/* ============================================================
   CHAT
   Conversation column: messages, confirmation cards, suggestions,
   input bar and streaming cursor. Base rules first, desktop polish
   overrides at the end. Loaded before components.css so the mobile
   responsive overrides there keep winning the cascade.
   ============================================================ */

/* ============================================ 11. MESSAGES AREA ============================================ */
#mobile-chat-header { display: none; }

#messages-area {
    flex: 1; overflow-y: auto; padding: 8px 8px 12px 0; display: flex; flex-direction: column;
    gap: 14px; scroll-behavior: smooth; min-height: 0;
    scrollbar-gutter: stable;
}
.message { max-width: 90%; animation: messageIn 0.5s cubic-bezier(0.25,0.46,0.45,0.94); }
@keyframes messageIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
.message-user {
    align-self: flex-end; background: var(--bg-surface-2); backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px); border: 1px solid var(--border-subtle);
    padding: 10px 16px; font-size: 0.9375rem;
}
.message-ai { align-self: flex-start; padding: 4px 0; max-width: 95%; }
.message-ai-text {
    font-size: 0.9375rem; line-height: 1.7; border-left: 2px solid var(--time-accent);
    padding-left: 14px; margin-left: 4px;
}
.message-ai-text p { margin-bottom: 6px; }
.message-ai-text p:last-child { margin-bottom: 0; }
.clarifying-questions { margin-top: 10px; display: flex; flex-direction: column; gap: 4px; }
.clarifying-question { font-size: 0.85rem; color: var(--accent-gold); padding-left: 14px; margin-left: 4px; position: relative; }
.clarifying-question::before { content: '?'; position: absolute; left: 0; color: var(--accent-gold); font-weight: 600; }

/* Overview cards */
.overview-container { display: flex; flex-wrap: wrap; gap: 10px; margin-top: 14px; padding-left: 4px; }
.chat-adaptive-overview { max-width: min(420px, 100%); align-items: stretch; }
.overview-card {
    background: var(--bg-surface-2); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-subtle); border-radius: 18px 14px 20px 12px;
    padding: 14px 16px; min-width: 180px; flex: 1; max-width: 100%;
    animation: cardEnter 0.5s cubic-bezier(0.25,0.46,0.45,0.94) both; transition: border-color 0.3s ease;
}
.overview-card:hover { background: rgba(255,255,255,0.025); }
@keyframes cardEnter { from { opacity: 0; transform: translateY(14px); } to { opacity: 1; transform: translateY(0); } }
.overview-card-title { font-size: 0.72rem; text-transform: uppercase; letter-spacing: 0.1em; color: var(--text-muted); margin-bottom: 8px; }
.overview-item {
    display: flex; align-items: flex-start; gap: 6px; padding: 4px 6px; font-size: 0.85rem;
    border-radius: 8px; cursor: pointer; transition: var(--transition-fast);
}
.overview-item:hover:not(:has(.overview-complete-btn:hover)) { background: var(--interactive-hover-bg); }
.chat-adaptive-card { min-width: 150px; max-width: 210px; border-radius: 8px; padding: 12px 13px; }
.overview-dot { width: 6px; height: 6px; border-radius: 50%; flex-shrink: 0; margin-top: 6px; }
.overview-item-copy { flex: 1; min-width: 0; display: flex; flex-direction: column; gap: 1px; }
.overview-item-title { flex: 1; color: var(--text-primary); overflow-wrap: anywhere; }
.overview-item.overdue .overview-item-title { color: var(--overdue); }
.overview-deadline { font-size: 0.72rem; color: var(--text-muted); white-space: normal; line-height: 1.35; }
.overview-deadline-item .overview-deadline { color: var(--accent-gold); }
.overview-empty-line { font-size: 0.78rem; line-height: 1.45; color: var(--text-muted); }
.overview-complete-btn {
    padding: 2px 6px; font-size: 0.72rem; color: var(--accent-moss);
    border: 1px solid rgba(122,140,101,0.3); border-radius: 8px; transition: var(--transition-fast); flex-shrink: 0;
}
.overview-complete-btn:hover { background: rgba(122,140,101,0.15); }

/* Adaptive chat widgets */
.chat-widget-stack { display: flex; flex-wrap: wrap; gap: 8px; margin-top: 12px; max-width: min(680px, 100%); }
.chat-context-widget {
    flex: 1 1 190px; max-width: 240px; min-width: 170px;
    padding: 11px 12px; border: 1px solid var(--border-subtle); border-radius: 8px;
    background: var(--bg-surface-2); animation: cardEnter 0.35s cubic-bezier(0.25,0.46,0.45,0.94) both;
    backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
}
.chat-context-head { display: flex; align-items: center; gap: 7px; font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); margin-bottom: 7px; }
.chat-context-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--accent-gold); flex-shrink: 0; }
.chat-context-widget-deadline .chat-context-dot { background: var(--accent-sakura); }
.chat-context-widget-habits .chat-context-dot,
.chat-context-widget-project .chat-context-dot { background: var(--accent-moss); }
.chat-context-widget-maintenance .chat-context-dot { background: var(--accent-stone); }
.chat-context-body { font-size: 0.82rem; line-height: 1.45; color: var(--text-primary); overflow-wrap: anywhere; }
.chat-context-meta { margin-top: 5px; font-size: 0.72rem; line-height: 1.38; color: var(--text-muted); }
.chat-context-actions { display: flex; flex-wrap: wrap; gap: 6px; margin-top: 9px; }
.chat-context-action {
    padding: 5px 9px; border-radius: 999px; border: 1px solid rgba(196,169,106,0.24);
    color: var(--accent-gold); font-size: 0.72rem; transition: var(--transition-fast);
}
.chat-context-action:hover { background: rgba(196,169,106,0.09); color: var(--text-primary); }
.chat-context-action:disabled { opacity: 0.58; pointer-events: none; }

/* Thinking indicator */
.thinking-indicator {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    align-self: flex-start;
    width: 42px;
    height: 42px;
    padding: 5px 0 5px 5px;
}
.thinking-indicator .thinking-orb-container {
    width: 27px;
    height: 27px;
    filter: drop-shadow(0 0 8px rgba(196, 169, 106, 0.2));
}
.thinking-indicator .thinking-orb-core {
    inset: 7px;
    background:
        radial-gradient(circle, color-mix(in srgb, var(--time-accent) 64%, white 6%) 0%, rgba(196, 169, 106, 0.1) 72%, transparent 100%);
    animation-duration: 2.2s;
}
.thinking-indicator .thinking-orb-ring:nth-child(2) {
    inset: 2px;
    border-top-color: color-mix(in srgb, var(--time-accent) 54%, transparent);
    border-right-color: rgba(196, 169, 106, 0.16);
    animation-duration: 2.4s, 2.4s;
}
.thinking-indicator .thinking-orb-ring:nth-child(3) {
    inset: -3px;
    border-bottom-color: rgba(122, 140, 101, 0.26);
    border-left-color: rgba(196, 145, 155, 0.12);
    animation-duration: 3.6s, 3s;
}
.thinking-indicator .thinking-orb-ring:nth-child(4) {
    inset: -7px;
    border-top-color: rgba(196, 169, 106, 0.12);
    border-left-color: rgba(122, 140, 101, 0.08);
    animation-duration: 5.2s, 3.8s;
}

/* ============================================ 12. CONFIRMATION CARDS (Interactive) ============================================ */
.confirmation-card {
    background: color-mix(in srgb, var(--bg-surface-3) 38%, var(--bg-surface-2));
    backdrop-filter: blur(16px); -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-subtle); border-radius: 20px 16px 22px 12px;
    padding: 16px 18px; margin-top: 4px; box-shadow: var(--shadow-soft);
    animation: cardEnter var(--duration-enter, 0.5s) var(--ease-emerge, cubic-bezier(0.25,0.46,0.45,0.94));
    max-width: 95%; align-self: flex-start; transition: opacity var(--duration-quick, 0.3s) ease, transform var(--duration-quick, 0.3s) ease;
}
.confirmation-header { display: flex; align-items: center; gap: 8px; margin-bottom: 8px; }
.confirmation-type-dot { width: 7px; height: 7px; border-radius: 50%; flex-shrink: 0; }
.confirmation-type-icon {
    width: 16px; height: 16px; flex-shrink: 0; color: var(--text-muted); opacity: 0.82;
}
.confirmation-type-label {
    font-family: var(--font-serif); font-size: 0.72rem; text-transform: uppercase;
    letter-spacing: 0.08em; color: var(--text-muted);
}
.confirmation-title { font-size: 0.98rem; color: var(--text-primary); margin-bottom: 4px; transition: all 0.3s ease; line-height: 1.45; }
.confirmation-summary { font-size: 0.82rem; color: var(--text-secondary); margin-bottom: 6px; transition: all 0.3s ease; line-height: 1.5; }
.confirmation-details {
    display: flex; flex-direction: column; gap: 6px;
    font-size: 0.78rem; color: var(--text-secondary); margin-bottom: 10px;
}
.confirmation-details span[data-field] {
    display: flex; align-items: center; gap: 8px;
    padding: 6px 10px; border-radius: 10px;
    background: color-mix(in srgb, var(--bg-surface-1) 55%, transparent);
    border: 1px solid var(--border-subtle);
    line-height: 1.4;
}
.confirm-detail-icon {
    width: 14px; height: 14px; flex-shrink: 0;
    color: color-mix(in srgb, var(--accent-primary) 70%, var(--text-muted));
}
.confirmation-details span:not([data-field]) { display: inline-block; margin-right: 10px; padding: 2px 0; }
.confirmation-details .detail-updated { color: var(--accent-gold); animation: subtlePulse 0.6s ease; }
.confirmation-target {
    margin: 8px 0 10px; padding: 9px 10px; border: 1px solid var(--border-subtle);
    border-radius: 10px; background: rgba(255,255,255,0.018);
}
.confirmation-target-label { font-size: 0.66rem; text-transform: uppercase; letter-spacing: 0.08em; color: var(--text-muted); margin-bottom: 3px; }
.confirmation-target-title { font-size: 0.9rem; color: var(--text-primary); line-height: 1.4; }
.confirmation-target-meta { font-size: 0.73rem; color: var(--text-muted); line-height: 1.45; margin-top: 2px; }
.confirmation-impact {
    margin: 8px 0 10px; font-size: 0.76rem; color: var(--text-secondary);
    border-left: 2px solid rgba(122,140,101,0.45); padding-left: 8px; line-height: 1.45;
}
.confirmation-impact.is-high-impact { color: var(--accent-gold); border-left-color: var(--accent-gold); }
.confirmation-blocked {
    display: flex; flex-direction: column; gap: 4px; margin: 8px 0 10px; padding: 9px 10px;
    border: 1px solid rgba(176,96,96,0.28); border-radius: 10px; color: var(--danger);
    background: rgba(176,96,96,0.055); font-size: 0.76rem; line-height: 1.45;
}
.confirmation-card-blocked { border-left-color: var(--danger) !important; }
@keyframes subtlePulse { 0% { opacity: 0.5; } 50% { opacity: 1; } 100% { opacity: 1; } }

/* Edit diff display */
.edit-diff { display: flex; flex-direction: column; gap: 6px; margin-bottom: 10px; padding: 8px 10px; background: rgba(255,255,255,0.02); border: 1px solid var(--border-subtle); border-radius: 10px; }
.edit-diff-row { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; font-size: 0.78rem; line-height: 1.4; }
.edit-diff-field { color: var(--text-muted); font-size: 0.7rem; text-transform: uppercase; letter-spacing: 0.04em; min-width: 60px; flex-shrink: 0; }
.edit-diff-old { color: var(--text-muted); text-decoration: line-through; text-decoration-color: rgba(192,96,80,0.5); opacity: 0.7; }
.edit-diff-arrow { color: var(--accent-gold); font-size: 0.7rem; opacity: 0.6; flex-shrink: 0; }
.edit-diff-new { color: var(--accent-gold); font-weight: 500; }

/* Card Questions (Quick Replies) */
.card-questions { margin-bottom: 10px; display: flex; flex-direction: column; gap: 10px; }
.card-question { min-width: 0; }
.card-question-text { font-size: 0.8rem; color: var(--text-secondary); margin-bottom: 6px; }
.card-question-options { display: flex; flex-wrap: wrap; gap: 5px; }
.quick-reply-btn {
    padding: 5px 12px; font-size: 0.75rem; color: var(--accent-gold);
    border: 1px solid rgba(196,169,106,0.25); border-radius: 14px; transition: var(--transition-fast);
}
.quick-reply-btn:hover { background: rgba(196,169,106,0.1); color: var(--text-primary); }
.quick-reply-btn.selected { background: rgba(196,169,106,0.15); border-color: var(--accent-gold); color: var(--text-primary); }
.card-question.answered { flex-direction: row; align-items: center; gap: 6px; display: flex; }
.card-question.answered .card-question-text { color: var(--text-muted); font-size: 0.75rem; margin-bottom: 0; }
.card-question.answered .card-question-options { display: none; }
.card-question-answer { font-size: 0.75rem; color: var(--accent-gold); }
.card-question-text-input {
    display: flex; gap: 6px; align-items: center;
}
.card-question-input {
    flex: 1; background: var(--bg-input); border: 1px solid var(--border-subtle);
    border-radius: 10px; padding: 6px 10px; font-size: 0.78rem; color: var(--text-primary);
    font-family: var(--font-sans); outline: none; min-width: 0;
}
.card-question-input:focus { border-color: var(--accent-gold); }
.card-question-send {
    width: 28px; height: 28px; border-radius: 50%; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    border: 1px solid rgba(196,169,106,0.25); color: var(--accent-gold);
    font-size: 0.8rem; transition: var(--transition-fast);
}
.card-question-send:hover { background: rgba(196,169,106,0.1); }

/* Card Clarify Input */
.card-clarify { margin-bottom: 10px; overflow: hidden; max-height: 0; opacity: 0; transition: max-height 0.4s ease, opacity 0.3s ease; }
.card-clarify.open { max-height: 60px; opacity: 1; }
.card-clarify-wrapper {
    display: flex; gap: 6px; align-items: center;
    background: rgba(0,0,0,0.2); border: 1px solid var(--border-subtle);
    border-radius: 12px; padding: 4px 4px 4px 12px;
}
.card-clarify-input {
    flex: 1; background: transparent; border: none; color: var(--text-primary);
    font-family: var(--font-sans); font-size: 0.8rem; outline: none; padding: 4px 0;
}
.card-clarify-input::placeholder { color: var(--text-muted); }
.card-clarify-send {
    width: 28px; height: 28px; display: flex; align-items: center; justify-content: center;
    background: var(--accent-gold); color: var(--bg-deep); border-radius: 8px;
    font-size: 0.85rem; font-weight: 600; transition: var(--transition-fast); flex-shrink: 0;
}
.card-clarify-send:hover { opacity: 0.9; }
.card-clarify-loading { font-size: 0.75rem; color: var(--text-muted); padding: 4px 0; }

/* Card Actions */
.confirmation-actions { display: flex; gap: 8px; align-items: center; flex-wrap: wrap; }
.confirm-btn,
.discard-btn,
.clarify-toggle-btn {
    display: inline-flex; align-items: center; gap: 6px;
    font-size: 0.82rem; border-radius: 12px; transition: var(--transition-fast);
}
.confirm-btn .btn-icon,
.discard-btn .btn-icon,
.clarify-toggle-btn .btn-icon {
    width: 14px; height: 14px; flex-shrink: 0;
}
.confirm-btn {
    padding: 7px 16px; font-weight: 500; color: var(--bg-deep);
    background: color-mix(in srgb, var(--confirm) 92%, var(--accent-moss));
}
.confirm-btn:hover { opacity: 0.88; }
.discard-btn {
    padding: 7px 16px; color: var(--text-secondary);
    border: 1px solid var(--border-subtle); background: transparent;
}
.discard-btn:hover { color: var(--text-primary); background: var(--interactive-hover-bg); border-color: var(--border-hover); }
.clarify-toggle-btn {
    padding: 7px 12px; color: var(--text-muted); margin-left: auto;
    border: 1px solid transparent;
}
.clarify-toggle-btn:hover {
    color: var(--accent-gold);
    background: color-mix(in srgb, var(--accent-primary) 8%, transparent);
    border-color: color-mix(in srgb, var(--accent-primary) 18%, transparent);
}
.confirmation-card[data-conf-type="new_task"] { border-left: 3px solid var(--accent-moss); }
.confirmation-card[data-conf-type="new_event"] { border-left: 3px dotted var(--accent-gold); }
.confirmation-card[data-conf-type="new_memory"], .confirmation-card[data-conf-type="auto_memory"] { border-left: 3px solid var(--accent-stone); }
.confirmation-card[data-conf-type="new_habit"] { border-left: 3px solid var(--accent-sakura); }
.confirmation-card[data-conf-type="edit_item"] { border-left: 3px solid var(--accent-gold); }
.confirmation-card[data-conf-type="edit_memory"] { border-left: 3px solid var(--accent-stone); }
.confirmation-card[data-conf-type="delete_item"] { border-left: 3px dashed var(--danger); }
.confirmation-card[data-conf-type="delete_memory"] { border-left: 3px dashed var(--danger); }
.confirmation-card.confirmed {
    border-color: color-mix(in srgb, var(--accent-moss) 24%, var(--border-subtle));
    opacity: 0.78; transform: scale(0.99);
}
.confirmation-card-compact {
    padding: 10px 14px; max-width: min(520px, 90%);
    cursor: pointer;
    background: color-mix(in srgb, var(--bg-surface-3) 32%, var(--bg-surface-2));
    border: 1px solid var(--border-subtle);
    box-shadow: none;
}
.confirmation-card-compact:hover { opacity: 0.98; background: var(--interactive-hover-bg); }
.confirmation-compact-status { font-size: 0.74rem; color: var(--accent-moss); margin-bottom: 3px; }
.confirmation-compact-title { font-size: 0.86rem; color: var(--text-secondary); line-height: 1.45; }
.confirmation-compact-meta .confirmation-details { margin: 4px 0 0; gap: 3px; font-size: 0.7rem; color: var(--text-muted); }
.confirmation-compact-meta .confirmation-details span[data-field] {
    padding: 0; border: none; background: transparent; gap: 6px;
}
.confirmation-compact-meta .confirm-detail-icon { width: 12px; height: 12px; opacity: 0.7; }
.confirmation-card.discarded { opacity: 0; transform: translateY(8px) scale(0.95); pointer-events: none; }

/* ============================================ 13. CONFIRM ALL BAR ============================================ */
#confirm-all-bar {
    align-self: flex-start; margin-top: 4px;
    animation: cardEnter 0.4s cubic-bezier(0.25,0.46,0.45,0.94);
}
.confirm-all-btn {
    padding: 8px 20px; font-size: 0.82rem; font-weight: 500;
    background: rgba(122,140,101,0.12); color: var(--accent-moss);
    border: 1px solid rgba(122,140,101,0.25); border-radius: 14px;
    transition: var(--transition-fast); backdrop-filter: blur(8px);
}
.confirm-all-btn:hover { background: rgba(122,140,101,0.2); }

/* ============================================ 14. SUGGESTIONS & INPUT ============================================ */
#suggestions-bar {
    display: flex; gap: 8px; padding: 6px 0 2px; flex-wrap: wrap; flex-shrink: 0;
    width: 100%;
    max-width: 780px;
    margin: 0;
    min-width: 0;
    overflow: hidden;
    opacity: 1;
    transform: translateY(0);
    transition:
        opacity 0.34s ease,
        transform 0.42s cubic-bezier(0.25,0.46,0.45,0.94),
        max-height 0.42s cubic-bezier(0.25,0.46,0.45,0.94),
        padding 0.42s cubic-bezier(0.25,0.46,0.45,0.94);
    max-height: 96px;
}
#suggestions-bar.suggestions-entering {
    opacity: 0;
    transform: translateY(10px);
    max-height: 0;
    padding-top: 0;
    padding-bottom: 0;
}
#suggestions-bar.suggestions-visible {
    opacity: 1;
    transform: translateY(0);
    max-height: 96px;
}
.action-chip {
    padding: 6px 14px; font-size: 0.79rem; color: color-mix(in srgb, var(--text-primary) 76%, var(--text-secondary));
    border: 1px solid var(--border-hover); border-radius: 18px;
    transition: var(--transition-smooth); white-space: nowrap;
    animation: suggestionChipIn 0.42s cubic-bezier(0.25,0.46,0.45,0.94) both;
    transform-origin: bottom left;
}
.action-chip:hover { color: var(--text-primary); background: var(--interactive-hover-bg); }
@keyframes suggestionChipIn {
    from { opacity: 0; transform: translateY(8px) scale(0.98); filter: blur(2px); }
    to { opacity: 1; transform: translateY(0) scale(1); filter: blur(0); }
}
@media (prefers-reduced-motion: reduce) {
    #suggestions-bar {
        transition: none;
    }

    .action-chip {
        animation: none;
    }
}
#input-area {
    padding: 8px 0 16px; padding-bottom: max(16px, env(safe-area-inset-bottom, 16px)); flex-shrink: 0; position: relative; z-index: 10;
    width: 100%;
    max-width: 780px;
    margin: 0;
}
.input-wrapper {
    display: flex; align-items: flex-end; gap: 6px;
    background: var(--bg-input); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px);
    border: 1px solid var(--border-subtle); border-radius: 18px;
    padding: 5px 5px 5px 16px; transition: border-color 0.3s ease;
    width: 100%;
    max-width: 780px;
    min-width: 0;
}
.input-wrapper:focus-within { border-color: rgba(196,169,106,0.2); }
#message-input {
    flex: 1; background: transparent; border: none; color: var(--text-primary);
    font-family: var(--font-sans); font-size: 0.9375rem; line-height: 1.5;
    resize: none; outline: none; max-height: 120px; padding: 7px 0;
}
#message-input::placeholder { color: var(--text-muted); }
.input-btn {
    width: 36px; height: 36px; display: flex; align-items: center; justify-content: center;
    border-radius: 12px; transition: var(--transition-fast); flex-shrink: 0; color: var(--text-secondary);
}
.input-btn:hover { color: var(--text-primary); background: var(--interactive-hover-bg); }
.input-btn svg { width: 18px; height: 18px; }
#send-btn { background: var(--accent-gold); color: var(--bg-deep); }
#send-btn:hover { opacity: 0.85; }
#mic-btn { position: relative; -webkit-user-select: none; user-select: none; touch-action: none; }
#mic-btn.recording { color: var(--accent-sakura); animation: micPulse 1.5s ease-in-out infinite; transform: scale(1.15); }
#mic-btn.recording::before {
    content: ''; position: absolute; inset: -4px; border-radius: 16px;
    border: 2px solid rgba(196,145,155,0.4); animation: micRipple 1.2s ease-out infinite;
}
#mic-btn.recording::after {
    content: ''; position: absolute; inset: -8px; border-radius: 20px;
    border: 1px solid rgba(196,145,155,0.2); animation: micRipple 1.2s ease-out infinite 0.4s;
}
@keyframes micPulse { 0%,100% { box-shadow: 0 0 0 0 rgba(196,145,155,0.3); } 50% { box-shadow: 0 0 12px 4px rgba(196,145,155,0.15); } }
@keyframes micRipple { 0% { transform: scale(0.85); opacity: 1; } 100% { transform: scale(1.4); opacity: 0; } }
.mic-hold-hint {
    position: absolute; bottom: 100%; left: 50%; transform: translateX(-50%);
    background: var(--bg-surface-2); border: 1px solid var(--border-subtle);
    border-radius: 8px; padding: 4px 8px; font-size: 0.65rem; color: var(--text-muted);
    white-space: nowrap; pointer-events: none; opacity: 0; transition: opacity 0.3s ease;
    margin-bottom: 6px;
}
#mic-btn:not(.recording) .mic-hold-hint.visible { opacity: 1; }

/* Image preview */
.image-preview {
    display: flex; align-items: center; gap: 8px;
    padding: 6px 8px; margin-bottom: 4px;
    background: rgba(255, 255, 255, 0.03); border: 1px solid var(--border-subtle);
    border-radius: 12px; animation: fadeInUp 0.25s ease-out;
}
.image-preview img {
    width: 56px; height: 56px; object-fit: cover;
    border-radius: 8px; border: 1px solid var(--border-subtle);
}
.image-preview-name {
    flex: 1; font-size: 0.75rem; color: var(--text-muted);
    overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
}
.image-preview-remove {
    width: 24px; height: 24px; border-radius: 6px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    color: var(--text-muted); font-size: 1rem; transition: var(--transition-fast);
}
.image-preview-remove:hover { color: var(--danger); background: rgba(176,96,96,0.1); }

/* Chat message image thumbnail */
.message-image {
    max-width: 200px; max-height: 160px; border-radius: 12px;
    border: 1px solid var(--border-subtle); margin-top: 6px;
    cursor: pointer; opacity: 0.9; transition: opacity 0.2s ease;
}
.message-image:hover { opacity: 1; }

/* Drag & drop overlay */
.drop-overlay {
    position: fixed; inset: 0; z-index: 9000;
    background: rgba(10, 10, 10, 0.7); backdrop-filter: blur(6px); -webkit-backdrop-filter: blur(6px);
    display: flex; align-items: center; justify-content: center;
    animation: fadeIn 0.2s ease-out; pointer-events: none;
}
.drop-overlay-inner {
    border: 2px dashed var(--accent-gold); border-radius: 24px;
    padding: 48px 64px; text-align: center;
}
.drop-overlay-icon { font-size: 2.5rem; margin-bottom: 12px; opacity: 0.6; }
.drop-overlay-text {
    font-family: var(--font-serif); font-size: 1rem; color: var(--accent-gold);
    letter-spacing: 0.04em;
}

/* Streaming cursor */
.streaming-cursor::after {
    content: ''; display: inline-block;
    width: 2px; height: 1em; background: var(--time-accent);
    margin-left: 2px; vertical-align: text-bottom;
    animation: cursorBlink 0.8s ease-in-out infinite;
}
@keyframes cursorBlink { 0%, 100% { opacity: 1; } 50% { opacity: 0; } }


@media (min-width: 769px) {
    #chat-column {
        position: relative;
    }
    #messages-area,
    #suggestions-bar,
    #input-area { position: relative; z-index: 1; }

    #messages-area { gap: var(--space-4); padding-top: var(--space-3); }

    .message-ai-text {
        font-size: 1rem;
        line-height: 1.68;
        padding-left: 16px;
    }
    .message-user {
        font-size: 1rem;
        line-height: 1.55;
        padding: 11px 17px;
    }

    .input-wrapper {
        border-radius: var(--radius-lg);
        padding: 6px 6px 6px 18px;
        box-shadow: var(--shadow-soft);
        transition: border-color var(--duration-quick) var(--ease-standard),
                    box-shadow var(--duration-quick) var(--ease-standard);
    }
    .input-wrapper:focus-within {
        border-color: color-mix(in srgb, var(--accent-primary) 42%, var(--border-subtle));
        box-shadow: var(--shadow-soft), var(--interactive-focus-ring);
    }
    #message-input {
        font-size: 1rem;
        line-height: 1.55;
        padding: 8px 0;
    }
    #message-input::placeholder {
        color: var(--text-muted);
        opacity: 0.9;
    }
    #input-area .input-btn {
        width: 38px;
        height: 38px;
    }
    #input-area .input-btn svg {
        width: 19px;
        height: 19px;
    }
}

.message-welcome {
    align-self: flex-start;
    max-width: min(92%, 640px);
    margin-top: var(--space-1);
}
.message-welcome .message-ai-text p:first-child {
    margin-top: 0;
}
.message-dev-stub.message-ai-text,
.message-ai-text.message-dev-stub {
    font-family: var(--font-sans);
    font-size: var(--fs-caption, 0.72rem);
    font-weight: 400;
    letter-spacing: 0.02em;
    color: var(--text-muted);
    line-height: 1.5;
    opacity: 0.82;
}

.message-ai .message-ai-text {
    position: relative;
}
.message:not(.message-welcome) .message-ai .message-ai-text::before {
    content: '';
    position: absolute;
    left: -2px;
    top: 0.55em;
    width: 7px;
    height: 7px;
    border-radius: 50%;
    border: 1.5px solid color-mix(in srgb, var(--time-accent) 48%, transparent);
    opacity: 0.55;
}

.message-user {
    border-radius: var(--radius-lg) var(--radius-lg) var(--radius-sm) var(--radius-lg);
    border-color: color-mix(in srgb, var(--border-subtle) 88%, var(--accent-primary) 12%);
    box-shadow: var(--shadow-soft);
}

#suggestions-bar .action-chip {
    padding: 8px 16px;
    border-radius: 999px;
    border-color: color-mix(in srgb, var(--border-subtle) 90%, var(--accent-primary) 10%);
    background: color-mix(in srgb, var(--bg-surface-2) 88%, transparent);
    font-size: 0.82rem;
    line-height: 1.35;
    letter-spacing: 0.01em;
}
#suggestions-bar .action-chip:hover {
    border-color: color-mix(in srgb, var(--accent-primary) 28%, var(--border-subtle));
    background: var(--interactive-hover-bg);
}

@media (max-width: 768px) {
    .message-welcome {
        max-width: 100%;
    }
    .input-wrapper {
        border-radius: var(--radius-lg);
        box-shadow: var(--shadow-soft);
    }
    .input-wrapper:focus-within {
        border-color: color-mix(in srgb, var(--accent-primary) 38%, var(--border-subtle));
        box-shadow: var(--shadow-soft), var(--interactive-focus-ring);
    }
}

@media (prefers-reduced-motion: reduce) {
    .message-welcome,
    #suggestions-bar .action-chip {
        animation: none;
    }
}