:root {
  color-scheme: light;
  --bg: #f4f6f8;
  --surface: #ffffff;
  --surface-muted: #f8fafc;
  --surface-dark: #111318;
  --line: #d7dde5;
  --line-strong: #b8c0cc;
  --text: #12151b;
  --muted: #59616e;
  --accent: #b91c1c;
  --accent-dark: #7f1d1d;
  --white: #ffffff;
  --shadow-sm: 0 1px 2px rgba(17, 19, 24, 0.08);
  --shadow-md: 0 18px 44px rgba(17, 19, 24, 0.12);
  --container: min(1160px, calc(100% - 40px));
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  min-width: 320px;
  margin: 0;
  background:
    linear-gradient(180deg, rgba(232, 237, 242, 0.82) 0, rgba(244, 246, 248, 0) 420px),
    var(--bg);
  color: var(--text);
  font-family:
    ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI",
    sans-serif, "Apple Color Emoji", "Segoe UI Emoji", "Segoe UI Symbol";
  line-height: 1.55;
}

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

img {
  max-width: 100%;
}

code {
  padding: 0.12rem 0.34rem;
  border: 1px solid var(--line);
  border-radius: 4px;
  background: var(--surface-muted);
  color: var(--text);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  width: 100%;
  border-bottom: 1px solid rgba(215, 221, 229, 0.88);
  background: rgba(255, 255, 255, 0.94);
  backdrop-filter: blur(14px);
}

.site-header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.25rem;
  width: var(--container);
  margin: 0 auto;
  padding: 12px 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  min-width: 0;
}

.brand img {
  display: block;
  width: auto;
  height: 82px;
  object-fit: contain;
}

.nav-links {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 0.35rem;
}

.nav-links a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 40px;
  padding: 0.56rem 0.9rem;
  border: 1px solid transparent;
  border-radius: 6px;
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
  line-height: 1;
}

.nav-links a:hover,
.nav-links a:focus-visible {
  border-color: var(--line);
  background: var(--surface-muted);
  color: var(--text);
  outline: none;
}

.nav-links a[aria-current="page"] {
  border-color: var(--text);
  background: var(--text);
  color: var(--white);
}

.hero,
.page-title,
.section-band,
.social-section,
.tutorial-grid,
.contact-section,
.app-showcase {
  width: var(--container);
  margin: 0 auto;
}

.hero {
  display: grid;
  grid-template-columns: minmax(0, 0.92fr) minmax(420px, 1.08fr);
  gap: 3.5rem;
  align-items: center;
  min-height: calc(100svh - 107px);
  padding: 5rem 0 4rem;
}

.hero-copy {
  max-width: 650px;
}

.eyebrow,
.file-label {
  margin: 0 0 0.85rem;
  color: var(--accent);
  font-size: 0.76rem;
  font-weight: 900;
  letter-spacing: 0;
  text-transform: uppercase;
}

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

h1 {
  max-width: 14ch;
  margin-bottom: 1.1rem;
  color: var(--text);
  font-size: 4.75rem;
  font-weight: 900;
  line-height: 0.98;
  letter-spacing: 0;
}

.page-title h1 {
  max-width: 18ch;
  font-size: 3.15rem;
  line-height: 1.03;
}

h2 {
  margin-bottom: 0.75rem;
  color: var(--text);
  font-size: 2rem;
  font-weight: 900;
  line-height: 1.12;
  letter-spacing: 0;
}

h3 {
  margin-bottom: 0.65rem;
  color: var(--text);
  font-size: 1.55rem;
  font-weight: 900;
  line-height: 1.14;
}

.hero-copy > p:not(.eyebrow),
.page-title > p,
.download-panel p,
.tutorial-body p {
  max-width: 62ch;
  color: var(--muted);
  font-size: 1.05rem;
}

.hero-copy > p:not(.eyebrow) {
  font-size: 1.13rem;
}

.hero-actions,
.social-grid {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-actions {
  align-items: center;
  margin-top: 2rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.55rem;
  min-height: 48px;
  padding: 0.78rem 1.05rem;
  border: 1px solid transparent;
  border-radius: 6px;
  font-size: 0.86rem;
  font-weight: 900;
  line-height: 1;
  text-transform: uppercase;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    background 160ms ease,
    box-shadow 160ms ease;
}

.button:hover,
.button:focus-visible,
.social-card:hover,
.social-card:focus-visible {
  transform: translateY(-2px);
  outline: none;
}

.button.primary {
  background: var(--accent);
  box-shadow: 0 10px 24px rgba(185, 28, 28, 0.24);
  color: var(--white);
}

.button.primary:hover,
.button.primary:focus-visible {
  background: var(--accent-dark);
}

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

.button.secondary:hover,
.button.secondary:focus-visible {
  border-color: var(--text);
  box-shadow: var(--shadow-sm);
}

.signal-panel,
.download-panel,
.contact-form,
.result-panel,
.contact-card,
.tutorial-card,
.social-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
}

.signal-panel {
  position: relative;
  overflow: hidden;
  aspect-ratio: 16 / 10;
  border-color: rgba(18, 21, 27, 0.2);
  background: var(--surface-dark);
  box-shadow: var(--shadow-md);
}

.signal-panel::after {
  position: absolute;
  inset: 0;
  border: 1px solid rgba(255, 255, 255, 0.16);
  content: "";
  pointer-events: none;
}

.signal-panel img {
  display: block;
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
}

.section-band {
  padding: 4.25rem 0 5rem;
}

.social-section {
  border-top: 1px solid var(--line);
  padding: 3.25rem 0 4.5rem;
}

.social-heading {
  max-width: 680px;
  margin: 0 auto 1.55rem;
  text-align: center;
}

.social-heading p:not(.eyebrow) {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.section-heading {
  margin-bottom: 1.5rem;
}

.download-panel {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1.5rem;
  padding: 2rem;
  overflow: hidden;
  background:
    linear-gradient(90deg, rgba(185, 28, 28, 0.08), transparent 32%),
    var(--surface);
}

.download-panel::before {
  position: absolute;
  inset: 0 auto 0 0;
  width: 5px;
  background: var(--accent);
  content: "";
}

.download-panel .button {
  flex: 0 0 auto;
}

.contact-section {
  padding: 0 0 5rem;
}

.contact-form,
.result-panel,
.contact-card {
  display: grid;
  gap: 1.4rem;
  width: 100%;
  max-width: 620px;
  margin: 0 auto;
  padding: 2.5rem 2.25rem;
  border-radius: 12px;
  box-shadow: var(--shadow-md);
}

.contact-card {
  justify-items: start;
}

.contact-card h2 {
  margin-bottom: 0;
}

.contact-card p:not(.file-label) {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

.contact-card .file-label {
  margin-bottom: 0;
}

.field-group {
  display: grid;
  gap: 0.45rem;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.field-group input,
.field-group textarea {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 6px;
  background: var(--surface-muted);
  color: var(--text);
  font: inherit;
  font-weight: 500;
  line-height: 1.4;
  text-transform: none;
  letter-spacing: normal;
}

.field-group input {
  min-height: 48px;
  padding: 0 0.9rem;
}

.field-group textarea {
  min-height: 220px;
  resize: vertical;
  padding: 0.85rem 0.9rem;
}

.field-group input:focus,
.field-group textarea:focus {
  border-color: var(--accent);
  background: var(--surface);
  box-shadow: 0 0 0 3px rgba(185, 28, 28, 0.14);
  outline: none;
}

.contact-form .button {
  width: 100%;
  margin-top: 0.35rem;
  box-shadow: 0 8px 18px rgba(185, 28, 28, 0.18);
}

.result-panel .button {
  justify-self: start;
}

.field-error {
  color: var(--accent);
  font-size: 0.82rem;
  font-weight: 800;
}

.status-message {
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 0.9rem 1rem;
  color: var(--text);
  font-size: 0.95rem;
  font-weight: 800;
}

.status-message.is-success {
  border-color: rgba(22, 101, 52, 0.28);
  background: #f0fdf4;
  color: #14532d;
}

.status-message.is-error {
  border-color: rgba(185, 28, 28, 0.28);
  background: #fef2f2;
  color: var(--accent-dark);
}

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

.social-grid {
  align-items: center;
  justify-content: center;
}

.social-card {
  display: inline-grid;
  flex: 0 0 auto;
  place-items: center;
  width: 64px;
  height: 64px;
  padding: 0;
  overflow: hidden;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.social-card:hover,
.social-card:focus-visible {
  border-color: var(--accent);
  box-shadow: var(--shadow-sm);
}

.social-icon {
  display: grid;
  place-items: center;
  width: 100%;
  height: 100%;
  background: #1877f2;
  color: var(--white);
  font-family: Arial, Helvetica, sans-serif;
  font-size: 2.3rem;
  font-weight: 900;
}

.social-icon.play {
  background: var(--accent);
  font-size: 1.35rem;
}

.social-icon.instagram {
  background:
    radial-gradient(circle at 30% 105%, #fdf497 0 18%, #fd5949 43%, transparent 44%),
    linear-gradient(135deg, #833ab4, #c13584 45%, #e1306c 70%, #f77737);
}

.social-icon svg {
  width: 34px;
  height: 34px;
  fill: none;
  stroke: currentColor;
  stroke-width: 1.9;
  stroke-linecap: round;
  stroke-linejoin: round;
}

.page-title {
  padding: 4.5rem 0 2rem;
}

.tutorial-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding-bottom: 5rem;
}

.tutorial-card {
  overflow: hidden;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.tutorial-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
}

.video-placeholder {
  display: grid;
  place-items: center;
  aspect-ratio: 16 / 9;
  border-bottom: 1px solid var(--line);
  background:
    linear-gradient(135deg, rgba(18, 21, 27, 0.08), transparent 46%),
    linear-gradient(180deg, #ffffff, #eef2f6);
}

.tutorial-card iframe {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  border: 0;
}

.video-placeholder span {
  display: grid;
  place-items: center;
  width: 54px;
  height: 54px;
  border: 2px solid rgba(185, 28, 28, 0.55);
  border-radius: 50%;
  background: var(--surface);
  color: var(--accent);
}

.video-placeholder.coming-soon span {
  width: auto;
  min-width: 92px;
  padding: 0 1rem;
  border-radius: 999px;
  font-size: 0.78rem;
  font-weight: 900;
  text-transform: uppercase;
}

.tutorial-body {
  padding: 1.15rem;
}

.tutorial-body h2 {
  font-size: 1.28rem;
  line-height: 1.16;
}

.app-showcase {
  margin-top: 1rem;
}

.app-showcase .signal-panel {
  aspect-ratio: 16 / 9;
  max-width: 960px;
  margin: 0 auto;
}

.showcase-caption {
  max-width: 960px;
  margin: 0.9rem auto 0;
  color: var(--muted);
  font-size: 0.95rem;
  text-align: center;
}

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

.feature-card {
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  padding: 1.4rem;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.feature-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
}

.feature-icon {
  display: grid;
  place-items: center;
  width: 46px;
  height: 46px;
  margin-bottom: 0.9rem;
  border-radius: 10px;
  background: var(--surface-muted);
  font-size: 1.4rem;
  line-height: 1;
}

.feature-card h3 {
  margin-bottom: 0.45rem;
  font-size: 1.16rem;
}

.feature-card p {
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.96rem;
}

.steps {
  display: grid;
  gap: 0.9rem;
  margin: 0;
  padding: 0;
  list-style: none;
  counter-reset: step;
}

.step {
  display: flex;
  gap: 1.1rem;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  padding: 1.25rem 1.4rem;
}

.step-num {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: var(--accent);
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 900;
  line-height: 1;
}

.step h3 {
  margin-bottom: 0.3rem;
  font-size: 1.16rem;
}

.step p {
  max-width: 62ch;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.shot-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1.25rem;
}

.shot {
  margin: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.shot:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
}

.shot img {
  display: block;
  width: 100%;
  height: auto;
  border-bottom: 1px solid var(--line);
  background: var(--surface-muted);
}

.shot figcaption {
  padding: 0.95rem 1.15rem;
  color: var(--muted);
  font-size: 0.96rem;
  font-weight: 600;
}

.req-list {
  display: grid;
  gap: 0.6rem;
  max-width: 62ch;
  margin: 0;
  padding-left: 1.2rem;
  color: var(--muted);
  font-size: 1.02rem;
}

.req-list strong {
  color: var(--text);
}

.section-heading p:not(.eyebrow) {
  max-width: 62ch;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 1.05rem;
}

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

.video-embed {
  position: relative;
  aspect-ratio: 16 / 9;
  max-width: 960px;
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-dark);
  box-shadow: var(--shadow-md);
}

.video-embed iframe {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  border: 0;
}

.report-viewer {
  max-width: 820px;
  height: min(85vh, 1060px);
  margin: 0 auto;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface-muted);
  box-shadow: var(--shadow-md);
}

.report-viewer iframe {
  display: block;
  width: 100%;
  height: 100%;
  border: 0;
}

.report-actions {
  max-width: 820px;
  margin: 1rem auto 0;
  text-align: center;
}

.check-list {
  display: grid;
  gap: 0.9rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.check-list li {
  display: flex;
  gap: 1.1rem;
  align-items: flex-start;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  padding: 1.25rem 1.4rem;
}

.check-mark {
  display: grid;
  flex: 0 0 auto;
  place-items: center;
  width: 40px;
  height: 40px;
  border-radius: 50%;
  background: #16a34a;
  color: var(--white);
  font-size: 1.1rem;
  font-weight: 900;
  line-height: 1;
}

.check-list h3 {
  margin-bottom: 0.3rem;
  font-size: 1.16rem;
}

.check-list p {
  max-width: 62ch;
  margin-bottom: 0;
  color: var(--muted);
  font-size: 0.98rem;
}

.check-list a {
  color: var(--accent);
  font-weight: 700;
}

.check-list a:hover,
.check-list a:focus-visible {
  text-decoration: underline;
}

.price-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 1rem;
  align-items: stretch;
}

.price-card {
  display: flex;
  flex-direction: column;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: var(--surface);
  box-shadow: var(--shadow-sm);
  padding: 1.75rem;
  transition:
    transform 160ms ease,
    border-color 160ms ease,
    box-shadow 160ms ease;
}

.price-card:hover {
  transform: translateY(-2px);
  border-color: var(--line-strong);
  box-shadow: var(--shadow-md);
}

.price-card.featured {
  border-color: var(--accent);
  box-shadow: 0 10px 24px rgba(185, 28, 28, 0.14);
}

.price-badge {
  align-self: flex-start;
  margin-bottom: 0.9rem;
  padding: 0.28rem 0.6rem;
  border-radius: 999px;
  background: var(--surface-muted);
  color: var(--muted);
  font-size: 0.7rem;
  font-weight: 900;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.price-card.featured .price-badge {
  background: var(--accent);
  color: var(--white);
}

.price-card h3 {
  margin-bottom: 0.15rem;
  font-size: 1.35rem;
}

.price-amount {
  display: flex;
  align-items: baseline;
  gap: 0.4rem;
  margin: 0.5rem 0 0.15rem;
}

.price-value {
  color: var(--text);
  font-size: 2.6rem;
  font-weight: 900;
  line-height: 1;
}

.price-period {
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 700;
}

.price-features {
  display: grid;
  gap: 0.5rem;
  margin: 1.15rem 0 1.6rem;
  padding: 0;
  list-style: none;
  color: var(--muted);
  font-size: 0.98rem;
}

.price-features li {
  position: relative;
  padding-left: 1.5rem;
}

.price-features li::before {
  position: absolute;
  left: 0;
  color: #16a34a;
  font-weight: 900;
  content: "✓";
}

.price-card .button {
  width: 100%;
  margin-top: auto;
}

.site-footer {
  display: flex;
  align-items: center;
  width: var(--container);
  margin: 0 auto;
  border-top: 1px solid var(--line);
  padding: 1.35rem 0 2rem;
  color: var(--muted);
  font-size: 0.92rem;
}

@media (max-width: 1180px) {
  .site-header {
    position: static;
  }

  .site-header-inner {
    align-items: flex-start;
    flex-direction: column;
  }

  .brand img {
    height: 76px;
  }

  .nav-links {
    justify-content: flex-start;
    width: 100%;
  }

  .hero {
    grid-template-columns: 1fr;
    min-height: auto;
    padding-top: 3.5rem;
  }

  h1 {
    font-size: 3.5rem;
  }

  .page-title h1 {
    font-size: 2.7rem;
  }

  .signal-panel {
    max-width: 820px;
  }

  .download-panel {
    align-items: stretch;
    flex-direction: column;
  }

  .contact-form,
  .result-panel {
    max-width: none;
  }

  .tutorial-grid {
    grid-template-columns: 1fr;
  }

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

@media (max-width: 560px) {
  :root {
    --container: min(1160px, calc(100% - 28px));
  }

  .site-header-inner {
    padding: 10px 0 12px;
  }

  .brand img {
    height: 64px;
  }

  .nav-links {
    display: grid;
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.4rem;
  }

  .nav-links a {
    min-width: 0;
    padding: 0.62rem 0.48rem;
    font-size: 0.82rem;
    text-align: center;
  }

  .hero {
    gap: 2rem;
    padding: 3rem 0 3.25rem;
  }

  h1 {
    font-size: 2.72rem;
  }

  .page-title h1 {
    font-size: 2.25rem;
  }

  h2 {
    font-size: 1.62rem;
  }

  h3 {
    font-size: 1.35rem;
  }

  .hero-copy > p:not(.eyebrow),
  .page-title > p,
  .download-panel p,
  .tutorial-body p {
    font-size: 1rem;
  }

  .button,
  .download-panel .button {
    width: 100%;
  }

  .section-band {
    padding: 3rem 0 4rem;
  }

  .page-title {
    padding: 3.25rem 0 1.5rem;
  }

  .download-panel {
    padding: 1.35rem;
  }

  .contact-section {
    padding-bottom: 4rem;
  }

  .contact-form,
  .result-panel {
    padding: 1.35rem;
  }

  .social-section {
    padding: 2.75rem 0 3.75rem;
  }

  .feature-grid {
    grid-template-columns: 1fr;
  }

  .shot-grid,
  .price-grid {
    grid-template-columns: 1fr;
  }

  .report-viewer {
    height: min(75vh, 720px);
  }

  .step,
  .check-list li {
    padding: 1.1rem;
  }

  .site-footer {
    padding-bottom: 1.6rem;
  }
}