@import url('https://fonts.googleapis.com/css2?family=Space+Grotesk:wght@300;400;500;600;700&family=Inter:wght@300;400;500;600&display=swap');

/* ============================================
   RESET + BASE
   ============================================ */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', sans-serif;
  background: #ffffff;
  color: #0a0a0a;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font-family: inherit;
  cursor: pointer;
  border: none;
  background: none;
}

textarea,
input {
  font-family: inherit;
}

/* ============================================
   SCROLLBAR (global)
   ============================================ */
::-webkit-scrollbar {
  width: 3px;
}
::-webkit-scrollbar-track {
  background: #ffffff;
}
::-webkit-scrollbar-thumb {
  background: #e0e0e0;
}
::-webkit-scrollbar-thumb:hover {
  background: #999999;
}

/* ============================================
   NAVBAR (shared, all pages)
   ============================================ */
.navbar {
  height: 64px;
  border-bottom: 1px solid #e0e0e0;
  position: sticky;
  top: 0;
  background: #ffffff;
  z-index: 100;
  padding: 0 48px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  flex-shrink: 0;
}

.logo {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 20px;
  color: #0a0a0a;
  letter-spacing: -0.01em;
}

.nav-links {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav-link {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #0a0a0a;
  padding-bottom: 4px;
  border-bottom: 2px solid transparent;
}

.nav-link:hover {
  color: #999999;
}

.nav-link.active {
  border-bottom: 2px solid #0a0a0a;
}

/* Navbar right section (auth) */
.nav-right {
  display: flex;
  align-items: center;
  gap: 12px;
}

.nav-signin {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  color: #0a0a0a;
  cursor: pointer;
}

.nav-signin:hover {
  color: #999999;
}

.nav-user {
  display: flex;
  align-items: center;
  gap: 8px;
}

.nav-avatar {
  width: 20px;
  height: 20px;
  background: #0a0a0a;
  color: #ffffff;
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
}

.nav-username {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  color: #0a0a0a;
}

.nav-signout {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  color: #999999;
  cursor: pointer;
}

.nav-signout:hover {
  color: #0a0a0a;
}

/* Hamburger (mobile) */
.hamburger {
  display: none;
  width: 24px;
  height: 20px;
  flex-direction: column;
  justify-content: space-between;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 0;
}

.hamburger span {
  display: block;
  height: 2px;
  width: 100%;
  background: #0a0a0a;
}

/* Mobile menu overlay */
.mobile-menu {
  display: none;
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  background: #0a0a0a;
  z-index: 200;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 32px;
}

.mobile-menu.open {
  display: flex;
}

.mobile-menu a {
  font-family: 'Inter', sans-serif;
  font-size: 24px;
  color: #ffffff;
  text-align: center;
}

.mobile-menu a:hover {
  color: #999999;
}

.mobile-menu-close {
  position: absolute;
  top: 24px;
  right: 24px;
  width: 28px;
  height: 28px;
  color: #ffffff;
  font-size: 32px;
  line-height: 1;
  background: transparent;
  border: none;
  cursor: pointer;
  font-family: 'Inter', sans-serif;
}

/* ============================================
   FOOTER (shared, all pages)
   ============================================ */
.footer {
  border-top: 1px solid #e0e0e0;
  padding: 40px 48px;
  background: #ffffff;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
}

.footer-left {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 16px;
  color: #0a0a0a;
}

.footer-center {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  color: #999999;
}

.footer-center a {
  color: #999999;
}

.footer-center a:hover {
  color: #0a0a0a;
}

.footer-right {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  color: #999999;
}

/* ============================================
   HOMEPAGE — HERO
   ============================================ */
.hero {
  padding: 120px 48px 100px;
  border-bottom: 1px solid #e0e0e0;
}

.eyebrow {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.2em;
  color: #999999;
  margin-bottom: 36px;
}

.hero-title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: clamp(80px, 12vw, 160px);
  letter-spacing: -0.04em;
  line-height: 0.88;
  color: #0a0a0a;
}

.hero-title .dot {
  color: #999999;
}

.hero-sub {
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  font-size: 17px;
  color: #999999;
  max-width: 440px;
  line-height: 1.7;
  margin-top: 52px;
}

/* Hero buttons */
.hero-buttons {
  display: flex;
  gap: 12px;
  margin-top: 40px;
}

.hero-btn-primary {
  background: #0a0a0a;
  color: #ffffff;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 14px 32px;
  border: none;
  display: inline-block;
}

.hero-btn-primary:hover {
  background: #ffffff;
  color: #0a0a0a;
}

.hero-btn-secondary {
  background: #ffffff;
  color: #0a0a0a;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 14px 32px;
  border: 1px solid #0a0a0a;
  display: inline-block;
}

.hero-btn-secondary:hover {
  background: #0a0a0a;
  color: #ffffff;
  border-color: #0a0a0a;
}

/* ============================================
   HOMEPAGE — TOOL STRIPS
   ============================================ */
.tool-strip {
  display: flex;
  justify-content: space-between;
  align-items: center;
  border-bottom: 1px solid #e0e0e0;
  padding: 44px 48px;
  text-decoration: none;
  color: #0a0a0a;
}

.tool-strip:hover {
  background: #0a0a0a;
}

.tool-strip:hover .strip-name {
  color: #ffffff;
}

.tool-strip:hover .strip-num,
.tool-strip:hover .strip-desc,
.tool-strip:hover .strip-arrow {
  color: #666666;
}

.strip-left {
  display: flex;
  align-items: baseline;
  gap: 40px;
}

.strip-num {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  letter-spacing: 0.12em;
  color: #999999;
}

.strip-name {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: clamp(40px, 6vw, 80px);
  letter-spacing: -0.03em;
  color: #0a0a0a;
}

.strip-right {
  display: flex;
  gap: 80px;
  align-items: center;
}

.strip-desc {
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  color: #999999;
  max-width: 240px;
  line-height: 1.5;
}

.strip-arrow {
  font-size: 26px;
  color: #0a0a0a;
  line-height: 1;
}

/* ============================================
   HOMEPAGE — USE CASES SECTION
   ============================================ */
.use-cases-title-area {
  padding: 80px 48px 48px;
}

.use-cases-label {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: #999999;
  margin-bottom: 24px;
}

.use-cases-heading {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 44px;
  color: #0a0a0a;
  letter-spacing: -0.02em;
}

.use-cases-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  padding: 0 48px 80px;
  gap: 0;
}

.use-case-card {
  border: 1px solid #e0e0e0;
  padding: 32px;
  background: #ffffff;
}

.use-case-card:hover {
  background: #0a0a0a;
  border-color: #0a0a0a;
}

.use-case-card:hover .use-case-tag {
  color: #666666;
}

.use-case-card:hover .use-case-title {
  color: #ffffff;
}

.use-case-card:hover .use-case-desc {
  color: #888888;
}

.use-case-tag {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: #999999;
  margin-bottom: 12px;
}

.use-case-title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 18px;
  color: #0a0a0a;
}

.use-case-desc {
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  color: #999999;
  line-height: 1.6;
  margin-top: 8px;
}

/* ============================================
   HOMEPAGE — SOCIAL PROOF / QUOTES
   ============================================ */
.social-proof {
  border-top: 1px solid #e0e0e0;
  border-bottom: 1px solid #e0e0e0;
  padding: 80px 48px;
}

.social-proof-label {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: #999999;
  margin-bottom: 48px;
}

.quotes-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
}

.quote-card {
  padding: 0 48px;
  border-right: 1px solid #e0e0e0;
}

.quote-card:first-child {
  padding-left: 0;
}

.quote-card:last-child {
  border-right: none;
  padding-right: 0;
}

.quote-mark {
  font-family: 'Space Grotesk', sans-serif;
  font-size: 64px;
  color: #e0e0e0;
  line-height: 0;
  display: block;
  margin-bottom: 24px;
}

.quote-text {
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  font-size: 17px;
  color: #0a0a0a;
  line-height: 1.7;
}

.quote-attribution {
  margin-top: 24px;
}

.quote-name {
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 13px;
  color: #0a0a0a;
}

.quote-role {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  color: #999999;
  margin-top: 4px;
}

/* ============================================
   HOMEPAGE — CTA SECTION
   ============================================ */
.cta-section {
  background: #0a0a0a;
  padding: 100px 48px;
  text-align: center;
}

.cta-heading {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: clamp(48px, 6vw, 80px);
  color: #ffffff;
  letter-spacing: -0.03em;
}

.cta-sub {
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  font-size: 16px;
  color: rgba(255, 255, 255, 0.5);
  margin-top: 16px;
}

.cta-btn {
  display: inline-block;
  background: #ffffff;
  color: #0a0a0a;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  padding: 16px 40px;
  border: none;
  margin-top: 40px;
}

.cta-btn:hover {
  background: #e0e0e0;
}

/* ============================================
   HOMEPAGE — ABOUT STRIP (kept for reference, hidden in new design)
   ============================================ */
.about-strip {
  padding: 80px 48px;
  border-bottom: 1px solid #e0e0e0;
  display: flex;
  gap: 48px;
}

.about-left {
  flex: 1;
}

.about-label {
  font-family: 'Inter', sans-serif;
  font-size: 11px;
  text-transform: uppercase;
  color: #999999;
  letter-spacing: 0.15em;
  margin-bottom: 24px;
}

.about-title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 44px;
  color: #0a0a0a;
  letter-spacing: -0.02em;
  line-height: 1.05;
}

.about-right {
  flex: 1;
  display: flex;
  align-items: center;
}

.about-right p {
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  font-size: 15px;
  color: #999999;
  line-height: 1.75;
}

/* ============================================
   HOMEPAGE — STAT STRIP
   ============================================ */
.stat-strip {
  border-top: 1px solid #e0e0e0;
  border-bottom: 1px solid #e0e0e0;
  display: flex;
}

.stat-block {
  flex: 1;
  padding: 48px;
  border-right: 1px solid #e0e0e0;
}

.stat-block:last-child {
  border-right: none;
}

.stat-num {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 52px;
  color: #0a0a0a;
  letter-spacing: -0.02em;
  line-height: 1;
  margin-bottom: 16px;
}

.stat-label {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  text-transform: uppercase;
  color: #999999;
  letter-spacing: 0.12em;
}

/* ============================================
   CHAT PAGES — LAYOUT
   ============================================ */
.chat-body {
  height: 100vh;
  display: flex;
  flex-direction: column;
  overflow: hidden;
}

.chat-page {
  flex: 1;
  display: flex;
  flex-direction: column;
  min-height: 0;
}

/* Chat header */
.chat-header {
  height: 56px;
  border-bottom: 1px solid #e0e0e0;
  padding: 0 48px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-shrink: 0;
}

.tool-label {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 22px;
  color: #0a0a0a;
  letter-spacing: -0.01em;
}

.clear-btn {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #999999;
  background: transparent;
  border: none;
  cursor: pointer;
  padding: 4px 0;
}

.clear-btn:hover {
  color: #0a0a0a;
}

/* Chat messages area */
.chat-messages {
  flex: 1;
  overflow-y: auto;
  padding: 48px;
  display: flex;
  flex-direction: column;
  gap: 28px;
  background: #ffffff;
  min-height: 0;
}

/* Empty state */
.empty-state {
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
}

.empty-title {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 64px;
  color: #0a0a0a;
  letter-spacing: -0.03em;
  line-height: 1;
}

.empty-title .dot {
  color: #999999;
}

.empty-subtitle {
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  font-size: 15px;
  color: #999999;
  margin-top: 8px;
}

.quick-prompts {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  justify-content: center;
  margin-top: 36px;
}

.chip {
  padding: 11px 20px;
  border: 1px solid #e0e0e0;
  background: #ffffff;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  color: #0a0a0a;
  cursor: pointer;
}

.chip:hover {
  background: #0a0a0a;
  color: #ffffff;
  border-color: #0a0a0a;
}

/* ============================================
   CHAT — MESSAGE BUBBLES
   ============================================ */
.message {
  display: flex;
  flex-direction: column;
  max-width: 680px;
}

.message.user {
  align-self: flex-end;
  align-items: flex-end;
}

.message.ai {
  align-self: flex-start;
  align-items: flex-start;
}

.message-label {
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: #999999;
  margin-bottom: 8px;
}

.message-bubble {
  padding: 16px 22px;
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  line-height: 1.65;
  max-width: 680px;
  word-wrap: break-word;
  overflow-wrap: break-word;
}

.message.user .message-bubble {
  background: #0a0a0a;
  color: #ffffff;
}

.message.ai .message-bubble {
  background: #f5f5f5;
  color: #0a0a0a;
  border: 1px solid #e0e0e0;
}

/* Thinking message */
.message.thinking {
  align-self: flex-start;
  align-items: flex-start;
}

.message.thinking .message-bubble {
  background: transparent;
  border: none;
  padding: 0;
  font-style: italic;
  font-size: 14px;
  color: #999999;
}

/* Inline code */
.message-bubble code {
  font-family: 'Space Grotesk', monospace;
  font-size: 13px;
  background: #ececec;
  padding: 2px 6px;
  border: 1px solid #e0e0e0;
}

.message.user .message-bubble code {
  background: #1a1a1a;
  border-color: #333333;
  color: #ffffff;
}

/* Code blocks */
.message-bubble pre {
  background: #f0f0f0;
  border: 1px solid #e0e0e0;
  padding: 16px 20px;
  font-family: 'Space Grotesk', monospace;
  font-size: 13px;
  line-height: 1.6;
  overflow-x: auto;
  display: block;
  margin-top: 10px;
  margin-bottom: 10px;
}

.message-bubble pre code {
  background: transparent;
  border: none;
  padding: 0;
  font-size: inherit;
  color: #0a0a0a;
  white-space: pre;
}

/* Strong / bold */
.message-bubble strong {
  font-weight: 600;
}

/* Italic */
.message-bubble em {
  font-style: italic;
}

/* Markdown headers (rendered as bold, sized by class) */
.message-bubble .md-h1 {
  font-size: 17px;
  display: block;
  margin-top: 12px;
  margin-bottom: 4px;
}
.message-bubble .md-h2 {
  font-size: 15px;
  display: block;
  margin-top: 10px;
  margin-bottom: 4px;
}
.message-bubble .md-h3 {
  font-size: 14px;
  display: block;
  margin-top: 8px;
  margin-bottom: 2px;
}

/* Bullet point marker */
.message-bubble .md-bullet {
  font-size: 13px;
  color: #999999;
  user-select: none;
}

.message.user .message-bubble .md-bullet {
  color: #888888;
}

/* Code block wrapper — wraps <pre> with optional lang label */
.message-bubble .code-block {
  margin-top: 10px;
  margin-bottom: 10px;
  border: 1px solid #e0e0e0;
}

.message-bubble .code-lang {
  display: block;
  padding: 5px 20px;
  font-family: 'Inter', sans-serif;
  font-size: 10px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: #999999;
  background: #e8e8e8;
  border-bottom: 1px solid #e0e0e0;
}

.message-bubble .code-block pre {
  margin: 0;
  border: none;
}

/* ============================================
   CHAT INPUT AREA
   ============================================ */
.chat-input {
  border-top: 1px solid #e0e0e0;
  padding: 20px 48px;
  background: #ffffff;
  display: flex;
  gap: 12px;
  align-items: flex-end;
  flex-shrink: 0;
}

.chat-input textarea {
  flex: 1;
  resize: none;
  border: 1px solid #e0e0e0;
  padding: 14px 18px;
  font-family: 'Inter', sans-serif;
  font-size: 15px;
  color: #0a0a0a;
  background: #ffffff;
  min-height: 52px;
  max-height: 160px;
  line-height: 1.5;
  outline: none;
}

.chat-input textarea::placeholder {
  color: #999999;
}

.chat-input textarea:focus {
  border-color: #0a0a0a;
}

.send-btn {
  height: 52px;
  padding: 0 32px;
  background: #0a0a0a;
  color: #ffffff;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: none;
  cursor: pointer;
}

.send-btn:hover:not(:disabled) {
  background: #333333;
}

.send-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* ============================================
   AUTH PAGE
   ============================================ */
.auth-body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  background: #ffffff;
}

.auth-container {
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 48px;
}

.auth-box {
  width: 100%;
  max-width: 400px;
  padding: 48px 40px;
  border: 1px solid #e0e0e0;
}

.auth-heading {
  font-family: 'Space Grotesk', sans-serif;
  font-weight: 700;
  font-size: 44px;
  color: #0a0a0a;
  letter-spacing: -0.03em;
}

.auth-heading .dot {
  color: #999999;
}

.auth-sub {
  font-family: 'Inter', sans-serif;
  font-weight: 300;
  font-size: 15px;
  color: #999999;
  margin-top: 12px;
}

.auth-error {
  display: none;
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  color: #0a0a0a;
  background: #f5f5f5;
  border: 1px solid #e0e0e0;
  padding: 12px 16px;
  margin-top: 24px;
}

.auth-google-btn {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  width: 100%;
  padding: 14px;
  border: 1px solid #e0e0e0;
  background: #ffffff;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  font-weight: 500;
  color: #0a0a0a;
  cursor: pointer;
  margin-top: 32px;
}

.auth-google-btn:hover {
  background: #0a0a0a;
  color: #ffffff;
  border-color: #0a0a0a;
}

.auth-divider {
  display: flex;
  align-items: center;
  gap: 16px;
  margin-top: 28px;
}

.auth-divider-line {
  flex: 1;
  height: 1px;
  background: #e0e0e0;
}

.auth-divider-text {
  font-family: 'Inter', sans-serif;
  font-size: 12px;
  color: #999999;
  text-transform: uppercase;
  letter-spacing: 0.1em;
}

.auth-form {
  display: flex;
  flex-direction: column;
  gap: 12px;
  margin-top: 28px;
}

.auth-input {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid #e0e0e0;
  background: #ffffff;
  font-family: 'Inter', sans-serif;
  font-size: 14px;
  color: #0a0a0a;
  outline: none;
}

.auth-input::placeholder {
  color: #999999;
}

.auth-input:focus {
  border-color: #0a0a0a;
}

.auth-submit-btn {
  width: 100%;
  padding: 14px;
  background: #0a0a0a;
  color: #ffffff;
  font-family: 'Inter', sans-serif;
  font-weight: 500;
  font-size: 13px;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  border: none;
  cursor: pointer;
}

.auth-submit-btn:hover:not(:disabled) {
  background: #333333;
}

.auth-submit-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

.auth-toggle {
  font-family: 'Inter', sans-serif;
  font-size: 13px;
  color: #999999;
  margin-top: 20px;
  text-align: center;
}

.auth-toggle-btn {
  color: #0a0a0a;
  font-weight: 500;
  cursor: pointer;
  background: none;
  border: none;
  font-family: inherit;
  font-size: inherit;
}

.auth-toggle-btn:hover {
  color: #999999;
}

/* ============================================
   MOBILE RESPONSIVE (<=768px)
   ============================================ */
@media (max-width: 768px) {
  /* Navbar */
  .navbar {
    padding: 0 20px;
  }
  .nav-links {
    display: none;
  }
  .hamburger {
    display: flex;
  }
  .nav-right {
    display: none;
  }

  /* Footer */
  .footer {
    padding: 24px 20px;
    flex-direction: column;
    gap: 16px;
    text-align: center;
  }
  .footer-center {
    order: 3;
  }

  /* Hero */
  .hero {
    padding: 72px 20px 56px;
  }
  .hero-title {
    font-size: clamp(56px, 14vw, 96px);
  }
  .hero-sub {
    font-size: 15px;
    margin-top: 32px;
  }
  .hero-buttons {
    flex-direction: column;
    gap: 8px;
  }
  .hero-btn-primary,
  .hero-btn-secondary {
    text-align: center;
  }

  /* Tool strips */
  .tool-strip {
    padding: 24px 20px;
  }
  .strip-right {
    gap: 16px;
  }
  .strip-desc {
    display: none;
  }
  .strip-name {
    font-size: clamp(32px, 9vw, 48px);
  }
  .strip-left {
    gap: 20px;
  }

  /* Use cases grid */
  .use-cases-title-area {
    padding: 56px 20px 32px;
  }
  .use-cases-heading {
    font-size: 32px;
  }
  .use-cases-grid {
    grid-template-columns: 1fr;
    padding: 0 20px 56px;
  }

  /* Social proof */
  .social-proof {
    padding: 56px 20px;
  }
  .quotes-grid {
    grid-template-columns: 1fr;
    gap: 40px;
  }
  .quote-card {
    padding: 0;
    border-right: none;
    border-bottom: 1px solid #e0e0e0;
    padding-bottom: 40px;
  }
  .quote-card:last-child {
    border-bottom: none;
    padding-bottom: 0;
  }

  /* CTA section */
  .cta-section {
    padding: 64px 20px;
  }

  /* About strip */
  .about-strip {
    padding: 56px 20px;
    flex-direction: column;
    gap: 24px;
  }
  .about-title {
    font-size: 32px;
  }

  /* Stat strip — 2x2 grid */
  .stat-strip {
    flex-wrap: wrap;
  }
  .stat-block {
    flex: 1 1 50%;
    padding: 32px 20px;
    border-bottom: 1px solid #e0e0e0;
  }
  .stat-block:nth-child(2) {
    border-right: none;
  }
  .stat-block:nth-child(3),
  .stat-block:nth-child(4) {
    border-bottom: none;
  }
  .stat-num {
    font-size: 40px;
  }

  /* Chat pages */
  .chat-header {
    padding: 0 20px;
  }
  .chat-messages {
    padding: 20px;
    gap: 20px;
  }
  .chat-input {
    padding: 16px 20px;
  }
  .message {
    max-width: 88%;
  }
  .message-bubble {
    max-width: 100%;
  }
  .empty-title {
    font-size: 44px;
  }
  .quick-prompts {
    gap: 8px;
  }
  .chip {
    font-size: 12px;
    padding: 9px 14px;
  }
  .send-btn {
    padding: 0 20px;
  }

  /* Auth page */
  .auth-container {
    padding: 20px;
  }
  .auth-box {
    padding: 40px 24px;
  }
  .auth-heading {
    font-size: 36px;
  }
}