:root {
  --bg: #05090d;
  --bg-2: #081017;
  --panel: rgba(8, 18, 26, 0.82);
  --panel-strong: rgba(7, 14, 20, 0.94);
  --line: rgba(95, 238, 246, 0.25);
  --line-strong: rgba(95, 238, 246, 0.72);
  --text: #f4f9fa;
  --muted: #b7c7cc;
  --muted-2: #869aa2;
  --cyan: #2cdceb;
  --amber: #ffb54e;
  --dark: #071018;
  --max: 1160px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background:
    linear-gradient(180deg, rgba(5, 9, 13, 0.84), rgba(5, 9, 13, 1) 980px),
    radial-gradient(circle at 72% 28%, rgba(44, 220, 235, 0.12), transparent 34%),
    var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  line-height: 1.5;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -2;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.025) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.025) 1px, transparent 1px);
  background-size: 40px 40px;
  content: "";
  pointer-events: none;
}

a {
  color: inherit;
}

svg {
  display: block;
  width: 1em;
  height: 1em;
  fill: none;
  stroke: currentColor;
  stroke-linecap: round;
  stroke-linejoin: round;
  stroke-width: 2;
}

.site-header {
  position: fixed;
  z-index: 10;
  top: 0;
  right: 0;
  left: 0;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 76px;
  padding: 14px clamp(18px, 5vw, 64px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  background: rgba(5, 9, 13, 0.72);
  backdrop-filter: blur(16px);
}

.brand,
.nav-cta,
.nav-links a,
.button {
  text-decoration: none;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-size: 17px;
  font-weight: 700;
}

.brand-mark {
  width: 18px;
  height: 18px;
  border: 2px solid var(--cyan);
  border-radius: 4px;
  box-shadow: 0 0 24px rgba(44, 220, 235, 0.38);
  transform: rotate(45deg);
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 28px;
  color: var(--muted);
  font-size: 14px;
}

.nav-links a {
  transition: color 180ms ease;
}

.nav-links a:hover {
  color: var(--text);
}

.nav-cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 9px;
  min-height: 42px;
  padding: 10px 16px;
  border: 1px solid rgba(44, 220, 235, 0.52);
  border-radius: 8px;
  background: rgba(44, 220, 235, 0.1);
  color: var(--cyan);
  font-size: 14px;
  font-weight: 700;
}

.hero {
  position: relative;
  min-height: 82vh;
  padding: 82px clamp(18px, 5vw, 64px) 18px;
  overflow: hidden;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.hero-bg {
  position: absolute;
  inset: 0;
  z-index: -1;
  background:
    linear-gradient(90deg, rgba(5, 9, 13, 0.98) 0%, rgba(5, 9, 13, 0.9) 42%, rgba(5, 9, 13, 0.36) 76%, rgba(5, 9, 13, 0.72) 100%),
    linear-gradient(180deg, rgba(5, 9, 13, 0.35), rgba(5, 9, 13, 0.96)),
    url("assets/webinar-bg.png") center / cover no-repeat;
  transform: scale(1.02);
}

.hero-content,
.section-inner,
.registration-inner,
.footer {
  width: min(100%, var(--max));
  margin: 0 auto;
}

.hero-content {
  max-width: 980px;
}

.eyebrow,
.section-kicker {
  margin: 0 0 18px;
  color: var(--cyan);
  font-size: 13px;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1 {
  max-width: 960px;
  margin-bottom: 14px;
  font-size: clamp(42px, 5.7vw, 68px);
  line-height: 1;
  letter-spacing: 0;
}

.hero-lead {
  max-width: 740px;
  margin-bottom: 18px;
  color: var(--muted);
  font-size: clamp(18px, 2vw, 21px);
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  margin-bottom: 18px;
}

.hero-meta span,
.hero-note span {
  display: inline-flex;
  align-items: center;
  gap: 9px;
  min-height: 42px;
  padding: 10px 14px;
  border: 1px solid rgba(255, 255, 255, 0.14);
  border-radius: 8px;
  background: rgba(5, 12, 18, 0.68);
  color: var(--text);
  font-size: 15px;
  font-weight: 700;
}

.hero-meta svg {
  color: var(--amber);
}

.hero-actions,
.hero-note {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  align-items: center;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  min-height: 54px;
  padding: 15px 21px;
  border-radius: 8px;
  font-size: 16px;
  font-weight: 800;
  transition:
    transform 180ms ease,
    border-color 180ms ease,
    background 180ms ease;
}

.button:hover {
  transform: translateY(-1px);
}

.button.primary {
  border: 1px solid var(--cyan);
  background: var(--cyan);
  color: #031016;
  box-shadow: 0 18px 44px rgba(44, 220, 235, 0.22);
}

.button.ghost {
  border: 1px solid rgba(255, 255, 255, 0.2);
  background: rgba(255, 255, 255, 0.06);
  color: var(--text);
}

.button.large {
  min-height: 62px;
  padding-right: 28px;
  padding-left: 28px;
  font-size: 18px;
}

.hero-note {
  margin-top: 14px;
}

.hero-note span {
  color: var(--muted);
  font-weight: 700;
}

.author-strip {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 12px;
  color: var(--muted);
  font-size: 14px;
}

.author-strip span {
  padding: 8px 12px;
  border: 1px solid rgba(44, 220, 235, 0.2);
  border-radius: 8px;
  background: rgba(5, 12, 18, 0.54);
}

.author-strip span:first-child {
  border-color: rgba(255, 181, 78, 0.46);
  color: var(--amber);
  font-weight: 800;
}

.section {
  padding: 86px clamp(18px, 5vw, 64px);
}

.problem {
  background: linear-gradient(180deg, rgba(7, 16, 24, 0.88), rgba(5, 9, 13, 0.98));
}

.author {
  background:
    linear-gradient(90deg, rgba(255, 181, 78, 0.08), transparent 42%),
    var(--bg);
}

.author-layout {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.95fr);
  gap: 48px;
  align-items: stretch;
}

.author-panel {
  padding: clamp(28px, 5vw, 48px);
  border: 1px solid rgba(255, 181, 78, 0.2);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(255, 181, 78, 0.12), transparent 48%),
    rgba(8, 18, 26, 0.78);
}

.author-panel h2 {
  margin-bottom: 20px;
}

.author-panel p,
.tickets-note {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 20px;
}

.author-facts,
.value-grid,
.fit-columns {
  display: grid;
  gap: 14px;
}

.author-facts div,
.value-grid div {
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 8px;
  background: rgba(5, 12, 18, 0.72);
}

.author-facts strong,
.value-grid strong {
  display: block;
  margin-bottom: 7px;
  color: var(--text);
  font-size: 18px;
}

.author-facts span,
.value-grid span {
  color: var(--muted);
}

.split {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: 64px;
  align-items: start;
}

h2 {
  max-width: 860px;
  margin-bottom: 0;
  font-size: clamp(34px, 5vw, 58px);
  line-height: 1.04;
  letter-spacing: 0;
}

.text-stack {
  display: grid;
  gap: 18px;
  color: var(--muted);
  font-size: 20px;
}

.text-stack p {
  margin-bottom: 0;
}

.section-heading {
  max-width: 780px;
  margin-bottom: 36px;
}

.section-heading p:not(.section-kicker) {
  margin-top: 20px;
  color: var(--muted);
  font-size: 20px;
}

.section-heading.narrow {
  max-width: 720px;
}

.feature-grid,
.ticket-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 16px;
}

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

.feature-card,
.ticket-card {
  min-height: 238px;
  padding: 24px;
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 8px;
  background:
    linear-gradient(180deg, rgba(255, 255, 255, 0.045), rgba(255, 255, 255, 0.018)),
    var(--panel);
}

.feature-card svg {
  width: 32px;
  height: 32px;
  margin-bottom: 22px;
  color: var(--cyan);
}

.feature-card h3,
.ticket-card h3 {
  margin-bottom: 12px;
  font-size: 22px;
  line-height: 1.14;
}

.feature-card p,
.ticket-card p {
  margin-bottom: 0;
  color: var(--muted);
}

.value {
  background:
    linear-gradient(180deg, rgba(5, 9, 13, 0.98), rgba(8, 16, 22, 0.96));
}

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

.fit {
  background:
    linear-gradient(90deg, rgba(44, 220, 235, 0.07), transparent 42%),
    var(--bg);
}

.fit-layout {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: 48px;
  align-items: start;
}

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

.fit-card {
  min-height: 360px;
  padding: 26px;
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  background: var(--panel);
}

.fit-card.positive {
  border-color: rgba(44, 220, 235, 0.42);
}

.fit-card h3 {
  margin-bottom: 18px;
  font-size: 24px;
}

.fit-card ul {
  display: grid;
  gap: 14px;
  margin: 0;
  padding-left: 20px;
  color: var(--muted);
}

.fit-card li::marker {
  color: var(--amber);
}

.format {
  background:
    linear-gradient(90deg, rgba(44, 220, 235, 0.08), transparent 45%),
    var(--bg-2);
}

.format-layout {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 0.75fr);
  gap: 48px;
  align-items: center;
}

.proof-list {
  display: grid;
  gap: 12px;
}

.proof-list div {
  padding: 20px;
  border-left: 3px solid var(--cyan);
  border-radius: 0 8px 8px 0;
  background: rgba(5, 12, 18, 0.76);
}

.proof-list strong {
  display: block;
  margin-bottom: 6px;
  color: var(--text);
  font-size: 18px;
}

.proof-list span {
  color: var(--muted);
}

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

.ticket-card {
  min-height: 210px;
}

.ticket-card.featured {
  border-color: rgba(255, 181, 78, 0.62);
  box-shadow: 0 20px 70px rgba(255, 181, 78, 0.08);
}

.ticket-name {
  color: var(--muted);
  font-weight: 800;
  text-transform: uppercase;
}

.ticket-price {
  margin-bottom: 18px;
  color: var(--text) !important;
  font-size: 40px;
  font-weight: 900;
  line-height: 1;
}

.tickets-note {
  max-width: 780px;
  margin-top: 24px;
}

.faq {
  padding-top: 42px;
}

.faq-list {
  display: grid;
  gap: 12px;
}

details {
  border: 1px solid rgba(255, 255, 255, 0.09);
  border-radius: 8px;
  background: rgba(8, 18, 26, 0.72);
}

summary {
  cursor: pointer;
  padding: 22px 24px;
  color: var(--text);
  font-size: 20px;
  font-weight: 800;
}

details p {
  margin: 0;
  padding: 0 24px 24px;
  color: var(--muted);
  font-size: 18px;
}

.registration {
  padding: 90px clamp(18px, 5vw, 64px);
  background:
    linear-gradient(90deg, rgba(255, 181, 78, 0.14), transparent 46%),
    linear-gradient(180deg, var(--bg), #030507);
}

.registration-inner {
  padding: clamp(28px, 5vw, 58px);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 8px;
  background:
    linear-gradient(135deg, rgba(44, 220, 235, 0.12), transparent 42%),
    var(--panel-strong);
}

.registration h2 {
  max-width: 800px;
  margin-bottom: 20px;
}

.registration p:not(.section-kicker) {
  max-width: 760px;
  margin-bottom: 28px;
  color: var(--muted);
  font-size: 20px;
}

.footer {
  display: flex;
  justify-content: space-between;
  gap: 18px;
  padding: 30px clamp(18px, 5vw, 64px) 42px;
  color: var(--muted-2);
  font-size: 14px;
}

@media (max-width: 900px) {
  .site-header {
    gap: 14px;
  }

  .nav-links {
    display: none;
  }

  .hero {
    min-height: 86vh;
    padding-top: 108px;
  }

  .hero-bg {
    background:
      linear-gradient(180deg, rgba(5, 9, 13, 0.92), rgba(5, 9, 13, 0.82) 52%, rgba(5, 9, 13, 0.98)),
      url("assets/webinar-bg.png") 58% center / cover no-repeat;
  }

  .split,
  .author-layout,
  .format-layout,
  .fit-layout,
  .fit-columns,
  .feature-grid,
  .feature-grid.six,
  .value-grid,
  .ticket-grid {
    grid-template-columns: 1fr;
  }

  .feature-card,
  .ticket-card {
    min-height: auto;
  }

  .hero-note,
  .author-strip {
    display: none;
  }
}

@media (max-width: 560px) {
  .site-header {
    min-height: 68px;
    padding: 12px 16px;
  }

  .brand {
    font-size: 15px;
  }

  .nav-cta {
    min-height: 38px;
    padding: 9px 12px;
    font-size: 13px;
  }

  .hero {
    padding: 96px 18px 54px;
  }

  h1 {
    font-size: 40px;
  }

  .hero-lead,
  .text-stack,
  .section-heading p:not(.section-kicker),
  .registration p:not(.section-kicker) {
    font-size: 18px;
  }

  .button {
    width: 100%;
  }

  .section,
  .registration {
    padding: 64px 18px;
  }

  .ticket-price {
    font-size: 34px;
  }

  .footer {
    flex-direction: column;
    padding-right: 18px;
    padding-left: 18px;
  }
}