/* =============================================================================
   RADLE Learning Launchpad — Design System
   Premium, vibrant-blue, accessible static site styles.
   ========================================================================== */

/* ----------------------------------------------------------------------------
   1. Design tokens
   -------------------------------------------------------------------------- */
:root {
  /* Core blue palette */
  --navy-950: #04133f;
  --navy-900: #071e63;
  --royal-700: #0b42d6;
  --royal-600: #0b5cff;
  --azure-500: #168cff;
  --cyan-400: #20c4f4;
  --cyan-200: #9fe9ff;
  --sky-100: #e5f7ff;
  --sky-50: #f5fbff;
  --ink: #0b1938;
  --muted: #51627f;
  --white: #ffffff;

  /* Functional colors */
  --line: #d7e6f5;
  --line-strong: #b9d3ee;
  --focus: #ffcf3f;

  /* Gradients */
  --grad-primary: linear-gradient(
    135deg,
    #04133f 0%,
    #0b42d6 46%,
    #168cff 73%,
    #20c4f4 100%
  );
  --grad-support: linear-gradient(
    135deg,
    #e5f7ff 0%,
    #ffffff 55%,
    #eef4ff 100%
  );
  --grad-action: linear-gradient(135deg, #0b5cff 0%, #168cff 100%);

  /* Typography */
  --font-body: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif;
  --font-head: ui-rounded, "Avenir Next", "Trebuchet MS", "Segoe UI",
    sans-serif;

  /* Fluid type scale */
  --fs-base: clamp(1.06rem, 1rem + 0.35vw, 1.2rem); /* ~17–19px body text */
  --fs-lead: clamp(1.2rem, 1.08rem + 0.6vw, 1.45rem);
  --fs-h4: clamp(1.25rem, 1.1rem + 0.55vw, 1.55rem);
  --fs-h3: clamp(1.5rem, 1.25rem + 1.1vw, 2.05rem);
  --fs-h2: clamp(2rem, 1.5rem + 2vw, 3rem);
  --fs-h1: clamp(2.7rem, 1.9rem + 4vw, 4.8rem);

  /* Spacing */
  --space-1: 0.35rem;
  --space-2: 0.65rem;
  --space-3: 1rem;
  --space-4: 1.5rem;
  --space-5: 2.25rem;
  --space-6: 3rem;
  --space-7: 4rem;
  --space-8: 5rem;

  /* Radius */
  --radius-btn: 14px;
  --radius-card: 20px;
  --radius-lg: 24px;

  /* Shadows (soft blue) */
  --shadow-sm: 0 2px 8px rgba(11, 66, 214, 0.08);
  --shadow-md: 0 12px 30px rgba(7, 30, 99, 0.12);
  --shadow-lg: 0 26px 60px rgba(4, 19, 63, 0.22);

  --container: 1200px;
  --measure: 74ch; /* long-form reading measure ≈ 720–780px */
  --header-h: 128px;
}

/* ----------------------------------------------------------------------------
   2. Reset & base
   -------------------------------------------------------------------------- */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: calc(var(--header-h) + 12px);
  -webkit-text-size-adjust: 100%;
}

body {
  margin: 0;
  font-family: var(--font-body);
  font-size: var(--fs-base);
  line-height: 1.62;
  color: var(--ink);
  background: var(--sky-50);
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
}

h1,
h2,
h3,
h4 {
  font-family: var(--font-head);
  line-height: 1.12;
  color: var(--navy-950);
  margin: 0 0 var(--space-3);
  letter-spacing: -0.01em;
  text-wrap: balance;
}

h1 {
  font-size: var(--fs-h1);
}
h2 {
  font-size: var(--fs-h2);
}
h3 {
  font-size: var(--fs-h3);
}
h4 {
  font-size: var(--fs-h4);
}

p {
  margin: 0 0 var(--space-3);
}

a {
  color: var(--royal-600);
  text-underline-offset: 3px;
}
a:hover {
  color: var(--royal-700);
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

ul,
ol {
  padding-left: 1.35em;
}

li {
  margin-bottom: 0.4em;
}

strong {
  color: var(--navy-900);
}

/* ----------------------------------------------------------------------------
   3. Accessibility helpers
   -------------------------------------------------------------------------- */
.skip-link {
  position: absolute;
  left: 16px;
  top: -60px;
  z-index: 200;
  background: var(--white);
  color: var(--navy-900);
  padding: 0.75rem 1.25rem;
  border-radius: 0 0 var(--radius-btn) var(--radius-btn);
  font-weight: 700;
  box-shadow: var(--shadow-md);
  transition: top 0.2s ease;
}
.skip-link:focus {
  top: 0;
}

:focus-visible {
  outline: 3px solid var(--focus);
  outline-offset: 3px;
  border-radius: 6px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

/* ----------------------------------------------------------------------------
   4. Layout primitives
   -------------------------------------------------------------------------- */
.container {
  width: 100%;
  max-width: var(--container);
  margin-inline: auto;
  padding-inline: clamp(1.1rem, 4vw, 2.5rem);
}

.section {
  padding-block: var(--space-7);
}
.section--tight {
  padding-block: var(--space-6);
}
.section--sky {
  background: var(--sky-50);
}
.section--panel {
  background: var(--grad-support);
}
.section--deep {
  background: var(--grad-primary);
  color: var(--sky-100);
}
.section--deep h2,
.section--deep h3 {
  color: var(--white);
}

.section-head {
  max-width: 74ch;
  margin-bottom: var(--space-5);
}
.section-head--center {
  margin-inline: auto;
  text-align: center;
}

.eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--royal-600);
  margin-bottom: var(--space-2);
}
.section--deep .eyebrow {
  color: var(--cyan-200);
}
.eyebrow::before {
  content: "";
  width: 26px;
  height: 3px;
  border-radius: 3px;
  background: var(--grad-action);
}
.section--deep .eyebrow::before {
  background: var(--cyan-400);
}

/* Blue-gradient hero eyebrows (homepage + inner pages): one shared rule so
   typography is identical everywhere. Base .eyebrow royal-blue is for
   light-background sections only. */
.hero .eyebrow,
.page-hero .eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  font-family: var(--font-head);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.09em;
  text-transform: uppercase;
  color: var(--cyan-200);
  margin-bottom: var(--space-2);
}
.hero .eyebrow::before,
.page-hero .eyebrow::before {
  content: "";
  width: 26px;
  height: 3px;
  border-radius: 3px;
  background: var(--cyan-400);
}
/* Homepage-only: larger brand label for stronger hierarchy above the oversized H1.
   Inner-page .page-hero eyebrows keep the shared 0.95rem / 700 sizing above. */
.hero .eyebrow {
  font-size: clamp(1.1rem, 1.35vw, 1.3rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  white-space: nowrap;
}
.hero .eyebrow::before {
  width: 32px;
  height: 3.5px;
}
@media (max-width: 640px) {
  .hero .eyebrow {
    white-space: normal;
  }
}

.lead {
  font-size: var(--fs-lead);
  color: var(--muted);
}
.section--deep .lead {
  color: var(--cyan-200);
}

/* Grids */
.grid {
  display: grid;
  gap: var(--space-4);
}
.grid-2 {
  grid-template-columns: repeat(2, 1fr);
}
.grid-3 {
  grid-template-columns: repeat(3, 1fr);
}
.grid-4 {
  grid-template-columns: repeat(4, 1fr);
}

/* ----------------------------------------------------------------------------
   5. Buttons
   -------------------------------------------------------------------------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 50px;
  padding: 0.85rem 1.7rem;
  font-family: var(--font-head);
  font-size: 1.1rem;
  font-weight: 700;
  line-height: 1.1;
  text-decoration: none;
  border: 2px solid transparent;
  border-radius: var(--radius-btn);
  cursor: pointer;
  transition: transform 0.18s ease, box-shadow 0.18s ease,
    background-color 0.18s ease, color 0.18s ease, border-color 0.18s ease;
  text-align: center;
}
.btn .arrow {
  transition: transform 0.18s ease;
}
.btn:hover .arrow {
  transform: translateX(4px);
}

.btn-primary {
  background: var(--grad-action);
  color: var(--white);
  box-shadow: var(--shadow-md);
}
.btn-primary:hover {
  color: var(--white);
  transform: translateY(-2px);
  box-shadow: var(--shadow-lg);
}

.btn-secondary {
  background: var(--white);
  color: var(--royal-700);
  border-color: var(--line-strong);
}
.btn-secondary:hover {
  color: var(--royal-700);
  border-color: var(--royal-600);
  transform: translateY(-2px);
  box-shadow: var(--shadow-sm);
}

.btn-ghost {
  background: rgba(255, 255, 255, 0.12);
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.5);
}
.btn-ghost:hover {
  background: rgba(255, 255, 255, 0.2);
  color: var(--white);
  border-color: var(--white);
}

.btn--full {
  width: 100%;
}

/* External link marker */
.btn[target="_blank"] .ext,
a[target="_blank"] .ext {
  font-size: 0.85em;
}

.btn-row {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.btn-row--center {
  justify-content: center;
}

/* ----------------------------------------------------------------------------
   6. Header & navigation
   -------------------------------------------------------------------------- */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--grad-primary);
  box-shadow: 0 6px 24px rgba(4, 19, 63, 0.28);
  transition: padding 0.25s ease;
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-4);
  min-height: var(--header-h);
  padding-block: 0.625rem;
  transition: min-height 0.25s ease, padding-block 0.25s ease;
}
.site-header.is-compact .header-inner {
  min-height: 68px;
  padding-block: 0.5rem;
}

.brand {
  display: inline-flex;
  align-items: center;
  flex-shrink: 0;
  border-radius: 16px;
}
/* Transparent logo on the blue header — no white card.
   The PNG is 1920├ù1080 with centered artwork ≈854├ù382 (aspect 2.236).
   --logo-h sets the visible artwork height; the image is scaled to
   height = --logo-h × (1080/382) so the artwork fills the window; flex
   centers it and overflow:hidden trims transparent margins. */
.logo-panel {
  --logo-h: 108px;
  --logo-art-aspect: 2.236; /* 854 ├╖ 382 */
  --logo-canvas-scale: 2.827; /* 1080 ├╖ 382 */
  display: flex;
  align-items: center;
  justify-content: center;
  height: var(--logo-h);
  width: calc(var(--logo-h) * var(--logo-art-aspect));
  overflow: hidden;
  background: transparent;
  padding: 0;
  border: 0;
  border-radius: 0;
  box-shadow: none;
  flex-shrink: 0;
  transition: height 0.25s ease, width 0.25s ease, transform 0.25s ease;
}
.brand:hover .logo-panel {
  transform: translateY(-1px);
}
.logo-panel img {
  height: calc(var(--logo-h) * var(--logo-canvas-scale));
  width: auto;
  max-width: none;
  display: block;
  flex-shrink: 0;
  object-fit: contain;
  transition: height 0.25s ease;
}
.site-header.is-compact .logo-panel {
  /* Compact row is 68px ΓêÆ 2├ù0.5rem padding ≈ 52px usable. */
  --logo-h: 52px;
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  background: rgba(255, 255, 255, 0.14);
  border: 2px solid rgba(255, 255, 255, 0.4);
  border-radius: 12px;
  color: var(--white);
  cursor: pointer;
}
.nav-toggle .bars,
.nav-toggle .bars::before,
.nav-toggle .bars::after {
  content: "";
  display: block;
  width: 22px;
  height: 2.5px;
  background: var(--white);
  border-radius: 3px;
  position: relative;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.nav-toggle .bars::before {
  position: absolute;
  top: -7px;
}
.nav-toggle .bars::after {
  position: absolute;
  top: 7px;
}
.nav-toggle[aria-expanded="true"] .bars {
  background: transparent;
}
.nav-toggle[aria-expanded="true"] .bars::before {
  transform: translateY(7px) rotate(45deg);
}
.nav-toggle[aria-expanded="true"] .bars::after {
  transform: translateY(-7px) rotate(-45deg);
}

.nav-menu {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  list-style: none;
  margin: 0;
  padding: 0;
}
.nav-menu li {
  margin: 0;
}
.nav-menu a:not(.btn) {
  display: inline-block;
  padding: 0.65rem 0.95rem;
  color: var(--sky-100);
  font-family: var(--font-head);
  font-weight: 600;
  font-size: 1.08rem;
  text-decoration: none;
  border-radius: 10px;
  transition: background-color 0.18s ease, color 0.18s ease;
}
.nav-menu a:not(.btn):hover {
  background: rgba(255, 255, 255, 0.14);
  color: var(--white);
}
.nav-menu a[aria-current="page"] {
  color: var(--white);
  background: rgba(255, 255, 255, 0.18);
}
.nav-cta {
  margin-left: var(--space-2);
}

/* ----------------------------------------------------------------------------
   7. Hero
   -------------------------------------------------------------------------- */
.hero {
  position: relative;
  background: var(--grad-primary);
  color: var(--white);
  overflow: hidden;
  padding-block: var(--space-7) var(--space-7);
}
.hero__inner {
  position: relative;
  z-index: 2;
  display: grid;
  grid-template-columns: 1.25fr 0.75fr;
  gap: clamp(2rem, 5vw, 5rem);
  align-items: center;
}
.hero__content {
  max-width: 34rem;
}
.hero h1 {
  color: var(--white);
  margin-bottom: var(--space-4);
}
.hero__lead {
  font-size: var(--fs-lead);
  color: var(--cyan-200);
  margin-bottom: var(--space-5);
  max-width: 42ch;
}
.hero .btn-row {
  margin-bottom: var(--space-5);
}

.trust-markers {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2);
  list-style: none;
  padding: 0;
  margin: 0;
}
.trust-markers li {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  margin: 0;
  padding: 0.6rem 1.05rem;
  font-size: 1.02rem;
  font-weight: 600;
  color: var(--white);
  background: rgba(255, 255, 255, 0.1);
  border: 1px solid rgba(255, 255, 255, 0.24);
  border-radius: 999px;
}
.trust-markers svg {
  flex-shrink: 0;
  color: var(--cyan-200);
}

/* Hero decorative art (CSS/SVG only) */
.hero__art {
  position: relative;
  z-index: 2;
  aspect-ratio: 1 / 1;
  max-width: 460px;
  margin-inline: auto;
}
.hero__art .orbit {
  position: absolute;
  inset: 0;
  border-radius: 50%;
  border: 1.5px solid rgba(159, 233, 255, 0.35);
}
.hero__art .orbit--2 {
  inset: 14%;
  border-style: dashed;
  border-color: rgba(159, 233, 255, 0.25);
}
.hero__art .orbit--3 {
  inset: 28%;
  border-color: rgba(159, 233, 255, 0.18);
}
.hero__art .glow {
  position: absolute;
  inset: 20%;
  border-radius: 50%;
  background: radial-gradient(
    circle at 50% 45%,
    rgba(32, 196, 244, 0.55),
    rgba(11, 92, 255, 0.15) 55%,
    transparent 72%
  );
  filter: blur(2px);
}
.hero__art .launch-badge {
  position: absolute;
  inset: 30%;
  display: grid;
  place-items: center;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  backdrop-filter: blur(2px);
}
.hero__art .launch-badge svg {
  width: 46%;
  height: auto;
  color: var(--white);
}
.hero__art .spark {
  position: absolute;
  color: var(--cyan-200);
}
.hero__art .spark--a {
  top: 6%;
  left: 40%;
  width: 26px;
}
.hero__art .spark--b {
  top: 22%;
  right: 6%;
  width: 18px;
}
.hero__art .spark--c {
  bottom: 12%;
  left: 8%;
  width: 22px;
}

/* Background decorative shapes for hero */
.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
  overflow: hidden;
}
.hero__bg .arc {
  position: absolute;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.08);
}
.hero__bg .arc--1 {
  width: 720px;
  height: 720px;
  right: -220px;
  top: -280px;
}
.hero__bg .arc--2 {
  width: 520px;
  height: 520px;
  left: -200px;
  bottom: -240px;
  border-color: rgba(32, 196, 244, 0.14);
}
.hero__bg .dot {
  position: absolute;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: var(--cyan-200);
  opacity: 0.55;
}
.hero__bg .dot:nth-child(3) {
  top: 24%;
  left: 12%;
}
.hero__bg .dot:nth-child(4) {
  top: 70%;
  left: 46%;
  width: 6px;
  height: 6px;
}
.hero__bg .dot:nth-child(5) {
  top: 40%;
  right: 30%;
  width: 5px;
  height: 5px;
}

/* Small page hero for interior pages */
.page-hero {
  position: relative;
  background: var(--grad-primary);
  color: var(--white);
  overflow: hidden;
  padding-block: var(--space-7) var(--space-6);
}
.page-hero__inner {
  position: relative;
  z-index: 2;
  max-width: 70ch;
}
.page-hero h1 {
  color: var(--white);
}
.page-hero p {
  color: var(--cyan-200);
  font-size: var(--fs-lead);
  margin-bottom: 0;
}

/* ----------------------------------------------------------------------------
   8. Cards
   -------------------------------------------------------------------------- */
.card {
  position: relative;
  display: flex;
  flex-direction: column;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: var(--space-5);
  box-shadow: var(--shadow-sm);
  transition: transform 0.2s ease, box-shadow 0.2s ease,
    border-color 0.2s ease;
  height: 100%;
}
.card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
  border-color: var(--line-strong);
}
.card h3 {
  margin-bottom: var(--space-2);
}
.card p {
  color: var(--muted);
  margin-bottom: var(--space-3);
}
.card p:last-child {
  margin-bottom: 0;
}
.card__foot {
  margin-top: auto;
  padding-top: var(--space-2);
}
.card--top {
  border-top: 4px solid transparent;
  border-image: var(--grad-action) 1;
}

.card-icon {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 16px;
  background: var(--sky-100);
  color: var(--royal-600);
  margin-bottom: var(--space-3);
}
.card-icon svg {
  width: 28px;
  height: 28px;
}

.tag {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-head);
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.03em;
  color: var(--royal-700);
  background: var(--sky-100);
  padding: 0.3rem 0.7rem;
  border-radius: 999px;
}
.tag--muted {
  color: var(--muted);
  background: #eef3fa;
}

.link-arrow {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-family: var(--font-head);
  font-weight: 700;
  text-decoration: none;
}
.link-arrow .arrow {
  transition: transform 0.18s ease;
}
.link-arrow:hover .arrow {
  transform: translateX(4px);
}

/* Ideal learner line inside program cards */
.card__meta {
  font-size: 0.98rem;
  color: var(--navy-900);
  background: var(--sky-50);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0.6rem 0.85rem;
  margin-bottom: var(--space-3);
}
.card__meta strong {
  display: block;
  font-family: var(--font-head);
  font-size: 0.82rem;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  color: var(--royal-600);
  margin-bottom: 0.15rem;
}

/* ----------------------------------------------------------------------------
   9. Video / Meet Kimberly section
   -------------------------------------------------------------------------- */
.media-split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-6);
  align-items: center;
}
/* Feature variant gives the media a little more presence (e.g. Meet Kimberly). */
.media-split--feature {
  grid-template-columns: 1.08fr 0.92fr;
  gap: clamp(2rem, 4vw, 4.5rem);
}
.kimberly-portrait {
  position: relative;
  width: 100%;
  max-width: 460px;
  aspect-ratio: 4 / 5;
  justify-self: center;
  margin: 0;
  overflow: hidden;
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-lg);
  background: var(--sky-100);
}
.kimberly-portrait img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 35%;
}
.kimberly-portrait--about {
  margin-inline: auto;
}
.video-frame {
  position: relative;
  aspect-ratio: 16 / 9;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--grad-primary);
  box-shadow: var(--shadow-lg);
  display: grid;
  place-items: center;
  color: var(--white);
  text-align: center;
  padding: var(--space-4);
}
.video-frame video {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
}
.video-frame__placeholder {
  position: relative;
  z-index: 2;
}
.play-badge {
  display: inline-grid;
  place-items: center;
  width: 84px;
  height: 84px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.16);
  border: 2px solid rgba(255, 255, 255, 0.55);
  margin-bottom: var(--space-3);
}
.play-badge svg {
  width: 34px;
  height: 34px;
  color: var(--white);
  margin-left: 4px;
}
.video-frame__placeholder p {
  color: var(--cyan-200);
  margin: 0;
  font-weight: 600;
}
.caption-note {
  font-size: 0.95rem;
  color: var(--muted);
  margin-top: var(--space-3);
}

/* ----------------------------------------------------------------------------
   10. Steps / How it works
   -------------------------------------------------------------------------- */
.steps {
  counter-reset: step;
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--space-4);
  position: relative;
}
.step {
  position: relative;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: var(--space-4);
  box-shadow: var(--shadow-sm);
}
.step__num {
  counter-increment: step;
  display: inline-grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: var(--grad-action);
  color: var(--white);
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.3rem;
  margin-bottom: var(--space-3);
  box-shadow: var(--shadow-sm);
}
.step__num::before {
  content: counter(step);
}
.step h3 {
  font-size: 1.2rem;
  margin-bottom: var(--space-1);
}
.step p {
  color: var(--muted);
  font-size: 1.02rem;
  margin: 0;
}
/* trajectory line behind steps on desktop */
.steps::before {
  content: "";
  position: absolute;
  top: 52px;
  left: 12%;
  right: 12%;
  height: 3px;
  background: repeating-linear-gradient(
    90deg,
    var(--cyan-400) 0 14px,
    transparent 14px 26px
  );
  opacity: 0.5;
  z-index: 0;
}
.step {
  z-index: 1;
}

/* ----------------------------------------------------------------------------
   11. Benefit list (Why RADLE)
   -------------------------------------------------------------------------- */
.benefit {
  display: flex;
  gap: var(--space-3);
  align-items: flex-start;
}
.benefit__icon {
  flex-shrink: 0;
  display: inline-grid;
  place-items: center;
  width: 52px;
  height: 52px;
  border-radius: 14px;
  background: rgba(255, 255, 255, 0.12);
  border: 1px solid rgba(255, 255, 255, 0.25);
  color: var(--cyan-200);
}
.benefit__icon svg {
  width: 26px;
  height: 26px;
}
.benefit h3 {
  font-size: 1.25rem;
  margin-bottom: var(--space-1);
}
.benefit p {
  color: var(--cyan-200);
  margin: 0;
}

/* ----------------------------------------------------------------------------
   12. Resource list items
   -------------------------------------------------------------------------- */
.resource-card {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
}
.resource-card .meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  align-items: center;
}
.resource-card .read-time {
  font-size: 0.9rem;
  color: var(--muted);
  font-weight: 600;
}

/* ----------------------------------------------------------------------------
   13. Accordions (FAQ)
   -------------------------------------------------------------------------- */
.accordion {
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  background: var(--white);
  overflow: hidden;
  box-shadow: var(--shadow-sm);
}
.accordion + .accordion {
  margin-top: var(--space-3);
}
.accordion__trigger {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-3);
  text-align: left;
  background: transparent;
  border: 0;
  padding: 1.3rem 1.5rem;
  font-family: var(--font-head);
  font-size: 1.22rem;
  font-weight: 700;
  color: var(--navy-950);
  cursor: pointer;
  min-height: 62px;
}
.accordion__trigger:hover {
  background: var(--sky-50);
}
.accordion__icon {
  flex-shrink: 0;
  width: 26px;
  height: 26px;
  position: relative;
  color: var(--royal-600);
}
.accordion__icon::before,
.accordion__icon::after {
  content: "";
  position: absolute;
  background: currentColor;
  border-radius: 2px;
  transition: transform 0.2s ease, opacity 0.2s ease;
}
.accordion__icon::before {
  top: 12px;
  left: 3px;
  right: 3px;
  height: 2.5px;
}
.accordion__icon::after {
  left: 12px;
  top: 3px;
  bottom: 3px;
  width: 2.5px;
}
.accordion__trigger[aria-expanded="true"] .accordion__icon::after {
  transform: scaleY(0);
  opacity: 0;
}
.accordion__panel {
  padding: 0 1.5rem 1.4rem;
}
.accordion__panel p:last-child {
  margin-bottom: 0;
}
.accordion__panel .flag {
  display: inline-block;
  margin-top: 0.5rem;
  font-size: 0.9rem;
  font-weight: 700;
  color: var(--royal-700);
  background: var(--sky-100);
  padding: 0.25rem 0.6rem;
  border-radius: 8px;
}

/* ----------------------------------------------------------------------------
   14. Callout / notes
   -------------------------------------------------------------------------- */
.callout {
  border-radius: var(--radius-card);
  padding: var(--space-4);
  background: var(--sky-100);
  border: 1px solid var(--line-strong);
}
.callout--soft {
  background: var(--white);
  border: 1px dashed var(--line-strong);
}
.callout p:last-child {
  margin-bottom: 0;
}
.callout__title {
  font-family: var(--font-head);
  font-weight: 800;
  color: var(--navy-900);
  display: flex;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: var(--space-2);
}

.note-placeholder {
  display: inline-block;
  font-weight: 700;
  color: var(--royal-700);
  background: #fff6d8;
  border: 1px solid #f2dd8f;
  border-radius: 8px;
  padding: 0.1rem 0.45rem;
}

/* ----------------------------------------------------------------------------
   15. CTA band
   -------------------------------------------------------------------------- */
.cta-band {
  position: relative;
  overflow: hidden;
}
.cta-band .container {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 60ch;
}
.cta-band h2 {
  margin-bottom: var(--space-3);
}
.cta-band__deco {
  position: absolute;
  inset: 0;
  z-index: 1;
  pointer-events: none;
}
.cta-band__deco .arc {
  position: absolute;
  border-radius: 50%;
  border: 2px solid rgba(255, 255, 255, 0.1);
  width: 500px;
  height: 500px;
}
.cta-band__deco .arc--l {
  left: -240px;
  top: -180px;
}
.cta-band__deco .arc--r {
  right: -240px;
  bottom: -220px;
  border-color: rgba(32, 196, 244, 0.16);
}

/* ----------------------------------------------------------------------------
   16. Footer
   -------------------------------------------------------------------------- */
.site-footer {
  background: var(--navy-950);
  color: var(--sky-100);
  padding-block: var(--space-6) var(--space-5);
}
.footer-grid {
  display: grid;
  grid-template-columns: minmax(0, 344px) minmax(0, 1fr) minmax(0, 1fr);
  gap: var(--space-5);
  margin-bottom: var(--space-5);
  align-items: start;
}
.footer-grid > .footer-brand {
  grid-column: 1;
  grid-row: 1;
}
.footer-grid > .footer-col:nth-child(2) {
  grid-column: 2;
  grid-row: 1;
  justify-self: center;
  width: max-content;
  max-width: 100%;
}
.footer-grid > .footer-col:nth-child(3) {
  grid-column: 3;
  grid-row: 1;
  justify-self: start;
}
.footer-grid > .footer-col {
  display: block;
  min-width: 0;
}
.footer-brand {
  width: 100%;
  max-width: min(100%, 344px);
}
.footer-brand .logo-panel {
  --logo-art-aspect: 2.236;
  --logo-canvas-width-scale: 2.248;
  width: 100%;
  max-width: min(100%, 344px);
  height: auto;
  aspect-ratio: var(--logo-art-aspect);
  overflow: hidden;
  margin-bottom: var(--space-3);
}
.footer-brand .logo-panel img {
  width: calc(100% * var(--logo-canvas-width-scale));
  height: auto;
  max-width: none;
  flex: 0 0 auto;
}
.footer-desc {
  color: #aebfdc;
  font-size: 1rem;
  max-width: 34ch;
}
.footer-col h2 {
  font-size: 1.05rem;
  color: var(--white);
  text-transform: uppercase;
  letter-spacing: 0.08em;
  margin-bottom: var(--space-3);
}
.footer-col ul {
  list-style: none;
  margin: 0;
  padding: 0;
}
.footer-col li {
  margin-bottom: 0.6rem;
}
.footer-col a {
  color: var(--sky-100);
  text-decoration: none;
  font-size: 1.02rem;
}
.footer-col a:hover {
  color: var(--cyan-200);
  text-decoration: underline;
}
.footer-email {
  color: #aebfdc;
  font-size: 1rem;
}
.footer-bottom {
  border-top: 1px solid rgba(255, 255, 255, 0.12);
  padding-top: var(--space-4);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-2) var(--space-4);
  justify-content: space-between;
  align-items: center;
  color: #93a6c9;
  font-size: 0.95rem;
}
.footer-bottom a {
  color: #93a6c9;
}

/* ----------------------------------------------------------------------------
   17. Breadcrumbs & article typography
   -------------------------------------------------------------------------- */
.breadcrumb {
  font-size: 0.98rem;
}
.breadcrumb ol {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  padding: 0;
  margin: 0;
}
.breadcrumb li {
  margin: 0;
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  color: var(--cyan-200);
}
.breadcrumb li:not(:last-child)::after {
  content: "›";
  color: rgba(159, 233, 255, 0.6);
}
.breadcrumb a {
  color: var(--white);
  text-decoration: none;
}
.breadcrumb a:hover {
  text-decoration: underline;
}
.breadcrumb [aria-current="page"] {
  color: var(--cyan-200);
}

.article {
  max-width: var(--measure);
  margin-inline: auto;
}
.article h2 {
  font-size: var(--fs-h3);
  margin-top: var(--space-5);
}
.article h3 {
  font-size: var(--fs-h4);
  margin-top: var(--space-4);
}
.article p,
.article li {
  color: var(--ink);
}
.article ul,
.article ol {
  margin-bottom: var(--space-3);
}

.article-summary {
  background: var(--grad-support);
  border: 1px solid var(--line);
  border-left: 5px solid var(--royal-600);
  border-radius: var(--radius-card);
  padding: var(--space-4);
  margin-bottom: var(--space-5);
}
.article-summary p:last-child {
  margin-bottom: 0;
}

.try-today {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  padding: var(--space-4);
  box-shadow: var(--shadow-sm);
  margin-block: var(--space-5);
}
.try-today h2 {
  margin-top: 0;
  display: flex;
  align-items: center;
  gap: 0.5rem;
}

.disclaimer {
  font-size: 0.95rem;
  color: var(--muted);
  background: var(--sky-50);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: var(--space-3);
  margin-top: var(--space-5);
}

.related {
  margin-top: var(--space-5);
}
.related ul {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--space-2);
}
.related a {
  font-family: var(--font-head);
  font-weight: 600;
  text-decoration: none;
}

/* ----------------------------------------------------------------------------
   18. Misc content helpers
   -------------------------------------------------------------------------- */
.prose {
  max-width: var(--measure);
}
.prose > * + * {
  margin-top: var(--space-3);
}

.headshot-panel {
  position: relative;
  aspect-ratio: 4 / 5;
  border-radius: var(--radius-lg);
  overflow: hidden;
  background: var(--grad-primary);
  box-shadow: var(--shadow-lg);
  display: grid;
  place-items: center;
  color: var(--white);
  text-align: center;
  padding: var(--space-4);
}
.headshot-panel__inner {
  position: relative;
  z-index: 2;
}
.headshot-panel svg {
  width: 96px;
  height: 96px;
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--space-2);
}
.headshot-panel p {
  color: var(--cyan-200);
  font-weight: 600;
  margin: 0;
}
.headshot-panel .deco-arc {
  position: absolute;
  border: 2px solid rgba(255, 255, 255, 0.12);
  border-radius: 50%;
  width: 320px;
  height: 320px;
  top: -80px;
  right: -120px;
  z-index: 1;
}

.value-list {
  list-style: none;
  padding: 0;
  display: grid;
  gap: var(--space-3);
}
.value-list li {
  position: relative;
  padding-left: 2.2rem;
  margin: 0;
}
.value-list li svg {
  position: absolute;
  left: 0;
  top: 2px;
  width: 24px;
  height: 24px;
  color: var(--royal-600);
}

.pill-list {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  padding: 0;
}
.pill-list li {
  margin: 0;
  padding: 0.35rem 0.8rem;
  background: var(--sky-100);
  border-radius: 999px;
  font-size: 0.98rem;
  font-weight: 600;
  color: var(--navy-900);
}

/* ----------------------------------------------------------------------------
   19. Scroll reveal
   -------------------------------------------------------------------------- */
[data-reveal] {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}
[data-reveal].is-visible {
  opacity: 1;
  transform: none;
}

/* ----------------------------------------------------------------------------
   20. Responsive
   -------------------------------------------------------------------------- */
/* Medium screens: keep the horizontal nav from crowding before it collapses. */
@media (min-width: 861px) and (max-width: 1120px) {
  :root {
    --header-h: 108px;
  }
  .logo-panel {
    /* Medium widths: enlarged but below desktop so horizontal nav keeps breathing room. */
    --logo-h: 88px;
  }
  .nav-menu a:not(.btn) {
    padding: 0.6rem 0.7rem;
    font-size: 1rem;
  }
  .nav-menu {
    gap: 0.25rem;
  }
  .nav-cta .btn {
    padding: 0.75rem 1.1rem;
    font-size: 1rem;
  }
}

@media (max-width: 1024px) {
  .hero__inner {
    grid-template-columns: 1fr;
    gap: var(--space-5);
  }
  .hero__art {
    max-width: 360px;
    order: -1;
  }
  .grid-4 {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps {
    grid-template-columns: repeat(2, 1fr);
  }
  .steps::before {
    display: none;
  }
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }
  .footer-grid > .footer-brand {
    grid-column: 1 / -1;
    grid-row: 1;
    display: flex;
    flex-direction: column;
    align-items: center;
    max-width: min(100%, 344px);
    margin-inline: auto;
  }
  .footer-grid > .footer-col:nth-child(2) {
    grid-column: 1;
    grid-row: 2;
    justify-self: start;
    width: auto;
  }
  .footer-grid > .footer-col:nth-child(3) {
    grid-column: 2;
    grid-row: 2;
  }
  .footer-brand .footer-desc {
    text-align: center;
  }
}

@media (max-width: 860px) {
  :root {
    --header-h: 116px;
  }
  .site-header .logo-panel {
    --logo-h: 96px;
  }
  .nav-toggle {
    display: inline-flex;
  }
  .nav-menu {
    position: absolute;
    top: 100%;
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    gap: 0.25rem;
    background: var(--navy-900);
    padding: var(--space-3);
    box-shadow: var(--shadow-lg);
    border-top: 1px solid rgba(255, 255, 255, 0.12);
    max-height: 0;
    overflow: hidden;
    opacity: 0;
    visibility: hidden;
    transition: max-height 0.25s ease, opacity 0.25s ease,
      visibility 0.25s ease;
  }
  .nav-menu.is-open {
    max-height: 80vh;
    opacity: 1;
    visibility: visible;
    overflow-y: auto;
  }
  .nav-menu a:not(.btn) {
    display: block;
    padding: 0.85rem 0.75rem;
    font-size: 1.1rem;
  }
  .nav-cta {
    margin: var(--space-2) 0 0;
  }
  .nav-cta .btn {
    width: 100%;
  }
  .site-header {
    position: relative;
  }
  .header-inner {
    position: relative;
  }
  /* The mobile header scrolls offscreen rather than staying sticky, so the
     compact shrink serves no purpose here. Neutralize it: keep the header and
     logo at their normal size in the .is-compact state too, so the logo never
     appears to grow when scrolling back to the top. (601–860px uses the 96px
     mobile logo above; Γëñ600px is handled below.) Desktop/tablet compact
     behavior is unaffected. */
  .site-header.is-compact .header-inner {
    min-height: var(--header-h);
    padding-block: 0.625rem;
  }
  .site-header.is-compact .logo-panel {
    --logo-h: 96px;
  }
}

@media (max-width: 600px) {
  :root {
    --header-h: 100px;
  }
  .site-header .logo-panel {
    /* Largest safe phone logo: ~181px wide at 80px height still clears the
       48px menu toggle with margin at 320px (inner ≈ 285px ΓêÆ 181 ΓêÆ gap ΓêÆ 48). */
    --logo-h: 80px;
  }
  /* Hold the same size in the compact state so the logo stays consistent while
     the phone header scrolls away (no shrink, no grow-back at the top). */
  .site-header.is-compact .header-inner {
    min-height: var(--header-h);
    padding-block: 0.625rem;
  }
  .site-header.is-compact .logo-panel {
    --logo-h: 80px;
  }
}

@media (max-width: 720px) {
  .grid-2,
  .grid-3,
  .grid-4 {
    grid-template-columns: 1fr;
  }
  .media-split {
    grid-template-columns: 1fr;
    gap: var(--space-4);
  }
  .steps {
    grid-template-columns: 1fr;
  }
  .footer-grid {
    grid-template-columns: 1fr;
  }
  .footer-grid > .footer-brand {
    grid-column: 1;
    grid-row: 1;
    max-width: min(100%, 344px);
    width: 100%;
    margin-inline: auto;
    align-items: stretch;
  }
  .footer-grid > .footer-col:nth-child(2) {
    grid-column: 1;
    grid-row: 2;
    justify-self: start;
    width: auto;
  }
  .footer-grid > .footer-col:nth-child(3) {
    grid-column: 1;
    grid-row: 3;
  }
  .footer-brand .footer-desc {
    text-align: left;
  }
  .about-split {
    grid-template-columns: 1fr !important;
  }
  .btn-row .btn {
    width: 100%;
  }
}

/* About page split layout */
.about-split {
  display: grid;
  grid-template-columns: 0.9fr 1.1fr;
  gap: var(--space-6);
  align-items: start;
}

/* About page: distinct content blocks for philosophy / expectations / why. */
.info-cards {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-3);
  margin-top: var(--space-4);
}
.info-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-card);
  box-shadow: var(--shadow-sm);
  padding: var(--space-4);
}
.info-card h2 {
  font-size: var(--fs-h4);
  margin-top: 0;
  margin-bottom: var(--space-2);
}
.info-card--wide {
  grid-column: 1 / -1;
}
.info-card ul {
  margin: 0;
}
.info-card p:last-child {
  margin-bottom: 0;
}
@media (max-width: 640px) {
  .info-cards {
    grid-template-columns: 1fr;
  }
}

/* Program grid: two columns on larger screens, stacking on narrow ones. */
.program-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--space-4);
  align-items: start;
}
@media (max-width: 900px) {
  .program-grid {
    grid-template-columns: 1fr;
  }
}

/* Program detail block */
.program-detail {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-lg);
  box-shadow: var(--shadow-sm);
  padding: var(--space-5);
}
/* Spacing between stacked details when NOT inside the grid. */
.program-detail + .program-detail {
  margin-top: var(--space-4);
}
.program-grid .program-detail + .program-detail {
  margin-top: 0;
}
.program-detail__head {
  display: flex;
  align-items: center;
  gap: var(--space-3);
  margin-bottom: var(--space-3);
}
.program-detail__num {
  flex-shrink: 0;
  display: inline-grid;
  place-items: center;
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--grad-action);
  color: var(--white);
  font-family: var(--font-head);
  font-weight: 800;
  font-size: 1.2rem;
}
.program-detail h3 {
  margin: 0;
}
.detail-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-3);
  margin-top: var(--space-3);
}
.detail-grid h4 {
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  color: var(--royal-600);
  margin-bottom: 0.35rem;
}
.detail-grid p,
.detail-grid ul {
  margin: 0;
  color: var(--muted);
  font-size: 1.02rem;
}
@media (max-width: 720px) {
  .detail-grid {
    grid-template-columns: 1fr;
  }
  .program-detail {
    padding: var(--space-4);
  }
}

/* ----------------------------------------------------------------------------
   21. Reduced motion
   -------------------------------------------------------------------------- */
@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }
  *,
  *::before,
  *::after {
    animation-duration: 0.001ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.001ms !important;
  }
  [data-reveal] {
    opacity: 1;
    transform: none;
  }
}

/* Gentle hero drift (only when motion allowed) */
@media (prefers-reduced-motion: no-preference) {
  .hero__art {
    animation: drift 9s ease-in-out infinite;
  }
  .hero__art .orbit--2 {
    animation: spin 60s linear infinite;
  }
  .hero__art .spark {
    animation: twinkle 4s ease-in-out infinite;
  }
  .hero__art .spark--b {
    animation-delay: 1.2s;
  }
  .hero__art .spark--c {
    animation-delay: 2.4s;
  }
}
@keyframes drift {
  0%,
  100% {
    transform: translateY(0);
  }
  50% {
    transform: translateY(-12px);
  }
}
@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}
@keyframes twinkle {
  0%,
  100% {
    opacity: 0.4;
    transform: scale(0.9);
  }
  50% {
    opacity: 1;
    transform: scale(1.1);
  }
}