/* FeedStatusRow & Thinking Animation */
@keyframes slideIn {
    from { opacity: 0; transform: translateY(8px); }
    to   { opacity: 1; transform: translateY(0); }
}

@keyframes pulse-blurple {
    0%, 100% { opacity: 1; }
    50% { opacity: 0.5; }
}

.FeedStatusRow-module__root {
    display: flex;
    align-items: flex-start;
    gap: var(--space-12);
    width: 100%;
    padding: var(--space-12) 0;
    animation: slideIn 0.2s ease-out forwards;
}

.FeedStatusRow-module__statusTextContainer {
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    flex: 1;
}

.GeneralSubagentThinking-module__inner {
    display: flex;
    align-items: center;
    gap: var(--space-8);
    color: var(--text-2);
    font-size: 13px;
}

.GeneralSubagentThinking-module__subSurface {
    width: 24px;
    height: 24px;
    border-radius: var(--border-radius-6);
    background: var(--accent);
    display: flex;
    align-items: center;
    justify-content: center;
    animation: pulse-blurple 2s infinite ease-in-out;
    flex-shrink: 0;
}

.GeneralSubagentThinking-module__isExpanded {
    margin-top: var(--space-8);
    transition: opacity 0.2s ease;
}

.thinking-elapsed {
    font-size: 11px;
    color: var(--text-3);
    margin-right: auto;
}

/* ToolUseGroup-module */
.tool-group {
    border: 1px solid var(--border-2);
    border-radius: var(--border-radius-8);
    background: var(--card);
    margin-bottom: var(--space-8);
    overflow: hidden;
    box-shadow: 0 2px 1px #02020305;
}

.tool-group-header {
    height: 34px;
    padding: 0 var(--space-8);
    display: flex;
    align-items: center;
    justify-content: space-between;
    cursor: pointer;
    user-select: none;
    background: var(--bg-2);
    color: var(--text-2);
    font-size: 12px;
    font-weight: var(--font-weight-medium);
    transition: background var(--transition-snappy);
}

.tool-group-header:hover {
    background: var(--border-2);
}

.tool-group-header-left {
    display: flex;
    align-items: center;
    gap: var(--space-6);
}

.tool-group-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 16px;
    height: 16px;
    color: var(--text-3);
}

.tool-group-content {
    display: none;
    border-top: 1px solid var(--border-2);
    padding: var(--space-4);
    background: var(--bg);
}

.tool-group.expanded .tool-group-content {
    display: block;
}

.tool-group.expanded .tool-group-chevron {
    transform: rotate(90deg);
}

.tool-group-chevron {
    color: var(--text-3);
    transition: transform var(--transition-snappy);
    font-size: 10px;
}

/* Adjust nested tool cards inside group */
.tool-group .tool-card {
    border: 1px solid var(--border-2);
    margin-bottom: var(--space-2);
    box-shadow: none;
}
.tool-group .tool-card:last-child {
    margin-bottom: 0;
}

/* ===== Agent Settings Dropdown ===== */
.settings-container {
    position: relative;
}

.agent-settings-btn {
    height: 24px;
    width: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--text-3); /* foreground-dimmer */
    background: transparent;
    border: none;
    cursor: pointer;
    border-radius: var(--border-radius-4);
    transition: color var(--transition-snappy);
}

.agent-settings-btn:hover {
    color: var(--text); /* foreground-default */
}

.settings-dropdown {
    position: absolute;
    bottom: calc(100% + 8px);
    right: 0;
    width: 280px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-12);
    box-shadow: var(--shadow-2);
    z-index: 100;
    display: none;
    flex-direction: column;
    overflow: hidden;
    animation: slideUpIn 0.2s ease-out;
}

@keyframes slideUpIn {
    from { opacity: 0; transform: translateY(8px); }
    to { opacity: 1; transform: translateY(0); }
}

.settings-dropdown.show {
    display: flex;
}

.settings-header {
    padding: var(--space-12);
    border-bottom: 1px solid var(--border-2);
    font-size: 13px;
    font-weight: var(--font-weight-bold);
}

.mode-cards {
    padding: var(--space-8);
    display: flex;
    flex-direction: column;
    gap: var(--space-8);
}

.mode-card {
    display: flex;
    align-items: center;
    gap: var(--space-12);
    padding: var(--space-12);
    border-radius: var(--border-radius-8);
    cursor: pointer;
    transition: background var(--transition-snappy);
    border: 1px solid transparent;
}

.mode-card:hover {
    background: var(--bg-2);
}

.mode-card.selected {
    background: var(--accent-light);
    border-color: var(--accent);
}

.radio-button {
    width: 20px;
    height: 20px;
    border: 1px solid var(--border); /* interactive-border */
    background: var(--bg); /* interactive-background */
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
}

.mode-card.selected .radio-button {
    border-color: var(--accent);
}

.radio-button::after {
    content: "";
    width: 12px;
    height: 12px;
    background: var(--accent);
    border-radius: 50%;
    opacity: 0;
    transition: opacity 0.15s ease-in-out;
}

.mode-card.selected .radio-button::after {
    opacity: 1;
}

.mode-info {
    flex: 1;
}

.mode-name {
    display: flex;
    align-items: center;
    gap: var(--space-6);
    font-size: 13px;
    font-weight: var(--font-weight-medium);
}

.mode-desc {
    font-size: 11px;
    color: var(--text-3);
    margin-top: 2px;
}

.fast-badge {
    font-size: 10px;
    padding: 1px 4px;
    border-radius: var(--border-radius-4);
    background: transparent;
    color: var(--warning);
    border: 1px solid var(--warning);
}

.mode-card.selected .fast-badge {
    background: #fef3c7; /* accent-yellow-dimmest */
}

/* ===== Reset & Base ===== */
*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
    /* ... existing variables ... */

    /* CSS Aliases - Replit Style */
    --background-default: var(--bg);
    --foreground-default: var(--text);
    --accent-primary-default: var(--accent);
    --outline-default: var(--border);
    --foreground-dimmer: var(--text-2);
    --foreground-dimmest: var(--text-3);
    --interactive-background: var(--bg-2);

    /* ===== مستخرج مباشرة من Replit CDN ===== */
    --font-family-default:   "IBM Plex Sans", sans-serif;
    --font-family-code:      "ReplitHack", ui-monospace, monospace;
    --font-size-small:       12px;
    --font-size-default:     14px;
    --font-weight-medium:    500;
    --font-weight-bold:      600;
    --line-height-default:   1.6;

    --border-radius-4:       4px;
    --border-radius-6:       6px;
    --border-radius-8:       8px;
    --border-radius-12:      12px;
    --border-radius-16:      16px;
    --border-radius-round:   1028px;

    --space-2:  2px;   --space-4:  4px;
    --space-6:  6px;   --space-8:  8px;
    --space-12: 12px;  --space-16: 16px;
    --space-24: 24px;  --space-32: 32px;

    --shadow-0: 0px 4px 8px 0px #02020312;
    --shadow-1: 0px 4px 8px 0px #02020329;
    --shadow-2: 0px 8px 16px 0px #02020352;

    --transition-snappy: .12s ease-out;
    --transition-chill:  .3s ease-in-out;

    /* ===== ألوان Replit الفعلية ===== */
    --brand-text:           #1b252b;
    --brand-secondary-text: #5c6062;
    --brand-background:     #f3f3f3;
    --brand-background-dk:  #e5e5e5;
    --brand-border:         #cfc9c3;

    /* ===== ألوان الواجهة الدلالية ===== */
    --bg:           #f0ede8;    /* خلفية دافئة — مطابق Replit Agent */
    --bg-2:         #e8e4de;
    --card:         #faf8f5;
    --border:       #cfc9c3;
    --border-2:     #e0dbd5;
    --text:         #1b252b;
    --text-2:       #5c6062;
    --text-3:       #8a8f91;

    /* Replit Agent accent — البنفسجي الفعلي */
    --accent:        #6C47FF;
    --accent-hover:  #5936e8;
    --accent-light:  #ede9ff;
    --accent-dimmer: #4a2fd1;

    --success:        #16a34a;
    --success-light:  #dcfce7;
    --error:          #dc2626;
    --error-light:    #fee2e2;
    --warning:        #ea580c;
    --warning-light:  #fff7ed;

    --tool-read:  #3b82f6;
    --tool-write: #16a34a;
    --tool-bash:  #d97706;
    --tool-git:   #8b5cf6;

    --sidebar-w:  240px;
    --feed-max:   600px;   /* مطابق Replit Agent feed — مسحوب من CSS مباشرة */
}

html, body {
    height: 100%;
    font-family: var(--font-family-default);
    background: var(--bg);
    color: var(--text);
    font-size: var(--font-size-default);
    line-height: var(--line-height-default);
    -webkit-font-smoothing: antialiased;
    overflow: hidden;
}

/* ===== Auth Screen ===== */
#auth-screen {
    position: fixed; inset: 0;
    display: flex; align-items: center; justify-content: center;
    background: #0f0f14;
    z-index: 1000; overflow: hidden;
}

.auth-bg-pattern {
    position: absolute; inset: 0; pointer-events: none;
    background:
        radial-gradient(ellipse 80% 60% at 20% 10%, rgba(108,71,255,.18) 0%, transparent 60%),
        radial-gradient(ellipse 60% 50% at 80% 80%, rgba(56,189,248,.10) 0%, transparent 55%);
}

.auth-card {
    position: relative;
    background: rgba(255,255,255,.04);
    border: 1px solid rgba(255,255,255,.1);
    border-radius: var(--border-radius-16);
    padding: 36px;
    width: 100%; max-width: 380px;
    box-shadow: 0 25px 60px rgba(0,0,0,.5);
    backdrop-filter: blur(20px);
    animation: authIn .3s ease;
}
@keyframes authIn {
    from { opacity: 0; transform: translateY(12px) scale(.97); }
    to   { opacity: 1; transform: none; }
}

.auth-logo {
    display: flex; align-items: center;
    gap: 12px; margin-bottom: 28px;
}
.auth-logo-icon {
    width: 48px; height: 48px; border-radius: 12px;
    background: linear-gradient(135deg, #6C47FF 0%, #9F73FF 100%);
    display: flex; align-items: center; justify-content: center;
    box-shadow: 0 8px 24px rgba(108,71,255,.4);
    flex-shrink: 0;
}
.auth-logo-name { font-size: 20px; font-weight: 800; color: #fff; letter-spacing: -.3px; }
.auth-logo-sub  { font-size: 11px; font-weight: 500; color: rgba(255,255,255,.4); letter-spacing: .05em; text-transform: uppercase; }

.auth-heading { margin-bottom: 24px; }
.auth-heading h2 { font-size: 20px; font-weight: 700; color: #fff; margin-bottom: 4px; }
.auth-heading p  { font-size: 13px; color: rgba(255,255,255,.45); }

.auth-field { margin-bottom: 16px; }
.auth-field label {
    display: block; font-size: 12px; font-weight: 500;
    color: rgba(255,255,255,.55); margin-bottom: 7px;
}
.auth-input-wrap { position: relative; display: flex; align-items: center; }
.auth-input-icon {
    position: absolute; right: 12px;
    color: rgba(255,255,255,.3); pointer-events: none;
    display: flex; align-items: center;
}
.auth-input-wrap input {
    width: 100%; padding: 11px 40px 11px 40px;
    background: rgba(255,255,255,.06);
    border: 1.5px solid rgba(255,255,255,.1);
    border-radius: var(--border-radius-8);
    font-size: 13px; font-family: inherit;
    color: #fff; direction: ltr; text-align: left;
    transition: border-color var(--transition-snappy);
}
.auth-input-wrap input::placeholder { color: rgba(255,255,255,.2); }
.auth-input-wrap input:focus {
    outline: none;
    border-color: rgba(108,71,255,.7);
    background: rgba(255,255,255,.09);
}
.auth-toggle-pw {
    position: absolute; left: 10px;
    background: none; border: none; cursor: pointer;
    color: rgba(255,255,255,.3); padding: 4px;
    display: flex; align-items: center;
    transition: color var(--transition-snappy);
}
.auth-toggle-pw:hover { color: rgba(255,255,255,.7); }

.auth-error {
    display: flex; align-items: center; gap: 8px;
    background: rgba(220,38,38,.15); border: 1px solid rgba(220,38,38,.3);
    border-radius: var(--border-radius-6); padding: 9px 11px;
    color: #fca5a5; font-size: 12px;
    margin-bottom: 14px; animation: shakeX .3s ease;
}
@keyframes shakeX {
    0%,100%{transform:none}
    20%{transform:translateX(-5px)}
    40%{transform:translateX(5px)}
    60%{transform:translateX(-3px)}
    80%{transform:translateX(3px)}
}
.auth-error svg { flex-shrink: 0; }

.auth-submit-btn {
    width: 100%; padding: 12px;
    background: linear-gradient(135deg, #6C47FF 0%, #8b6dff 100%);
    color: #fff; border: none; border-radius: var(--border-radius-8);
    font-family: inherit; font-size: 14px; font-weight: var(--font-weight-bold);
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    gap: 8px; transition: all var(--transition-snappy); margin-top: 4px;
    box-shadow: 0 4px 16px rgba(108,71,255,.4);
}
.auth-submit-btn:hover:not(:disabled) {
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(108,71,255,.5);
    background: linear-gradient(135deg, #7a58ff 0%, #9d82ff 100%);
}
.auth-submit-btn:active:not(:disabled) { transform: translateY(0); }
.auth-submit-btn:disabled { opacity: .6; cursor: default; }

@keyframes spin { to { transform: rotate(360deg); } }
.auth-spin { animation: spin .7s linear infinite; }

.auth-footer {
    text-align: center; margin-top: 20px;
    font-size: 11px; color: rgba(255,255,255,.2);
}

/* ===== App Layout ===== */
#app {
    display: flex; height: 100vh; overflow: hidden;
    background: var(--bg);
}

/* ===== Sidebar ===== */
.sidebar {
    width: var(--sidebar-w);
    background: var(--card);
    border-left: 1px solid var(--border);
    display: flex; flex-direction: column;
    flex-shrink: 0; overflow: hidden;
}

.sidebar-top {
    display: flex; align-items: center;
    justify-content: space-between;
    padding: var(--space-12) var(--space-12);
    height: 52px;
    border-bottom: 1px solid var(--border-2);
}
.sidebar-logo {
    display: flex; align-items: center;
    gap: var(--space-8); font-size: 15px; font-weight: var(--font-weight-bold);
}

.new-chat-btn {
    width: 30px; height: 30px;
    background: var(--bg); border: 1px solid var(--border);
    border-radius: var(--border-radius-6);
    cursor: pointer; display: flex; align-items: center; justify-content: center;
    color: var(--text-2); transition: all var(--transition-snappy);
}
.new-chat-btn:hover { background: var(--accent-light); color: var(--accent); border-color: var(--accent); }

.sidebar-section { padding: var(--space-8) var(--space-12); border-bottom: 1px solid var(--border-2); }

.sidebar-label {
    display: block; font-size: 11px; font-weight: var(--font-weight-bold);
    text-transform: uppercase; letter-spacing: .05em;
    color: var(--text-3); margin-bottom: var(--space-6);
}

.model-select-wrap select {
    width: 100%; padding: 7px 9px;
    border: 1px solid var(--border); border-radius: var(--border-radius-6);
    background: var(--bg); font-family: inherit; font-size: 12px;
    color: var(--text); cursor: pointer; transition: border-color var(--transition-snappy);
}
.model-select-wrap select:focus { outline: none; border-color: var(--accent); }

.project-dir-input {
    width: 100%; padding: 7px 9px;
    border: 1px solid var(--border); border-radius: var(--border-radius-6);
    background: var(--bg); font-size: 11px; font-family: var(--font-family-code);
    color: var(--text); direction: ltr; text-align: left;
    transition: border-color var(--transition-snappy);
}
.project-dir-input:focus { outline: none; border-color: var(--accent); }

.chats-section { flex: 1; overflow-y: auto; }
.history-list { display: flex; flex-direction: column; gap: 1px; padding: var(--space-4); }

.history-item {
    padding: 7px 9px; border-radius: var(--border-radius-6);
    cursor: pointer; font-size: 12px; color: var(--text-2);
    transition: background var(--transition-snappy);
    display: flex; align-items: center; gap: var(--space-4);
}
.history-item:hover { background: var(--bg-2); }
.history-item.active { background: var(--accent-light); color: var(--accent); }

.history-item-title { flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap; }

.history-delete-btn {
    width: 18px; height: 18px; border-radius: var(--border-radius-4); border: none;
    background: none; cursor: pointer; color: transparent;
    font-size: 12px; display: flex; align-items: center; justify-content: center;
    transition: all var(--transition-snappy); flex-shrink: 0;
}
.history-item:hover .history-delete-btn { color: var(--text-3); }
.history-delete-btn:hover { background: var(--error-light) !important; color: var(--error) !important; }

.history-empty { font-size: 12px; color: var(--text-3); text-align: center; padding: var(--space-16) 0; }

.sidebar-footer { padding: var(--space-12); border-top: 1px solid var(--border-2); }

.keys-status {
    display: flex; align-items: center; gap: var(--space-6);
    font-size: 12px; color: var(--text-3); margin-bottom: var(--space-8);
}
.status-dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--text-3); flex-shrink: 0; transition: background var(--transition-chill);
}
.status-dot.ok    { background: var(--success); }
.status-dot.error { background: var(--error); }

.sidebar-actions { display: flex; gap: var(--space-6); }

.icon-btn {
    flex: 1; padding: 6px 9px;
    border: 1px solid var(--border); border-radius: var(--border-radius-6);
    background: var(--bg); cursor: pointer;
    font-size: 12px; font-family: inherit; color: var(--text-2);
    display: flex; align-items: center; justify-content: center;
    gap: 5px; transition: all var(--transition-snappy);
}
.icon-btn:hover { background: var(--bg-2); }
.icon-btn.danger:hover { background: var(--error-light); color: var(--error); border-color: var(--error); }

/* ===== Sidebar Toggle Mobile ===== */
.sidebar-toggle {
    display: none; position: fixed; top: 12px; right: 12px;
    z-index: 200; width: 36px; height: 36px;
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--border-radius-6); cursor: pointer;
    align-items: center; justify-content: center; box-shadow: var(--shadow-0);
}

/* ===== Main Area ===== */
.main-area {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-width: 0;
    height: 100vh;
}

/* ===== Chat Header — مطابق Replit Agent Mobile ===== */
.chat-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 0 var(--space-8); height: 52px;
    flex-shrink: 0;
    border-bottom: 1px solid var(--border);
    background: var(--bg);
    z-index: 10;
    position: relative;
}
.chat-header-left  { display: flex; align-items: center; gap: 2px; }
.chat-header-right { display: flex; align-items: center; gap: 2px; }
.chat-header-title {
    position: absolute; left: 50%; transform: translateX(-50%);
    font-size: 15px; font-weight: var(--font-weight-bold); color: var(--text);
    pointer-events: none;
}
/* زر أيقونة الرأس — مطابق Replit */
.header-icon-btn {
    width: 36px; height: 36px;
    display: flex; align-items: center; justify-content: center;
    background: none; border: none; cursor: pointer;
    color: var(--text-2); border-radius: var(--border-radius-8);
    transition: background var(--transition-snappy), color var(--transition-snappy);
}
.header-icon-btn:hover { background: var(--bg-2); color: var(--text); }

/* ===== Welcome Screen ===== */
.welcome-screen {
    display: flex; flex-direction: column;
    align-items: center; text-align: center;
    padding: 48px 20px 32px;
    max-width: var(--feed-max); margin: 0 auto; width: 100%;
}
.welcome-icon {
    width: 64px; height: 64px;
    background: var(--bg-2); border: 1px solid var(--border);
    border-radius: 16px;
    display: flex; align-items: center; justify-content: center;
    color: var(--text-3); margin-bottom: 16px;
}
.welcome-screen h1 { font-size: 20px; font-weight: 700; margin-bottom: 8px; }
.welcome-screen p  { color: var(--text-2); font-size: 13px; margin-bottom: 24px; line-height: 1.7; }

.quick-actions { display: flex; flex-wrap: wrap; gap: var(--space-6); justify-content: center; }
.quick-btn {
    padding: 7px 13px;
    background: var(--card); border: 1px solid var(--border);
    border-radius: var(--border-radius-round); cursor: pointer;
    font-family: inherit; font-size: 12px;
    color: var(--text-2); transition: all var(--transition-snappy);
}
.quick-btn:hover { background: var(--accent-light); color: var(--accent); border-color: var(--accent); }

/* ===== Messages — يتمرر هو فقط — مطابق Replit Feed ===== */
.messages-container {
    flex: 1;
    overflow-y: auto;
    overflow-x: hidden;
    display: flex;
    flex-direction: column;
    align-items: center;      /* توسيط المحتوى مثل Replit */
    background: var(--bg);
}

/* Feed wrapper — نفس Replit: width 600px max */
.feed-inner {
    width: 100%;
    max-width: var(--feed-max);
    padding: var(--space-8) var(--space-16);
    display: flex;
    flex-direction: column;
}

.message {
    display: flex; gap: var(--space-12);
    width: 100%;
    padding: var(--space-12) 0;
}
.message.user      { justify-content: flex-end; align-items: flex-start; }
.message.assistant { align-items: flex-start; }

/* Avatar — مطابق Replit Agent ===== */
.msg-avatar {
    width: 24px; height: 24px; border-radius: var(--border-radius-6);
    display: flex; align-items: center; justify-content: center;
    font-size: 11px; font-weight: 700; flex-shrink: 0; margin-top: 2px;
}
.message.user .msg-avatar {
    background: var(--bg-2); color: var(--text-2);
    border: 1px solid var(--border); border-radius: 50%;
    order: 1;
}
.message.assistant .msg-avatar {
    background: linear-gradient(135deg, #6C47FF 0%, #9F73FF 100%);
    color: white; border-radius: var(--border-radius-6);
}

.msg-content { display: flex; flex-direction: column; gap: var(--space-8); min-width: 0; max-width: 100%; }
.message.user      .msg-content { align-items: flex-end; }
.message.assistant .msg-content { flex: 1; }

/* فقاعة المستخدم — مسحوبة من UserMessage-module Replit */
/* userMessageMain: max-width 400px */
.message.user .msg-bubble {
    background: var(--accent); color: white;
    padding: 9px 13px;
    border-radius: var(--border-radius-8);    /* border-radius-container من Replit */
    font-size: 13.5px; line-height: 1.65; word-break: break-word;
    max-width: 400px;   /* مسحوب من UserMessage-module: max-width 400px */
}

/* رسالة المساعد — نص مباشر بدون فقاعة مثل Replit ===== */
.message.assistant .msg-bubble {
    background: transparent; border: none; padding: 2px 0;
    font-size: 14px; line-height: 1.75; word-break: break-word;
    color: var(--text);
}

.msg-bubble p { margin-bottom: 9px; }
.msg-bubble p:last-child { margin-bottom: 0; }
.msg-bubble code {
    background: var(--bg-2); padding: 2px 5px; border-radius: var(--border-radius-4);
    font-size: 12px; font-family: var(--font-family-code); color: var(--text);
    border: 1px solid var(--border);
}
.message.user .msg-bubble code { background: rgba(255,255,255,.22); border: none; color: white; }
.msg-bubble pre {
    background: #18181b; border-radius: var(--border-radius-8); padding: 12px 14px;
    overflow-x: auto; margin: 8px 0; border: 1px solid #2e2e35;
}
.msg-bubble pre code { background: none; padding: 0; color: #e4e4e7; font-size: 12px; border: none; }
.msg-bubble ul, .msg-bubble ol { padding-right: 18px; margin-bottom: 9px; }
.msg-bubble li { margin-bottom: 3px; }
.msg-bubble h1,.msg-bubble h2,.msg-bubble h3 { margin: 12px 0 5px; font-weight: var(--font-weight-bold); }
.msg-bubble h1 { font-size: 17px; }
.msg-bubble h2 { font-size: 15px; }
.msg-bubble h3 { font-size: 13px; }
.msg-bubble strong { font-weight: var(--font-weight-bold); }
.msg-bubble blockquote {
    border-right: 3px solid var(--accent);
    padding: 5px 10px; color: var(--text-2);
    background: var(--bg-2); border-radius: 0 var(--border-radius-4) var(--border-radius-4) 0;
    margin: 6px 0;
}

/* ===== Tool Cards — مسحوب من ToolUse-module و ToolUseGroup-module Replit ===== */
/* ToolUse: height 34px, foreground-dimmer, box-shadow: 0 2px 1px #02020305 */

.tool-card {
    /* ToolUsePrimitives: box-shadow: 0 2px 1px #02020305 */
    background: var(--card);
    border: 1px solid var(--border-2);
    border-radius: var(--border-radius-8);
    overflow: hidden; font-size: 12px;
    margin-bottom: var(--space-4);
    box-shadow: 0 2px 1px #02020305;   /* مسحوب من ToolUsePrimitives */
    display: grid;
    grid-template-rows: auto 0fr;
    transition: grid-template-rows 0.2s ease-out;
}

.tool-card.expanded {
    grid-template-rows: auto 1fr;
}

/* ألوان الأدوات — نقطة لونية صغيرة لليسار */
.tool-card.read_file      { border-left: 3px solid var(--tool-read); }
.tool-card.write_file     { border-left: 3px solid var(--tool-write); }
.tool-card.edit_file      { border-left: 3px solid #f59e0b; }
.tool-card.bash           { border-left: 3px solid var(--tool-bash); }
.tool-card.list_files     { border-left: 3px solid var(--tool-read); }
.tool-card.search_code    { border-left: 3px solid var(--tool-bash); }
.tool-card.git_status,
.tool-card.git_diff       { border-left: 3px solid var(--tool-git); }
.tool-card.read_logs      { border-left: 3px solid #06b6d4; }
.tool-card.http_request   { border-left: 3px solid #6366f1; }
.tool-card.restart_app    { border-left: 3px solid #f43f5e; }
.tool-card.process_status { border-left: 3px solid #10b981; }

/* ToolUse row: height 34px مسحوب من Replit */
.tool-header {
    grid-row: 1;
    height: 34px;                /* ToolUse-module: height 34px */
    padding: 0 var(--space-8);
    display: flex; align-items: center;
    justify-content: space-between;
    cursor: pointer; user-select: none;
    background: transparent;
    transition: background var(--transition-snappy);
}
.tool-header:hover { background: var(--bg-2); }

/* ToolUseGroup button: color foreground-dimmer مسحوب من Replit */
.tool-header-left {
    display: flex; align-items: center;
    gap: var(--space-6);
    color: var(--text-2);   /* foreground-dimmer */
    font-weight: var(--font-weight-medium);
    min-width: 0;
}

.tool-icon {
    width: 16px; height: 16px;
    border-radius: var(--border-radius-4);
    display: flex; align-items: center; justify-content: center;
    font-size: 10px; flex-shrink: 0;
}
.tool-card.read_file   .tool-icon { background: #dbeafe; }
.tool-card.write_file  .tool-icon { background: #dcfce7; }
.tool-card.edit_file   .tool-icon { background: #fef3c7; }
.tool-card.bash        .tool-icon { background: #fef3c7; }
.tool-card.list_files  .tool-icon { background: #dbeafe; }
.tool-card.search_code .tool-icon { background: #fef3c7; }
.tool-card.git_status  .tool-icon,
.tool-card.git_diff    .tool-icon { background: #ede9fe; }
.tool-card.read_logs   .tool-icon { background: #cffafe; }
.tool-card.http_request.tool-icon  { background: #e0e7ff; }
.tool-card.restart_app .tool-icon  { background: #ffe4e6; }
.tool-card.process_status .tool-icon { background: #d1fae5; }

.tool-name          { font-family: var(--font-family-code); font-size: 11px; color: var(--text-2); }
.tool-input-preview { color: var(--text-3); font-size: 10px; font-family: var(--font-family-code); overflow: hidden; text-overflow: ellipsis; white-space: nowrap; max-width: 180px; }
.tool-done-icon     { color: #10b981; font-size: 12px; }
.tool-truncated     { font-size: 10px; color: var(--accent); cursor: pointer; padding: 3px 0; text-align: center; }
.tool-truncated:hover { text-decoration: underline; }

.tool-spinner {
    width: 12px; height: 12px;
    border: 1.5px solid var(--border); border-top-color: var(--accent);
    border-radius: 50%; animation: spin .6s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.tool-chevron { color: var(--text-3); transition: transform var(--transition-snappy); font-size: 10px; }

/* GeneralSubagentEvents: padding-inline 8px, padding-block 6px مسحوب من Replit */
.tool-body {
    grid-row: 2;
    overflow: hidden;
    padding-inline: var(--space-8);
    /* opacity transition: 0→1 مع delay 75ms */
    opacity: 0;
    transition: opacity 0.2s ease-out 75ms;
    border-top: 1px solid var(--border-2);
}

.tool-card.expanded .tool-body {
    opacity: 1;
    padding-bottom: var(--space-8);
    display: block; /* Keeping display block for safety but grid handles layout */
}
.tool-body pre { font-family: var(--font-family-code); font-size: 11px; white-space: pre-wrap; word-break: break-all; color: var(--text); }

/* ===== Usage Summary ===== */
.usage-summary {
    margin-top: var(--space-8);
    border: 1px solid var(--border-2);
    border-radius: var(--border-radius-8);
    padding: 9px 13px;
    background: var(--bg-2);
    font-size: 11.5px;
}
.usage-row {
    display: flex; justify-content: space-between; align-items: center;
    padding: 3px 0; border-bottom: 1px solid var(--border-2);
    color: var(--text-2);
}
.usage-row:last-of-type { border-bottom: none; }
.usage-sub   { opacity: .75; font-size: 11px; padding-right: 8px; }
.usage-cost .usage-val { color: #10b981; font-weight: var(--font-weight-bold); }
.usage-cost .usage-label { color: var(--text); font-weight: var(--font-weight-medium); }
.usage-val   { font-family: var(--font-family-code); font-weight: var(--font-weight-medium); color: var(--text); }
.usage-label { color: var(--text-2); }
.usage-model { margin-top: var(--space-4); font-size: 10px; color: var(--text-3); text-align: center; font-family: var(--font-family-code); }

/* ===== أزرار الإدخال — AttachmentButton-module Replit ===== */
.input-action-btn {
    width: 32px; height: 32px;
    display: flex; align-items: center; justify-content: center;
    background: none; border: none; cursor: pointer;
    color: var(--text-3); border-radius: var(--border-radius-6);
    flex-shrink: 0;
    transition: color var(--transition-snappy), background var(--transition-snappy);
}
.input-action-btn:hover { color: var(--text-2); background: var(--bg-2); }

/* Plan toggle — SendAgentMessageButtonGroup-module Replit */
.plan-toggle-wrap { position: relative; }
.plan-toggle-btn {
    display: flex; align-items: center; gap: 5px;
    padding: 4px 10px; height: 28px;
    background: var(--bg-2); border: 1px solid var(--border);
    border-radius: var(--border-radius-round);
    cursor: pointer; font-family: inherit;
    font-size: 12px; font-weight: var(--font-weight-medium);
    color: var(--text-2);
    transition: all var(--transition-snappy);
}
.plan-toggle-btn:hover { background: var(--border-2); color: var(--text); }
.plan-toggle-dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--text-3); flex-shrink: 0;
    transition: background var(--transition-snappy);
}
.plan-toggle-btn.plan-active .plan-toggle-dot { background: var(--accent); }
.plan-toggle-btn.plan-active { color: var(--accent); border-color: var(--accent); background: var(--accent-light); }

/* ===== Input Area — ثابت في الأسفل — مستنسخ من Replit ===== */
.input-area {
    padding: var(--space-8) var(--space-16) var(--space-8);
    border-top: 1px solid var(--border);
    background: var(--bg);
    flex-shrink: 0;
    display: flex;
    justify-content: center;
    z-index: 10;
}

.input-area-inner {
    width: 100%;
    max-width: var(--feed-max);
}

/* .input-box defined below with column layout */

/* TextArea: padding 6px 6px 0, no bg, no border مسحوب من Replit */
#chat-input {
    flex: 1; border: none; background: transparent;
    font-family: var(--font-family-default);
    font-size: var(--font-size-default);
    color: var(--text);
    resize: none; min-height: 24px; max-height: 300px;   /* CodeMirrorInput: max-height 300px */
    line-height: var(--line-height-default);
    direction: rtl;
    padding: var(--space-6) var(--space-6) 0;              /* TextArea: padding 6px 6px 0 */
    cursor: text;
}
#chat-input:focus { outline: none; }
#chat-input::placeholder { color: var(--text-3); }

.input-btns { display: flex; gap: var(--space-4); align-items: center; }

/* Update .send-btn to match DynamicPrimaryButton/SendButton Replit logic */
.send-btn {
    --SendButton--size: 24px;
    width: var(--SendButton--size);
    height: var(--SendButton--size);
    background-color: var(--accent-primary-default);
    color: white;
    border: none;
    border-radius: var(--border-radius-6);
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-snappy);
    padding: 0;
}

.send-btn:hover:not([data-disabled="true"]) {
    background-color: var(--accent-hover);
}

.send-btn[data-disabled="true"] {
    cursor: default;
    pointer-events: none;
    color: var(--foreground-dimmest);
    background-color: var(--interactive-background);
}

/* Loading state for the button */
.send-btn[data-loading="true"] {
    cursor: default;
    pointer-events: none;
}

.send-btn[data-loading="true"] svg {
    animation: spin 1s linear infinite;
}

/* زر الإيقاف */
.stop-btn {
    width: 24px; height: 24px;
    border-radius: var(--border-radius-6);
    border: none; cursor: pointer;
    background: var(--bg-2); color: var(--text-2);
    display: flex; align-items: center; justify-content: center;
    transition: all var(--transition-snappy); flex-shrink: 0;
}
.stop-btn:hover { background: var(--border); color: var(--text); }

.input-hint {
    font-size: 11px; color: var(--text-3);
    text-align: center; margin-top: var(--space-6);
}

/* ===== Modal ===== */
.modal-backdrop {
    position: fixed; inset: 0; background: rgba(0,0,0,.35);
    z-index: 900; backdrop-filter: blur(2px);
}
.modal-overlay {
    position: fixed; inset: 0; display: flex;
    align-items: center; justify-content: center; z-index: 950; padding: 20px;
}
.modal-box {
    background: var(--card); border-radius: var(--border-radius-16);
    border: 1px solid var(--border);
    box-shadow: var(--shadow-2);
    width: 100%; max-height: 90vh;
    overflow: hidden; display: flex; flex-direction: column;
    animation: modalIn .2s ease;
}
@keyframes modalIn { from { opacity: 0; transform: scale(.95); } to { opacity: 1; transform: none; } }
.keys-modal-box { max-width: 560px; }

.modal-header {
    padding: 16px 20px; border-bottom: 1px solid var(--border-2);
    display: flex; align-items: center; justify-content: space-between;
}
.modal-header h2 { font-size: 16px; font-weight: var(--font-weight-bold); }
.modal-close {
    width: 26px; height: 26px; border-radius: var(--border-radius-6); border: none;
    background: var(--bg); cursor: pointer; color: var(--text-3);
    font-size: 13px; display: flex; align-items: center; justify-content: center;
    transition: all var(--transition-snappy);
}
.modal-close:hover { background: var(--error-light); color: var(--error); }

/* ===== Keys Tabs ===== */
.keys-tabs {
    display: flex; gap: var(--space-4); padding: 9px var(--space-16);
    border-bottom: 1px solid var(--border-2); background: var(--bg); flex-wrap: wrap;
}
.keys-tab {
    padding: 5px 11px; border-radius: var(--border-radius-6); border: 1px solid transparent;
    background: none; cursor: pointer; font-family: inherit;
    font-size: 12px; font-weight: var(--font-weight-medium); color: var(--text-2);
    transition: all var(--transition-snappy); display: flex; align-items: center; gap: var(--space-6);
}
.keys-tab:hover { background: var(--bg-2); }
.keys-tab.active { background: var(--card); border-color: var(--border); color: var(--text); box-shadow: var(--shadow-0); }

.provider-dot { width: 7px; height: 7px; border-radius: 50%; }
.provider-dot.openai   { background: #10b981; }
.provider-dot.gemini   { background: #3b82f6; }
.provider-dot.groq     { background: #8b5cf6; }
.provider-dot.deepseek { background: #ef4444; }

.keys-content { overflow-y: auto; flex: 1; }
.provider-panel { display: none; padding: var(--space-16) 20px; }
.provider-panel.active { display: block; }

.how-to-get {
    background: var(--bg); border: 1px solid var(--border-2);
    border-radius: var(--border-radius-8); padding: 13px; margin-bottom: 14px;
}
.how-to-get h3 { font-size: 13px; font-weight: var(--font-weight-bold); margin-bottom: 9px; }
.how-to-get ol { padding-right: 18px; color: var(--text-2); font-size: 12px; line-height: 1.9; }
.how-to-get a  { font-weight: var(--font-weight-medium); color: var(--accent); }

.note {
    display: flex; align-items: flex-start; gap: var(--space-6);
    margin-top: 9px; padding: 7px 9px; border-radius: var(--border-radius-6);
    background: var(--warning-light); color: var(--warning);
    font-size: 11.5px; line-height: 1.6;
}
.note svg { flex-shrink: 0; margin-top: 1px; }
.note.success { background: var(--success-light); color: var(--success); }

.keys-list { display: flex; flex-direction: column; gap: var(--space-6); margin-bottom: 13px; }

.key-item {
    display: flex; align-items: center; gap: var(--space-8); padding: 7px 9px;
    background: var(--bg); border: 1px solid var(--border); border-radius: var(--border-radius-6);
}
.key-item-info  { flex: 1; min-width: 0; }
.key-item-label { font-size: 12px; font-weight: var(--font-weight-medium); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.key-item-meta  { font-size: 10px; color: var(--text-3); }

.key-badge { padding: 2px 7px; border-radius: var(--border-radius-round); font-size: 10px; font-weight: var(--font-weight-bold); }
.key-badge.active   { background: var(--success-light); color: var(--success); }
.key-badge.disabled { background: var(--bg-2); color: var(--text-3); }

.key-item-actions { display: flex; align-items: center; gap: var(--space-4); flex-shrink: 0; }
.key-action-btn {
    width: 26px; height: 26px; border-radius: var(--border-radius-4); border: 1px solid var(--border);
    background: var(--bg); cursor: pointer; color: var(--text-3);
    font-size: 12px; display: flex; align-items: center; justify-content: center;
    transition: all var(--transition-snappy);
}
.key-action-btn:hover      { background: var(--bg-2); color: var(--text); border-color: var(--text-3); }
.key-action-btn.edit:hover { background: var(--accent-light); color: var(--accent); border-color: var(--accent); }
.key-action-btn.delete:hover { background: var(--error-light); color: var(--error); border-color: var(--error); }
.key-action-btn.toggle-off   { background: var(--warning-light); color: var(--warning); border-color: var(--warning); }
.key-action-btn.toggle-off:hover { background: var(--warning); color: white; }

.key-edit-row { display: flex; gap: var(--space-6); margin-top: var(--space-8); align-items: center; }
.key-edit-row input {
    flex: 1; padding: 5px 9px;
    border: 1.5px solid var(--accent); border-radius: var(--border-radius-6);
    font-size: 12px; font-family: inherit; background: var(--bg); color: var(--text);
}
.key-edit-row input:focus { outline: none; }
.key-edit-save {
    padding: 5px 10px; background: var(--accent); color: white;
    border: none; border-radius: var(--border-radius-6); cursor: pointer;
    font-size: 11px; font-weight: var(--font-weight-bold); font-family: inherit;
}
.key-edit-save:hover { background: var(--accent-hover); }
.key-edit-cancel {
    padding: 5px 8px; background: var(--bg); color: var(--text-3);
    border: 1px solid var(--border); border-radius: var(--border-radius-6);
    cursor: pointer; font-size: 11px; font-family: inherit;
}
.key-edit-cancel:hover { background: var(--bg-2); }

.add-key-form {
    display: flex; flex-direction: column; gap: var(--space-8); padding: 11px;
    background: var(--bg-2); border-radius: var(--border-radius-8);
}
.add-key-form input {
    padding: 7px 11px; border: 1px solid var(--border); border-radius: var(--border-radius-6);
    font-family: inherit; font-size: 12px; background: var(--card);
    color: var(--text); transition: border-color var(--transition-snappy);
    direction: ltr; text-align: left;
}
.add-key-form input:focus { outline: none; border-color: var(--accent); }
.add-key-form input::placeholder { color: var(--text-3); }
.add-key-btn {
    padding: 7px 13px; background: var(--accent); color: white;
    border: none; border-radius: var(--border-radius-6); cursor: pointer;
    font-family: inherit; font-size: 12px; font-weight: var(--font-weight-bold);
    transition: background var(--transition-snappy); align-self: flex-end;
}
.add-key-btn:hover { background: var(--accent-hover); }

/* ===== Typing Indicator — مطابق Replit Agent ===== */
.typing-cursor {
    display: inline-block; color: var(--accent);
    animation: blink .8s step-end infinite;
    font-weight: 400; margin-inline-start: 1px;
}
@keyframes blink { 0%,100%{opacity:1} 50%{opacity:0} }

.thinking-row {
    display: flex; align-items: center; gap: var(--space-8);
    padding: 2px 0; color: var(--text-3); font-size: 13px;
}
.thinking-spinner {
    width: 14px; height: 14px; flex-shrink: 0;
    border: 2px solid var(--border);
    border-top-color: var(--accent);
    border-radius: 50%;
    animation: thinking-spin .75s linear infinite;
}
@keyframes thinking-spin { to { transform: rotate(360deg); } }
.thinking-label  { color: var(--text-2); font-size: 13px; }
.thinking-elapsed{ color: var(--text-3); font-size: 11px; margin-right: var(--space-4); }

/* ===== Scrollbar — مطابق Replit ===== */
::-webkit-scrollbar { width: 4px; height: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--border); border-radius: var(--border-radius-round); }
::-webkit-scrollbar-thumb:hover { background: var(--text-3); }

/* ===== Bottom Nav — مطابق Replit Agent Mobile ===== */
.bottom-nav {
    display: flex; align-items: stretch; justify-content: space-around;
    height: 60px;
    background: var(--bg);
    border-top: 1px solid var(--border);
    flex-shrink: 0;
    z-index: 20;
    padding-bottom: env(safe-area-inset-bottom, 0px);
}
.nav-item {
    flex: 1; display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    gap: 3px; padding: 6px 2px;
    background: none; border: none; cursor: pointer;
    color: var(--text-3);
    font-size: 10px; font-family: inherit; font-weight: var(--font-weight-medium);
    position: relative;
    transition: color var(--transition-snappy);
}
.nav-item:hover { color: var(--text-2); }
.nav-item--active { color: var(--accent) !important; }
.nav-item--active::before {
    content: '';
    position: absolute; top: 0; left: 50%; transform: translateX(-50%);
    width: 32px; height: 3px;
    background: var(--accent);
    border-radius: 0 0 var(--border-radius-round) var(--border-radius-round);
}

/* ===== Input box — column layout to support attachments ===== */
.input-box {
    display: flex; flex-direction: column;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-8);
    padding: var(--space-4) var(--space-8) var(--space-4) var(--space-4);
    box-shadow: var(--shadow-0);
    transition: border-color var(--transition-snappy), box-shadow var(--transition-snappy);
    cursor: text; gap: 0;
}
.input-box:focus-within {
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(108,71,255,.12);
}

/* attachment preview row */
.attachment-row {
    display: flex; flex-wrap: wrap; gap: 6px;
    padding: 0 4px 4px;
}
.attachment-row:empty { display: none; }
.file-chip {
    display: flex; align-items: center; gap: 5px;
    padding: 4px 8px 4px 6px;
    background: var(--bg-2); border: 1px solid var(--border);
    border-radius: var(--border-radius-6);
    font-size: 12px; color: var(--text-2);
    max-width: 220px; cursor: default;
}
.file-chip-name {
    flex: 1; overflow: hidden; text-overflow: ellipsis; white-space: nowrap;
    direction: ltr;
}
.file-chip-remove {
    flex-shrink: 0; width: 16px; height: 16px;
    display: flex; align-items: center; justify-content: center;
    background: none; border: none; cursor: pointer;
    color: var(--text-3); font-size: 14px; line-height: 1;
    border-radius: 50%;
    transition: background var(--transition-snappy), color var(--transition-snappy);
}
.file-chip-remove:hover { background: var(--border-2); color: var(--text); }
.file-chip-icon { color: var(--text-3); flex-shrink: 0; }

/* main controls row */
.input-controls {
    display: flex; align-items: center; gap: 2px;
}

/* vertical divider */
.input-divider {
    width: 1px; height: 20px;
    background: var(--border); flex-shrink: 0; margin: 0 2px;
}

/* camera wrap */
.camera-wrap { position: relative; display: flex; align-items: center; }
.camera-main-btn { width: 28px; height: 32px; }
.camera-chevron-btn {
    width: 18px; height: 28px;
    display: flex; align-items: center; justify-content: center;
    background: none; border: none; cursor: pointer;
    color: var(--text-3); border-radius: var(--border-radius-4);
    transition: color var(--transition-snappy);
    padding: 0; margin-left: -2px;
}
.camera-chevron-btn:hover { color: var(--text-2); }

/* attach wrap */
.attach-wrap { position: relative; }

/* floating menu (attach + camera) */
.floating-menu {
    position: absolute;
    bottom: calc(100% + 10px);
    left: 0;
    min-width: 220px;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-8);
    box-shadow: var(--shadow-2);
    z-index: 200;
    padding: 4px;
    display: none;
}
.floating-menu.menu-open { display: block; }
.floating-menu-item {
    display: flex; align-items: center; gap: 10px;
    width: 100%; padding: 8px 10px;
    background: none; border: none; cursor: pointer;
    font-family: inherit; font-size: 13px;
    color: var(--text); border-radius: var(--border-radius-6);
    text-align: right; direction: rtl;
    transition: background var(--transition-snappy);
}
.floating-menu-item svg { flex-shrink: 0; color: var(--text-3); }
.floating-menu-item:hover { background: var(--bg-2); }
.menu-shortcut {
    margin-right: auto; color: var(--text-3);
    font-family: var(--font-family-code); font-size: 11px;
    direction: ltr;
}
.camera-menu { left: -50px; min-width: 180px; }

/* ===== Agent Modes Panel ===== */
.agent-modes-panel {
    bottom: calc(100% + 8px);
    left: 0; right: auto;
    width: 290px;
    padding: 10px;
    position: absolute;
    background: var(--card);
    border: 1px solid var(--border);
    border-radius: var(--border-radius-8);
    box-shadow: var(--shadow-2);
    z-index: 200;
    display: none;
}
.agent-modes-panel.show { display: block; }
.agent-modes-title {
    font-size: 11px; font-weight: var(--font-weight-bold);
    color: var(--text-3); text-transform: uppercase; letter-spacing: .06em;
    padding: 0 4px 8px; border-bottom: 1px solid var(--border); margin-bottom: 6px;
}
.agent-mode-row {
    display: flex; align-items: flex-start; gap: 10px;
    padding: 10px 8px; border-radius: var(--border-radius-6);
    cursor: pointer;
    transition: background var(--transition-snappy);
}
.agent-mode-row:hover { background: var(--bg-2); }
.agent-mode-row + .agent-mode-row { border-top: 1px solid var(--border); }
.agent-mode-glyph {
    width: 28px; height: 28px;
    display: flex; align-items: center; justify-content: center;
    background: var(--bg-2); border-radius: var(--border-radius-6);
    color: var(--text-2); flex-shrink: 0; font-size: 14px; font-weight: 700;
}
.agent-glyph-max { font-size: 18px; }
.agent-mode-body { flex: 1; min-width: 0; }
.agent-mode-name { display: block; font-size: 13px; font-weight: var(--font-weight-medium); color: var(--text); }
.agent-mode-desc { display: block; font-size: 11px; color: var(--text-3); margin-top: 2px; line-height: 1.4; }
.core-star { color: var(--accent); }

/* toggle switch */
.agent-mode-switch {
    width: 34px; height: 20px; flex-shrink: 0;
    background: var(--border-2); border-radius: 10px;
    position: relative; cursor: pointer;
    transition: background var(--transition-snappy);
    margin-top: 4px;
}
.agent-mode-switch.switch-on { background: var(--accent); }
.switch-knob {
    position: absolute; top: 3px; left: 3px;
    width: 14px; height: 14px; border-radius: 50%;
    background: white; transition: transform var(--transition-snappy);
}
.switch-on .switch-knob { transform: translateX(14px); }

/* autonomous sub-tier buttons */
.autonomous-tier {
    display: flex; gap: 5px; margin-top: 8px; flex-wrap: wrap;
}
.tier-btn {
    padding: 3px 10px; border-radius: var(--border-radius-round);
    border: 1px solid var(--border); background: var(--bg);
    font-family: inherit; font-size: 11px; font-weight: var(--font-weight-medium);
    color: var(--text-2); cursor: pointer;
    transition: all var(--transition-snappy);
}
.tier-btn:hover { border-color: var(--accent); color: var(--accent); }
.tier-btn.tier-active { background: var(--accent); border-color: var(--accent); color: white; }
.tier-footer { display: block; font-size: 10px; color: var(--text-3); margin-top: 5px; }

/* ===== Diff View ===== */
.diff-view {
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 12px;
    line-height: 1.6;
    border-radius: var(--border-radius-6);
    overflow: hidden;
    border: 1px solid var(--border-2);
    margin: 4px 0;
}
.diff-header {
    background: var(--bg-2);
    border-bottom: 1px solid var(--border-2);
    padding: 4px 10px;
    font-size: 11px;
    color: var(--text-3);
    display: flex;
    gap: 12px;
}
.diff-header .diff-added-count { color: #2ea043; font-weight: 600; }
.diff-header .diff-removed-count { color: #cf222e; font-weight: 600; }
.diff-line {
    display: flex;
    padding: 0 10px;
    min-height: 20px;
    align-items: flex-start;
    white-space: pre-wrap;
    word-break: break-all;
}
.diff-line-num {
    min-width: 28px;
    color: var(--text-3);
    font-size: 11px;
    user-select: none;
    padding-right: 8px;
    opacity: 0.6;
}
.diff-line-sign {
    min-width: 14px;
    font-weight: bold;
    user-select: none;
}
.diff-line-text { flex: 1; }
.diff-line.added {
    background: rgba(46, 160, 67, 0.12);
    color: #2ea043;
}
.diff-line.added .diff-line-sign { color: #2ea043; }
.diff-line.removed {
    background: rgba(207, 34, 46, 0.1);
    color: #cf222e;
}
.diff-line.removed .diff-line-sign { color: #cf222e; }
.diff-line.context { color: var(--text-2); }
.diff-sep {
    background: var(--bg-2);
    color: var(--text-3);
    font-size: 11px;
    padding: 2px 10px;
    border-top: 1px solid var(--border-2);
    border-bottom: 1px solid var(--border-2);
}

/* ===== Terminal Output ===== */
.terminal-output {
    background: #0d1117;
    color: #c9d1d9;
    font-family: 'SFMono-Regular', Consolas, 'Liberation Mono', Menlo, monospace;
    font-size: 12px;
    line-height: 1.6;
    padding: 10px 12px;
    border-radius: var(--border-radius-6);
    overflow-x: auto;
    white-space: pre-wrap;
    word-break: break-word;
    border: 1px solid #30363d;
    max-height: 400px;
    overflow-y: auto;
}
.terminal-output .t-success { color: #3fb950; }
.terminal-output .t-error   { color: #f85149; }
.terminal-output .t-warn    { color: #d29922; }
.terminal-output .t-prompt  { color: #58a6ff; }

/* ===== Parallel Badge ===== */
.tool-parallel-badge {
    display: inline-flex;
    align-items: center;
    gap: 5px;
    background: rgba(108, 71, 255, 0.12);
    border: 1px solid rgba(108, 71, 255, 0.3);
    border-radius: var(--border-radius-round);
    padding: 2px 8px;
    font-size: 11px;
    color: var(--accent);
    font-weight: var(--font-weight-medium);
    margin-bottom: 6px;
}

/* ===== File Tree Panel ===== */
.file-tree-panel {
    width: 240px;
    min-width: 180px;
    max-width: 320px;
    height: 100%;
    background: var(--bg);
    border-right: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    flex-shrink: 0;
    overflow: hidden;
    transition: width var(--transition-chill);
}
.file-tree-panel.hidden { width: 0; min-width: 0; border: none; overflow: hidden; }
.file-tree-header {
    height: 40px;
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 10px;
    border-bottom: 1px solid var(--border);
    font-size: 11px;
    font-weight: var(--font-weight-semibold);
    color: var(--text-2);
    letter-spacing: 0.05em;
    text-transform: uppercase;
    flex-shrink: 0;
}
.file-tree-refresh {
    background: none; border: none; cursor: pointer;
    color: var(--text-3); padding: 4px; border-radius: 4px;
    display: flex; align-items: center;
    transition: color var(--transition-snappy);
}
.file-tree-refresh:hover { color: var(--text-1); background: var(--bg-2); }
.file-tree-body {
    flex: 1;
    overflow-y: auto;
    padding: 4px 0;
}
.file-tree-empty {
    padding: 20px 12px;
    font-size: 12px;
    color: var(--text-3);
    text-align: center;
}
.tree-node {
    display: flex;
    align-items: center;
    gap: 5px;
    padding: 3px 8px;
    cursor: pointer;
    font-size: 12.5px;
    color: var(--text-2);
    border-radius: 4px;
    margin: 0 4px;
    user-select: none;
    transition: background var(--transition-snappy);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.tree-node:hover { background: var(--bg-2); color: var(--text-1); }
.tree-node.dir { font-weight: var(--font-weight-medium); }
.tree-node .tree-icon { flex-shrink: 0; opacity: 0.7; }
.tree-node .tree-name { overflow: hidden; text-overflow: ellipsis; flex: 1; }
.tree-node-children { overflow: hidden; }
.tree-node-children.collapsed { display: none; }
.tree-toggle { width: 12px; text-align: center; color: var(--text-3); font-size: 10px; flex-shrink: 0; }

/* ===== App layout with file tree ===== */
#app { display: flex !important; flex-direction: row; }
.app-inner { display: flex; flex-direction: row; flex: 1; height: 100vh; overflow: hidden; }

/* ===== Responsive / Mobile ===== */
@media (max-width: 640px) {
    .sidebar { position: fixed; right: 0; top: 0; bottom: 0; transform: translateX(100%); z-index: 100; transition: transform var(--transition-chill); }
    .sidebar.open { transform: translateX(0); box-shadow: var(--shadow-2); }
    .sidebar-toggle { display: flex; }
    :root { --sidebar-w: 80vw; }
    .main-area { height: 100dvh; }
    .messages-container { padding-bottom: 0; }
    .floating-menu { left: 0; }
    .agent-modes-panel { width: calc(100vw - 48px); }
}

/* ===== Search ===== */
.search-wrap {
    position: relative;
    margin-bottom: 8px;
}
.search-icon {
    position: absolute;
    right: 9px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    pointer-events: none;
}
.search-input {
    width: 100%;
    box-sizing: border-box;
    background: var(--bg-input, #1a1a2e);
    border: 1px solid var(--border-color, rgba(255,255,255,0.1));
    border-radius: 8px;
    color: var(--text-primary, #fff);
    font-size: 12px;
    padding: 7px 32px 7px 28px;
    outline: none;
    transition: border-color 0.15s;
}
.search-input:focus { border-color: var(--accent, #6C47FF); }
.search-input::placeholder { color: var(--text-muted, #666); }
.search-clear {
    position: absolute;
    left: 8px;
    top: 50%;
    transform: translateY(-50%);
    background: none;
    border: none;
    color: var(--text-muted, #888);
    cursor: pointer;
    font-size: 11px;
    padding: 2px 4px;
    border-radius: 4px;
    line-height: 1;
}
.search-clear:hover { color: var(--text-primary, #fff); background: rgba(255,255,255,0.08); }
.search-result-snippet {
    font-size: 10px;
    color: var(--text-muted, #888);
    margin-top: 2px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.search-result-snippet mark {
    background: rgba(108,71,255,0.35);
    color: #c4b5ff;
    border-radius: 2px;
    padding: 0 1px;
}

/* ===== Export Dropdown ===== */
.export-wrap { position: relative; }
.export-dropdown {
    position: absolute;
    top: calc(100% + 6px);
    left: 0;
    background: var(--bg-surface, #1a1a2e);
    border: 1px solid var(--border-color, rgba(255,255,255,0.12));
    border-radius: 10px;
    overflow: hidden;
    z-index: 200;
    min-width: 160px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.4);
    animation: slideIn 0.15s ease-out;
}
.export-option {
    display: flex;
    align-items: center;
    gap: 8px;
    width: 100%;
    padding: 10px 14px;
    background: none;
    border: none;
    color: var(--text-primary, #fff);
    font-size: 13px;
    cursor: pointer;
    text-align: right;
    transition: background 0.12s;
}
.export-option:hover { background: rgba(255,255,255,0.07); }

/* ===== Analytics Modal ===== */
.analytics-modal-box {
    max-width: 620px;
    width: 94%;
    max-height: 80vh;
    overflow-y: auto;
}
.analytics-days-sel {
    background: var(--bg-input, #1a1a2e);
    border: 1px solid var(--border-color, rgba(255,255,255,0.12));
    border-radius: 8px;
    color: var(--text-primary, #fff);
    font-size: 12px;
    padding: 5px 10px;
    outline: none;
    cursor: pointer;
}
.analytics-loading {
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 10px;
    padding: 40px;
    color: var(--text-muted, #888);
    font-size: 14px;
}
.analytics-spinner {
    width: 18px; height: 18px;
    border: 2px solid rgba(255,255,255,0.1);
    border-top-color: var(--accent, #6C47FF);
    border-radius: 50%;
    animation: spin 0.7s linear infinite;
}
@keyframes spin { to { transform: rotate(360deg); } }

.analytics-cards {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 12px;
    margin-bottom: 20px;
}
.analytics-card {
    background: var(--bg-input, rgba(255,255,255,0.04));
    border: 1px solid var(--border-color, rgba(255,255,255,0.08));
    border-radius: 12px;
    padding: 16px;
    text-align: center;
}
.analytics-card-label {
    font-size: 11px;
    color: var(--text-muted, #888);
    margin-bottom: 6px;
    text-transform: uppercase;
    letter-spacing: 0.4px;
}
.analytics-card-value {
    font-size: 24px;
    font-weight: 700;
    color: var(--text-primary, #fff);
    font-variant-numeric: tabular-nums;
}
.analytics-section { margin-bottom: 20px; }
.analytics-section-title {
    font-size: 13px;
    font-weight: 600;
    color: var(--text-secondary, #aaa);
    margin-bottom: 10px;
}
.analytics-chart {
    display: flex;
    align-items: flex-end;
    gap: 4px;
    height: 80px;
    background: var(--bg-input, rgba(255,255,255,0.03));
    border: 1px solid var(--border-color, rgba(255,255,255,0.07));
    border-radius: 10px;
    padding: 10px 12px 8px;
    overflow: hidden;
}
.chart-bar-wrap {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: flex-end;
    height: 100%;
    gap: 4px;
    cursor: default;
    position: relative;
}
.chart-bar {
    width: 100%;
    max-width: 24px;
    background: var(--accent, #6C47FF);
    border-radius: 4px 4px 0 0;
    transition: opacity 0.15s;
    opacity: 0.75;
    min-height: 2px;
}
.chart-bar-wrap:hover .chart-bar { opacity: 1; }
.chart-bar-label {
    font-size: 9px;
    color: var(--text-muted, #666);
    white-space: nowrap;
}
.chart-bar-wrap[title]:hover::after {
    content: attr(title);
    position: absolute;
    bottom: calc(100% + 4px);
    left: 50%;
    transform: translateX(-50%);
    background: rgba(0,0,0,0.8);
    color: #fff;
    font-size: 10px;
    padding: 3px 7px;
    border-radius: 6px;
    white-space: nowrap;
    z-index: 10;
}
.model-breakdown { display: flex; flex-direction: column; gap: 8px; }
.model-row {
    display: flex;
    align-items: center;
    gap: 10px;
}
.model-row-name {
    font-size: 12px;
    color: var(--text-secondary, #aaa);
    min-width: 160px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.model-row-bar-wrap {
    flex: 1;
    background: rgba(255,255,255,0.05);
    border-radius: 6px;
    height: 8px;
    overflow: hidden;
}
.model-row-bar {
    height: 100%;
    background: var(--accent, #6C47FF);
    border-radius: 6px;
    transition: width 0.4s ease;
    opacity: 0.75;
}
.model-row-count {
    font-size: 11px;
    color: var(--text-muted, #888);
    min-width: 30px;
    text-align: left;
}
.analytics-empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    gap: 12px;
    padding: 40px;
    color: var(--text-muted, #666);
    font-size: 14px;
}