:root {
  color-scheme: light dark;

  --bg: #f5f6f8;
  --surface: #ffffff;
  --surface-muted: #f0f2f5;

  --text: #17191d;
  --muted: #6b7280;

  --border: #dde1e7;

  --accent: #1d5f4a;
  --accent-strong: #164c3b;
  --accent-soft: #e2f0eb;
  --accent-border: #b8d4ca;

  --pending: #7a6540;
  --pending-soft: #f4efe4;
  --pending-border: #ddd1b7;

  --shadow: 0 8px 28px rgba(10, 18, 28, 0.06);
  --shadow-hover: 0 16px 42px rgba(10, 18, 28, 0.09);
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #101214;
    --surface: #181b1f;
    --surface-muted: #22262b;

    --text: #f3f4f6;
    --muted: #a8afb9;

    --border: #30353c;

    --accent: #72c9aa;
    --accent-strong: #84d8ba;
    --accent-soft: #19372e;
    --accent-border: #315e50;

    --pending: #dcc690;
    --pending-soft: #332d20;
    --pending-border: #554a32;

    --shadow: none;
    --shadow-hover: none;
  }
}

* {
  box-sizing: border-box;
}

html {
  min-height: 100%;
}

body {
  min-height: 100%;
  margin: 0;

  background:
    radial-gradient(
      circle at top right,
      rgba(29, 95, 74, 0.05),
      transparent 32rem
    ),
    var(--bg);

  color: var(--text);

  font-family:
    Inter,
    ui-sans-serif,
    system-ui,
    -apple-system,
    BlinkMacSystemFont,
    "Segoe UI",
    sans-serif;
}

button,
a {
  font: inherit;
}

a {
  color: inherit;
}

.shell {
  width: min(1240px, calc(100% - 32px));
  margin: 0 auto;
  padding: 32px 0 40px;
}

/* =========================================================
   PRIVATE AREA TOOLBAR
   ========================================================= */

.private-toolbar {
  min-height: 52px;
  margin-bottom: 72px;
  padding-bottom: 18px;

  border-bottom: 1px solid var(--border);

  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
}

.portfolio-link {
  display: inline-flex;
  align-items: center;
  gap: 9px;

  color: var(--muted);

  font-size: 14px;
  font-weight: 600;

  text-decoration: none;

  transition:
    color 160ms ease,
    transform 160ms ease;
}

.portfolio-link:hover {
  color: var(--text);
  transform: translateX(-2px);
}

.portfolio-link:focus-visible {
  outline: 3px solid var(--accent-soft);
  outline-offset: 5px;
  border-radius: 4px;
}

.private-badge {
  min-height: 32px;
  padding: 6px 12px;

  border: 1px solid var(--accent-border);
  border-radius: 999px;

  background: var(--accent-soft);
  color: var(--accent);

  display: inline-flex;
  align-items: center;
  gap: 8px;

  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.025em;
}

.private-badge__icon {
  font-size: 8px;
}

/* =========================================================
   HEADER
   ========================================================= */

.page-header {
  max-width: 820px;
}

.eyebrow {
  margin: 0 0 12px;

  color: var(--accent);

  font-size: 13px;
  font-weight: 750;
  letter-spacing: 0.09em;

  text-transform: uppercase;
}

h1 {
  margin: 0;

  font-size: clamp(46px, 7vw, 76px);
  line-height: 1;
  letter-spacing: -0.055em;
}

.intro {
  max-width: 720px;
  margin: 26px 0 0;

  color: var(--muted);

  font-size: 19px;
  line-height: 1.65;
}

/* =========================================================
   MODULES
   ========================================================= */

.modules {
  margin-top: 84px;
}

.section-heading {
  margin-bottom: 24px;

  display: flex;
  align-items: end;
  justify-content: space-between;
  gap: 32px;
}

.section-kicker {
  margin: 0 0 6px;

  color: var(--accent);

  font-size: 11px;
  font-weight: 750;
  letter-spacing: 0.09em;

  text-transform: uppercase;
}

.section-title {
  margin: 0;

  color: var(--text);

  font-size: 18px;
  font-weight: 700;
  letter-spacing: -0.015em;

  text-transform: none;
}

.section-description {
  max-width: 420px;
  margin: 0;

  color: var(--muted);

  font-size: 14px;
  line-height: 1.5;
  text-align: right;
}

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

.module-card {
  min-height: 330px;
  padding: 28px;

  border: 1px solid var(--border);
  border-radius: 20px;

  background: var(--surface);
  box-shadow: var(--shadow);

  display: flex;
  flex-direction: column;

  transition:
    border-color 180ms ease,
    box-shadow 180ms ease,
    transform 180ms ease;
}

.module-card:hover {
  transform: translateY(-2px);
  box-shadow: var(--shadow-hover);
}

.module-card--available {
  border-color: var(--accent-border);
}

.module-card--pending {
  background: linear-gradient(var(--surface), var(--surface)) padding-box;
}

.module-card__header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.module-icon {
  width: 50px;
  height: 50px;

  border-radius: 14px;

  display: inline-flex;
  align-items: center;
  justify-content: center;

  background: var(--surface-muted);
  color: var(--text);

  font-size: 22px;
  font-weight: 700;
}

.module-card--available .module-icon {
  background: var(--accent-soft);
  color: var(--accent);
}

.module-card--pending .module-icon {
  background: var(--pending-soft);
  color: var(--pending);
}

.status {
  min-height: 28px;
  padding: 5px 10px;

  border: 1px solid;
  border-radius: 999px;

  display: inline-flex;
  align-items: center;

  font-size: 12px;
  font-weight: 650;
}

.status--available {
  border-color: var(--accent-border);
  background: var(--accent-soft);
  color: var(--accent);
}

.status--pending {
  border-color: var(--pending-border);
  background: var(--pending-soft);
  color: var(--pending);
}

.module-card__content {
  margin-top: 42px;
}

.module-card h3 {
  margin: 0;

  font-size: 31px;
  line-height: 1.15;
  letter-spacing: -0.035em;
}

.module-card p {
  max-width: 48ch;
  margin: 16px 0 0;

  color: var(--muted);

  font-size: 16px;
  line-height: 1.65;
}

.module-action {
  width: 100%;
  min-height: 52px;

  margin-top: auto;
  padding: 13px 17px;

  border: 0;
  border-radius: 12px;

  background: var(--accent);
  color: #ffffff;

  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;

  font-weight: 650;
  text-decoration: none;

  cursor: pointer;

  transition:
    background 160ms ease,
    transform 160ms ease;
}

.module-action:hover {
  background: var(--accent-strong);
  transform: translateY(-1px);
}

.module-action:focus-visible {
  outline: 3px solid var(--accent-soft);
  outline-offset: 3px;
}

.module-action--disabled {
  background: var(--surface-muted);
  color: var(--muted);

  justify-content: center;

  cursor: not-allowed;
}

.module-action--disabled:hover {
  background: var(--surface-muted);
  transform: none;
}

/* =========================================================
   FOOTER
   ========================================================= */

.page-footer {
  margin-top: 64px;
  padding-top: 24px;

  border-top: 1px solid var(--border);

  color: var(--muted);

  font-size: 13px;
}

.page-footer__content {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 32px;
}

.page-footer strong {
  color: var(--text);
  font-size: 13px;
}

.page-footer p {
  margin: 5px 0 0;
  line-height: 1.5;
}

.page-footer__source {
  max-width: 420px;
  text-align: right;
}

/* =========================================================
   RESPONSIVE
   ========================================================= */

@media (max-width: 900px) {
  .private-toolbar {
    margin-bottom: 56px;
  }

  .modules {
    margin-top: 64px;
  }

  .section-heading {
    align-items: flex-start;
    flex-direction: column;
    gap: 10px;
  }

  .section-description {
    max-width: 600px;
    text-align: left;
  }
}

@media (max-width: 760px) {
  .shell {
    padding-top: 24px;
  }

  .private-toolbar {
    margin-bottom: 48px;
  }

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

  .module-card {
    min-height: 300px;
  }

  .page-footer__content {
    flex-direction: column;
    gap: 14px;
  }

  .page-footer__source {
    max-width: none;
    text-align: left;
  }
}

@media (max-width: 480px) {
  .shell {
    width: min(calc(100% - 20px), 1240px);
    padding-top: 18px;
  }

  .private-toolbar {
    margin-bottom: 38px;
    gap: 12px;
  }

  .portfolio-link {
    font-size: 13px;
  }

  .private-badge {
    padding: 5px 9px;
    font-size: 11px;
  }

  h1 {
    font-size: 44px;
  }

  .intro {
    margin-top: 20px;
    font-size: 16px;
  }

  .modules {
    margin-top: 52px;
  }

  .module-card {
    padding: 21px;
    border-radius: 16px;
  }

  .module-card__content {
    margin-top: 32px;
  }

  .module-card h3 {
    font-size: 27px;
  }

  .module-card p {
    font-size: 15px;
  }
}