/* ─── Theme tokens (online + offline) ─── */
:root,
html[data-theme="dark"] {
    color-scheme: dark;
    --wa-bg: #1c1c1c;
    --wa-bg-sidebar: #161616;
    --wa-bg-panel: #2a2a2a;
    --wa-bg-input: #2b2b2b;
    --wa-text: #f0f0f0;
    --wa-text-soft: #ececec;
    --wa-text-muted: #888888;
    --wa-border: #2a2a2a;
    --wa-border-soft: #444444;
    --wa-accent: #4ade80;
}

html[data-theme="light"] {
    color-scheme: light;
    --wa-bg: #f3f3f3;
    --wa-bg-sidebar: #ffffff;
    --wa-bg-panel: #ffffff;
    --wa-bg-input: #ffffff;
    --wa-text: #1a1a1a;
    --wa-text-soft: #222222;
    --wa-text-muted: #666666;
    --wa-border: #dddddd;
    --wa-border-soft: #cccccc;
    --wa-accent: #16a34a;
}

/* ─── Settings button ─── */
#settings-btn {
    width: auto;
    min-width: 36px;
    background: none;
    border: 1px solid var(--wa-border-soft, #444);
    color: var(--wa-text-soft, #ccc);
    padding: 8px 12px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 1.1rem;
    line-height: 1;
    font-family: inherit;
    transition: all 0.2s;
    text-align: center;
}

#sidebar-footer #settings-btn {
    width: 100%;
}

.sidebar-footer-actions {
    display: flex;
    flex-direction: column;
    gap: 8px;
}

#sidebar-guest-actions[hidden],
#sidebar-guest-actions.is-hidden {
    display: none !important;
}

#sidebar-pricing-btn {
    display: none;
    width: 100%;
    align-items: center;
    justify-content: flex-start;
    gap: 8px;
    background: none;
    border: 1px solid var(--wa-border-soft, #444);
    color: var(--wa-text-soft, #ccc);
    padding: 8px 14px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    font-family: inherit;
    line-height: 1.2;
    transition: all 0.2s;
    text-align: left;
    box-sizing: border-box;
}

#sidebar-pricing-btn:hover {
    border-color: var(--wa-accent, #4ade80);
    color: var(--wa-accent, #4ade80);
}

#sidebar-pricing-btn:hover .pricing-star-icon--gold {
    color: #fde047;
}

.pricing-star-icon--gold {
    color: #facc15;
}

.sidebar-pricing-label,
.help-btn-label {
    display: none;
}

@media (min-width: 769px) {
    #sidebar-guest-actions:not([hidden]) .sidebar-pricing-label,
    #sidebar-guest-actions:not([hidden]) .help-btn-label {
        display: inline;
    }
}

.settings-btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    font-size: 1rem;
    line-height: 1;
}

.sidebar-help-wrap {
    position: relative;
    width: 100%;
}

#sidebar-help-btn {
    width: 100%;
    display: inline-flex;
    align-items: center;
    justify-content: flex-start;
    gap: 8px;
    background: none;
    border: 1px solid var(--wa-border-soft, #444);
    color: var(--wa-text-soft, #ccc);
    padding: 8px 14px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 0.85rem;
    font-family: inherit;
    line-height: 1.2;
    transition: all 0.2s;
    text-align: left;
    box-sizing: border-box;
}

#sidebar-help-btn:hover,
.sidebar-help-wrap.is-open #sidebar-help-btn {
    border-color: var(--wa-accent, #4ade80);
    color: var(--wa-accent, #4ade80);
}

.help-btn-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    width: 1rem;
    height: 1rem;
    border-radius: 50%;
    border: 1px solid currentColor;
    font-size: 0.72rem;
    font-weight: 700;
    line-height: 1;
}

.sidebar-help-menu {
    position: absolute;
    left: 0;
    right: 0;
    bottom: calc(100% + 6px);
    z-index: 30;
    background: var(--wa-bg-panel, #2a2a2a);
    border: 1px solid var(--wa-border-soft, #444);
    border-radius: 8px;
    overflow-x: hidden;
    overflow-y: auto;
    max-height: min(70vh, 280px);
    -webkit-overflow-scrolling: touch;
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.35);
}

.sidebar-help-menu[hidden] {
    display: none !important;
}

.sidebar-help-menu a {
    display: block;
    padding: 10px 14px;
    color: var(--wa-text-soft, #ccc);
    text-decoration: none;
    font-size: 0.82rem;
    line-height: 1.35;
    border-bottom: 1px solid var(--wa-border, #2a2a2a);
    transition: background-color 0.2s, color 0.2s;
}

.sidebar-help-menu a:last-child {
    border-bottom: none;
}

.sidebar-help-menu a:hover {
    background: rgba(255, 255, 255, 0.05);
    color: var(--wa-accent, #4ade80);
}

@media (min-width: 769px) {
    #main-header #pricing-btn {
        display: none !important;
    }

    #sidebar-guest-actions:not([hidden]) #sidebar-pricing-btn {
        display: inline-flex;
    }
}

@media (max-width: 768px) {
    #sidebar-guest-actions:not([hidden]) #sidebar-pricing-btn {
        display: inline-flex !important;
        width: 100%;
        justify-content: flex-start;
    }

    #sidebar-guest-actions:not([hidden]) #sidebar-help-btn {
        width: 100%;
        justify-content: flex-start;
    }

    #sidebar-guest-actions:not([hidden]) .help-btn-label,
    #sidebar-guest-actions:not([hidden]) .sidebar-pricing-label {
        display: inline !important;
    }

    .profile-upgrade-btn {
        padding: 6px 10px;
        font-size: 0.62rem;
    }
}

#settings-btn:hover {
    border-color: var(--wa-accent, #4ade80);
    color: var(--wa-accent, #4ade80);
}

#header-actions {
    position: fixed;
    top: 16px;
    right: 16px;
    z-index: 9999;
    display: flex;
    align-items: center;
    gap: 8px;
}

#header-actions #settings-btn {
    width: auto;
    padding: 6px 10px;
    border-radius: 20px;
}

#header-actions #offline-indicator {
    position: static;
}

/* ─── Settings modal (online + offline) ─── */
#settings-modal {
    z-index: 100002;
    padding: max(16px, env(safe-area-inset-top)) max(16px, env(safe-area-inset-right)) max(16px, env(safe-area-inset-bottom)) max(16px, env(safe-area-inset-left));
    box-sizing: border-box;
}

#settings-modal .settings-modal-box {
    text-align: left !important;
    width: min(420px, 100%);
    max-width: 100%;
    max-height: min(90vh, 680px);
    overflow-x: hidden;
    overflow-y: auto;
    margin: auto;
    box-sizing: border-box;
    -webkit-overflow-scrolling: touch;
}

#settings-modal .settings-modal-box,
#settings-modal.switch-modal-overlay .switch-modal-box.settings-modal-box {
    pointer-events: auto;
}

body.whyai-settings-open {
    overflow: hidden;
}

@media (max-width: 520px) {
    #settings-modal .settings-row {
        flex-direction: column;
        align-items: stretch;
        gap: 10px;
    }

    #settings-modal .settings-segmented {
        width: 100%;
    }

    #settings-modal .settings-segmented button {
        flex: 1;
        min-width: 0;
    }

    #settings-modal .settings-toggle {
        align-self: flex-end;
    }
}

html[data-theme="light"] #settings-modal .settings-modal-box {
    background: #ffffff !important;
    color: #1a1a1a !important;
    border-color: #cccccc !important;
    box-shadow: 0 10px 40px rgba(0, 0, 0, 0.12) !important;
}

html[data-theme="light"] #settings-modal .settings-modal-box h2 {
    color: #111111 !important;
}

html[data-theme="light"] #settings-modal .settings-row {
    border-bottom-color: #e5e5e5 !important;
}

html[data-theme="light"] #settings-modal .settings-label {
    color: #222222 !important;
}

html[data-theme="light"] #settings-modal .settings-hint {
    color: #666666 !important;
}

html[data-theme="light"] #settings-modal .settings-segmented {
    border-color: #cccccc !important;
}

html[data-theme="light"] #settings-modal .settings-segmented button {
    background: #f5f5f5 !important;
    color: #555555 !important;
}

html[data-theme="light"] #settings-modal .settings-segmented button + button {
    border-left-color: #cccccc !important;
}

html[data-theme="light"] #settings-modal .settings-segmented button.active {
    background: #e8f5e9 !important;
    color: #16a34a !important;
}

html[data-theme="light"] .settings-name-field input {
    background: #fff !important;
    border-color: #cccccc !important;
    color: #111 !important;
}

html[data-theme="light"] #settings-modal .close-switch-btn {
    color: #444444 !important;
    border-color: #cccccc !important;
}

html[data-theme="light"] #settings-modal .close-switch-btn:hover {
    color: #111111 !important;
    border-color: #999999 !important;
}

html[data-theme="light"] #header-actions #settings-btn {
    background: #ffffff;
    border-color: #cccccc;
    color: #333333;
}

/* ─── Settings modal ─── */
.settings-modal-box {
    text-align: left;
    max-width: 420px;
    background: var(--wa-bg-panel, #2a2a2a) !important;
    color: var(--wa-text, #ececec) !important;
    border-color: var(--wa-border-soft, #444) !important;
}

.settings-modal-box h2 {
    color: var(--wa-text-soft, #fff) !important;
}

.settings-row {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 16px;
    padding: 14px 0;
    border-bottom: 1px solid var(--wa-border, #333);
}

.settings-row:last-of-type {
    border-bottom: none;
}

.settings-row.is-disabled {
    opacity: 0.55;
}

.settings-row-text {
    flex: 1;
    min-width: 0;
}

.settings-label {
    display: block;
    font-size: 0.9rem;
    color: var(--wa-text-soft, #ececec);
    margin-bottom: 2px;
}

.settings-hint {
    display: block;
    font-size: 0.75rem;
    color: var(--wa-text-muted, #888);
    line-height: 1.35;
}

.settings-hint.pro-only {
    color: #ff9800;
    margin-top: 4px;
}

#settings-pro-row[hidden] {
    display: none !important;
}

#settings-pro-row .settings-hint {
    display: block;
    margin-top: 4px;
    color: #4ade80;
}

#settings-pro-row.settings-pro-link {
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s;
    border-radius: 10px;
    margin: 0 -4px;
    padding-left: 4px;
    padding-right: 4px;
}

#settings-pro-row.settings-pro-link:hover,
#settings-pro-row.settings-pro-link:focus-visible {
    background: rgba(74, 222, 128, 0.08);
    outline: none;
}

#settings-pro-row:not([hidden]) #settings-billing-label {
    font-weight: 700;
}

.settings-name-row {
    flex-direction: column;
    align-items: stretch;
}

.settings-name-field {
    display: flex;
    gap: 8px;
    margin-top: 10px;
    width: 100%;
}

.settings-name-field input {
    flex: 1;
    min-width: 0;
    padding: 9px 12px;
    border-radius: 8px;
    border: 1px solid var(--wa-border-soft, #444);
    background: var(--wa-bg, #1a1a1a);
    color: var(--wa-text, #ececec);
    font-size: 0.9rem;
    font-family: inherit;
}

.settings-name-field input:focus {
    outline: none;
    border-color: #4ade80;
}

.settings-name-field button {
    flex-shrink: 0;
    padding: 9px 14px;
    border-radius: 8px;
    border: 1px solid #4ade80;
    background: rgba(74, 222, 128, 0.12);
    color: #4ade80;
    font-size: 0.85rem;
    font-family: inherit;
    cursor: pointer;
    transition: background 0.2s;
}

.settings-name-field button:hover:not(:disabled) {
    background: rgba(74, 222, 128, 0.2);
}

.settings-name-field button:disabled {
    opacity: 0.6;
    cursor: not-allowed;
}

.settings-name-status {
    margin: 8px 0 0;
    font-size: 0.75rem;
    line-height: 1.35;
}

.settings-name-status.is-success {
    color: #4ade80;
}

.settings-name-status.is-error {
    color: #f87171;
}

#settings-name-row[hidden] {
    display: none !important;
}

#settings-pro-row .settings-hint:empty {
    display: none;
}

.settings-segmented {
    display: flex;
    flex-shrink: 0;
    border: 1px solid var(--wa-border-soft, #444);
    border-radius: 8px;
    overflow: hidden;
}

.settings-segmented button {
    background: var(--wa-bg, #1a1a1a);
    border: none;
    color: var(--wa-text-muted, #aaa);
    padding: 8px 14px;
    cursor: pointer;
    font-size: 0.8rem;
    font-family: inherit;
    transition: all 0.15s;
    appearance: none;
    -webkit-appearance: none;
    line-height: 1.2;
    min-height: 36px;
}

.settings-segmented button + button {
    border-left: 1px solid var(--wa-border-soft, #444);
}

.settings-segmented button.active {
    background: var(--wa-bg-panel, #333);
    color: var(--wa-accent, #4ade80);
}

.settings-segmented button:hover:not(.active) {
    color: var(--wa-text-soft, #ccc);
}

.settings-toggle {
    position: relative;
    display: inline-block;
    width: 44px;
    height: 24px;
    flex-shrink: 0;
}

.settings-toggle input {
    opacity: 0;
    width: 0;
    height: 0;
}

.settings-toggle-slider {
    position: absolute;
    inset: 0;
    background: var(--wa-border-soft, #444);
    border-radius: 24px;
    cursor: pointer;
    transition: background 0.2s;
}

.settings-toggle-slider::before {
    content: '';
    position: absolute;
    width: 18px;
    height: 18px;
    left: 3px;
    bottom: 3px;
    background: #ececec;
    border-radius: 50%;
    transition: transform 0.2s;
}

.settings-toggle input:checked + .settings-toggle-slider {
    background: var(--wa-accent, #4ade80);
}

.settings-toggle input:checked + .settings-toggle-slider::before {
    transform: translateX(20px);
}

.settings-toggle input:disabled + .settings-toggle-slider {
    opacity: 0.45;
    cursor: not-allowed;
}

#settings-modal .close-switch-btn {
    width: 100%;
    margin-top: 8px;
}

.switch-modal-box {
    background: var(--wa-bg-panel, #2a2a2a) !important;
    color: var(--wa-text, #ececec) !important;
    border-color: var(--wa-border-soft, #444) !important;
}

.switch-modal-box h2 {
    color: var(--wa-text-soft, #fff) !important;
}

.mode-option {
    background: var(--wa-bg, #1a1a1a) !important;
    border-color: var(--wa-border-soft, #444) !important;
}

.mode-option p {
    color: var(--wa-text-muted, #aaa) !important;
}

/* ─── Theme overrides (online) ─── */
html[data-theme="light"] .sidebar-header,
html[data-theme="light"] .sidebar-help-menu {
    box-shadow: 0 8px 24px rgba(0, 0, 0, 0.12);
}

html[data-theme="light"] .sidebar-help-menu a:hover {
    background: rgba(0, 0, 0, 0.04);
}

html[data-theme="light"] #sidebar-footer,
html[data-theme="light"] .sidebar-footer-section {
    border-color: var(--wa-border) !important;
}

html[data-theme="light"] #new-conv-btn {
    background: var(--wa-bg-panel) !important;
    color: var(--wa-text) !important;
    border-color: var(--wa-border-soft) !important;
}

html[data-theme="light"] #conv-search {
    background: var(--wa-bg-panel) !important;
    color: var(--wa-text) !important;
    border-color: var(--wa-border-soft) !important;
}

html[data-theme="light"] #conv-search:focus {
    border-color: #22c55e !important;
}

html[data-theme="light"] .conv-item:hover {
    background: #f0f0f0 !important;
}

html[data-theme="light"] .conv-title {
    color: var(--wa-text) !important;
}

html[data-theme="light"] .conv-preview,
html[data-theme="light"] .conv-time,
html[data-theme="light"] #conv-list-empty {
    color: var(--wa-text-muted) !important;
}

html[data-theme="light"] .profile-user-main:hover {
    background: rgba(0, 0, 0, 0.04);
}

html[data-theme="light"] .profile-user-menu {
    background: #fff;
    box-shadow: 0 12px 32px rgba(0, 0, 0, 0.12);
}

html[data-theme="light"] .profile-menu-item:hover {
    background: rgba(0, 0, 0, 0.04);
}

html[data-theme="light"] #profile-name {
    color: var(--wa-text, #1a1a1a);
}

html[data-theme="light"] .profile-upgrade-btn {
    background: #f3f3f3;
    border-color: #ddd;
    color: #222;
}

html[data-theme="light"] #profile-sign-in {
    border-color: var(--wa-border-soft) !important;
    color: var(--wa-text-muted) !important;
}

html[data-theme="light"] #profile-email {
    color: #444 !important;
}

html[data-theme="light"] #sidebar-toggle,
html[data-theme="light"] #pricing-btn,
html[data-theme="light"] #online-indicator,
html[data-theme="light"] #subscribe-now-btn {
    color: var(--wa-text) !important;
    border-color: var(--wa-border-soft) !important;
}

html[data-theme="light"] #subscribe-now-btn {
    color: var(--wa-accent, #16a34a) !important;
    border-color: var(--wa-accent, #16a34a) !important;
}

html[data-theme="light"] .message.user {
    background: #333 !important;
    color: #fff !important;
}

html[data-theme="light"] .message.ia {
    background: #fff !important;
    color: #222 !important;
    border: 1px solid var(--wa-border) !important;
}

html[data-theme="light"] #chat-form,
html[data-theme="light"] #guest-chat-form,
html[data-theme="light"] .guest-login-bar {
    --form-bg: #ffffff;
    --form-text: #1a1a1a;
    --form-muted: #666666;
    --form-border: #dddddd;
    --form-border-soft: #cccccc;
    --form-input-bg: #ffffff;
    --form-btn-bg: #333333;
    --form-btn-text: #ffffff;
    --form-accent: #16a34a;
    --form-attach-bg: #eeeeee;
    --form-attach-hover: #e0e0e0;
    background: var(--form-bg) !important;
    border-top-color: var(--form-border) !important;
    color: var(--form-text) !important;
}

html[data-theme="light"] #chat-form #user-input,
html[data-theme="light"] #chat-form textarea,
html[data-theme="light"] #guest-chat-form #guest-input,
html[data-theme="light"] #guest-chat-form textarea {
    background: var(--form-input-bg) !important;
    color: var(--form-text) !important;
    border-color: var(--form-border-soft) !important;
}

html[data-theme="light"] #chat-form #user-input::placeholder,
html[data-theme="light"] #chat-form textarea::placeholder,
html[data-theme="light"] #guest-chat-form #guest-input::placeholder,
html[data-theme="light"] #guest-chat-form textarea::placeholder {
    color: #999999 !important;
}

html[data-theme="light"] #chat-form #user-input:focus,
html[data-theme="light"] #chat-form textarea:focus,
html[data-theme="light"] #guest-chat-form #guest-input:focus,
html[data-theme="light"] #guest-chat-form textarea:focus {
    border-color: var(--form-accent) !important;
    box-shadow: 0 0 0 2px rgba(22, 163, 74, 0.15);
}

html[data-theme="light"] #chat-form #send-button,
html[data-theme="light"] #guest-chat-form #guest-send-btn {
    background: var(--form-btn-bg) !important;
    color: var(--form-btn-text) !important;
    border-color: var(--form-btn-bg) !important;
}

html[data-theme="light"] #chat-form #send-button:hover,
html[data-theme="light"] #guest-chat-form #guest-send-btn:hover {
    background: #444444 !important;
    border-color: #444444 !important;
}

html[data-theme="light"] #chat-form #send-button:disabled,
html[data-theme="light"] #guest-chat-form #guest-send-btn:disabled {
    background: #e8e8e8 !important;
    color: #999999 !important;
    border-color: #dddddd !important;
}

html[data-theme="light"] #chat-form #image-button,
html[data-theme="light"] #guest-chat-form #guest-image-button {
    color: #333333 !important;
    background: var(--form-attach-bg) !important;
    border-color: var(--form-border-soft) !important;
}

html[data-theme="light"] #chat-form #image-button:hover,
html[data-theme="light"] #guest-chat-form #guest-image-button:hover {
    background: var(--form-attach-hover) !important;
}

html[data-theme="light"] #chat-form .disclaimer,
html[data-theme="light"] #guest-chat-form .disclaimer {
    color: var(--form-muted) !important;
}

html[data-theme="light"] .guest-login-bar-sub {
    color: #666666 !important;
}

html[data-theme="light"] #chat-form #user-input::-webkit-scrollbar-track,
html[data-theme="light"] #guest-chat-form #guest-input::-webkit-scrollbar-track {
    background: #eeeeee !important;
}

html[data-theme="light"] #chat-form #user-input::-webkit-scrollbar-thumb,
html[data-theme="light"] #guest-chat-form #guest-input::-webkit-scrollbar-thumb {
    background: #bbbbbb !important;
    border-color: #eeeeee !important;
}

html[data-theme="light"] #preview-container {
    background: #f5f5f5 !important;
    border-color: #dddddd !important;
}

html[data-theme="light"] #empty-state p {
    color: var(--wa-text-muted) !important;
}

html[data-theme="light"] #empty-state h3 {
    color: var(--wa-text) !important;
}

.whyai-interface-params input[type="range"]:disabled {
    opacity: 0.45;
}

html[data-theme="light"] .auth-modal-box {
    background: var(--wa-bg-panel) !important;
    border-color: var(--wa-border-soft) !important;
    color: var(--wa-text) !important;
}

html[data-theme="light"] .auth-modal-box h2 {
    color: var(--wa-text) !important;
}

html[data-theme="light"] .auth-modal-box .desc,
html[data-theme="light"] .auth-switch,
html[data-theme="light"] .auth-legal {
    color: var(--wa-text-muted) !important;
}

html[data-theme="light"] .auth-input {
    background: var(--wa-bg-input) !important;
    color: var(--wa-text) !important;
    border-color: var(--wa-border-soft) !important;
}

html[data-theme="light"] .google-btn {
    background: var(--wa-bg-panel) !important;
    border-color: var(--wa-border-soft) !important;
    color: var(--wa-text) !important;
}

html[data-theme="light"] .conv-item .del-conv-btn {
    background: #f0f0f0 !important;
    border-color: #cccccc !important;
    color: #666666 !important;
}

html[data-theme="light"] .conv-item .del-conv-btn:hover {
    background: #fff0f0 !important;
    border-color: #ff6b6b !important;
    color: #ff6b6b !important;
}

html[data-theme="light"] #pro-banner {
    color: #555555 !important;
}

html[data-theme="light"] #pro-banner a {
    color: var(--wa-accent, #16a34a) !important;
}

/* Image generation modal — light theme */
html[data-theme="light"] .image-modal-box {
    background: #ffffff !important;
    border-color: #dddddd !important;
    color: #222222 !important;
    box-shadow: 0 20px 60px rgba(0, 0, 0, 0.12) !important;
}

html[data-theme="light"] .image-modal-box h2 {
    background: linear-gradient(135deg, #16a34a, #15803d);
    -webkit-background-clip: text;
    background-clip: text;
    -webkit-text-fill-color: transparent;
}

html[data-theme="light"] .image-modal-subtitle,
html[data-theme="light"] .suggestions-title,
html[data-theme="light"] .option-label,
html[data-theme="light"] .char-counter {
    color: #666666 !important;
}

html[data-theme="light"] .suggestion-chip {
    background: #f5f5f5 !important;
    border-color: #dddddd !important;
    color: #555555 !important;
}

html[data-theme="light"] .suggestion-chip:hover {
    background: var(--wa-accent, #16a34a) !important;
    border-color: var(--wa-accent, #16a34a) !important;
    color: #ffffff !important;
}

html[data-theme="light"] #image-prompt,
html[data-theme="light"] .option-select {
    background: #ffffff !important;
    border-color: #cccccc !important;
    color: #1a1a1a !important;
}

html[data-theme="light"] #image-prompt:focus,
html[data-theme="light"] .option-select:focus {
    border-color: var(--wa-accent, #16a34a) !important;
    background: #ffffff !important;
}

html[data-theme="light"] #image-prompt::placeholder {
    color: #999999 !important;
}

html[data-theme="light"] .image-modal-box::-webkit-scrollbar-track {
    background: #eeeeee !important;
}

html[data-theme="light"] .image-modal-box::-webkit-scrollbar-thumb {
    background: #bbbbbb !important;
}