/* ==========================================================================
   DinoHides — main.css
   Mobile-first · calm palette · Apple-style system font · glassmorphism
   ========================================================================== */

:root {
  /* Core palette */
  --color-bg:          #f5f5f7;
  --color-bg-white:    #ffffff;
  --color-text:        #1d1d1f;
  --color-text-muted:  #6e6e73;
  --color-accent:      #2d6a4f;
  --color-accent-hover:#245542;
  --color-accent-light:#e8f5ee;
  --color-border:      rgba(0, 0, 0, 0.06);
  --color-glass-bg:    rgba(255, 255, 255, 0.72);
  --color-glass-shadow:rgba(0, 0, 0, 0.04);

  /* Extended gradient palette */
  --green:             #3c8b63;
  --green-dark:        #1f5a3b;
  --purple:            #7a63f6;
  --soft-green:        rgba(60,139,99,0.14);
  --soft-purple:       rgba(122,99,246,0.16);

  /* #1 — Page background gradient */
  --grad-page:         linear-gradient(180deg, #fbfcf8 0%, #f3f6ef 46%, #edf2e8 100%);
  /* #4 — Brand mark */
  --grad-brand:        linear-gradient(135deg, var(--green), var(--purple));
  /* #5 — Primary button */
  --grad-btn:          linear-gradient(135deg, #132018, #1d2a25 26%, #5d45dc 100%);
  /* #6 — Accent text */
  --grad-accent-text:  linear-gradient(135deg, var(--green-dark), var(--purple));
  /* #9 — Icon bg */
  --grad-icon:         linear-gradient(135deg, var(--soft-green), var(--soft-purple));
  /* #10 — Sticky / glass panel */
  --grad-sticky-panel: linear-gradient(180deg, rgba(255,255,255,0.76), rgba(255,255,255,0.58));
  /* #11 — Result / quote card */
  --grad-card:         linear-gradient(180deg, rgba(255,255,255,0.82), rgba(255,255,255,0.62));
  /* #12 — CTA band */
  --grad-cta-band:     linear-gradient(135deg, rgba(21,28,39,0.96), rgba(67,53,138,0.94));

  --font-sans: -apple-system, BlinkMacSystemFont, "SF Pro Text", "SF Pro Display",
               "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;

  --header-height: 44px;
  --header-blur:   20px;
  --radius-sm:     8px;
  --radius-md:     14px;
  --radius-lg:     20px;
  --radius-pill:   980px;
  --max-w:         1120px;
  --space-xs:      4px;
  --space-sm:      8px;
  --space-md:      16px;
  --space-lg:      24px;
  --space-xl:      40px;
  --space-2xl:     64px;
  --space-3xl:     96px;
}

/* ---------- Reset / base ---------- */

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-sans);
  font-size: 17px;
  line-height: 1.47;
  letter-spacing: -0.022em;
  color: var(--color-text);
  /* #1 page bg + #2 top-left glow + #3 top-right glow */
  background:
    radial-gradient(circle at 12% 8%, rgba(122,99,246,0.08), transparent 24%),
    radial-gradient(circle at 84% 16%, rgba(60,139,99,0.08), transparent 22%),
    var(--grad-page);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  overflow-x: hidden;
}

img, svg { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
ul { list-style: none; }
button { font: inherit; cursor: pointer; }

.wrap {
  width: 100%;
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--space-md);
}

/* ---------- Typography ---------- */

.h1, h1 { font-size: clamp(2rem, 5vw, 3.5rem); font-weight: 700; letter-spacing: -0.04em; line-height: 1.08; }
.h2, h2 { font-size: clamp(1.5rem, 3.5vw, 2.5rem); font-weight: 700; letter-spacing: -0.035em; line-height: 1.15; }
.h3, h3 { font-size: clamp(1.1rem, 2vw, 1.4rem); font-weight: 600; letter-spacing: -0.02em; line-height: 1.25; }
.text-muted { color: var(--color-text-muted); }
.text-accent { color: var(--color-accent); }

/* #6 — accent text gradient */
.text-gradient {
  background: var(--grad-accent-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* ---------- Buttons ---------- */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  border: none;
  border-radius: var(--radius-pill);
  font-weight: 600;
  font-size: 15px;
  letter-spacing: 0.01em;
  padding: 14px 28px;
  transition: transform 0.2s ease, box-shadow 0.2s ease, background 0.2s ease;
}

.btn--primary {
  color: #fff;
  /* #5 — primary button gradient */
  background: var(--grad-btn);
  box-shadow: 0 1px 0 rgba(255,255,255,0.12) inset, 0 2px 8px rgba(0,0,0,0.18);
}

.btn--primary:hover {
  background: linear-gradient(135deg, #0e1710, #161f1c 26%, #4a36c4 100%);
  box-shadow: 0 1px 0 rgba(255,255,255,0.15) inset, 0 6px 20px rgba(93,69,220,0.22);
}

.btn--primary:active { transform: scale(0.98); }

.btn--outline {
  color: var(--color-text);
  background: transparent;
  border: 1.5px solid var(--color-border);
  box-shadow: none;
}

.btn--outline:hover { border-color: var(--color-text); }

@media (prefers-reduced-motion: reduce) {
  .btn { transition: none; }
  .btn--primary:active { transform: none; }
}

/* ==========================================================================
   HEADER — floating glass capsule
   ========================================================================== */

.site-header {
  position: fixed;
  inset: 0 0 auto 0;
  z-index: 1000;
  padding: 8px 16px;
  pointer-events: none;
}

.site-header__bar {
  pointer-events: auto;
  max-width: calc(var(--max-w) + 48px);
  margin-inline: auto;
  min-height: var(--header-height);
  padding: 4px var(--space-md);
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  background: var(--color-glass-bg);
  -webkit-backdrop-filter: saturate(180%) blur(var(--header-blur));
  backdrop-filter: saturate(180%) blur(var(--header-blur));
  border: 1px solid var(--color-border);
  border-radius: 12px;
  box-shadow: 0 1px 0 rgba(255,255,255,0.65) inset, 0 4px 24px var(--color-glass-shadow);
}

@media (prefers-reduced-motion: reduce) {
  .site-header__bar {
    -webkit-backdrop-filter: none;
    backdrop-filter: none;
    background: rgba(255,255,255,0.94);
  }
}

.site-brand {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-weight: 600;
  font-size: 16px;
  letter-spacing: -0.03em;
  flex-shrink: 0;
}

.site-brand__word { display: none; }

@media (min-width: 640px) {
  .site-brand__word { display: inline; }
}

.site-brand__mark {
  width: 26px;
  height: 26px;
  border-radius: 7px;
  /* #4 — brand mark gradient */
  background: var(--grad-brand);
  box-shadow: 0 1px 2px rgba(0,0,0,0.12);
}

/* Desktop nav */
.site-nav { display: none; flex: 1; justify-content: center; }

@media (min-width: 900px) {
  .site-nav { display: flex; }
}

.site-nav__list {
  display: flex;
  align-items: center;
  gap: clamp(8px, 2vw, 28px);
}

.site-nav__list li a,
.site-nav__link {
  color: var(--color-text-muted);
  font-size: 11px;
  font-weight: 500;
  letter-spacing: 0.01em;
  padding: 5px 8px;
  border-radius: var(--radius-sm);
  transition: color 0.2s ease, background 0.2s ease;
}

.site-nav__list li a:hover,
.site-nav__link:hover {
  color: var(--color-text);
  background: rgba(0,0,0,0.04);
}

/* Header actions */
.site-header__actions {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-shrink: 0;
}

.site-header__secondary {
  display: none;
  font-size: 11px;
  font-weight: 500;
  color: var(--color-text-muted);
  padding: 5px 10px;
  border-radius: var(--radius-sm);
  transition: color 0.2s, background 0.2s;
}

@media (min-width: 640px) {
  .site-header__secondary { display: inline-flex; }
}

.site-header__secondary:hover { color: var(--color-text); background: rgba(0,0,0,0.04); }

.site-header__cta {
  appearance: none;
  border: none;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
  color: #fff;
  /* #5 — same button gradient as main CTA */
  background: var(--grad-btn);
  padding: 6px 14px;
  border-radius: var(--radius-pill);
  box-shadow: 0 1px 0 rgba(255,255,255,0.12) inset, 0 2px 8px rgba(0,0,0,0.15);
  transition: transform 0.2s, box-shadow 0.2s, background 0.2s;
}

.site-header__cta:hover {
  background: linear-gradient(135deg, #0e1710, #161f1c 26%, #4a36c4 100%);
  box-shadow: 0 1px 0 rgba(255,255,255,0.15) inset, 0 4px 16px rgba(93,69,220,0.2);
}
.site-header__cta:active { transform: scale(0.98); }

/* Header bar tappable on mobile to open nav */
@media (max-width: 899px) {
  .site-header__bar { cursor: pointer; }
}

/* ==========================================================================
   MOBILE OVERLAY — full-screen glassmorphism menu
   ========================================================================== */

.mobile-overlay {
  position: fixed;
  inset: 0;
  z-index: 9998;
  background: rgba(255,255,255,0.55);
  -webkit-backdrop-filter: saturate(200%) blur(44px);
  backdrop-filter: saturate(200%) blur(44px);
  border: 1px solid rgba(255,255,255,0.35);
  box-shadow: inset 0 0 80px rgba(255,255,255,0.15);
  opacity: 0;
  visibility: hidden;
  transition: opacity 0.55s cubic-bezier(0.22, 1, 0.36, 1),
              visibility 0.55s;
  overflow-y: auto;
  -webkit-overflow-scrolling: touch;
}

.mobile-overlay[aria-hidden="false"] {
  opacity: 1;
  visibility: visible;
}

.mobile-overlay__inner {
  display: flex;
  flex-direction: column;
  min-height: 100%;
  padding: 16px 24px 40px;
  transform: translateY(-40px);
  opacity: 0;
  transition: transform 0.65s cubic-bezier(0.22, 1, 0.36, 1) 0.08s,
              opacity 0.5s cubic-bezier(0.22, 1, 0.36, 1) 0.08s;
}

.mobile-overlay[aria-hidden="false"] .mobile-overlay__inner {
  transform: translateY(0);
  opacity: 1;
}

.mobile-overlay__top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  margin-bottom: var(--space-xl);
}

.mobile-overlay__top .site-brand {
  display: inline-flex;
}

.mobile-overlay__close {
  width: 40px;
  height: 40px;
  border: none;
  border-radius: 50%;
  background: rgba(0,0,0,0.06);
  color: var(--color-text);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s, transform 0.2s;
}

.mobile-overlay__close:hover {
  background: rgba(0,0,0,0.1);
  transform: rotate(90deg);
}

.mobile-overlay__nav {
  flex: 1;
  display: flex;
  flex-direction: column;
}

.mobile-overlay__links {
  display: flex;
  flex-direction: column;
}

.mobile-overlay__link,
.mobile-overlay__links a {
  display: block;
  padding: 18px 4px;
  border-bottom: 1px solid var(--color-border);
  font-size: 22px;
  font-weight: 600;
  letter-spacing: -0.02em;
  color: var(--color-text);
  transition: color 0.2s, padding-left 0.2s;
}

.mobile-overlay__link:hover,
.mobile-overlay__links a:hover {
  color: var(--color-accent);
  padding-left: 8px;
}

.mobile-overlay__divider {
  height: 1px;
  background: var(--color-border);
  margin: var(--space-sm) 0;
}

.mobile-overlay__cta {
  margin-top: auto;
  width: 100%;
  padding: 18px;
  font-size: 16px;
}

@media (min-width: 900px) {
  .mobile-overlay { display: none !important; }
}

/* ==========================================================================
   HOMEPAGE SECTIONS — mobile-first
   ========================================================================== */

.section {
  padding: var(--space-2xl) 0;
}

.section--hero {
  padding-top: calc(var(--header-height) + var(--space-3xl));
  padding-bottom: var(--space-2xl);
  background: transparent;
  position: relative;
}

@media (max-width: 899px) {
  .section--hero {
    padding-bottom: calc(var(--space-3xl) + var(--space-xl));
  }

  #problem.dh-problem-section.section {
    padding-top: calc(var(--space-2xl) + var(--space-lg));
  }
}

.section--alt { background: transparent; }
.section--white { background: transparent; }

/* --- Hero (Section 1) --- */

.hero__content {
  max-width: 640px;
}

.hero__eyebrow {
  display: inline-block;
  font-size: 13px;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  /* #6 — accent gradient on eyebrow */
  background: var(--grad-accent-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-md);
}

.hero__title {
  margin-bottom: var(--space-lg);
}

.hero__sub {
  font-size: clamp(1rem, 2vw, 1.15rem);
  color: var(--color-text-muted);
  line-height: 1.55;
  margin-bottom: var(--space-xl);
  max-width: 540px;
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: var(--space-xl);
}

.hero__trust {
  display: flex;
  align-items: center;
  gap: var(--space-sm);
  font-size: 13px;
  color: var(--color-text-muted);
}

.hero__trust-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  /* #4 — brand gradient on dot */
  background: var(--grad-brand);
  flex-shrink: 0;
}

/* desktop two-col hero */
@media (min-width: 900px) {
  .hero__grid {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: var(--space-2xl);
    align-items: center;
  }
}

.hero__visual {
  display: none;
  position: relative;
  min-height: 480px;
}

@media (min-width: 900px) {
  .hero__visual {
    display: block;
    min-height: 620px;
  }
}

/* --- Hero orbit card --- */
.hero-card {
  position: absolute;
  inset: 56px 0 40px 24px;
  border-radius: 34px;
  overflow: hidden;
  background:
    radial-gradient(circle at 18% 14%, rgba(255,244,230,0.90), transparent 24%),
    radial-gradient(circle at 78% 16%, rgba(122,99,246,0.34), transparent 26%),
    linear-gradient(145deg, #f8f2eb 0%, #7c64f0 30%, #243659 68%, #0e1421 100%);
  box-shadow: 0 26px 60px rgba(17,24,39,0.18);
  border: 1px solid rgba(255,255,255,0.24);
}

.hero-glow {
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 42% 50%, rgba(255,255,255,0.08), transparent 24%);
  pointer-events: none;
}

.ring-wrap,
.orbit-shell,
.hero-stat {
  position: absolute;
  inset: 0;
  display: grid;
  place-items: center;
}

.ring,
.ring::before,
.ring::after {
  position: absolute;
  border-radius: 50%;
  border: 1px solid rgba(255,255,255,0.18);
  content: "";
}

.ring          { width: 400px; height: 400px; }
.ring::before  { inset: 50px; }
.ring::after   { inset: 104px; }

.orbit {
  position: absolute;
  border-radius: 50%;
  left: 50%;
  top: 50%;
  transform: translate(-50%, -50%);
}

.orbit-1 { width: 410px; height: 410px; }
.orbit-2 { width: 300px; height: 300px; }

.logo-node {
  position: absolute;
  top: 50%;
  left: 50%;
  width: 64px;
  height: 64px;
  border-radius: 20px;
  display: grid;
  place-items: center;
  background: rgba(7,10,23,0.78);
  border: 1px solid rgba(255,255,255,0.1);
  box-shadow: 0 16px 28px rgba(8,13,30,0.28);
  transform-origin: center;
  -webkit-backdrop-filter: blur(8px);
  backdrop-filter: blur(8px);
}

.logo-node svg       { width: 28px; height: 28px; }
.logo-node--sm       { width: 56px; height: 56px; }
.logo-node--sm svg   { width: 24px; height: 24px; }

.hero-stat {
  color: #fff;
  text-align: center;
  z-index: 2;
  pointer-events: none;
}

.hero-stat strong {
  display: block;
  font-size: clamp(3rem, 5vw, 4.7rem);
  line-height: 1;
  letter-spacing: -0.05em;
}

.hero-stat span {
  display: block;
  margin-top: 10px;
  color: rgba(255,255,255,0.76);
  font-size: 1rem;
  font-weight: 500;
  max-width: 22ch;
  margin-inline: auto;
}

.mini-chip {
  position: absolute;
  padding: 10px 16px;
  border-radius: 980px;
  background: rgba(255,255,255,0.14);
  color: #fff;
  border: 1px solid rgba(255,255,255,0.14);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  font-weight: 700;
  font-size: 0.88rem;
  z-index: 4;
}

/* Mobile orbit scaling */
@media (max-width: 899px) {
  .hero__visual { display: block; min-height: 470px; }
  .hero-card    { inset: 20px 0 0; border-radius: 26px; }
  .ring, .orbit-1 { width: 290px; height: 290px; }
  .orbit-2      { width: 214px; height: 214px; }
  .logo-node    { width: 52px; height: 52px; border-radius: 18px; }
  .logo-node svg { width: 24px; height: 24px; }
  .logo-node--sm { width: 44px; height: 44px; }
  .logo-node--sm svg { width: 20px; height: 20px; }
  .mini-chip    { font-size: 0.84rem; padding: 8px 12px; }
}

.hero-card, .logo-node, .mini-chip, .hero-stat { will-change: transform, opacity; }

/* --- Generic section header --- */

.section__header {
  max-width: 600px;
  margin-bottom: var(--space-xl);
}

.section__label {
  display: inline-block;
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  /* #6 — accent text gradient on section labels */
  background: var(--grad-accent-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  margin-bottom: var(--space-sm);
}

.section__title {
  margin-bottom: var(--space-md);
}

.section__desc {
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* --- Section 2: real problem (stacked cards) — scoped to #problem --- */

#problem.dh-problem-section {
  position: relative;
  overflow-x: clip;
}

#problem .dh-problem-wrap {
  display: block;
}

#problem .dh-intro-panel,
#problem .dh-problem-card:not(.dh-spacer-card) {
  background: rgba(255,255,255,0.78);
  -webkit-backdrop-filter: blur(16px);
  backdrop-filter: blur(16px);
  border: 1px solid rgba(255,255,255,0.7);
  box-shadow: 0 18px 40px rgba(16,24,40,0.08);
  border-radius: 28px;
  overflow: hidden;
}

#problem .dh-intro-panel {
  padding: 18px 16px 20px;
  position: sticky;
  top: 10px;
  z-index: 99;
  isolation: isolate;
  margin-bottom: 22px;
  height: fit-content;
}

#problem .dh-intro-panel::before {
  content: "";
  position: absolute;
  inset: auto -10% -18% auto;
  width: 220px;
  height: 220px;
  border-radius: 999px;
  background: radial-gradient(circle, rgba(122,99,246,0.14), transparent 68%);
  z-index: -1;
}

#problem .dh-problem-eyebrow {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  font-size: 0.85rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--green-dark, #1f5a3b);
  margin-bottom: 12px;
}

#problem .dh-problem-eyebrow span:last-child {
  color: var(--purple, #7a63f6);
}

#problem .dh-intro-title {
  margin: 0;
  font-size: clamp(1.75rem, 6vw, 2.75rem);
  line-height: 1.05;
  letter-spacing: -0.04em;
  font-weight: 700;
  color: var(--color-text);
  max-width: 14ch;
}

#problem .dh-intro-text {
  margin: 12px 0 0;
  font-size: clamp(1rem, 3.2vw, 1.15rem);
  line-height: 1.75;
  color: var(--color-text-muted);
  max-width: 42ch;
}

#problem .dh-intro-actions {
  margin-top: 16px;
}

#problem .dh-cards-column {
  display: grid;
  gap: 0;
  padding-bottom: 264px;
}

#problem .dh-problem-card {
  position: sticky;
  top: 0;
  display: grid;
  grid-template-columns: 1fr;
  min-height: clamp(200px, 30vw, 300px);
  will-change: transform, opacity;
  z-index: 1;
  margin-bottom: 90px;
}

#problem .dh-problem-card:last-child {
  margin-bottom: 0;
}

#problem .dh-spacer-card {
  background: transparent !important;
  border: none !important;
  box-shadow: none !important;
  backdrop-filter: none !important;
  -webkit-backdrop-filter: none !important;
  pointer-events: none;
}

#problem .dh-spacer-card::before { display: none !important; }

@keyframes dh-bob-up {
  0%, 100% { transform: translateY(0); }
  50% { transform: translateY(-6px); }
}

#problem .dh-spacer-card__body {
  min-height: 120px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 0;
}

#problem .dh-spacer-arrow {
  opacity: 0.28;
  color: var(--color-text);
  animation: dh-bob-up 2s ease-in-out infinite;
}

#problem .dh-problem-card:nth-child(1) { z-index: 1; }
#problem .dh-problem-card:nth-child(2) { z-index: 2; }
#problem .dh-problem-card:nth-child(3) { z-index: 3; }
#problem .dh-problem-card:nth-child(4) { z-index: 4; }
#problem .dh-problem-card:nth-child(5) { z-index: 5; }
#problem .dh-problem-card:nth-child(6) { z-index: 6; }

#problem .dh-problem-media {
  position: relative;
  min-height: 160px;
  overflow: hidden;
  background: #0d111d;
}

#problem .dh-problem-media::after {
  content: "";
  position: absolute;
  inset: auto 0 0 0;
  height: 44%;
  background: linear-gradient(180deg, rgba(9,11,20,0), rgba(9,11,20,0.6) 75%, rgba(9,11,20,0.82));
  pointer-events: none;
}

#problem .dh-problem-media img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
  transform: scale(1.02);
}

#problem .dh-problem-body {
  display: grid;
  gap: 8px;
  padding: 14px 14px;
}

#problem .dh-problem-top {
  display: flex;
  align-items: flex-start;
  gap: 12px;
}

#problem .dh-step-badge {
  width: 42px;
  height: 42px;
  border-radius: 999px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  flex: 0 0 auto;
  font-weight: 800;
  font-size: 14px;
  color: var(--green-dark, #1f5a3b);
  background: linear-gradient(180deg, #e6e7f0, #dfe1ed);
  box-shadow: inset 0 1px 0 rgba(255,255,255,0.9);
}

#problem .dh-problem-card-title {
  margin: 3px 0 0;
  font-size: clamp(1.1rem, 4vw, 1.5rem);
  letter-spacing: -0.03em;
  line-height: 1.15;
  font-weight: 600;
  color: var(--color-text);
}

#problem .dh-problem-card-text {
  margin: 0;
  color: var(--color-text-muted);
  font-size: clamp(0.95rem, 3vw, 1.05rem);
  line-height: 1.75;
}

#problem .dh-problem-card:not(.dh-spacer-card)::before {
  content: "";
  position: absolute;
  inset: 0;
  border-radius: inherit;
  border: 1px solid transparent;
  background: linear-gradient(135deg, rgba(122,99,246,0.10), rgba(60,139,99,0.08)) border-box;
  mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  mask-composite: exclude;
  -webkit-mask: linear-gradient(#fff 0 0) padding-box, linear-gradient(#fff 0 0);
  -webkit-mask-composite: xor;
  pointer-events: none;
}

#problem .dh-problem-card.active:not(.dh-spacer-card) {
  background: rgba(255,255,255,0.92);
}

#problem .dh-progress-rail {
  display: none;
}

/* Small phones (e.g. 375×667): intro in-flow, shorter cards — sticky tops from JS use header offset */
@media (max-width: 430px) {
  #problem .dh-intro-panel {
    position: relative;
    top: auto;
    padding: 14px 14px 16px;
    margin-bottom: 16px;
    z-index: 1;
  }

  #problem .dh-problem-eyebrow {
    margin-bottom: 8px;
    font-size: 0.78rem;
  }

  #problem .dh-intro-title {
    font-size: clamp(1.45rem, 7vw, 2rem);
    line-height: 1.08;
    max-width: none;
  }

  #problem .dh-intro-text {
    margin-top: 10px;
    font-size: clamp(0.94rem, 3.5vw, 1.05rem);
    line-height: 1.65;
    max-width: none;
  }

  #problem .dh-intro-actions {
    margin-top: 12px;
  }

  #problem .dh-cards-column {
    padding-bottom: 168px;
  }

  #problem .dh-spacer-card__body {
    min-height: 64px;
  }

  #problem .dh-problem-card.dh-spacer-card {
    min-height: 0;
  }

  #problem .dh-problem-card {
    margin-bottom: 66px;
  }

  #problem .dh-problem-card:not(.dh-spacer-card) {
    min-height: clamp(160px, 42vw, 240px);
  }

  #problem .dh-problem-media {
    min-height: 0;
    height: min(200px, 40dvh);
    max-height: min(200px, 40dvh);
  }

  #problem .dh-problem-media img {
    height: 100%;
    min-height: 0;
  }

  #problem .dh-problem-body {
    padding: 12px 12px;
  }
}

@media (min-width: 900px) {
  #problem .dh-problem-wrap {
    display: grid;
    grid-template-columns: minmax(300px, 0.9fr) minmax(380px, 1.1fr);
    gap: 32px;
    align-items: start;
  }

  #problem .dh-intro-panel {
    padding: 32px 32px 28px;
    position: sticky;
    top: 72px;
    z-index: 0;
    margin-bottom: 0;
  }

  #problem .dh-intro-title {
    font-size: clamp(1.75rem, 2.5vw, 2.5rem);
    max-width: 12ch;
  }

  #problem .dh-cards-column {
    padding-bottom: 480px;
  }

  #problem .dh-problem-card:not(.dh-spacer-card) {
    grid-template-columns: 1.02fr 0.98fr;
    min-height: 360px;
    margin-bottom: 168px;
  }

  /* Align with aside (top: 72px) — 72px steps (1.5× the prior 48px “double” stagger) */
  #problem .dh-problem-card:nth-child(1) { top: 72px; }
  #problem .dh-problem-card:nth-child(2) { top: 144px; }
  #problem .dh-problem-card:nth-child(3) { top: 216px; }
  #problem .dh-problem-card:nth-child(4) { top: 288px; }
  #problem .dh-problem-card:nth-child(5) { top: 360px; }
  #problem .dh-problem-card:nth-child(6) { top: 432px; }

  #problem .dh-problem-media {
    min-height: 100%;
  }

  #problem .dh-problem-body {
    padding: 24px 22px 24px 18px;
    align-content: center;
  }

  #problem .dh-progress-rail {
    display: block;
    position: absolute;
    left: 50%;
    top: 0;
    bottom: 0;
    width: 2px;
    transform: translateX(-50%);
    background: linear-gradient(180deg, rgba(23,26,31,0.06), rgba(23,26,31,0.02));
    pointer-events: none;
  }

  #problem .dh-progress-fill {
    width: 100%;
    height: 0%;
    background: linear-gradient(180deg, var(--green, #3c8b63), var(--purple, #7a63f6));
    border-radius: 999px;
    transform-origin: top center;
  }
}

/* --- Section #approach — comparison cards (scroll-driven layout) --- */

#approach {
  overflow: visible;
}

#approach .dh-compare-scene {
  position: relative;
  min-height: auto;
  margin-top: var(--space-lg);
}

#approach .dh-compare-sticky {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
}

#approach .dh-compare-card {
  position: relative;
  border-radius: var(--radius-lg);
  overflow: hidden;
  box-shadow: 0 20px 50px rgba(17, 24, 39, 0.08);
  transform-origin: center center;
  will-change: transform;
}

#approach .dh-compare-card-inner {
  min-height: 420px;
  padding: var(--space-lg) var(--space-md) var(--space-xl) var(--space-md);
  display: flex;
  flex-direction: column;
  justify-content: space-between;
}

#approach .dh-compare-card--before {
  background: rgba(251, 252, 252, 0.96);
  border: 1px solid var(--color-border);
  color: var(--color-text);
  z-index: 1;
}

#approach .dh-compare-card--after {
  background: linear-gradient(165deg, var(--green) 0%, var(--color-accent) 42%, var(--green-dark) 100%);
  color: #fff;
  border: 1px solid rgba(45, 106, 79, 0.35);
  z-index: 2;
}

#approach .dh-compare-kicker {
  display: block;
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  margin-bottom: var(--space-md);
  opacity: 0.9;
  text-align: center;
}

#approach .dh-compare-card--before .dh-compare-kicker {
  color: var(--color-text-muted);
}

#approach .dh-compare-card--after .dh-compare-kicker {
  color: rgba(255, 255, 255, 0.92);
}

#approach .dh-compare-title {
  margin: 0;
  text-align: center;
  font-size: clamp(1.85rem, 7vw, 3.25rem);
  line-height: 0.92;
  letter-spacing: -0.06em;
  font-weight: 800;
}

#approach .dh-compare-card--before .dh-compare-title {
  color: var(--color-text);
}

#approach .dh-compare-card--after .dh-compare-title {
  color: #fff;
}

#approach .dh-compare-bullets {
  display: grid;
  gap: 0;
  margin-top: var(--space-md);
}

#approach .dh-compare-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: var(--space-md);
  align-items: center;
  min-height: 56px;
  border-top: 1px solid rgba(22, 25, 29, 0.1);
  font-size: clamp(0.8rem, 2.4vw, 0.95rem);
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

#approach .dh-compare-row:first-child {
  border-top: none;
}

#approach .dh-compare-card--after .dh-compare-row {
  border-top-color: rgba(255, 255, 255, 0.2);
}

#approach .dh-compare-check {
  width: 26px;
  height: 26px;
  border-radius: 8px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 0.85rem;
  font-weight: 800;
  flex-shrink: 0;
}

#approach .dh-compare-card--before .dh-compare-check {
  background: var(--color-text);
  color: #fff;
}

#approach .dh-compare-card--after .dh-compare-check {
  background: rgba(255, 255, 255, 0.92);
  color: var(--green-dark);
}

#approach .dh-compare-cta {
  margin-top: var(--space-lg);
  margin-bottom: var(--space-md);
  width: 100%;
  min-height: 52px;
  border-radius: var(--radius-pill);
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-size: 0.8rem;
  font-weight: 700;
}

#approach .dh-compare-card--after .dh-compare-cta {
  background: rgba(255, 255, 255, 0.95);
  color: var(--color-text);
  border: none;
}

@media (max-width: 899px) {
  #approach .dh-compare-scene {
    min-height: 300vh;
  }

  #approach .dh-compare-sticky {
    position: sticky;
    top: 16px;
    min-height: calc(100vh - 32px);
    overflow: visible;
  }
}

@media (min-width: 900px) {
  #approach .dh-compare-scene {
    min-height: 320vh;
  }

  #approach .dh-compare-sticky {
    position: sticky;
    top: 22px;
    min-height: calc(100vh - 44px);
    display: grid;
    grid-template-columns: 1fr 1fr;
    align-items: center;
    gap: var(--space-lg);
    overflow: visible;
  }

  #approach .dh-compare-card {
    width: 100%;
  }

  #approach .dh-compare-card-inner {
    min-height: min(720px, 78vh);
    padding: var(--space-xl) var(--space-lg) calc(var(--space-xl) + var(--space-sm)) var(--space-lg);
  }

  #approach .dh-compare-kicker {
    font-size: 0.8rem;
    margin-bottom: var(--space-lg);
  }

  #approach .dh-compare-bullets {
    margin-top: var(--space-lg);
  }

  #approach .dh-compare-row {
    min-height: 68px;
    font-size: 0.88rem;
  }
}

.proof-strip {
  margin-top: var(--space-xl);
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-md);
}

@media (prefers-reduced-motion: no-preference) {
  .js-proof-strip .proof-tile {
    opacity: 0;
    transform: translate3d(0, 6px, 0);
  }

  .js-proof-strip .proof-tile__number {
    opacity: 0;
    transform: translate3d(0, 10px, 0) scale(0.98);
  }
}

.proof-tile {
  padding: var(--space-md) var(--space-lg);
  border-radius: var(--radius-md);
  /* #11 — result / quote card */
  background: var(--grad-card);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-border);
  text-align: center;
  flex: 1;
  min-width: 140px;
}

/* Clip number motion so the stat “settles” inside the tile */
.proof-tile__number-mask {
  overflow: hidden;
  display: flex;
  justify-content: center;
  align-items: flex-end;
  min-height: 2.35rem;
}

.proof-tile__number {
  font-size: 2rem;
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1;
  /* #6 — gradient text on stat numbers */
  background: var(--grad-accent-text);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  will-change: transform, opacity;
}

.proof-tile__label {
  font-size: 13px;
  color: var(--color-text-muted);
  margin-top: var(--space-xs);
}

/* --- Benefits (Section 4) --- */

.benefits-grid {
  display: grid;
  gap: var(--space-md);
}

@media (min-width: 640px) {
  .benefits-grid { grid-template-columns: 1fr 1fr; }
}

@media (min-width: 900px) {
  .benefits-grid { grid-template-columns: 1fr 1fr 1fr; }
}

.benefit-card {
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  /* #11 — card gradient */
  background: var(--grad-card);
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  border: 1px solid var(--color-border);
  transition: transform 0.25s ease, box-shadow 0.25s ease;
}

@media (min-width: 900px) {
  .benefit-card:hover {
    transform: translateY(-4px);
    box-shadow: 0 8px 30px rgba(0,0,0,0.06);
  }
}

.benefit-card__icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  /* #9 — icon background gradient */
  background: var(--grad-icon);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-md);
  font-size: 22px;
  color: var(--color-accent);
}

.benefit-card__title {
  font-size: 16px;
  font-weight: 600;
  margin-bottom: var(--space-sm);
}

.benefit-card__text {
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.55;
}

/* --- FAQ / Close (Section 5) --- */

.faq-list {
  max-width: 680px;
}

.faq-item {
  border-bottom: 1px solid var(--color-border);
}

.faq-item__toggle {
  width: 100%;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--space-md);
  padding: var(--space-lg) 0;
  background: none;
  border: none;
  text-align: left;
  font-size: 15px;
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
}

.faq-item__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  /* #9 — icon gradient */
  background: var(--grad-icon);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 18px;
  transition: transform 0.3s ease;
}

.faq-item[open] .faq-item__icon { transform: rotate(45deg); }

.faq-item__body {
  padding-bottom: var(--space-lg);
  font-size: 14px;
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 580px;
}

/* Final CTA band — #12 */
.cta-band {
  text-align: center;
  padding: var(--space-3xl) 0 var(--space-2xl);
  background: var(--grad-cta-band);
  color: #fff;
  border-radius: var(--radius-lg);
  margin: var(--space-xl) var(--space-md) var(--space-2xl);
  position: relative;
  overflow: hidden;
}

/* subtle inner glow matching hero overlay */
.cta-band::before {
  content: "";
  position: absolute;
  inset: 0;
  background: radial-gradient(circle at 42% 50%, rgba(255,255,255,0.06), transparent 30%);
  pointer-events: none;
}

.cta-band__title {
  margin-bottom: var(--space-md);
}

.cta-band__sub {
  color: rgba(255,255,255,0.7);
  margin-bottom: var(--space-xl);
  max-width: 500px;
  margin-inline: auto;
  line-height: 1.55;
}

.cta-band .btn--primary {
  background: rgba(255,255,255,0.95);
  color: #1d1d1f;
  box-shadow: 0 2px 12px rgba(0,0,0,0.15);
}

.cta-band .btn--primary:hover {
  background: #fff;
  box-shadow: 0 4px 20px rgba(0,0,0,0.2);
}

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

.site-footer {
  background: var(--color-text);
  color: rgba(255,255,255,0.7);
  padding: var(--space-2xl) 0 0;
}

.site-footer__inner {
  max-width: var(--max-w);
  margin-inline: auto;
  padding-inline: var(--space-md);
  display: grid;
  gap: var(--space-xl);
}

@media (min-width: 640px) {
  .site-footer__inner { grid-template-columns: 1fr 1fr 1fr; }
}

.site-brand--footer { color: #fff; }
.site-brand--footer .site-brand__mark {
  /* #4 — brand mark gradient */
  background: var(--grad-brand);
}

.site-footer__tagline {
  font-size: 14px;
  margin-top: var(--space-sm);
  color: rgba(255,255,255,0.5);
}

.site-footer__heading {
  font-size: 12px;
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: rgba(255,255,255,0.4);
  margin-bottom: var(--space-md);
}

.site-footer__col li { margin-bottom: var(--space-sm); }
.site-footer__col a {
  font-size: 14px;
  color: rgba(255,255,255,0.7);
  transition: color 0.2s;
}
.site-footer__col a:hover { color: #fff; }

.site-footer__cta-band {
  display: flex;
  flex-direction: column;
  gap: var(--space-md);
  align-items: flex-start;
}

.site-footer__cta-band p { font-size: 15px; color: rgba(255,255,255,0.8); }

.site-footer__bottom {
  margin-top: var(--space-xl);
  padding: var(--space-lg) var(--space-md);
  border-top: 1px solid rgba(255,255,255,0.08);
  text-align: center;
  font-size: 13px;
  color: rgba(255,255,255,0.35);
  max-width: var(--max-w);
  margin-inline: auto;
}

/* ==========================================================================
   PAGE TEMPLATES
   ========================================================================== */

.page-content {
  padding-top: calc(var(--header-height) + var(--space-3xl));
  padding-bottom: var(--space-2xl);
  min-height: 60vh;
}

.page-content .wrap {
  max-width: 720px;
}

.page-content h1 {
  margin-bottom: var(--space-lg);
}

.page-content p,
.page-content li {
  color: var(--color-text-muted);
  line-height: 1.7;
  margin-bottom: var(--space-md);
}

.page-content h2 {
  margin-top: var(--space-xl);
  margin-bottom: var(--space-md);
  font-size: 1.3rem;
}

/* Thank-you page */
.thankyou {
  text-align: center;
  padding-top: calc(var(--header-height) + var(--space-3xl));
  padding-bottom: var(--space-3xl);
}

.thankyou__check {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  /* #9 — icon gradient */
  background: var(--grad-icon);
  color: var(--color-accent);
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: var(--space-lg);
}

.thankyou__title { margin-bottom: var(--space-md); }

.thankyou__text {
  color: var(--color-text-muted);
  line-height: 1.6;
  max-width: 480px;
  margin-inline: auto;
  margin-bottom: var(--space-xl);
}

.thankyou__actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 12px;
}

/* ==========================================================================
   BLOG
   ========================================================================== */

.blog-grid {
  display: grid;
  gap: var(--space-lg);
}

@media (min-width: 640px) {
  .blog-grid { grid-template-columns: 1fr 1fr; }
}

.blog-card {
  border-radius: var(--radius-md);
  overflow: hidden;
  /* #11 — card gradient */
  background: var(--grad-card);
  -webkit-backdrop-filter: blur(10px);
  backdrop-filter: blur(10px);
  border: 1px solid var(--color-border);
  transition: box-shadow 0.25s ease;
}

.blog-card:hover { box-shadow: 0 4px 20px rgba(122,99,246,0.08); }

.blog-card__thumb {
  aspect-ratio: 16/9;
  background: var(--color-accent-light);
}

.blog-card__thumb img { width: 100%; height: 100%; object-fit: cover; }

.blog-card__body { padding: var(--space-lg); }
.blog-card__date { font-size: 12px; color: var(--color-text-muted); margin-bottom: var(--space-sm); }
.blog-card__title { font-size: 16px; font-weight: 600; margin-bottom: var(--space-sm); line-height: 1.35; }
.blog-card__excerpt { font-size: 14px; color: var(--color-text-muted); line-height: 1.55; }

.blog-single {
  padding-top: calc(var(--header-height) + var(--space-3xl));
  padding-bottom: var(--space-2xl);
}

.blog-single .wrap { max-width: 720px; }
.blog-single__meta { font-size: 13px; color: var(--color-text-muted); margin-bottom: var(--space-lg); }
.blog-single__content p { margin-bottom: var(--space-md); line-height: 1.7; }
.blog-single__content h2 { margin: var(--space-xl) 0 var(--space-md); }

/* Inline CTA block for posts */
.cta-inline {
  margin: var(--space-xl) 0;
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  /* #9 — soft gradient bg for inline CTA */
  background: var(--grad-icon);
  border: 1px solid rgba(45,106,79,0.10);
  text-align: center;
}

.cta-inline__text { font-size: 15px; font-weight: 500; margin-bottom: var(--space-md); }

/* Case study single — proof-first (not blog tone) */
.case-study-single {
  padding-top: calc(var(--header-height) + var(--space-3xl));
  padding-bottom: var(--space-2xl);
}

.case-study__inner {
  max-width: 720px;
}

.case-study__title {
  font-size: clamp(1.5rem, 4vw, 2rem);
  letter-spacing: -0.03em;
  line-height: 1.2;
  margin-bottom: var(--space-md);
}

.case-study__summary {
  font-size: 1.05rem;
  line-height: 1.65;
  color: var(--color-text);
  margin-bottom: var(--space-xl);
}

.case-study__summary p {
  margin-bottom: 0.65em;
}

.case-study__summary p:last-child {
  margin-bottom: 0;
}

.case-study__snapshot {
  margin-bottom: var(--space-xl);
  padding: var(--space-lg);
  border-radius: var(--radius-md);
  border: 1px solid var(--color-border);
  background: rgba(255, 255, 255, 0.6);
}

.case-study__snapshot-title {
  font-size: 0.75rem;
  font-weight: 700;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-text-muted);
  margin: 0 0 var(--space-md);
}

.case-study__snapshot-dl {
  display: grid;
  grid-template-columns: minmax(120px, 34%) 1fr;
  gap: 8px 16px;
  margin: 0;
  font-size: 0.94rem;
  line-height: 1.45;
}

.case-study__snapshot-dt {
  margin: 0;
  font-weight: 600;
  color: var(--color-text-muted);
}

.case-study__snapshot-dd {
  margin: 0;
  color: var(--color-text);
}

@media (max-width: 480px) {
  .case-study__snapshot-dl {
    grid-template-columns: 1fr;
  }

  .case-study__snapshot-dt {
    margin-top: 6px;
  }

  .case-study__snapshot-dt:first-child {
    margin-top: 0;
  }
}

.case-study__figure {
  margin: 0 0 var(--space-xl);
}

.case-study__image {
  width: 100%;
  height: auto;
  border-radius: var(--radius-md);
  vertical-align: middle;
}

.case-study__section {
  margin-bottom: var(--space-2xl);
}

.case-study__section-title {
  font-size: 1.15rem;
  font-weight: 600;
  letter-spacing: -0.02em;
  margin: 0 0 var(--space-md);
  padding-bottom: var(--space-sm);
  border-bottom: 1px solid rgba(0, 0, 0, 0.08);
}

.case-study__section-body p {
  margin-bottom: var(--space-md);
  line-height: 1.68;
}

.case-study__section-body ul,
.case-study__section-body ol {
  margin: 0 0 var(--space-md) 1.15em;
  padding: 0;
}

.case-study__cta {
  margin-top: var(--space-2xl);
  padding: var(--space-xl);
  border-radius: var(--radius-md);
  background: var(--grad-icon);
  border: 1px solid rgba(45, 106, 79, 0.12);
  text-align: center;
}

.case-study__cta-text {
  font-size: 1rem;
  font-weight: 500;
  margin: 0 0 var(--space-md);
}

.case-study-archive {
  padding-top: calc(var(--header-height) + var(--space-3xl));
  padding-bottom: var(--space-2xl);
}

.case-study-card__more {
  display: block;
  margin-top: var(--space-sm);
  font-size: 13px;
  font-weight: 600;
  color: var(--color-accent);
}

.case-study-archive__type-desc {
  margin-top: calc(var(--space-md) * -0.5);
}

.blog-card__thumb--empty {
  display: grid;
  place-items: center;
  background: linear-gradient(145deg, rgba(60, 139, 99, 0.08), rgba(122, 99, 246, 0.1));
}

.blog-card__thumb-placeholder {
  font-size: 2rem;
  font-weight: 700;
  color: var(--color-accent);
  opacity: 0.55;
  text-transform: uppercase;
}

.case-study-archive__empty-admin {
  margin-top: var(--space-lg);
  text-align: center;
}

.case-study-archive__empty-hint {
  max-width: 520px;
  margin-inline: auto;
  margin-top: var(--space-md);
  text-align: center;
  font-size: 0.9rem;
}

/* ==========================================================================
   ANIMATIONS — reveal classes (GSAP adds these)
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(24px);
}

.reveal--visible {
  opacity: 1;
  transform: translateY(0);
}

@media (prefers-reduced-motion: reduce) {
  .reveal { opacity: 1; transform: none; }
}

/* Glassmorphism cards (desktop) — #10 sticky panel treatment */
@media (min-width: 900px) {
  .glass-card {
    background: var(--grad-sticky-panel);
    -webkit-backdrop-filter: saturate(180%) blur(16px);
    backdrop-filter: saturate(180%) blur(16px);
    border: 1px solid var(--color-border);
  }
}