/* =============================================================================
   TOGASHI — AI Chat Widget Styles
   Floating widget + modal conversation interface
   ============================================================================= */

/* --- Floating Button --- */
.chat-fab {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 56px;
    height: 56px;
    background: linear-gradient(135deg, var(--color-primary-container), var(--color-primary));
    color: #fff;
    border-radius: var(--radius-full);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    z-index: var(--z-chat);
    box-shadow: 0 4px 20px rgba(123, 0, 0, 0.4);
    transition: all var(--transition-base);
    border: none;
}

.chat-fab:hover {
    transform: scale(1.1);
    box-shadow: 0 6px 30px rgba(123, 0, 0, 0.5);
}

.chat-fab .material-symbols-outlined {
    font-size: 28px;
    transition: transform var(--transition-base);
}

.chat-fab.open .material-symbols-outlined {
    transform: rotate(180deg);
}

/* Pulse animation on load */
@keyframes chatPulse {
    0% { box-shadow: 0 0 0 0 rgba(123, 0, 0, 0.4); }
    70% { box-shadow: 0 0 0 12px rgba(123, 0, 0, 0); }
    100% { box-shadow: 0 0 0 0 rgba(123, 0, 0, 0); }
}

.chat-fab.pulse {
    animation: chatPulse 2s ease infinite;
}

/* --- Modal Container --- */
.chat-modal {
    position: fixed;
    bottom: 96px;
    right: 24px;
    width: 390px;
    max-height: 70vh;
    background-color: var(--color-surface-container-lowest);
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--radius-xl);
    display: flex;
    flex-direction: column;
    z-index: var(--z-chat);
    box-shadow: var(--shadow-card);
    opacity: 0;
    transform: translateY(20px) scale(0.95);
    pointer-events: none;
    transition: all var(--transition-base);
    overflow: hidden;
}

.chat-modal.open {
    opacity: 1;
    transform: translateY(0) scale(1);
    pointer-events: auto;
}

@media (max-width: 480px) {
    .chat-modal {
        bottom: 0;
        right: 0;
        left: 0;
        width: 100%;
        max-height: 85vh;
        border-radius: var(--radius-xl) var(--radius-xl) 0 0;
    }
}

/* --- Chat Header --- */
.chat-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--color-outline-variant);
    flex-shrink: 0;
}

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

.chat-avatar {
    width: 36px;
    height: 36px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--color-primary-container), var(--color-primary));
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    font-size: 14px;
    font-family: var(--font-display);
    font-weight: 700;
}

.chat-title {
    font-family: var(--font-display);
    font-size: 16px;
    font-weight: 600;
    color: var(--color-on-surface);
}

.chat-subtitle {
    font-size: 11px;
    color: var(--color-secondary);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    font-weight: 600;
}

.chat-close-btn {
    color: var(--color-on-surface-variant);
    padding: 4px;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.chat-close-btn:hover {
    color: var(--color-primary);
}

/* --- Messages Area --- */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: var(--chat-gap);
    min-height: 200px;
}

/* --- Bubbles --- */
.chat-bubble {
    max-width: 85%;
    padding: 12px 16px;
    font-family: var(--font-chat);
    font-size: var(--text-chat-size);
    line-height: var(--text-chat-line);
    word-break: break-word;
}

.chat-bubble-assistant {
    background-color: var(--color-surface-container);
    color: var(--color-on-surface);
    border-radius: var(--radius-lg) var(--radius-lg) var(--radius-lg) var(--radius-sm);
    align-self: flex-start;
    border: 1px solid var(--color-outline-variant);
}

.chat-bubble-user {
    background-color: var(--color-primary-container);
    color: #fff;
    border-radius: var(--radius-lg) var(--radius-lg) var(--radius-sm) var(--radius-lg);
    align-self: flex-end;
}

.chat-bubble-assistant .chat-accent {
    color: var(--color-secondary);
    font-weight: 600;
}

/* Typing indicator */
.chat-typing {
    display: flex;
    align-items: center;
    gap: 4px;
    padding: 12px 16px;
    align-self: flex-start;
}

.chat-typing-dot {
    width: 6px;
    height: 6px;
    background-color: var(--color-on-surface-variant);
    border-radius: var(--radius-full);
    animation: chatTyping 1.4s ease infinite;
}

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

@keyframes chatTyping {
    0%, 60%, 100% { opacity: 0.3; transform: scale(0.8); }
    30% { opacity: 1; transform: scale(1.2); }
}

/* --- Quick Replies --- */
.chat-quick-replies {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0 20px 12px 20px;
    flex-shrink: 0;
}

.chat-quick-reply {
    padding: 8px 16px;
    background-color: var(--color-surface-container-lowest);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    font-family: var(--font-chat);
    font-size: 13px;
    border-radius: var(--radius-full);
    cursor: pointer;
    transition: all var(--transition-fast);
    white-space: nowrap;
}

.chat-quick-reply:hover {
    background-color: var(--color-primary);
    color: var(--color-on-primary);
}

/* --- Input Area --- */
.chat-input-area {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 12px 16px;
    border-top: 1px solid var(--color-outline-variant);
    flex-shrink: 0;
}

.chat-input {
    flex: 1;
    padding: 10px 0;
    background: transparent;
    border: none;
    border-bottom: 1px solid var(--color-on-surface-variant);
    color: var(--color-on-surface);
    font-family: var(--font-chat);
    font-size: var(--text-chat-size);
    outline: none;
    transition: border-color var(--transition-fast);
}

.chat-input:focus {
    border-bottom-color: var(--color-secondary);
}

.chat-input::placeholder {
    color: var(--color-on-surface-variant);
    opacity: 0.5;
}

.chat-send-btn {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-full);
    background-color: var(--color-surface-container-high);
    color: var(--color-on-surface-variant);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    flex-shrink: 0;
    border: none;
}

.chat-send-btn:not(:disabled) {
    background-color: var(--color-primary) !important;
    color: #ffffff !important;
    box-shadow: 0 2px 8px rgba(123, 0, 0, 0.3);
}

.chat-send-btn:not(:disabled) .material-symbols-outlined {
    font-variation-settings: 'FILL' 1, 'wght' 400, 'GRAD' 0, 'opsz' 24;
    color: #ffffff !important;
}

.chat-send-btn:hover:not(:disabled) {
    background-color: var(--color-primary-container) !important;
    box-shadow: 0 4px 12px rgba(123, 0, 0, 0.4);
}

.chat-send-btn:disabled {
    opacity: 0.4;
    cursor: not-allowed;
}

/* --- Conversation Intro (before first message) --- */
.chat-intro {
    text-align: center;
    padding: 20px;
}

.chat-intro-logo {
    font-family: var(--font-display);
    font-size: 24px;
    font-weight: 700;
    color: var(--color-primary);
    margin-bottom: 8px;
}

.chat-intro-text {
    font-family: var(--font-chat);
    font-size: 14px;
    color: var(--color-on-surface-variant);
    line-height: 1.6;
    max-width: 280px;
    margin: 0 auto;
}

/* --- Fixed Question Card --- */
.chat-question-card {
    background-color: var(--color-surface-container);
    border: 1px solid var(--color-outline-variant);
    border-radius: var(--radius-lg);
    padding: 16px;
    margin: 4px 0;
    align-self: flex-start;
    max-width: 90%;
}

.chat-question-title {
    font-family: var(--font-chat);
    font-size: 14px;
    font-weight: 600;
    color: var(--color-secondary);
    margin-bottom: 12px;
}

.chat-question-options {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.chat-question-option {
    padding: 10px 14px;
    background-color: var(--color-surface-container-lowest);
    border: 1px solid var(--color-primary);
    color: var(--color-primary);
    border-radius: var(--radius-default);
    cursor: pointer;
    font-family: var(--font-chat);
    font-size: 13px;
    text-align: left;
    transition: all var(--transition-fast);
}

.chat-question-option:hover {
    background-color: var(--color-primary);
    color: var(--color-on-primary);
}

/* --- WhatsApp CTA at bottom of chat --- */
.chat-whatsapp-cta {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px;
    background-color: #25D366;
    color: #fff;
    font-family: var(--font-label);
    font-size: var(--text-label-size);
    font-weight: 600;
    letter-spacing: 0.05em;
    text-transform: uppercase;
    cursor: pointer;
    border: none;
    border-radius: 0 0 var(--radius-xl) var(--radius-xl);
    transition: opacity var(--transition-fast);
    text-decoration: none;
}

.chat-whatsapp-cta:hover {
    opacity: 0.9;
}

/* --- Links in Chat Bubbles --- */
.chat-link {
    color: var(--color-secondary) !important;
    text-decoration: underline;
    font-weight: 600;
    transition: color var(--transition-fast);
}

.chat-link:hover {
    color: var(--color-on-primary-container) !important;
    text-decoration: none;
}