/* ============================================================
   BioLights Dynamics — Ambassador Landing Page
   Design System & Page Styles
   ============================================================
   Brand Palette:
     Black      #000000
     White      #ffffff
     Deep Blue  #1d2648
     Purple     #542c86
     Pink       #c74c96
   Typography: Poppins (Google Fonts — Century Gothic web stand-in)
   ============================================================ */

/* ---------- Google Fonts ---------- */
@import url('https://fonts.googleapis.com/css2?family=Poppins:ital,wght@0,300;0,400;0,500;0,600;0,700;1,400&display=swap');

/* ---------- Design Tokens ---------- */
:root {
  /* Brand Colors */
  --black: #000000;
  --white: #ffffff;
  --deep-blue: #1d2648;
  --purple: #542c86;
  --pink: #c74c96;
  --off-white: #f5f5f7;
  --gray-100: #e8e8ec;
  --gray-200: #d1d1d8;
  --gray-400: #8e8e9a;
  --gray-600: #5a5a68;
  --gray-800: #2a2a35;
  --dark-surface: #0d0d14;
  --card-dark: rgba(255, 255, 255, 0.04);
  --card-dark-border: rgba(255, 255, 255, 0.08);

  /* Gradients */
  --gradient-brand: linear-gradient(135deg, var(--deep-blue), var(--purple), var(--pink));
  --gradient-brand-horizontal: linear-gradient(90deg, var(--deep-blue), var(--purple), var(--pink));
  --gradient-subtle: linear-gradient(135deg, rgba(29, 38, 72, 0.3), rgba(84, 44, 134, 0.2), rgba(199, 76, 150, 0.1));
  --gradient-glow: radial-gradient(ellipse at 50% 0%, rgba(84, 44, 134, 0.25) 0%, transparent 70%);

  /* Typography */
  --font-primary: 'Poppins', 'Century Gothic', 'Futura', sans-serif;
  --fs-hero: clamp(2.5rem, 5vw, 4.5rem);
  --fs-h2: clamp(1.75rem, 3vw, 2.75rem);
  --fs-h3: clamp(1.25rem, 2vw, 1.5rem);
  --fs-body: 1rem;
  --fs-body-lg: 1.125rem;
  --fs-small: 0.875rem;
  --fs-xs: 0.75rem;
  --lh-tight: 1.15;
  --lh-normal: 1.6;
  --lh-relaxed: 1.8;
  --letter-wide: 0.08em;

  /* Spacing */
  --space-xs: 0.5rem;
  --space-sm: 1rem;
  --space-md: 1.5rem;
  --space-lg: 2.5rem;
  --space-xl: 4rem;
  --space-2xl: 6rem;
  --space-3xl: 8rem;
  --section-padding: clamp(4rem, 8vw, 8rem);

  /* Sizing */
  --container-max: 1200px;
  --container-narrow: 800px;

  /* Borders & Radius */
  --radius-sm: 6px;
  --radius-md: 12px;
  --radius-lg: 20px;
  --radius-xl: 28px;

  /* Shadows */
  --shadow-glow: 0 0 40px rgba(84, 44, 134, 0.3);
  --shadow-card: 0 4px 24px rgba(0, 0, 0, 0.12);
  --shadow-elevated: 0 12px 48px rgba(0, 0, 0, 0.25);

  /* Transitions */
  --ease-smooth: cubic-bezier(0.4, 0, 0.2, 1);
  --transition-base: 0.3s var(--ease-smooth);
  --transition-slow: 0.6s var(--ease-smooth);
}

/* ---------- Reset & Base ---------- */
*,
*::before,
*::after {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  font-size: var(--fs-body);
  line-height: var(--lh-normal);
  color: var(--white);
  background-color: var(--black);
  overflow-x: hidden;
}

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

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

/* ---------- Utility Classes ---------- */
.container {
  width: 100%;
  max-width: var(--container-max);
  margin: 0 auto;
  padding: 0 clamp(1.25rem, 4vw, 2.5rem);
}

.container--narrow {
  max-width: var(--container-narrow);
}

.text-gradient {
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

/* ---------- Reveal Animations ---------- */
.reveal {
  opacity: 0;
  transform: translateY(32px);
  transition: opacity 0.8s var(--ease-smooth), transform 0.8s var(--ease-smooth);
}

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

.reveal-delay-1 { transition-delay: 0.1s; }
.reveal-delay-2 { transition-delay: 0.2s; }
.reveal-delay-3 { transition-delay: 0.3s; }
.reveal-delay-4 { transition-delay: 0.4s; }

/* ---------- Buttons ---------- */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  padding: 0.9rem 2rem;
  font-family: var(--font-primary);
  font-size: var(--fs-small);
  font-weight: 600;
  letter-spacing: var(--letter-wide);
  text-transform: uppercase;
  border: none;
  border-radius: var(--radius-xl);
  cursor: pointer;
  transition: all var(--transition-base);
  text-decoration: none;
  white-space: nowrap;
}

.btn--primary {
  background: var(--gradient-brand);
  color: var(--white);
  box-shadow: 0 4px 20px rgba(84, 44, 134, 0.4);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 32px rgba(84, 44, 134, 0.6);
}

.btn--secondary {
  background: transparent;
  color: var(--white);
  border: 1.5px solid rgba(255, 255, 255, 0.3);
  backdrop-filter: blur(8px);
}

.btn--secondary:hover {
  border-color: var(--pink);
  color: var(--pink);
  transform: translateY(-2px);
}

.btn--large {
  padding: 1.1rem 2.8rem;
  font-size: var(--fs-body);
}

/* ---------- Section Base ---------- */
.section {
  position: relative;
  padding: var(--section-padding) 0;
}

.section--dark {
  background-color: var(--black);
  color: var(--white);
}

.section--darker {
  background-color: var(--dark-surface);
  color: var(--white);
}

.section--light {
  background-color: var(--off-white);
  color: var(--gray-800);
}

.section__eyebrow {
  display: block;
  text-align: center;
  font-size: var(--fs-xs);
  font-weight: 600;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--pink);
  margin-bottom: var(--space-sm);
  margin-left: auto;
  margin-right: auto;
}

.section__headline {
  font-size: var(--fs-h2);
  font-weight: 700;
  line-height: var(--lh-tight);
  margin-bottom: var(--space-md);
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.section__body {
  font-size: var(--fs-body-lg);
  line-height: var(--lh-relaxed);
  color: var(--gray-400);
  max-width: 680px;
  text-align: center;
  margin-left: auto;
  margin-right: auto;
}

.section--light .section__body {
  color: var(--gray-600);
}

.section__body--centered {
  margin-left: auto;
  margin-right: auto;
  text-align: center;
}

/* ---------- Gradient Divider ---------- */
.gradient-divider {
  height: 2px;
  background: var(--gradient-brand-horizontal);
  border: none;
  opacity: 0.5;
}

/* ============================================================
   SECTION 1 — HERO
   ============================================================ */
.hero {
  position: relative;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
}

.hero__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.55;
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(0, 0, 0, 0.4) 0%,
    rgba(0, 0, 0, 0.2) 40%,
    rgba(0, 0, 0, 0.6) 80%,
    rgba(0, 0, 0, 0.95) 100%
  );
}

/* Animated glow accent */
.hero__glow {
  position: absolute;
  top: -20%;
  left: 50%;
  transform: translateX(-50%);
  width: 800px;
  height: 800px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(84, 44, 134, 0.2) 0%, transparent 65%);
  z-index: 1;
  animation: pulse-glow 6s ease-in-out infinite alternate;
}

@keyframes pulse-glow {
  0% { opacity: 0.4; transform: translateX(-50%) scale(1); }
  100% { opacity: 0.8; transform: translateX(-50%) scale(1.15); }
}

.hero__content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 780px;
  padding: 0 1.5rem;
}

.hero__logo {
  width: 180px;
  margin: 0 auto var(--space-lg);
  opacity: 0;
  animation: fade-down 1s var(--ease-smooth) 0.2s forwards;
}

.hero__headline {
  font-size: var(--fs-hero);
  font-weight: 700;
  line-height: var(--lh-tight);
  margin-bottom: var(--space-sm);
  opacity: 0;
  animation: fade-up 1s var(--ease-smooth) 0.4s forwards;
}

.hero__subheadline {
  font-size: clamp(1rem, 2vw, 1.35rem);
  font-weight: 300;
  line-height: var(--lh-relaxed);
  color: var(--gray-200);
  margin-bottom: var(--space-xs);
  opacity: 0;
  animation: fade-up 1s var(--ease-smooth) 0.6s forwards;
}

.hero__ambassador {
  font-size: var(--fs-small);
  font-weight: 500;
  letter-spacing: var(--letter-wide);
  color: var(--pink);
  margin-bottom: var(--space-md);
  opacity: 0;
  animation: fade-up 1s var(--ease-smooth) 0.7s forwards;
}

.hero__intro {
  font-size: var(--fs-body);
  line-height: var(--lh-relaxed);
  color: var(--gray-400);
  margin-bottom: var(--space-lg);
  opacity: 0;
  animation: fade-up 1s var(--ease-smooth) 0.8s forwards;
}

.hero__ctas {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
  margin-bottom: var(--space-xl);
  opacity: 0;
  animation: fade-up 1s var(--ease-smooth) 1s forwards;
}

/* Trust Strip */
.trust-strip {
  display: flex;
  gap: var(--space-md);
  justify-content: center;
  flex-wrap: wrap;
  opacity: 0;
  animation: fade-up 1s var(--ease-smooth) 1.2s forwards;
}

.trust-strip__item {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: var(--fs-xs);
  font-weight: 500;
  letter-spacing: var(--letter-wide);
  text-transform: uppercase;
  color: var(--gray-400);
}

.trust-strip__dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--gradient-brand);
}

@keyframes fade-up {
  from { opacity: 0; transform: translateY(24px); }
  to   { opacity: 1; transform: translateY(0); }
}

@keyframes fade-down {
  from { opacity: 0; transform: translateY(-16px); }
  to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   SECTION 2 — WHY PEOPLE ARE PAYING ATTENTION
   ============================================================ */
.icon-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.icon-card {
  position: relative;
  background: var(--card-dark);
  border: 1px solid var(--card-dark-border);
  border-radius: var(--radius-lg);
  padding: var(--space-lg);
  transition: all var(--transition-base);
  overflow: hidden;
}

.icon-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 2px;
  background: var(--gradient-brand-horizontal);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--transition-base);
}

.icon-card:hover {
  border-color: rgba(84, 44, 134, 0.3);
  transform: translateY(-4px);
  box-shadow: var(--shadow-glow);
}

.icon-card:hover::before {
  transform: scaleX(1);
}

.icon-card__icon {
  width: 48px;
  height: 48px;
  border-radius: var(--radius-md);
  background: var(--gradient-subtle);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: var(--space-sm);
  font-size: 1.4rem;
}

.icon-card__title {
  font-size: var(--fs-body-lg);
  font-weight: 600;
  margin-bottom: var(--space-xs);
  color: var(--white);
}

.icon-card__text {
  font-size: var(--fs-small);
  color: var(--gray-400);
  line-height: var(--lh-normal);
}

/* ============================================================
   SECTION 3 — WHO IT IS FOR
   ============================================================ */
.audience-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.audience-tile {
  position: relative;
  background: var(--white);
  border-radius: var(--radius-lg);
  padding: var(--space-lg) var(--space-md);
  text-align: center;
  transition: all var(--transition-base);
  overflow: hidden;
  border: 1px solid var(--gray-100);
}

.audience-tile::after {
  content: '';
  position: absolute;
  bottom: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--gradient-brand-horizontal);
  transform: scaleX(0);
  transition: transform var(--transition-base);
}

.audience-tile:hover {
  transform: translateY(-6px);
  box-shadow: var(--shadow-card);
}

.audience-tile:hover::after {
  transform: scaleX(1);
}

.audience-tile__icon {
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background: linear-gradient(135deg, rgba(29, 38, 72, 0.08), rgba(84, 44, 134, 0.08));
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto var(--space-sm);
  font-size: 1.5rem;
}

.audience-tile__label {
  font-size: var(--fs-body);
  font-weight: 600;
  color: var(--gray-800);
}

/* ============================================================
   SECTION 4 — WHY BIOLIGHTS DYNAMICS
   ============================================================ */
.proof-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: var(--space-md);
  margin-top: var(--space-xl);
}

.proof-point {
  display: flex;
  align-items: flex-start;
  gap: var(--space-sm);
  padding: var(--space-md);
  border-radius: var(--radius-md);
  background: var(--card-dark);
  border: 1px solid var(--card-dark-border);
  transition: all var(--transition-base);
}

.proof-point:hover {
  border-color: rgba(84, 44, 134, 0.25);
}

.proof-point__icon {
  flex-shrink: 0;
  width: 40px;
  height: 40px;
  border-radius: var(--radius-sm);
  background: var(--gradient-brand);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.1rem;
}

.proof-point__content h4 {
  font-size: var(--fs-body);
  font-weight: 600;
  margin-bottom: 0.25rem;
}

.proof-point__content p {
  font-size: var(--fs-small);
  color: var(--gray-400);
  line-height: var(--lh-normal);
}

/* Gradient Background Accent for Section 4 */
.section--gradient-accent {
  position: relative;
}

.section--gradient-accent::before {
  content: '';
  position: absolute;
  top: 0;
  right: 0;
  width: 50%;
  height: 100%;
  background: var(--gradient-glow);
  opacity: 0.5;
  pointer-events: none;
}

/* ============================================================
   SECTION 5 — AMBASSADOR CONNECTION BLOCK
   ============================================================ */
.ambassador-block {
  text-align: center;
  max-width: 700px;
  margin: 0 auto;
}

.ambassador-block__testimonial {
  position: relative;
  margin-top: var(--space-xl);
  padding: var(--space-lg);
  background: linear-gradient(145deg, rgba(29, 38, 72, 0.4), rgba(84, 44, 134, 0.2));
  border: 1px solid rgba(199, 76, 150, 0.4);
  box-shadow: 0 8px 32px rgba(84, 44, 134, 0.25);
  border-radius: var(--radius-lg);
  font-style: italic;
  font-size: clamp(1.15rem, 2.5vw, 1.4rem);
  color: var(--white);
  line-height: var(--lh-relaxed);
  transition: all var(--transition-base);
}

.ambassador-block__testimonial:hover {
  transform: translateY(-4px);
  border-color: rgba(199, 76, 150, 0.7);
  box-shadow: 0 12px 48px rgba(199, 76, 150, 0.4);
}

.ambassador-block__testimonial::before {
  content: '"';
  position: absolute;
  top: -8px;
  left: 24px;
  font-size: 4rem;
  font-style: normal;
  line-height: 1;
  background: var(--gradient-brand);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.ambassador-block__testimonial-author {
  display: block;
  margin-top: var(--space-sm);
  font-size: var(--fs-small);
  font-style: normal;
  font-weight: 600;
  color: var(--pink);
}

/* ============================================================
   SECTION 6 — LEAD CAPTURE FORM
   ============================================================ */
.form-section {
  position: relative;
}

.form-section__bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.form-section__bg img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  opacity: 0.15;
}

.form-section__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(180deg, var(--dark-surface) 0%, rgba(13, 13, 20, 0.9) 100%);
}

.form-wrapper {
  position: relative;
  z-index: 1;
  max-width: 640px;
  margin: 0 auto;
  background: rgba(255, 255, 255, 0.03);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid rgba(255, 255, 255, 0.08);
  border-radius: var(--radius-xl);
  padding: var(--space-xl) clamp(1.5rem, 4vw, 2.5rem);
}

.form-wrapper__headline {
  font-size: var(--fs-h3);
  font-weight: 700;
  text-align: center;
  margin-bottom: var(--space-xs);
}

.form-wrapper__intro {
  text-align: center;
  font-size: var(--fs-body);
  color: var(--gray-400);
  margin-bottom: var(--space-lg);
}

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

.form-group label {
  display: block;
  font-size: var(--fs-small);
  font-weight: 500;
  color: var(--gray-200);
  margin-bottom: 0.4rem;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 0.85rem 1rem;
  font-family: var(--font-primary);
  font-size: var(--fs-body);
  color: var(--white);
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  transition: all var(--transition-base);
  outline: none;
}

.form-group input::placeholder,
.form-group textarea::placeholder {
  color: var(--gray-600);
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--purple);
  box-shadow: 0 0 0 3px rgba(84, 44, 134, 0.2);
  background: rgba(255, 255, 255, 0.08);
}

.form-group select {
  appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='12' height='8' fill='%238e8e9a'%3E%3Cpath d='M1 1l5 5 5-5'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form-group select option {
  background: var(--dark-surface);
  color: var(--white);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: var(--space-md);
}

.form__submit {
  width: 100%;
  margin-top: var(--space-sm);
}

.form__disclaimer {
  text-align: center;
  font-size: var(--fs-xs);
  color: var(--gray-600);
  margin-top: var(--space-sm);
}

/* ============================================================
   SECTION 7 — FAQ
   ============================================================ */
.faq-list {
  max-width: 740px;
  margin: var(--space-xl) auto 0;
}

.faq-item {
  border-bottom: 1px solid var(--gray-100);
}

.faq-item:first-child {
  border-top: 1px solid var(--gray-100);
}

.faq-question {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 100%;
  padding: var(--space-md) 0;
  background: none;
  border: none;
  font-family: var(--font-primary);
  font-size: var(--fs-body-lg);
  font-weight: 600;
  color: var(--gray-800);
  text-align: left;
  cursor: pointer;
  transition: color var(--transition-base);
}

.faq-question:hover {
  color: var(--purple);
}

.faq-question__icon {
  flex-shrink: 0;
  width: 28px;
  height: 28px;
  border-radius: 50%;
  border: 1.5px solid var(--gray-200);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: all var(--transition-base);
  margin-left: var(--space-sm);
}

.faq-question__icon svg {
  width: 12px;
  height: 12px;
  transition: transform var(--transition-base);
}

.faq-item.is-open .faq-question__icon {
  background: var(--gradient-brand);
  border-color: transparent;
}

.faq-item.is-open .faq-question__icon svg {
  transform: rotate(180deg);
}

.faq-item.is-open .faq-question__icon svg path {
  stroke: var(--white);
}

.faq-answer {
  overflow: hidden;
  max-height: 0;
  transition: max-height 0.4s var(--ease-smooth), padding 0.4s var(--ease-smooth);
}

.faq-item.is-open .faq-answer {
  max-height: 300px;
  padding-bottom: var(--space-md);
}

.faq-answer p {
  font-size: var(--fs-body);
  line-height: var(--lh-relaxed);
  color: var(--gray-600);
}

/* ============================================================
   SECTION 8 — FINAL CTA
   ============================================================ */
.final-cta {
  text-align: center;
  position: relative;
  overflow: hidden;
}

.final-cta::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 100%;
  max-width: 900px;
  height: 100%;
  background: radial-gradient(ellipse at center, rgba(84, 44, 134, 0.15) 0%, transparent 70%);
  pointer-events: none;
}

.final-cta__headline {
  font-size: var(--fs-h2);
  font-weight: 700;
  line-height: var(--lh-tight);
  max-width: 700px;
  margin: 0 auto var(--space-md);
}

.final-cta__body {
  font-size: var(--fs-body-lg);
  color: var(--gray-400);
  max-width: 600px;
  margin: 0 auto var(--space-lg);
  line-height: var(--lh-relaxed);
}

.final-cta__buttons {
  display: flex;
  gap: var(--space-sm);
  justify-content: center;
  flex-wrap: wrap;
}

/* ============================================================
   FOOTER
   ============================================================ */
.footer {
  padding: var(--space-lg) 0;
  text-align: center;
  border-top: 1px solid rgba(255, 255, 255, 0.06);
}

.footer__text {
  font-size: var(--fs-xs);
  color: var(--gray-600);
  letter-spacing: 0.02em;
}

.footer__text a {
  color: var(--gray-400);
  transition: color var(--transition-base);
}

.footer__text a:hover {
  color: var(--pink);
}

/* ============================================================
   STICKY NAV (Minimal top bar)
   ============================================================ */
.topbar {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  padding: 0.75rem 0;
  background: rgba(0, 0, 0, 0.65);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transform: translateY(-100%);
  transition: transform var(--transition-base);
}

.topbar.is-visible {
  transform: translateY(0);
}

.topbar__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.topbar__logo {
  height: 28px;
  opacity: 0.9;
}

.topbar__cta {
  padding: 0.55rem 1.4rem;
  font-size: var(--fs-xs);
}

/* ============================================================
   SPLIT LAYOUT (AMBASSADOR & FORM)
   ============================================================ */
.split-layout {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: var(--space-xl);
  align-items: stretch;
}

.split-layout__left,
.split-layout__right {
  display: flex;
  flex-direction: column;
  justify-content: flex-start;
}

/* ============================================================
   RESPONSIVE
   ============================================================ */
@media (max-width: 768px) {
  .split-layout {
    grid-template-columns: 1fr;
    gap: var(--space-lg);
  }
  .form-row {
    grid-template-columns: 1fr;
  }

  .hero__content {
    padding: 0 1rem;
  }

  .trust-strip {
    flex-direction: column;
    align-items: center;
    gap: var(--space-xs);
  }

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

  .icon-cards {
    grid-template-columns: 1fr;
  }

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

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

  .hero__ctas {
    flex-direction: column;
    align-items: center;
  }

  .final-cta__buttons {
    flex-direction: column;
    align-items: center;
  }

  .btn--large {
    width: 100%;
    justify-content: center;
  }
}