/**
 * More Brains - Layout Styles
 * Main application layout and structure
 */

/* ========================================
   App Container
   ======================================== */
.cortex {
    display: flex;
    flex-direction: column;
    height: 100vh;
    background-color: var(--bg-main);
}

.cortex__body {
    display: flex;
    flex: 1;
    min-height: 0;
}

/* ========================================
   Sidebar (Left & Right)
   ======================================== */
.cortex__sidebar {
    width: 260px;
    min-width: 260px;
    background-color: var(--bg-panel);
    overflow-y: auto;
    padding: var(--space-4);
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
}

.cortex__sidebar--left {
    border-right: 1px solid var(--border-default);
}

.cortex__sidebar--right {
    border-left: 1px solid var(--border-default);
    width: 300px;
    min-width: 300px;
}

/* Sidebar Sections */
.sidebar-section {
    background-color: var(--bg-main);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    padding: var(--space-3);
}

.sidebar-section__header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    margin-bottom: var(--space-3);
    font-size: var(--text-sm);
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.sidebar-section__header svg {
    width: 16px;
    height: 16px;
    opacity: 0.7;
}

.sidebar-section__list {
    display: flex;
    flex-direction: column;
    gap: var(--space-1);
}

.sidebar-section__item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2);
    font-size: var(--text-sm);
    color: var(--text-primary);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.sidebar-section__item:hover {
    background-color: var(--bg-elevated);
}

.sidebar-section__item--empty {
    color: var(--text-muted);
    font-style: italic;
    cursor: default;
}

.sidebar-section__item--empty:hover {
    background-color: transparent;
}

.sidebar-section__divider {
    height: 1px;
    background-color: var(--border-muted);
    margin: var(--space-3) 0;
}

/* ========================================
   Zoom Levels
   ======================================== */
.zoom-levels {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.zoom-bar {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-1);
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: background-color var(--transition-fast);
}

.zoom-bar:hover {
    background-color: var(--bg-elevated);
}

.zoom-bar__label {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    font-weight: 500;
    width: 24px;
    color: var(--text-muted);
}

.zoom-bar__progress {
    flex: 1;
    height: 6px;
    background-color: var(--bg-elevated);
    border-radius: var(--radius-sm);
    overflow: hidden;
}

.zoom-bar__fill {
    height: 100%;
    transition: width var(--transition-base);
}

.zoom-bar[data-zoom="0"] .zoom-bar__fill { background-color: var(--memory-z0); }
.zoom-bar[data-zoom="1"] .zoom-bar__fill { background-color: var(--memory-z1); }
.zoom-bar[data-zoom="2"] .zoom-bar__fill { background-color: var(--memory-z2); }
.zoom-bar[data-zoom="3"] .zoom-bar__fill { background-color: var(--memory-z3); }
.zoom-bar[data-zoom="4"] .zoom-bar__fill { background-color: var(--memory-z4); }

.zoom-bar__count {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    color: var(--text-muted);
    width: 28px;
    text-align: right;
}

/* ========================================
   Main Content Area
   ======================================== */
.cortex__main {
    flex: 1;
    display: flex;
    flex-direction: column;
    min-width: 0;
}

/* Header / Toolbar */
.cortex__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: var(--space-4);
    padding: var(--space-2) var(--space-4);
    background-color: var(--bg-panel);
    border-bottom: 1px solid var(--border-default);
    flex-wrap: nowrap;
    flex-shrink: 0;
}

.cortex__nav {
    display: flex;
    gap: var(--space-1);
}

.cortex__nav-item {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    font-size: var(--text-sm);
    font-weight: 500;
    color: var(--text-secondary);
    background: transparent;
    border: none;
    border-radius: var(--radius-sm);
    cursor: pointer;
    transition: all var(--transition-fast);
}

.cortex__nav-item:hover {
    color: var(--text-primary);
    background-color: var(--bg-elevated);
}

.cortex__nav-item--active {
    color: var(--accent-primary);
    background-color: var(--bg-main);
}

.cortex__nav-item svg {
    width: 16px;
    height: 16px;
}

.cortex__actions {
    display: flex;
    align-items: center;
    gap: var(--space-3);
    flex-shrink: 0;
}

/* Search Input */
.search-input {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    padding: var(--space-2) var(--space-3);
    background-color: var(--bg-input);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    width: 200px;
    transition: all var(--transition-fast);
}

.search-input:focus-within {
    border-color: var(--accent-primary);
    width: 280px;
}

.search-input__icon {
    width: 14px;
    height: 14px;
    color: var(--text-muted);
}

.search-input__field {
    flex: 1;
    border: none;
    background: transparent;
    font-size: var(--text-sm);
    color: var(--text-primary);
    outline: none;
}

.search-input__field::placeholder {
    color: var(--text-muted);
}

/* ========================================
   Canvas / Content Area
   ======================================== */
.cortex__canvas {
    flex: 1;
    overflow-y: auto;
    padding: var(--space-4);
}

/* ========================================
   Chat Interface
   ======================================== */
.chat {
    display: flex;
    flex-direction: column;
    height: 100%;
    max-width: 900px;
    margin: 0 auto;
}

.chat__messages {
    flex: 1;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-4);
    padding-bottom: var(--space-4);
}

.chat__empty {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-muted);
    text-align: center;
}

.chat__empty-icon {
    width: 48px;
    height: 48px;
    margin-bottom: var(--space-4);
    opacity: 0.5;
}

.chat__empty-title {
    font-size: var(--text-lg);
    font-weight: 600;
    color: var(--text-secondary);
    margin-bottom: var(--space-2);
}

/* Chat Messages */
.chat-message {
    display: flex;
    flex-direction: column;
    gap: var(--space-2);
}

.chat-message__header {
    display: flex;
    align-items: center;
    gap: var(--space-2);
    font-size: var(--text-sm);
    font-weight: 600;
}

.chat-message--user .chat-message__header {
    color: var(--text-primary);
}

.chat-message--assistant .chat-message__header {
    color: var(--accent-primary);
}

.chat-message__content {
    padding: var(--space-3);
    background-color: var(--bg-panel);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    line-height: 1.6;
}

.chat-message--user .chat-message__content {
    background-color: var(--bg-elevated);
}

.chat-message__content p {
    margin-bottom: var(--space-2);
}

.chat-message__content p:last-child {
    margin-bottom: 0;
}

/* ========================================
   Input Bar
   ======================================== */
.cortex__input {
    padding: var(--space-4);
    background-color: var(--bg-panel);
    border-top: 1px solid var(--border-default);
}

.input-bar {
    display: flex;
    gap: var(--space-2);
    max-width: 900px;
    margin: 0 auto;
}

.input-bar__mode {
    flex-shrink: 0;
}

.input-bar__mode select {
    height: 40px;
    padding: 0 var(--space-3);
    font-family: var(--font-sans);
    font-size: var(--text-sm);
    color: var(--text-primary);
    background-color: var(--bg-input);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    cursor: pointer;
}

.input-bar__field {
    flex: 1;
    height: 40px;
    padding: 0 var(--space-3);
    font-family: var(--font-sans);
    font-size: var(--text-base);
    color: var(--text-primary);
    background-color: var(--bg-input);
    border: 1px solid var(--border-default);
    border-radius: var(--radius-sm);
    transition: border-color var(--transition-fast);
}

.input-bar__field:focus {
    outline: none;
    border-color: var(--accent-primary);
}

.input-bar__field::placeholder {
    color: var(--text-muted);
}

.input-bar__submit {
    flex-shrink: 0;
    height: 40px;
    width: 40px;
    padding: 0;
}

/* ========================================
   Context Panel (Right Sidebar)
   ======================================== */
.context-panel {
    font-size: var(--text-sm);
    color: var(--text-secondary);
}

.context-panel__empty {
    color: var(--text-muted);
    font-style: italic;
}

/* ========================================
   Responsive
   ======================================== */
@media (max-width: 1200px) {
    .cortex__sidebar--right {
        width: 260px;
        min-width: 260px;
    }
}

@media (max-width: 1024px) {
    .cortex__sidebar--right {
        display: none;
    }
}

@media (max-width: 768px) {
    .cortex__sidebar--left {
        display: none;
    }
    
    .search-input {
        width: 150px;
    }
    
    .search-input:focus-within {
        width: 200px;
    }
}