/**
 * RE::DACT Chat Styles
 * 
 * This file contains:
 * - Chat container
 * - Mode tabs
 * - Chat messages (user/AI)
 * - Streaming/loading indicators
 * - Message actions
 * - Chat input
 * - Chat peek bar (mobile)
 * - Voice input button
 * - File upload button
 */

/* --- CHAT CONTAINER --- */
.chat {
    display: flex;
    flex-direction: column;
    height: 320px;
    border-top: 1px solid var(--color-border-light);
    background: var(--color-bg-secondary);
    flex-shrink: 0;
    position: relative;
}

.chat-resizer {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 8px;
    cursor: ns-resize;
    background: transparent;
    z-index: 10;
}

/* --- MODE TABS --- */
.chat-tabs {
    display: flex;
    gap: 6px;
    padding: 6px 16px;
    background: var(--color-bg-primary);
    flex-shrink: 0;
    flex-wrap: wrap;
    align-items: center;
    position: relative;
}

.tab {
    padding: 4px 14px;
    background: transparent;
    border: none;
    border-radius: 99px;
    cursor: pointer;
    color: var(--color-text-tertiary);
    font-weight: 400;
    font-size: 11px;
    box-shadow: 0 1px 3px rgba(var(--color-overlay-dark), 0.08);
}

.tab.active {
    background: var(--color-accent);
    color: white;
    box-shadow: 0 2px 4px rgba(var(--color-overlay-dark), 0.15);
}

.tab.pro-only {
    background: linear-gradient(135deg, #FFD700, #FFA500);
    color: var(--color-text-primary);
    font-weight: 600;
}

.tab.pro-only:hover {
    background: linear-gradient(135deg, #FFC700, #FF9500);
}

.tab.pro-only.active {
    background: linear-gradient(135deg, #FFD700, #FFA500);
    color: var(--color-text-primary);
    box-shadow: 0 2px 8px rgba(255,165,0,0.4);
}

/* --- MODE HINTS --- */
.mode-hint {
    display: none;
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-accent);
    color: rgba(var(--color-overlay-light), 0.7);
    font-size: 8px;
    font-weight: 400;
    font-family: var(--font-sans);
    letter-spacing: 0.02em;
    z-index: 5;
    justify-content: flex-start;
    align-items: center;
    padding-left: 16px;
    opacity: 0;
    transition: opacity 0.3s ease;
    pointer-events: none;
}

.mode-hint.visible {
    opacity: 1;
}

.chat-peek-bar:has(.mode-hint.visible) .chat-peek-content {
    opacity: 0;
}

.mode-hint-desktop {
    margin-left: 12px;
    font-size: 11px;
    font-style: italic;
    color: var(--color-text-tertiary);
    opacity: 0;
    transition: opacity 0.3s ease;
    white-space: nowrap;
    flex-shrink: 0;
}

.mode-hint-desktop.visible {
    opacity: 1;
}

/* --- CHAT MESSAGES --- */
.chat-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

/* Scroll anchoring - prevents content jumping during streaming */
.chat-messages * {
    overflow-anchor: none;
}

.chat-messages .scroll-anchor {
    overflow-anchor: auto;
    height: 1px;
}

/* Message bubbles */
.msg {
    max-width: 85%;
    padding: 8px 12px;
    line-height: 1.65;
    position: relative;
    word-wrap: break-word;
    border-radius: 12px;
    font-size: 14px;
    box-shadow: 0 2px 4px rgba(var(--color-overlay-dark), 0.08);
}

.msg p {
    margin: 0 0 0.5em 0;
    text-align: left;
}

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

/* --- Markdown rendered content inside AI messages --- */
.msg.ai p {
    margin: 0 0 1.2em 0;
}

.msg.ai > *:first-child,
.msg.ai .typewriter-content > *:first-child {
    margin-top: 0;
}

.msg.ai > *:last-child,
.msg.ai .typewriter-content > *:last-child {
    margin-bottom: 0;
}

.msg.ai h1, .msg.ai h2, .msg.ai h3, .msg.ai h4, .msg.ai h5, .msg.ai h6 {
    margin: 1.4em 0 0.5em 0;
    line-height: 1.3;
    font-weight: 600;
}

.msg.ai h1 { font-size: 1.3em; }
.msg.ai h2 { font-size: 1.2em; }
.msg.ai h3 { font-size: 1.1em; }
.msg.ai h4, .msg.ai h5, .msg.ai h6 { font-size: 1em; }

.msg.ai strong, .msg.ai b {
    font-weight: 600;
}

.msg.ai em, .msg.ai i {
    font-style: italic;
}

.msg.ai ul, .msg.ai ol {
    margin: 0.8em 0 1.2em 0;
    padding-left: 1.4em;
}

.msg.ai li {
    margin-bottom: 0.4em;
}

/* Top-level list items with nested sub-lists get section spacing */
.msg.ai li > ul,
.msg.ai li > ol {
    margin-top: 0.2em;
    margin-bottom: 0.2em;
}

.msg.ai > ol > li,
.msg.ai > ul > li,
.msg.ai .typewriter-content > ol > li,
.msg.ai .typewriter-content > ul > li {
    margin-bottom: 1em;
    padding-bottom: 0.2em;
}

.msg.ai > ol > li:last-child,
.msg.ai > ul > li:last-child,
.msg.ai .typewriter-content > ol > li:last-child,
.msg.ai .typewriter-content > ul > li:last-child {
    margin-bottom: 0;
    padding-bottom: 0;
}

.msg.ai blockquote {
    margin: 0.5em 0;
    padding: 0.4em 0.8em;
    border-left: 3px solid var(--color-accent, #6366f1);
    background: rgba(var(--color-overlay-dark, 0,0,0), 0.03);
    border-radius: 0 4px 4px 0;
}

.msg.ai blockquote p {
    margin: 0;
}

.msg.ai code {
    font-family: 'IBM Plex Mono', 'JetBrains Mono', monospace;
    font-size: 0.88em;
    background: rgba(var(--color-overlay-dark, 0,0,0), 0.06);
    padding: 0.15em 0.35em;
    border-radius: 3px;
}

.msg.ai pre {
    margin: 0.5em 0;
    padding: 0.7em 0.9em;
    background: rgba(var(--color-overlay-dark, 0,0,0), 0.06);
    border-radius: 6px;
    overflow-x: auto;
    font-size: 0.88em;
    line-height: 1.45;
}

.msg.ai pre code {
    background: none;
    padding: 0;
    font-size: inherit;
}

.msg.ai hr {
    border: none;
    border-top: 1px solid var(--color-border-light, #e5e7eb);
    margin: 0.8em 0;
}

.msg.ai table {
    border-collapse: collapse;
    margin: 0.5em 0;
    font-size: 0.92em;
    width: 100%;
}

.msg.ai th, .msg.ai td {
    border: 1px solid var(--color-border-light, #e5e7eb);
    padding: 0.35em 0.6em;
    text-align: left;
}

.msg.ai th {
    font-weight: 600;
    background: rgba(var(--color-overlay-dark, 0,0,0), 0.04);
}

.msg.ai a {
    color: var(--color-accent, #6366f1);
    text-decoration: none;
}

.msg.ai a:hover {
    text-decoration: underline;
}

.msg.user {
    align-self: flex-end;
    background: var(--color-accent);
    color: var(--color-accent-text);
    border-bottom-right-radius: 4px;
    padding: 6px 12px;
}

.msg.user p {
    text-align: left;
    margin-bottom: 0;
}

.msg.ai {
    align-self: flex-start;
    background: var(--color-bg-paper-main);
    border: 1px solid var(--color-border-light);
    border-bottom-left-radius: 4px;
    box-shadow: 0 1px 2px rgba(var(--color-overlay-dark), 0.04);
    padding: 12px 18px;
    overflow: hidden;
}

/* --- TYPEWRITER CONTENT --- */
.typewriter-content {
    display: block;
}

.typewriter-cursor {
    display: inline;
    color: var(--color-accent);
    font-weight: 300;
    animation: cursorBlink 0.8s ease-in-out infinite;
}

@keyframes cursorBlink {
    0%, 50% { opacity: 1; }
    51%, 100% { opacity: 0; }
}

.msg.ai.streaming .typewriter-cursor {
    animation: cursorBlink 0.5s ease-in-out infinite;
}

/* --- LOADING INDICATOR with Mini Letter Vortex --- */
.msg.loading {
    background: transparent !important;
    border: none !important;
    box-shadow: none !important;
    padding: 12px 0;
    display: flex;
    align-items: center;
    gap: 16px;
    border-radius: 0;
}

/* =============================================================================
   MINI VORTEX - Based on LetterVortexMini.jsx
   Complete keyframes for all states: idle, listening, thinking, speaking, executing
   ============================================================================= */

/* Keyframes - orbit (idle state) */
@keyframes mvOrbit {
    from {
        transform: translate(-50%, -50%) rotate(var(--angle)) translateX(var(--radius)) rotate(calc(-1 * var(--angle)));
    }
    to {
        transform: translate(-50%, -50%) rotate(calc(var(--angle) + 360deg)) translateX(var(--radius)) rotate(calc(-1 * var(--angle) - 360deg));
    }
}

/* Spiral in (listening state) */
@keyframes mvSpiralIn {
    0%, 100% {
        transform: translate(-50%, -50%) rotate(var(--angle)) translateX(var(--radius)) scale(1);
        opacity: 1;
    }
    50% {
        transform: translate(-50%, -50%) rotate(calc(var(--angle) + 180deg)) translateX(calc(var(--radius) * 0.4)) scale(0.7);
        opacity: 0.5;
    }
}

/* Chaos (thinking state) */
@keyframes mvChaos {
    0%, 100% {
        transform: translate(calc(-50% + var(--x)), calc(-50% + var(--y))) rotate(0deg);
    }
    25% {
        transform: translate(calc(-50% + var(--x) + 2px), calc(-50% + var(--y) - 1px)) rotate(15deg);
    }
    50% {
        transform: translate(calc(-50% + var(--x) - 1px), calc(-50% + var(--y) + 2px)) rotate(-12deg);
    }
    75% {
        transform: translate(calc(-50% + var(--x) + 1px), calc(-50% + var(--y) - 2px)) rotate(8deg);
    }
}

/* Burst out (speaking state) */
@keyframes mvBurstOut {
    0% {
        transform: translate(-50%, -50%) rotate(var(--angle)) translateX(var(--startRadius, 3px)) scale(1);
        opacity: 1;
    }
    100% {
        transform: translate(-50%, -50%) rotate(var(--angle)) translateX(var(--endRadius, 8px)) scale(0.15);
        opacity: 0;
    }
}

/* Pupil breath (normal) */
@keyframes mvPupilBreath {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.3); }
}

/* Pupil pulse (thinking state) */
@keyframes mvPupilPulse {
    0%, 100% { transform: translate(-50%, -50%) scale(1); }
    50% { transform: translate(-50%, -50%) scale(1.6); }
}

/* Spin (executing ring) */
@keyframes mvSpin {
    from { transform: translate(-50%, -50%) rotate(0deg); }
    to { transform: translate(-50%, -50%) rotate(360deg); }
}

/* Mist pulse */
@keyframes mvMistPulse {
    0%, 100% { opacity: 1; transform: scale(1); }
    50% { opacity: 0.7; transform: scale(1.05); }
}

/* Ripple wobble */
@keyframes mvRippleWobble {
    0% {
        transform: scale(0.3) rotate(0deg);
        opacity: 1;
        border-radius: 50% 47% 52% 48% / 48% 51% 49% 52%;
    }
    25% {
        transform: scale(1.5) rotate(25deg);
        opacity: 0.8;
        border-radius: 47% 52% 48% 51% / 52% 48% 51% 47%;
    }
    50% {
        transform: scale(2.8) rotate(55deg);
        opacity: 0.5;
        border-radius: 52% 48% 47% 53% / 47% 52% 48% 53%;
    }
    75% {
        transform: scale(4) rotate(90deg);
        opacity: 0.25;
        border-radius: 48% 51% 53% 47% / 51% 47% 52% 48%;
    }
    100% {
        transform: scale(5) rotate(120deg);
        opacity: 0;
        border-radius: 51% 48% 52% 49% / 49% 52% 47% 51%;
    }
}

/* Particle float */
@keyframes mvParticleFloat {
    0% {
        transform: translate(-50%, -50%) rotate(var(--angle)) translateX(2px);
        opacity: 1;
    }
    25% {
        transform: translate(-50%, -50%) rotate(calc(var(--angle) + 25deg)) translateX(calc(var(--endDist) * 0.3));
        opacity: 0.8;
    }
    50% {
        transform: translate(-50%, -50%) rotate(calc(var(--angle) + 55deg)) translateX(calc(var(--endDist) * 0.56));
        opacity: 0.5;
    }
    75% {
        transform: translate(-50%, -50%) rotate(calc(var(--angle) + 90deg)) translateX(calc(var(--endDist) * 0.8));
        opacity: 0.25;
    }
    100% {
        transform: translate(-50%, -50%) rotate(calc(var(--angle) + 120deg)) translateX(var(--endDist));
        opacity: 0;
    }
}

/* Smoke drift */
@keyframes mvSmokeDrift {
    0%, 100% { transform: scale(1) rotate(0deg); opacity: 1; }
    33% { transform: scale(1.1) rotate(5deg); opacity: 0.8; }
    66% { transform: scale(0.95) rotate(-3deg); opacity: 0.9; }
}

/* Backflow */
@keyframes mvBackflow {
    0%, 100% { transform: scale(1.2) rotate(0deg); opacity: 0.3; }
    50% { transform: scale(0.8) rotate(-10deg); opacity: 0.7; }
}

/* Turbulence */
@keyframes mvTurbulence {
    0%, 100% {
        transform: translate(-50%, -50%) scale(1) rotate(0deg);
        opacity: 0.6;
        border-radius: 40% 60% 55% 45% / 55% 45% 60% 40%;
    }
    25% {
        transform: translate(-50%, -50%) scale(1.3) rotate(90deg);
        opacity: 0.3;
        border-radius: 55% 45% 40% 60% / 45% 55% 45% 55%;
    }
    50% {
        transform: translate(-50%, -50%) scale(0.8) rotate(180deg);
        opacity: 0.8;
        border-radius: 60% 40% 45% 55% / 40% 60% 55% 45%;
    }
    75% {
        transform: translate(-50%, -50%) scale(1.1) rotate(270deg);
        opacity: 0.4;
        border-radius: 45% 55% 60% 40% / 60% 40% 40% 60%;
    }
}

/* Loading text - ephemeral gray (not accent) */
.loading-text {
    color: var(--color-text-secondary, #888);
    font-family: 'Inter', -apple-system, sans-serif;
    font-size: 13px;
    font-weight: 400;
}

/* --- MESSAGE ACTIONS --- */
/* Ensure all chat messages can contain absolutely positioned actions */
.chat-message,
.msg {
    position: relative;
}

.msg-actions {
    position: absolute;
    bottom: 6px;
    right: 6px;
    display: flex;
    gap: 2px;
    opacity: 0.4;
    transition: opacity 0.15s;
}

.msg:hover .msg-actions,
.chat-message:hover .msg-actions {
    opacity: 1;
}

.msg-action-btn {
    background: transparent;
    border: none;
    border-radius: 4px;
    padding: 4px;
    cursor: pointer;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: rgba(var(--color-overlay-dark), 0.5);
}

.msg-action-btn:hover {
    background: rgba(var(--color-overlay-dark), 0.08);
    color: rgba(var(--color-overlay-dark), 0.8);
}

.msg-action-btn svg {
    width: 16px;
    height: 16px;
    stroke: currentColor;
}

.msg-action-btn.feedback-btn {
    color: var(--color-text-tertiary);
}

.msg-action-btn.feedback-btn:hover {
    color: var(--color-text-primary);
}

.msg-action-btn.feedback-btn.active-positive {
    color: var(--color-accent);
    background: rgba(var(--color-overlay-dark), 0.06);
    border-color: var(--color-accent);
}

.msg-action-btn.feedback-btn.active-negative {
    color: #ef4444;
    background: rgba(239,68,68,0.1);
    border-color: #ef4444;
}

.msg-action-btn.feedback-btn.disabled {
    opacity: 0.3;
    cursor: not-allowed;
    pointer-events: none;
}

/* Thumbs active state */
.msg-action-btn.active {
    color: var(--color-accent);
    background: rgba(var(--color-overlay-dark), 0.08);
    border-color: var(--color-accent);
}

.msg-action-btn[title="Bad response"].active {
    color: #ef4444;
    background: rgba(239,68,68,0.15);
    border-color: #ef4444;
}

.msg-copy-btn {
    position: absolute;
    top: 8px;
    right: 8px;
    background: rgba(var(--color-overlay-light), 0.9);
    border: 1px solid var(--color-border);
    border-radius: 6px;
    padding: 4px;
    cursor: pointer;
    opacity: 0;
    width: 26px;
    height: 26px;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.15s;
}

.msg:hover .msg-copy-btn {
    opacity: 1;
}

/* --- CHAT INPUT --- */
.chat-input {
    display: flex;
    gap: 12px;
    padding: 20px;
    background: var(--color-bg-primary);
    border-top: 1px solid var(--color-border-light);
}

.chat-input button {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--color-accent);
    color: white;
    border: none;
    border-radius: 50%;
    cursor: pointer;
}

.chat-input-wrapper {
    flex: 1;
    position: relative;
    display: flex;
    align-items: flex-end;
}

.chat-input-wrapper input {
    flex: 1;
    padding: 10px 16px;
    border: 1px solid var(--color-border);
    border-radius: 99px;
    outline: none;
    font-size: 14px;
    background: var(--color-bg-primary);
}

/* --- VOICE INPUT BUTTON --- */
.voice-input-btn {
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: transparent;
    border: none;
    border-radius: 50%;
    cursor: pointer;
    color: var(--color-text-tertiary);
    -webkit-tap-highlight-color: rgba(var(--color-overlay-dark), 0.1);
    touch-action: manipulation;
    flex-shrink: 0;
}

.voice-input-btn:active {
    background: rgba(var(--color-overlay-dark), 0.05);
}

.voice-input-btn.recording {
    background: white;
    color: #111;
    box-shadow: 0 0 0 2px rgba(0,0,0,0.1);
}

.voice-input-btn.recording svg {
    fill: #111;
    animation: bars-pulse 1s ease-in-out infinite;
}

@keyframes bars-pulse {
    0%, 100% { opacity: 1; transform: scaleY(1); }
    50% { opacity: 0.5; transform: scaleY(0.7); }
}

.voice-input-btn svg {
    width: 22px;
    height: 22px;
}

/* --- FILE UPLOAD BUTTON (RE::VIEW) --- */
.file-upload-btn {
    position: absolute;
    right: 44px;
    bottom: 2px; 
    width: 36px;
    height: 36px;
    display: flex;
    align-items: center;
    justify-content: center; 
    background: transparent;
    border: none;
    border-radius: 50%; 
    cursor: pointer;
    color: var(--color-text-tertiary);
    -webkit-tap-highlight-color: rgba(var(--color-overlay-dark), 0.1);
    touch-action: manipulation;
}

.file-upload-btn:active {
    background: rgba(var(--color-overlay-dark), 0.05);
}

.file-upload-btn.has-file {
    color: var(--color-accent);
}

.file-upload-btn svg {
    width: 18px;
    height: 18px;
}

/* --- CHAT PEEK BAR (Mobile) --- */
.chat-peek-bar {
    height: 52px;
    min-height: 52px;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    cursor: pointer;
    background: var(--color-accent) !important;
    color: var(--color-accent-text);
    transition: all 0.2s ease;
    z-index: 10;
    position: relative;
}

.chat-peek-bar:hover {
    background: var(--color-accent-hover) !important;
}

.chat-peek-bar:active {
    transform: scale(0.98);
}

.chat-peek-content {
    color: var(--color-accent-text);
    font-size: 14px;
    font-weight: 500;
    display: flex;
    align-items: center;
    gap: 8px;
}

.chat-peek-content::before {
    content: '';
    width: 18px;
    height: 18px;
    background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' viewBox='0 0 24 24' fill='none' stroke='white' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='M21 15a2 2 0 0 1-2 2H7l-4 4V5a2 2 0 0 1 2-2h14a2 2 0 0 1 2 2z'%3E%3C/path%3E%3C/svg%3E");
    background-size: contain;
    background-repeat: no-repeat;
}

.chat.open .chat-peek-bar {
    height: 12px;
    min-height: 12px;
    background: var(--color-accent) !important;
}

.chat.open .chat-peek-content {
    display: none;
}

/* Source links in AI responses */
.source-link {
    color: var(--accent-color, #4da6ff);
    text-decoration: underline;
    text-decoration-color: rgba(77, 166, 255, 0.4);
    transition: all 0.2s ease;
}

.source-link:hover {
    color: var(--accent-hover, #7dbfff);
    text-decoration-color: var(--accent-hover, #7dbfff);
}

.source-link:visited {
    color: #9d7dff;
}

/* Sources section at bottom of response */
.chat-message hr {
    border: none;
    border-top: 1px solid var(--border-color, #333);
    margin: 1em 0;
}

/* --- ATTACH BUTTON --- */
.attach-container {
    position: relative;
}

.attach-btn {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    border: none;
    background: var(--color-accent);
    color: var(--color-accent-text);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 1px 3px rgba(var(--color-overlay-dark), 0.08);
}

.attach-btn:hover {
    background: var(--color-accent-hover);
}

.attach-btn svg {
    width: 18px;
    height: 18px;
}

.attach-menu {
    position: absolute;
    bottom: calc(100% + 8px);
    left: 0;
    background: var(--color-accent);
    border-radius: 20px;
    padding: 4px 8px;
    display: none;
    flex-direction: row;
    gap: 4px;
    z-index: 100;
}

.attach-menu.open {
    display: flex;
}

.attach-icon-btn {
    width: 32px;
    height: 32px;
    border: none;
    background: transparent;
    border-radius: 50%;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--color-accent-text);
}

.attach-icon-btn:hover {
    background: rgba(var(--color-overlay-light), 0.2);
}

.attach-icon-btn svg {
    width: 18px;
    height: 18px;
}

/* --- ATTACHMENT BADGE (above input) --- */
.attachment-badge {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 4px 10px;
    margin: 0 12px 4px;
    background: var(--color-bg-secondary);
    border: 1px solid var(--color-border-light);
    border-radius: 8px;
    font-size: 12px;
    color: var(--color-text-secondary);
    max-width: 50%;
}

.attachment-badge svg.attachment-badge-icon {
    stroke: var(--color-accent);
    flex-shrink: 0;
}

.attachment-badge-name {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.attachment-badge-remove {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--color-text-muted);
    font-size: 16px;
    padding: 0 2px;
    line-height: 1;
}

.attachment-badge-remove:hover {
    color: var(--color-text-primary);
}

/* --- ATTACHMENT LINE (inside user message bubble) --- */
.msg-attachment {
    display: flex;
    align-items: center;
    gap: 4px;
    font-size: 11px;
    opacity: 0.8;
    margin-bottom: 4px;
    padding-bottom: 4px;
    border-bottom: 1px solid rgba(255,255,255,0.2);
}

.msg-attachment svg {
    width: 12px;
    height: 12px;
    stroke: currentColor;
    flex-shrink: 0;
}