:root {
    --bg-color: #0f172a;
    --surface-color: #1e293b;
    --surface-border: #334155;
    --text-primary: #f8fafc;
    --text-secondary: #94a3b8;
    --accent-color: #38bdf8;
    --accent-hover: #0ea5e9;
    --accent-glow: rgba(56, 189, 248, 0.15);
    --success-color: #10b981;
    --warning-color: #f59e0b;
    --error-color: #ef4444;
    --user-bubble: #2563eb;
    --assistant-bubble: #1e293b;
    --tool-card-bg: #090d16;
    --font-sans: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
    --font-mono: 'JetBrains Mono', monospace;
}

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

body {
    font-family: var(--font-sans);
    background-color: var(--bg-color);
    color: var(--text-primary);
    line-height: 1.5;
    height: 100vh;
    display: flex;
    flex-direction: column;
    overflow: hidden;
}

#root {
    height: 100%;
    display: flex;
    flex-direction: column;
}

.app-container {
    display: flex;
    flex-direction: column;
    height: 100vh;
    max-width: 1200px;
    margin: 0 auto;
    width: 100%;
    padding: 16px;
    gap: 16px;
}

/* Header & Auth Section */
.app-header {
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    border-radius: 12px;
    padding: 16px 20px;
    display: flex;
    flex-direction: column;
    gap: 14px;
}

.header-top {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.logo-group {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-badge {
    background: linear-gradient(135deg, #38bdf8, #2563eb);
    color: white;
    font-weight: 700;
    font-size: 14px;
    padding: 4px 10px;
    border-radius: 6px;
    letter-spacing: 0.5px;
}

.app-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.connection-status {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 13px;
    font-weight: 500;
    padding: 4px 12px;
    border-radius: 20px;
    background: rgba(148, 163, 184, 0.1);
    color: var(--text-secondary);
}

.status-dot {
    width: 8px;
    height: 8px;
    border-radius: 50%;
    background-color: var(--text-secondary);
}

.status-connected .status-dot {
    background-color: var(--success-color);
    box-shadow: 0 0 8px var(--success-color);
}
.status-connected {
    color: #34d399;
    background: rgba(16, 185, 129, 0.1);
}

.status-connecting .status-dot {
    background-color: var(--warning-color);
}
.status-connecting {
    color: #fbbf24;
    background: rgba(245, 158, 11, 0.1);
}

/* Header Actions */
.header-actions {
    display: flex;
    align-items: center;
    gap: 12px;
}

/* Auth Bar Controls */
.auth-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    align-items: center;
    justify-content: space-between;
    padding-top: 10px;
    border-top: 1px solid var(--surface-border);
}

/* Workflow Status Banner */
.workflow-status-card {
    flex: 1;
    min-width: 320px;
}

.status-banner {
    border-radius: 8px;
    padding: 10px 14px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    border: 1px solid var(--surface-border);
}

.status-banner.unverified {
    background: rgba(56, 189, 248, 0.06);
    border-color: rgba(56, 189, 248, 0.25);
}

.status-banner.verified {
    background: rgba(16, 185, 129, 0.08);
    border-color: rgba(16, 185, 129, 0.35);
}

.banner-title {
    display: flex;
    align-items: center;
    gap: 8px;
    font-size: 14px;
    color: var(--text-primary);
}

.banner-desc {
    font-size: 12px;
    color: var(--text-secondary);
}

.quick-fill-chips {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    margin-top: 4px;
}

.chips-label {
    font-size: 11px;
    text-transform: uppercase;
    font-weight: 600;
    color: var(--text-secondary);
    letter-spacing: 0.5px;
}

.chip-btn {
    background: #0f172a;
    border: 1px solid var(--surface-border);
    color: var(--text-primary);
    font-size: 12px;
    padding: 4px 10px;
    border-radius: 16px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.chip-btn:hover {
    border-color: var(--accent-color);
    background: rgba(56, 189, 248, 0.15);
    color: var(--accent-color);
}

.preset-label {
    font-size: 13px;
    color: var(--text-secondary);
    font-weight: 500;
}

.preset-btn {
    background: #0f172a;
    border: 1px solid var(--surface-border);
    color: var(--text-primary);
    font-size: 13px;
    padding: 6px 12px;
    border-radius: 6px;
    cursor: pointer;
    transition: all 0.2s ease;
    font-family: inherit;
}

.preset-btn:hover {
    border-color: var(--accent-color);
    background: var(--surface-color);
}

.preset-btn.active {
    background: var(--accent-color);
    color: #0f172a;
    border-color: var(--accent-color);
    font-weight: 600;
}

.input-field {
    background: #0f172a;
    border: 1px solid var(--surface-border);
    color: var(--text-primary);
    padding: 6px 12px;
    border-radius: 6px;
    font-size: 13px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s ease;
}

.input-field:focus {
    border-color: var(--accent-color);
}

.gemini-key-container {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-left: auto;
}

/* Tool Badges */
.tools-bar {
    display: flex;
    align-items: center;
    gap: 8px;
    flex-wrap: wrap;
    padding: 8px 12px;
    background: #0f172a;
    border-radius: 8px;
    font-size: 12px;
}

.tools-title {
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    font-size: 11px;
    letter-spacing: 0.5px;
}

.tool-badge {
    background: rgba(56, 189, 248, 0.15);
    border: 1px solid rgba(56, 189, 248, 0.3);
    color: #7dd3fc;
    padding: 2px 8px;
    border-radius: 4px;
    font-family: var(--font-mono);
    font-size: 12px;
}

/* Chat Main Layout */
.chat-main {
    flex: 1;
    display: flex;
    flex-direction: column;
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    border-radius: 12px;
    overflow: hidden;
    position: relative;
}

.chat-thread {
    flex: 1;
    overflow-y: auto;
    padding: 20px;
    display: flex;
    flex-direction: column;
    gap: 16px;
}

.empty-chat {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    height: 100%;
    color: var(--text-secondary);
    text-align: center;
    gap: 12px;
}

.empty-title {
    font-size: 18px;
    font-weight: 600;
    color: var(--text-primary);
}

.empty-suggestions {
    display: flex;
    flex-direction: column;
    gap: 8px;
    max-width: 480px;
    margin-top: 12px;
}

.suggestion-card {
    background: #0f172a;
    border: 1px solid var(--surface-border);
    border-radius: 8px;
    padding: 10px 14px;
    text-align: left;
    cursor: pointer;
    transition: all 0.2s ease;
    font-size: 13px;
    color: var(--text-primary);
}

.suggestion-card:hover {
    border-color: var(--accent-color);
    transform: translateY(-1px);
}

/* Messages */
.message-row {
    display: flex;
    flex-direction: column;
    gap: 6px;
}

.message-user {
    align-self: flex-end;
    max-width: 80%;
}

.message-assistant {
    align-self: flex-start;
    max-width: 85%;
}

.message-author {
    font-size: 11px;
    color: var(--text-secondary);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

.message-bubble {
    padding: 12px 16px;
    border-radius: 12px;
    font-size: 14px;
    line-height: 1.6;
    word-break: break-word;
    white-space: pre-wrap;
}

.message-user .message-bubble {
    background: var(--user-bubble);
    color: white;
    border-bottom-right-radius: 2px;
}

.message-assistant .message-bubble {
    background: #0f172a;
    border: 1px solid var(--surface-border);
    color: var(--text-primary);
    border-bottom-left-radius: 2px;
}

/* Tool Execution Card */
.tool-call-card {
    background: var(--tool-card-bg);
    border: 1px solid #334155;
    border-left: 4px solid var(--accent-color);
    border-radius: 8px;
    padding: 12px;
    margin: 6px 0;
    font-size: 13px;
    display: flex;
    flex-direction: column;
    gap: 8px;
}

.tool-call-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.tool-name-tag {
    display: flex;
    align-items: center;
    gap: 6px;
    font-family: var(--font-mono);
    color: var(--accent-color);
    font-weight: 600;
}

.tool-status-badge {
    font-size: 11px;
    font-weight: 600;
    padding: 2px 6px;
    border-radius: 4px;
    text-transform: uppercase;
}

.tool-status-running {
    background: rgba(245, 158, 11, 0.2);
    color: #fbbf24;
}

.tool-status-success {
    background: rgba(16, 185, 129, 0.2);
    color: #34d399;
}

.tool-status-error {
    background: rgba(239, 68, 68, 0.2);
    color: #f87171;
}

.tool-code-block {
    background: #000000;
    border: 1px solid #1e293b;
    border-radius: 6px;
    padding: 8px 12px;
    font-family: var(--font-mono);
    font-size: 12px;
    color: #cbd5e1;
    overflow-x: auto;
    max-height: 200px;
}

/* Chat Input Bar */
.chat-input-bar {
    padding: 16px;
    background: #0f172a;
    border-top: 1px solid var(--surface-border);
    display: flex;
    gap: 12px;
    align-items: center;
}

.chat-input {
    flex: 1;
    background: var(--surface-color);
    border: 1px solid var(--surface-border);
    color: var(--text-primary);
    padding: 12px 16px;
    border-radius: 8px;
    font-size: 14px;
    font-family: inherit;
    outline: none;
    transition: border-color 0.2s ease;
}

.chat-input:focus {
    border-color: var(--accent-color);
}

.send-btn {
    background: var(--accent-color);
    color: #0f172a;
    font-weight: 600;
    padding: 12px 20px;
    border: none;
    border-radius: 8px;
    cursor: pointer;
    font-size: 14px;
    font-family: inherit;
    transition: all 0.2s ease;
}

.send-btn:hover:not(:disabled) {
    background: var(--accent-hover);
    transform: translateY(-1px);
}

.send-btn:disabled {
    opacity: 0.5;
    cursor: not-allowed;
}

.clear-btn {
    background: transparent;
    border: 1px solid var(--surface-border);
    color: var(--text-secondary);
    padding: 12px 16px;
    border-radius: 8px;
    cursor: pointer;
    font-size: 13px;
    font-family: inherit;
    transition: all 0.2s ease;
}

.clear-btn:hover {
    color: var(--text-primary);
    border-color: var(--text-secondary);
}