/* ═══════════════════════════════════════════════════════════
   LLM Chat – scoped styles (prefixed with llm- to avoid conflicts)
   ═══════════════════════════════════════════════════════════ */

@import url('https://fonts.googleapis.com/css2?family=JetBrains+Mono:wght@400;500&family=DM+Sans:wght@400;500;600;700&display=swap');

.llm-chat {
    --llm-bg-primary: #0a0a0f;
    --llm-bg-secondary: #12121a;
    --llm-bg-chat: #0e0e16;
    --llm-bg-user: #1a1a2e;
    --llm-bg-assistant: #0f0f1a;
    --llm-bg-input: #16162a;
    --llm-border: #1e1e3a;
    --llm-border-focus: #4a4ae0;
    --llm-text-primary: #e4e4f0;
    --llm-text-secondary: #8888a8;
    --llm-text-dim: #555570;
    --llm-accent: #6c6cf0;
    --llm-accent-glow: rgba(108, 108, 240, 0.15);
    --llm-danger: #e05050;
    --llm-success: #40c080;
    --llm-code-bg: #0c0c18;
    --llm-scrollbar: #222240;

    display: flex;
    flex-direction: column;
    height: calc(100vh - 3.5rem); /* account for Blazor top-row */
    background: var(--llm-bg-primary);
    color: var(--llm-text-primary);
    font-family: 'DM Sans', sans-serif;
    margin: -1.5rem -1.5rem 0; /* counteract .content px-4 padding */
    overflow: hidden;
}

/* Header */
.llm-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-bottom: 1px solid var(--llm-border);
    background: var(--llm-bg-secondary);
    flex-shrink: 0;
}

.llm-header-left {
    display: flex;
    align-items: center;
    gap: 12px;
}

.llm-header-logo {
    width: 32px; height: 32px;
    border-radius: 8px;
    background: linear-gradient(135deg, var(--llm-accent), #9060f0);
    display: flex; align-items: center; justify-content: center;
    font-weight: 700; font-size: 14px; color: #fff;
}

.llm-title {
    font-size: 16px;
    font-weight: 600;
    letter-spacing: -0.02em;
    margin: 0;
    color: var(--llm-text-primary);
}

.llm-header-status {
    display: flex; align-items: center; gap: 8px;
    font-size: 12px; color: var(--llm-text-secondary);
}

.llm-status-dot {
    width: 8px; height: 8px; border-radius: 50%;
    background: var(--llm-text-dim);
    transition: background 0.3s;
}
.llm-status-dot.connected { background: var(--llm-success); box-shadow: 0 0 6px rgba(64, 192, 128, 0.5); }
.llm-status-dot.error { background: var(--llm-danger); }

.llm-header-actions {
    display: flex; gap: 8px;
}

.llm-btn-icon {
    background: transparent; border: 1px solid var(--llm-border);
    color: var(--llm-text-secondary); border-radius: 8px;
    width: 36px; height: 36px; cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.15s;
    font-size: 16px;
}
.llm-btn-icon:hover { background: var(--llm-bg-input); color: var(--llm-text-primary); border-color: var(--llm-border-focus); }
.llm-btn-icon.active { background: var(--llm-accent); color: #fff; border-color: var(--llm-accent); }

/* Chat area */
.llm-chat-container {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 4px;
    scroll-behavior: smooth;
    background: var(--llm-bg-primary);
}

.llm-chat-container::-webkit-scrollbar { width: 6px; }
.llm-chat-container::-webkit-scrollbar-track { background: transparent; }
.llm-chat-container::-webkit-scrollbar-thumb { background: var(--llm-scrollbar); border-radius: 3px; }

.llm-welcome {
    text-align: center;
    margin: auto;
    padding: 40px;
    opacity: 0.6;
}
.llm-welcome h2 { font-size: 22px; font-weight: 600; margin-bottom: 8px; color: var(--llm-text-primary); }
.llm-welcome p { font-size: 14px; color: var(--llm-text-secondary); }

/* Messages */
.llm-message {
    padding: 16px 20px;
    border-radius: 12px;
    font-size: 14.5px;
    line-height: 1.7;
    animation: llm-fadeIn 0.2s ease;
    max-width: 100%;
    word-wrap: break-word;
}

@keyframes llm-fadeIn { from { opacity: 0; transform: translateY(6px); } to { opacity: 1; transform: translateY(0); } }

.llm-message.user {
    background: var(--llm-bg-user);
    border: 1px solid var(--llm-border);
    margin-left: 48px;
}

.llm-message.assistant {
    background: transparent;
    padding-left: 20px;
    border-left: 2px solid var(--llm-accent);
}

.llm-message-label {
    font-size: 11px;
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.06em;
    color: var(--llm-text-dim);
    margin-bottom: 6px;
}
.llm-message.assistant .llm-message-label { color: var(--llm-accent); }

.llm-message-content { white-space: pre-wrap; }

/* Thinking blocks */
.llm-thinking-block {
    margin: 8px 0;
    border: 1px solid var(--llm-border);
    border-radius: 8px;
    overflow: hidden;
}
.llm-thinking-toggle {
    display: flex; align-items: center; gap: 8px;
    padding: 8px 12px;
    background: var(--llm-code-bg);
    cursor: pointer;
    font-size: 12px; color: var(--llm-text-secondary);
    border: none; width: 100%; text-align: left;
    font-family: 'DM Sans', sans-serif;
}
.llm-thinking-toggle:hover { color: var(--llm-text-primary); }
.llm-thinking-toggle .arrow { transition: transform 0.2s; font-size: 10px; }
.llm-thinking-toggle .arrow.open { transform: rotate(90deg); }
.llm-thinking-content {
    display: none;
    padding: 12px;
    font-size: 13px;
    color: var(--llm-text-secondary);
    background: var(--llm-code-bg);
    line-height: 1.6;
    white-space: pre-wrap;
    max-height: 400px;
    overflow-y: auto;
}
.llm-thinking-content.open { display: block; }

/* Code blocks */
.llm-message-content pre {
    background: var(--llm-code-bg);
    border: 1px solid var(--llm-border);
    border-radius: 8px;
    padding: 14px 16px;
    margin: 10px 0;
    overflow-x: auto;
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
    line-height: 1.5;
}

.llm-message-content code {
    font-family: 'JetBrains Mono', monospace;
    font-size: 13px;
}

.llm-message-content :not(pre) > code {
    background: var(--llm-code-bg);
    padding: 2px 6px;
    border-radius: 4px;
    border: 1px solid var(--llm-border);
}

.llm-typing-indicator {
    display: inline-flex; gap: 4px; padding: 4px 0;
}
.llm-typing-indicator span {
    width: 6px; height: 6px; border-radius: 50%;
    background: var(--llm-accent); opacity: 0.4;
    animation: llm-blink 1.2s ease infinite;
}
.llm-typing-indicator span:nth-child(2) { animation-delay: 0.2s; }
.llm-typing-indicator span:nth-child(3) { animation-delay: 0.4s; }
@keyframes llm-blink { 0%, 60%, 100% { opacity: 0.4; } 30% { opacity: 1; } }

/* Settings panel */
.llm-settings-overlay {
    display: none;
    position: fixed; top: 0; left: 0; right: 0; bottom: 0;
    background: rgba(0,0,0,0.5);
    z-index: 100;
}
.llm-settings-overlay.open { display: block; }

.llm-settings-panel {
    position: fixed; top: 0; right: -420px; bottom: 0;
    width: 400px; max-width: 90vw;
    background: var(--llm-bg-secondary);
    border-left: 1px solid var(--llm-border);
    z-index: 101;
    transition: right 0.25s ease;
    display: flex; flex-direction: column;
    overflow: hidden;
}
.llm-settings-panel.open { right: 0; }

.llm-settings-header {
    display: flex; align-items: center; justify-content: space-between;
    padding: 16px 20px;
    border-bottom: 1px solid var(--llm-border);
    flex-shrink: 0;
}
.llm-settings-header h2 { font-size: 15px; font-weight: 600; color: var(--llm-text-primary); margin: 0; }

.llm-settings-body {
    flex: 1;
    overflow-y: auto;
    padding: 16px 20px;
}
.llm-settings-body::-webkit-scrollbar { width: 5px; }
.llm-settings-body::-webkit-scrollbar-thumb { background: var(--llm-scrollbar); border-radius: 3px; }

.llm-settings-footer {
    padding: 12px 20px;
    border-top: 1px solid var(--llm-border);
    display: flex; gap: 8px; justify-content: flex-end;
    flex-shrink: 0;
}

.llm-s-section { margin-bottom: 20px; }
.llm-s-section-title {
    font-size: 11px; font-weight: 600;
    text-transform: uppercase; letter-spacing: 0.08em;
    color: var(--llm-accent); margin-bottom: 10px;
    padding-bottom: 6px;
    border-bottom: 1px solid var(--llm-border);
}

.llm-s-row {
    display: flex; align-items: center; justify-content: space-between;
    margin-bottom: 8px;
}
.llm-s-row label {
    font-size: 12.5px; color: var(--llm-text-secondary);
    flex-shrink: 0; min-width: 130px;
}
.llm-s-row label .llm-s-hint {
    font-size: 10px; color: var(--llm-text-dim); display: block;
    margin-top: 1px;
}

.llm-s-row input[type="number"],
.llm-s-row select {
    background: var(--llm-bg-input);
    border: 1px solid var(--llm-border);
    color: var(--llm-text-primary);
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    padding: 5px 8px;
    border-radius: 6px;
    width: 100px;
    text-align: right;
}
.llm-s-row input[type="number"]:focus,
.llm-s-row select:focus {
    outline: none;
    border-color: var(--llm-border-focus);
    box-shadow: 0 0 0 2px var(--llm-accent-glow);
}

.llm-text-input {
    width: 100%;
    font-family: 'JetBrains Mono', monospace;
    font-size: 12px;
    background: var(--llm-bg-input);
    border: 1px solid var(--llm-border);
    color: var(--llm-text-primary);
    padding: 5px 8px;
    border-radius: 6px;
}

.llm-full { flex-direction: column; align-items: stretch; gap: 6px; }
.llm-full label { min-width: unset; }

.llm-btn-sm {
    padding: 6px 16px;
    border-radius: 6px;
    font-size: 12px; font-weight: 500;
    cursor: pointer;
    border: 1px solid var(--llm-border);
    font-family: 'DM Sans', sans-serif;
}
.llm-ghost { background: transparent; color: var(--llm-text-secondary); }
.llm-ghost:hover { color: var(--llm-text-primary); background: var(--llm-bg-input); }

.llm-preset-bar {
    display: flex; gap: 6px; flex-wrap: wrap; margin-bottom: 16px;
}
.llm-preset-btn {
    padding: 4px 10px;
    border-radius: 4px;
    font-size: 11px; font-weight: 500;
    cursor: pointer;
    border: 1px solid var(--llm-border);
    background: var(--llm-bg-input);
    color: var(--llm-text-secondary);
    font-family: 'DM Sans', sans-serif;
    transition: all 0.15s;
}
.llm-preset-btn:hover { color: var(--llm-text-primary); border-color: var(--llm-accent); }

/* Input area */
.llm-input-area {
    padding: 16px 24px 20px;
    border-top: 1px solid var(--llm-border);
    background: var(--llm-bg-secondary);
    flex-shrink: 0;
}

.llm-system-prompt-area {
    display: none;
    margin-bottom: 12px;
}
.llm-system-prompt-area.open { display: block; }
.llm-system-prompt-area textarea {
    width: 100%;
    background: var(--llm-bg-input);
    border: 1px solid var(--llm-border);
    color: var(--llm-text-primary);
    font-family: 'DM Sans', sans-serif;
    font-size: 13px;
    padding: 10px 14px;
    border-radius: 8px;
    resize: vertical;
    outline: none;
    min-height: 60px;
}
.llm-system-prompt-area textarea:focus { border-color: var(--llm-border-focus); }
.llm-system-prompt-area label { font-size: 11px; color: var(--llm-text-dim); margin-bottom: 4px; display: block; }

.llm-input-row {
    display: flex;
    gap: 10px;
    align-items: flex-end;
}

.llm-input-wrapper {
    flex: 1;
    background: var(--llm-bg-input);
    border: 1px solid var(--llm-border);
    border-radius: 12px;
    transition: border-color 0.2s;
    display: flex;
    align-items: flex-end;
}
.llm-input-wrapper:focus-within { border-color: var(--llm-border-focus); box-shadow: 0 0 0 3px var(--llm-accent-glow); }

.llm-input-wrapper textarea {
    flex: 1;
    background: transparent;
    border: none;
    color: var(--llm-text-primary);
    font-family: 'DM Sans', sans-serif;
    font-size: 14px;
    padding: 12px 16px;
    resize: none;
    outline: none;
    max-height: 160px;
    line-height: 1.5;
}
.llm-input-wrapper textarea::placeholder { color: var(--llm-text-dim); }

.llm-btn-send {
    background: var(--llm-accent);
    border: none;
    color: #fff;
    width: 44px; height: 44px;
    border-radius: 12px;
    cursor: pointer;
    display: flex; align-items: center; justify-content: center;
    transition: all 0.15s;
    flex-shrink: 0;
}
.llm-btn-send:hover { background: #5555e0; transform: scale(1.04); }
.llm-btn-send:disabled { opacity: 0.3; cursor: not-allowed; transform: none; }

.llm-input-footer {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-top: 8px;
    font-size: 11px;
    color: var(--llm-text-dim);
}