:root {
  --bg: #f7fbff;
  --surface: #ffffff;
  --surface-muted: #f0f4f7;
  --border: #dce7ef;
  --text: #163046;
  --text-soft: #5d7284;
  --accent: #b8ddff;
  --accent-strong: #72b7f5;
  --shadow: 0 24px 60px rgba(117, 155, 190, 0.16);
  --section-gap: 48px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Manrope", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(184, 221, 255, 0.7), transparent 28%),
    radial-gradient(circle at bottom right, rgba(184, 221, 255, 0.25), transparent 40%),
    linear-gradient(180deg, #ffffff 0%, var(--bg) 100%);
}

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

/* ---- Header ---- */

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: 84px;
  padding: 0 28px;
  background: rgba(255, 255, 255, 0.86);
  border-bottom: 1px solid rgba(220, 231, 239, 0.9);
  backdrop-filter: blur(18px);
}

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

.company-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, var(--accent), #e6f3ff);
  border: 1px solid rgba(114, 183, 245, 0.22);
  font-weight: 800;
}

.header-label {
  font-size: 0.85rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.company-brand {
  position: absolute;
  left: 50%;
  transform: translateX(-50%);
  display: flex;
  align-items: center;
  gap: 10px;
}

.company-name {
  margin: 0;
  font-size: 1.15rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  white-space: nowrap;
}

.company-logo {
  display: block;
  width: auto;
  height: 32px;
  object-fit: contain;
}

.header-cta {
  display: inline-flex;
  align-items: center;
  padding: 10px 20px;
  border-radius: 999px;
  background: var(--text);
  color: #ffffff;
  font-family: inherit;
  font-size: 0.82rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  white-space: nowrap;
  transition: background 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.header-cta:hover {
  background: #1e4a6e;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(22, 48, 70, 0.2);
}

/* ---- Layout ---- */

.layout {
  display: grid;
  grid-template-columns: 260px minmax(0, 1fr);
  min-height: calc(100vh - 84px);
}

.sidebar {
  padding: 28px 18px 28px 28px;
  border-right: 1px solid rgba(220, 231, 239, 0.9);
  background: rgba(255, 255, 255, 0.74);
}

.sidebar-panel {
  position: sticky;
  top: 112px;
  padding: 20px;
  border: 1px solid var(--border);
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.98) 0%, rgba(240, 244, 247, 0.95) 100%);
  box-shadow: var(--shadow);
}

.sidebar-title {
  margin: 0 0 8px;
  font-size: 0.8rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--text-soft);
}

.sidebar-copy {
  margin: 0 0 18px;
  line-height: 1.6;
  font-size: 0.95rem;
  color: var(--text-soft);
}

.nav-list {
  display: grid;
  gap: 10px;
}

.nav-link {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 13px 14px;
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid transparent;
  color: var(--text-soft);
  transition: transform 180ms ease, border-color 180ms ease, background 180ms ease;
}

.nav-link:hover,
.nav-link:focus-visible {
  transform: translateX(3px);
  border-color: rgba(114, 183, 245, 0.3);
  background: #f3faff;
  color: var(--text);
  outline: none;
}

.content {
  padding: 34px;
  max-width: 1120px;
}

/* ---- Hero ---- */

.hero {
  position: relative;
  isolation: isolate;
  overflow: hidden;
  padding: 48px;
  border: 1px solid rgba(220, 231, 239, 0.95);
  border-radius: 32px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(233, 244, 252, 0.9) 100%);
  box-shadow: var(--shadow);
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -110px -120px auto;
  width: 250px;
  height: 250px;
  border-radius: 50%;
  background: rgba(184, 221, 255, 0.38);
  filter: blur(20px);
  z-index: 0;
  pointer-events: none;
}

.hero > * {
  position: relative;
  z-index: 1;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  padding: 8px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.78);
  border: 1px solid rgba(114, 183, 245, 0.22);
  color: var(--text-soft);
  font-size: 0.84rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero h2 {
  max-width: 10ch;
  margin: 22px 0 16px;
  font-size: clamp(2.5rem, 4vw, 4.8rem);
  line-height: 0.98;
  letter-spacing: -0.05em;
}

.hero p {
  max-width: 640px;
  margin: 0;
  line-height: 1.7;
  font-size: 1.05rem;
  color: var(--text-soft);
}

.hero p + p {
  margin-top: 20px;
}

/* ---- Sections ---- */

.section-heading {
  display: flex;
  align-items: center;
  gap: 14px;
  margin: var(--section-gap) 0 0;
  font-size: 1.2rem;
  font-weight: 800;
}

.section-heading::before {
  content: "";
  width: 4px;
  height: 1em;
  border-radius: 2px;
  background: var(--accent-strong);
}

.subsection-heading {
  display: flex;
  align-items: center;
  gap: 12px;
  margin: 32px 0 0;
  font-size: 1.05rem;
  font-weight: 700;
  color: var(--text-soft);
}

.subsection-heading::before {
  content: "";
  width: 3px;
  height: 0.9em;
  border-radius: 2px;
  background: var(--accent);
}

/* ---- Grids ---- */

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 20px;
}

.grid-2 {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 20px;
  margin-top: 20px;
}

/* ---- Cards ---- */

.card {
  padding: 28px;
  border: 1px solid rgba(220, 231, 239, 0.95);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.92);
  box-shadow: 0 18px 40px rgba(117, 155, 190, 0.1);
  transition: transform 260ms ease, box-shadow 260ms ease, border-color 260ms ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: 0 24px 48px rgba(117, 155, 190, 0.16);
  border-color: rgba(114, 183, 245, 0.3);
}

.card h3 {
  margin: 0;
  font-size: 1rem;
  color: var(--text);
}

.card p {
  margin: 10px 0 0;
  line-height: 1.65;
  color: var(--text-soft);
}

/* ---- Metrics ---- */

.metrics {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 20px;
  margin-top: 24px;
}

.metric {
  padding: 22px 24px;
  border-radius: 22px;
  background: linear-gradient(180deg, #ffffff 0%, #f3f7fa 100%);
  border: 1px solid var(--border);
  transition: border-color 260ms ease;
}

.metric:hover {
  border-color: rgba(114, 183, 245, 0.35);
}

.metric strong {
  display: block;
  margin: 0 0 6px;
  font-size: 1.05rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--text);
}

.metric span {
  margin: 0;
  line-height: 1.65;
  font-size: 0.92rem;
  color: var(--text-soft);
}

/* ---- Signup / Feature sections ---- */

.signup {
  margin-top: var(--section-gap);
  padding: 48px;
  border: 1px solid rgba(220, 231, 239, 0.95);
  border-radius: 32px;
  background: linear-gradient(135deg, rgba(255, 255, 255, 0.98) 0%, rgba(233, 244, 252, 0.9) 100%);
  box-shadow: var(--shadow);
}

.signup h2 {
  margin: 0 0 8px;
  font-size: 1.2rem;
  font-weight: 800;
}

.signup p {
  margin: 0 0 24px;
  color: var(--text-soft);
  line-height: 1.6;
  font-size: 0.95rem;
}

.signup-form {
  display: flex;
  gap: 12px;
  max-width: 520px;
}

.signup-input {
  flex: 1;
  padding: 14px 18px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: rgba(255, 255, 255, 0.9);
  font-family: inherit;
  font-size: 0.95rem;
  color: var(--text);
  outline: none;
  transition: border-color 180ms ease, box-shadow 180ms ease;
}

.signup-input::placeholder {
  color: var(--text-soft);
  opacity: 0.6;
}

.signup-input:focus {
  border-color: var(--accent-strong);
  box-shadow: 0 0 0 3px rgba(114, 183, 245, 0.15);
}

.signup-btn {
  padding: 14px 28px;
  border: none;
  border-radius: 16px;
  background: var(--text);
  color: #ffffff;
  font-family: inherit;
  font-size: 0.9rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  cursor: pointer;
  white-space: nowrap;
  transition: background 180ms ease, transform 180ms ease, box-shadow 180ms ease;
}

.signup-btn:hover {
  background: #1e4a6e;
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(22, 48, 70, 0.2);
}

.signup-btn:disabled {
  opacity: 0.6;
  cursor: not-allowed;
  transform: none;
  box-shadow: none;
}

.signup-msg {
  margin: 14px 0 0;
  font-size: 0.88rem;
  line-height: 1.5;
}

.signup-msg.success {
  color: #1a8a4a;
}

.signup-msg.error {
  color: #c93131;
}

/* ---- Footer ---- */

.footer {
  margin-top: var(--section-gap);
  padding: 24px 0 8px;
  border-top: 1px solid var(--border);
  color: var(--text-soft);
  font-size: 0.84rem;
  letter-spacing: 0.02em;
}

/* ---- Responsive ---- */

@media (max-width: 1040px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    padding: 20px 24px 0;
    border-right: 0;
  }

  .sidebar-panel {
    top: 96px;
  }

  .grid,
  .metrics {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 860px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 720px) {
  .site-header {
    position: static;
    flex-direction: column;
    justify-content: center;
    gap: 14px;
    padding: 20px;
  }

  .company-brand {
    position: static;
    transform: none;
    order: -1;
  }

  .header-group {
    width: 100%;
    justify-content: center;
  }

  .header-cta {
    width: 100%;
    text-align: center;
    justify-content: center;
  }

  .content,
  .sidebar {
    padding: 20px;
  }

  .hero {
    padding: 28px;
  }

  .grid,
  .metrics {
    grid-template-columns: 1fr;
  }

  .signup {
    padding: 28px;
  }

  .signup-form {
    flex-direction: column;
  }

  .signup-btn {
    width: 100%;
    text-align: center;
  }
}