/* =========================================================
   NEO UI V2 — CHATGPT-INSPIRED SYSTEM
   Visual layer only. HTML and JS remain unchanged.
   ========================================================= */

:root {
    --v2-bg: #ffffff;
    --v2-sidebar: #f9f9f9;
    --v2-surface: #ffffff;
    --v2-surface-soft: #f4f4f4;
    --v2-hover: #ececec;
    --v2-border: rgba(0, 0, 0, 0.08);

    --v2-text: #111111;
    --v2-muted: #6b6b6b;

    --v2-sidebar-width: 260px;
    --v2-content-width: 760px;
    --v2-composer-width: 768px;

    --v2-radius-sm: 8px;
    --v2-radius-md: 12px;
    --v2-radius-lg: 16px;
    --v2-radius-pill: 999px;

    --v2-shadow:
        0 1px 2px rgba(0, 0, 0, 0.03),
        0 8px 28px rgba(0, 0, 0, 0.05);

    --v2-transition: 150ms ease;
}

body.dark-mode {
    --v2-bg: #212121;
    --v2-sidebar: #171717;
    --v2-surface: #212121;
    --v2-surface-soft: #2f2f2f;
    --v2-hover: #2a2a2a;
    --v2-border: rgba(255, 255, 255, 0.08);

    --v2-text: #ececec;
    --v2-muted: #9b9b9b;

    --v2-shadow:
        0 1px 2px rgba(0, 0, 0, 0.18),
        0 12px 34px rgba(0, 0, 0, 0.28);
}

*,
*::before,
*::after {
    box-sizing: border-box;
}

html,
body {
    width: 100%;
    max-width: 100%;
    overflow: hidden;
}

body {
    background: var(--v2-bg);
    color: var(--v2-text);
    font-family:
        -apple-system,
        BlinkMacSystemFont,
        "SF Pro Text",
        "Segoe UI",
        Roboto,
        Helvetica,
        Arial,
        sans-serif;
    -webkit-font-smoothing: antialiased;
    text-rendering: optimizeLegibility;
}

/* SIDEBAR */

.sidebar {
    width: var(--v2-sidebar-width) !important;
    min-width: var(--v2-sidebar-width) !important;
    max-width: var(--v2-sidebar-width) !important;
    background: var(--v2-sidebar) !important;
    border-right: 1px solid transparent;
}

.sidebar-header {
    height: 52px !important;
    padding: 6px 10px !important;
}

.brand-button {
    gap: 10px !important;
    padding: 6px 8px !important;
    border-radius: var(--v2-radius-sm) !important;
}

.brand-copy strong {
    font-size: 14px !important;
    line-height: 1.2 !important;
}

.brand-copy small {
    font-size: 10.5px !important;
    margin-top: 2px;
}

.sidebar-content {
    padding: 6px 8px 12px !important;
}

.new-chat-btn,
#sidebarPersonalitiesBtn {
    min-height: 40px !important;
    padding: 0 10px !important;
    gap: 10px !important;
    border-radius: var(--v2-radius-sm) !important;
    font-size: 13.5px !important;
}

.sidebar-nav-icon {
    width: 20px !important;
    height: 20px !important;
    flex-basis: 20px !important;
}

.sidebar-nav-icon svg {
    width: 18px !important;
    height: 18px !important;
}

.history-section {
    margin-top: 14px !important;
}

.section-title {
    padding: 8px 10px 5px !important;
    font-size: 11px !important;
    font-weight: 600 !important;
}

.history-item {
    height: 36px !important;
    min-height: 36px !important;
    padding: 8px 34px 8px 10px !important;
    font-size: 13.5px !important;
}

.user-profile-btn {
    min-height: 48px !important;
    padding: 6px 8px !important;
    border-radius: var(--v2-radius-md) !important;
}

#userAvatar {
    width: 30px !important;
    height: 30px !important;
}

.user-name {
    font-size: 12.5px !important;
}

.user-badge {
    font-size: 10px !important;
}

/* MAIN SHELL */

.app-shell {
    background: var(--v2-bg) !important;
    min-width: 0;
}

.top-bar {
    height: 52px !important;
    padding: 0 20px !important;
}

.model-badge {
    padding: 6px 8px !important;
    border-radius: var(--v2-radius-sm) !important;
}

.model-name {
    font-size: 14.5px !important;
    font-weight: 600 !important;
}

/* CHAT AREA */

.scroll-area {
    padding: 0 20px 170px !important;
    overflow-x: hidden !important;
}

.conversation-column {
    width: 100% !important;
    max-width: var(--v2-content-width) !important;
    margin: 0 auto !important;
    padding: 0 !important;
}

.hero-section {
    padding: 84px 0 24px !important;
}

.hero-section h1 {
    margin: 0 0 8px !important;
    font-size: 30px !important;
    line-height: 1.2 !important;
    font-weight: 600 !important;
    letter-spacing: -0.03em !important;
}

.hero-copy {
    margin-bottom: 28px !important;
    font-size: 14px !important;
    line-height: 1.5 !important;
    color: var(--v2-muted) !important;
}

/* STARTER PROMPTS */

.starter-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr)) !important;
    gap: 10px !important;
    max-width: 680px;
    margin: 0 auto;
}

.starter-grid button {
    min-height: 54px !important;
    padding: 12px 14px !important;
    gap: 10px !important;
    border: 1px solid var(--v2-border) !important;
    border-radius: var(--v2-radius-md) !important;
    background: var(--v2-surface) !important;
    font-size: 13.5px !important;
    font-weight: 500 !important;
    box-shadow: none !important;
}

.starter-grid button:hover {
    background: var(--v2-hover) !important;
}

/* CHAT MESSAGES */

.chat-messages {
    gap: 30px !important;
}

.message {
    width: 100% !important;
}

.message.assistant .message-content {
    font-size: 15.5px !important;
    line-height: 1.7 !important;
}

.message.user {
    align-items: flex-end !important;
}

.message.user .message-content {
    width: fit-content !important;
    max-width: 78% !important;
    padding: 10px 14px !important;
    border-radius: 18px !important;
    background: var(--v2-surface-soft) !important;
    font-size: 14.5px !important;
    line-height: 1.5 !important;
}

/* Uploaded image in user message */

.message.user .message-content img {
    display: block;
    width: auto !important;
    height: auto !important;
    max-width: 420px !important;
    max-height: 360px !important;
    margin: 0 !important;
    border-radius: 12px !important;
    object-fit: contain !important;
}

/* COMPOSER */

.composer-dock {
    padding: 10px 20px 12px !important;
    background:
        linear-gradient(
            to top,
            var(--v2-bg) 82%,
            rgba(255, 255, 255, 0)
        ) !important;
}

body.dark-mode .composer-dock {
    background:
        linear-gradient(
            to top,
            var(--v2-bg) 82%,
            rgba(33, 33, 33, 0)
        ) !important;
}

.composer-wrapper {
    width: 100% !important;
    max-width: var(--v2-composer-width) !important;
    margin: 0 auto !important;
}

.live-suggestions {
    gap: 8px !important;
    margin-bottom: 10px !important;
    padding: 0 4px !important;
}

.suggestion-chip {
    min-height: 36px !important;
    padding: 7px 14px !important;
    border: 1px solid var(--v2-border) !important;
    border-radius: var(--v2-radius-pill) !important;
    background: var(--v2-surface) !important;
    font-size: 12.5px !important;
    box-shadow: var(--v2-shadow) !important;
}

.glass-input-container {
    min-height: 60px !important;
    padding: 6px 8px !important;
    border: 1px solid var(--v2-border) !important;
    border-radius: 28px !important;
    background: var(--v2-surface) !important;
    box-shadow: var(--v2-shadow) !important;
}

.composer-input-row {
    min-height: 46px !important;
    align-items: center !important;
}

textarea#chatInput {
    min-height: 42px !important;
    padding: 10px 8px !important;
    font-size: 15px !important;
    line-height: 1.45 !important;
}

.attach-btn,
.mic-btn,
.send-btn {
    width: 38px !important;
    height: 38px !important;
    min-width: 38px !important;
    min-height: 38px !important;
}

.send-btn {
    background: #111111 !important;
    color: #ffffff !important;
}

body.dark-mode .send-btn {
    background: #ffffff !important;
    color: #111111 !important;
}

.composer-note {
    margin-top: 8px !important;
    font-size: 11.5px !important;
    color: var(--v2-muted) !important;
}

/* SETTINGS */

.neo-settings-modal {
    width: min(980px, calc(100vw - 48px)) !important;
    height: min(760px, calc(100vh - 48px)) !important;
    border-radius: 20px !important;
    overflow: hidden !important;
}

.neo-settings-sidebar {
    width: 244px !important;
    padding: 20px 12px !important;
}

.neo-settings-tab {
    min-height: 44px !important;
    padding: 0 12px !important;
    border-radius: var(--v2-radius-md) !important;
}

.neo-settings-content {
    padding: 28px !important;
}

.neo-settings-panel h2 {
    margin-bottom: 24px !important;
    font-size: 24px !important;
    letter-spacing: -0.025em !important;
}

/* PROFILE */

#settingsPanelProfile {
    max-width: 720px !important;
}

#settingsPanelProfile .profile-editor-card {
    display: block !important;
    padding: 0 !important;
    border: 0 !important;
    background: transparent !important;
}

#settingsPanelProfile .profile-editor-main {
    display: flex !important;
    flex-direction: column !important;
    gap: 22px !important;
}

#settingsPanelProfile .profile-upload-row {
    display: flex !important;
    align-items: center !important;
    gap: 18px !important;
    padding-bottom: 24px !important;
    border-bottom: 1px solid var(--v2-border) !important;
}

#settingsPanelProfile .profile-editor-avatar {
    width: 78px !important;
    height: 78px !important;
    flex: 0 0 78px !important;
}

#settingsPanelProfile .profile-upload-actions {
    display: flex !important;
    flex-wrap: wrap !important;
    align-items: center !important;
    gap: 8px !important;
}

#settingsPanelProfile .settings-helper-text {
    width: 100% !important;
    margin-top: 4px !important;
}

#settingsPanelProfile label {
    display: flex !important;
    flex-direction: column !important;
    gap: 8px !important;
    font-size: 13px !important;
    font-weight: 600 !important;
}

#settingsPanelProfile input {
    width: 100% !important;
    min-height: 48px !important;
    padding: 0 14px !important;
    border-radius: var(--v2-radius-md) !important;
}

#settingsPanelProfile .profile-editor-actions {
    display: flex !important;
    justify-content: flex-end !important;
    gap: 10px !important;
    margin-top: 4px !important;
}

/* RESPONSIVE */

@media (max-width: 1024px) {
    :root {
        --v2-content-width: 700px;
        --v2-composer-width: 700px;
    }

    .starter-grid {
        max-width: 640px;
    }
}

@media (max-width: 767px) {
    :root {
        --v2-sidebar-width: min(86vw, 300px);
    }

    .top-bar {
        padding: 0 10px !important;
    }

    .scroll-area {
        padding: 0 14px 150px !important;
    }

    .hero-section {
        padding: 46px 0 20px !important;
    }

    .hero-section h1 {
        font-size: 25px !important;
    }

    .starter-grid {
        grid-template-columns: 1fr !important;
        gap: 8px !important;
    }

    .starter-grid button {
        min-height: 50px !important;
    }

    .message.user .message-content {
        max-width: 88% !important;
    }

    .message.user .message-content img {
        max-width: 100% !important;
        max-height: 320px !important;
    }

    .composer-dock {
        padding:
            8px
            10px
            calc(8px + env(safe-area-inset-bottom)) !important;
    }

    .live-suggestions {
        overflow-x: auto !important;
        flex-wrap: nowrap !important;
    }

    .suggestion-chip {
        white-space: nowrap !important;
    }

    .glass-input-container {
        min-height: 56px !important;
    }

    textarea#chatInput,
    input,
    select {
        font-size: 16px !important;
    }

    .neo-settings-overlay {
        padding: 0 !important;
    }

    .neo-settings-modal {
        width: 100% !important;
        height: 100dvh !important;
        max-height: none !important;
        border-radius: 0 !important;
        grid-template-columns: 1fr !important;
    }

    .neo-settings-sidebar {
        width: 100% !important;
        display: flex !important;
        flex-direction: row !important;
        overflow-x: auto !important;
        padding:
            calc(8px + env(safe-area-inset-top))
            8px
            8px !important;
        border-right: 0 !important;
        border-bottom: 1px solid var(--v2-border) !important;
    }

    .neo-settings-close {
        flex: 0 0 auto !important;
    }

    .neo-settings-tab {
        width: auto !important;
        flex: 0 0 auto !important;
        min-width: max-content !important;
    }

    .neo-settings-content {
        padding: 18px 16px 28px !important;
    }

    #settingsPanelProfile .profile-upload-row {
        align-items: flex-start !important;
    }
}

@media (max-width: 390px) {
    .message.user .message-content {
        max-width: 92% !important;
    }

    #settingsPanelProfile .profile-upload-row {
        flex-direction: column !important;
    }

    #settingsPanelProfile .profile-editor-actions {
        width: 100% !important;
    }

    #settingsPanelProfile .profile-editor-actions button {
        flex: 1 !important;
    }
}

@media (prefers-reduced-motion: reduce) {
    *,
    *::before,
    *::after {
        scroll-behavior: auto !important;
        animation-duration: 0.01ms !important;
        animation-iteration-count: 1 !important;
        transition-duration: 0.01ms !important;
    }
}

/* =========================================================
   NEO UI V2 — CHAT FLOW LOCK
   Single final override. Do not duplicate these selectors.
   ========================================================= */

.conversation-column,
.chat-messages,
.composer-wrapper {
    width: 100% !important;
    max-width: 760px !important;
    margin-inline: auto !important;
    min-width: 0 !important;
}

.scroll-area {
    padding: 0 24px 220px !important;
    scroll-padding-bottom: 220px !important;
    overflow-x: hidden !important;
}

.chat-messages {
    display: flex !important;
    flex-direction: column !important;
    gap: 28px !important;
}

.message {
    width: 100% !important;
    margin: 0 !important;
}

.message.user {
    align-items: flex-end !important;
}

.message.user .message-content {
    width: fit-content !important;
    max-width: 72% !important;
    margin: 0 !important;
    padding: 10px 14px !important;
    border-radius: 18px !important;
    background: var(--v2-surface-soft) !important;
    font-size: 15px !important;
    line-height: 1.5 !important;
}

.message.assistant {
    align-items: flex-start !important;
}

.message.assistant .message-content {
    width: 100% !important;
    max-width: 100% !important;
    margin: 0 !important;
    padding: 0 !important;
    background: transparent !important;
    font-size: 15.5px !important;
    line-height: 1.7 !important;
}

.message-actions,
.message.assistant .message-actions {
    width: auto !important;
    margin: 7px 0 0 !important;
    gap: 4px !important;
}

.message.user .message-actions {
    align-self: flex-end !important;
    justify-content: flex-end !important;
}

.message-content img {
    display: block !important;
    width: auto !important;
    height: auto !important;
    max-width: min(560px, 100%) !important;
    max-height: 400px !important;
    margin: 10px 0 0 !important;
    object-fit: contain !important;
    object-position: left top !important;
    border: 1px solid var(--v2-border) !important;
    border-radius: 14px !important;
    background: var(--v2-surface) !important;
}

.message.user .message-content img {
    max-width: min(440px, 100%) !important;
    max-height: 360px !important;
    margin: 0 !important;
}

.message-content p {
    margin: 0 0 14px !important;
}

.message-content p:last-child {
    margin-bottom: 0 !important;
}

.composer-dock {
    z-index: 40 !important;
    padding: 16px 24px 14px !important;
    background:
        linear-gradient(
            to top,
            var(--v2-bg) 80%,
            transparent
        ) !important;
}

body.dark-mode .composer-dock {
    background:
        linear-gradient(
            to top,
            var(--v2-bg) 80%,
            transparent
        ) !important;
}

.live-suggestions {
    margin-bottom: 10px !important;
    padding-inline: 4px !important;
    gap: 8px !important;
}

.glass-input-container {
    width: 100% !important;
    min-height: 60px !important;
    padding: 6px 8px !important;
    border-radius: 28px !important;
}

.composer-note {
    margin-top: 9px !important;
    font-size: 11.5px !important;
    line-height: 1.4 !important;
}

@media (max-width: 767px) {
    .conversation-column,
    .chat-messages,
    .composer-wrapper {
        max-width: 100% !important;
    }

    .scroll-area {
        padding:
            0
            14px
            190px !important;
        scroll-padding-bottom: 190px !important;
    }

    .chat-messages {
        gap: 24px !important;
    }

    .message.user .message-content {
        max-width: 88% !important;
    }

    .message-content img,
    .message.user .message-content img {
        max-width: 100% !important;
        max-height: 320px !important;
    }

    .composer-dock {
        padding:
            10px
            10px
            calc(10px + env(safe-area-inset-bottom)) !important;
    }
}