/* ========================================
   MODERN CHATBOT — PREMIUM AESTHETICS
   ======================================== */

:root {
    --chat-primary: #3b82f6;
    --chat-secondary: #2563eb;
    --chat-bg: #ffffff;
    --chat-text: #0f172a;
    --chat-subtext: #64748b;
    --chat-bubble-bot: #f1f5f9;
    --chat-bubble-user: #3b82f6;
    --chat-shadow: 0 12px 48px rgba(0, 0, 0, 0.15);
}

/* --- Floating Button --- */
.chatbot-toggle {
    position: fixed;
    bottom: 2rem;
    right: 2rem;
    width: 64px;
    height: 64px;
    background: linear-gradient(135deg, var(--chat-primary), var(--chat-secondary));
    border-radius: 50%;
    color: #ffffff;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: 1000;
    box-shadow: 0 8px 32px rgba(59, 130, 246, 0.4);
    transition: all 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275);
    border: none;
    outline: none;
}

.chatbot-toggle:hover {
    transform: scale(1.1) translateY(-4px);
    box-shadow: 0 12px 40px rgba(59, 130, 246, 0.5);
}

.chatbot-toggle svg {
    width: 28px;
    height: 28px;
    transition: transform 0.3s ease;
}

.chatbot-toggle.open svg {
    transform: rotate(90deg);
}

/* --- Chat Window --- */
.chatbot-window {
    position: fixed;
    bottom: 6rem;
    right: 2rem;
    width: min(400px, 90vw);
    height: min(600px, 80vh);
    background: var(--chat-bg);
    border-radius: 20px;
    box-shadow: var(--chat-shadow);
    display: flex;
    flex-direction: column;
    overflow: hidden;
    z-index: 1001;
    opacity: 0;
    visibility: hidden;
    transform: translateY(20px) scale(0.95);
    transition: all 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    border: 1px solid rgba(0,0,0,0.05);
}

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

/* --- Header --- */
.chatbot-header {
    padding: 1.5rem;
    background: linear-gradient(135deg, var(--chat-primary), var(--chat-secondary));
    color: #ffffff;
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-shrink: 0;
}

.chatbot-header-avatar {
    width: 40px;
    height: 40px;
    background: rgba(255,255,255,0.2);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
}

.chatbot-header-info h3 {
    font-family: 'Outfit', sans-serif;
    font-size: 1rem;
    font-weight: 700;
    margin: 0;
}

.chatbot-header-info span {
    font-size: 0.75rem;
    opacity: 0.8;
}

.chatbot-header-close {
    margin-left: auto;
    background: rgba(0,0,0,0.1);
    border: none;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    color: #ffffff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.2s;
}

.chatbot-header-close:hover { background: rgba(0,0,0,0.2); }

/* --- Chat Messages --- */
.chatbot-messages {
    flex: 1;
    padding: 1.25rem;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: 1rem;
    background: #f8fafc;
}

.chat-msg {
    max-width: 85%;
    padding: 0.875rem 1rem;
    border-radius: 16px;
    font-size: 0.875rem;
    line-height: 1.6;
    animation: slideUpFade 0.3s ease forwards;
}

.chat-msg.bot {
    align-self: flex-start;
    background: var(--chat-bg);
    color: var(--chat-text);
    border-bottom-left-radius: 2px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.chat-msg.user {
    align-self: flex-end;
    background: var(--chat-bubble-user);
    color: #ffffff;
    border-bottom-right-radius: 2px;
}

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

/* --- Options/Buttons --- */
.chat-options {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 0.5rem;
}

.chat-option-btn {
    padding: 0.5rem 0.875rem;
    background: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 20px;
    font-size: 0.825rem;
    font-weight: 600;
    color: var(--chat-primary);
    cursor: pointer;
    transition: all 0.2s;
}

.chat-option-btn:hover {
    background: var(--chat-primary);
    border-color: var(--chat-primary);
    color: #ffffff;
    transform: translateY(-2px);
}

/* --- Input Area --- */
.chatbot-input-area {
    padding: 1rem;
    background: #ffffff;
    border-top: 1px solid #f1f5f9;
    display: flex;
    gap: 0.75rem;
    align-items: center;
}

.chatbot-input {
    flex: 1;
    border: 1px solid #e2e8f0;
    background: #f8fafc;
    padding: 0.75rem 1rem;
    border-radius: 24px;
    font-size: 0.875rem;
    outline: none;
    transition: all 0.2s;
}

.chatbot-input:focus {
    border-color: var(--chat-primary);
    background: #ffffff;
    box-shadow: 0 0 0 4px rgba(59, 130, 246, 0.1);
}

.chatbot-send-btn {
    width: 40px;
    height: 40px;
    background: var(--chat-primary);
    border: none;
    border-radius: 50%;
    color: #ffffff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.2s, background 0.2s;
}

.chatbot-send-btn:hover {
    background: var(--chat-secondary);
    transform: scale(1.05);
}

.chatbot-send-btn:disabled {
    background: #cbd5e1;
    cursor: not-allowed;
}

/* --- Appointment Flow Styles --- */
.chat-appointment-form {
    display: flex;
    flex-direction: column;
    gap: 0.75rem;
    width: 100%;
}

.chat-input-row {
    display: flex;
    flex-direction: column;
    gap: 0.25rem;
}

.chat-input-row label {
    font-size: 0.75rem;
    font-weight: 700;
    color: var(--chat-subtext);
}

.chat-input-field {
    padding: 0.6rem;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    font-size: 0.825rem;
}