/* ============================================================
   RAG CHAT WIDGET — chat.css
   Matches portfolio design: #0b1220 bg, purple/cyan accent,
   Fira Code monospace, glassmorphism cards
   ============================================================ */

/* ── Floating trigger button ── */
#rag-trigger {
    position: fixed;
    bottom: 32px;
    right: 32px;
    z-index: 9000;
    width: 60px;
    height: 60px;
    border-radius: 50%;
    border: none;
    cursor: pointer;
    background: linear-gradient(135deg, rgba(124,92,255,1), rgba(39,195,255,1));
    box-shadow: 0 8px 32px rgba(124,92,255,0.45), 0 0 0 0 rgba(124,92,255,0.3);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
    animation: trigger-pulse 3s ease-in-out infinite;
}

#rag-trigger:hover {
    transform: scale(1.1);
    box-shadow: 0 12px 40px rgba(124,92,255,0.6), 0 0 0 8px rgba(124,92,255,0.1);
    animation: none;
}

#rag-trigger svg {
    width: 26px;
    height: 26px;
    color: #fff;
    transition: transform 0.3s ease;
}

#rag-trigger.open svg.icon-chat   { display: none; }
#rag-trigger.open svg.icon-close  { display: block !important; }
#rag-trigger svg.icon-close       { display: none; }

@keyframes trigger-pulse {
    0%,100% { box-shadow: 0 8px 32px rgba(124,92,255,.45), 0 0 0 0 rgba(124,92,255,.3); }
    50%      { box-shadow: 0 8px 32px rgba(124,92,255,.45), 0 0 0 10px rgba(124,92,255,0); }
}

/* ── Tooltip on trigger ── */
#rag-trigger::before {
    content: 'Ask me anything';
    position: absolute;
    right: 70px;
    top: 50%;
    transform: translateY(-50%);
    background: rgba(11,18,32,0.95);
    color: rgba(255,255,255,0.85);
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 11px;
    letter-spacing: 0.5px;
    padding: 7px 14px;
    border-radius: 6px;
    border: 1px solid rgba(124,92,255,0.3);
    white-space: nowrap;
    opacity: 0;
    pointer-events: none;
    transition: opacity 0.2s;
}
#rag-trigger:hover::before { opacity: 1; }

/* ── Main widget container ── */
#rag-widget {
    position: fixed;
    bottom: 108px;
    right: 32px;
    z-index: 8999;
    width: 420px;
    max-height: 680px;
    display: flex;
    flex-direction: column;
    background: rgba(11,18,32,0.97);
    border: 1px solid rgba(255,255,255,0.12);
    border-radius: 16px;
    box-shadow: 0 24px 80px rgba(0,0,0,0.6), 0 0 0 1px rgba(124,92,255,0.12);
    overflow: hidden;
    transform: translateY(16px) scale(0.97);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.35s cubic-bezier(0.4,0,0.2,1),
                opacity 0.35s cubic-bezier(0.4,0,0.2,1);
    backdrop-filter: blur(20px);
}

#rag-widget::before {
    content: '';
    position: absolute;
    top: 0; left: 0; right: 0;
    height: 2px;
    background: linear-gradient(90deg, rgba(124,92,255,1), rgba(39,195,255,1));
}

#rag-widget.open {
    transform: translateY(0) scale(1);
    opacity: 1;
    pointer-events: all;
}

/* ── Header ── */
#rag-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
    flex-shrink: 0;
    background: rgba(255,255,255,0.03);
}

.rag-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.rag-avatar {
    width: 36px;
    height: 36px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(124,92,255,0.3), rgba(39,195,255,0.3));
    border: 1px solid rgba(124,92,255,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 16px;
    flex-shrink: 0;
    position: relative;
}

.rag-avatar::after {
    content: '';
    position: absolute;
    bottom: 1px;
    right: 1px;
    width: 9px;
    height: 9px;
    border-radius: 50%;
    background: #22c55e;
    border: 2px solid rgba(11,18,32,0.97);
    box-shadow: 0 0 6px rgba(34,197,94,0.6);
}

.rag-title {
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 13px;
    font-weight: 600;
    color: rgba(255,255,255,0.92);
    line-height: 1.2;
}

.rag-subtitle {
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 9px;
    letter-spacing: 2px;
    color: rgba(255,255,255,0.35);
    text-transform: uppercase;
    margin-top: 2px;
}

.rag-header-right {
    display: flex;
    align-items: center;
    gap: 6px;
}

/* Mode toggle */
.rag-mode-toggle {
    display: flex;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 8px;
    padding: 3px;
    gap: 2px;
}

.rag-mode-btn {
    width: 30px;
    height: 28px;
    border-radius: 6px;
    border: none;
    background: transparent;
    cursor: pointer;
    color: rgba(255,255,255,0.4);
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
}
.rag-mode-btn svg { width: 14px; height: 14px; }
.rag-mode-btn:hover { color: rgba(255,255,255,0.7); }
.rag-mode-btn.active {
    background: linear-gradient(135deg, rgba(124,92,255,0.4), rgba(39,195,255,0.4));
    color: #fff;
}

/* ── Mode panels ── */
#rag-body { flex: 1; overflow: hidden; display: flex; flex-direction: column; }

/* TEXT CHAT */
#rag-chat-panel {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#rag-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 14px;
    scrollbar-width: thin;
    scrollbar-color: rgba(124,92,255,0.3) transparent;
}
#rag-messages::-webkit-scrollbar { width: 3px; }
#rag-messages::-webkit-scrollbar-thumb { background: rgba(124,92,255,0.3); border-radius: 2px; }

/* suggestion chips */
.rag-suggestions {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    padding: 0 16px 14px;
    flex-shrink: 0;
}

.rag-chip {
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 10px;
    padding: 6px 12px;
    border-radius: 20px;
    border: 1px solid rgba(124,92,255,0.35);
    background: rgba(124,92,255,0.08);
    color: rgba(255,255,255,0.65);
    cursor: pointer;
    transition: all 0.2s;
    white-space: nowrap;
}
.rag-chip:hover {
    background: rgba(124,92,255,0.2);
    border-color: rgba(124,92,255,0.6);
    color: rgba(255,255,255,0.9);
}

/* messages */
.rag-msg {
    display: flex;
    flex-direction: column;
    gap: 4px;
    animation: msg-in 0.3s ease;
}
@keyframes msg-in {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: none; }
}

.rag-msg.user  { align-items: flex-end; }
.rag-msg.bot   { align-items: flex-start; }

.rag-msg-who {
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 8px;
    letter-spacing: 2px;
    color: rgba(255,255,255,0.3);
    text-transform: uppercase;
    padding: 0 4px;
}

.rag-msg-bubble {
    max-width: 86%;
    padding: 11px 15px;
    border-radius: 12px;
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 12.5px;
    line-height: 1.7;
    font-weight: 400;
}

.rag-msg.user .rag-msg-bubble {
    background: linear-gradient(135deg, rgba(124,92,255,0.25), rgba(39,195,255,0.2));
    border: 1px solid rgba(124,92,255,0.3);
    border-bottom-right-radius: 3px;
    color: rgba(255,255,255,0.9);
}

.rag-msg.bot .rag-msg-bubble {
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-bottom-left-radius: 3px;
    color: rgba(255,255,255,0.85);
}

/* typing indicator */
.rag-typing {
    display: flex;
    gap: 5px;
    align-items: center;
    padding: 12px 16px;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 12px;
    border-bottom-left-radius: 3px;
    width: fit-content;
}
.rag-typing span {
    width: 5px; height: 5px;
    border-radius: 50%;
    background: linear-gradient(135deg, rgba(124,92,255,1), rgba(39,195,255,1));
    animation: rag-dot 1.1s ease-in-out infinite;
}
.rag-typing span:nth-child(2) { animation-delay: .18s; }
.rag-typing span:nth-child(3) { animation-delay: .36s; }
@keyframes rag-dot {
    0%,60%,100% { transform: translateY(0); opacity: 0.3; }
    30%          { transform: translateY(-6px); opacity: 1; }
}

/* input area */
#rag-input-area {
    padding: 12px 16px 14px;
    border-top: 1px solid rgba(255,255,255,0.08);
    flex-shrink: 0;
}

#rag-input-wrap {
    display: flex;
    gap: 8px;
    align-items: flex-end;
    background: rgba(255,255,255,0.05);
    border: 1px solid rgba(255,255,255,0.1);
    border-radius: 10px;
    padding: 9px 10px;
    transition: border-color 0.2s, box-shadow 0.2s;
}
#rag-input-wrap:focus-within {
    border-color: rgba(124,92,255,0.5);
    box-shadow: 0 0 0 3px rgba(124,92,255,0.08);
}

#rag-input {
    flex: 1;
    background: transparent;
    border: none;
    outline: none;
    color: rgba(255,255,255,0.9);
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 12px;
    line-height: 1.5;
    resize: none;
    max-height: 100px;
    scrollbar-width: none;
    caret-color: rgba(124,92,255,1);
}
#rag-input::placeholder { color: rgba(255,255,255,0.25); }

#rag-send {
    width: 34px;
    height: 34px;
    flex-shrink: 0;
    border-radius: 8px;
    border: none;
    background: linear-gradient(135deg, rgba(124,92,255,1), rgba(39,195,255,1));
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: all 0.2s;
    box-shadow: 0 4px 14px rgba(124,92,255,0.4);
}
#rag-send:hover { transform: scale(1.06); box-shadow: 0 6px 20px rgba(124,92,255,0.55); }
#rag-send svg { width: 14px; height: 14px; }

/* ── VOICE PANEL ── */
#rag-voice-panel {
    display: none;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex: 1;
    padding: 32px 24px;
    gap: 20px;
    min-height: 340px;
}
#rag-voice-panel.active { display: flex; }
#rag-chat-panel.hidden   { display: none; }

/* voice orb */
.rag-voice-orb {
    width: 110px;
    height: 110px;
    border-radius: 50%;
    background: radial-gradient(circle at 38% 35%,
        rgba(124,92,255,0.3) 0%,
        rgba(39,195,255,0.2) 50%,
        rgba(124,92,255,0.05) 100%);
    border: 1px solid rgba(124,92,255,0.35);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all 0.3s;
    position: relative;
    box-shadow: 0 0 40px rgba(124,92,255,0.15);
}
.rag-voice-orb::before {
    content: '';
    position: absolute;
    inset: -10px;
    border-radius: 50%;
    border: 1px solid rgba(124,92,255,0.15);
    animation: orb-ring 3s ease-in-out infinite;
}
.rag-voice-orb::after {
    content: '';
    position: absolute;
    inset: -22px;
    border-radius: 50%;
    border: 1px solid rgba(39,195,255,0.08);
    animation: orb-ring 3s ease-in-out infinite 0.6s;
}
@keyframes orb-ring {
    0%,100% { transform: scale(1); opacity: 0.6; }
    50%      { transform: scale(1.05); opacity: 1; }
}

.rag-voice-orb:hover {
    box-shadow: 0 0 60px rgba(124,92,255,0.35);
    border-color: rgba(124,92,255,0.6);
}

.rag-voice-orb.listening {
    border-color: rgba(39,195,255,0.7);
    box-shadow: 0 0 60px rgba(39,195,255,0.3), 0 0 120px rgba(39,195,255,0.1);
    animation: listen-pulse 1s ease-in-out infinite;
}
@keyframes listen-pulse {
    0%,100% { transform: scale(1); }
    50%      { transform: scale(1.05); }
}

.rag-voice-orb svg {
    width: 38px;
    height: 38px;
    color: rgba(255,255,255,0.8);
    position: relative;
    z-index: 1;
    transition: color 0.3s;
}
.rag-voice-orb.listening svg { color: rgba(39,195,255,1); }

.rag-voice-hint {
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 10px;
    letter-spacing: 2.5px;
    text-transform: uppercase;
    color: rgba(255,255,255,0.35);
    text-align: center;
}

.rag-voice-transcript {
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 13px;
    font-style: italic;
    color: rgba(255,255,255,0.75);
    text-align: center;
    min-height: 20px;
    line-height: 1.6;
    max-width: 300px;
}

.rag-voice-answer {
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 11.5px;
    color: rgba(255,255,255,0.5);
    text-align: center;
    line-height: 1.75;
    max-height: 120px;
    overflow-y: auto;
    scrollbar-width: none;
    max-width: 340px;
}

/* ── Evidence strip ── */
#rag-evidence {
    border-top: 1px solid rgba(255,255,255,0.06);
    padding: 10px 16px;
    flex-shrink: 0;
    max-height: 110px;
    overflow-y: auto;
    scrollbar-width: none;
    display: none;
}
#rag-evidence.has-items { display: block; }

.rag-ev-label {
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 8px;
    letter-spacing: 3px;
    color: rgba(255,255,255,0.2);
    text-transform: uppercase;
    margin-bottom: 7px;
}

.rag-ev-item {
    display: flex;
    gap: 10px;
    align-items: center;
    padding: 5px 0;
    border-bottom: 1px solid rgba(255,255,255,0.04);
    font-size: 10px;
}
.rag-ev-item:last-child { border-bottom: none; }

.rag-ev-score {
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    font-size: 8px;
    padding: 2px 6px;
    border-radius: 3px;
    background: rgba(124,92,255,0.12);
    color: rgba(124,92,255,0.9);
    flex-shrink: 0;
    min-width: 30px;
    text-align: center;
}
.rag-ev-text {
    color: rgba(255,255,255,0.35);
    font-size: 10px;
    font-family: 'Fira Code', 'JetBrains Mono', monospace;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.rag-ev-src {
    font-size: 8px;
    color: rgba(39,195,255,0.4);
    font-family: 'Fira Code', monospace;
    flex-shrink: 0;
    margin-left: auto;
}

/* ── Processing bar ── */
#rag-proc-bar {
    height: 2px;
    width: 100%;
    background: linear-gradient(90deg,
        transparent,
        rgba(124,92,255,1),
        rgba(39,195,255,1),
        rgba(124,92,255,1),
        transparent);
    background-size: 300% 100%;
    animation: proc-sweep 1.2s ease-in-out infinite;
    opacity: 0;
    transition: opacity 0.3s;
    flex-shrink: 0;
}
#rag-proc-bar.on { opacity: 1; }
@keyframes proc-sweep {
    0%   { background-position: 100% 0; }
    100% { background-position: -100% 0; }
}

/* ── Error state ── */
.rag-error {
    color: rgba(255,100,100,0.8);
    font-family: 'Fira Code', monospace;
    font-size: 11px;
}

/* ── Responsive ── */
@media (max-width: 480px) {
    #rag-widget {
        right: 12px;
        left: 12px;
        width: auto;
        bottom: 96px;
    }
    #rag-trigger {
        right: 20px;
        bottom: 24px;
    }
}