/**
 * OpenClaw Chat - Design System & CSS Variables
 */

:root {
    /* Colors - Dark Theme (OLED) */
    --color-primary: #0F172A;
    --color-secondary: #1E293B;
    --color-cta: #22C55E;
    --color-background: #020617;
    --color-text: #F8FAFC;

    --bg-base: var(--color-background);
    --bg-surface: var(--color-primary);
    --bg-surface-hover: var(--color-secondary);
    --bg-surface-active: #334155;

    --text-primary: var(--color-text);
    --text-secondary: #94A3B8;
    --text-muted: #475569;

    --border-color: #1E293B;

    --accent-primary: var(--color-cta);
    --accent-primary-hover: #16A34A;

    --origin-nudge: #10B981;
    --origin-auto: #0EA5E9;

    --danger: #EF4444;
    --warning: #F59E0B;
    --success: var(--color-cta);

    /* Semantic */
    --my-message-indicator: var(--color-cta);

    /* Typography */
    --font-sans: 'Fira Sans', -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --font-mono: 'Fira Code', ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, monospace;

    /* Spacing Tokens */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 16px;
    --space-lg: 24px;
    --space-xl: 32px;

    /* Sizes */
    --sidebar-width: 280px;
    --header-height: 60px;
    --nudge-bar-height: 80px;

    --border-radius: 8px;
    --border-radius-lg: 12px;

    /* Shadow Depths */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 6px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 10px 15px rgba(0, 0, 0, 0.5);
    --shadow-xl: 0 20px 25px rgba(0, 0, 0, 0.6);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg-base);
    color: var(--text-primary);
    line-height: 1.5;
    overflow: hidden;
    /* App is full screen, scrolling handled internally */
    -webkit-font-smoothing: antialiased;
}

/* ── Typography ── */
h1,
h2,
h3 {
    font-weight: 600;
}

a {
    color: var(--accent-primary);
    text-decoration: none;
}

a:hover {
    text-decoration: underline;
}

/* ── Layout ── */
#app {
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.status-bar {
    height: var(--header-height);
    background-color: var(--bg-surface);
    border-bottom: 1px solid var(--border-color);
    display: flex;
    align-items: center;
    padding: 0 20px;
    justify-content: space-between;
    z-index: 10;
}

.brand {
    font-weight: 700;
    font-size: 1.25rem;
    letter-spacing: -0.5px;
    font-family: var(--font-mono);
    text-shadow: 0 0 10px rgba(255, 255, 255, 0.2);
}

.connection-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 0.85rem;
    color: var(--text-secondary);
}

.indicator {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-muted);
}

.indicator.connected {
    background-color: var(--success);
    box-shadow: 0 0 10px var(--success);
}

.indicator.connecting {
    background-color: var(--warning);
    animation: pulse 1.5s infinite;
}

.indicator.error {
    background-color: var(--danger);
}

@keyframes pulse {
    0% {
        opacity: 0.5;
    }

    50% {
        opacity: 1;
    }

    100% {
        opacity: 0.5;
    }
}

.layout-main {
    display: flex;
    flex: 1;
    overflow: hidden;
}

/* ── Sidebar ── */
.sidebar {
    width: var(--sidebar-width);
    background-color: var(--bg-surface);
    border-right: 1px solid var(--border-color);
    display: flex;
    flex-direction: column;
}

.sidebar-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
}

.sidebar-header h2 {
    font-size: 0.9rem;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.room-list {
    flex: 1;
    overflow-y: auto;
    padding: 12px;
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.room-item {
    padding: 12px 16px;
    border-radius: var(--border-radius);
    cursor: pointer;
    transition: all 0.2s ease;
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.room-item:hover {
    background-color: var(--bg-surface-hover);
}

.room-item.active {
    background-color: var(--bg-surface-active);
    border-left: 3px solid var(--accent-primary);
    padding-left: 13px;
}

.room-name {
    font-weight: 500;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.unread-badge {
    background-color: var(--accent-primary);
    color: white;
    font-size: 0.75rem;
    padding: 2px 6px;
    border-radius: 12px;
    font-weight: 600;
}

.unread-badge.mention {
    background-color: var(--danger);
}

.unread-badge.hidden {
    display: none;
}

/* ── Chat Area ── */
.chat-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    background-color: var(--bg-base);
    position: relative;
}

.active-room-header {
    height: 50px;
    padding: 0 24px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-color);
    background-color: rgba(18, 18, 18, 0.95);
    backdrop-filter: blur(10px);
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    z-index: 5;
}

.active-room-header h2 {
    font-size: 1.1rem;
}

.message-stream {
    flex: 1;
    overflow-y: auto;
    padding: 70px 24px 24px 24px;
    /* top padding accounts for fixed header */
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.empty-state {
    margin: auto;
    color: var(--text-muted);
    font-style: italic;
}

/* ── Messages ── */
.msg-card {
    display: flex;
    flex-direction: column;
    max-width: 85%;
    position: relative;
    padding-left: 12px;
    /* space for origin line */
}

/* Origin line indicator (Architect §3.4) */
.msg-card::before {
    content: '';
    position: absolute;
    left: 0;
    top: 4px;
    bottom: 4px;
    width: 3px;
    border-radius: 2px;
    background-color: var(--border-color);
    /* default */
}

.msg-card[data-origin="human_nudge"]::before {
    background-color: var(--origin-nudge);
}

.msg-card[data-origin="auto_reply"]::before {
    background-color: var(--origin-auto);
}

.msg-card.is-me::before {
    background-color: var(--my-message-indicator);
}

/* Vertical blue line for own msgs */

.msg-header {
    display: flex;
    align-items: baseline;
    gap: 8px;
    margin-bottom: 4px;
}

.msg-sender {
    font-weight: 600;
    font-size: 0.9rem;
    /* Color will be set inline via color.js */
}

.msg-time {
    font-size: 0.75rem;
    color: var(--text-muted);
    font-family: var(--font-mono);
}

.msg-bubble {
    background-color: var(--bg-surface);
    padding: 12px 16px;
    border-radius: 0 12px 12px 12px;
    color: var(--text-primary);
    white-space: pre-wrap;
    word-break: break-word;
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-sm);
    transition: box-shadow 0.2s ease;
}

.msg-bubble:hover {
    box-shadow: var(--shadow-md);
}

.msg-card.is-system .msg-bubble {
    background: transparent;
    border: none;
    padding: 0;
    color: var(--text-muted);
    font-size: 0.85rem;
    font-style: italic;
}

/* Reply To Indicator */
.reply-to-preview {
    font-size: 0.8rem;
    color: var(--text-secondary);
    background-color: rgba(255, 255, 255, 0.05);
    padding: 4px 8px;
    border-radius: 4px;
    margin-bottom: 4px;
    border-left: 2px solid var(--text-muted);
    cursor: pointer;
    display: inline-block;
    max-width: 100%;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

.reply-to-preview:hover {
    background-color: rgba(255, 255, 255, 0.1);
}

/* Mentions styling */
.mention {
    color: var(--accent-primary);
    font-weight: 500;
    background-color: rgba(92, 107, 192, 0.15);
    padding: 0 4px;
    border-radius: 4px;
}

/* ── Nudge Bar ── */
.nudge-bar {
    padding: 16px 24px;
    background-color: var(--bg-surface);
    border-top: 1px solid var(--border-color);
}

.nudge-input-wrapper {
    display: flex;
    gap: 12px;
    align-items: flex-end;
}

textarea {
    flex: 1;
    background-color: var(--bg-base);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    border-radius: var(--border-radius);
    padding: 12px;
    font-family: var(--font-sans);
    resize: none;
    min-height: 44px;
    max-height: 150px;
    transition: border-color 0.2s;
    outline: none;
}

textarea:focus {
    border-color: var(--accent-primary);
}

/* ── Buttons ── */
.btn {
    background-color: var(--bg-surface-hover);
    color: var(--text-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius);
    padding: 8px 16px;
    font-family: var(--font-sans);
    font-weight: 500;
    cursor: pointer;
    transition: all 0.2s ease;
}

.btn:hover {
    background-color: var(--bg-surface-active);
    transform: translateY(-1px);
    box-shadow: var(--shadow-sm);
}

.btn-sm {
    padding: 4px 12px;
    font-size: 0.85rem;
}

.btn-primary {
    background-color: var(--accent-primary);
    border-color: var(--accent-primary);
    color: white;
}

.btn-primary:hover {
    background-color: var(--accent-primary-hover);
    border-color: var(--accent-primary-hover);
    transform: translateY(-2px);
    box-shadow: var(--shadow-md);
}

.btn-icon {
    padding: 4px 8px;
}

/* ── Utilities ── */
.hidden {
    display: none !important;
}

/* ── Overlays (Thread Panel / Modals) ── */
.overlay-backdrop {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background-color: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(2px);
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
}

.modal {
    background-color: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    width: 400px;
    max-width: 90vw;
    box-shadow: var(--shadow-xl);
    overflow: hidden;
}

.modal-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-body {
    padding: 20px;
}

.modal-footer {
    padding: 16px 20px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 12px;
}

/* Forms */
.form-group {
    margin-bottom: 16px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

.form-control {
    width: 100%;
    background-color: var(--bg-base);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px 12px;
    border-radius: var(--border-radius);
    outline: none;
}

.form-control:focus {
    border-color: var(--accent-primary);
    box-shadow: 0 0 0 3px rgba(34, 197, 94, 0.2);
}

/* ── Collapse Group (9.5) ── */
.collapse-card {
    background: linear-gradient(135deg, rgba(0, 188, 212, 0.08), rgba(92, 107, 192, 0.08));
    border: 1px solid rgba(0, 188, 212, 0.2);
    border-radius: var(--border-radius);
    padding: 12px 16px;
    margin: 4px 0;
}

.collapse-header {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-bottom: 8px;
}

.collapse-icon {
    font-size: 1.1rem;
}

.collapse-count {
    font-size: 0.85rem;
    color: var(--text-secondary);
    font-weight: 500;
}

.collapse-chip {
    font-size: 0.75rem;
    border: 1px solid;
    padding: 1px 6px;
    border-radius: 10px;
    font-weight: 500;
}

.collapse-preview {
    font-size: 0.85rem;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    margin-bottom: 8px;
}

.collapse-expand-btn {
    background: none;
    border: 1px solid var(--border-color);
    color: var(--text-secondary);
    padding: 4px 12px;
    border-radius: 4px;
    cursor: pointer;
    font-size: 0.8rem;
    transition: all 0.2s;
}

.collapse-expand-btn:hover {
    border-color: var(--accent-primary);
    color: var(--text-primary);
}

.collapse-expanded {
    margin-top: 12px;
    padding-top: 12px;
    border-top: 1px solid var(--border-color);
}

/* ── Thread Panel (9.6) ── */
.thread-panel {
    position: fixed;
    top: 0;
    right: 0;
    bottom: 0;
    width: 380px;
    max-width: 90vw;
    background-color: var(--bg-surface);
    border-left: 1px solid var(--border-color);
    z-index: 50;
    display: flex;
    flex-direction: column;
    transform: translateX(100%);
    transition: transform 0.3s ease;
    box-shadow: -4px 0 20px rgba(0, 0, 0, 0.3);
}

.thread-panel.visible {
    transform: translateX(0);
}

.thread-panel.hidden {
    transform: translateX(100%);
}

.thread-panel-header {
    padding: 16px 20px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.thread-title {
    font-weight: 600;
    font-size: 1rem;
}

.thread-close-btn {
    background: none;
    border: none;
    color: var(--text-secondary);
    font-size: 1.2rem;
    cursor: pointer;
    padding: 4px;
}

.thread-close-btn:hover {
    color: var(--text-primary);
}

.thread-messages {
    flex: 1;
    overflow-y: auto;
    padding: 16px;
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.thread-msg {
    padding: 8px 12px;
    border-radius: var(--border-radius);
}

.thread-msg.thread-highlight {
    background-color: rgba(92, 107, 192, 0.15);
    border-left: 3px solid var(--accent-primary);
}

.thread-msg-header {
    display: flex;
    gap: 8px;
    align-items: baseline;
    margin-bottom: 4px;
}

.thread-sender {
    font-weight: 600;
    font-size: 0.85rem;
}

.thread-time {
    font-size: 0.7rem;
    color: var(--text-muted);
}

.thread-msg-content {
    font-size: 0.9rem;
    color: var(--text-primary);
    white-space: pre-wrap;
}

/* ── Room Dialog (9.7) ── */
.dialog-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.6);
    backdrop-filter: blur(3px);
    z-index: 100;
    display: flex;
    justify-content: center;
    align-items: center;
    opacity: 0;
    transition: opacity 0.2s;
}

.dialog-overlay.visible {
    opacity: 1;
}

.dialog-overlay.hidden {
    display: none;
}

.dialog-box {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    width: 420px;
    max-width: 90vw;
    box-shadow: var(--shadow-xl);
}

.dialog-box h3 {
    margin-bottom: 20px;
    font-size: 1.2rem;
}

.dialog-field {
    margin-bottom: 16px;
}

.dialog-field label {
    display: block;
    margin-bottom: 6px;
    color: var(--text-secondary);
    font-size: 0.85rem;
}

.dialog-field input {
    width: 100%;
    background: var(--bg-base);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 10px 12px;
    border-radius: var(--border-radius);
    outline: none;
    font-family: var(--font-sans);
}

.dialog-field input:focus {
    border-color: var(--accent-primary);
}

.dialog-field input[readonly] {
    opacity: 0.7;
}

.dialog-actions {
    display: flex;
    justify-content: flex-end;
    gap: 12px;
    margin-top: 20px;
}

.dialog-status {
    margin-top: 12px;
    font-size: 0.85rem;
    color: var(--warning);
}

.btn-secondary {
    background: var(--bg-surface-hover);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 16px;
    border-radius: var(--border-radius);
    cursor: pointer;
    font-family: var(--font-sans);
}

.btn-secondary:hover {
    background: var(--bg-surface-active);
}

/* ── Invite Panel (9.8) ── */
.invite-panel {
    position: fixed;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%) scale(0.95);
    z-index: 100;
    opacity: 0;
    transition: all 0.2s;
}

.invite-panel.visible {
    opacity: 1;
    transform: translate(-50%, -50%) scale(1);
}

.invite-panel.hidden {
    display: none;
}

.invite-panel-inner {
    background: var(--bg-surface);
    border: 1px solid var(--border-color);
    border-radius: var(--border-radius-lg);
    padding: 24px;
    width: 460px;
    max-width: 90vw;
    box-shadow: var(--shadow-xl);
}

.invite-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.invite-header h4 {
    font-size: 1.1rem;
}

.invite-close {
    background: none;
    border: none;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 1.2rem;
}

.invite-link-row {
    display: flex;
    gap: 8px;
    margin-bottom: 8px;
}

.invite-link-input {
    flex: 1;
    background: var(--bg-base);
    border: 1px solid var(--border-color);
    color: var(--text-primary);
    padding: 8px 12px;
    border-radius: var(--border-radius);
    font-family: var(--font-mono);
    font-size: 0.8rem;
}

.btn-copy {
    padding: 8px 12px;
    cursor: pointer;
    background: var(--accent-primary);
    border: none;
    color: white;
    border-radius: var(--border-radius);
    font-size: 0.85rem;
}

.invite-expires {
    font-size: 0.8rem;
    color: var(--text-muted);
    margin-bottom: 12px;
}

.invite-section {
    margin-bottom: 12px;
}

.invite-label {
    display: block;
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-bottom: 6px;
    font-weight: 500;
}

.invite-api-cmd {
    font-family: 'Fira Code', monospace;
    font-size: 0.75rem;
    resize: none;
    line-height: 1.4;
}

.invite-copy-full {
    width: 100%;
    margin-top: 6px;
    font-size: 0.8rem;
}

.invite-actions-row {
    display: flex;
    gap: 8px;
    margin-top: 8px;
}

.invite-actions-row .invite-refresh {
    flex: 1;
}

.invite-actions-row .btn-primary {
    flex: 1;
}

.invite-refresh {
    width: 100%;
}

.invite-status {
    margin-top: 8px;
    font-size: 0.85rem;
    color: var(--success);
}

.invite-error {
    color: var(--danger);
    font-size: 0.9rem;
}

.invite-loading {
    color: var(--text-secondary);
    font-style: italic;
}

/* ── Error states ── */
textarea.error {
    border-color: var(--danger);
}

textarea.error::placeholder {
    color: var(--danger);
}