:root {
  color-scheme: light;
  --bg: #f7f9ff;
  --primary: #1d5bff;
  --primary-dark: #0b3db9;
  --text: #0f1b3a;
  --muted: #5b6b8a;
  --glass: rgba(255, 255, 255, 0.65);
  --glass-strong: rgba(255, 255, 255, 0.85);
  --border: rgba(29, 91, 255, 0.2);
  --shadow: 0 20px 60px rgba(13, 30, 70, 0.12);
  --radius-lg: 28px;
  --radius-md: 18px;
  --radius-sm: 12px;
}

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

body {
  font-family: "Manrope", "Inter", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.6;
  min-height: 100vh;
  position: relative;
  overflow-x: hidden;
}

.background-shapes span {
  position: absolute;
  width: 240px;
  height: 240px;
  border-radius: 40% 60% 50% 50%;
  background: radial-gradient(circle at top, rgba(29, 91, 255, 0.24), rgba(29, 91, 255, 0.05));
  filter: blur(4px);
  animation: float 14s ease-in-out infinite;
  z-index: -1;
}

.background-shapes span:nth-child(1) {
  top: -80px;
  left: 10%;
}

.background-shapes span:nth-child(2) {
  top: 260px;
  right: 8%;
  animation-delay: 3s;
}

.background-shapes span:nth-child(3) {
  bottom: 120px;
  left: 15%;
  animation-delay: 6s;
}

.background-shapes span:nth-child(4) {
  bottom: -80px;
  right: 20%;
  animation-delay: 9s;
}

@keyframes float {
  0%,
  100% {
    transform: translateY(0px) scale(1);
  }
  50% {
    transform: translateY(-30px) scale(1.03);
  }
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  backdrop-filter: blur(14px);
  background: rgba(247, 249, 255, 0.8);
  border-bottom: 1px solid rgba(29, 91, 255, 0.08);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  max-width: 1200px;
  margin: 0 auto;
  padding: 1.2rem 1.5rem;
}

.logo {
  font-weight: 700;
  font-size: 1.3rem;
  color: var(--text);
  text-decoration: none;
}

.nav-links {
  display: flex;
  gap: 1.2rem;
  flex-wrap: wrap;
}

.nav-links a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
  padding-bottom: 0.2rem;
  border-bottom: 2px solid transparent;
  transition: 0.2s ease;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--primary);
  border-color: rgba(29, 91, 255, 0.6);
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 0.8rem;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  font-size: 1.5rem;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.65rem 1.4rem;
  border-radius: 999px;
  text-decoration: none;
  font-weight: 600;
  border: 1px solid transparent;
  transition: 0.2s ease;
}

.btn.primary {
  background: var(--primary);
  color: #fff;
  box-shadow: 0 12px 30px rgba(29, 91, 255, 0.25);
}

.btn.primary:hover {
  background: var(--primary-dark);
  transform: translateY(-1px);
}

.btn.ghost {
  color: var(--primary);
  border-color: rgba(29, 91, 255, 0.4);
  background: rgba(255, 255, 255, 0.4);
}

.btn.ghost:hover {
  border-color: var(--primary);
  transform: translateY(-1px);
}

.hero {
  max-width: 1200px;
  margin: 0 auto;
  padding: 5rem 1.5rem 4rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 3rem;
  align-items: center;
}

.hero-content h1 {
  font-size: clamp(2.4rem, 4vw, 3.6rem);
  line-height: 1.2;
  margin-bottom: 1rem;
}

.eyebrow {
  text-transform: uppercase;
  letter-spacing: 0.12em;
  font-size: 0.75rem;
  color: var(--primary);
  font-weight: 600;
  margin-bottom: 1rem;
}

.lead {
  color: var(--muted);
  font-size: 1.05rem;
  margin-bottom: 1.5rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin-bottom: 1.6rem;
}

.trust-badges {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  font-size: 0.85rem;
  color: var(--muted);
}

.trust-badges span {
  padding: 0.4rem 0.8rem;
  background: rgba(255, 255, 255, 0.7);
  border-radius: 999px;
  border: 1px solid rgba(29, 91, 255, 0.2);
}

.chat-window {
  background: var(--glass-strong);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow);
  border: 1px solid rgba(29, 91, 255, 0.15);
  padding: 1.5rem;
  backdrop-filter: blur(18px);
}

.chat-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: 1rem;
}

.chat-header h3 {
  font-size: 1.1rem;
  margin-bottom: 0.1rem;
}

.chat-header p {
  font-size: 0.85rem;
  color: var(--muted);
}

.chat-body {
  display: grid;
  gap: 0.8rem;
  max-height: 280px;
}

.chat-bubble {
  padding: 0.75rem 1rem;
  border-radius: 20px;
  background: var(--glass);
  backdrop-filter: blur(10px);
  border: 1px solid rgba(29, 91, 255, 0.18);
  width: fit-content;
  max-width: 85%;
  animation: bubbleIn 0.6s ease both;
  position: relative;
}

.chat-bubble .mood {
  margin-right: 0.4rem;
}

.chat-bubble.outgoing {
  justify-self: end;
  background: rgba(29, 91, 255, 0.15);
  border-color: rgba(29, 91, 255, 0.3);
}

.chat-input {
  display: flex;
  align-items: center;
  gap: 0.6rem;
  margin-top: 1.4rem;
  background: rgba(255, 255, 255, 0.65);
  border-radius: 999px;
  padding: 0.4rem 0.6rem;
  border: 1px solid rgba(29, 91, 255, 0.2);
}

.chat-input input {
  border: none;
  outline: none;
  background: transparent;
  flex: 1;
  padding: 0.6rem;
  font-size: 0.95rem;
}

.send-btn {
  width: 42px;
  height: 42px;
  border-radius: 50%;
  border: none;
  background: var(--primary);
  color: #fff;
  font-size: 1rem;
  box-shadow: 0 0 0 rgba(29, 91, 255, 0.4);
  cursor: pointer;
  transition: 0.2s ease;
}

.send-btn.thinking {
  animation: pulse 1.8s ease-in-out infinite;
}

.send-btn:hover {
  transform: translateY(-1px);
}

.typing-indicator {
  display: inline-flex;
  gap: 0.3rem;
  align-items: center;
  padding: 0.6rem 0.8rem;
  background: rgba(255, 255, 255, 0.65);
  border-radius: 999px;
  width: fit-content;
}

.typing-indicator span {
  width: 6px;
  height: 6px;
  background: var(--primary);
  border-radius: 50%;
  animation: typing 1.2s infinite;
}

.typing-indicator span:nth-child(2) {
  animation-delay: 0.2s;
}

.typing-indicator span:nth-child(3) {
  animation-delay: 0.4s;
}

.section {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4.5rem 1.5rem;
}

.section-header {
  text-align: center;
  margin-bottom: 2.5rem;
}

.section-header h2 {
  font-size: clamp(1.8rem, 3vw, 2.6rem);
  margin-bottom: 0.6rem;
}

.section-header p {
  color: var(--muted);
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 1.5rem;
}

.glass-card {
  background: var(--glass);
  padding: 1.6rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(29, 91, 255, 0.2);
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.glass-card:hover {
  transform: translateY(-6px) rotateX(1deg);
  box-shadow: 0 24px 60px rgba(13, 30, 70, 0.16);
}

.split {
  display: grid;
  gap: 2rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  align-items: center;
}

.checklist {
  list-style: none;
  margin-top: 1.2rem;
  display: grid;
  gap: 0.6rem;
}

.checklist li::before {
  content: "✓";
  margin-right: 0.6rem;
  color: var(--primary);
}

.mini-dashboard {
  display: grid;
  gap: 1rem;
}

.mini-card {
  background: var(--glass-strong);
  padding: 1.2rem 1.4rem;
  border-radius: var(--radius-md);
  border: 1px solid rgba(29, 91, 255, 0.18);
  box-shadow: var(--shadow);
}

.callout {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1.5rem;
  background: rgba(255, 255, 255, 0.75);
  border-radius: var(--radius-lg);
  border: 1px solid rgba(29, 91, 255, 0.2);
}

.site-footer {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2.5rem 1.5rem 3.5rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 2rem;
  color: var(--muted);
}

.page-hero {
  max-width: 1100px;
  margin: 0 auto;
  padding: 4.5rem 1.5rem 2.5rem;
  text-align: center;
}

.page-hero h1 {
  font-size: clamp(2rem, 3.6vw, 3rem);
  margin-bottom: 0.8rem;
}

.page-hero p {
  color: var(--muted);
}

.grid-two {
  display: grid;
  gap: 1.8rem;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.dashboard-layout {
  max-width: 1200px;
  margin: 0 auto;
  padding: 3.5rem 1.5rem 4.5rem;
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.chat-card {
  background: var(--glass);
  border-radius: var(--radius-md);
  padding: 1.4rem;
  border: 1px solid rgba(29, 91, 255, 0.2);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  cursor: pointer;
}

.chat-card:hover {
  transform: translateY(-6px);
}

.chat-card h4 {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.chat-card p {
  margin-top: 0.6rem;
  color: var(--muted);
}

.private-shell {
  max-width: 1200px;
  margin: 0 auto;
  padding: 2rem 1.5rem 4rem;
  display: grid;
  grid-template-columns: 240px 1fr;
  gap: 2rem;
}

.side-nav {
  background: rgba(255, 255, 255, 0.75);
  border-radius: var(--radius-md);
  padding: 1.5rem;
  border: 1px solid rgba(29, 91, 255, 0.2);
  height: fit-content;
  position: sticky;
  top: 120px;
}

.side-nav a {
  display: block;
  color: var(--muted);
  text-decoration: none;
  padding: 0.6rem 0.4rem;
  border-radius: 12px;
}

.side-nav a.active,
.side-nav a:hover {
  color: var(--primary);
  background: rgba(29, 91, 255, 0.08);
}

.chat-thread {
  background: var(--glass-strong);
  border-radius: var(--radius-lg);
  padding: 2rem;
  border: 1px solid rgba(29, 91, 255, 0.2);
  box-shadow: var(--shadow);
}

.chat-thread .chat-body {
  max-height: none;
}

.voice-card,
.settings-card,
.history-card {
  background: var(--glass);
  border-radius: var(--radius-md);
  padding: 1.4rem;
  border: 1px solid rgba(29, 91, 255, 0.2);
}

.voice-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.8rem;
  margin-top: 1rem;
}

.form-grid {
  display: grid;
  gap: 1rem;
}

input,
select,
textarea {
  font-family: inherit;
}

@keyframes bubbleIn {
  0% {
    opacity: 0;
    transform: translateY(10px) scale(0.96);
  }
  70% {
    transform: translateY(-2px) scale(1.01);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

@keyframes typing {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-4px);
  }
}

@keyframes pulse {
  0%,
  100% {
    box-shadow: 0 0 0 0 rgba(29, 91, 255, 0.4);
  }
  50% {
    box-shadow: 0 0 0 12px rgba(29, 91, 255, 0);
  }
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  border: 0;
}

@media (max-width: 960px) {
  .nav-links {
    display: none;
  }

  .nav-toggle {
    display: inline-flex;
  }

  .nav-links.open {
    display: flex;
    flex-direction: column;
    width: 100%;
    background: rgba(255, 255, 255, 0.95);
    padding: 1rem;
    border-radius: 16px;
    margin-top: 1rem;
  }

  .nav-actions {
    display: none;
  }

  .private-shell {
    grid-template-columns: 1fr;
  }

  .side-nav {
    position: static;
  }
}

@media (max-width: 640px) {
  .hero {
    padding-top: 3.5rem;
  }

  .chat-window {
    padding: 1.2rem;
  }
}