:root {
  --bg: #f4f1ef;
  --panel: rgba(255, 255, 255, 0.85);
  --panel-solid: #ffffff;
  --sidebar: #cb0f33;
  --sidebar-deep: #9d0f2c;
  --sidebar-active: rgba(255, 255, 255, 0.14);
  --text: #28252a;
  --muted: #766f76;
  --line: rgba(47, 33, 38, 0.08);
  --shadow: 0 24px 60px rgba(102, 49, 62, 0.12);
  --radius: 24px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  font-family: "Plus Jakarta Sans", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top right, rgba(203, 15, 51, 0.12), transparent 24%),
    radial-gradient(circle at bottom left, rgba(245, 178, 130, 0.16), transparent 28%),
    linear-gradient(180deg, #f8f5f2 0%, #f1ece9 100%);
}

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

.app-shell {
  min-height: 100vh;
  display: grid;
  grid-template-columns: 240px 1fr;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.06), transparent 18%),
    linear-gradient(180deg, var(--sidebar) 0%, var(--sidebar-deep) 100%);
  color: #fff4f5;
  box-shadow: inset -1px 0 0 rgba(255, 255, 255, 0.08);
}

.sidebar__brand {
  padding: 24px 22px 14px;
}

.sidebar__title {
  font-family: "Manrope", sans-serif;
  font-size: 1.45rem;
  font-weight: 800;
  letter-spacing: -0.04em;
}

.sidebar__nav {
  padding: 0 10px 18px;
  display: grid;
  gap: 6px;
}

.nav-item {
  display: grid;
  grid-template-columns: 18px 1fr auto;
  align-items: center;
  gap: 12px;
  min-height: 42px;
  padding: 0 12px;
  border-radius: 14px;
  font-size: 0.96rem;
  color: rgba(255, 244, 245, 0.92);
  transition: background-color 180ms ease, transform 180ms ease;
}

.nav-item:hover,
.nav-item:focus-visible {
  background: rgba(255, 255, 255, 0.1);
  transform: translateX(2px);
}

.nav-item--active {
  background: var(--sidebar-active);
  box-shadow: inset 0 0 0 1px rgba(255, 255, 255, 0.08);
}

.nav-item__icon,
.nav-item__caret {
  font-size: 0.85rem;
}

.main-content {
  min-width: 0;
  padding-bottom: 48px;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 18px 28px;
  background: rgba(255, 252, 251, 0.74);
  backdrop-filter: blur(14px);
  border-bottom: 1px solid rgba(70, 31, 43, 0.08);
}

.topbar h1,
.hero h2,
.actions h3,
.action-card h4 {
  font-family: "Manrope", sans-serif;
}

.topbar h1 {
  margin: 0;
  font-size: 1.9rem;
  letter-spacing: -0.04em;
}

.menu-toggle,
.avatar,
.composer button,
.hero__bot {
  display: grid;
  place-items: center;
  border: 0;
}

.menu-toggle {
  display: none;
  width: 42px;
  height: 42px;
  border-radius: 12px;
  background: rgba(203, 15, 51, 0.12);
  color: #94122c;
  font-size: 1.2rem;
}

.avatar {
  width: 46px;
  height: 46px;
  border-radius: 999px;
  font-weight: 700;
  color: #fff;
  background: linear-gradient(180deg, #df2149 0%, #ba1233 100%);
  box-shadow: 0 14px 24px rgba(203, 15, 51, 0.22);
}

.hero {
  text-align: center;
  padding: 52px 24px 18px;
}

.hero__bot {
  width: 66px;
  height: 66px;
  margin: 0 auto 18px;
  border-radius: 999px;
  font-size: 1.9rem;
  color: white;
  background: linear-gradient(180deg, #df2149 0%, #ba1233 100%);
  box-shadow: 0 18px 30px rgba(203, 15, 51, 0.2);
}

.eyebrow {
  margin: 0 0 8px;
  color: #b14c61;
  font-size: 0.83rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.hero h2 {
  margin: 0;
  font-size: clamp(2rem, 4vw, 3rem);
  letter-spacing: -0.05em;
}

.hero__copy {
  max-width: 620px;
  margin: 12px auto 0;
  color: var(--muted);
  font-size: 1.02rem;
  line-height: 1.6;
}

.chat-card,
.actions {
  width: min(100%, 980px);
  margin: 24px auto 0;
  padding: 18px;
}

.chat-card {
  background: var(--panel);
  backdrop-filter: blur(18px);
  border: 1px solid rgba(255, 255, 255, 0.8);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.message {
  max-width: min(100%, 520px);
  border-radius: 20px;
  padding: 18px 20px;
  font-size: 0.98rem;
  line-height: 1.65;
}

.message + .message {
  margin-top: 12px;
}

.message--assistant {
  background: linear-gradient(180deg, #f8f3f1 0%, #eee7e3 100%);
  box-shadow: inset 0 0 0 1px rgba(55, 32, 39, 0.05);
}

.message--prompt {
  background: linear-gradient(180deg, #faf8f7 0%, #f1ece8 100%);
  color: #554d54;
}

.message--prompt ul {
  margin: 10px 0 0;
  padding-left: 18px;
}

.composer {
  margin-top: 22px;
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
  align-items: center;
  padding-top: 18px;
  border-top: 1px solid var(--line);
}

.composer input {
  width: 100%;
  min-height: 52px;
  padding: 0 18px;
  border: 1px solid rgba(83, 56, 63, 0.12);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.88);
  color: var(--text);
  font: inherit;
  outline: none;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.composer input:focus {
  border-color: rgba(203, 15, 51, 0.4);
  box-shadow: 0 0 0 4px rgba(203, 15, 51, 0.1);
}

.composer button {
  width: 48px;
  height: 48px;
  border-radius: 999px;
  color: white;
  background: linear-gradient(180deg, #df2149 0%, #ba1233 100%);
  box-shadow: 0 14px 24px rgba(203, 15, 51, 0.24);
  cursor: pointer;
}

.actions {
  padding-top: 8px;
}

.actions h3 {
  margin: 0 0 14px;
  text-align: center;
  font-size: 1.6rem;
  letter-spacing: -0.04em;
}

.action-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.action-card {
  display: block;
  position: relative;
  overflow: hidden;
  min-height: 180px;
  padding: 24px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.9), rgba(249, 244, 241, 0.88)),
    var(--panel-solid);
  border-radius: 22px;
  border: 1px solid rgba(71, 41, 49, 0.08);
  box-shadow: 0 18px 38px rgba(83, 47, 57, 0.08);
  transition: transform 180ms ease, box-shadow 180ms ease;
}

.action-card:hover,
.action-card:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 22px 42px rgba(83, 47, 57, 0.12);
}

.action-card::after {
  content: "";
  position: absolute;
  inset: auto -30px -44px auto;
  width: 120px;
  height: 120px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(203, 15, 51, 0.14), transparent 70%);
}

.action-card__label {
  display: inline-flex;
  margin-bottom: 16px;
  padding: 6px 10px;
  border-radius: 999px;
  background: rgba(203, 15, 51, 0.08);
  color: #9e1934;
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.action-card h4 {
  margin: 0;
  font-size: 1.3rem;
  letter-spacing: -0.04em;
}

.action-card p {
  margin: 10px 0 0;
  color: var(--muted);
  line-height: 1.6;
}

.page-hero {
  padding: 42px 24px 10px;
  text-align: center;
}

.page-grid {
  width: min(100%, 980px);
  margin: 0 auto;
  padding: 20px 18px 40px;
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 18px;
}

.info-panel {
  padding: 24px;
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.82);
  border: 1px solid rgba(71, 41, 49, 0.08);
  box-shadow: 0 18px 38px rgba(83, 47, 57, 0.08);
}

.info-panel h3 {
  margin: 0 0 12px;
  font-family: "Manrope", sans-serif;
  font-size: 1.25rem;
  letter-spacing: -0.04em;
}

.info-panel p {
  margin: 0;
  color: var(--muted);
  line-height: 1.65;
}

.text-link {
  display: inline-block;
  margin-top: 18px;
  color: #a11734;
  font-weight: 700;
}

.text-link:hover,
.text-link:focus-visible {
  text-decoration: underline;
}

body.sidebar-open {
  overflow: hidden;
}

@media (max-width: 920px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: fixed;
    inset: 0 auto 0 0;
    width: min(86vw, 320px);
    transform: translateX(-100%);
    transition: transform 220ms ease;
    z-index: 20;
  }

  .sidebar.is-open {
    transform: translateX(0);
  }

  .menu-toggle {
    display: grid;
  }

  .topbar {
    padding: 16px 18px;
  }

  .topbar h1 {
    flex: 1;
    font-size: 1.5rem;
  }

  .chat-card,
  .actions {
    width: min(100% - 24px, 980px);
  }

  .action-grid {
    grid-template-columns: 1fr;
  }

  .page-grid {
    grid-template-columns: 1fr;
    width: min(100% - 24px, 980px);
    padding-left: 0;
    padding-right: 0;
  }
}

@media (max-width: 640px) {
  .hero {
    padding: 36px 18px 10px;
  }

  .chat-card {
    padding: 14px;
  }

  .message {
    max-width: 100%;
    font-size: 0.94rem;
  }

  .composer {
    grid-template-columns: 1fr;
  }

  .composer button {
    width: 100%;
    border-radius: 16px;
  }
}