:root {
  --navy-950: #102347;
  --navy-900: #163461;
  --navy-800: #234d88;
  --cyan-500: #4bc0e8;
  --sky-300: #9dddff;
  --rose-400: #ff7d9c;
  --lime-400: #73d49a;
  --amber-300: #ffd479;
  --surface: rgba(255, 255, 255, 0.88);
  --surface-strong: #ffffff;
  --line: rgba(16, 35, 71, 0.12);
  --text: #15233f;
  --muted: #53627f;
  --shadow: 0 22px 60px rgba(16, 35, 71, 0.16);
  --shadow-soft: 0 14px 32px rgba(16, 35, 71, 0.1);
  --radius-xl: 30px;
  --radius-lg: 22px;
  --radius-md: 16px;
  --radius-sm: 12px;
  --transition: 180ms ease;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--text);
  font-family: "IBM Plex Sans", system-ui, sans-serif;
  line-height: 1.55;
  background:
    radial-gradient(circle at 15% 15%, rgba(155, 221, 255, 0.7), transparent 28%),
    radial-gradient(circle at 85% 10%, rgba(255, 125, 156, 0.18), transparent 24%),
    radial-gradient(circle at 50% 100%, rgba(75, 192, 232, 0.2), transparent 26%),
    linear-gradient(180deg, #edf6ff 0%, #f7fbff 42%, #f2f7ff 100%);
  min-height: 100vh;
}

img,
svg {
  display: block;
  max-width: 100%;
}

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

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

:focus-visible {
  outline: 3px solid rgba(75, 192, 232, 0.5);
  outline-offset: 2px;
}

.site-header,
main,
.site-footer {
  width: min(1280px, calc(100% - 32px));
  margin: 0 auto;
}

.site-header {
  padding: 24px 0 28px;
}

.nav-shell {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 20px;
  padding: 14px 18px;
  border: 1px solid rgba(255, 255, 255, 0.6);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.7);
  box-shadow: var(--shadow-soft);
  backdrop-filter: blur(16px);
}

.brand {
  display: flex;
  align-items: center;
  gap: 14px;
}

.brand-mark {
  width: 46px;
  height: 46px;
  border-radius: 16px;
  display: grid;
  place-items: center;
  font-family: "Sora", sans-serif;
  font-weight: 800;
  color: white;
  background: linear-gradient(135deg, var(--navy-900), var(--cyan-500));
  box-shadow: 0 12px 28px rgba(35, 77, 136, 0.34);
}

.brand-copy {
  display: flex;
  flex-direction: column;
}

.brand-copy strong,
h1,
h2,
h3 {
  font-family: "Sora", sans-serif;
}

.brand-copy strong {
  font-size: 1rem;
}

.brand-copy span,
.top-nav a,
.section-intro,
.metric-card small,
.microcopy,
.message,
.ad-slot__desc,
.site-footer p,
.need-output,
.impact-output,
.faq-item p,
.prose-card p,
.tool-tile span,
.course-row span,
label span,
.summary-stack span {
  color: var(--muted);
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
}

.top-nav a {
  padding: 10px 14px;
  border-radius: 999px;
  transition: background var(--transition), color var(--transition), transform var(--transition);
}

.top-nav a:hover {
  background: rgba(16, 35, 71, 0.08);
  color: var(--navy-900);
  transform: translateY(-1px);
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.3fr) minmax(280px, 0.8fr);
  gap: 24px;
  margin-top: 24px;
  padding: 36px;
  border-radius: var(--radius-xl);
  background:
    linear-gradient(135deg, rgba(16, 35, 71, 0.94), rgba(35, 77, 136, 0.92)),
    linear-gradient(145deg, rgba(75, 192, 232, 0.35), rgba(255, 255, 255, 0));
  color: white;
  box-shadow: var(--shadow);
  overflow: hidden;
  position: relative;
}

.hero::after {
  content: "";
  position: absolute;
  inset: auto -50px -80px auto;
  width: 260px;
  height: 260px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(75, 192, 232, 0.32), transparent 70%);
}

.eyebrow,
.section-label {
  text-transform: uppercase;
  letter-spacing: 0.16em;
  font-weight: 700;
  font-size: 0.78rem;
}

.hero .eyebrow {
  color: var(--sky-300);
}

h1 {
  margin: 0.3rem 0 0.8rem;
  font-size: clamp(2.4rem, 5vw, 4.4rem);
  line-height: 1.05;
}

h2 {
  margin: 0.3rem 0 0.8rem;
  font-size: clamp(1.8rem, 3vw, 2.8rem);
  line-height: 1.1;
}

h3 {
  margin: 0;
  font-size: 1.1rem;
}

.hero-text {
  max-width: 62ch;
  font-size: 1.08rem;
  color: rgba(255, 255, 255, 0.82);
}

.hero-actions,
.toolbar,
.row-actions,
.ad-slot__actions,
.footer-links,
.tool-grid,
.trust-row,
.impact-controls,
.settings-grid,
.need-form {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
}

.button,
.ad-link,
.icon-button {
  border: 0;
  border-radius: 999px;
  padding: 12px 18px;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}

.button:hover,
.ad-link:hover,
.icon-button:hover {
  transform: translateY(-1px);
}

.button-primary {
  background: linear-gradient(135deg, var(--cyan-500), #67d7f0);
  color: var(--navy-950);
  box-shadow: 0 14px 28px rgba(75, 192, 232, 0.34);
}

.button-secondary {
  background: rgba(255, 255, 255, 0.14);
  color: white;
  border: 1px solid rgba(255, 255, 255, 0.2);
}

.button-ghost,
.icon-button {
  background: rgba(16, 35, 71, 0.06);
  color: var(--navy-900);
}

.trust-row {
  margin: 22px 0 0;
  padding: 0;
  list-style: none;
}

.trust-row li,
.hero-stat,
.metric-card,
.card,
.ad-slot__inner,
.tool-tile {
  background: var(--surface);
  border: 1px solid rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(16px);
}

.trust-row li {
  padding: 10px 14px;
  border-radius: 999px;
  color: rgba(255, 255, 255, 0.88);
  background: rgba(255, 255, 255, 0.12);
}

.hero-panel {
  display: grid;
  gap: 16px;
  align-content: start;
}

.hero-stat {
  padding: 18px;
  border-radius: var(--radius-lg);
  color: var(--navy-950);
}

.hero-stat span,
.metric-card span {
  display: block;
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

.hero-stat strong,
.metric-card strong {
  display: block;
  margin-top: 8px;
  font-size: 1.08rem;
  line-height: 1.35;
}

main {
  padding-bottom: 56px;
}

.ad-slot {
  margin: 18px 0 30px;
}

.ad-slot__inner {
  padding: 18px 20px;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.ad-slot__badge {
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(75, 192, 232, 0.14);
  color: var(--navy-900);
  font-weight: 700;
}

.ad-slot__title {
  margin: 0 0 4px;
  font-weight: 700;
}

.ad-link {
  background: white;
  box-shadow: var(--shadow-soft);
}

.workspace,
.analysis-grid,
.content-band,
.tool-links,
.faq-shell,
.planner-layout {
  margin-top: 30px;
}

.workspace-head,
.card-head,
.split-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
}

.workspace-grid,
.analysis-grid,
.planner-layout,
.content-band,
.faq-grid {
  display: grid;
  gap: 22px;
}

.workspace-grid {
  grid-template-columns: minmax(0, 1.5fr) minmax(280px, 0.7fr);
}

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

.planner-layout {
  grid-template-columns: minmax(0, 1.4fr) minmax(280px, 0.6fr);
}

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

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

.card {
  border-radius: var(--radius-lg);
  padding: 22px;
  box-shadow: var(--shadow-soft);
}

.card-main {
  padding: 24px;
}

.summary-stack {
  display: grid;
  gap: 16px;
  align-content: start;
}

.metric-card strong {
  font-size: clamp(2rem, 4vw, 3rem);
  color: var(--navy-950);
}

.metric-card.emphasis {
  background: linear-gradient(135deg, rgba(75, 192, 232, 0.2), rgba(255, 255, 255, 0.92));
}

.delta-card strong.positive,
.impact-output .positive,
.need-output .positive {
  color: #138a52;
}

.delta-card strong.negative,
.impact-output .negative,
.need-output .negative {
  color: #b23b56;
}

.settings-grid {
  margin: 18px 0 16px;
}

.settings-grid label,
.need-form label,
.course-row label,
.impact-controls label {
  display: grid;
  gap: 8px;
}

.settings-grid label,
.need-form label,
.impact-controls label {
  flex: 1 1 180px;
}

input,
select {
  width: 100%;
  padding: 12px 14px;
  border-radius: 14px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.92);
  color: var(--text);
}

input:invalid {
  box-shadow: none;
}

.custom-scale {
  margin-bottom: 16px;
  padding: 18px;
  border-radius: var(--radius-md);
  background: rgba(16, 35, 71, 0.04);
}

.custom-scale-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(110px, 1fr));
  gap: 12px;
}

.table-shell {
  display: grid;
  gap: 12px;
}

.course-row {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(120px, 0.8fr) minmax(110px, 0.7fr) minmax(140px, 0.9fr) auto;
  gap: 12px;
  align-items: end;
  padding: 14px;
  border-radius: 18px;
  background: rgba(16, 35, 71, 0.04);
}

.message {
  min-height: 1.2rem;
  margin-top: 10px;
}

.message.error {
  color: #b23b56;
}

.message.success {
  color: #138a52;
}

.impact-output,
.need-output {
  margin-top: 14px;
  padding: 16px 18px;
  border-radius: 18px;
  background: rgba(16, 35, 71, 0.04);
}

.breakdown-chart {
  display: grid;
  gap: 12px;
}

.breakdown-item {
  display: grid;
  gap: 8px;
}

.breakdown-label {
  display: flex;
  justify-content: space-between;
  gap: 16px;
  font-weight: 600;
}

.breakdown-bar {
  overflow: hidden;
  border-radius: 999px;
  background: rgba(16, 35, 71, 0.08);
  height: 14px;
}

.breakdown-fill {
  height: 100%;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--navy-900), var(--cyan-500));
}

.suggestion-list {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 12px;
}

.suggestion-list li {
  padding: 14px 16px;
  border-radius: 18px;
  background: rgba(16, 35, 71, 0.05);
}

.suggestion-list strong {
  display: block;
}

.prose-card,
.faq-item,
.tool-tile {
  height: 100%;
}

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

.tool-tile {
  padding: 18px;
  border-radius: 18px;
  box-shadow: var(--shadow-soft);
}

.tool-tile strong {
  display: block;
  margin-bottom: 8px;
}

.faq-item summary {
  cursor: pointer;
  font-family: "Sora", sans-serif;
  font-weight: 700;
}

.faq-item p {
  margin-top: 12px;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  padding: 0 0 42px;
}

.footer-links {
  align-items: center;
}

@media (max-width: 1080px) {
  .workspace-grid,
  .planner-layout,
  .analysis-grid,
  .content-band,
  .faq-grid,
  .tool-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 820px) {
  .nav-shell,
  .workspace-head,
  .card-head,
  .split-head,
  .site-footer {
    flex-direction: column;
    align-items: flex-start;
  }

  .course-row {
    grid-template-columns: 1fr;
  }

  .site-header,
  main,
  .site-footer {
    width: min(1280px, calc(100% - 20px));
  }

  .hero,
  .card,
  .card-main {
    padding: 20px;
  }
}

@media (max-width: 560px) {
  .top-nav {
    gap: 6px;
  }

  .top-nav a,
  .button,
  .ad-link,
  .icon-button {
    width: 100%;
    justify-content: center;
    text-align: center;
  }

  .brand {
    width: 100%;
  }

  .metric-card strong {
    font-size: 2.2rem;
  }
}