:root {
  --bg: #0a0f12;
  --fg: #f5f5f5;
  --muted: rgba(245, 245, 245, 0.72);
  --muted-2: rgba(245, 245, 245, 0.56);
  --stroke: rgba(245, 245, 245, 0.12);
  --stroke-strong: rgba(245, 245, 245, 0.22);
  --panel-border: rgba(255, 255, 255, 0.12);
  --panel-border-strong: rgba(255, 255, 255, 0.18);
  --accent: #fff600;
  --accent-text: #0a0f12;
  --accent-soft: #f7cd02;

  --radius: 18px;
  --shadow: 0 16px 40px rgba(0, 0, 0, 0.35);
  --container: 1120px;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: Inter, system-ui, -apple-system, Segoe UI, Roboto, Helvetica,
    Arial, sans-serif;
  background: radial-gradient(
      1400px 700px at 10% 0%,
      rgba(255, 246, 0, 0.12),
      transparent 55%
    ),
    radial-gradient(
      1100px 650px at 90% 10%,
      rgba(255, 246, 0, 0.06),
      transparent 55%
    ),
    var(--bg);
  color: var(--fg);
  line-height: 1.5;
}

a {
  color: inherit;
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

.container {
  width: min(var(--container), calc(100% - 48px));
  margin-inline: auto;
}

.accent {
  color: var(--accent);
}

.skip-link {
  position: absolute;
  left: -9999px;
  top: 12px;
  padding: 10px 12px;
  background: var(--bg);
  border: 1px solid var(--stroke-strong);
  border-radius: 10px;
  z-index: 1000;
}

.skip-link:focus {
  left: 12px;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  backdrop-filter: blur(10px);
  background: rgba(10, 15, 18, 0.68);
  border-bottom: 1px solid var(--stroke);
  transition: background-color 0.3s ease, box-shadow 0.3s ease;
}

.site-header[data-scrolled="true"] {
  background-color: rgba(10, 15, 18, 0.95);
  box-shadow: 0 2px 16px rgba(0, 0, 0, 0.3);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: calc(14px + env(safe-area-inset-top)) 0 14px;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  text-decoration: none;
  letter-spacing: 0.02em;
}

.logo-dot {
  width: 10px;
  height: 10px;
  border-radius: 999px;
  background: var(--accent);
  box-shadow: 0 0 0 4px rgba(255, 246, 0, 0.12);
  flex: none;
  transition: transform 0.3s ease;
}

.logo-text {
  font-weight: 700;
  font-size: 14px;
  text-transform: uppercase;
}

.logo:hover .logo-dot {
  transform: scale(1.2);
  animation: pulse 2s ease-in-out infinite;
}

@keyframes pulse {
  0%,
  100% {
    opacity: 1;
  }
  50% {
    opacity: 0.5;
  }
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
  justify-content: flex-end;
}

.site-nav a {
  text-decoration: none;
  color: var(--muted);
  font-weight: 500;
  font-size: 14px;
  padding: 10px 8px;
  border-radius: 10px;
  white-space: nowrap;
  opacity: 0.85;
  transition: opacity 0.2s ease;
}

.site-nav a:hover {
  color: var(--fg);
  background: rgba(245, 245, 245, 0.06);
  opacity: 1;
}

.menu-button {
  display: none;
  align-items: center;
  gap: 10px;
  padding: 10px 12px;
  background: rgba(245, 245, 245, 0.06);
  border: 1px solid var(--stroke);
  color: var(--fg);
  border-radius: 12px;
  cursor: pointer;
}

.menu-button:focus-visible,
.site-nav a:focus-visible,
.cta:focus-visible,
.link:focus-visible,
input:focus-visible,
textarea:focus-visible,
summary:focus-visible {
  outline: 2px solid var(--accent);
  outline-offset: 3px;
}

.menu-button-label {
  font-weight: 600;
  font-size: 14px;
}

.menu-icon {
  width: 18px;
  display: grid;
  gap: 4px;
}

.menu-icon span {
  display: block;
  height: 2px;
  background: var(--fg);
  border-radius: 999px;
  opacity: 0.9;
}

.cta,
.cta:visited {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 10px;
  padding: 12px 16px;
  border-radius: 999px;
  background: var(--accent);
  color: var(--accent-text);
  font-weight: 700;
  text-decoration: none;
  border: 1px solid rgba(0, 0, 0, 0.22);
  cursor: pointer;
  transition: transform 0.2s ease, opacity 0.2s ease;
}

.cta:hover {
  transform: scale(1.05);
  opacity: 0.9;
}

.cta:active {
  transform: scale(0.98);
}

.cta--small {
  padding: 10px 14px;
  font-size: 14px;
}

.link {
  display: inline-flex;
  position: relative;
  padding: 10px 4px;
  color: var(--muted);
  font-weight: 600;
  text-decoration: none;
  transition: opacity 0.2s ease;
}

.link::after {
  content: "";
  position: absolute;
  bottom: 0;
  left: 0;
  width: 0;
  height: 1px;
  background: currentColor;
  transition: width 0.3s ease;
}

.link:hover {
  opacity: 0.8;
}

.link:hover::after {
  width: 100%;
}


.hero {
  padding: 7rem 0 4rem;
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.2fr 0.8fr;
  gap: 34px;
  align-items: start;
}

.eyebrow {
  margin: 0 0 12px;
  color: var(--muted-2);
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  font-weight: 400;
}

.hero-title {
  margin: 0 0 18px;
  font-size: clamp(3.5rem, 5vw, 4.5rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.hero-subtitle {
  margin: 0 0 24px;
  color: var(--muted);
  font-size: 17px;
  font-weight: 400;
  line-height: 1.7;
  max-width: 60ch;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 1.5rem;
  flex-wrap: wrap;
  margin: 0 0 20px;
}

.hero-points {
  margin: 0;
  padding: 0;
  list-style: none;
  display: grid;
  gap: 0.75rem;
  color: var(--muted);
  font-size: 14px;
  margin-top: 2.5rem;
}

.hero-points li {
  padding-left: 16px;
  position: relative;
}

.hero-points li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 10px;
  width: 6px;
  height: 2px;
  border-radius: 999px;
  background: rgba(255, 246, 0, 0.9);
}

.hero-panel .panel {
  border: 1px solid var(--panel-border);
  background: rgba(245, 245, 245, 0.04);
  border-radius: var(--radius);
  padding: 2rem;
  box-shadow: 0 8px 26px rgba(0, 0, 0, 0.35);
}

.normalization {
  margin-top: 1.5rem;
  padding: 1.25rem 1.5rem;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  background: rgba(245, 245, 245, 0.02);
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

.choice-section .choices-grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(240px, 1fr));
  gap: 1.5rem;
}

.path-card {
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  background: rgba(245, 245, 245, 0.03);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.path-card .card-body {
  margin: 0;
}

.format-section {
  margin-top: 2rem;
}

.format-bullets {
  margin: 0;
  padding-left: 18px;
  list-style: disc;
  color: var(--muted);
  line-height: 1.7;
  font-size: 15px;
}

.format-limit {
  margin-top: 2.5rem;
  border: 1px solid var(--panel-border-strong);
  padding: 1.5rem;
  border-radius: 16px;
  background: rgba(245, 245, 245, 0.02);
}

.format-cta {
  margin-top: 2.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.cta-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 16px;
  border-radius: 999px;
  border: 1px solid rgba(245, 245, 245, 0.4);
  background: transparent;
  color: var(--fg);
  font-weight: 600;
  text-decoration: none;
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.cta-secondary:hover {
  opacity: 0.85;
}

.format-note {
  margin: 0;
  font-size: 13px;
  color: var(--muted-2);
}

.video-block {
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  background: rgba(245, 245, 245, 0.02);
  display: grid;
  gap: 1rem;
}

.video-placeholder {
  border-radius: 16px;
  border: 1px dashed rgba(245, 245, 245, 0.4);
  padding: 2rem;
  text-align: center;
  font-size: 14px;
  color: var(--muted-2);
}

.video-placeholder span {
  display: block;
  font-size: 12px;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.video-note {
  margin: 0;
  color: var(--muted);
}

.agenda {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.agenda-item {
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  background: rgba(245, 245, 245, 0.03);
}

.quote-card {
  margin: 0;
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  background: rgba(245, 245, 245, 0.03);
}

.quote-card blockquote {
  margin: 0;
  color: var(--fg);
  font-size: 15px;
  line-height: 1.7;
}

.quote-card figcaption {
  margin-top: 1rem;
  color: var(--muted);
  font-size: 13px;
}

.lead-actions {
  display: grid;
  gap: 0.75rem;
  align-content: start;
}

.lead-links {
  display: inline-flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.quality-check .format-bullets {
  display: grid;
  gap: 0.35rem;
  padding-left: 20px;
}

.start-footer-nav {
  display: inline-flex;
  gap: 1.5rem;
  flex-wrap: wrap;
}

.start-footer-nav a {
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  padding: 6px 8px;
  border-radius: 8px;
  transition: opacity 0.2s ease;
}

.start-footer-nav a:hover {
  opacity: 1;
  color: var(--fg);
  background: rgba(245, 245, 245, 0.04);
}

.lesson-grid {
  margin-top: 2rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.5rem;
}

.lesson-card {
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  padding: 1.75rem;
  background: rgba(245, 245, 245, 0.03);
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
}

.prompt {
  margin: 0.5rem 0 0;
  padding: 1rem 1.1rem;
  border-radius: 16px;
  border: 1px solid rgba(245, 245, 245, 0.16);
  background: rgba(10, 15, 18, 0.55);
  color: rgba(245, 245, 245, 0.9);
  font-size: 13px;
  line-height: 1.55;
  overflow: auto;
  white-space: pre-wrap;
}

.panel-line {
  height: 1px;
  background: linear-gradient(
    90deg,
    rgba(255, 246, 0, 0.9),
    rgba(245, 245, 245, 0.1)
  );
  margin-bottom: 16px;
}

.panel-title {
  margin: 0 0 10px;
  font-weight: 600;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-size: 12px;
  color: var(--muted-2);
}

.panel-list {
  margin: 0;
  padding-left: 18px;
  display: grid;
  gap: 6px;
  color: var(--fg);
  font-size: 14px;
}

.panel-note {
  margin: 18px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.section {
  padding: 6rem 0;
  border-top: 1px solid var(--stroke);
  opacity: 0;
  transform: translateY(30px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

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

.section > .container {
  padding: 3rem 0;
}

.section-title {
  margin: 0 0 14px;
  font-size: 2.25rem;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.section-lead {
  margin: 0;
  color: var(--muted);
  max-width: 70ch;
}

.split {
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 28px;
  align-items: start;
}

.grid {
  display: grid;
  gap: 2rem;
  margin-top: 22px;
}

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

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

.card {
  border: 1px solid var(--panel-border);
  background: rgba(245, 245, 245, 0.04);
  border-radius: var(--radius);
  padding: 2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.card:hover {
  transform: translateY(-8px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.card > * + * {
  margin-top: 1rem;
}

.card-kicker {
  margin: 0;
  color: var(--muted-2);
  font-size: 12px;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  font-weight: 400;
  opacity: 0.7;
}

.card-title {
  margin: 0;
  font-size: 1.35rem;
  font-weight: 600;
  line-height: 1.2;
  letter-spacing: -0.01em;
}

.card-body {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
  line-height: 1.6;
}

.list {
  margin: 0;
  padding-left: 18px;
  color: var(--muted);
  display: grid;
  gap: 6px;
  font-size: 14px;
}

.steps {
  display: grid;
  gap: 2.5rem;
}

.step {
  border: 1px solid var(--panel-border);
  background: rgba(245, 245, 245, 0.03);
  border-radius: var(--radius);
  padding: 1.75rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.step:hover {
  transform: translateY(-6px);
  box-shadow: 0 10px 28px rgba(0, 0, 0, 0.25);
}

.step-number {
  margin: 0 0 10px;
  font-weight: 700;
  color: rgba(255, 246, 0, 0.55);
  letter-spacing: 0.06em;
  font-size: 1rem;
  opacity: 0.75;
}

.step-title {
  margin: 0 0 8px;
  font-weight: 700;
  font-size: 1.2rem;
}

.step-body {
  margin: 0;
  color: var(--muted);
  font-size: 15px;
  line-height: 1.6;
}

.faq {
  margin-top: 18px;
  display: grid;
  gap: 12px;
}

details {
  border: 1px solid var(--panel-border);
  background: rgba(245, 245, 245, 0.03);
  border-radius: var(--radius);
  padding: 14px 16px;
  transition: box-shadow 0.3s ease, transform 0.3s ease;
}

details[open] {
  box-shadow: 0 12px 26px rgba(0, 0, 0, 0.25);
  transform: translateY(-3px);
}

summary {
  cursor: pointer;
  font-weight: 500;
  font-size: 1rem;
  padding: 6px 0;
  transition: opacity 0.2s ease;
}

summary:hover {
  opacity: 0.85;
}

summary::before {
  content: "+";
  transition: transform 0.3s ease;
  display: inline-block;
  margin-right: 0.75rem;
  font-weight: 600;
}

details[open] summary::before {
  content: "−";
}

details p {
  margin: 14px 0 0;
  color: var(--muted);
  font-weight: 400;
  font-size: 14px;
  max-width: 80ch;
  line-height: 1.6;
}

.contact {
  border-top: 1px solid var(--stroke-strong);
}

.contact-inner {
  display: grid;
  grid-template-columns: 1fr 0.9fr;
  gap: 24px;
  align-items: start;
}

.note {
  margin: 16px 0 0;
  color: var(--muted-2);
  font-size: 13px;
}

.form {
  border: 1px solid var(--stroke);
  background: rgba(245, 245, 245, 0.03);
  border-radius: var(--radius);
  padding: 20px;
  display: grid;
  gap: 14px;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  font-size: 13px;
  color: var(--muted-2);
}

input,
textarea {
  width: 100%;
  padding: 12px 12px;
  border-radius: 14px;
  border: 1px solid var(--stroke);
  background: rgba(10, 15, 18, 0.45);
  color: var(--fg);
  font: inherit;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

textarea {
  resize: vertical;
  min-height: 92px;
}

input::placeholder,
textarea::placeholder {
  color: rgba(245, 245, 245, 0.42);
}

input:focus,
textarea:focus {
  outline: none;
  border-color: rgba(255, 255, 255, 0.6);
  box-shadow: 0 0 0 3px rgba(255, 255, 255, 0.12);
}

.form-hint {
  margin: 0;
  color: var(--muted);
  font-size: 13px;
  min-height: 18px;
}

.site-footer {
  border-top: 1px solid var(--stroke);
  padding: 26px 0;
}

.footer-inner {
  display: grid;
  grid-template-columns: 1fr auto auto;
  align-items: center;
  gap: 16px;
}

.footer-brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 700;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  font-size: 12px;
}

.footer-links {
  display: inline-flex;
  gap: 14px;
  flex-wrap: wrap;
}

.footer-links a {
  color: var(--muted);
  text-decoration: none;
  font-size: 13px;
  padding: 8px 8px;
  border-radius: 10px;
}

.footer-links a:hover {
  background: rgba(245, 245, 245, 0.06);
  color: var(--fg);
}

.footer-note {
  margin: 0;
  color: var(--muted-2);
  font-size: 13px;
  text-align: right;
}

@media (max-width: 920px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
  .split {
    grid-template-columns: 1fr;
  }
  .grid-3 {
    grid-template-columns: 1fr;
  }
  .grid-2 {
    grid-template-columns: 1fr;
  }
  .contact-inner {
    grid-template-columns: 1fr;
  }
  .footer-inner {
    grid-template-columns: 1fr;
  }
  .footer-note {
    text-align: left;
  }
}

@media (max-width: 768px) {
  .hero-title {
    font-size: 2.5rem;
  }

  .hero-panel {
    width: 100%;
    margin-top: 2rem;
  }

  .hero-panel .panel {
    padding: 1.5rem;
  }

  .grid {
    gap: 1.5rem;
  }

  .steps {
    gap: 1.5rem;
  }

  .section > .container {
    padding: 2.25rem 0;
  }

  .card {
    padding: 1.5rem;
  }

  .hero-actions {
    gap: 1rem;
  }

  .choice-section .choices-grid {
    gap: 1rem;
  }

  .path-card {
    padding: 1.25rem;
  }

  .format-cta {
    gap: 0.5rem;
  }

  .format-cta a {
    width: 100%;
  }

  .format-limit {
    padding: 1.25rem;
  }

  .video-block {
    padding: 1.25rem;
  }

  .lesson-grid {
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .lesson-card {
    padding: 1.25rem;
  }

  .agenda {
    grid-template-columns: 1fr;
    gap: 1rem;
  }
}

@media (max-width: 1040px) {
  .site-nav {
    gap: 12px;
  }

  .site-nav a {
    padding: 8px 6px;
    font-size: 13px;
  }
}

@media (max-width: 860px) {
  .menu-button {
    display: inline-flex;
  }

  .site-nav {
    position: absolute;
    top: 100%;
    right: 0;
    left: 0;
    display: flex;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: rgba(10, 15, 18, 0.95);
    border-bottom: 1px solid var(--stroke);
    padding: 20px 0 24px;
    transform: translateX(100%);
    opacity: 0;
    pointer-events: none;
    transition: transform 0.3s ease, opacity 0.3s ease;
    backdrop-filter: blur(5px);
  }

  .site-nav[data-open="true"] {
    transform: translateX(0);
    opacity: 1;
    pointer-events: auto;
  }

  .site-nav a {
    padding: 12px 20px;
    font-size: 15px;
  }

  .cta--small {
    width: 100%;
    margin-top: 8px;
  }

  .hero {
    padding-top: 44px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}