/* =====================================================================
   AMBI — Design System (compiled)
   Premium technical minimalism. Source: assets/scss/*
   Edit the SCSS and recompile (npm run build:css), or edit here directly.
   ===================================================================== */

/* ----------------------------------------------------------------- */
/* 1. TOKENS                                                          */
/* ----------------------------------------------------------------- */
:root {
  /* Ink / neutral ramp */
  --ambi-ink:        #0B0E14;   /* near-black, slight blue — primary text & dark surfaces */
  --ambi-ink-800:    #161B25;
  --ambi-ink-700:    #232A37;
  --ambi-ink-600:    #3A4354;
  --ambi-muted:      #5B6472;   /* secondary text */
  --ambi-muted-2:    #828B9A;
  --ambi-line:       #E5E8EE;   /* hairlines */
  --ambi-line-2:     #EEF1F5;
  --ambi-paper:      #F6F7F9;   /* cool light surface */
  --ambi-paper-2:    #FBFBFC;
  --ambi-white:      #FFFFFF;

  /* Brand accent — AMBI green. Deep enough for accessible text/buttons,
     paired with the brand gradient for decorative use. */
  --ambi-accent:     #178A52;   /* interactive: links, icons, eyebrows, buttons */
  --ambi-accent-700: #0F6B3F;   /* hover / pressed */
  --ambi-accent-50:  #E9F5EE;   /* tint backgrounds */
  --ambi-accent-ink: #0C3A24;   /* accent text on light */

  /* Brand gradient — matches the logo (teal → lime). Decorative only. */
  --ambi-grad:       linear-gradient(135deg, #46B08A 0%, #A4CE5C 100%);
  --ambi-grad-1:     #46B08A;   /* gradient teal stop  */
  --ambi-grad-2:     #A4CE5C;   /* gradient lime stop  */

  /* Positive (metrics, results) — aligned to the brand */
  --ambi-pos:        #178A52;
  --ambi-pos-50:     #E9F5EE;

  /* Dark-surface tokens */
  --ambi-on-dark:        #EAECF1;
  --ambi-on-dark-muted:  #98A2B3;
  --ambi-on-dark-line:   rgba(255,255,255,.10);

  /* Type */
  --ambi-font:  "Inter", -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --ambi-mono:  "IBM Plex Mono", ui-monospace, SFMono-Regular, "SF Mono", Menlo, Consolas, monospace;

  /* Fluid type scale (clamp: min, fluid, max) */
  --fs-eyebrow: 0.75rem;
  --fs-small:   0.875rem;
  --fs-body:    1.0625rem;
  --fs-lead:    clamp(1.125rem, 0.98rem + 0.7vw, 1.375rem);
  --fs-h4:      clamp(1.125rem, 1rem + 0.6vw, 1.375rem);
  --fs-h3:      clamp(1.375rem, 1.1rem + 1.2vw, 1.875rem);
  --fs-h2:      clamp(1.875rem, 1.4rem + 2.2vw, 3rem);
  --fs-h1:      clamp(2.5rem, 1.6rem + 4.2vw, 4.5rem);

  /* Spacing scale */
  --sp-1: 0.25rem; --sp-2: 0.5rem;  --sp-3: 0.75rem; --sp-4: 1rem;
  --sp-5: 1.5rem;  --sp-6: 2rem;    --sp-7: 3rem;    --sp-8: 4rem;
  --sp-9: 6rem;    --sp-10: 8rem;

  /* Layout */
  --container:    1200px;
  --container-sm: 820px;
  --radius:       14px;
  --radius-sm:    10px;
  --radius-lg:    20px;

  /* Effects */
  --shadow-sm: 0 1px 2px rgba(11,14,20,.04), 0 1px 3px rgba(11,14,20,.06);
  --shadow-md: 0 4px 16px rgba(11,14,20,.06), 0 2px 6px rgba(11,14,20,.05);
  --shadow-lg: 0 24px 60px rgba(11,14,20,.10), 0 8px 24px rgba(11,14,20,.06);
  --ring:      0 0 0 4px var(--ambi-accent-50);

  --ease: cubic-bezier(.22,.61,.36,1);
  --dur:  .45s;
}

/* ----------------------------------------------------------------- */
/* 2. BASE / RESET                                                    */
/* ----------------------------------------------------------------- */
*, *::before, *::after { box-sizing: border-box; }
* { margin: 0; }
html { -webkit-text-size-adjust: 100%; scroll-behavior: smooth; }
@media (prefers-reduced-motion: reduce) {
  html { scroll-behavior: auto; }
  *, *::before, *::after { animation-duration: .001ms !important; animation-iteration-count: 1 !important; transition-duration: .001ms !important; }
}
body {
  font-family: var(--ambi-font);
  font-size: var(--fs-body);
  line-height: 1.6;
  color: var(--ambi-ink);
  background: var(--ambi-white);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-rendering: optimizeLegibility;
  font-feature-settings: "cv11", "ss01";
}
img, svg, video, canvas { display: block; max-width: 100%; height: auto; }
a { color: inherit; text-decoration: none; }
button { font: inherit; cursor: pointer; }
ul, ol { padding: 0; list-style: none; }
:focus-visible { outline: 2px solid var(--ambi-accent); outline-offset: 3px; border-radius: 4px; }
::selection { background: var(--ambi-accent); color: #fff; }

/* ----------------------------------------------------------------- */
/* 3. TYPOGRAPHY                                                      */
/* ----------------------------------------------------------------- */
h1, h2, h3, h4 { line-height: 1.08; letter-spacing: -0.02em; font-weight: 600; color: var(--ambi-ink); }
h1 { font-size: var(--fs-h1); letter-spacing: -0.035em; }
h2 { font-size: var(--fs-h2); letter-spacing: -0.028em; }
h3 { font-size: var(--fs-h3); }
h4 { font-size: var(--fs-h4); line-height: 1.2; }
p  { color: var(--ambi-ink); }

.ambi-eyebrow {
  display: inline-flex; align-items: center; gap: .5rem;
  font-family: var(--ambi-mono);
  font-size: var(--fs-eyebrow);
  font-weight: 500;
  letter-spacing: .14em;
  text-transform: uppercase;
  color: var(--ambi-accent);
}
.ambi-eyebrow::before {
  content: ""; width: 18px; height: 1px; background: var(--ambi-accent); opacity: .6;
}
.ambi-eyebrow--plain::before { display: none; }

.ambi-lead { font-size: var(--fs-lead); line-height: 1.5; color: var(--ambi-muted); font-weight: 400; }
.is-dark .ambi-lead { color: var(--ambi-on-dark-muted); }

.ambi-muted { color: var(--ambi-muted); }

/* ----------------------------------------------------------------- */
/* 4. LAYOUT                                                          */
/* ----------------------------------------------------------------- */
.ambi-container { width: 100%; max-width: var(--container); margin-inline: auto; padding-inline: var(--sp-5); }
.ambi-container--sm { max-width: var(--container-sm); }

.ambi-section { padding-block: clamp(3.5rem, 2rem + 6vw, 7rem); position: relative; }
.ambi-section--tight { padding-block: clamp(2.5rem, 1.5rem + 4vw, 5rem); }

.is-dark { background: var(--ambi-ink); color: var(--ambi-on-dark); }
.is-dark h1, .is-dark h2, .is-dark h3, .is-dark h4 { color: #fff; }
.is-dark p { color: var(--ambi-on-dark); }
.is-paper { background: var(--ambi-paper); }

.ambi-grid { display: grid; gap: var(--sp-5); }
@media (min-width: 720px) {
  .ambi-grid--2 { grid-template-columns: repeat(2, 1fr); }
  .ambi-grid--3 { grid-template-columns: repeat(3, 1fr); }
  .ambi-grid--4 { grid-template-columns: repeat(2, 1fr); }
}
@media (min-width: 1000px) {
  .ambi-grid--4 { grid-template-columns: repeat(4, 1fr); }
}

/* Section heading block */
.ambi-section-head { max-width: 720px; }
.ambi-section-head > * + * { margin-top: var(--sp-4); }
.ambi-section-head--center { margin-inline: auto; text-align: center; }
.ambi-section-head--center .ambi-eyebrow { justify-content: center; }

/* Blueprint grid backdrop (systems motif) */
.ambi-blueprint {
  position: absolute; inset: 0; pointer-events: none; z-index: 0;
  background-image:
    linear-gradient(var(--ambi-on-dark-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--ambi-on-dark-line) 1px, transparent 1px);
  background-size: 48px 48px;
  -webkit-mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
          mask-image: radial-gradient(ellipse 80% 60% at 50% 0%, #000 30%, transparent 75%);
  opacity: .5;
}
.ambi-blueprint--light {
  background-image:
    linear-gradient(var(--ambi-line) 1px, transparent 1px),
    linear-gradient(90deg, var(--ambi-line) 1px, transparent 1px);
}

/* ----------------------------------------------------------------- */
/* 5. BUTTONS                                                         */
/* ----------------------------------------------------------------- */
.ambi-btn {
  display: inline-flex; align-items: center; gap: .55rem;
  padding: .85rem 1.35rem;
  font-size: var(--fs-small); font-weight: 500; letter-spacing: -0.01em;
  border-radius: 10px; border: 1px solid transparent;
  transition: transform var(--dur) var(--ease), background-color .2s, border-color .2s, box-shadow .2s;
  will-change: transform; white-space: nowrap;
}
.ambi-btn svg { width: 16px; height: 16px; transition: transform .25s var(--ease); }
.ambi-btn:hover svg { transform: translateX(3px); }

.ambi-btn--primary { background: var(--ambi-accent); color: #fff; box-shadow: var(--shadow-sm); }
.ambi-btn--primary:hover { background: var(--ambi-accent-700); box-shadow: var(--shadow-md); }

.ambi-btn--ghost { background: transparent; color: var(--ambi-ink); border-color: var(--ambi-line); }
.ambi-btn--ghost:hover { border-color: var(--ambi-ink); background: var(--ambi-white); }
.is-dark .ambi-btn--ghost { color: #fff; border-color: var(--ambi-on-dark-line); }
.is-dark .ambi-btn--ghost:hover { border-color: rgba(255,255,255,.4); background: rgba(255,255,255,.04); }

.ambi-btn--light { background: #fff; color: var(--ambi-ink); }
.ambi-btn--light:hover { box-shadow: var(--shadow-md); transform: translateY(-1px); }

/* Lime surface — the lemon side of the brand (logo lime stop). Used for the
   final CTA band: bright, distinct from the dark footer, with dark text. */
.is-lime { background: var(--ambi-grad-2); color: var(--ambi-accent-ink); }
.is-lime h1, .is-lime h2, .is-lime h3, .is-lime h4 { color: var(--ambi-ink); }
.is-lime p, .is-lime .ambi-lead { color: var(--ambi-accent-ink); }
.is-lime .ambi-eyebrow { color: var(--ambi-accent-ink); border-color: rgba(11,14,20,.3); }
.is-lime .ambi-blueprint {
  background-image:
    linear-gradient(rgba(11,14,20,.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(11,14,20,.08) 1px, transparent 1px);
}
.is-lime .ambi-btn--primary { background: var(--ambi-ink); color: #fff; box-shadow: var(--shadow-md); }
.is-lime .ambi-btn--primary:hover { background: var(--ambi-ink-800); transform: translateY(-1px); }
.is-lime .ambi-btn--ghost { color: var(--ambi-ink); border-color: rgba(11,14,20,.3); }
.is-lime .ambi-btn--ghost:hover { border-color: var(--ambi-ink); background: rgba(11,14,20,.06); }

.ambi-btn--lg { padding: 1rem 1.6rem; font-size: 1rem; }

.ambi-link {
  display: inline-flex; align-items: center; gap: .4rem;
  font-weight: 500; font-size: var(--fs-small); color: var(--ambi-accent);
}
.ambi-link svg { width: 15px; transition: transform .25s var(--ease); }
.ambi-link:hover svg { transform: translateX(3px); }

/* ----------------------------------------------------------------- */
/* 6. CARDS & COMPONENTS                                              */
/* ----------------------------------------------------------------- */
.ambi-card {
  background: var(--ambi-white);
  border: 1px solid var(--ambi-line);
  border-radius: var(--radius);
  padding: var(--sp-6);
  position: relative;
  transition: border-color .25s, box-shadow .25s, transform var(--dur) var(--ease);
}
.ambi-card--hover:hover { border-color: var(--ambi-line); box-shadow: var(--shadow-md); transform: translateY(-3px); }
.is-paper .ambi-card { box-shadow: var(--shadow-sm); }

.ambi-card__icon {
  width: 44px; height: 44px; border-radius: 11px;
  display: grid; place-items: center;
  background: var(--ambi-accent-50); color: var(--ambi-accent);
  margin-bottom: var(--sp-5);
}
.ambi-card__icon svg { width: 22px; height: 22px; }
.ambi-card h3, .ambi-card h4 { margin-bottom: var(--sp-3); }
.ambi-card p { color: var(--ambi-muted); font-size: var(--fs-small); line-height: 1.55; }

/* Outcome pillar */
.ambi-pillar { padding-block: var(--sp-2); }
.ambi-pillar__kicker {
  font-family: var(--ambi-mono); font-size: var(--fs-eyebrow);
  letter-spacing: .12em; text-transform: uppercase; color: var(--ambi-muted-2);
}
.ambi-pillar h3 { font-size: var(--fs-h4); margin: var(--sp-4) 0 var(--sp-3); }
.ambi-pillar p { color: var(--ambi-muted); font-size: var(--fs-small); }
.ambi-pillar__num { font-family: var(--ambi-mono); color: var(--ambi-accent); font-size: var(--fs-small); }

/* Numbered list / dividers */
.ambi-divider { height: 1px; background: var(--ambi-line); border: 0; }
.is-dark .ambi-divider { background: var(--ambi-on-dark-line); }

/* Metric */
.ambi-metric { display: flex; flex-direction: column; gap: .25rem; }
.ambi-metric__value { font-size: clamp(2rem, 1.4rem + 2vw, 3rem); font-weight: 600; letter-spacing: -.03em; color: var(--ambi-ink); }
.is-dark .ambi-metric__value { color: #fff; }
.ambi-metric__value .ambi-metric__sym { color: var(--ambi-accent); }
.ambi-metric__label { font-size: var(--fs-small); color: var(--ambi-muted); }
.is-dark .ambi-metric__label { color: var(--ambi-on-dark-muted); }

/* Pill / tag */
.ambi-tag {
  display: inline-flex; align-items: center; gap: .4rem;
  font-family: var(--ambi-mono); font-size: .72rem; letter-spacing: .06em;
  padding: .3rem .6rem; border-radius: 999px;
  background: var(--ambi-accent-50); color: var(--ambi-accent);
}

/* ----------------------------------------------------------------- */
/* 7. HEADER / NAV                                                    */
/* ----------------------------------------------------------------- */
.ambi-header {
  position: sticky; top: 0; z-index: 60;
  background: rgba(255,255,255,.72);
  backdrop-filter: saturate(160%) blur(14px);
  -webkit-backdrop-filter: saturate(160%) blur(14px);
  border-bottom: 1px solid transparent;
  transition: border-color .3s, background .3s;
}
.ambi-header.is-stuck { border-bottom-color: var(--ambi-line); }
.ambi-header__inner { display: flex; align-items: center; gap: var(--sp-6); height: 70px; }
.ambi-logo { display: inline-flex; align-items: center; gap: .55rem; font-weight: 600; letter-spacing: -.04em; font-size: 1.25rem; color: var(--ambi-ink); }
.ambi-logo__mark { width: 26px; height: 26px; flex-shrink: 0; }
.ambi-logo__img  { max-height: 38px; width: auto; display: block; }
.ambi-nav { display: none; gap: var(--sp-6); margin-left: auto; }
.ambi-nav a { font-size: var(--fs-small); font-weight: 500; color: var(--ambi-ink-700); transition: color .2s; }
.ambi-nav a:hover { color: var(--ambi-ink); }
.ambi-header__cta { display: none; gap: .6rem; align-items: center; }
.ambi-burger { margin-left: auto; display: inline-grid; place-items: center; width: 42px; height: 42px; border-radius: 10px; border: 1px solid var(--ambi-line); background: #fff; }
.ambi-burger span { display: block; width: 18px; height: 1.5px; background: var(--ambi-ink); position: relative; }
.ambi-burger span::before, .ambi-burger span::after { content: ""; position: absolute; left: 0; width: 18px; height: 1.5px; background: var(--ambi-ink); }
.ambi-burger span::before { top: -5px; } .ambi-burger span::after { top: 5px; }

@media (min-width: 960px) {
  .ambi-nav, .ambi-header__cta { display: flex; }
  .ambi-burger { display: none; }
  .ambi-header__cta { margin-left: 0; }
  .ambi-nav { margin-left: auto; margin-right: var(--sp-5); }
}

/* Mobile drawer */
.ambi-drawer { position: fixed; inset: 70px 0 0; background: #fff; z-index: 55; padding: var(--sp-6) var(--sp-5); transform: translateY(-8px); opacity: 0; pointer-events: none; transition: opacity .25s, transform .25s; }
.ambi-drawer.is-open { opacity: 1; transform: none; pointer-events: auto; }
.ambi-drawer a { display: block; padding: var(--sp-4) 0; font-size: 1.25rem; font-weight: 500; border-bottom: 1px solid var(--ambi-line); }
.ambi-drawer .ambi-btn { width: 100%; justify-content: center; margin-top: var(--sp-5); }

/* ----------------------------------------------------------------- */
/* 8. HERO                                                            */
/* ----------------------------------------------------------------- */
.ambi-hero { position: relative; overflow: hidden; padding-block: clamp(3rem, 2rem + 6vw, 6.5rem); }
.ambi-hero__grid { display: grid; gap: var(--sp-7); align-items: center; }
@media (min-width: 1000px) { .ambi-hero__grid { grid-template-columns: 1.05fr 1fr; gap: var(--sp-8); } }
.ambi-hero h1 { margin: var(--sp-5) 0; }
.ambi-hero .ambi-lead { max-width: 30ch; }
.ambi-hero__cta { display: flex; flex-wrap: wrap; gap: var(--sp-3); margin-top: var(--sp-6); }
.ambi-hero__trust { margin-top: var(--sp-7); display: flex; flex-wrap: wrap; align-items: center; gap: var(--sp-3) var(--sp-6); color: var(--ambi-muted); font-size: var(--fs-small); }
.ambi-hero__trust strong { color: var(--ambi-ink); font-weight: 600; }

/* Hero diagram panel */
.ambi-diagram {
  position: relative; border-radius: var(--radius-lg);
  background: var(--ambi-ink); color: var(--ambi-on-dark);
  border: 1px solid var(--ambi-ink-700);
  box-shadow: var(--shadow-lg);
  overflow: hidden;
}
.ambi-diagram__bar { display: flex; align-items: center; gap: .45rem; padding: .8rem 1rem; border-bottom: 1px solid var(--ambi-on-dark-line); }
.ambi-diagram__dot { width: 9px; height: 9px; border-radius: 50%; background: var(--ambi-ink-600); }
.ambi-diagram__title { margin-left: .6rem; font-family: var(--ambi-mono); font-size: .72rem; letter-spacing: .08em; color: var(--ambi-on-dark-muted); }
.ambi-diagram__body { padding: clamp(1rem, .5rem + 2vw, 1.75rem); }

/* animated flow svg strokes */
.flow-path { stroke-dasharray: 6 8; animation: flowdash 1.6s linear infinite; }
@keyframes flowdash { to { stroke-dashoffset: -28; } }
.flow-node { opacity: 0; transform-box: fill-box; transform-origin: center; animation: nodepop .5s var(--ease) forwards; }
.flow-node--1 { animation-delay: .15s; } .flow-node--2 { animation-delay: .45s; }
.flow-node--3 { animation-delay: .75s; } .flow-node--4 { animation-delay: 1.05s; }
.flow-node--5 { animation-delay: 1.35s; }
@keyframes nodepop { from { opacity: 0; transform: translateY(6px) scale(.96); } to { opacity: 1; transform: none; } }
.flow-pulse { animation: pulse 2.4s ease-in-out infinite; }
@keyframes pulse { 0%,100% { opacity: .4; } 50% { opacity: 1; } }

/* ----------------------------------------------------------------- */
/* 9. PROCESS (How it works)                                          */
/* ----------------------------------------------------------------- */
.ambi-steps { counter-reset: step; display: grid; gap: var(--sp-5); }
@media (min-width: 900px) { .ambi-steps { grid-template-columns: repeat(4, 1fr); } }
.ambi-step { position: relative; padding-top: var(--sp-6); }
.ambi-step::before {
  counter-increment: step; content: "0" counter(step);
  font-family: var(--ambi-mono); font-size: var(--fs-small); color: var(--ambi-accent);
  position: absolute; top: 0; left: 0;
}
.ambi-step__rule { height: 1px; background: var(--ambi-line); margin-bottom: var(--sp-5); position: relative; }
.ambi-step__rule::after { content: ""; position: absolute; left: 0; top: -2px; width: 5px; height: 5px; border-radius: 50%; background: var(--ambi-accent); }
.is-dark .ambi-step__rule { background: var(--ambi-on-dark-line); }
.ambi-step h3 { font-size: var(--fs-h4); margin-bottom: var(--sp-3); }
.ambi-step p { color: var(--ambi-muted); font-size: var(--fs-small); }
.is-dark .ambi-step p { color: var(--ambi-on-dark-muted); }

/* ----------------------------------------------------------------- */
/* 10. SOLUTIONS                                                      */
/* ----------------------------------------------------------------- */
.ambi-solution {
  display: grid; gap: var(--sp-6); align-items: start;
  padding: var(--sp-6);
  background: var(--ambi-white);
  border: 1px solid var(--ambi-line-2);
  border-radius: var(--radius-lg);
  box-shadow: 0 4px 12px rgba(11,14,20,.03), 0 1px 3px rgba(11,14,20,.02);
  transition: transform var(--dur) var(--ease), box-shadow var(--dur) var(--ease), border-color var(--dur) var(--ease);
  position: relative;
  overflow: hidden;
}
.ambi-solution::before {
  content: "";
  position: absolute;
  top: 0; left: 0; right: 0; height: 4px;
  background: var(--ambi-grad);
  opacity: 0;
  transition: opacity var(--dur) var(--ease);
}
.ambi-solution:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-md);
  border-color: var(--ambi-line);
}
.ambi-solution:hover::before {
  opacity: 1;
}
@media (min-width: 900px) { 
  .ambi-solution { 
    grid-template-columns: 0.9fr 1.1fr; 
    gap: var(--sp-8); 
    padding: var(--sp-7);
  } 
}
.ambi-solution__meta .ambi-tag { 
  margin-bottom: var(--sp-4); 
  background: var(--ambi-paper-2);
  border: 1px solid var(--ambi-line);
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease), color var(--dur) var(--ease);
}
.ambi-solution:hover .ambi-solution__meta .ambi-tag {
  background: var(--ambi-accent-50);
  border-color: var(--ambi-accent-50);
  color: var(--ambi-accent-700);
}
.ambi-solution:hover .ambi-solution__meta .ambi-tag svg {
  color: var(--ambi-accent-700);
}

.ambi-solution h3 { 
  margin-bottom: var(--sp-4); 
  font-size: var(--fs-h3);
  font-weight: 600;
  letter-spacing: -0.01em;
  transition: color var(--dur) var(--ease);
}
.ambi-solution:hover h3 {
  color: var(--ambi-accent-700);
}

.ambi-solution__cols { display: grid; gap: var(--sp-5); }
@media (min-width: 620px) { .ambi-solution__cols { grid-template-columns: 1fr 1fr; } }

.ambi-solution__block {
  padding: var(--sp-4);
  background: var(--ambi-paper-2);
  border-radius: var(--radius-sm);
  border: 1px solid var(--ambi-line-2);
  transition: background-color var(--dur) var(--ease), border-color var(--dur) var(--ease);
  height: 100%;
}
.ambi-solution:hover .ambi-solution__block {
  background: var(--ambi-white);
  border-color: var(--ambi-line);
}

.ambi-solution__block h4 { 
  font-size: 0.95rem; 
  margin-bottom: var(--sp-3); 
  display: flex; align-items: center; gap: .5rem; 
  font-weight: 600;
  color: var(--ambi-ink-700);
}
.ambi-solution__block h4 .dot { 
  width: 6px; height: 6px; border-radius: 50%; 
  background: var(--ambi-muted-2); 
  transition: background-color var(--dur) var(--ease); 
}
.ambi-solution:hover .ambi-solution__block h4 .dot { background: var(--ambi-accent); }

.ambi-solution__block p, .ambi-solution__block li { color: var(--ambi-muted); font-size: 0.95rem; line-height: 1.5; }
.ambi-solution__outcomes li { display: flex; gap: .6rem; padding: .4rem 0; border-bottom: 1px dashed var(--ambi-line-2); }
.ambi-solution__outcomes li:last-child { border-bottom: none; }
.ambi-solution__outcomes li svg { width: 16px; flex: none; color: var(--ambi-muted-2); margin-top: .2rem; transition: color var(--dur) var(--ease); }
.ambi-solution:hover .ambi-solution__outcomes li svg { color: var(--ambi-pos); }

/* ----------------------------------------------------------------- */
/* 11. CASE STUDIES                                                   */
/* ----------------------------------------------------------------- */
/* Poster card — tall, image-led, text overlaid (archive grid + carousel) */
.ambi-poster {
  position: relative; display: block; overflow: hidden; isolation: isolate;
  border-radius: var(--radius); aspect-ratio: 3 / 4; min-height: 360px;
  background: var(--ambi-ink-800);
  transition: transform var(--dur) var(--ease), box-shadow .25s;
}
.ambi-poster:hover { transform: translateY(-4px); box-shadow: 0 18px 40px rgba(0,0,0,.45); }
.ambi-poster__img { position: absolute; inset: 0; width: 100%; height: 100%; object-fit: cover; z-index: 0; }
.ambi-poster__overlay {
  position: absolute; inset: 0; z-index: 1;
  background: linear-gradient(180deg, rgba(11,14,20,.82) 0%, rgba(11,14,20,.30) 34%, rgba(11,14,20,0) 58%, rgba(11,14,20,.20) 100%);
}
.ambi-poster__content { position: absolute; inset: 0; z-index: 2; padding: var(--sp-5); display: flex; flex-direction: column; gap: var(--sp-3); }
.ambi-poster__client { font-family: var(--ambi-mono); font-size: .72rem; letter-spacing: .12em; text-transform: uppercase; color: rgba(255,255,255,.85); }
.ambi-poster__title { color: #fff; font-size: var(--fs-h4); line-height: 1.2; margin: 0; max-width: 18ch; }
.ambi-poster__cta { margin-top: .15rem; display: inline-flex; align-items: center; gap: .4rem; font-size: var(--fs-small); font-weight: 500; color: #fff; }
.ambi-poster__cta svg { transition: transform .25s var(--ease); }
.ambi-poster:hover .ambi-poster__cta svg { transform: translateX(3px); }
/* Larger landscape feature variant (single case study on the homepage) */
.ambi-poster--feature { aspect-ratio: auto; height: clamp(380px, 38vw, 540px); min-height: 0; }
.ambi-poster--feature .ambi-poster__content { padding: var(--sp-7); }
.ambi-poster--feature .ambi-poster__title { font-size: var(--fs-h3); max-width: 22ch; }

/* Brand-tinted fallbacks for cards without a featured image */
.ambi-poster--g1 { background: linear-gradient(160deg, #1f9159, #0d3a23); }
.ambi-poster--g2 { background: linear-gradient(160deg, #46b08a, #15543a); }
.ambi-poster--g3 { background: linear-gradient(160deg, #a4ce5c, #3f7d2a); }
.ambi-poster--g4 { background: linear-gradient(160deg, #2a3340, #0b0e14); }

/* Archive grid (up to 4-up) */
.ambi-posters { display: grid; gap: var(--sp-5); grid-template-columns: 1fr; }
@media (min-width: 560px) { .ambi-posters { grid-template-columns: repeat(2, 1fr); } }
@media (min-width: 980px) { .ambi-posters { grid-template-columns: repeat(4, 1fr); } }

/* Homepage carousel: heading aside + horizontal track */
.ambi-carousel { display: grid; gap: var(--sp-6); }
@media (min-width: 900px) { .ambi-carousel { grid-template-columns: 300px 1fr; align-items: center; } }
.ambi-carousel__intro > * + * { margin-top: var(--sp-4); }
.ambi-carousel__intro .ambi-link { display: inline-flex; }
.ambi-carousel__nav { display: flex; gap: .6rem; margin-top: var(--sp-5); }
.ambi-carousel__btn {
  width: 46px; height: 46px; border-radius: 50%; border: 1px solid var(--ambi-on-dark-line);
  background: transparent; color: #fff; display: grid; place-items: center; cursor: pointer;
  transition: background .2s, border-color .2s, opacity .2s;
}
.ambi-carousel__btn:hover { background: rgba(255,255,255,.08); border-color: rgba(255,255,255,.4); }
.ambi-carousel__btn[disabled] { opacity: .3; cursor: default; }
.ambi-carousel__btn--prev svg { transform: rotate(180deg); }
.ambi-carousel__track {
  display: grid; grid-auto-flow: column; grid-auto-columns: 80%; gap: var(--sp-5);
  overflow-x: auto; scroll-snap-type: x mandatory; scroll-behavior: smooth;
  padding-bottom: var(--sp-2); scrollbar-width: none; -ms-overflow-style: none;
}
.ambi-carousel__track::-webkit-scrollbar { display: none; }
.ambi-carousel__track > * { scroll-snap-align: start; }
@media (min-width: 680px) { .ambi-carousel__track { grid-auto-columns: 42%; } }
@media (min-width: 1100px) { .ambi-carousel__track { grid-auto-columns: 31%; } }

/* ----------------------------------------------------------------- */
/* 12. AUDIT BLOCK                                                    */
/* ----------------------------------------------------------------- */
.ambi-audit { position: relative; overflow: hidden; }
.ambi-audit__card {
  background: linear-gradient(135deg, var(--ambi-ink) 0%, #10162A 100%);
  border-radius: var(--radius-lg); padding: clamp(2rem, 1rem + 4vw, 4rem);
  color: var(--ambi-on-dark); position: relative; overflow: hidden;
}
.ambi-audit__grid { display: grid; gap: var(--sp-7); position: relative; z-index: 1; }
@media (min-width: 900px) { .ambi-audit__grid { grid-template-columns: 1.1fr .9fr; } }
.ambi-audit__list { display: grid; gap: var(--sp-3); }
.ambi-audit__list li { display: flex; gap: .65rem; align-items: flex-start; font-size: var(--fs-small); }
.ambi-audit__list svg { width: 18px; flex: none; color: var(--ambi-accent); margin-top: .15rem; }
.ambi-audit__panel { background: rgba(255,255,255,.04); border: 1px solid var(--ambi-on-dark-line); border-radius: var(--radius); padding: var(--sp-6); }
.ambi-audit__panel .ambi-price { font-size: 2.2rem; font-weight: 600; letter-spacing: -.03em; color: #fff; }
.ambi-audit__panel .ambi-price small { font-size: 1rem; font-weight: 400; color: var(--ambi-on-dark-muted); }

/* ----------------------------------------------------------------- */
/* 13. CTA / FOOTER                                                   */
/* ----------------------------------------------------------------- */
.ambi-finalcta { text-align: center; }
.ambi-finalcta h2 { max-width: 16ch; margin: 0 auto var(--sp-5); }
.ambi-finalcta .ambi-hero__cta { justify-content: center; }

.ambi-footer { background: var(--ambi-ink); color: var(--ambi-on-dark-muted); padding-block: var(--sp-8) var(--sp-6); }
.ambi-footer__grid { display: grid; gap: var(--sp-7); }
@media (min-width: 760px) { .ambi-footer__grid { grid-template-columns: 1.6fr 1fr 1fr 1fr; } }
.ambi-footer h4 { color: #fff; font-size: var(--fs-small); margin-bottom: var(--sp-4); font-weight: 600; }
.ambi-footer a { display: block; padding: .3rem 0; font-size: var(--fs-small); color: var(--ambi-on-dark-muted); transition: color .2s; }
.ambi-footer a:hover { color: #fff; }
.ambi-footer__brand p { color: var(--ambi-on-dark-muted); font-size: var(--fs-small); max-width: 32ch; margin-top: var(--sp-4); }
.ambi-footer__address { display: flex; align-items: flex-start; gap: .5rem; font-style: normal; font-size: var(--fs-small); color: var(--ambi-on-dark-muted); margin-top: var(--sp-4); }
.ambi-footer__bottom { margin-top: var(--sp-8); padding-top: var(--sp-5); border-top: 1px solid var(--ambi-on-dark-line); display: flex; flex-wrap: wrap; gap: var(--sp-4); justify-content: space-between; font-size: var(--fs-small); }

/* Minimal footer: only the copyright bar (link columns toggled off). */
.ambi-footer--minimal { padding-block: var(--sp-6); }
.ambi-footer--minimal .ambi-footer__bottom { margin-top: 0; padding-top: 0; border-top: 0; }

/* ----------------------------------------------------------------- */
/* 14. FORMS                                                          */
/* ----------------------------------------------------------------- */
.ambi-form { display: grid; gap: var(--sp-5); }
.ambi-field { display: grid; gap: .45rem; }
.ambi-field label { font-size: var(--fs-small); font-weight: 500; }
.ambi-field input, .ambi-field select, .ambi-field textarea {
  width: 100%; padding: .8rem 1rem; font: inherit; font-size: var(--fs-small);
  border: 1px solid var(--ambi-line); border-radius: var(--radius-sm); background: #fff; color: var(--ambi-ink);
  transition: border-color .2s, box-shadow .2s;
}
.ambi-field input:focus, .ambi-field select:focus, .ambi-field textarea:focus { outline: none; border-color: var(--ambi-accent); box-shadow: var(--ring); }
.ambi-field--2 { display: grid; gap: var(--sp-5); }
@media (min-width: 620px) { .ambi-field--2 { grid-template-columns: 1fr 1fr; } }

/* ----------------------------------------------------------------- */
/* 15. ARTICLE / INSIGHTS                                             */
/* ----------------------------------------------------------------- */
.ambi-article { max-width: 720px; margin-inline: auto; }
.ambi-article p, .ambi-article li { font-size: 1.125rem; line-height: 1.75; color: var(--ambi-ink-700); }
.ambi-article > * + * { margin-top: var(--sp-5); }
.ambi-article h2 { margin-top: var(--sp-7); }
.ambi-article h3 { margin-top: var(--sp-6); }
.ambi-article ul { list-style: disc; padding-left: 1.2rem; }
.ambi-article blockquote { border-left: 3px solid var(--ambi-accent); padding-left: var(--sp-5); font-size: var(--fs-lead); color: var(--ambi-ink); font-style: italic; }

.ambi-postcard { border: 1px solid var(--ambi-line); border-radius: var(--radius); overflow: hidden; background: #fff; transition: box-shadow .25s, transform var(--dur) var(--ease); }
.ambi-postcard:hover { box-shadow: var(--shadow-md); transform: translateY(-3px); }
.ambi-postcard__body { padding: var(--sp-6); }
.ambi-postcard__cat { font-family: var(--ambi-mono); font-size: .72rem; letter-spacing: .08em; text-transform: uppercase; color: var(--ambi-accent); }
.ambi-postcard h3 { font-size: var(--fs-h4); margin: var(--sp-3) 0; }
.ambi-postcard p { color: var(--ambi-muted); font-size: var(--fs-small); }
.ambi-postcard__meta { margin-top: var(--sp-4); font-size: .8rem; color: var(--ambi-muted-2); }

/* Page hero (interior pages) */
.ambi-pagehero { padding-block: clamp(3rem, 2rem + 5vw, 6rem) clamp(2rem,1.5rem+3vw,3.5rem); }
.ambi-pagehero h1 { margin: var(--sp-5) 0; max-width: 16ch; }
.ambi-pagehero .ambi-lead { max-width: 56ch; }

/* ----------------------------------------------------------------- */
/* 16. UTILITIES & MOTION                                             */
/* ----------------------------------------------------------------- */
.u-mt-0 { margin-top: 0; } .u-mt-4 { margin-top: var(--sp-4); } .u-mt-6 { margin-top: var(--sp-6); }
.u-center { text-align: center; }
.u-rel { position: relative; z-index: 1; }
.u-flex { display: flex; gap: var(--sp-3); flex-wrap: wrap; align-items: center; }

[data-reveal] { opacity: 0; transform: translateY(16px); transition: opacity .7s var(--ease), transform .7s var(--ease); }
[data-reveal].is-in { opacity: 1; transform: none; }
[data-reveal][data-reveal-delay="1"] { transition-delay: .08s; }
[data-reveal][data-reveal-delay="2"] { transition-delay: .16s; }
[data-reveal][data-reveal-delay="3"] { transition-delay: .24s; }

.skip-link { position: absolute; left: -999px; top: 0; background: var(--ambi-ink); color: #fff; padding: .6rem 1rem; z-index: 100; border-radius: 0 0 8px 0; }
.skip-link:focus { left: 0; }

/* ----------------------------------------------------------------- */
/* 17. AI GROWTH AUDIT (landing funnel)                              */
/* ----------------------------------------------------------------- */

/* Numbered value cards */
.ambi-value { counter-reset: v; }
.ambi-value__card { position: relative; }
.ambi-value__card .ambi-card__icon { background: var(--ambi-accent-50); }
.ambi-value__num {
  position: absolute; top: var(--sp-6); right: var(--sp-6);
  font-family: var(--ambi-mono); font-size: var(--fs-small); color: var(--ambi-muted-2);
}

/* Who this is for — two columns */
.ambi-fit { display: grid; gap: var(--sp-5); }
@media (min-width: 820px) { .ambi-fit { grid-template-columns: 1fr 1fr; gap: var(--sp-6); } }
.ambi-fit__col { border: 1px solid var(--ambi-line); border-radius: var(--radius); padding: var(--sp-6); background: #fff; }
.ambi-fit__col--good { border-color: rgba(23,138,82,.35); background: var(--ambi-accent-50); }
.ambi-fit__col h3 { font-size: var(--fs-h4); margin-bottom: var(--sp-5); display: flex; align-items: center; gap: .5rem; }
.ambi-fit__list li { display: flex; gap: .65rem; align-items: flex-start; padding: .45rem 0; font-size: var(--fs-small); }
.ambi-fit__list svg { width: 18px; height: 18px; flex: none; margin-top: .12rem; }
.ambi-fit__col--good svg { color: var(--ambi-accent); }
.ambi-fit__col--no svg { color: var(--ambi-muted-2); }

/* Multi-step form shell */
.ambi-apply { background: #fff; border: 1px solid var(--ambi-line); border-radius: var(--radius-lg); box-shadow: var(--shadow-md); overflow: hidden; }
.ambi-apply__head { padding: var(--sp-6) var(--sp-6) 0; }
.ambi-apply__bar { display: flex; gap: .4rem; margin-top: var(--sp-5); }
.ambi-apply__bar span { flex: 1; height: 4px; border-radius: 99px; background: var(--ambi-line); transition: background .3s; }
.ambi-apply__bar span.is-done { background: var(--ambi-accent); }
.ambi-apply__count { font-family: var(--ambi-mono); font-size: var(--fs-eyebrow); letter-spacing: .1em; text-transform: uppercase; color: var(--ambi-muted-2); }
.ambi-apply__body { padding: var(--sp-6); }

.ambi-fstep { display: none; }
.ambi-fstep.is-active { display: block; animation: fstepin .35s var(--ease); }
@keyframes fstepin { from { opacity: 0; transform: translateY(8px); } to { opacity: 1; transform: none; } }
.ambi-fstep__title { font-size: var(--fs-h4); margin-bottom: .35rem; }
.ambi-fstep__sub { color: var(--ambi-muted); font-size: var(--fs-small); margin-bottom: var(--sp-5); }

.ambi-apply .ambi-field input,
.ambi-apply .ambi-field select,
.ambi-apply .ambi-field textarea { font-size: 16px; } /* prevent iOS zoom */
.ambi-field__err { color: #C0392B; font-size: .8rem; display: none; }
.ambi-field.is-error input, .ambi-field.is-error select { border-color: #C0392B; }
.ambi-field.is-error .ambi-field__err { display: block; }

/* Inline form status (contact form) */
.ambi-form__status { font-size: var(--fs-small); margin: 0; }
.ambi-form__status:empty { display: none; }
.ambi-form__status.is-err { color: #C0392B; }
.ambi-form__status.is-ok { color: var(--ambi-accent); }

/* Choice chips (checkbox / radio) */
.ambi-choices { display: grid; gap: var(--sp-3); }
@media (min-width: 620px) { .ambi-choices--2 { grid-template-columns: 1fr 1fr; } }
.ambi-choice { position: relative; display: flex; align-items: center; gap: .65rem; padding: .8rem 1rem; border: 1px solid var(--ambi-line); border-radius: var(--radius-sm); cursor: pointer; font-size: var(--fs-small); transition: border-color .2s, background .2s; }
.ambi-choice:hover { border-color: var(--ambi-muted-2); }
.ambi-choice input { position: absolute; opacity: 0; pointer-events: none; }
.ambi-choice__box { width: 20px; height: 20px; border: 1.5px solid var(--ambi-line); border-radius: 6px; flex: none; display: grid; place-items: center; transition: all .2s; }
.ambi-choice__box svg { width: 13px; height: 13px; color: #fff; opacity: 0; }
.ambi-choice input[type=radio] + .ambi-choice__box { border-radius: 50%; }
.ambi-choice:has(input:checked) { border-color: var(--ambi-accent); background: var(--ambi-accent-50); }
.ambi-choice:has(input:checked) .ambi-choice__box { background: var(--ambi-accent); border-color: var(--ambi-accent); }
.ambi-choice:has(input:checked) .ambi-choice__box svg { opacity: 1; }

.ambi-apply__nav { display: flex; justify-content: space-between; gap: var(--sp-4); margin-top: var(--sp-6); padding-top: var(--sp-5); border-top: 1px solid var(--ambi-line); }
.ambi-apply__nav .ambi-btn--back { visibility: hidden; }
.ambi-apply__nav.show-back .ambi-btn--back { visibility: visible; }
.ambi-apply__reassure { font-size: var(--fs-small); color: var(--ambi-muted); text-align: center; margin-top: var(--sp-5); }
.ambi-apply__reassure svg { width: 15px; vertical-align: -2px; color: var(--ambi-accent); }

/* Honeypot */
.ambi-hp { position: absolute; left: -9999px; width: 1px; height: 1px; overflow: hidden; }

/* Success / thank-you state */
.ambi-thanks { text-align: center; padding: var(--sp-8) var(--sp-5); display: none; }
.ambi-thanks.is-shown { display: block; animation: fstepin .4s var(--ease); }
.ambi-thanks__check { width: 64px; height: 64px; border-radius: 50%; background: var(--ambi-accent-50); color: var(--ambi-accent); display: grid; place-items: center; margin: 0 auto var(--sp-5); }
.ambi-thanks__check svg { width: 30px; height: 30px; }
.ambi-thanks__steps { max-width: 460px; margin: var(--sp-6) auto 0; text-align: left; display: grid; gap: var(--sp-4); }
.ambi-thanks__steps li { display: flex; gap: .8rem; align-items: flex-start; font-size: var(--fs-small); color: var(--ambi-muted); }
.ambi-thanks__steps b { display: inline-grid; place-items: center; width: 26px; height: 26px; flex: none; border-radius: 50%; background: var(--ambi-ink); color: #fff; font-family: var(--ambi-mono); font-size: .75rem; }

/* Sticky helper rail beside the form (desktop) */
.ambi-applywrap { display: grid; gap: var(--sp-6); align-items: start; }
@media (min-width: 1000px) { .ambi-applywrap { grid-template-columns: 1fr 340px; gap: var(--sp-8); } }
.ambi-applywrap__aside { position: sticky; top: 92px; display: grid; gap: var(--sp-5); }
.ambi-applywrap__aside .ambi-card { padding: var(--sp-5); }
.ambi-applywrap__aside .ambi-metric__value { font-size: 1.6rem; }

/* ----------------------------------------------------------------- */
/* 18. COOKIE CONSENT                                                 */
/* ----------------------------------------------------------------- */
.ambi-cookie {
  position: fixed; left: var(--sp-4); right: var(--sp-4); bottom: var(--sp-4); z-index: 90;
  max-width: 760px; margin-inline: auto;
  background: var(--ambi-ink); color: var(--ambi-on-dark);
  border: 1px solid var(--ambi-on-dark-line); border-radius: var(--radius);
  padding: var(--sp-5); box-shadow: 0 18px 44px rgba(0,0,0,.45);
  display: flex; flex-wrap: wrap; align-items: center; justify-content: space-between; gap: var(--sp-4);
}
.ambi-cookie[hidden] { display: none; }
.ambi-cookie__text { margin: 0; font-size: var(--fs-small); color: var(--ambi-on-dark-muted); max-width: 48ch; }
.ambi-cookie__text a { color: #fff; text-decoration: underline; }
.ambi-cookie__actions { display: flex; gap: .6rem; flex: none; }
.ambi-cookie .ambi-btn { padding: .6rem 1.1rem; }
.ambi-cookie .ambi-btn--ghost { color: #fff; border-color: var(--ambi-on-dark-line); }
.ambi-cookie .ambi-btn--ghost:hover { border-color: rgba(255,255,255,.4); background: rgba(255,255,255,.06); }
@media (max-width: 560px) { .ambi-cookie { flex-direction: column; align-items: stretch; } .ambi-cookie__actions { justify-content: stretch; } .ambi-cookie__actions .ambi-btn { flex: 1; justify-content: center; } }