/* Darapet Technology Studio — Full Page CSS */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    --dts-sidebar-w: 260px;
    --dts-bg: #ffffff;
    --dts-sidebar-bg: #0f172a;
    --dts-sidebar-text: #cbd5e1;
    --dts-sidebar-hover: rgba(255,255,255,0.08);
    --dts-sidebar-active: rgba(99,102,241,0.25);
    --dts-primary: #6366f1;
    --dts-primary-dark: #4f46e5;
    --dts-surface: #f8fafc;
    --dts-border: #e2e8f0;
    --dts-text: #0f172a;
    --dts-muted: #64748b;
    --dts-user-bubble: #6366f1;
    --dts-ai-bubble: #f1f5f9;
    --dts-footer-h: 80px;
}

html, body {
    height: 100%;
    /* Fallback for browsers that don't support dvh */
    height: -webkit-fill-available;
    overflow: hidden;
    font-family: 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    -webkit-text-size-adjust: 100%;
}
.dts-body { background: var(--dts-bg); color: var(--dts-text); }

/* ===== LAYOUT ===== */
#dts-app {
    display: flex;
    height: 100vh;
    height: 100dvh; /* Dynamic viewport height — works on Android Chrome */
    overflow: hidden;
}

/* ===== SIDEBAR ===== */
.dts-sidebar {
    width: var(--dts-sidebar-w);
    background: var(--dts-sidebar-bg);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    overflow: hidden;
    transition: transform 0.3s;
}

.dts-logo-wrap {
    display: flex;
    align-items: center;
    gap: 12px;
    padding: 20px 16px 16px;
    border-bottom: 1px solid rgba(255,255,255,0.08);
}

.dts-logo-text { line-height: 1; }
.dts-logo-name { font-size: 1rem; font-weight: 700; color: #fff; letter-spacing: 0.5px; }
.dts-logo-sub  { font-size: 0.68rem; color: #94a3b8; text-transform: uppercase; letter-spacing: 1.5px; }

.dts-new-chat-btn {
    margin: 14px 12px 8px;
    padding: 10px 14px;
    background: rgba(99,102,241,0.2);
    border: 1px solid rgba(99,102,241,0.4);
    border-radius: 10px;
    color: #a5b4fc;
    font-size: 0.875rem;
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    gap: 8px;
    transition: all 0.15s;
}
.dts-new-chat-btn:hover { background: rgba(99,102,241,0.35); color: #fff; }

.dts-nav { flex: 1; padding: 8px 8px; overflow-y: auto; }
.dts-nav-section-label { font-size: 0.68rem; font-weight: 600; color: #475569; text-transform: uppercase; letter-spacing: 1.5px; padding: 8px 10px 4px; }
.dts-nav-link {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 9px 12px;
    border-radius: 8px;
    color: var(--dts-sidebar-text);
    text-decoration: none;
    font-size: 0.875rem;
    font-weight: 500;
    transition: all 0.15s;
    margin-bottom: 2px;
}
.dts-nav-link:hover { background: var(--dts-sidebar-hover); color: #fff; }
.dts-nav-active    { background: var(--dts-sidebar-active) !important; color: #a5b4fc !important; }
.dts-nav-divider   { border-top: 1px solid rgba(255,255,255,0.08); margin: 10px 8px; }
.dts-logout-link   { color: #f87171 !important; }
.dts-logout-link:hover { background: rgba(248,113,113,0.12) !important; }

/* PWA nav button styles moved to aqs-pwa.css (loaded on all pages) */

.dts-sidebar-footer { padding: 12px 8px; border-top: 1px solid rgba(255,255,255,0.08); }
.dts-user-row { display: flex; align-items: center; gap: 10px; padding: 8px 12px; margin-bottom: 4px; }
.dts-user-avatar { width: 32px; height: 32px; border-radius: 50%; background: var(--dts-primary); color: #fff; font-size: 0.8rem; font-weight: 700; display: flex; align-items: center; justify-content: center; flex-shrink: 0; }
.dts-user-name { font-size: 0.825rem; font-weight: 600; color: #f1f5f9; }
.dts-user-role { font-size: 0.7rem; color: #94a3b8; text-transform: capitalize; }

/* Mobile toggle */
.dts-sidebar-toggle { display: none; position: fixed; top: 12px; left: 12px; z-index: 200; background: var(--dts-primary); border: none; border-radius: 8px; color: #fff; width: 36px; height: 36px; font-size: 1rem; cursor: pointer; }

/* ===== MAIN ===== */
.dts-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    position: relative;
    padding-bottom: var(--dts-footer-h);
}

.dts-messages {
      flex: 1;
      overflow-y: auto;
      padding: 24px 0;
      scroll-behavior: smooth;
      /* Always keep last message above the fixed footer on all devices */
      padding-bottom: calc(var(--dts-footer-h, 80px) + 60px);
  }

/* ===== WELCOME ===== */
.dts-welcome {
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-start;
    padding: 60px 24px 120px; /* 120px bottom clears the fixed footer */
    text-align: center;
    animation: dts-fade-in 0.4s ease;
    z-index: 10;
}

.dts-welcome-icon { margin-bottom: 20px; }
.dts-welcome-title { font-size: 1.8rem; font-weight: 700; color: var(--dts-text); margin-bottom: 10px; }
.dts-welcome-sub { font-size: 1rem; color: var(--dts-muted); max-width: 520px; margin-bottom: 32px; line-height: 1.6; }

.dts-suggestions { display: grid; grid-template-columns: 1fr 1fr; gap: 12px; max-width: 640px; width: 100%; }
.dts-suggestion-btn {
    padding: 14px 16px;
    background: var(--dts-surface);
    border: 1px solid var(--dts-border);
    border-radius: 12px;
    font-size: 0.875rem;
    font-weight: 500;
    color: var(--dts-text);
    cursor: pointer;
    text-align: left;
    line-height: 1.4;
    transition: all 0.15s;
}
.dts-suggestion-btn:hover { border-color: var(--dts-primary); background: #eef2ff; }

/* ===== MESSAGES ===== */
.dts-message {
    display: flex;
    gap: 14px;
    padding: 8px 24px;
    max-width: 900px;
    margin: 0 auto;
    width: 100%;
    animation: dts-fade-in 0.25s ease;
}

.dts-message.dts-user   { flex-direction: row-reverse; }
.dts-message.dts-ai     { flex-direction: row; }

.dts-msg-avatar {
    width: 32px;
    height: 32px;
    border-radius: 50%;
    flex-shrink: 0;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 0.8rem;
    font-weight: 700;
    margin-top: 2px;
}
.dts-user .dts-msg-avatar { background: var(--dts-primary); color: #fff; }
.dts-ai   .dts-msg-avatar { background: #0f172a; color: #fff; font-size: 1rem; }

.dts-msg-content { max-width: 78%; }
.dts-user .dts-msg-content { align-items: flex-end; display: flex; flex-direction: column; }

.dts-msg-bubble {
    padding: 12px 16px;
    border-radius: 16px;
    font-size: 0.94rem;
    line-height: 1.65;
    word-wrap: break-word;
}
.dts-user .dts-msg-bubble {
    background: var(--dts-primary);
    color: #fff;
    border-bottom-right-radius: 4px;
}
.dts-ai .dts-msg-bubble {
    background: var(--dts-ai-bubble);
    color: var(--dts-text);
    border-bottom-left-radius: 4px;
}

/* Markdown inside AI bubble */
.dts-ai .dts-msg-bubble h1,
.dts-ai .dts-msg-bubble h2,
.dts-ai .dts-msg-bubble h3 { font-weight: 700; margin: 12px 0 6px; line-height: 1.3; }
.dts-ai .dts-msg-bubble h1 { font-size: 1.2rem; }
.dts-ai .dts-msg-bubble h2 { font-size: 1.05rem; }
.dts-ai .dts-msg-bubble h3 { font-size: 0.95rem; }
.dts-ai .dts-msg-bubble p  { margin: 6px 0; }
.dts-ai .dts-msg-bubble ul,
.dts-ai .dts-msg-bubble ol { margin: 6px 0 6px 20px; }
.dts-ai .dts-msg-bubble li { margin: 3px 0; }
.dts-ai .dts-msg-bubble strong { font-weight: 700; }
.dts-ai .dts-msg-bubble em    { font-style: italic; }
.dts-ai .dts-msg-bubble code:not(.hljs) { background: #e2e8f0; padding: 1px 5px; border-radius: 4px; font-size: 0.85em; font-family: 'Fira Code', 'Courier New', monospace; }
.dts-ai .dts-msg-bubble pre   { background: #0f172a; border-radius: 10px; padding: 14px 16px; overflow-x: auto; margin: 8px 0; }
.dts-ai .dts-msg-bubble pre code { color: #e2e8f0; font-size: 0.83rem; background: none; padding: 0; }
.dts-ai .dts-msg-bubble blockquote { border-left: 3px solid var(--dts-primary); padding-left: 12px; color: var(--dts-muted); margin: 8px 0; }
.dts-ai .dts-msg-bubble table { border-collapse: collapse; width: 100%; margin: 8px 0; font-size: 0.88rem; }
.dts-ai .dts-msg-bubble th, .dts-ai .dts-msg-bubble td { border: 1px solid #cbd5e1; padding: 6px 10px; }
.dts-ai .dts-msg-bubble th { background: #e2e8f0; font-weight: 600; }

/* KaTeX display math */
.dts-katex-display { overflow-x: auto; padding: 8px 0; text-align: center; }
.katex-display { overflow-x: auto; }

/* Copy button */
.dts-msg-actions { display: flex; gap: 6px; margin-top: 6px; }
.dts-copy-btn { background: none; border: 1px solid var(--dts-border); border-radius: 6px; padding: 3px 10px; font-size: 0.75rem; color: var(--dts-muted); cursor: pointer; transition: all 0.15s; }
.dts-copy-btn:hover { border-color: var(--dts-primary); color: var(--dts-primary); }
/* ── Per-code-block copy button ─────────────────────── */
.dts-code-wrap { position: relative; }
.dts-code-copy-btn {
  position: absolute; top: 8px; right: 8px;
  background: rgba(255,255,255,0.08); border: 1px solid rgba(255,255,255,0.18);
  border-radius: 5px; padding: 3px 10px; font-size: 0.7rem; color: #94a3b8;
  cursor: pointer; transition: all 0.15s; font-family: inherit; line-height: 1.5;
  white-space: nowrap; z-index: 2;
}
.dts-code-copy-btn:hover { background: rgba(255,255,255,0.16); color: #e2e8f0; border-color: rgba(255,255,255,0.35); }
.dts-code-copy-btn.copied { color: #4ade80; border-color: #4ade80; background: rgba(74,222,128,0.12); }
/* ── Per-message copy button ─────────────────────── */
.dts-msg-copy-btn {
  display: inline-flex; align-items: center; gap: 5px;
  margin-top: 10px; padding: 5px 13px;
  background: rgba(99,102,241,0.08); border: 1px solid rgba(99,102,241,0.25);
  border-radius: 7px; font-size: 0.76rem; font-weight: 600; color: #a5b4fc;
  cursor: pointer; transition: all 0.15s; font-family: inherit; line-height: 1.5;
}
.dts-msg-copy-btn:hover { background: rgba(99,102,241,0.18); color: #c7d2fe; border-color: rgba(99,102,241,0.5); transform: translateY(-1px); }
.dts-msg-copy-btn.copied { color: #4ade80; border-color: #4ade80; background: rgba(74,222,128,0.1); }

/* Typing indicator */
.dts-typing { display: flex; align-items: center; gap: 14px; padding: 8px 24px; max-width: 900px; margin: 0 auto; width: 100%; }
.dts-typing-dots { display: flex; gap: 5px; background: var(--dts-ai-bubble); padding: 12px 16px; border-radius: 16px; border-bottom-left-radius: 4px; }
.dts-typing-dots span { width: 7px; height: 7px; background: var(--dts-muted); border-radius: 50%; animation: dts-bounce 1.4s infinite ease-in-out; }
.dts-typing-dots span:nth-child(1) { animation-delay: 0s; }
.dts-typing-dots span:nth-child(2) { animation-delay: 0.16s; }
.dts-typing-dots span:nth-child(3) { animation-delay: 0.32s; }

@keyframes dts-bounce {
    0%, 60%, 100% { transform: translateY(0); }
    30%            { transform: translateY(-6px); }
}
@keyframes dts-fade-in { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: translateY(0); } }

/* ===== FOOTER INPUT ===== */
.dts-footer {
    position: fixed;
    bottom: 0;
    left: var(--dts-sidebar-w);
    right: 0;
    background: var(--dts-bg);
    border-top: 1px solid var(--dts-border);
    padding: 12px 24px 8px;
    z-index: 100;
}

.dts-input-wrap {
    display: flex;
    align-items: flex-end;
    gap: 10px;
    background: var(--dts-surface);
    border: 1.5px solid var(--dts-border);
    border-radius: 14px;
    padding: 10px 10px 10px 16px;
    max-width: 860px;
    margin: 0 auto;
    transition: border-color 0.15s;
}
.dts-input-wrap:focus-within { border-color: var(--dts-primary); }

.dts-input {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    font-size: 0.94rem;
    font-family: inherit;
    color: var(--dts-text);
    resize: none;
    max-height: 180px;
    line-height: 1.5;
}
.dts-input::placeholder { color: #94a3b8; }

.dts-send-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: var(--dts-primary);
    border: none;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: background 0.15s;
}
.dts-send-btn:hover { background: var(--dts-primary-dark); }
.dts-send-btn:disabled { background: #cbd5e1; cursor: not-allowed; }

.dts-disclaimer {
    text-align: center;
    font-size: 0.72rem;
    color: #94a3b8;
    margin-top: 6px;
}

/* ===== FIX: Prevent horizontal scroll from AI responses ===== */
.dts-messages { overflow-x: hidden; }
.dts-msg-bubble { overflow-wrap: anywhere; word-break: break-word; }
.dts-ai .dts-msg-bubble pre { max-width: 100%; overflow-x: auto; }
.dts-ai .dts-msg-bubble table { display: block; overflow-x: auto; max-width: 100%; }

/* ===== Typewriter / streaming text effect ===== */
.aqs-type-stream {
    white-space: pre-wrap;
    word-break: break-word;
    font-family: inherit;
    font-size: inherit;
    line-height: 1.65;
    min-height: 1.2em;
}

/* Blinking block cursor shown while text is streaming */
.aqs-type-cursor {
    display: inline-block;
    width: 2px;
    height: 1.1em;
    background: var(--dts-primary, #6366f1);
    border-radius: 1px;
    margin-left: 2px;
    vertical-align: text-bottom;
    -webkit-animation: aqs-cursor-blink 0.65s step-end infinite;
    animation: aqs-cursor-blink 0.65s step-end infinite;
}

@keyframes aqs-cursor-blink {
    0%, 100% { opacity: 1; }
    50%       { opacity: 0; }
}

/* ===== Overlay for mobile sidebar ===== */
.dts-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.55);
    z-index: 280;
    -webkit-tap-highlight-color: transparent;
    cursor: pointer;
}

/* ===== RESPONSIVE ===== */
@media (max-width: 768px) {
    /* Sidebar — slides in from left, crisp rendering on mobile GPU */
    .dts-sidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100vh;
        z-index: 300;
        transform: translateX(-100%);
        will-change: transform;
        backface-visibility: hidden;
        -webkit-backface-visibility: hidden;
        transition: transform 0.28s cubic-bezier(0.4, 0, 0.2, 1);
    }
    .dts-sidebar.open { transform: translateX(0); box-shadow: 4px 0 24px rgba(0,0,0,0.35); }

    /* Hamburger button — sits above everything */
    .dts-sidebar-toggle {
        display: flex;
        align-items: center;
        justify-content: center;
        z-index: 320;
        top: 14px;
        left: 14px;
        box-shadow: 0 2px 8px rgba(0,0,0,0.2);
    }

    /* Main area — push content below the hamburger and above footer */
    .dts-main {
        padding-top: 56px;
        padding-bottom: calc(90px + env(safe-area-inset-bottom, 0px));
    }

    /* Footer chat input — full width, safe-area aware */
    .dts-footer {
        left: 0;
        padding: 10px 16px calc(10px + env(safe-area-inset-bottom, 0px));
    }

    /* Messages */
    .dts-message { padding: 8px 12px; }
    .dts-msg-content { max-width: 88%; }

    /* Welcome screen */
    .dts-welcome { padding-top: 20px; padding-bottom: 16px; }
    .dts-welcome-title { font-size: 1.4rem; }
    .dts-welcome-sub { font-size: 0.88rem; }
    .dts-suggestions { grid-template-columns: 1fr; gap: 10px; }
    .dts-suggestion-btn { padding: 12px 14px; }

    /* Input area */
    .dts-input-wrap { border-radius: 12px; }
    .dts-input { font-size: 0.92rem; }

    /* Typing indicator */
    .dts-typing { padding: 8px 12px; }
}

@media (max-width: 480px) {
    .dts-welcome-title { font-size: 1.2rem; }
    .dts-msg-bubble { font-size: 0.88rem; padding: 10px 13px; }
    .dts-msg-avatar { width: 28px; height: 28px; font-size: 0.75rem; }
}



/* ── Improved mobile touch scrolling ── */
.dts-messages {
    -webkit-overflow-scrolling: touch;
    overscroll-behavior: contain;
}

/* ── Footer keyboard safe area on iOS/Android ── */
@supports (padding-bottom: env(keyboard-inset-height)) {
    .dts-footer {
        padding-bottom: calc(10px + env(keyboard-inset-height, 0px) + env(safe-area-inset-bottom, 0px));
    }
}

/* ── Better message bubbles on small screens ── */
@media (max-width: 400px) {
    .dts-msg-content { max-width: 95%; }
    .dts-msg-bubble { font-size: 0.87rem; padding: 9px 12px; }
    .dts-footer-inner { padding: 0 10px; }
    .dts-input-wrap { border-radius: 10px; }
}

/* ══════════════════════════════════════════════════════════
   MOBILE SCROLL & LAYOUT FIX — ensures messages are
   visible and scrollable on iOS Safari & Android Chrome
   ══════════════════════════════════════════════════════════ */

/* Force the messages container to be a proper scroll box on all mobile browsers */
.dts-messages {
    -webkit-overflow-scrolling: touch;   /* iOS momentum scroll */
    overscroll-behavior-y: contain;      /* prevent page scroll bleed */
    /* Ensure it never collapses to zero height in any flex quirk */
    min-height: 0;
}

/* Make sure the main column always fills available height correctly on iOS */
#dts-app {
    /* Fallback chain: dvh → svh → -webkit-fill-available → 100vh */
    height: 100vh;
    height: -webkit-fill-available;
    height: 100svh;
    height: 100dvh;
}

html {
    /* Prevent iOS rubber-band bounce from throwing off layout */
    overscroll-behavior: none;
}

@media (max-width: 768px) {
    /* Guarantee messages stretch into all available space
       between the hamburger topbar and the fixed footer */
    .dts-main {
        /* Grid is more reliable than flex for this on mobile */
        display: grid;
        grid-template-rows: 1fr;
        min-height: 0;
    }
    .dts-messages {
        height: 100%;
        min-height: 0;
        padding-bottom: calc(100px + env(safe-area-inset-bottom, 0px));
    }

    /* Prevent iOS from hiding the footer behind the home-indicator bar */
    .dts-footer {
        padding-bottom: calc(12px + env(safe-area-inset-bottom, 0px));
        bottom: env(safe-area-inset-bottom, 0px);
    }

    /* Ensure all message text wraps properly on narrow screens */
    .dts-msg-bubble {
        word-break: break-word;
        overflow-wrap: anywhere;
    }
}

@media (max-width: 480px) {
    /* Extra small phones — tighter message padding */
    .dts-message { padding: 6px 10px; }
    .dts-msg-content { max-width: 92%; }
    .dts-input { font-size: 16px; } /* Prevent iOS auto-zoom on input focus */
}

/* ===== FILE UPLOAD ===== */

/* Paperclip attach button inside the input row */
.dts-file-btn {
    width: 32px;
    height: 32px;
    border-radius: 8px;
    background: none;
    border: 1.5px solid var(--dts-border);
    color: var(--dts-muted);
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: border-color 0.15s, color 0.15s;
}
.dts-file-btn:hover { border-color: var(--dts-primary); color: var(--dts-primary); }

/* Status strip that appears above the input row */
.dts-file-status {
    display: flex;
    align-items: center;
    gap: 8px;
    max-width: 860px;
    margin: 0 auto 6px;
    padding: 6px 12px;
    background: #eef2ff;
    border: 1px solid #c7d2fe;
    border-radius: 8px;
    font-size: 0.8rem;
    overflow: hidden;
}
.dts-file-loading { color: var(--dts-muted); }
.dts-file-attached {
    color: #3730a3;
    font-weight: 500;
    flex: 1;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.dts-file-error { color: #991b1b; }
.dts-file-clear {
    background: none;
    border: none;
    cursor: pointer;
    color: var(--dts-muted);
    font-size: 0.8rem;
    padding: 2px 5px;
    border-radius: 4px;
    flex-shrink: 0;
    line-height: 1;
}
.dts-file-clear:hover { color: #ef4444; background: rgba(239,68,68,0.1); }

/* ===== VOICE CONVERSATION OVERLAY ===== */

.dts-voice-overlay {
    position: fixed;
    inset: 0;
    background: rgba(10, 10, 30, 0.92);
    z-index: 9999;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px;
    -webkit-backdrop-filter: blur(6px);
    backdrop-filter: blur(6px);
    animation: dts-fade-in 0.25s ease;
}

.dts-voice-modal {
    background: #0f172a;
    border: 1px solid rgba(99,102,241,0.35);
    border-radius: 24px;
    padding: 40px 32px 36px;
    max-width: 420px;
    width: 100%;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 20px;
    position: relative;
    box-shadow: 0 32px 80px rgba(0,0,0,0.6);
}

/* Close button */
.dts-voice-close {
    position: absolute;
    top: 14px;
    right: 16px;
    background: rgba(255,255,255,0.08);
    border: none;
    color: #94a3b8;
    font-size: 1rem;
    cursor: pointer;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: background 0.15s, color 0.15s;
}
.dts-voice-close:hover { background: rgba(239,68,68,0.2); color: #f87171; }

/* ── Animated orb ── */
.dts-voice-orb {
    position: relative;
    width: 110px;
    height: 110px;
    display: flex;
    align-items: center;
    justify-content: center;
}

.dts-voice-ring {
    position: absolute;
    border-radius: 50%;
    border: 2px solid rgba(99,102,241,0.4);
    animation: dts-voice-pulse 2.4s ease-out infinite;
    opacity: 0;
}
.dts-voice-ring1 { width: 100%; height: 100%; animation-delay: 0s;    }
.dts-voice-ring2 { width: 78%;  height: 78%;  animation-delay: 0.6s;  }
.dts-voice-ring3 { width: 56%;  height: 56%;  animation-delay: 1.2s;  }

/* Rings only animate when listening */
.dts-voice-orb[data-state="idle"]      .dts-voice-ring,
.dts-voice-orb[data-state="thinking"]  .dts-voice-ring,
.dts-voice-orb[data-state="error"]     .dts-voice-ring { animation: none; opacity: 0; }
.dts-voice-orb[data-state="speaking"]  .dts-voice-ring { border-color: rgba(16,185,129,0.4); }
.dts-voice-orb[data-state="listening"] .dts-voice-ring { border-color: rgba(99,102,241,0.5); }

@keyframes dts-voice-pulse {
    0%   { transform: scale(0.7); opacity: 0.6; }
    100% { transform: scale(1.4); opacity: 0; }
}

.dts-voice-orb-inner {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    background: linear-gradient(135deg, #6366f1, #4f46e5);
    display: flex;
    align-items: center;
    justify-content: center;
    color: #fff;
    box-shadow: 0 0 0 0 rgba(99,102,241,0.4);
    transition: background 0.3s;
    z-index: 1;
}

/* Colour shifts by state */
.dts-voice-orb[data-state="listening"] .dts-voice-orb-inner {
    background: linear-gradient(135deg, #6366f1, #818cf8);
    animation: dts-orb-listening 1.2s ease-in-out infinite alternate;
}
.dts-voice-orb[data-state="thinking"] .dts-voice-orb-inner {
    background: linear-gradient(135deg, #f59e0b, #fbbf24);
}
.dts-voice-orb[data-state="speaking"] .dts-voice-orb-inner {
    background: linear-gradient(135deg, #10b981, #34d399);
    animation: dts-orb-speaking 0.8s ease-in-out infinite alternate;
}
.dts-voice-orb[data-state="error"] .dts-voice-orb-inner {
    background: linear-gradient(135deg, #ef4444, #f87171);
}

@keyframes dts-orb-listening {
    from { transform: scale(1);    box-shadow: 0 0 0  4px rgba(99,102,241,0.25); }
    to   { transform: scale(1.06); box-shadow: 0 0 0 16px rgba(99,102,241,0.08); }
}
@keyframes dts-orb-speaking {
    from { transform: scale(1);    box-shadow: 0 0 0  4px rgba(16,185,129,0.25); }
    to   { transform: scale(1.05); box-shadow: 0 0 0 14px rgba(16,185,129,0.08); }
}

/* Status label */
.dts-voice-status {
    font-size: 1.05rem;
    font-weight: 600;
    color: #e2e8f0;
    text-align: center;
    letter-spacing: 0.01em;
}

/* Live transcript */
.dts-voice-transcript {
    min-height: 48px;
    max-height: 100px;
    overflow-y: auto;
    font-size: 0.9rem;
    color: #94a3b8;
    text-align: center;
    line-height: 1.5;
    font-style: italic;
    padding: 0 8px;
    white-space: pre-line;
}

/* Hint */
.dts-voice-hint {
    font-size: 0.75rem;
    color: #475569;
    text-align: center;
    line-height: 1.5;
}

/* Controls row */
.dts-voice-controls {
    display: flex;
    gap: 12px;
    flex-wrap: wrap;
    justify-content: center;
}

.dts-voice-toggle-btn {
    display: flex;
    align-items: center;
    gap: 8px;
    padding: 11px 22px;
    background: #6366f1;
    border: none;
    border-radius: 12px;
    color: #fff;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s, transform 0.1s;
}
.dts-voice-toggle-btn:hover  { background: #4f46e5; transform: translateY(-1px); }
.dts-voice-toggle-btn:active { transform: translateY(0); }

.dts-voice-end-btn {
    padding: 11px 20px;
    background: rgba(239,68,68,0.12);
    border: 1px solid rgba(239,68,68,0.35);
    border-radius: 12px;
    color: #f87171;
    font-size: 0.9rem;
    font-weight: 600;
    cursor: pointer;
    transition: background 0.15s;
}
.dts-voice-end-btn:hover { background: rgba(239,68,68,0.25); }

/* Voice button in input bar */
.dts-voice-btn {
    width: 36px;
    height: 36px;
    border-radius: 10px;
    background: linear-gradient(135deg, #6366f1, #4f46e5);
    border: none;
    color: #fff;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    transition: opacity 0.15s, transform 0.1s;
    box-shadow: 0 2px 8px rgba(99,102,241,0.35);
}
.dts-voice-btn:hover  { opacity: 0.88; transform: translateY(-1px); }
.dts-voice-btn:active { transform: translateY(0); }

/* Mobile tweaks */
@media (max-width: 480px) {
    .dts-voice-modal  { padding: 32px 20px 28px; border-radius: 20px; }
    .dts-voice-status { font-size: 0.95rem; }
    .dts-voice-controls { gap: 8px; }
    .dts-voice-toggle-btn,
    .dts-voice-end-btn  { padding: 10px 16px; font-size: 0.85rem; }
}

/* File chip shown above the user's message bubble */
.dts-file-chip {
    display: inline-flex;
    align-items: center;
    gap: 4px;
    font-size: 0.73rem;
    font-weight: 500;
    color: rgba(255,255,255,0.85);
    background: rgba(255,255,255,0.18);
    border-radius: 6px;
    padding: 3px 10px;
    margin-bottom: 5px;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

/* AQS-STUDIO-MOB-v9-START */
@media (max-width: 768px) {

    /* ── 1. Collapse the history topbar row to zero height ── */
    #dts-hist-topbar {
        padding: 0 !important;
        min-height: 0 !important;
        height: 0 !important;
        border-bottom: none !important;
        background: transparent !important;
        /* overflow:visible so the fixed button is still visible */
        overflow: visible !important;
    }

    /* ── 2. Pin History button top-right, same row as the left hamburger ──
            Sidebar hamburger:  position:fixed; top:cdH+8px; left:8px
            History button:     position:fixed; top:cdH+8px; right:8px        */
    #dts-hist-open-btn {
        position: fixed !important;
        top: calc(var(--aqs-cd-bar-h, 0px) + 8px) !important;
        right: 8px !important;
        left: auto !important;
        width: 40px !important;
        height: 40px !important;
        padding: 0 !important;
        justify-content: center !important;
        align-items: center !important;
        border-radius: 10px !important;
        z-index: 310 !important;
        /* font-size:0 hides the "History" text while keeping SVG visible */
        font-size: 0 !important;
        letter-spacing: 0 !important;
        gap: 0 !important;
        box-shadow: 0 4px 14px rgba(99, 102, 241, 0.5) !important;
    }
    /* Keep the SVG icon at a readable size */
    #dts-hist-open-btn > svg {
        width: 18px !important;
        height: 18px !important;
        flex-shrink: 0;
    }

    /* ── 3. Remove phantom top-padding on messages area ──
            The old aqs-studio.css added 56px here for a legacy
            hamburger. .aqs-sidebar-body already gives 60px clearance. */
    .dts-main {
        padding-top: 0 !important;
    }
}
/* AQS-STUDIO-MOB-v9-END */