/* ========================================
   code.net.sa AI — Design System
   ======================================== */

:root {
    /* Colors */
    --bg-primary: #0a0a0f;
    --bg-secondary: #12121a;
    --bg-tertiary: #1a1a2e;
    --bg-elevated: rgba(255, 255, 255, 0.03);
    --bg-hover: rgba(255, 255, 255, 0.06);
    --bg-active: rgba(99, 102, 241, 0.12);

    --text-primary: #e8e8ed;
    --text-secondary: #9ca3af;
    --text-tertiary: #6b7280;
    --text-inverse: #0a0a0f;

    --accent-start: #6366f1;
    --accent-end: #a855f7;
    --accent-mid: #818cf8;
    --accent-glow: rgba(99, 102, 241, 0.3);

    --border-subtle: rgba(255, 255, 255, 0.06);
    --border-medium: rgba(255, 255, 255, 0.1);
    --border-accent: rgba(99, 102, 241, 0.3);

    --success: #10b981;
    --warning: #f59e0b;
    --error: #ef4444;

    /* Spacing */
    --space-xs: 4px;
    --space-sm: 8px;
    --space-md: 12px;
    --space-lg: 16px;
    --space-xl: 24px;
    --space-2xl: 32px;
    --space-3xl: 48px;
    --space-4xl: 64px;

    /* Typography */
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-mono: 'JetBrains Mono', 'Fira Code', 'Cascadia Code', monospace;
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.8125rem;
    --font-size-base: 0.875rem;
    --font-size-md: 0.9375rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.5rem;
    --font-size-2xl: 2rem;
    --font-size-3xl: 2.5rem;

    /* Radius */
    --radius-sm: 6px;
    --radius-md: 10px;
    --radius-lg: 14px;
    --radius-xl: 20px;
    --radius-full: 9999px;

    /* Transitions */
    --transition-fast: 150ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-base: 250ms cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 400ms cubic-bezier(0.4, 0, 0.2, 1);

    /* Shadows */
    --shadow-sm: 0 1px 2px rgba(0, 0, 0, 0.3);
    --shadow-md: 0 4px 12px rgba(0, 0, 0, 0.4);
    --shadow-lg: 0 8px 32px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 40px rgba(99, 102, 241, 0.15);

    /* Sidebar */
    --sidebar-width: 280px;
}

/* ========================================
   Reset & Base
   ======================================== */

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

html {
    font-size: 16px;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

body {
    font-family: var(--font-sans);
    background: var(--bg-primary);
    color: var(--text-primary);
    line-height: 1.6;
    overflow: hidden;
    height: 100vh;
    width: 100vw;
}

/* ========================================
   Animated Background
   ======================================== */

.bg-grid {
    position: fixed;
    inset: 0;
    background-image:
        linear-gradient(rgba(255,255,255,0.015) 1px, transparent 1px),
        linear-gradient(90deg, rgba(255,255,255,0.015) 1px, transparent 1px);
    background-size: 60px 60px;
    pointer-events: none;
    z-index: 0;
}

.bg-glow {
    position: fixed;
    border-radius: 50%;
    filter: blur(120px);
    opacity: 0.4;
    pointer-events: none;
    z-index: 0;
    animation: float 20s ease-in-out infinite;
}

.bg-glow-1 {
    width: 600px;
    height: 600px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.15), transparent 70%);
    top: -200px;
    right: -100px;
    animation-delay: 0s;
}

.bg-glow-2 {
    width: 500px;
    height: 500px;
    background: radial-gradient(circle, rgba(168, 85, 247, 0.1), transparent 70%);
    bottom: -150px;
    left: -100px;
    animation-delay: -7s;
}

.bg-glow-3 {
    width: 400px;
    height: 400px;
    background: radial-gradient(circle, rgba(99, 102, 241, 0.08), transparent 70%);
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    animation-delay: -14s;
}

@keyframes float {
    0%, 100% { transform: translate(0, 0) scale(1); }
    25% { transform: translate(30px, -20px) scale(1.05); }
    50% { transform: translate(-20px, 30px) scale(0.95); }
    75% { transform: translate(20px, 20px) scale(1.02); }
}

/* ========================================
   App Layout
   ======================================== */

.app-container {
    display: flex;
    height: 100vh;
    width: 100vw;
    position: relative;
    z-index: 1;
}

/* ========================================
   Sidebar
   ======================================== */

.sidebar {
    width: var(--sidebar-width);
    min-width: var(--sidebar-width);
    height: 100vh;
    background: rgba(18, 18, 26, 0.85);
    backdrop-filter: blur(20px);
    -webkit-backdrop-filter: blur(20px);
    border-right: 1px solid var(--border-subtle);
    display: flex;
    flex-direction: column;
    transition: transform var(--transition-base), opacity var(--transition-base);
    z-index: 100;
}

.sidebar.collapsed {
    transform: translateX(-100%);
    opacity: 0;
    position: absolute;
    pointer-events: none;
}

.sidebar-header {
    padding: var(--space-lg);
    display: flex;
    align-items: center;
    justify-content: space-between;
    border-bottom: 1px solid var(--border-subtle);
}

.logo {
    display: flex;
    align-items: center;
    gap: var(--space-md);
}

.logo-icon svg {
    width: 36px;
    height: 36px;
    display: block;
}

.logo-text {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
}

.logo-title {
    font-size: var(--font-size-base);
    font-weight: 700;
    color: var(--text-primary);
    letter-spacing: -0.02em;
}

.logo-badge {
    font-size: var(--font-size-xs);
    font-weight: 700;
    padding: 2px 8px;
    border-radius: var(--radius-full);
    background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
    color: white;
    letter-spacing: 0.05em;
}

.btn-new-chat {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    margin: var(--space-lg);
    padding: var(--space-md) var(--space-lg);
    border: 1px dashed var(--border-medium);
    border-radius: var(--radius-md);
    background: transparent;
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    font-weight: 500;
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-new-chat:hover {
    background: var(--bg-hover);
    border-color: var(--border-accent);
    color: var(--text-primary);
}

.sidebar-section {
    flex: 1;
    overflow-y: auto;
    padding: 0 var(--space-sm);
}

.sidebar-section::-webkit-scrollbar {
    width: 4px;
}

.sidebar-section::-webkit-scrollbar-track {
    background: transparent;
}

.sidebar-section::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: var(--radius-full);
}

.sidebar-section-title {
    font-size: var(--font-size-xs);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    color: var(--text-tertiary);
    padding: var(--space-md) var(--space-md);
}

.chat-list-item {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-md);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
    margin-bottom: 2px;
}

.chat-list-item:hover {
    background: var(--bg-hover);
}

.chat-list-item.active {
    background: var(--bg-active);
}

.chat-list-item .chat-icon {
    color: var(--text-tertiary);
    flex-shrink: 0;
}

.chat-list-item .chat-name {
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
    flex: 1;
}

.chat-list-item.active .chat-name {
    color: var(--text-primary);
}

.chat-list-item .chat-delete {
    opacity: 0;
    background: none;
    border: none;
    color: var(--text-tertiary);
    cursor: pointer;
    padding: 2px;
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
    flex-shrink: 0;
}

.chat-list-item:hover .chat-delete {
    opacity: 1;
}

.chat-list-item .chat-delete:hover {
    color: var(--error);
    background: rgba(239, 68, 68, 0.1);
}

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

.model-selector {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    font-size: var(--font-size-sm);
    color: var(--text-secondary);
}

.model-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background: var(--success);
    box-shadow: 0 0 8px rgba(16, 185, 129, 0.5);
    animation: pulse-dot 2s ease-in-out infinite;
}

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

.model-status {
    margin-left: auto;
    font-size: var(--font-size-xs);
    color: var(--success);
    font-weight: 500;
}

/* ========================================
   Main Content
   ======================================== */

.main-content {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
    position: relative;
}

/* ========================================
   Top Bar
   ======================================== */

.topbar {
    display: flex;
    align-items: center;
    gap: var(--space-md);
    padding: var(--space-md) var(--space-xl);
    border-bottom: 1px solid var(--border-subtle);
    background: rgba(10, 10, 15, 0.6);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    min-height: 56px;
    z-index: 10;
}

.topbar-title {
    flex: 1;
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--text-secondary);
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.topbar-actions {
    display: flex;
    gap: var(--space-sm);
}

.btn-icon {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    border: none;
    background: transparent;
    color: var(--text-secondary);
    border-radius: var(--radius-md);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.btn-icon:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

/* ========================================
   Chat Area
   ======================================== */

.chat-area {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    scroll-behavior: smooth;
}

.chat-area::-webkit-scrollbar {
    width: 6px;
}

.chat-area::-webkit-scrollbar-track {
    background: transparent;
}

.chat-area::-webkit-scrollbar-thumb {
    background: var(--border-medium);
    border-radius: var(--radius-full);
}

/* Welcome Screen */

.welcome-screen {
    flex: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    padding: var(--space-3xl);
    animation: fadeIn 0.6s ease-out;
}

@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.welcome-logo {
    text-align: center;
    margin-bottom: var(--space-3xl);
}

.welcome-icon {
    margin-bottom: var(--space-xl);
    animation: float-icon 6s ease-in-out infinite;
}

.welcome-icon svg {
    width: 80px;
    height: 80px;
}

@keyframes float-icon {
    0%, 100% { transform: translateY(0); }
    50% { transform: translateY(-8px); }
}

.welcome-title {
    font-size: var(--font-size-3xl);
    font-weight: 800;
    letter-spacing: -0.03em;
    margin-bottom: var(--space-md);
}

.gradient-text {
    background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.welcome-subtitle {
    font-size: var(--font-size-md);
    color: var(--text-secondary);
    max-width: 500px;
    line-height: 1.7;
}

.suggestion-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: var(--space-md);
    max-width: 650px;
    width: 100%;
}

.suggestion-card {
    display: flex;
    align-items: flex-start;
    gap: var(--space-md);
    padding: var(--space-lg);
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-lg);
    background: var(--bg-elevated);
    cursor: pointer;
    text-align: left;
    font-family: var(--font-sans);
    transition: all var(--transition-fast);
    animation: fadeIn 0.6s ease-out backwards;
}

.suggestion-card:nth-child(1) { animation-delay: 0.1s; }
.suggestion-card:nth-child(2) { animation-delay: 0.2s; }
.suggestion-card:nth-child(3) { animation-delay: 0.3s; }
.suggestion-card:nth-child(4) { animation-delay: 0.4s; }

.suggestion-card:hover {
    background: var(--bg-hover);
    border-color: var(--border-accent);
    transform: translateY(-2px);
    box-shadow: var(--shadow-glow);
}

.suggestion-icon {
    width: 40px;
    height: 40px;
    border-radius: var(--radius-md);
    background: linear-gradient(135deg, rgba(99, 102, 241, 0.15), rgba(168, 85, 247, 0.15));
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accent-mid);
    flex-shrink: 0;
}

.suggestion-text {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.suggestion-text strong {
    font-size: var(--font-size-sm);
    font-weight: 600;
    color: var(--text-primary);
}

.suggestion-text span {
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    line-height: 1.4;
}

/* ========================================
   Messages
   ======================================== */

.messages-container {
    padding: var(--space-xl) 0;
    display: none;
}

.messages-container.active {
    display: block;
}

.message {
    padding: var(--space-lg) var(--space-3xl);
    animation: messageIn 0.3s ease-out;
}

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

.message-user {
    /* User messages slightly different background */
}

.message-assistant {
    background: rgba(255, 255, 255, 0.015);
}

.message-inner {
    max-width: 800px;
    margin: 0 auto;
    display: flex;
    gap: var(--space-lg);
}

.message-avatar {
    width: 32px;
    height: 32px;
    border-radius: var(--radius-md);
    display: flex;
    align-items: center;
    justify-content: center;
    flex-shrink: 0;
    font-size: var(--font-size-sm);
    font-weight: 600;
}

.message-user .message-avatar {
    background: linear-gradient(135deg, #3b82f6, #1d4ed8);
    color: white;
}

.message-assistant .message-avatar {
    background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
    color: white;
}

.message-content {
    flex: 1;
    min-width: 0;
    font-size: var(--font-size-base);
    line-height: 1.75;
    color: var(--text-primary);
}

.message-content p {
    margin-bottom: var(--space-md);
}

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

/* Code blocks */
.message-content pre {
    background: #0d1117;
    border: 1px solid var(--border-subtle);
    border-radius: var(--radius-md);
    padding: 0;
    margin: var(--space-md) 0;
    overflow: hidden;
    position: relative;
}

.code-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: var(--space-sm) var(--space-lg);
    background: rgba(255, 255, 255, 0.04);
    border-bottom: 1px solid var(--border-subtle);
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
    font-family: var(--font-mono);
}

.copy-btn {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    background: none;
    border: none;
    color: var(--text-tertiary);
    font-family: var(--font-sans);
    font-size: var(--font-size-xs);
    cursor: pointer;
    padding: var(--space-xs) var(--space-sm);
    border-radius: var(--radius-sm);
    transition: all var(--transition-fast);
}

.copy-btn:hover {
    background: var(--bg-hover);
    color: var(--text-primary);
}

.copy-btn.copied {
    color: var(--success);
}

.message-content pre code {
    display: block;
    padding: var(--space-lg);
    font-family: var(--font-mono);
    font-size: var(--font-size-sm);
    line-height: 1.6;
    overflow-x: auto;
    color: #c9d1d9;
}

.message-content code {
    font-family: var(--font-mono);
    font-size: 0.85em;
    background: rgba(255, 255, 255, 0.06);
    padding: 2px 6px;
    border-radius: 4px;
    color: var(--accent-mid);
}

.message-content pre code {
    background: none;
    padding: var(--space-lg);
    color: #c9d1d9;
}

/* Lists */
.message-content ul, .message-content ol {
    margin: var(--space-md) 0;
    padding-left: var(--space-xl);
}

.message-content li {
    margin-bottom: var(--space-xs);
}

/* Headings */
.message-content h1, .message-content h2, .message-content h3 {
    margin: var(--space-xl) 0 var(--space-md);
    font-weight: 700;
    letter-spacing: -0.02em;
}

.message-content h1 { font-size: var(--font-size-xl); }
.message-content h2 { font-size: var(--font-size-lg); }
.message-content h3 { font-size: var(--font-size-md); }

/* Strong and em */
.message-content strong { font-weight: 600; color: var(--text-primary); }
.message-content em { font-style: italic; }

/* Blockquote */
.message-content blockquote {
    border-left: 3px solid var(--accent-start);
    padding-left: var(--space-lg);
    margin: var(--space-md) 0;
    color: var(--text-secondary);
}

/* Tables */
.message-content table {
    width: 100%;
    border-collapse: collapse;
    margin: var(--space-md) 0;
    font-size: var(--font-size-sm);
}

.message-content th, .message-content td {
    border: 1px solid var(--border-subtle);
    padding: var(--space-sm) var(--space-md);
    text-align: left;
}

.message-content th {
    background: var(--bg-elevated);
    font-weight: 600;
}

/* Typing indicator */
.typing-indicator {
    display: flex;
    gap: 4px;
    padding: var(--space-sm) 0;
}

.typing-indicator span {
    width: 6px;
    height: 6px;
    border-radius: 50%;
    background: var(--accent-mid);
    animation: typing 1.4s ease-in-out infinite;
}

.typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.4s; }

@keyframes typing {
    0%, 60%, 100% { transform: translateY(0); opacity: 0.4; }
    30% { transform: translateY(-6px); opacity: 1; }
}

/* ========================================
   Input Area
   ======================================== */

.input-area {
    padding: var(--space-lg) var(--space-3xl) var(--space-xl);
    background: linear-gradient(to top, var(--bg-primary) 60%, transparent);
}

.input-container {
    max-width: 800px;
    margin: 0 auto;
}

.input-wrapper {
    display: flex;
    align-items: flex-end;
    gap: var(--space-sm);
    background: var(--bg-secondary);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-xl);
    padding: var(--space-sm) var(--space-sm) var(--space-sm) var(--space-xl);
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-md);
}

.input-wrapper:focus-within {
    border-color: var(--accent-start);
    box-shadow: var(--shadow-glow);
}

.input-wrapper textarea {
    flex: 1;
    background: none;
    border: none;
    outline: none;
    color: var(--text-primary);
    font-family: var(--font-sans);
    font-size: var(--font-size-base);
    line-height: 1.5;
    padding: var(--space-md) 0;
    resize: none;
    max-height: 200px;
    min-height: 24px;
}

.input-wrapper textarea::placeholder {
    color: var(--text-tertiary);
}

.input-actions {
    display: flex;
    align-items: center;
    gap: var(--space-xs);
    padding-bottom: var(--space-xs);
}

.btn-send {
    width: 40px;
    height: 40px;
    border: none;
    border-radius: var(--radius-lg);
    background: linear-gradient(135deg, var(--accent-start), var(--accent-end));
    color: white;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: all var(--transition-fast);
    opacity: 0.5;
}

.btn-send:not(:disabled) {
    opacity: 1;
}

.btn-send:not(:disabled):hover {
    transform: scale(1.05);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.4);
}

.btn-send:disabled {
    cursor: not-allowed;
}

.input-footer {
    text-align: center;
    padding-top: var(--space-sm);
    font-size: var(--font-size-xs);
    color: var(--text-tertiary);
}

/* Stop button */
.btn-stop {
    position: fixed;
    bottom: 120px;
    left: 50%;
    transform: translateX(-50%);
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) var(--space-lg);
    border: 1px solid var(--border-medium);
    border-radius: var(--radius-full);
    background: var(--bg-secondary);
    color: var(--text-secondary);
    font-family: var(--font-sans);
    font-size: var(--font-size-sm);
    cursor: pointer;
    z-index: 50;
    transition: all var(--transition-fast);
    box-shadow: var(--shadow-lg);
}

.btn-stop:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border-color: var(--error);
}

/* ========================================
   Syntax Highlighting (GitHub Dark Theme)
   ======================================== */

.hljs-comment, .hljs-quote { color: #8b949e; font-style: italic; }
.hljs-keyword, .hljs-selector-tag { color: #ff7b72; }
.hljs-literal, .hljs-number, .hljs-tag .hljs-attr { color: #79c0ff; }
.hljs-string, .hljs-doctag { color: #a5d6ff; }
.hljs-title, .hljs-section, .hljs-selector-id { color: #d2a8ff; }
.hljs-subst { color: #c9d1d9; }
.hljs-type, .hljs-class .hljs-title { color: #ffa657; }
.hljs-built_in, .hljs-builtin-name { color: #ffa657; }
.hljs-addition { color: #aff5b4; background: rgba(46, 160, 67, 0.15); }
.hljs-deletion { color: #ffdcd7; background: rgba(248, 81, 73, 0.15); }
.hljs-meta { color: #79c0ff; }
.hljs-attribute { color: #79c0ff; }
.hljs-function { color: #d2a8ff; }
.hljs-params { color: #c9d1d9; }
.hljs-property { color: #79c0ff; }
.hljs-variable { color: #ffa657; }
.hljs-operator { color: #ff7b72; }

/* ========================================
   Responsive
   ======================================== */

@media (max-width: 768px) {
    .sidebar {
        position: fixed;
        left: 0;
        top: 0;
        height: 100vh;
        z-index: 200;
        box-shadow: var(--shadow-lg);
    }

    .sidebar.collapsed {
        transform: translateX(-100%);
    }

    .welcome-title {
        font-size: var(--font-size-xl);
    }

    .suggestion-grid {
        grid-template-columns: 1fr;
    }

    .message {
        padding: var(--space-md) var(--space-lg);
    }

    .input-area {
        padding: var(--space-md) var(--space-lg);
    }

    .welcome-screen {
        padding: var(--space-xl);
    }
}

@media (max-width: 480px) {
    .welcome-icon svg {
        width: 60px;
        height: 60px;
    }

    .welcome-subtitle {
        font-size: var(--font-size-sm);
    }
}

/* ========================================
   Overlay for mobile sidebar
   ======================================== */

.sidebar-overlay {
    display: none;
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    z-index: 150;
    backdrop-filter: blur(4px);
}

.sidebar-overlay.active {
    display: block;
}

/* ========================================
   Error message
   ======================================== */

.message-error {
    color: var(--error);
    background: rgba(239, 68, 68, 0.05);
    border: 1px solid rgba(239, 68, 68, 0.15);
    border-radius: var(--radius-md);
    padding: var(--space-md) var(--space-lg);
    margin: var(--space-sm) 0;
    font-size: var(--font-size-sm);
}

/* ========================================
   Thinking indicator
   ======================================== */

.thinking-indicator {
    display: flex;
    align-items: center;
    gap: var(--space-sm);
    padding: var(--space-sm) 0;
    color: var(--accent-mid);
    font-size: var(--font-size-sm);
    font-weight: 500;
    animation: fadeIn 0.3s ease-out;
}

.thinking-indicator svg {
    animation: spin 2s linear infinite;
}

@keyframes spin {
    from { transform: rotate(0deg); }
    to { transform: rotate(360deg); }
}

/* ========================================
   Cursor blink for streaming
   ======================================== */

.cursor-blink::after {
    content: '▊';
    animation: blink 1s step-end infinite;
    color: var(--accent-mid);
    font-weight: 300;
}

@keyframes blink {
    50% { opacity: 0; }
}