:root {
  --bg: #f6f8f3;
  --surface: #ffffff;
  --text: #17201d;
  --muted: #66726d;
  --line: #dce3dc;
  --accent: #2f6f63;
  --accent-strong: #174d43;
  --warning: #ad2f3d;
  --shadow: 0 18px 50px rgba(28, 43, 38, 0.13);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: "Yu Gothic", "Hiragino Kaku Gothic ProN", Meiryo, system-ui, sans-serif;
  letter-spacing: 0;
  line-height: 1.7;
}

img {
  display: block;
  max-width: 100%;
}

button,
input {
  font: inherit;
}

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

.site-header {
  position: sticky;
  top: 0;
  z-index: 20;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  min-height: 72px;
  padding: 12px clamp(18px, 5vw, 64px);
  border-bottom: 1px solid rgba(220, 227, 220, 0.78);
  background: rgba(246, 248, 243, 0.9);
  backdrop-filter: blur(18px);
}

.brand img {
  width: 160px;
  height: auto;
}

.top-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 18px;
  color: var(--muted);
  font-size: 0.92rem;
}

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

.section-band,
.section-grid,
.device-list,
.plan-section,
.truth-section {
  width: min(1120px, calc(100% - 36px));
  margin: 0 auto;
}

.hero {
  position: relative;
  min-height: min(720px, calc(100vh - 72px));
  display: grid;
  align-items: end;
  padding: clamp(42px, 8vw, 92px) 0;
}

.hero-media {
  position: absolute;
  inset: 0;
  z-index: -1;
  border-radius: 0 0 8px 8px;
  background:
    linear-gradient(90deg, rgba(246, 248, 243, 0.96), rgba(246, 248, 243, 0.7) 45%, rgba(246, 248, 243, 0.18)),
    url("./images/img_hero_home_1200x500.png") center / cover;
  box-shadow: var(--shadow);
}

.hero-copy {
  width: min(620px, 100%);
  padding: 36px 0;
}

.eyebrow,
.card-kicker {
  margin: 0 0 8px;
  color: var(--accent);
  font-size: 0.78rem;
  font-weight: 700;
  text-transform: uppercase;
}

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

h1 {
  margin-bottom: 16px;
  font-size: clamp(2.4rem, 7vw, 5.8rem);
  line-height: 0.98;
}

h2 {
  margin-bottom: 14px;
  font-size: clamp(1.8rem, 4vw, 3.1rem);
  line-height: 1.15;
}

h3 {
  margin-bottom: 8px;
  font-size: 1.28rem;
  line-height: 1.25;
}

.hero-copy p,
.section-heading p,
.assistant-copy p,
.plan-section p {
  color: var(--muted);
  font-size: 1.04rem;
}

.hero-actions,
.control-row {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: 12px;
  margin-top: 24px;
}

.button,
.text-button,
.share-button {
  min-height: 44px;
  border: 1px solid transparent;
  border-radius: 6px;
  padding: 10px 16px;
  cursor: pointer;
  transition: transform 0.2s ease, background 0.2s ease, border-color 0.2s ease;
}

.button:hover,
.text-button:hover,
.share-button:hover,
.icon-button:hover {
  transform: translateY(-1px);
}

.primary {
  background: var(--accent-strong);
  color: #fff;
}

.secondary,
.text-button {
  border-color: var(--line);
  background: rgba(255, 255, 255, 0.74);
  color: var(--accent-strong);
}

.text-button:disabled {
  cursor: not-allowed;
  opacity: 0.46;
}

.trust-strip {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1px;
  width: min(1120px, calc(100% - 36px));
  margin: 24px auto 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--line);
}

.trust-strip div {
  padding: 20px;
  background: rgba(255, 255, 255, 0.78);
}

.trust-strip strong {
  display: block;
  font-size: 2rem;
  line-height: 1;
}

.trust-strip span {
  color: var(--muted);
  font-size: 0.9rem;
}

.section-grid {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1.2fr);
  gap: clamp(24px, 5vw, 56px);
  align-items: center;
  padding: 92px 0 40px;
}

.wide-image img,
.device-card,
.ai-panel img,
.truth-grid article {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--surface);
  box-shadow: var(--shadow);
}

.wide-image img {
  aspect-ratio: 3 / 2;
  object-fit: cover;
}

.device-list {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  padding: 28px 0 92px;
}

.device-card {
  display: grid;
  grid-template-columns: 42% 1fr;
  gap: 18px;
  padding: 14px;
}

.device-card img {
  width: 100%;
  height: 100%;
  min-height: 210px;
  border-radius: 6px;
  object-fit: cover;
}

.device-card p {
  color: var(--muted);
}

.icon-button {
  display: grid;
  place-items: center;
  width: 44px;
  height: 44px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--accent-strong);
  color: #fff;
  cursor: pointer;
}

.assistant-section {
  display: grid;
  grid-template-columns: minmax(0, 0.9fr) minmax(0, 1.1fr);
  gap: clamp(24px, 5vw, 56px);
  align-items: center;
  padding: 86px 0;
  border-top: 1px solid var(--line);
}

.ai-panel {
  position: relative;
}

.ai-panel img {
  width: 100%;
  aspect-ratio: 4 / 3;
  object-fit: cover;
}

.hidden-log {
  position: absolute;
  right: 18px;
  bottom: 18px;
  display: grid;
  gap: 6px;
  width: min(360px, calc(100% - 36px));
  padding: 14px;
  border: 1px solid rgba(173, 47, 61, 0.42);
  border-radius: 6px;
  background: rgba(16, 18, 19, 0.86);
  color: #f4d8dc;
  font-family: Consolas, "Courier New", monospace;
  font-size: 0.78rem;
  opacity: 0;
  pointer-events: none;
  transform: translateY(8px);
  transition: opacity 0.2s ease, transform 0.2s ease;
}

.hidden-log.is-visible {
  opacity: 1;
  transform: translateY(0);
}

.plan-section {
  display: grid;
  grid-template-columns: minmax(0, 0.8fr) minmax(0, 1fr);
  gap: clamp(24px, 5vw, 56px);
  align-items: center;
  padding: 82px 0;
  border-top: 1px solid var(--line);
}

.search-box {
  display: grid;
  gap: 10px;
  padding: 22px;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: rgba(255, 255, 255, 0.8);
}

.search-box label {
  font-weight: 700;
}

.search-box div {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 10px;
}

.search-box input {
  min-width: 0;
  min-height: 44px;
  border: 1px solid var(--line);
  border-radius: 6px;
  padding: 10px 12px;
  background: #fff;
}

.truth-section {
  display: none;
  padding: 60px 0 90px;
}

.truth-hero {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: clamp(24px, 5vw, 50px);
  align-items: center;
}

.truth-hero img,
.truth-grid img {
  width: 100%;
  border-radius: 6px;
  object-fit: cover;
}

.truth-hero img {
  aspect-ratio: 12 / 5;
}

.truth-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 18px;
  margin-top: 28px;
}

.truth-grid article {
  padding: 14px;
}

.truth-grid img {
  aspect-ratio: 4 / 3;
  margin-bottom: 14px;
}

.quote-share {
  width: min(720px, 100%);
  margin: 42px auto 0;
  padding: 20px;
  border-left: 3px solid var(--warning);
  background: rgba(255, 255, 255, 0.08);
}

.quote-share p {
  margin-bottom: 14px;
}

.share-button {
  min-height: 38px;
  padding: 8px 12px;
  background: #e7e1d7;
  color: #161616;
}

.quote-share small {
  display: block;
  margin-top: 8px;
  color: #aaa;
}

.site-footer {
  display: grid;
  gap: 4px;
  padding: 28px clamp(18px, 5vw, 64px);
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.85rem;
}

.site-footer p {
  margin: 0;
}

.glitch-overlay {
  position: fixed;
  inset: 0;
  z-index: 100;
  display: grid;
  place-items: center;
  background: rgba(0, 0, 0, 0.92);
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.3s ease;
}

.glitch-overlay.is-active {
  opacity: 1;
  pointer-events: auto;
}

.glitch-noise,
.noise-layer {
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(rgba(255, 255, 255, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 255, 255, 0.05) 1px, transparent 1px),
    url("./images/img_noise_overlay_1200x800.png");
  background-size: 8px 8px, 11px 11px, cover;
  mix-blend-mode: screen;
  opacity: 0.55;
  animation: jitter 0.18s steps(2) infinite;
}

.noise-layer {
  position: fixed;
  z-index: 5;
  opacity: 0;
  pointer-events: none;
}

.glitch-message {
  position: relative;
  z-index: 1;
  border: 1px solid rgba(255, 255, 255, 0.3);
  border-radius: 6px;
  padding: 18px 22px;
  background: rgba(12, 13, 13, 0.82);
  color: #f3f3f3;
  font-weight: 700;
  cursor: pointer;
}

@keyframes jitter {
  0% { transform: translate(0, 0); }
  50% { transform: translate(2px, -1px); }
  100% { transform: translate(-1px, 1px); }
}

.truth-mode {
  background: #111;
  color: #ddd;
  --surface: #181818;
  --text: #ddd;
  --muted: #a5a5a5;
  --line: #303030;
  --accent: #d55b66;
  --accent-strong: #d8d0c5;
  --shadow: 0 18px 50px rgba(0, 0, 0, 0.35);
}

.truth-mode .site-header {
  background: rgba(17, 17, 17, 0.92);
}

.truth-mode .hero-media {
  background:
    linear-gradient(90deg, rgba(17, 17, 17, 0.96), rgba(17, 17, 17, 0.72) 45%, rgba(17, 17, 17, 0.16)),
    url("./images/img_hero_truth_1200x500.png") center / cover;
}

.truth-mode .trust-strip div,
.truth-mode .search-box,
.truth-mode .secondary,
.truth-mode .text-button {
  background: rgba(24, 24, 24, 0.82);
}

.truth-mode .noise-layer {
  opacity: 0.16;
}

.truth-mode .truth-section {
  display: block;
}

.truth-mode .primary,
.truth-mode .icon-button {
  background: #d8d0c5;
  color: #111;
}

@media (max-width: 860px) {
  .site-header {
    align-items: flex-start;
    flex-direction: column;
    gap: 8px;
  }

  .section-grid,
  .assistant-section,
  .plan-section,
  .truth-hero {
    grid-template-columns: 1fr;
  }

  .device-list,
  .truth-grid {
    grid-template-columns: 1fr;
  }

  .device-card {
    grid-template-columns: 1fr;
  }

  .device-card img {
    min-height: auto;
    aspect-ratio: 4 / 3;
  }
}

@media (max-width: 620px) {
  .trust-strip {
    grid-template-columns: 1fr;
  }

  .hero {
    min-height: 620px;
  }

  .hero-actions,
  .search-box div {
    grid-template-columns: 1fr;
  }

  .button,
  .text-button,
  .share-button {
    width: 100%;
    text-align: center;
  }
}