:root {
  --bg: #edf1f3;
  --surface: #f8faf9;
  --surface-soft: #ffffff;
  --ink: #161b24;
  --muted: #5e6674;
  --navy: #0d2f4d;
  --navy-soft: #143c61;
  --teal: #39c7a0;
  --teal-deep: #1fa884;
  --line: #d8dde3;
  --line-strong: #c7d0da;
  --danger: #b53333;
  --success: #0c8f63;
  --ring: #86dccc;
  --radius-xl: 24px;
  --radius-lg: 18px;
  --radius-md: 12px;
  --shadow-soft: 0 14px 32px rgba(10, 33, 56, 0.1);
  --shadow-strong: 0 22px 45px rgba(10, 33, 56, 0.16);
  --container: 1120px;
  --font-body: "Montserrat", "Segoe UI", sans-serif;
  --font-title: "Montserrat", "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--ink);
  background: linear-gradient(180deg, #f4f6f8 0%, var(--bg) 100%);
  line-height: 1.52;
  min-width: 320px;
}

a {
  color: inherit;
}

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

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.08;
}

p {
  margin: 0;
}

.skip-link {
  position: absolute;
  left: 0.8rem;
  top: -100%;
  padding: 0.7rem 1rem;
  background: #0d2f4d;
  color: #fff;
  border-radius: 0 0 10px 10px;
  z-index: 100;
}

.skip-link:focus {
  top: 0;
}

.container {
  width: min(var(--container), calc(100% - 2.5rem));
  margin: 0 auto;
}

.narrow {
  width: min(850px, calc(100% - 2.5rem));
}

.top-strip {
  background: #f2f4f5;
  border-bottom: 1px solid var(--line);
}

.top-strip__content {
  min-height: 64px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.8rem;
  flex-wrap: wrap;
  padding: 0.4rem 0;
}

.top-strip__label,
.top-strip__meta {
  font-size: 0.92rem;
  color: var(--muted);
}

.top-strip__label {
  letter-spacing: 0.1em;
  text-transform: uppercase;
  font-weight: 700;
  color: var(--teal-deep);
}

.top-strip__meta {
  font-weight: 500;
}

.hero {
  position: relative;
  padding: 1.1rem 0 3.5rem;
  background: var(--navy);
  overflow: hidden;
}

.hero::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at 10% 10%, rgba(57, 199, 160, 0.28) 0 2px, transparent 3px),
    radial-gradient(circle at 30% 45%, rgba(57, 199, 160, 0.28) 0 2px, transparent 3px),
    radial-gradient(circle at 55% 30%, rgba(57, 199, 160, 0.28) 0 2px, transparent 3px),
    radial-gradient(circle at 80% 60%, rgba(57, 199, 160, 0.28) 0 2px, transparent 3px),
    linear-gradient(110deg, rgba(57, 199, 160, 0.12), transparent 50%);
  pointer-events: none;
}

.hero::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(24deg, transparent 48%, rgba(57, 199, 160, 0.17) 49%, transparent 50%),
    linear-gradient(-14deg, transparent 46%, rgba(57, 199, 160, 0.12) 47%, transparent 48%);
  opacity: 0.9;
  pointer-events: none;
}

.ambient-glow {
  position: absolute;
  width: 28rem;
  height: 28rem;
  border-radius: 50%;
  filter: blur(48px);
  opacity: 0.3;
  pointer-events: none;
}

.ambient-glow--one {
  left: -14rem;
  top: -18rem;
  background: rgba(57, 199, 160, 0.54);
}

.ambient-glow--two {
  right: -10rem;
  top: -15rem;
  background: rgba(11, 73, 121, 0.6);
}

.hero__container {
  position: relative;
  z-index: 1;
}

.brand {
  display: inline-flex;
  align-items: center;
  text-decoration: none;
  border: 0;
  background: transparent;
  padding: 0;
  max-width: 420px;
}

.brand-logo {
  width: 100%;
  height: auto;
}

.hero__layout {
  margin-top: 1.3rem;
  display: grid;
  gap: 1.2rem;
}

.hero__content {
  color: #eef5fa;
}

.eyebrow {
  margin: 0 0 0.75rem;
  color: #9fd8c8;
  font-size: 0.88rem;
  text-transform: uppercase;
  letter-spacing: 0.14em;
  font-weight: 700;
}

.hero h1 {
  font-family: var(--font-title);
  color: #eef5fa;
  font-size: clamp(2.05rem, 5.6vw, 4rem);
  max-width: 14ch;
}

.hero__subtitle {
  margin-top: 1rem;
  color: #ccdae7;
  font-size: clamp(1rem, 2.8vw, 1.25rem);
  max-width: 54ch;
}

.badges {
  list-style: none;
  display: flex;
  flex-wrap: wrap;
  margin: 1.2rem 0 0;
  padding: 0;
  gap: 0.6rem;
}

.badges li {
  border-radius: 999px;
  border: 1px solid rgba(159, 216, 200, 0.55);
  background: rgba(6, 24, 40, 0.56);
  color: #d8f3eb;
  padding: 0.34rem 0.78rem;
  font-size: 0.86rem;
  font-weight: 700;
}

.hero__support {
  margin-top: 0.95rem;
  color: #c5d5e4;
}

.hero__cta-row {
  margin-top: 1.3rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
}

.btn {
  border: 0;
  border-radius: 999px;
  min-height: 48px;
  padding: 0.75rem 1.34rem;
  font: inherit;
  font-weight: 700;
  letter-spacing: 0.01em;
  text-decoration: none;
  text-align: center;
  cursor: pointer;
  transition: transform 220ms ease, box-shadow 240ms ease, background-color 220ms ease;
}

.btn:hover {
  transform: translateY(-2px);
}

.btn:focus-visible {
  outline: 3px solid var(--ring);
  outline-offset: 2px;
}

.btn--primary {
  background: var(--teal);
  color: #032a21;
  box-shadow: 0 14px 28px rgba(13, 47, 77, 0.26);
}

.btn--primary:hover {
  background: #4bdbb4;
}

.btn--ghost {
  color: #deedf8;
  background: transparent;
  border: 1px solid rgba(222, 237, 248, 0.38);
}

.btn--ghost:hover {
  background: rgba(13, 47, 77, 0.45);
}

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

.form-card {
  border-radius: var(--radius-xl);
  border: 1px solid rgba(159, 216, 200, 0.35);
  background: rgba(6, 24, 40, 0.74);
  backdrop-filter: blur(10px);
  box-shadow: var(--shadow-strong);
  padding: 1.2rem;
}

.form-card h2 {
  color: #ecf2f7;
  font-size: clamp(1.25rem, 3.7vw, 1.72rem);
  font-family: var(--font-title);
}

.form-card__intro {
  margin-top: 0.5rem;
  color: #d2deea;
}

.lead-form {
  margin-top: 1rem;
  display: grid;
  gap: 0.85rem;
}

.field {
  display: grid;
  gap: 0.34rem;
}

label {
  color: #d8e5f1;
  font-weight: 600;
  font-size: 0.9rem;
}

input[type="text"],
input[type="email"],
input[type="tel"] {
  width: 100%;
  min-height: 48px;
  border-radius: 10px;
  border: 1px solid rgba(198, 216, 233, 0.42);
  background: rgba(255, 255, 255, 0.96);
  padding: 0.7rem 0.82rem;
  color: var(--ink);
  font: inherit;
}

input::placeholder {
  color: #70889f;
}

input:focus {
  outline: 2px solid var(--ring);
  outline-offset: 1px;
}

input.input-invalid {
  border-color: var(--danger);
  background: #fff6f6;
}

.field-error {
  min-height: 1rem;
  margin: 0;
  color: #ffacac;
  font-size: 0.82rem;
}

.form-legal {
  color: #c0d2e2;
  font-size: 0.82rem;
}

.form-legal a {
  color: #9fd8c8;
  font-weight: 700;
}

.form-status {
  min-height: 1.1rem;
  margin: 0;
  font-size: 0.91rem;
  font-weight: 700;
}

.form-status.is-error {
  color: #ffb4b4;
}

.form-status.is-success {
  color: #9ef0d6;
}

.section {
  padding: clamp(2.7rem, 8vw, 4.6rem) 0;
}

.section h2 {
  font-family: var(--font-title);
  font-size: clamp(1.9rem, 4.8vw, 3rem);
  color: var(--navy);
}

.section p {
  margin-top: 0.95rem;
  color: var(--muted);
}

.section-subtitle {
  max-width: 68ch;
}

.section--about {
  background: linear-gradient(180deg, #f8faf9 0%, #ffffff 65%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.topic-list {
  margin: 1.2rem 0 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.72rem;
}

.topic-list li {
  position: relative;
  background: #ffffff;
  border: 1px solid var(--line-strong);
  border-left: 4px solid var(--teal);
  border-radius: var(--radius-md);
  padding: 0.8rem 0.84rem 0.8rem 1rem;
  color: #264158;
  font-weight: 500;
}

.section--speakers {
  background: #f2f5f7;
}

.speaker-grid {
  margin-top: 1.5rem;
  display: grid;
  grid-template-columns: 1fr;
  gap: 1rem;
}

.speaker-card {
  background: var(--surface-soft);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-lg);
  padding: 0.9rem;
  box-shadow: var(--shadow-soft);
  transition: transform 220ms ease, box-shadow 230ms ease, border-color 220ms ease;
}

.speaker-card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow-strong);
  border-color: #aac4d8;
}

.speaker-photo {
  width: 100%;
  aspect-ratio: 1 / 1;
  border-radius: 12px;
  object-fit: cover;
  border: 1px solid #cfd8e2;
}

.speaker-card h3 {
  margin-top: 0.84rem;
  font-family: var(--font-title);
  font-size: 1.35rem;
  color: var(--navy);
}

.speaker-role,
.speaker-topic,
.speaker-description {
  margin-top: 0.38rem;
}

.speaker-role {
  color: #2e4f6d;
  font-weight: 600;
}

.speaker-topic {
  color: var(--teal-deep);
  font-weight: 700;
}

.speaker-description {
  color: var(--muted);
}

.section--faq {
  background: #ffffff;
}

.faq-list {
  margin-top: 1rem;
  display: grid;
  gap: 0.75rem;
}

.faq-list details {
  border: 1px solid var(--line-strong);
  border-radius: 12px;
  background: #f9fbfc;
  padding: 0.16rem 0.95rem;
}

.faq-list summary {
  cursor: pointer;
  list-style: none;
  font-weight: 700;
  color: var(--navy);
  padding: 0.78rem 0;
}

.faq-list summary::-webkit-details-marker {
  display: none;
}

.faq-list summary::after {
  content: "+";
  float: right;
  color: var(--teal-deep);
}

.faq-list details[open] summary::after {
  content: "-";
}

.faq-list details p {
  margin: 0 0 0.86rem;
}

.section--final-cta {
  position: relative;
  color: #eef5fa;
  background: var(--navy);
  overflow: hidden;
}

.section--final-cta::before {
  content: "";
  position: absolute;
  inset: 0;
  background:
    linear-gradient(130deg, rgba(57, 199, 160, 0.15), transparent 55%),
    radial-gradient(circle at 88% 18%, rgba(57, 199, 160, 0.24), transparent 34%);
  pointer-events: none;
}

.section--final-cta .container {
  position: relative;
  z-index: 1;
}

.section--final-cta h2 {
  color: #eef5fa;
}

.section--final-cta p {
  color: #c8d7e5;
}

.section--final-cta .btn {
  margin-top: 1.1rem;
}

.footer {
  background: #081e31;
  border-top: 1px solid rgba(159, 216, 200, 0.24);
  color: #d4e3f0;
  padding: 1.6rem 0;
}

.footer__content {
  display: grid;
  justify-items: center;
  gap: 0.32rem;
  text-align: center;
  font-size: 0.95rem;
}

.footer-logo {
  width: min(250px, 68vw);
  height: auto;
  margin-bottom: 0.18rem;
  filter: brightness(1.16) saturate(0.72);
}

.footer__content a {
  color: #b6f4df;
}

.noscript-alert {
  padding: 0.9rem;
  text-align: center;
  background: #ffe9e9;
  color: #7b1313;
  font-weight: 700;
}

.reveal {
  opacity: 0;
  transform: translateY(16px);
  transition: opacity 520ms ease, transform 520ms ease;
}

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

.thank-you-shell {
  min-height: 100dvh;
  display: grid;
  place-items: center;
  padding: 1.2rem;
  background: linear-gradient(180deg, #f4f6f8 0%, var(--bg) 100%);
}

.thank-you-card {
  width: min(700px, 100%);
  background: var(--surface-soft);
  border: 1px solid var(--line-strong);
  border-radius: var(--radius-xl);
  box-shadow: var(--shadow-strong);
  padding: 1.45rem;
  text-align: center;
}

.thank-you-logo {
  width: min(340px, 88%);
  height: auto;
  margin: 0 auto 0.8rem;
}

.thank-you-badge {
  width: 68px;
  height: 68px;
  display: grid;
  place-items: center;
  margin: 0 auto 1rem;
  border-radius: 18px;
  background: linear-gradient(135deg, var(--navy), var(--teal-deep));
  color: #fff;
  font-family: var(--font-title);
  font-size: 1.85rem;
}

.thank-you-card h1 {
  font-family: var(--font-title);
  font-size: clamp(1.8rem, 4.8vw, 2.5rem);
  color: var(--navy);
}

.thank-you-card p {
  color: var(--muted);
  margin-top: 0.8rem;
}

.thank-you-actions {
  margin-top: 1.2rem;
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.7rem;
}

@media (min-width: 700px) {
  .form-card {
    padding: 1.35rem;
  }

  .speaker-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (min-width: 980px) {
  .hero {
    padding: 1.2rem 0 4rem;
  }

  .hero__layout {
    grid-template-columns: minmax(0, 1.06fr) minmax(350px, 420px);
    gap: 1.55rem;
    align-items: start;
  }

  .speaker-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .container,
  .narrow {
    width: min(var(--container), calc(100% - 1.3rem));
  }

  .top-strip__content {
    min-height: auto;
    padding: 0.65rem 0;
  }

  .hero__cta-row {
    gap: 0.55rem;
  }

  .btn {
    width: 100%;
  }

  .brand {
    max-width: 300px;
  }

  .form-card {
    border-radius: 18px;
  }
}