:root {
  --yellow: #f3c11a;
  --yellow-soft: #ffd85a;
  --ink: #1c1c20;
  --ink-soft: rgba(28, 28, 32, 0.78);
  --white-card: rgba(255, 251, 242, 0.9);
  --dark-card: #1d1d22;
  --line: rgba(255, 255, 255, 0.36);
  --shadow: 0 24px 56px rgba(110, 73, 0, 0.24);
  --radius-lg: 34px;
  --width: 1040px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Avenir Next", "Trebuchet MS", sans-serif;
  background:
    radial-gradient(circle at top, rgba(255, 246, 192, 0.95), transparent 30%),
    linear-gradient(180deg, var(--yellow-soft) 0%, var(--yellow) 44%, #e4ae08 100%);
}

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

h1,
p,
ul,
ol {
  margin-top: 0;
}

.page {
  width: min(calc(100% - 28px), var(--width));
  margin: 0 auto;
  padding: 22px 0 56px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  padding: 14px 18px;
  border: 2px solid var(--line);
  border-radius: 999px;
  background: rgba(255, 248, 222, 0.46);
  backdrop-filter: blur(18px);
}

.brand {
  font-size: 1.25rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 14px;
  font-weight: 700;
}

.nav-button,
.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 50px;
  padding: 0 22px;
  border-radius: 999px;
  font-weight: 800;
}

.nav-button,
.button-primary {
  background: #17181d;
  color: #fff7d3;
  box-shadow: 0 14px 32px rgba(28, 28, 32, 0.2);
}

.button-secondary {
  border: 2px solid rgba(28, 28, 32, 0.1);
  background: rgba(255, 251, 242, 0.82);
}

.hero {
  display: grid;
  justify-items: center;
  text-align: center;
  padding: 42px 0 18px;
}

.hero-icon {
  width: min(720px, 92vw);
  filter: drop-shadow(0 24px 32px rgba(91, 60, 0, 0.36));
}

.eyebrow,
.panel-label {
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: rgba(28, 28, 32, 0.62);
}

.eyebrow {
  margin: 18px 0 14px;
}

h1 {
  max-width: 12ch;
  margin-bottom: 16px;
  font-size: clamp(3rem, 7vw, 5.6rem);
  line-height: 0.92;
  letter-spacing: -0.06em;
}

.lead {
  max-width: 700px;
  margin-bottom: 28px;
  color: var(--ink-soft);
  font-size: clamp(1rem, 1.6vw, 1.15rem);
  line-height: 1.65;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 14px;
}

.video-showcase {
  display: flex;
  flex-direction: column;
  gap: 28px;
  margin-top: 42px;
}

.video-card {
  padding: 28px 32px;
  border: 2px solid var(--line);
  border-radius: var(--radius-lg);
  background: rgba(255, 251, 242, 0.36);
  backdrop-filter: blur(24px);
}

.video-label {
  font-size: 1.1rem;
  font-weight: 800;
  letter-spacing: -0.01em;
  color: var(--ink);
  margin: 0 0 18px;
}

.video-frame {
  border-radius: 20px;
  overflow: hidden;
  box-shadow:
    0 8px 32px rgba(28, 28, 32, 0.18),
    0 2px 8px rgba(28, 28, 32, 0.08);
}

.demo-video {
  width: 100%;
  display: block;
}

.section-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
  margin-top: 34px;
}

.requirements-panel {
  margin-top: 28px;
  padding: 26px;
  border: 2px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--dark-card);
  box-shadow: var(--shadow);
  text-align: center;
}

.requirements-text {
  color: rgba(255, 247, 211, 0.86);
  font-size: 1rem;
  line-height: 1.6;
  margin-bottom: 18px;
}

.requirements-panel .panel-label {
  color: rgba(255, 247, 211, 0.86);
  margin-bottom: 12px;
}

.inline-link {
  color: var(--yellow-soft);
  text-decoration: underline;
  text-underline-offset: 3px;
}

.panel,
.steps-panel {
  padding: 26px;
  border: 2px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white-card);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.panel-dark {
  background: var(--dark-card);
}

.panel-dark .panel-label,
.panel-dark li {
  color: rgba(255, 251, 242, 0.95);
}

.feature-list,
.steps {
  margin-bottom: 0;
  padding-left: 20px;
}

.feature-list li,
.steps li {
  margin-bottom: 10px;
  line-height: 1.6;
}

.feature-list li {
  color: var(--ink-soft);
}

/* Feature highlight (Mail Check, etc.) */

.feature-highlight {
  position: relative;
  margin-top: 34px;
  padding: 36px 40px;
  border: 2px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--dark-card);
  box-shadow: var(--shadow);
  text-align: center;
}

.feature-highlight .panel-label {
  color: rgba(255, 247, 211, 0.86);
}

.feature-highlight-badge {
  display: inline-block;
  margin-bottom: 14px;
  padding: 4px 14px;
  border-radius: 999px;
  background: var(--yellow);
  color: var(--ink);
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.feature-highlight-heading {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1;
  letter-spacing: -0.04em;
  margin: 8px 0 16px;
  color: #fff7d3;
}

.feature-highlight-description {
  max-width: 600px;
  margin: 0 auto 20px;
  color: rgba(255, 247, 211, 0.82);
  font-size: 1rem;
  line-height: 1.65;
}

.feature-highlight-list {
  display: inline-block;
  text-align: left;
  list-style: none;
  padding: 0;
  margin: 0;
}

.feature-highlight-list li {
  position: relative;
  padding-left: 20px;
  margin-bottom: 8px;
  color: rgba(255, 247, 211, 0.72);
  font-size: 0.95rem;
  line-height: 1.6;
}

.feature-highlight-list li::before {
  content: "—";
  position: absolute;
  left: 0;
  color: var(--yellow);
  font-weight: 700;
}

@media (max-width: 720px) {
  .feature-highlight {
    padding: 28px 22px;
  }
}

.skill-section {
  display: flex;
  align-items: center;
  gap: 40px;
  margin-top: 34px;
  padding: 36px 40px;
  border: 2px solid var(--line);
  border-radius: var(--radius-lg);
  background: var(--white-card);
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.skill-content {
  flex: 1;
}

.skill-heading {
  font-size: clamp(2rem, 4vw, 3rem);
  line-height: 1;
  letter-spacing: -0.04em;
  margin: 8px 0 16px;
}

.skill-description {
  color: var(--ink-soft);
  font-size: 1rem;
  line-height: 1.65;
  margin-bottom: 10px;
}

.skill-description:last-child {
  margin-bottom: 0;
}

.skill-icon-wrap {
  flex-shrink: 0;
}

.skill-icon {
  width: 200px;
  height: 200px;
  filter: drop-shadow(0 12px 24px rgba(28, 28, 32, 0.14));
}

.steps-panel {
  margin-top: 18px;
}

.steps {
  color: var(--ink-soft);
}

/* Terms page */

.terms {
  padding-top: 32px;
}

.terms-header {
  text-align: center;
  margin-bottom: 28px;
}

.terms-header h1 {
  max-width: none;
  font-size: clamp(2rem, 5vw, 3.6rem);
  margin-bottom: 8px;
}

.terms-meta {
  font-size: 0.9rem;
  color: var(--ink-soft);
}

.terms-body {
  padding: 40px 48px;
  line-height: 1.75;
}

.terms-body h2 {
  font-size: 1.2rem;
  margin: 36px 0 12px;
  letter-spacing: -0.01em;
}

.terms-body h2:first-child {
  margin-top: 0;
}

.terms-body h3 {
  font-size: 1rem;
  margin: 20px 0 8px;
}

.terms-body p {
  color: var(--ink-soft);
  margin-bottom: 12px;
}

.terms-body ol,
.terms-body ul {
  color: var(--ink-soft);
  padding-left: 22px;
  margin-bottom: 12px;
}

.terms-body li {
  margin-bottom: 8px;
}

.terms-body ul ul,
.terms-body ol ul {
  margin-top: 8px;
}

.oss-list {
  columns: 2;
  column-gap: 32px;
}

.oss-list li {
  break-inside: avoid;
  font-size: 0.92rem;
}

.inline-link-dark {
  color: var(--ink);
  text-decoration: underline;
  text-underline-offset: 3px;
  font-weight: 600;
}

.info-table {
  width: 100%;
  border-collapse: collapse;
  margin: 12px 0;
  font-size: 0.95rem;
}

.info-table th,
.info-table td {
  text-align: left;
  padding: 10px 14px;
  border-bottom: 1px solid rgba(28, 28, 32, 0.1);
  color: var(--ink-soft);
}

.info-table th {
  color: var(--ink);
  font-weight: 700;
  white-space: nowrap;
  width: 1%;
}

/* Footer */

.footer {
  margin-top: 42px;
  padding: 18px 0;
  text-align: center;
  font-size: 0.82rem;
  color: var(--ink-soft);
}

.footer-links {
  margin-bottom: 8px;
}

.footer a {
  text-decoration: underline;
  text-underline-offset: 3px;
}

.footer-sep {
  margin: 0 8px;
  opacity: 0.5;
}

.copyright {
  margin: 0;
  font-size: 0.78rem;
  opacity: 0.7;
}

@media (max-width: 860px) {
  .terms-body {
    padding: 28px 22px;
  }

  .oss-list {
    columns: 1;
  }
}

@media (max-width: 860px) {
  .section-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 860px) {
  .skill-section {
    flex-direction: column;
    text-align: center;
    gap: 24px;
    padding: 28px 24px;
  }

  .skill-icon {
    width: 160px;
    height: 160px;
  }
}

@media (max-width: 720px) {
  .page {
    width: min(calc(100% - 20px), var(--width));
    padding-top: 14px;
  }

  .topbar,
  .nav-actions,
  .hero-actions {
    flex-direction: column;
    align-items: stretch;
  }

  .nav-button,
  .button {
    width: 100%;
  }

  h1 {
    max-width: none;
  }
}