/* ============================================================
   AŞAMA 2a — SIDEBAR (Legatus AI ivory/ink revizyonu)
   ------------------------------------------------------------
   01-tokens.css'ten SONRA include et. Mevcut .sidebar*
   class'larının görünümünü override eder; HTML değişmiyor.
   ============================================================ */

/* Container */
.sidebar {
    width: var(--sidebar-width);
    background: var(--sidebar-bg);
    border-right: 1px solid var(--border);
    padding: 16px 12px 12px;
    gap: 0;
}

/* Brand row */
.sidebar-header {
    margin-bottom: 14px;
    padding: 0 4px;
}

.sidebar-brand {
    gap: 8px;
    font-family: var(--font-serif);
    font-size: 17px;
    font-weight: 600;
    letter-spacing: -0.015em;
    color: var(--text-primary);
    white-space: nowrap;
    overflow: hidden;
}

.sidebar-brand svg {
    color: var(--accent);
    width: 18px;
    height: 18px;
}

/* Theme toggle button — small, square-ish, parchment */
.theme-toggle-btn {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
}
.theme-toggle-btn:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
    border-color: var(--border);
}
.theme-toggle-btn .theme-icon-svg {
    width: 13px;
    height: 13px;
}

.sidebar-username {
    font-size: 12px;
    color: var(--text-secondary);
    max-width: 90px;
}

.sidebar-logout-btn {
    width: 28px;
    height: 28px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--border);
    background: transparent;
    color: var(--text-secondary);
    cursor: pointer;
    font-size: 13px;
}
.sidebar-logout-btn:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}

/* Primary CTA — ink button on ivory */
.sidebar-new-chat-btn {
    gap: 7px;
    padding: 10px 14px;
    background: var(--text-primary);   /* deep ink */
    color: var(--bg-secondary);         /* ivory */
    border: 1px solid var(--text-primary);
    border-radius: var(--radius-md);
    font-family: var(--font-sans);
    font-size: 13px;
    font-weight: 500;
    letter-spacing: 0.01em;
    margin-bottom: 12px;
    transition: background 0.15s, transform 0.08s;
}
.sidebar-new-chat-btn:hover {
    background: #2a2722;
    border-color: #2a2722;
}
[data-theme="light"] .sidebar-new-chat-btn:hover {
    background: #2a2722;
}

/* Admin link */
.sidebar-admin-link {
    gap: 7px;
    padding: 8px 12px;
    background: transparent;
    color: var(--accent);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    font-size: 12px;
    font-weight: 500;
    margin-bottom: 10px;
}
.sidebar-admin-link:hover {
    background: var(--hover-bg);
    color: var(--accent-hover);
}

/* Mode/provider selectors — flatter, less prominent */
.selector-row {
    gap: 6px;
    margin-bottom: 10px;
}
.mode-selector label {
    font-size: 10px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 4px;
}
.mode-selector select {
    padding: 7px 10px;
    background: var(--bg-tertiary);
    color: var(--text-primary);
    border: 1px solid var(--border);
    border-radius: var(--radius-sm);
    font-size: 12px;
    font-family: var(--font-sans);
}
.mode-selector select:focus {
    border-color: var(--accent);
    outline: none;
}

/* Upload area */
.upload-section { margin-bottom: 12px; }
.upload-section > label {
    display: block;
    font-size: 10px;
    font-weight: 600;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    margin-bottom: 6px;
}
.upload-area {
    border: 1px dashed var(--border);
    border-radius: var(--radius-md);
    padding: 14px 10px;
    color: var(--text-secondary);
    font-size: 12px;
    transition: background 0.15s, border-color 0.15s;
}
.upload-area:hover {
    background: var(--hover-bg);
    border-color: var(--accent);
    color: var(--text-primary);
}

/* Chat history */
.chat-history-section {
    margin-top: 4px;
    margin-bottom: 8px;
    padding-top: 10px;
    border-top: 1px solid var(--border);
}
.chat-history-label {
    display: flex;
    align-items: center;
    gap: 5px;
    font-size: 10px;
    font-weight: 700;
    color: var(--text-secondary);
    text-transform: uppercase;
    letter-spacing: 0.08em;
    padding: 4px 8px 6px;
}
.chat-history-list {
    display: flex;
    flex-direction: column;
    gap: 1px;
    max-height: 160px;
    overflow-y: auto;
}
.chat-history-item {
    padding: 7px 8px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 13px;
    cursor: pointer;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}
.chat-history-item:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}
.chat-history-item.active {
    background: var(--hover-bg);
    color: var(--text-primary);
}
.no-chats {
    padding: 8px;
    font-size: 12px;
    color: var(--text-secondary);
    font-style: italic;
}

/* Nav groups — minimal lines, no left-border accent (Harvey-style) */
.sidebar-nav { gap: 2px; }

.sidebar-nav-group + .sidebar-nav-group {
    margin-top: 6px;
    padding-top: 6px;
    border-top: 1px solid var(--border);
}

.sidebar-nav-toggle {
    padding: 6px 8px 4px;
    color: var(--text-secondary);
    font-size: 10px;
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.08em;
    opacity: 0.7;
}
.sidebar-nav-toggle:hover { opacity: 1; }

.sidebar-nav-item {
    gap: 9px;
    padding: 7px 8px;
    border-radius: var(--radius-sm);
    color: var(--text-secondary);
    font-size: 13px;
    font-family: var(--font-sans);
    border-left: none;                /* Harvey: no left accent */
    transition: background 0.12s, color 0.12s;
}
.sidebar-nav-item:hover {
    background: var(--hover-bg);
    color: var(--text-primary);
}
.sidebar-nav-item.active {
    background: var(--hover-bg);
    color: var(--text-primary);
    border-left: none;
    font-weight: 500;
}
.sidebar-nav-item svg {
    width: 14px;
    height: 14px;
    opacity: 0.7;
}
.sidebar-nav-item:hover svg,
.sidebar-nav-item.active svg {
    opacity: 1;
    color: var(--accent);
}

.sidebar-nav-divider {
    border-top: 1px solid var(--border);
    margin: 6px 0;
}

/* Footer */
.sidebar-footer {
    padding: 8px 8px 4px;
    color: var(--text-secondary);
    font-size: 10px;
    opacity: 0.6;
    border-top: 1px solid var(--border);
    margin-top: auto;
}
.sidebar-footer p { margin: 0; }
.sidebar-footer .version {
    font-size: 9px;
    margin-top: 1px;
    opacity: 0.7;
}

/* Usage widget mini-bars */
.usage-stats-widget {
    background: var(--bg-tertiary);
    border: 1px solid var(--border);
    border-radius: var(--radius-md);
    padding: 8px 10px;
    margin-bottom: 10px;
}
.usage-stat-row {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 11px;
    color: var(--text-secondary);
    margin-bottom: 4px;
}
.usage-stat-row:last-child { margin-bottom: 0; }
.usage-mini-bar-wrap {
    flex: 1;
    height: 4px;
    background: var(--border);
    border-radius: 2px;
    overflow: hidden;
}
.usage-mini-bar {
    height: 100%;
    background: var(--accent);
    border-radius: 2px;
    transition: width 0.3s;
}
.usage-pct {
    font-variant-numeric: tabular-nums;
    color: var(--text-primary);
}