/* =============================================================================
   site.css — LlamaChat application styles
   Requires tokens.css. No styles live in cshtml files.
   ============================================================================= */

@import url('https://fonts.googleapis.com/css2?family=Playfair+Display:ital,wght@0,400;0,600;0,700;1,400&family=DM+Sans:opsz,wght@9..40,300;9..40,400;9..40,500;9..40,600&family=Source+Sans+3:wght@200..900&display=swap');

/* ---------------------------------------------------------------------------
   GLOBAL
--------------------------------------------------------------------------- */

body {
    background-color: var(--color-bg-base);
    font-family: "Source Sans 3", var(--font-sans), sans-serif;
    color: var(--color-ink);
}

/* ---------------------------------------------------------------------------
   NAVBAR
--------------------------------------------------------------------------- */

.app-navbar {
    height: var(--nav-height);
    background-color: var(--color-nav-bg) !important;
    border-bottom: 1px solid var(--color-nav-border);
    box-shadow: var(--shadow-xs);
}

.app-navbar .navbar-brand {
    font-weight: var(--weight-semibold);
    font-size: var(--text-md);
    letter-spacing: var(--tracking-tight);
    color: var(--color-nav-text-active) !important;
}

.app-navbar .navbar-toggler {
    border: none;
    padding: var(--space-2);
    color: var(--color-nav-text);
}

.app-navbar .navbar-toggler:focus {
    box-shadow: none;
}


/* ---------------------------------------------------------------------------
   NAV OFFCANVAS
--------------------------------------------------------------------------- */

.app-offcanvas {
    background-color: var(--color-bg-surface);
    border-left: 1px solid var(--color-border) !important;
    width: 260px !important;
}

.app-offcanvas .offcanvas-header {
    height: var(--nav-height);
    border-bottom: 1px solid var(--color-border);
    padding: 0 var(--space-4);
}

.app-offcanvas .offcanvas-title {
    font-size: var(--text-base);
    font-weight: var(--weight-semibold);
    color: var(--color-ink);
}

.app-offcanvas .btn-close {
    opacity: 0.5;
}

.app-offcanvas .btn-close:hover {
    opacity: 1;
}

.app-offcanvas .offcanvas-body {
    padding: var(--space-3) 0;
}

.app-nav-link {
    display: block;
    color: var(--color-ink-secondary) !important;
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    padding: var(--space-2) var(--space-4) !important;
    border-radius: var(--radius-md);
    margin: 0 var(--space-2);
    transition: background-color var(--duration-base) var(--ease-default),
                color var(--duration-base) var(--ease-default);
}

.app-nav-link:hover {
    background-color: var(--color-bg-subtle);
    color: var(--color-ink) !important;
}

.app-nav-user {
    padding: var(--space-3) var(--space-4);
    border-top: 1px solid var(--color-border);
}

.app-nav-user .user-name {
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-ink);
    margin-bottom: var(--space-3);
}

.app-nav-user .btn {
    font-size: var(--text-sm);
    padding: var(--space-2) var(--space-3);
    border-radius: var(--radius-md);
}

.app-nav-user .btn-outline-secondary {
    color: var(--color-ink-secondary);
    border-color: var(--color-border-strong);
}

.app-nav-user .btn-outline-secondary:hover {
    background-color: var(--color-bg-subtle);
    color: var(--color-ink);
    border-color: var(--color-border-strong);
}

.app-nav-user .btn-signout {
    color: var(--color-danger);
    border-color: var(--color-danger-subtle);
    background-color: var(--color-danger-subtle);
}

.app-nav-user .btn-signout:hover {
    background-color: var(--color-danger);
    color: var(--neutral-0);
    border-color: var(--color-danger);
}


/* ---------------------------------------------------------------------------
   BUTTONS
--------------------------------------------------------------------------- */

/* Primary — medium green (#40916C), distinct from the dark-green navbar */
.btn-primary {
    --bs-btn-color:              var(--neutral-0);
    --bs-btn-bg:                 var(--blue-500);
    --bs-btn-border-color:       var(--blue-500);
    --bs-btn-hover-color:        var(--neutral-0);
    --bs-btn-hover-bg:           var(--blue-600);
    --bs-btn-hover-border-color: var(--blue-600);
    --bs-btn-active-color:       var(--neutral-0);
    --bs-btn-active-bg:          var(--blue-700);
    --bs-btn-active-border-color:var(--blue-700);
    --bs-btn-disabled-color:     var(--neutral-0);
    --bs-btn-disabled-bg:        var(--blue-400);
    --bs-btn-disabled-border-color: var(--blue-400);
    --bs-btn-focus-shadow-rgb:   45, 106, 79;   /* blue-600 RGB for focus ring */
}


/* ---------------------------------------------------------------------------
   CARDS (global — login, stat cards, endpoint cards)
--------------------------------------------------------------------------- */

.card {
    background-color: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-lg);
}

.card-title {
    font-size: var(--text-xl);
    font-weight: var(--weight-bold);
    letter-spacing: var(--tracking-tight);
    color: var(--color-ink);
}


/* ---------------------------------------------------------------------------
   FORMS (global — login, system prompt, KB edit)
--------------------------------------------------------------------------- */

.form-label {
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    color: var(--color-ink-secondary);
    margin-bottom: var(--space-1);
}

.form-control {
    border-color: var(--color-border);
    border-radius: var(--radius-md);
    font-size: var(--text-sm);
    padding: var(--space-2) var(--space-3);
    color: var(--color-ink);
    background-color: var(--color-bg-surface);
}

.form-control:focus {
    border-color: var(--color-border-focus);
    box-shadow: var(--shadow-focus);
}

.form-control::placeholder {
    color: var(--color-ink-muted);
}

.form-check-label {
    font-size: var(--text-sm);
    color: var(--color-ink-secondary);
}


/* ---------------------------------------------------------------------------
   LOGIN PAGE
--------------------------------------------------------------------------- */

.login-card {
    box-shadow: var(--shadow-md);
}

.login-card .card-body {
    padding: var(--space-8);
}


/* ---------------------------------------------------------------------------
   INDEX — CONVERSATIONS LIST
--------------------------------------------------------------------------- */

.list-group {
    box-shadow: var(--shadow-sm);
    border-radius: var(--radius-md);
    overflow: hidden;
}

.list-group-item {
    border-color: var(--color-border);
    background-color: var(--color-bg-surface);
    color: var(--color-ink);
    padding: var(--space-3) var(--space-4);
    font-size: var(--text-base);
}

.list-group-item-action:hover,
.list-group-item-action:focus {
    background-color: var(--color-bg-subtle);
    color: var(--color-ink);
}

.list-group-item .fw-semibold {
    font-weight: var(--weight-semibold);
}

.list-group-item small {
    color: var(--color-ink-secondary);
    font-size: var(--text-xs);
}


/* ---------------------------------------------------------------------------
   CHAT PAGE
--------------------------------------------------------------------------- */

#chat-wrap {
    display: flex;
    flex-direction: column;
    /* dvh shrinks when the mobile keyboard appears, so the messages area
       flexes smaller and the input bar stays anchored at the bottom.
       Subtract nav height + Bootstrap container py-3 top padding (1rem). */
    height: calc(100dvh - var(--nav-height) - var(--space-4));
}

/* Input bar — always flush with the visible bottom on all devices.
   env(safe-area-inset-bottom) adds clearance for the iPhone home indicator;
   falls back to --space-2 on devices without a safe-area. */
#chat-wrap > div:last-child {
    padding-bottom: max(var(--space-2), env(safe-area-inset-bottom, var(--space-2)));
}

#messages {
    overflow-y: auto;
    display: flex;
    flex-direction: column;
    gap: var(--space-3);
    padding: var(--space-4);
    background: var(--color-bg-surface);
    border: 1px solid var(--color-border);
    border-radius: var(--radius-md);
    flex: 1 1 0;
    min-height: 0;
}

.msg-user {
    align-self: flex-end;
    background: var(--color-bubble-user-bg);
    color: var(--color-bubble-user-text);
    border-radius: var(--radius-2xl) var(--radius-2xl) var(--radius-sm) var(--radius-2xl);
    padding: var(--space-2) var(--space-4);
    max-width: 80%;
    white-space: pre-wrap;
    word-break: break-word;
}

.msg-assistant {
    align-self: flex-start;
    background: var(--color-bubble-bot-bg);
    color: var(--color-bubble-bot-text);
    border-radius: var(--radius-2xl) var(--radius-2xl) var(--radius-2xl) var(--radius-sm);
    padding: var(--space-2) var(--space-4);
    max-width: 80%;
    word-break: break-word;
}

.msg-assistant p               { margin: 0 0 var(--space-2); }
.msg-assistant p:last-child    { margin-bottom: 0; }
.msg-assistant ul,
.msg-assistant ol              { margin: 0 0 var(--space-2); padding-left: 1.4rem; }

.msg-assistant pre {
    background: var(--color-bubble-code-bg);
    border-radius: var(--radius-sm);
    padding: var(--space-2) var(--space-3);
    overflow-x: auto;
    margin: var(--space-1) 0;
    font-family: var(--font-mono);
}

.msg-assistant code {
    background: var(--color-bubble-code-bg);
    color: var(--color-bubble-code-text);
    border-radius: var(--radius-sm);
    padding: 0.1rem 0.3rem;
    font-size: 0.875em;
    font-family: var(--font-mono);
}

.msg-assistant pre code { background: none; padding: 0; }

.msg-assistant blockquote {
    border-left: 3px solid var(--color-bubble-blockquote-border);
    margin: var(--space-1) 0;
    padding-left: var(--space-3);
    color: var(--color-bubble-blockquote-text);
}

.btn-tts-msg {
    display: block;
    margin-top: var(--space-1);
    margin-left: auto;
    background: none;
    border: none;
    cursor: pointer;
    font-size: var(--text-xs);
    opacity: 0;
    padding: 0;
    line-height: 1;
    transition: opacity var(--duration-base) var(--ease-default);
}

.msg-assistant:hover .btn-tts-msg,
.msg-user:hover .btn-tts-msg { opacity: 0.5; }
.btn-tts-msg:hover            { opacity: 1 !important; }
.msg-user .btn-tts-msg        { color: var(--color-bubble-user-text); }

.msg-thinking {
    align-self: flex-start;
    color: var(--color-ink-secondary);
    font-style: italic;
    font-size: var(--text-sm);
    padding: var(--space-1) var(--space-2);
}

@keyframes thinking-dot {
    0%, 60%, 100% { opacity: 0.2; transform: translateY(0); }
    30%            { opacity: 1;   transform: translateY(-3px); }
}

.thinking-dot {
    display: inline-block;
    animation: thinking-dot 1.2s infinite;
}

.thinking-dot:nth-child(2) { animation-delay: 0.2s; }
.thinking-dot:nth-child(3) { animation-delay: 0.4s; }


/* ---------------------------------------------------------------------------
   LOGS PAGE
--------------------------------------------------------------------------- */

.log-text {
    font-family: var(--font-mono);
    font-size: var(--text-xs);
    white-space: pre-wrap;
    word-break: break-word;
    max-height: 300px;
    overflow-y: auto;
    background: var(--color-bg-muted);
    border-radius: var(--radius-sm);
    padding: var(--space-1) var(--space-2);
    margin-top: var(--space-1);
}

.badge-llm       { background-color: var(--color-badge-llm); }
.badge-tts       { background-color: var(--color-badge-tts); }
.badge-stt       { background-color: var(--color-badge-stt); }
.badge-embedding { background-color: var(--color-badge-embedding); }
.duration-slow   { color: var(--color-danger); font-weight: var(--weight-semibold); }
.duration-ok     { color: var(--color-success); }


/* ---------------------------------------------------------------------------
   API DOCS PAGE
   Scoped to .api-docs-wrap to avoid colliding with chat's pre styles.
--------------------------------------------------------------------------- */

.endpoint-card {
    margin-bottom: var(--space-8);
}

.method-badge {
    font-size: var(--text-xs);
    font-family: var(--font-mono);
    padding: var(--space-1) var(--space-2);
}

.route {
    font-family: var(--font-mono);
    font-size: var(--text-base);
}

.api-docs-wrap pre {
    background: var(--color-bg-inverse);
    color: var(--color-ink-inverse);
    border-radius: var(--radius-md);
    padding: var(--space-4);
    font-size: var(--text-sm);
    font-family: var(--font-mono);
    overflow-x: auto;
}

.section-title {
    border-bottom: 2px solid var(--color-border);
    padding-bottom: var(--space-1);
    margin-bottom: var(--space-6);
}

.field-table td:first-child {
    font-family: var(--font-mono);
    white-space: nowrap;
}


/* ---------------------------------------------------------------------------
   CARD CHROME (card-header, card-footer — KB/*, Admin/*)
--------------------------------------------------------------------------- */

.card-header {
    background-color: var(--color-bg-muted);
    border-bottom: 1px solid var(--color-border);
    font-size: var(--text-sm);
    font-weight: var(--weight-semibold);
    color: var(--color-ink-secondary);
    padding: var(--space-3) var(--space-4);
}

.card-footer {
    background-color: var(--color-bg-muted);
    border-top: 1px solid var(--color-border);
    font-size: var(--text-sm);
    color: var(--color-ink-secondary);
    padding: var(--space-3) var(--space-4);
}


/* ---------------------------------------------------------------------------
   TABLES (Admin/*, KB/*)
--------------------------------------------------------------------------- */

.table {
    color: var(--color-ink);
    font-size: var(--text-sm);
}

.table thead th {
    color: var(--color-ink-secondary);
    font-size: var(--text-xs);
    font-weight: var(--weight-semibold);
    letter-spacing: var(--tracking-wide);
    text-transform: uppercase;
    border-bottom-color: var(--color-border-strong);
}

.table-light {
    --bs-table-bg: var(--color-bg-muted);
}

.table > :not(caption) > * > * {
    border-bottom-color: var(--color-border);
}

tr.table-danger > td,
tr.table-danger > th {
    background-color: var(--color-danger-subtle);
    color: var(--color-ink);
}


/* ---------------------------------------------------------------------------
   NAV TABS (KB/Eval)
--------------------------------------------------------------------------- */

.nav-tabs {
    border-bottom-color: var(--color-border);
}

.nav-tabs .nav-link {
    color: var(--color-ink-secondary);
    font-size: var(--text-sm);
    font-weight: var(--weight-medium);
    border-color: transparent;
    border-radius: var(--radius-md) var(--radius-md) 0 0;
}

.nav-tabs .nav-link:hover {
    color: var(--color-ink);
    background-color: var(--color-bg-subtle);
    border-color: var(--color-border) var(--color-border) transparent;
}

.nav-tabs .nav-link.active {
    color: var(--color-primary);
    font-weight: var(--weight-semibold);
    background-color: var(--color-bg-surface);
    border-color: var(--color-border) var(--color-border) var(--color-bg-surface);
}


/* ---------------------------------------------------------------------------
   KB EDIT — SECTION ITEMS
--------------------------------------------------------------------------- */

.section-item {
    border: 1px solid var(--color-border) !important;
    border-radius: var(--radius-md) !important;
    padding: var(--space-3) !important;
    margin-bottom: var(--space-3) !important;
    background-color: var(--color-bg-surface);
}


/* ---------------------------------------------------------------------------
   KB TEST — CHUNK RESULTS
--------------------------------------------------------------------------- */

.kb-chunk-text {
    white-space: pre-wrap;
    word-break: break-word;
    font-size: var(--text-sm);
    margin-bottom: 0;
}


/* ---------------------------------------------------------------------------
   KB EVAL — CONTEXT SELECTOR
--------------------------------------------------------------------------- */

.context-selector {
    min-width: 220px;
}


/* ---------------------------------------------------------------------------
   CHAT — SYSTEM PROMPT MODAL
--------------------------------------------------------------------------- */

.system-prompt-input {
    font-family: var(--font-mono);
    font-size: var(--text-sm);
}


/* ---------------------------------------------------------------------------
   LOGS — TRUNCATION COLUMNS
--------------------------------------------------------------------------- */

.log-col-preview {
    max-width: 200px;
}

.log-preview-text {
    max-width: 180px;
}

.log-error-text {
    max-width: 120px;
    display: inline-block;
    vertical-align: middle;
}


/* ---------------------------------------------------------------------------
   API DOCS — PAGE WRAPPER
--------------------------------------------------------------------------- */

.api-docs-wrap {
    max-width: 860px;
    margin: 0 auto;
}


/* =============================================================================
   LlamaChat component classes — llc-* system
   Requires [data-theme] tokens from tokens.css.
   ============================================================================= */

/* ── Typography helpers ──────────────────────────────────────────────────── */
.font-serif  { font-family: 'Playfair Display', serif; }
.txt-muted-2 { color: var(--llc-txt-2) !important; }
.txt-muted-3 { color: var(--llc-txt-3) !important; }

/* ── Scrollbar ───────────────────────────────────────────────────────────── */
::-webkit-scrollbar       { width: 4px; }
::-webkit-scrollbar-track { background: transparent; }
::-webkit-scrollbar-thumb { background: var(--llc-border, #d2cbea); border-radius: 2px; }

/* ── App shell ───────────────────────────────────────────────────────────── */
.llc-shell {
    display: flex;
    height: 100vh;
    background: var(--llc-bg);
    overflow: hidden;
}

/* ── Sidebar ─────────────────────────────────────────────────────────────── */
.llc-sidebar {
    width: 268px;
    min-width: 268px;
    background: var(--llc-sidebar-bg);
    border-right: 1px solid var(--llc-border);
    display: flex;
    flex-direction: column;
    height: 100vh;
}

.llc-logo-mark {
    width: 34px; height: 34px;
    background: var(--llc-purple);
    border-radius: 9px;
    display: flex; align-items: center; justify-content: center;
    flex-shrink: 0;
}
.llc-logo-text {
    font-family: 'Playfair Display', serif;
    font-size: 19px; font-weight: 700;
    color: var(--llc-logo-color);
    letter-spacing: -.01em;
}

.btn-llc-new {
    background: var(--llc-purple);
    color: #fff;
    border: none;
    border-radius: 8px;
    font-family: 'DM Sans', sans-serif;
    font-size: 13.5px; font-weight: 500;
    padding: 9px 13px;
    transition: opacity .15s;
}
.btn-llc-new:hover { opacity: .88; color: #fff; }

.llc-search {
    display: flex; align-items: center; gap: 7px;
    background: var(--llc-surface);
    border: 1.5px solid var(--llc-border);
    border-radius: 8px;
    padding: 7px 11px;
}
.llc-search input {
    border: none; background: none; outline: none;
    font-family: 'DM Sans', sans-serif;
    font-size: 13px; color: var(--llc-txt); width: 100%;
}
.llc-search input::placeholder { color: var(--llc-txt-3); }

.llc-sb-label {
    font-size: 10px; font-weight: 700;
    letter-spacing: .1em; text-transform: uppercase;
    color: var(--llc-txt-3);
    padding: 12px 16px 4px;
}

.llc-ci {
    display: flex; align-items: center; gap: 9px;
    padding: 8px 14px 8px 16px;
    cursor: pointer;
    border-left: 2px solid transparent;
    color: var(--llc-txt);
    text-decoration: none;
    font-size: 13px; font-weight: 500;
    white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
    transition: background .1s;
}
.llc-ci:hover { background: var(--llc-surface-hover); color: var(--llc-txt); }
.llc-ci.active {
    background: var(--llc-surface-active);
    border-left-color: var(--llc-purple);
    color: var(--llc-purple);
}
.llc-ci svg { flex-shrink: 0; opacity: .6; }

.llc-sb-foot {
    padding: 12px 14px;
    border-top: 1px solid var(--llc-border);
}
.llc-avatar {
    width: 34px; height: 34px; border-radius: 50%;
    background: linear-gradient(135deg, var(--llc-purple), var(--llc-blue));
    display: flex; align-items: center; justify-content: center;
    font-size: 12px; font-weight: 700; color: #fff; flex-shrink: 0;
}
.llc-avatar-lg {
    width: 54px; height: 54px; font-size: 18px;
}
.llc-icon-btn {
    width: 30px; height: 30px; border: none; background: none;
    cursor: pointer; color: var(--llc-txt-3); border-radius: 6px;
    display: flex; align-items: center; justify-content: center;
    transition: background .1s, color .1s;
}
.llc-icon-btn:hover { background: var(--llc-surface-active); color: var(--llc-txt); }

/* Sidebar inactive state — non-chat pages */
.sb-inactive {
    opacity: 0.3;
    pointer-events: none;
    user-select: none;
}

/* ── Main content area ───────────────────────────────────────────────────── */
.llc-main {
    flex: 1; display: flex; flex-direction: column; overflow: hidden;
    background: var(--llc-bg);
    min-width: 0;
}

/* Scrollable wrapper for non-chat pages inside the shell */
.llc-page-wrap {
    flex: 1;
    overflow-y: auto;
    padding: 1.5rem;
}

/* ── Chat header ─────────────────────────────────────────────────────────── */
.llc-chat-hdr {
    padding: 14px 28px;
    border-bottom: 1px solid var(--llc-border);
    background: var(--llc-surface);
    flex-shrink: 0;
}
.llc-chat-title {
    font-family: 'Playfair Display', serif;
    font-size: 17px; font-weight: 600; color: var(--llc-txt);
}
.llc-chat-sub { font-size: 11.5px; color: var(--llc-txt-3); margin-top: 2px; }

/* ── Messages scroll area ────────────────────────────────────────────────── */
.llc-msgs { flex: 1; overflow-y: auto; padding: 28px 0 16px; }
.llc-msgs-inner { max-width: 730px; margin: 0 auto; padding: 0 28px; }

/* ── Single message ──────────────────────────────────────────────────────── */
.llc-msg { margin-bottom: 30px; }
.llc-msg-sender {
    width: 28px; height: 28px; border-radius: 50%;
    display: flex; align-items: center; justify-content: center;
    font-size: 11px; font-weight: 700; color: #fff; flex-shrink: 0;
}
.llc-msg-sender.ai  { background: linear-gradient(135deg, var(--llc-purple), var(--llc-blue)); }
.llc-msg-sender.usr { background: var(--llc-txt-2); }
.llc-msg-name  { font-size: 13px; font-weight: 600; color: var(--llc-txt); }
.llc-msg-time  { font-size: 11px; color: var(--llc-txt-3); margin-left: auto; }
.llc-msg-body  { padding-left: 38px; }
.llc-msg-text  { font-size: 14.5px; line-height: 1.72; color: var(--llc-txt); }
.llc-msg-text p { margin-bottom: 9px; }
.llc-msg-text p:last-child { margin-bottom: 0; }

.llc-msg.user-msg .llc-msg-body {
    background: var(--llc-user-bubble);
    border: 1px solid var(--llc-user-border);
    border-radius: 0 12px 12px 12px;
    padding: 12px 16px;
}

/* ── RAG source chips ────────────────────────────────────────────────────── */
.llc-src-label {
    font-size: 10px; font-weight: 700;
    letter-spacing: .09em; text-transform: uppercase;
    color: var(--llc-txt-3); margin-bottom: 6px;
}
.llc-chip {
    display: inline-flex; align-items: center; gap: 5px;
    padding: 4px 10px;
    background: var(--llc-blue-bg);
    color: var(--llc-blue-txt);
    border-radius: 20px;
    font-size: 11px; font-weight: 500;
    border: 1px solid color-mix(in srgb, var(--llc-blue) 18%, transparent);
}

/* ── Typing indicator ────────────────────────────────────────────────────── */
.llc-typing { padding-left: 38px; display: flex; gap: 4px; align-items: center; }
.llc-dot {
    width: 7px; height: 7px; border-radius: 50%;
    background: var(--llc-txt-3);
    animation: llc-bounce 1.2s ease-in-out infinite;
}
.llc-dot:nth-child(2) { animation-delay: .15s; }
.llc-dot:nth-child(3) { animation-delay: .3s; }
@keyframes llc-bounce {
    0%, 80%, 100% { transform: translateY(0); opacity: .5; }
    40%           { transform: translateY(-5px); opacity: 1; }
}

/* ── Input area ──────────────────────────────────────────────────────────── */
.llc-inp-area {
    padding: 14px 28px 20px;
    border-top: 1px solid var(--llc-border);
    background: var(--llc-bg);
    flex-shrink: 0;
}
.llc-inp-inner { max-width: 730px; margin: 0 auto; }
.llc-inp-box {
    display: flex; align-items: flex-end; gap: 10px;
    background: var(--llc-input-bg);
    border: 1.5px solid var(--llc-input-border);
    border-radius: 12px;
    padding: 11px 13px;
    box-shadow: var(--llc-shadow-sm);
    transition: border-color .15s, box-shadow .15s;
}
.llc-inp-box:focus-within {
    border-color: var(--llc-purple);
    box-shadow: 0 0 0 3px var(--llc-focus-ring);
}
.llc-inp-box textarea {
    flex: 1; border: none; background: none; outline: none;
    font-family: 'DM Sans', sans-serif;
    font-size: 14px; color: var(--llc-txt);
    resize: none; min-height: 22px; max-height: 140px; line-height: 1.5;
}
.llc-inp-box textarea::placeholder { color: var(--llc-txt-3); }
.llc-inp-hint { font-size: 11px; color: var(--llc-txt-3); text-align: center; margin-top: 9px; }

.btn-llc-send {
    width: 34px; height: 34px; border-radius: 8px;
    background: var(--llc-purple); border: none;
    cursor: pointer; color: #fff; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
    transition: opacity .15s, transform .1s;
}
.btn-llc-send:hover  { opacity: .88; transform: translateY(-1px); }
.btn-llc-send:disabled { opacity: .35; cursor: default; transform: none; }

/* ── Empty / new chat state ──────────────────────────────────────────────── */
.llc-empty {
    flex: 1; display: flex; flex-direction: column;
    align-items: center; justify-content: center;
    padding: 40px 28px 60px;
}
.llc-empty-hello {
    font-family: 'Playfair Display', serif;
    font-size: 34px; font-weight: 600; color: var(--llc-txt);
    margin-bottom: 8px; text-align: center;
}
.llc-empty-sub {
    font-size: 15px; color: var(--llc-txt-2);
    text-align: center; margin-bottom: 40px;
}
.llc-sugg {
    background: var(--llc-surface);
    border: 1.5px solid var(--llc-border);
    border-radius: 12px; padding: 16px 18px;
    cursor: pointer; text-decoration: none;
    transition: border-color .15s, box-shadow .15s, transform .12s;
    display: block;
}
.llc-sugg:hover {
    border-color: var(--llc-purple);
    box-shadow: var(--llc-shadow-sm);
    transform: translateY(-2px);
}
.llc-sugg-t { font-size: 13px; font-weight: 600; color: var(--llc-txt); margin-bottom: 3px; }
.llc-sugg-d { font-size: 12px; color: var(--llc-txt-2); line-height: 1.4; }

/* ── Login page ──────────────────────────────────────────────────────────── */
.llc-login-bg {
    min-height: 100vh;
    background: var(--llc-bg);
    display: flex; align-items: center; justify-content: center;
    position: relative; overflow: hidden;
}
.llc-login-bg::before {
    content: '';
    position: absolute; inset: 0;
    background:
        radial-gradient(ellipse 80% 60% at 15% 20%, var(--llc-purple-bg), transparent 55%),
        radial-gradient(ellipse 60% 70% at 85% 80%, var(--llc-blue-bg),   transparent 55%);
    opacity: .55;
}
.llc-login-card {
    background: var(--llc-surface);
    border: 1px solid var(--llc-border);
    border-radius: 16px;
    padding: 46px 50px;
    width: 428px;
    position: relative; z-index: 1;
    box-shadow: var(--llc-shadow-lg);
}
.llc-form-label {
    font-size: 11.5px; font-weight: 700;
    letter-spacing: .07em; text-transform: uppercase;
    color: var(--llc-txt-2);
}
.llc-input.form-control {
    background: var(--llc-input-bg);
    border: 1.5px solid var(--llc-input-border);
    border-radius: 8px;
    color: var(--llc-txt);
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    padding: 11px 14px;
}
.llc-input.form-control::placeholder { color: var(--llc-txt-3); }
.llc-input.form-control:focus {
    background: var(--llc-input-bg);
    border-color: var(--llc-purple);
    box-shadow: 0 0 0 3px var(--llc-focus-ring);
    color: var(--llc-txt);
}
.btn-llc-primary {
    background: var(--llc-purple); border: none;
    border-radius: 9px; color: #fff;
    font-family: 'DM Sans', sans-serif;
    font-size: 15px; font-weight: 600;
    padding: 13px; width: 100%;
    letter-spacing: .01em;
    transition: opacity .15s, transform .1s;
}
.btn-llc-primary:hover { opacity: .9; transform: translateY(-1px); color: #fff; }
.llc-link { color: var(--llc-purple); text-decoration: none; font-size: 13px; }
.llc-link:hover { text-decoration: underline; color: var(--llc-purple); }

/* ── Settings offcanvas ──────────────────────────────────────────────────── */
.llc-offcanvas.offcanvas {
    width: 388px !important;
    background: var(--llc-surface);
    border-left: 1px solid var(--llc-border);
    color: var(--llc-txt);
}
.llc-offcanvas .offcanvas-header {
    border-bottom: 1px solid var(--llc-border);
    padding: 22px 26px;
}
.llc-offcanvas .offcanvas-title {
    font-family: 'Playfair Display', serif;
    font-size: 21px; font-weight: 600;
}
.llc-offcanvas .offcanvas-body { padding: 26px; }

.llc-settings-label {
    font-size: 10.5px; font-weight: 700;
    letter-spacing: .1em; text-transform: uppercase;
    color: var(--llc-txt-3); margin-bottom: 14px;
}
.llc-profile-block {
    display: flex; align-items: center; gap: 16px;
    padding: 16px; background: var(--llc-surface-hover);
    border-radius: 12px;
}
.llc-settings-row {
    display: flex; align-items: center; justify-content: space-between;
    padding: 13px 0;
    border-bottom: 1px solid var(--llc-border-light);
}
.llc-settings-row:last-child { border-bottom: none; }
.llc-settings-row-lbl { font-size: 14px; color: var(--llc-txt); }
.llc-settings-row-sub { font-size: 11.5px; color: var(--llc-txt-3); margin-top: 2px; }

.llc-toggle {
    position: relative; display: inline-block; width: 40px; height: 23px;
}
.llc-toggle input { opacity: 0; width: 0; height: 0; }
.llc-toggle-slider {
    position: absolute; inset: 0;
    background: var(--llc-border); border-radius: 12px;
    cursor: pointer; transition: background .2s;
}
.llc-toggle-slider::after {
    content: '';
    position: absolute; top: 3.5px; left: 3px;
    width: 16px; height: 16px; border-radius: 50%;
    background: #fff; transition: transform .2s;
    box-shadow: 0 1px 3px rgba(0,0,0,.2);
}
.llc-toggle input:checked + .llc-toggle-slider { background: var(--llc-purple); }
.llc-toggle input:checked + .llc-toggle-slider::after { transform: translateX(17px); }

.btn-llc-settings {
    width: 100%; padding: 11px 16px;
    border: 1.5px solid var(--llc-border);
    background: none; border-radius: 9px;
    font-family: 'DM Sans', sans-serif; font-size: 14px;
    color: var(--llc-txt); cursor: pointer; text-align: left;
    margin-bottom: 8px; transition: background .1s;
}
.btn-llc-settings:hover { background: var(--llc-surface-hover); }
.btn-llc-settings:last-child { margin-bottom: 0; }
.btn-llc-settings.danger { color: #d94f4f; border-color: rgba(220,80,80,.25); }
.btn-llc-settings.danger:hover { background: rgba(220,80,80,.06); }

/* ── Mobile layout ───────────────────────────────────────────────────────── */
.llc-mobile-bar { display: none; }

@media (max-width: 991.98px) {
    .llc-shell { overflow: hidden; }

    .llc-sidebar {
        position: fixed;
        left: -268px;
        top: 0;
        bottom: 0;
        z-index: 200;
        transition: left 0.25s ease-out;
        box-shadow: none;
    }
    .llc-sidebar.sidebar-open {
        left: 0;
        box-shadow: 4px 0 24px rgba(0,0,0,.18);
    }

    .llc-sidebar-backdrop {
        display: none;
        position: fixed;
        inset: 0;
        background: rgba(0,0,0,.4);
        z-index: 199;
    }
    .llc-sidebar-backdrop.active { display: block; }

    .llc-mobile-bar {
        display: flex;
        align-items: center;
        gap: 12px;
        padding: 12px 16px;
        background: var(--llc-surface);
        border-bottom: 1px solid var(--llc-border);
        flex-shrink: 0;
    }

    .llc-main { min-width: 0; }
}

@media (min-width: 992px) {
    .llc-sidebar-backdrop { display: none !important; }
}