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

:root {
  --black: #0c0c0c;
  --white: #fafafa;
  --gray-50: #f7f7f6;
  --gray-100: #eeeeed;
  --gray-200: #dddcdb;
  --gray-400: #a8a7a5;
  --gray-600: #6b6a68;
  --gray-800: #2e2d2b;
  --border: #e2e1df;
  --font-display: 'Cormorant Garamond', Georgia, serif;
  --font-ui: 'Figtree', system-ui, sans-serif;
  --font-mono: 'JetBrains Mono', monospace;
}

html, body { height: 100%; background: var(--white); color: var(--black); font-family: var(--font-ui); font-size: 15px; line-height: 1.6; -webkit-font-smoothing: antialiased; }

.page { display: none; min-height: 100vh; }
.page.active { display: flex; flex-direction: column; }

/* -- LOGO -- */
.logo-mark { display: inline-flex; align-items: center; gap: 10px; text-decoration: none; cursor: pointer; }
.logo-mark svg { display: block; }
.logo-text { font-family: var(--font-ui); font-weight: 600; font-size: 15px; letter-spacing: -0.02em; color: var(--black); }

/* -- NAV -- */
nav { display: flex; align-items: center; justify-content: space-between; padding: 20px 40px; border-bottom: 1px solid var(--border); background: var(--white); position: sticky; top: 0; z-index: 100; }
nav .nav-links { display: flex; align-items: center; gap: 32px; }
nav a, nav button.nav-link { font-family: var(--font-ui); font-size: 13.5px; font-weight: 400; color: var(--gray-600); text-decoration: none; background: none; border: none; cursor: pointer; transition: color 0.15s; letter-spacing: 0.01em; padding: 0; }
nav a:hover, nav button.nav-link:hover { color: var(--black); }
nav button.nav-link.active-link { color: var(--black); font-weight: 500; }

.btn { display: inline-flex; align-items: center; justify-content: center; gap: 6px; padding: 9px 20px; font-family: var(--font-ui); font-size: 13.5px; font-weight: 500; border-radius: 6px; cursor: pointer; transition: all 0.15s; border: none; text-decoration: none; }
.btn-primary { background: var(--black); color: var(--white); }
.btn-primary:hover { background: var(--gray-800); }
.btn-ghost { background: transparent; color: var(--gray-600); border: 1px solid var(--border); }
.btn-ghost:hover { border-color: var(--gray-400); color: var(--black); }

@keyframes fadeUp { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

/* ===================================
   LOGIN
=================================== */
#page-login { align-items: center; justify-content: center; background: var(--gray-50); }
.login-card { background: var(--white); border: 1px solid var(--border); border-radius: 12px; padding: 52px 48px; width: 100%; max-width: 400px; animation: fadeUp 0.4s ease both; }
.login-logo { display: flex; justify-content: center; margin-bottom: 36px; }
.login-tagline { text-align: center; font-family: var(--font-display); font-size: 22px; font-weight: 300; color: var(--gray-800); margin-bottom: 32px; line-height: 1.4; font-style: italic; }
.form-group { margin-bottom: 18px; }
.form-group label { display: block; font-size: 12px; font-weight: 500; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gray-600); margin-bottom: 8px; }
.form-group input { width: 100%; padding: 10px 14px; border: 1px solid var(--border); border-radius: 6px; font-family: var(--font-ui); font-size: 14px; color: var(--black); background: var(--white); outline: none; transition: border-color 0.15s; }
.form-group input:focus { border-color: var(--gray-600); }
.form-group input::placeholder { color: var(--gray-400); }
.login-footer { text-align: center; margin-top: 18px; }
.login-footer a { font-size: 12.5px; color: var(--gray-400); text-decoration: none; }
.login-footer a:hover { color: var(--gray-800); }
.login-btn { width: 100%; padding: 11px; margin-top: 8px; font-size: 14px; }
.login-error { color: #c0392b; font-size: 12.5px; text-align: center; margin-top: 12px; display: none; }

/* ===================================
   LANDING
=================================== */
#page-landing { background: var(--white); }
.content-wrap { max-width: 1100px; margin: 0 auto; padding: 0 40px; width: 100%; }
.hero { padding: 68px 0 52px; border-bottom: 1px solid var(--border); }
.hero-eyebrow { font-size: 11px; font-weight: 500; letter-spacing: 0.14em; text-transform: uppercase; color: var(--gray-400); margin-bottom: 14px; }
.hero h1 { font-family: var(--font-display); font-size: 50px; font-weight: 300; line-height: 1.15; color: var(--black); letter-spacing: -0.01em; max-width: 520px; }
.hero h1 em { font-style: italic; color: var(--gray-600); }

.products-section { padding: 48px 0; border-bottom: 1px solid var(--border); }
.products-section:last-child { border-bottom: none; padding-bottom: 64px; }
.section-header { display: flex; align-items: baseline; gap: 12px; margin-bottom: 28px; }
.section-title { font-size: 11px; font-weight: 600; letter-spacing: 0.12em; text-transform: uppercase; color: var(--black); }
.section-badge { font-size: 10.5px; padding: 2px 9px; border-radius: 20px; font-weight: 500; letter-spacing: 0.03em; }
.badge-live { background: #eaf4ef; color: #2a6e47; border: 1px solid #c5e4d3; }
.badge-poc  { background: #fef5e7; color: #966218; border: 1px solid #f0ddb0; }

.product-grid { display: grid; grid-template-columns: repeat(3, 1fr); gap: 14px; }
@media (max-width: 860px) { .product-grid { grid-template-columns: repeat(2,1fr); } }
@media (max-width: 580px) { .product-grid { grid-template-columns: 1fr; } }

.product-card { border: 1px solid var(--border); border-radius: 10px; padding: 26px 26px 22px; background: var(--white); transition: border-color 0.15s, box-shadow 0.15s; cursor: pointer; position: relative; overflow: hidden; }
.product-card:hover { border-color: var(--gray-400); box-shadow: 0 3px 16px rgba(0,0,0,0.05); }
.product-card::after { content: ''; position: absolute; top: 0; left: 0; right: 0; height: 2px; background: var(--black); transform: scaleX(0); transform-origin: left; transition: transform 0.22s ease; }
.product-card:hover::after { transform: scaleX(1); }
.product-icon { width: 34px; height: 34px; background: var(--gray-100); border-radius: 7px; display: flex; align-items: center; justify-content: center; margin-bottom: 14px; }
.product-name { font-size: 14px; font-weight: 600; color: var(--black); margin-bottom: 5px; letter-spacing: -0.01em; }
.product-desc { font-size: 12.5px; color: var(--gray-600); line-height: 1.55; margin-bottom: 18px; }
.product-link { font-size: 12px; font-weight: 500; color: var(--black); text-decoration: none; display: inline-flex; align-items: center; gap: 4px; border-bottom: 1px solid var(--black); padding-bottom: 1px; transition: color 0.15s, border-color 0.15s; }
.product-link:hover { color: var(--gray-600); border-color: var(--gray-600); }

/* MCP badge on POC cards */
.mcp-chip { display: inline-flex; align-items: center; gap: 5px; font-size: 10px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; padding: 2px 8px; border-radius: 4px; margin-bottom: 12px; background: var(--gray-100); color: var(--gray-600); border: 1px solid var(--border); }

/* ===================================
   MCP PAGE
=================================== */
#page-mcp { flex-direction: column; }
#page-mcp.active { min-height: 100vh; }

.mcp-context-bar {
  border-bottom: 1px solid var(--border);
  background: var(--white);
  display: flex;
  align-items: stretch;
  position: sticky;
  top: 61px;
  z-index: 90;
  padding-left: 240px;
}
.mcp-tab {
  display: flex; align-items: center; gap: 8px;
  padding: 0 24px; height: 44px;
  font-family: var(--font-ui); font-size: 12.5px; font-weight: 500;
  color: var(--gray-600);
  background: none; border: none; border-bottom: 2px solid transparent;
  cursor: pointer; transition: color 0.15s, border-color 0.15s;
  white-space: nowrap; margin-bottom: -1px;
}
.mcp-tab:hover { color: var(--black); }
.mcp-tab.active { color: var(--black); border-bottom-color: var(--black); }
.mcp-tab-dot { width: 6px; height: 6px; border-radius: 50%; background: var(--gray-200); flex-shrink: 0; transition: background 0.15s; }
.mcp-tab.active .mcp-tab-dot { background: var(--black); }

/* Layout */
.mcp-layout { display: flex; flex: 1; overflow: hidden; height: calc(100vh - 61px - 44px); }

/* Sidebar */
.mcp-sidebar { width: 240px; min-width: 240px; border-right: 1px solid var(--border); display: flex; flex-direction: column; background: var(--gray-50); overflow: hidden; }
.sidebar-header { padding: 18px 16px 14px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; }
.sidebar-title { font-size: 11px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gray-600); }
.sidebar-new-btn { width: 24px; height: 24px; display: flex; align-items: center; justify-content: center; background: none; border: 1px solid var(--border); border-radius: 5px; cursor: pointer; color: var(--gray-600); font-size: 16px; transition: all 0.15s; line-height: 1; padding-bottom: 1px; }
.sidebar-new-btn:hover { background: var(--white); color: var(--black); border-color: var(--gray-400); }
.saved-queries { flex: 1; overflow-y: auto; padding: 10px 8px; }
.saved-queries::-webkit-scrollbar { width: 3px; }
.saved-queries::-webkit-scrollbar-thumb { background: var(--gray-200); border-radius: 2px; }
.query-item { padding: 9px 10px; border-radius: 7px; cursor: pointer; transition: background 0.12s; margin-bottom: 2px; display: flex; align-items: center; justify-content: space-between; }
.query-item:hover { background: var(--white); }
.query-item.selected { background: var(--white); box-shadow: 0 1px 4px rgba(0,0,0,0.05); }
.query-item-content { flex: 1; min-width: 0; }
.query-item-title { font-size: 12.5px; font-weight: 500; color: var(--black); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: 2px; }
.query-item-meta { font-size: 10.5px; color: var(--gray-400); font-family: var(--font-mono); }
.query-item-delete { display: none; background: none; border: none; cursor: pointer; color: var(--gray-400); padding: 2px 4px; font-size: 14px; line-height: 1; border-radius: 3px; flex-shrink: 0; }
.query-item:hover .query-item-delete { display: block; }
.query-item-delete:hover { color: #c0392b; background: var(--gray-100); }
.sidebar-empty { padding: 28px 14px; text-align: center; color: var(--gray-400); font-size: 12px; line-height: 1.7; }
.sidebar-ctx-label { padding: 12px 10px 6px; font-size: 10px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gray-400); }

/* Main */
.mcp-main { flex: 1; display: flex; flex-direction: column; overflow: hidden; }
.mcp-topbar { padding: 14px 28px; border-bottom: 1px solid var(--border); display: flex; align-items: center; justify-content: space-between; gap: 16px; }
.mcp-query-name input { border: none; outline: none; background: transparent; font-family: var(--font-ui); font-size: 13.5px; font-weight: 500; color: var(--black); width: 340px; }
.mcp-query-name input::placeholder { color: var(--gray-400); }

.mcp-response-area { flex: 1; overflow-y: auto; padding: 28px 32px; }
.mcp-response-area::-webkit-scrollbar { width: 4px; }
.mcp-response-area::-webkit-scrollbar-thumb { background: var(--gray-200); border-radius: 2px; }

.response-empty { display: flex; flex-direction: column; align-items: center; justify-content: center; height: 100%; text-align: center; color: var(--gray-400); gap: 12px; }
.response-empty p { font-size: 13px; max-width: 260px; line-height: 1.65; }

.user-bubble { margin-bottom: 22px; display: flex; flex-direction: column; align-items: flex-end; }
.user-bubble .bubble-text { background: var(--black); color: var(--white); border-radius: 10px 10px 2px 10px; padding: 11px 16px; font-size: 13.5px; line-height: 1.6; max-width: 68%; }
.user-bubble .bubble-meta { font-size: 10.5px; color: var(--gray-400); margin-top: 5px; font-family: var(--font-mono); }
.assistant-block { margin-bottom: 22px; animation: fadeUp 0.2s ease; }
.response-label { font-size: 10px; font-weight: 600; letter-spacing: 0.1em; text-transform: uppercase; color: var(--gray-400); margin-bottom: 8px; font-family: var(--font-ui); }
.response-block { background: var(--gray-50); border: 1px solid var(--border); border-radius: 10px; padding: 20px 24px; font-family: var(--font-mono); font-size: 12.5px; line-height: 1.8; color: var(--gray-800); white-space: pre-wrap; word-break: break-word; }

/* Tool calls */
.tool-block { margin-bottom: 12px; }
.tool-header { font-size: 10px; font-weight: 600; letter-spacing: 0.08em; text-transform: uppercase; color: var(--gray-400); margin-bottom: 6px; display: flex; align-items: center; gap: 6px; }
.tool-detail { background: var(--white); border: 1px solid var(--border); border-radius: 8px; padding: 14px 18px; font-family: var(--font-mono); font-size: 11.5px; line-height: 1.7; color: var(--gray-600); white-space: pre-wrap; word-break: break-word; margin-bottom: 8px; }

/* Loading indicator */
.typing-indicator { display: flex; align-items: center; gap: 4px; padding: 14px 0; }
.typing-indicator span { width: 6px; height: 6px; background: var(--gray-400); border-radius: 50%; animation: typingBounce 1.2s ease-in-out infinite; }
.typing-indicator span:nth-child(2) { animation-delay: 0.15s; }
.typing-indicator span:nth-child(3) { animation-delay: 0.3s; }
@keyframes typingBounce { 0%, 80%, 100% { transform: scale(0.6); opacity: 0.4; } 40% { transform: scale(1); opacity: 1; } }

/* Input */
.mcp-input-area { padding: 18px 28px; border-top: 1px solid var(--border); background: var(--white); }
.mcp-input-row { display: flex; align-items: flex-end; gap: 10px; border: 1px solid var(--border); border-radius: 10px; padding: 9px 12px; background: var(--white); transition: border-color 0.15s; }
.mcp-input-row:focus-within { border-color: var(--gray-600); }
.mcp-textarea { flex: 1; border: none; outline: none; resize: none; font-family: var(--font-ui); font-size: 13.5px; line-height: 1.6; color: var(--black); background: transparent; max-height: 140px; min-height: 22px; overflow-y: auto; }
.mcp-textarea::placeholder { color: var(--gray-400); }
.mcp-send-btn { width: 32px; height: 32px; border-radius: 7px; background: var(--black); color: var(--white); border: none; cursor: pointer; display: flex; align-items: center; justify-content: center; flex-shrink: 0; transition: background 0.15s; }
.mcp-send-btn:hover { background: var(--gray-800); }
.mcp-send-btn:disabled { background: var(--gray-200); cursor: not-allowed; }
.mcp-input-hint { font-size: 11px; color: var(--gray-400); margin-top: 7px; padding: 0 2px; }
kbd { background: var(--gray-100); border: 1px solid var(--border); border-radius: 3px; padding: 1px 5px; font-size: 10px; font-family: var(--font-mono); }