/* ============================================================================
   CHAT WIDGET — CV Assistant Mascot
   Uses CV design tokens from _variables.css
   Position: right side, just above back-to-top button (right: 2rem)
   ============================================================================ */

/* ==========================================================================
   Toggle Button — right side, above back-to-top (bottom: 6rem)
   Matches existing fixed button style: dark bg, 50px, subtle opacity
   ========================================================================== */

.chat-toggle-btn {
    position: fixed;
    bottom: 6rem;
    right: 2rem;
    z-index: 1000;
    width: 50px;
    height: 50px;
    border-radius: 50%;
    background: var(--black-bar, #2b2b2b);
    color: white;
    border: none;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.4rem;
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    transition: all 0.3s ease;
    opacity: 0.4;
}

.chat-toggle-btn:hover {
    opacity: 1;
    transform: translateY(-3px);
    box-shadow: 0 6px 16px rgba(0, 0, 0, 0.4);
    background: var(--accent-green, #27ae60);
}

/* Open state (robot): wiggle */
.chat-toggle-btn:hover .chat-icon-open {
    animation: iconWiggle 0.5s ease;
}

/* Closed state (X): rotate clockwise */
.chat-toggle-btn:hover .chat-icon-close {
    transform: rotate(90deg);
    transition: transform 0.3s ease;
}

/* Icon swap: show mascot by default, close when active */
.chat-toggle-btn .chat-icon-close {
    display: none;
}

/* Wave greeting — pops up 3 times then stays hidden */
/* Wave greeting — independent of button opacity */
.chat-wave {
    position: fixed;
    bottom: calc(6rem + 38px);
    right: calc(2rem + 38px);
    z-index: 1001;
    font-size: 1.1rem;
    animation: chatWaveHello 5s ease-in-out 2s forwards;
    opacity: 0;
    pointer-events: none;
}

@keyframes chatWaveHello {
    /* === First wave === */
    0%   { opacity: 0; transform: rotate(0deg); }
    4%   { opacity: 1; transform: rotate(0deg); }
    7%   { transform: rotate(20deg); }
    10%  { transform: rotate(-15deg); }
    13%  { transform: rotate(18deg); }
    16%  { transform: rotate(-12deg); }
    19%  { transform: rotate(15deg); }
    22%  { transform: rotate(-8deg); }
    25%  { transform: rotate(0deg); }
    30%  { opacity: 1; }
    35%  { opacity: 0; }
    /* === Pause === */
    45%  { opacity: 0; transform: rotate(0deg); }
    /* === Second wave === */
    49%  { opacity: 1; transform: rotate(0deg); }
    52%  { transform: rotate(20deg); }
    55%  { transform: rotate(-15deg); }
    58%  { transform: rotate(18deg); }
    61%  { transform: rotate(-12deg); }
    64%  { transform: rotate(15deg); }
    67%  { transform: rotate(-8deg); }
    70%  { transform: rotate(0deg); }
    78%  { opacity: 1; }
    90%  { opacity: 0; }
    100% { opacity: 0; }
}

/* Hide wave when chat is open */
.chat-wave.chat-wave-hidden {
    display: none;
}

.chat-toggle-btn.mascot-active {
    opacity: 1;
    background: var(--accent-green, #27ae60);
}

.chat-toggle-btn.mascot-active .chat-icon-open {
    display: none;
}

.chat-toggle-btn.mascot-active .chat-icon-close {
    display: inline-block;
}

/* ==========================================================================
   Panel — right side, above the button
   ========================================================================== */

.chat-panel {
    position: fixed;
    bottom: 10.5rem;
    right: 2rem;
    width: 360px;
    max-height: 500px;
    background: var(--paper-bg, #ffffff);
    border: 1px solid var(--border-light, #e0e0e0);
    border-radius: 8px;
    box-shadow: var(--shadow-lg, 2px 2px 9px rgba(0, 0, 0, 0.5));
    display: none;
    flex-direction: column;
    z-index: 999;
    overflow: hidden;
    font-family: 'Source Sans Pro', 'Segoe UI', sans-serif;
    transition: all 0.25s ease;
}

.chat-panel.chat-open {
    display: flex;
}

/* Size: Half screen — docked right */
.chat-panel.chat-half {
    top: 0;
    right: 0;
    bottom: 0;
    left: auto;
    width: 50vw;
    height: auto;
    max-height: none;
    border-radius: 0;
    border-left: 2px solid var(--border-light);
}

.chat-panel.chat-half .chat-messages {
    max-height: none;
    flex: 1;
}

/* Size: Floating — draggable, resizable window */
.chat-panel.chat-float {
    bottom: 10.5rem;
    right: 2rem;
    top: auto;
    left: auto;
    width: 420px;
    height: 450px;
    max-height: 70vh;
    min-width: 300px;
    min-height: 250px;
    border-radius: 8px;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
    resize: both;
    overflow: hidden;
    transition: none;
}

/* Disable transition during active drag for instant movement */
.chat-panel.chat-dragging {
    transition: none !important;
    user-select: none;
}

.chat-panel.chat-float .chat-messages {
    max-height: none;
    flex: 1;
}

/* Size: Full screen */
.chat-panel.chat-full {
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    width: 100%;
    height: auto;
    max-height: none;
    border-radius: 0;
    border: none;
}

.chat-panel.chat-full .chat-messages {
    max-height: none;
    flex: 1;
}

/* ==========================================================================
   Header — accent-green for visual distinction
   ========================================================================== */

.chat-header {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    background: var(--accent-green, #27ae60);
    color: #ffffff;
    font-family: 'Quicksand', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
}

.chat-header iconify-icon {
    font-size: 1.1rem;
}

/* Header actions — icon buttons with tooltips */
.chat-header-actions {
    margin-left: auto;
    display: flex;
    align-items: center;
    gap: 1px;
}

.chat-mode-btn {
    background: none;
    border: none;
    color: rgba(255,255,255,0.5);
    cursor: pointer;
    font-size: 0.95rem;
    padding: 4px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: 4px;
    transition: all 0.15s;
    position: relative;
}

.chat-mode-btn:hover {
    color: #fff;
    background: rgba(255,255,255,0.15);
}

.chat-mode-btn.active {
    color: #fff;
    background: rgba(255,255,255,0.2);
}

/* Native tooltip via title attr — enhanced with CSS for consistent look */
.chat-mode-btn[title]:hover::after {
    content: attr(title);
    position: absolute;
    top: calc(100% + 6px);
    left: 50%;
    transform: translateX(-50%);
    background: var(--black-bar, #2b2b2b);
    color: #fff;
    padding: 4px 8px;
    border-radius: 4px;
    font-size: 0.65rem;
    font-family: 'Source Sans Pro', sans-serif;
    font-weight: 400;
    white-space: nowrap;
    z-index: 1001;
    pointer-events: none;
    box-shadow: 0 2px 8px rgba(0,0,0,0.3);
}

.chat-header-divider {
    width: 1px;
    height: 16px;
    background: rgba(255,255,255,0.25);
    margin: 0 3px;
}

/* ==========================================================================
   Messages Area
   ========================================================================== */

.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 10px;
    max-height: 260px;
    min-height: 60px;
}

/* Teams-style message rows */
.chat-row {
    display: flex;
    gap: 8px;
    align-items: flex-start;
}

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

.chat-row-user {
    align-self: flex-end;
    justify-content: flex-end;
}

.chat-avatar {
    width: 28px;
    height: 28px;
    border-radius: 50%;
    background: var(--accent-green, #27ae60);
    color: #fff;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.9rem;
    flex-shrink: 0;
    margin-top: 2px;
}

.chat-avatar-user {
    background: var(--text-light, #999999);
}

.chat-msg {
    padding: 10px 14px;
    border-radius: 16px;
    font-size: 0.8rem;
    line-height: 1.5;
    max-width: 85%;
    word-wrap: break-word;
    overflow-wrap: break-word;
    word-break: break-word;
}

.chat-row-bot .chat-msg {
    background: var(--paper-secondary-bg, #f5f5f5);
    color: var(--text-secondary, #333333);
    border-top-left-radius: 4px;
}

.chat-row-user .chat-msg {
    background: var(--accent-green, #27ae60);
    color: #fff;
    border-top-right-radius: 4px;
}

/* Message content typography */
.chat-msg p {
    margin: 0 0 4px 0;
}

.chat-msg p:last-child {
    margin-bottom: 0;
}

.chat-msg ul {
    margin: 4px 0;
    padding-left: 16px;
}

.chat-msg li {
    margin-bottom: 2px;
}

/* Error message — simple styled div (not a chat-row) */
.chat-error {
    padding: 8px 12px;
    border-radius: 12px;
    background: #fef2f2;
    color: #991b1b;
    align-self: center;
    font-style: italic;
    border: 1px solid #fecaca;
    font-size: 0.75rem;
}

[data-color-theme="dark"] .chat-error {
    background: #3a1a1a;
    color: #fca5a5;
    border-color: #5a2a2a;
}

@media (prefers-color-scheme: dark) {
    [data-color-theme="auto"] .chat-error {
        background: #3a1a1a;
        color: #fca5a5;
        border-color: #5a2a2a;
    }
}

/* ==========================================================================
   Navigation Links in Chat Messages
   ========================================================================== */

/* Inline icons in chat messages — compact size to fit bubbles */
.chat-msg .icon-sprite.icon-chat {
    width: 20px;
    height: 20px;
    background-size: auto 20px;
    vertical-align: middle;
    margin-right: 2px;
    border-radius: 3px;
}

.chat-msg .icon-chat.icon-company {
    background-position-x: calc(var(--icon-index, 0) * -20px);
}

.chat-msg .icon-chat.icon-project {
    background-position-x: calc(var(--icon-index, 0) * -20px);
}

.chat-msg .icon-chat.icon-course {
    background-position-x: calc(var(--icon-index, 0) * -20px);
}

.chat-inline-icon {
    width: 20px;
    height: 20px;
    vertical-align: middle;
    margin-right: 2px;
    border-radius: 3px;
    object-fit: contain;
}

.chat-nav-link {
    color: var(--accent-green, #27ae60);
    text-decoration: none;
    font-weight: 600;
    cursor: pointer;
    border-bottom: 1px dotted var(--accent-green, #27ae60);
}

.chat-nav-link:hover {
    color: #1e8c4c;
    border-bottom-style: solid;
}

/* Highlight animation when scrolled to from chat */
.chat-highlight {
    animation: chatHighlight 2s ease;
}

@keyframes chatHighlight {
    0%, 100% { box-shadow: none; }
    20%, 80% { box-shadow: 0 0 0 3px var(--accent-green, #27ae60); border-radius: 4px; }
}

/* ==========================================================================
   Typing Indicator
   ========================================================================== */

.chat-typing {
    display: none;
    align-items: center;
    gap: 4px;
    padding: 6px 14px;
}

.chat-typing.htmx-request {
    display: flex;
}

.chat-typing-dots {
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.chat-status-text {
    font-size: 0.72rem;
    color: var(--accent-green, #27ae60);
    font-style: italic;
    animation: statusPulse 2s ease-in-out infinite;
}

@keyframes statusPulse {
    0%, 100% { opacity: 0.6; }
    50% { opacity: 1; }
}

.chat-typing-dot {
    width: 5px;
    height: 5px;
    border-radius: 50%;
    background: var(--text-light, #999999);
    animation: typingBounce 1.4s infinite ease-in-out both;
}

.chat-typing-dot:nth-child(1) { animation-delay: 0s; }
.chat-typing-dot:nth-child(2) { animation-delay: 0.16s; }
.chat-typing-dot:nth-child(3) { animation-delay: 0.32s; }

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

/* ==========================================================================
   Suggested Question Chips
   ========================================================================== */

.chat-suggestions {
    display: flex;
    gap: 5px;
    padding: 6px 10px;
    overflow-x: auto;
    flex-wrap: wrap;
    border-top: 1px solid var(--border-light, #e0e0e0);
}

.chat-chip {
    flex-shrink: 0;
    background: transparent;
    color: var(--text-muted, #666666);
    border: 1px solid var(--border-light, #e0e0e0);
    border-radius: 14px;
    padding: 3px 10px;
    font-size: 0.68rem;
    font-family: 'Source Sans Pro', sans-serif;
    cursor: pointer;
    transition: all 0.2s ease;
    white-space: nowrap;
    line-height: 1.4;
}

.chat-chip:hover {
    background: var(--accent-green, #27ae60);
    color: #fff;
    border-color: var(--accent-green, #27ae60);
}

/* ==========================================================================
   Input Area
   ========================================================================== */

.chat-input-area {
    display: flex;
    align-items: center;
    gap: 6px;
    padding: 8px 10px;
    border-top: 1px solid var(--border-light, #e0e0e0);
    background: var(--paper-bg, #ffffff);
}

.chat-input {
    flex: 1;
    padding: 7px 12px;
    border: 1px solid var(--border-light, #e0e0e0);
    border-radius: 16px;
    font-size: 0.8rem;
    font-family: 'Source Sans Pro', sans-serif;
    outline: none;
    background: var(--paper-bg, #ffffff);
    color: var(--text-primary, #1a1a1a);
    transition: border-color 0.2s;
}

.chat-input:focus {
    border-color: var(--accent-green, #27ae60);
}

.chat-send-btn {
    background: var(--accent-green, #27ae60);
    color: #fff;
    border: none;
    border-radius: 50%;
    width: 32px;
    height: 32px;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    transition: background 0.2s;
    flex-shrink: 0;
}

.chat-send-btn:hover {
    background: #1e8c4c;
}

/* ==========================================================================
   Help Modal — Fullscreen Accordion
   ========================================================================== */

.chat-help-fullscreen .info-modal-content {
    max-width: 560px;
    max-height: 90vh;
    overflow-y: auto;
}

.chat-help-intro {
    font-size: 0.82rem;
    color: var(--text-muted, #666666);
    line-height: 1.5;
    margin: 0 0 16px 0;
    text-align: center;
}

.chat-help-accordion {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.chat-help-group {
    border: 1px solid var(--border-light, #e0e0e0);
    border-radius: 6px;
    overflow: hidden;
}

.chat-help-group summary {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 10px 14px;
    font-family: 'Quicksand', sans-serif;
    font-size: 0.85rem;
    font-weight: 600;
    color: var(--text-primary, #1a1a1a);
    cursor: pointer;
    background: var(--paper-secondary-bg, #f5f5f5);
    list-style: none;
    transition: background 0.2s;
}

.chat-help-group summary::-webkit-details-marker {
    display: none;
}

.chat-help-group summary::after {
    content: '';
    margin-left: auto;
    width: 6px;
    height: 6px;
    border-right: 2px solid var(--text-muted, #666);
    border-bottom: 2px solid var(--text-muted, #666);
    transform: rotate(-45deg);
    transition: transform 0.2s;
}

.chat-help-group[open] summary::after {
    transform: rotate(45deg);
}

.chat-help-group summary:hover {
    background: var(--paper-bg, #ffffff);
}

.chat-help-group summary iconify-icon {
    font-size: 1.1rem;
    color: var(--accent-green, #27ae60);
}

.chat-help-questions {
    display: flex;
    flex-direction: column;
    padding: 4px 8px 8px;
    gap: 2px;
}

.chat-help-q {
    display: block;
    width: 100%;
    text-align: left;
    background: none;
    border: none;
    padding: 7px 12px;
    font-size: 0.78rem;
    font-family: 'Source Sans Pro', sans-serif;
    color: var(--text-secondary, #333333);
    cursor: pointer;
    border-radius: 4px;
    transition: all 0.15s;
    line-height: 1.4;
}

.chat-help-q:hover {
    background: var(--accent-green, #27ae60);
    color: #fff;
}

.chat-help-footer {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-top: 16px;
    padding: 10px 12px;
    background: var(--paper-secondary-bg, #f5f5f5);
    border-radius: 6px;
    font-size: 0.7rem;
    color: var(--text-muted, #666666);
    line-height: 1.4;
}

.chat-help-footer iconify-icon {
    font-size: 1rem;
    flex-shrink: 0;
    color: var(--text-light, #999999);
}

/* ==========================================================================
   Dark Mode — lighter panel to distinguish from CV background
   ========================================================================== */

[data-color-theme="dark"] .chat-panel {
    background: #2c2c2c;
    border-color: #444;
}

[data-color-theme="dark"] .chat-row-bot .chat-msg {
    background: #383838;
    color: #e0e0e0;
}

[data-color-theme="dark"] .chat-input {
    background: #333;
    border-color: #555;
    color: #e0e0e0;
}

[data-color-theme="dark"] .chat-input-area {
    background: #2c2c2c;
    border-top-color: #444;
}

[data-color-theme="dark"] .chat-suggestions {
    border-top-color: #444;
}

[data-color-theme="dark"] .chat-chip {
    border-color: #555;
    color: #bbb;
}

[data-color-theme="dark"] .chat-nav-link {
    color: #4eca81;
    border-bottom-color: #4eca81;
}

/* Auto dark (system preference) */
@media (prefers-color-scheme: dark) {
    [data-color-theme="auto"] .chat-panel {
        background: #2c2c2c;
        border-color: #444;
    }

    [data-color-theme="auto"] .chat-row-bot .chat-msg {
        background: #383838;
        color: #e0e0e0;
    }

    [data-color-theme="auto"] .chat-input {
        background: #333;
        border-color: #555;
        color: #e0e0e0;
    }

    [data-color-theme="auto"] .chat-input-area {
        background: #2c2c2c;
        border-top-color: #444;
    }

    [data-color-theme="auto"] .chat-suggestions {
        border-top-color: #444;
    }

    [data-color-theme="auto"] .chat-chip {
        border-color: #555;
        color: #bbb;
    }

    [data-color-theme="auto"] .chat-nav-link {
        color: #4eca81;
        border-bottom-color: #4eca81;
    }
}

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

@media (max-width: 480px) {
    /* Default compact: bottom sheet */
    .chat-panel {
        bottom: 0;
        left: 0;
        right: 0;
        width: 100%;
        max-height: 55vh;
        border-radius: 8px 8px 0 0;
    }

    .chat-toggle-btn {
        bottom: 5rem;
        right: 1rem;
    }

    .chat-messages {
        max-height: 180px;
    }

    /* Hide desktop-only layout modes on mobile */
    .chat-mode-btn[data-mode="chat-half"],
    .chat-mode-btn[data-mode="chat-float"],
    .chat-mode-btn[data-mode="chat-full"] {
        display: none;
    }

    /* Show mobile split button */
    .chat-mode-btn[data-mode="chat-split"] {
        display: flex;
    }

    /* Mobile split: CV on top, chat on bottom half */
    .chat-panel.chat-split {
        bottom: 0;
        left: 0;
        right: 0;
        top: auto;
        width: 100%;
        height: 50vh;
        max-height: 50vh;
        border-radius: 8px 8px 0 0;
        border-top: 2px solid var(--accent-green, #27ae60);
    }

    .chat-panel.chat-split .chat-messages {
        max-height: none;
        flex: 1;
    }

    /* Force compact on mobile for desktop-only modes (safety) */
    .chat-panel.chat-half,
    .chat-panel.chat-float,
    .chat-panel.chat-full {
        bottom: 0;
        left: 0;
        right: 0;
        top: auto;
        width: 100%;
        height: auto;
        max-height: 55vh;
        border-radius: 8px 8px 0 0;
        border: 1px solid var(--border-light, #e0e0e0);
        resize: none;
    }

    /* Wave position follows mobile button */
    .chat-wave {
        bottom: calc(5rem + 38px);
        right: calc(1rem + 38px);
    }

    /* Tooltips: prevent overflow on mobile */
    .chat-mode-btn[title]:hover::after {
        display: none;
    }

    /* Tighter header on mobile */
    .chat-header {
        padding: 8px 10px;
        font-size: 0.8rem;
    }

    .chat-mode-btn {
        font-size: 0.85rem;
        padding: 3px;
    }
}

/* Hide mobile split button on desktop */
@media (min-width: 481px) {
    .chat-mode-btn[data-mode="chat-split"] {
        display: none;
    }
}