:root {
  --navy: #071a2f;
  --navy-2: #0b2342;
  --blue: #1f57e7;
  --blue-soft: #60a8ff;
  --teal: #0d8b72;
  --teal-soft: #61dfca;
  --bg: #f2f5fb;
  --panel: #ffffff;
  --panel-soft: #f7f9fd;
  --border: rgba(8, 31, 61, 0.12);
  --text: #12243b;
  --muted: #5d6c82;
  --success: #1f7a3f;
  --warning: #9b6c12;
  --danger: #a93232;
  --shadow: 0 22px 60px rgba(4, 19, 39, 0.12);
  --radius-xl: 28px;
  --radius-lg: 20px;
  --radius-md: 14px;
  --radius-sm: 10px;
  --sans: "Manrope", sans-serif;
  --mono: "JetBrains Mono", monospace;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    radial-gradient(circle at top left, rgba(96, 168, 255, 0.18), transparent 28%),
    linear-gradient(180deg, #06192e 0, #0a2240 560px, var(--bg) 560px, var(--bg) 100%);
  color: var(--text);
  font-family: var(--sans);
}

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

button,
input,
select {
  font: inherit;
}

.site-shell {
  min-height: 100vh;
}

.container {
  width: min(1180px, calc(100% - 40px));
  margin: 0 auto;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 30;
  backdrop-filter: blur(14px);
  background: rgba(7, 26, 47, 0.82);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  padding: 16px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  color: #fff;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.brand-mark {
  width: 36px;
  height: 36px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: linear-gradient(135deg, var(--blue) 0%, #2f86ff 100%);
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.16);
  font-size: 12px;
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a {
  color: rgba(255, 255, 255, 0.72);
  font-size: 14px;
  font-weight: 600;
  padding: 10px 12px;
  border-radius: 999px;
  transition: 0.2s ease;
}

.site-nav a:hover {
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.site-nav .nav-cta {
  color: #fff;
  background: linear-gradient(135deg, var(--blue) 0%, #2d7bf7 100%);
}

.hero {
  padding: 72px 0 48px;
  color: #fff;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  font-size: 12px;
  letter-spacing: 0.22em;
  text-transform: uppercase;
  color: rgba(255, 255, 255, 0.58);
}

.eyebrow::before {
  content: "";
  width: 32px;
  height: 2px;
  background: var(--blue-soft);
  border-radius: 999px;
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(320px, 0.85fr);
  gap: 34px;
  align-items: stretch;
  margin-top: 22px;
}

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

.hero-copy::before {
  content: "";
  position: absolute;
  inset: -32px -24px -36px -24px;
  z-index: -1;
  border-radius: 32px;
  background: linear-gradient(180deg, rgba(7, 26, 47, 0.24), rgba(7, 26, 47, 0.58));
  box-shadow: 0 28px 70px rgba(3, 13, 27, 0.2);
}

.hero-copy h1 {
  margin: 0 0 18px;
  font-size: clamp(42px, 7vw, 76px);
  line-height: 0.96;
  letter-spacing: -0.05em;
}

.hero-copy h1 span {
  color: var(--blue-soft);
}

.hero-copy p {
  margin: 0 0 26px;
  font-size: clamp(17px, 2vw, 22px);
  line-height: 1.65;
  color: rgba(255, 255, 255, 0.82);
  max-width: 720px;
}

.hero-actions {
  display: flex;
  gap: 14px;
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 14px 22px;
  border-radius: 14px;
  border: 1px solid transparent;
  font-size: 15px;
  font-weight: 700;
  transition: 0.2s ease;
}

.button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--blue) 0%, #2f7cff 100%);
  box-shadow: 0 18px 36px rgba(22, 83, 221, 0.24);
}

.button-secondary {
  color: #fff;
  border-color: rgba(255, 255, 255, 0.16);
  background: rgba(255, 255, 255, 0.06);
}

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

.hero-card {
  background: linear-gradient(180deg, rgba(19, 51, 93, 0.92), rgba(10, 28, 53, 0.92));
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: 0 26px 70px rgba(3, 13, 27, 0.34);
}

.hero-card h2 {
  margin: 0 0 16px;
  font-size: 24px;
  line-height: 1.2;
}

.hero-card ul {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 14px;
}

.hero-card li {
  padding: 12px 14px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.06);
  color: rgba(255, 255, 255, 0.82);
  font-size: 14px;
  line-height: 1.6;
}

.hero-card strong {
  color: #fff;
}

.stats {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 14px;
  margin-top: 26px;
}

.stat {
  padding: 18px;
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.12);
  backdrop-filter: blur(10px);
}

.stat strong {
  display: block;
  margin-bottom: 6px;
  font-size: 28px;
  color: #fff;
}

.stat span {
  color: rgba(255, 255, 255, 0.64);
  font-size: 13px;
}

.page-body {
  padding: 24px 0 56px;
}

.section {
  margin-top: 28px;
}

.section-heading {
  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 20px;
  margin-bottom: 18px;
}

.section-heading h2 {
  margin: 0;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1;
  letter-spacing: -0.04em;
  color: var(--navy);
}

.section-heading p {
  margin: 0;
  max-width: 620px;
  color: var(--muted);
  line-height: 1.7;
  font-size: 15px;
}

.tool-tabs {
  display: grid;
  grid-template-columns: repeat(6, minmax(0, 1fr));
  gap: 12px;
}

.tool-tab {
  padding: 18px 14px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.82);
  text-align: left;
  cursor: pointer;
  transition: 0.2s ease;
  box-shadow: 0 10px 30px rgba(7, 20, 39, 0.06);
}

.tool-tab:hover,
.tool-tab.active {
  border-color: rgba(31, 87, 231, 0.38);
  background: linear-gradient(180deg, #ffffff, #eef5ff);
  transform: translateY(-2px);
}

.tool-tab strong {
  display: block;
  margin-bottom: 6px;
  color: var(--navy);
  font-size: 15px;
}

.tool-tab span {
  display: block;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

.panel {
  display: none;
  grid-template-columns: minmax(0, 1.25fr) minmax(280px, 0.75fr);
  gap: 22px;
  margin-top: 18px;
}

.panel.active {
  display: grid;
}

.card {
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid var(--border);
  border-radius: var(--radius-xl);
  padding: 28px;
  box-shadow: var(--shadow);
}

.card h3 {
  margin: 0 0 8px;
  font-size: 28px;
  letter-spacing: -0.03em;
  color: var(--navy);
}

.card p.lead {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.7;
}

.grid-2,
.grid-3 {
  display: grid;
  gap: 14px;
}

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

.grid-3 {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.field {
  display: flex;
  flex-direction: column;
  gap: 7px;
  margin-bottom: 14px;
}

.field label {
  font-size: 12px;
  font-weight: 700;
  color: var(--text);
}

.field input,
.field select {
  width: 100%;
  border: 1px solid rgba(15, 34, 60, 0.16);
  background: #fff;
  border-radius: 12px;
  padding: 13px 14px;
  color: var(--text);
  transition: 0.2s ease;
}

.field input:focus,
.field select:focus {
  outline: none;
  border-color: rgba(31, 87, 231, 0.6);
  box-shadow: 0 0 0 4px rgba(31, 87, 231, 0.12);
}

.mono {
  font-family: var(--mono);
  letter-spacing: 0.04em;
}

.result {
  display: none;
  margin-top: 18px;
  padding: 18px;
  border-radius: 18px;
  border: 1px solid transparent;
  font-size: 14px;
  line-height: 1.65;
}

.result.show {
  display: block;
}

.result.success {
  background: #e8f7ee;
  border-color: rgba(31, 122, 63, 0.24);
}

.result.warning {
  background: #fff6e6;
  border-color: rgba(155, 108, 18, 0.24);
}

.result.error {
  background: #fff0f0;
  border-color: rgba(169, 50, 50, 0.24);
}

.result.info {
  background: #edf4ff;
  border-color: rgba(31, 87, 231, 0.22);
}

.result h4 {
  margin: 0 0 8px;
  font-size: 16px;
  color: var(--navy);
}

.result ul {
  margin: 0;
  padding-left: 18px;
}

.result li + li {
  margin-top: 5px;
}

.info-stack {
  display: grid;
  gap: 14px;
}

.info-stack .info-card {
  padding: 18px;
  border-radius: 18px;
  background: linear-gradient(180deg, #f8fbff, #eef5ff);
  border: 1px solid rgba(31, 87, 231, 0.12);
}

.info-card h4 {
  margin: 0 0 8px;
  font-size: 18px;
  color: var(--navy);
}

.info-card p,
.info-card li {
  color: var(--muted);
  font-size: 14px;
  line-height: 1.65;
}

.info-card ul {
  margin: 0;
  padding-left: 18px;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.metric {
  padding: 14px;
  border-radius: 16px;
  background: var(--panel-soft);
  border: 1px solid rgba(15, 34, 60, 0.08);
}

.metric strong {
  display: block;
  color: var(--navy);
  font-size: 22px;
}

.metric span {
  color: var(--muted);
  font-size: 12px;
}

.code-box {
  margin-top: 14px;
  padding: 16px;
  border-radius: 16px;
  background: #08182c;
  color: #d7e9ff;
  font-family: var(--mono);
  font-size: 14px;
  overflow-x: auto;
}

.ghs-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.ghs-button {
  padding: 16px;
  border: 1px solid var(--border);
  border-radius: 18px;
  background: #fff;
  cursor: pointer;
  text-align: left;
  transition: 0.2s ease;
}

.ghs-button:hover,
.ghs-button.active {
  border-color: rgba(31, 87, 231, 0.3);
  background: #eef5ff;
}

.ghs-button strong {
  display: block;
  margin-bottom: 4px;
}

.ghs-button span {
  color: var(--muted);
  font-size: 12px;
  line-height: 1.5;
}

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

.reference-card {
  padding: 24px;
  border-radius: 24px;
  background: linear-gradient(180deg, #ffffff, #f7faff);
  border: 1px solid var(--border);
  box-shadow: 0 18px 44px rgba(7, 20, 39, 0.08);
}

.reference-card h3 {
  margin: 0 0 8px;
  font-size: 22px;
}

.reference-card p {
  margin: 0 0 18px;
  color: var(--muted);
  line-height: 1.7;
}

.cta-band {
  margin-top: 26px;
  padding: 30px;
  border-radius: 28px;
  background: linear-gradient(135deg, #081b30 0%, #113161 55%, #0d816c 100%);
  color: #fff;
  box-shadow: 0 28px 70px rgba(7, 20, 39, 0.22);
}

.cta-band h2 {
  margin: 0 0 10px;
  font-size: clamp(28px, 4vw, 42px);
  line-height: 1.05;
}

.cta-band p {
  margin: 0 0 20px;
  max-width: 760px;
  color: rgba(255, 255, 255, 0.74);
  line-height: 1.75;
}

.site-footer {
  padding: 32px 0 48px;
  color: var(--muted);
  font-size: 14px;
}

.site-footer .container {
  display: flex;
  justify-content: space-between;
  gap: 20px;
  flex-wrap: wrap;
}

.muted-link {
  color: var(--navy);
  font-weight: 700;
}

@media (max-width: 1080px) {
  .tool-tabs,
  .reference-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

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

@media (max-width: 760px) {
  .container {
    width: min(100% - 28px, 1180px);
  }

  .site-header .container,
  .site-footer .container {
    flex-direction: column;
    align-items: flex-start;
  }

  .tool-tabs,
  .reference-grid,
  .ghs-grid,
  .grid-2,
  .grid-3,
  .metric-grid,
  .stats {
    grid-template-columns: 1fr;
  }

  .hero {
    padding-top: 54px;
  }

  .hero-copy::before {
    inset: -18px -14px -24px -14px;
  }

  .card,
  .hero-card,
  .reference-card,
  .cta-band {
    padding: 22px;
  }
}