scale(0.96);
    opacity: 0;
    visibility: hidden;
    transition: all 0.35s cubic-bezier(0.16, 1, 0.3, 1);
}

.chat-panel.is-active {
    transform: translateY(0) scale(1);
    opacity: 1;
    visibility: visible;
}

/* ── Chat Header ── */
.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 1.1rem 1.25rem;
    background: var(--gradient-primary);
    color: var(--color-white);
    border-bottom: 1px solid rgba(255, 255, 255, 0.1);
}

.chat-header-info {
    display: flex;
    align-items: center;
    gap: var(--space-3);
}

.chat-avatar {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    background-color: rgba(255, 255, 255, 0.2);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    border: 2px solid rgba(255, 255, 255, 0.3);
}

.chat-title {
    font-size: var(--font-size-base);
    font-weight: var(--font-weight-bold);
    color: var(--color-white);
}

.chat-status {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: var(--font-size-xs);
    color: rgba(255, 255, 255, 0.9);
}

.chat-status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: #34D399;
    box-shadow: 0 0 6px #34D399;
}

.chat-close-btn {
    background: rgba(255, 255, 255, 0.15);
    border: none;
    color: var(--color-white);
    border-radius: 50%;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.chat-close-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

/* ── Chat Messages Body ── */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-5);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    background: linear-gradient(180deg, #F8FAFC 0%, #FFFFFF 100%);
}

.chat-msg {
    display: flex;
    gap: var(--space-2);
    max-width: 85%;
    animation: msg-in 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

@keyframes msg-in {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.chat-msg-bot {
    align-self: flex-start;
}

.chat-msg-user {
    align-self: flex-end;
    flex-direction: row-reverse;
}

.chat-msg-bubble {
    padding: 0.75rem 1rem;
    border-radius: var(--radius-xl);
    font-size: var(--font-size-sm);
    line-height: var(--line-height-relaxed);
    position: relative;
    word-break: break-word;
}

.chat-msg-bot .chat-msg-bubble {
    background-color: var(--color-white);
    color: var(--color-text);
    border: 1px solid var(--color-border);
    border-bottom-right-radius: var(--radius-xs);
    box-shadow: var(--shadow-xs);
}

.chat-msg-user .chat-msg-bubble {
    background: var(--gradient-primary);
    color: var(--color-white);
    border-bottom-left-radius: var(--radius-xs);
    box-shadow: 0 2px 6px rgba(5, 150, 105, 0.25);
}

.chat-msg-time {
    font-size: 0.65rem;
    color: var(--color-text-muted);
    margin-top: 4px;
    text-align: left;
}

.chat-msg-user .chat-msg-time {
    color: rgba(255, 255, 255, 0.75);
    text-align: right;
}

/* Quick Reply Chips in Chat */
.chat-chips {
    display: flex;
    flex-wrap: wrap;
    gap: var(--space-2);
    margin-top: var(--space-2);
}

.chat-chip {
    background-color: var(--color-primary-light);
    color: var(--color-primary-hover);
    border: 1px solid rgba(5, 150, 105, 0.25);
    padding: 0.45rem 0.85rem;
    border-radius: var(--radius-full);
    font-size: var(--font-size-xs);
    font-weight: var(--font-weight-bold);
    cursor: pointer;
    transition: all var(--transition-fast);
    font-family: var(--font-arabic);
}

.chat-chip:hover {
    background: var(--gradient-primary);
    color: var(--color-white);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

/* Appointment Confirmation Card in Chat */
.chat-appointment-card {
    background: #FFFFFF;
    border: 1.5px solid #10B981;
    border-radius: var(--radius-lg);
    padding: var(--space-4);
    margin-top: var(--space-2);
    box-shadow: 0 4px 12px rgba(16, 185, 129, 0.12);
}

.chat-appointment-header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-weight: var(--font-weight-bold);
    color: #047857;
    margin-bottom: var(--space-2);
}

.chat-appointment-row {
    display: flex;
    justify-content: space-between;
    font-size: var(--font-size-xs);
    padding: 4px 0;
    border-bottom: 1px dashed var(--color-border);
}

.chat-appointment-row:last-child {
    border-bottom: none;
}

/* Typing Indicator */
.chat-typing {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 0.75rem 1rem;
    background-color: var(--color-white);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-xl);
    width: fit-content;
}

.chat-typing-dot {
    width: 6px;
    height: 6px;
    background-color: var(--color-primary);
    border-radius: 50%;
    animation: typing 1.4s infinite both;
}

.chat-typing-dot:nth-child(1) { animation-delay: 0s; }
.chat-typing-dot:nth-child(2) { animation-delay: 0.2s; }
.chat-typing-dot:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
    0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; }
    40% { transform: scale(1); opacity: 1; }
}

/* ── Chat Input Footer ── */
.chat-input-container {
    padding: var(--space-4);
    background-color: var(--color-surface);
    border-top: 1px solid var(--color-border-light);
}

.chat-input-form {
    display: flex;
    align-items: center;
    gap: var(--space-2);
}

.chat-input {
    flex: 1;
    padding: 0.75rem 1rem;
    border: 1.5px solid var(--color-border);
    border-radius: var(--radius-full);
    font-family: var(--font-arabic);
    font-size: var(--font-size-sm);
    color: var(--color-text);
    outline: none;
    transition: all var(--transition-fast);
}

.chat-input:focus {
    border-color: var(--color-primary);
    box-shadow: 0 0 0 3px rgba(5, 150, 105, 0.15);
}

.chat-send-btn {
    width: 42px;
    height: 42px;
    border-radius: 50%;
    padding: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gradient-primary);
    color: var(--color-white);
    border: none;
    cursor: pointer;
    flex-shrink: 0;
    box-shadow: 0 2px 6px rgba(5, 150, 105, 0.3);
}

.icon-flip {
    transform: scaleX(-1);
}

/* ── Mobile Responsive ── */
@media (max-width: 640px) {
    .chat-panel {
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        max-width: 100%;
        height: 100vh;
        max-height: 100vh;
        border-radius: 0;
    }
    .chat-fab {
        bottom: var(--space-4);
        left: var(--space-4);
        padding: 0.75rem 1.1rem;
    }
}