/* ═══ Focus Visible States (all new interactive elements) ═══ */

.ia-chip:focus-visible,
.ia-send-btn:focus-visible,
.ia-clear-btn:focus-visible,
.ia-export-btn:focus-visible,
.ia-populate-btn-sm:focus-visible,
.ia-map-expand-btn:focus-visible,
.ia-section-header:focus-visible,
.ia-tab:focus-visible {
    outline: 2px solid var(--apple-blue);
    outline-offset: 2px;
}


/* ═══ Reduced Motion ═══ */

@media (prefers-reduced-motion: reduce) {
    .ia-msg,
    .ia-section,
    .ia-chip-row,
    .ia-hazard-badge,
    .ia-appreciation-badge {
        animation: none !important;
        transition: none !important;
    }
    .ia-dot { animation: none !important; }
    .ia-section-chevron { transition: none !important; }
}

/* ═══ Drag-and-Drop Overlay ═══ */

.ia-chat-card {
    position: relative;
}

.ia-drop-overlay {
    display: none;
    position: absolute;
    inset: 0;
    z-index: 50;
    background: rgba(0, 122, 255, 0.04);
    backdrop-filter: blur(6px);
    -webkit-backdrop-filter: blur(6px);
    border: 2px dashed var(--apple-blue);
    border-radius: 16px;
    align-items: center;
    justify-content: center;
    pointer-events: none;
    animation: iaDropFadeIn 0.2s ease;
}

.ia-chat-card.ia-drag-over .ia-drop-overlay {
    display: flex;
}

@keyframes iaDropFadeIn {
    from { opacity: 0; }
    to   { opacity: 1; }
}

.ia-drop-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 10px;
    text-align: center;
    padding: 32px;
}

.ia-drop-icon {
    color: var(--apple-blue);
    opacity: 0.7;
    animation: iaDropBounce 1.5s ease infinite;
}

@keyframes iaDropBounce {
    0%, 100% { transform: translateY(0); }
    50%      { transform: translateY(-6px); }
}

.ia-drop-title {
    font-size: 16px;
    font-weight: 700;
    color: var(--apple-blue);
}

.ia-drop-subtitle {
    font-size: 12px;
    color: var(--text-secondary);
    max-width: 220px;
}

body.dark-mode .ia-drop-overlay {
    background: rgba(10, 132, 255, 0.10);
    border-color: #0A84FF;
}

/* Processing state message in chat */
.ia-msg-doc-processing {
    border-left: 3px solid var(--apple-blue);
    background: rgba(0, 122, 255, 0.04);
}
body.dark-mode .ia-msg-doc-processing {
    background: rgba(10, 132, 255, 0.08);
}

.ia-doc-field-count {
    display: inline-block;
    background: var(--apple-blue);
    color: #fff;
    padding: 2px 8px;
    border-radius: 10px;
    font-size: 12px;
    font-weight: 700;
    margin-right: 4px;
}

/* ═══ Desktop Wide-Screen Enhancements ═══ */

@media (min-width: 1280px) {
    .ia-layout {
        grid-template-columns: 1fr 460px;
    }
    .ia-chat-pane {
        padding: 16px 20px;
    }
    .ia-sidebar-pane {
        padding: 16px;
    }
    .ia-messages {
        padding: 18px 22px;
    }
    .ia-input-row {
        padding: 14px 22px 16px;
    }
    .ia-chip-row {
        padding: 10px 22px 14px;
    }
}

@media (min-width: 1440px) {
    .ia-layout {
        grid-template-columns: 1fr 500px;
    }
}

/* ═══ Enhanced Scrollbar (WebKit) ═══ */

.ia-messages::-webkit-scrollbar,
.ia-sidebar-pane::-webkit-scrollbar {
    width: 6px;
}

.ia-messages::-webkit-scrollbar-track,
.ia-sidebar-pane::-webkit-scrollbar-track {
    background: transparent;
}

.ia-messages::-webkit-scrollbar-thumb,
.ia-sidebar-pane::-webkit-scrollbar-thumb {
    background: rgba(0, 0, 0, 0.1);
    border-radius: 3px;
}
.ia-messages::-webkit-scrollbar-thumb:hover,
.ia-sidebar-pane::-webkit-scrollbar-thumb:hover {
    background: rgba(0, 0, 0, 0.2);
}

body.dark-mode .ia-messages::-webkit-scrollbar-thumb,
body.dark-mode .ia-sidebar-pane::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.08);
}
body.dark-mode .ia-messages::-webkit-scrollbar-thumb:hover,
body.dark-mode .ia-sidebar-pane::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.15);
}

/* ═══ Dark Mode Polish — Surface Elevation Hierarchy ═══ */

body.dark-mode .ia-tab-bar {
    background: #111111;
    border-bottom-color: #2C2C2E;
}

body.dark-mode .ia-chat-pane {
    border-right-color: #2C2C2E;
}

body.dark-mode .ia-card.ia-chat-card {
    background: #111111;
}

body.dark-mode .ia-input-row {
    border-top-color: #2C2C2E;
}

body.dark-mode .ia-section-body {
    border-top-color: #2C2C2E;
}

body.dark-mode .ia-sidebar-card-header {
    border-bottom-color: #2C2C2E;
}

body.dark-mode .ia-map-grid {
    background: #2C2C2E;
}

body.dark-mode .ia-export-btn {
    border-color: #38383A;
    background: #1C1C1E;
}
body.dark-mode .ia-export-btn:hover {
    border-color: #0A84FF;
    color: #0A84FF;
}

body.dark-mode .ia-copy-btn {
    border-color: #38383A;
    background: #1C1C1E;
}

body.dark-mode .ia-populate-btn-sm {
    background: #32D74B;
}

body.dark-mode .ia-input {
    border-color: #38383A;
    background: #1C1C1E;
}

body.dark-mode .ia-input-icon-btn {
    border-color: #38383A;
    background: #1C1C1E;
}

body.dark-mode .ia-drop-overlay {
    background: rgba(10, 132, 255, 0.08);
    border-color: rgba(10, 132, 255, 0.4);
}

/* Section badge dark mode polish */
body.dark-mode .ia-section-badge {
    background: #2C2C2E;
}
body.dark-mode .ia-section-done .ia-section-badge {
    background: rgba(50, 215, 75, 0.12);
    color: #32D74B;
}
body.dark-mode .ia-section-partial .ia-section-badge {
    background: rgba(10, 132, 255, 0.12);
    color: #0A84FF;
}

/* Mobile dark mode full-bleed chat */
@media (max-width: 767px) {
    body.dark-mode .ia-card.ia-chat-card {
        background: #000000;
    }
    body.dark-mode .ia-sidebar-pane {
        background: #000000;
    }
}