:root {
  --background: #fbfcfa;
  --surface: #ffffff;
  --surface-soft: #f1f6f3;
  --surface-blue: #edf5f8;
  --text: #182522;
  --muted: #5b6a66;
  --border: #d8e2dc;
  --accent: #426f62;
  --accent-strong: #294e45;
  --blue: #446f86;
  --shadow: 0 18px 50px rgba(28, 47, 43, 0.08);
  --radius: 8px;
  --max-width: 1120px;
  --font-sans:
    "Google Sans Flex", ui-sans-serif, system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  overflow-x: hidden;
  background: var(--background);
  color: var(--text);
  font-family: var(--font-sans);
  font-size: 16px;
  line-height: 1.6;
}

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

a:hover {
  color: var(--accent-strong);
}

:focus-visible {
  outline: 3px solid rgba(68, 111, 134, 0.42);
  outline-offset: 3px;
}

.heroicon {
  width: 1.1em;
  height: 1.1em;
  flex: 0 0 auto;
}

.inline-icon {
  display: inline-block;
  width: 1.05em;
  height: 1.05em;
  margin-right: 6px;
  vertical-align: -0.16em;
  color: var(--accent-strong);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  width: 100%;
  padding: 18px max(24px, calc((100vw - var(--max-width)) / 2));
  background: rgba(251, 252, 250, 0.92);
  border-bottom: 1px solid rgba(216, 226, 220, 0.75);
  backdrop-filter: blur(14px);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: var(--text);
  font-weight: 700;
  line-height: 1.2;
}

.brand-word {
  font-variation-settings:
    "wdth" 135,
    "wght" 850,
    "GRAD" 85,
    "ROND" 35;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 28px;
  height: 28px;
  color: var(--accent);
}

.brand-mark svg {
  width: 100%;
  height: 100%;
  display: block;
}

.nav-links {
  display: flex;
  align-items: center;
  gap: 22px;
  color: var(--muted);
  font-size: 0.94rem;
  font-weight: 600;
}

.nav-cta {
  color: var(--accent-strong);
}

.section {
  width: min(var(--max-width), calc(100% - 48px));
  margin: 0 auto;
  padding: 88px 0;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 1.05fr) minmax(320px, 0.75fr);
  align-items: center;
  gap: 72px;
  min-height: calc(100vh - 68px);
  padding-top: 76px;
  padding-bottom: 76px;
}

h1,
h2,
h3 {
  font-family: var(--font-sans);
  font-variation-settings:
    "wdth" 120,
    "wght" 850,
    "GRAD" 85,
    "ROND" 35;
}

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

h1 {
  max-width: 760px;
  margin-bottom: 24px;
  font-size: clamp(2.9rem, 6vw, 6.35rem);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 18px;
  font-size: clamp(2rem, 4vw, 3.5rem);
  line-height: 1.05;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 10px;
  font-size: 1.08rem;
  line-height: 1.25;
}

.lede {
  max-width: 660px;
  color: var(--muted);
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  line-height: 1.55;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 34px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 48px;
  padding: 13px 20px;
  border: 1px solid transparent;
  border-radius: var(--radius);
  font: inherit;
  font-size: 0.98rem;
  font-weight: 700;
  cursor: pointer;
}

.button-primary {
  background: var(--accent-strong);
  color: #ffffff;
  box-shadow: 0 10px 24px rgba(41, 78, 69, 0.2);
}

.button-primary:hover {
  color: #ffffff;
  background: #1f3f38;
}

.button-secondary {
  background: var(--surface);
  border-color: var(--border);
  color: var(--accent-strong);
}

.hero-visual {
  position: relative;
  min-height: 560px;
}

.hero-phone-card {
  position: absolute;
  inset: 0;
  overflow: visible;
}

.hero-phone-image {
  display: block;
  width: min(600px, 118%);
  max-width: none;
  height: 100%;
  margin-left: -6%;
  object-fit: contain;
  object-position: center;
  transform: scale(1.4);
  transform-origin: center;
}

.section-intro {
  max-width: 780px;
}

.section-intro p,
.split-section p,
.contact-copy p {
  color: var(--muted);
  font-size: 1.06rem;
}

.problem,
.split-section,
.audience,
.dumbphone,
.how-it-works,
.packages,
.about,
.contact-section {
  width: 100%;
  max-width: none;
  padding-right: max(24px, calc((100vw - var(--max-width)) / 2));
  padding-left: max(24px, calc((100vw - var(--max-width)) / 2));
}

.problem {
  background: var(--surface);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.split-section {
  display: grid;
  grid-template-columns: minmax(0, 0.85fr) minmax(320px, 1fr);
  gap: 64px;
  background: var(--background);
}

.audience {
  background: var(--surface-blue);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.feature-list,
.audience-grid,
.dumbphone-grid,
.steps,
.package-grid {
  display: grid;
  gap: 14px;
}

.feature-list {
  grid-template-columns: repeat(2, minmax(0, 1fr));
  padding: 0;
  margin: 0;
  list-style: none;
}

.feature-list li,
.audience-grid p,
.dumbphone-grid article,
.steps article,
.package-grid article {
  margin: 0;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: 0 1px 0 rgba(24, 37, 34, 0.03);
}

.feature-list li {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 14px 16px;
  color: var(--accent-strong);
  font-weight: 600;
}

.feature-list .heroicon {
  margin-top: 2px;
  color: var(--blue);
}

.audience-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 30px;
}

.audience-grid p {
  display: flex;
  align-items: flex-start;
  gap: 10px;
  padding: 20px;
  color: var(--muted);
}

.audience-grid .heroicon {
  margin-top: 2px;
  color: var(--accent);
}

.dumbphone {
  background: var(--background);
}

.dumbphone-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 34px;
}

.dumbphone-grid article {
  padding: 24px;
}

.dumbphone-grid p {
  color: var(--muted);
}

.how-it-works {
  background: var(--surface);
  border-top: 1px solid var(--border);
}

.about-layout {
  display: grid;
  grid-template-columns: minmax(220px, 0.42fr) minmax(0, 0.78fr);
  align-items: center;
  gap: 56px;
  max-width: var(--max-width);
}

.about-portrait {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--background);
}

.about-portrait img {
  display: block;
  width: 100%;
  aspect-ratio: 1;
  object-fit: cover;
}

.about-copy {
  max-width: 780px;
}

.about-copy p {
  color: var(--muted);
  font-size: 1.06rem;
}

.steps {
  grid-template-columns: repeat(4, minmax(0, 1fr));
  margin-top: 34px;
}

.steps article,
.package-grid article {
  padding: 24px;
}

.steps span {
  display: inline-flex;
  align-items: center;
  gap: 12px;
  margin-bottom: 26px;
  color: var(--blue);
  font-size: 1.45rem;
  font-weight: 800;
}

.steps span .heroicon {
  width: 1.65em;
  height: 1.65em;
}

.steps p,
.package-grid p {
  color: var(--muted);
}

.packages {
  padding-top: 58px;
  background: var(--surface-soft);
  border-top: 1px solid var(--border);
  border-bottom: 1px solid var(--border);
}

.package-grid {
  grid-template-columns: repeat(3, minmax(0, 1fr));
  margin-top: 34px;
}

.package-grid article {
  min-height: 360px;
}

.card-icon {
  width: 28px;
  height: 28px;
  margin-bottom: 22px;
  color: var(--accent);
}

.package-price {
  display: grid;
  gap: 2px;
  margin: 0 0 18px;
  padding-bottom: 18px;
  border-bottom: 1px solid var(--border);
}

.price-label,
.regular-price {
  color: var(--muted);
  font-size: 0.84rem;
  font-weight: 700;
}

.package-price strong {
  color: var(--accent-strong);
  font-size: 2rem;
  line-height: 1.1;
}

.package-note {
  max-width: 760px;
  margin: 20px 0 0;
  color: var(--muted);
  font-size: 0.96rem;
}

.about {
  background: var(--surface);
  border-bottom: 1px solid var(--border);
}

.contact-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(360px, 1fr);
  gap: 64px;
  align-items: start;
  background: var(--background);
}

.notice,
.contact-confirmation {
  padding: 14px 16px;
  border: 1px solid rgba(66, 111, 98, 0.28);
  border-radius: var(--radius);
  background: var(--surface-soft);
  color: var(--accent-strong);
  font-weight: 700;
}

.contact-confirmation {
  align-self: start;
  padding: 32px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.contact-confirmation h3 {
  margin-bottom: 12px;
  font-size: clamp(1.5rem, 3vw, 2.2rem);
  line-height: 1.1;
}

.contact-confirmation p {
  margin-bottom: 0;
  color: var(--muted);
  font-weight: 500;
}

.confirmation-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  margin-bottom: 24px;
  border: 2px solid var(--accent);
  border-radius: 50%;
  color: var(--accent);
  background: var(--surface-soft);
}

.confirmation-mark .heroicon {
  width: 22px;
  height: 22px;
}

.contact-form {
  display: grid;
  gap: 18px;
  padding: 28px;
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: var(--surface);
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  gap: 8px;
}

label {
  color: var(--text);
  font-size: 0.94rem;
  font-weight: 700;
}

input,
select,
textarea {
  width: 100%;
  min-height: 46px;
  padding: 12px 13px;
  border: 1px solid #c8d5ce;
  border-radius: var(--radius);
  background: #ffffff;
  color: var(--text);
  font: inherit;
}

textarea {
  resize: vertical;
}

.form-note {
  margin: 0;
  color: var(--muted);
  font-size: 0.92rem;
}

.form-errors {
  padding: 14px 16px;
  border: 1px solid #bf6c64;
  border-radius: var(--radius);
  background: #fff8f7;
  color: #6f2f29;
}

.form-errors p,
.form-errors ul {
  margin: 0;
}

.form-errors ul {
  padding-left: 20px;
}

.honeypot {
  position: absolute;
  left: -10000px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 24px;
  width: min(var(--max-width), calc(100% - 48px));
  margin: 0 auto;
  padding: 32px 0 46px;
  border-top: 1px solid var(--border);
  color: var(--muted);
  font-size: 0.94rem;
}

.site-footer p {
  margin: 0;
}

.footer-author-link {
  text-decoration: underline;
  text-decoration-thickness: 0.08em;
  text-underline-offset: 0.18em;
}

.footer-copy {
  display: grid;
  gap: 6px;
  max-width: 720px;
}

.trademark-notice {
  font-size: 0.84rem;
  line-height: 1.45;
}

@media (max-width: 900px) {
  .site-header {
    position: static;
    align-items: flex-start;
    flex-direction: column;
  }

  .nav-links {
    flex-wrap: wrap;
    gap: 14px 18px;
  }

  .section {
    width: min(100% - 32px, var(--max-width));
    padding: 64px 0;
  }

  .hero,
  .split-section,
  .about-layout,
  .contact-section {
    grid-template-columns: 1fr;
    gap: 42px;
  }

  .hero {
    min-height: auto;
    padding-top: 56px;
  }

  .hero-visual {
    display: none;
  }

  .hero-phone-image {
    width: 100%;
    height: 100%;
    margin-left: 0;
    transform: scale(1.28);
  }

  .hero-phone-card {
    position: absolute;
    inset: 0;
    overflow: hidden;
  }

  .about-portrait {
    max-width: 360px;
  }

  .feature-list,
  .audience-grid,
  .dumbphone-grid,
  .steps,
  .package-grid {
    grid-template-columns: 1fr;
  }

  .problem,
  .split-section,
  .audience,
  .dumbphone,
  .how-it-works,
  .packages,
  .about,
  .contact-section {
    padding-right: 16px;
    padding-left: 16px;
  }
}

@media (max-width: 560px) {
  .brand {
    max-width: 260px;
  }

  .nav-links a:not(.nav-cta) {
    display: none;
  }

  h1 {
    font-size: 3.1rem;
  }

  .hero-actions,
  .hero-actions .button,
  .contact-form .button {
    width: 100%;
  }

  .site-footer {
    flex-direction: column;
  }
}