:root {
  --bg: #0f1115;
  --surface: #12151b;
  --elev: #171a21;
  --text: #e8eaed;
  --muted: #a6adbb;
  --subtle: #7c8596;
  --acc: #6da7ff;
  --ok: #6dd3a8;
  --warn: #ffc861;
  --err: #ff7a7a;
  --radius-1: 12px;
  --radius-2: 16px;
  --radius-3: 20px;
  --space-1: 8px;
  --space-2: 12px;
  --space-3: 16px;
  --space-4: 24px;
  --space-5: 32px;
  --space-6: 48px;
  --shadow-1: 0 6px 24px rgba(0, 0, 0, 0.24);
  --shadow-2: 0 10px 32px rgba(0, 0, 0, 0.3);
  --ease-out: cubic-bezier(0.22, 0.61, 0.36, 1);
  --ease-in-out: cubic-bezier(0.4, 0, 0.2, 1);
  --dur-xs: 120ms;
  --dur-sm: 220ms;
  --dur-md: 360ms;
  --dur-lg: 600ms;
}

* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: "Noto Sans JP", "Inter", system-ui, -apple-system,
    BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: var(--bg);
  color: var(--text);
  line-height: 1.75;
  letter-spacing: 0.02em;
  -webkit-font-smoothing: antialiased;
}

a {
  color: inherit;
  text-decoration: none;
}
a:hover {
  color: var(--acc);
}

img {
  max-width: 100%;
  display: block;
  border-radius: var(--radius-2);
}

main {
  overflow-x: hidden;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.container {
  width: min(1200px, calc(100% - clamp(16px, 4vw, 40px) * 2));
  margin-inline: auto;
}

section {
  padding-block: clamp(56px, 10vw, 96px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}

.section-header {
  max-width: 720px;
  margin-bottom: var(--space-6);
}
.section-header p {
  color: var(--muted);
}

h1,
h2,
h3 {
  font-weight: 600;
  color: var(--text);
}
h1 {
  font-size: clamp(28px, 3.5vw, 44px);
  line-height: 1.2;
}
h2 {
  font-size: clamp(22px, 2.5vw, 32px);
  line-height: 1.25;
}
h3 {
  font-size: clamp(18px, 1.6vw, 24px);
  line-height: 1.3;
}

p {
  max-width: 58ch;
}

.eyebrow {
  font-size: 0.9rem;
  text-transform: uppercase;
  color: #fff;
  letter-spacing: 0.24em;
  display: inline-flex;
  align-items: center;
}

.underline-wipe {
  position: relative;
  padding-bottom: 6px;
}
.underline-wipe::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: 0;
  width: 100%;
  height: 2px;
  background: linear-gradient(90deg, transparent, var(--acc), transparent);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-md) var(--ease-out);
}
.section-header:hover .underline-wipe::after,
.hero-copy:hover .underline-wipe::after {
  transform: scaleX(1);
}

/* ===== Header ===== */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  background: rgba(15, 17, 21, 0.85);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
  transition: transform var(--dur-sm) var(--ease-in-out),
    background var(--dur-md) var(--ease-in-out),
    box-shadow var(--dur-md) var(--ease-in-out);
}
.site-header.is-condensed {
  background: rgba(12, 14, 18, 0.95);
  box-shadow: 0 18px 40px rgba(0, 0, 0, 0.36);
}
.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  /* 統一：こちらの余白を正とする */
  padding-block: clamp(20px, 4.8vw, 34px);
}
.site-header.is-condensed .header-inner {
  padding-block: clamp(14px, 3vw, 20px);
}

/* ロゴ（社名） */
.site-header .logo {
  display: inline-block;
  white-space: nowrap;
  font-weight: 650; /* 800/900に上げたい場合はGoogle Fonts側も対応を */
  font-size: clamp(22px, 2.6vw, 34px);
  line-height: 1.05;
  letter-spacing: 0.02em;
  color: #fff;
  text-decoration: none;
}

.logo {
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.main-nav ul {
  display: flex;
  gap: var(--space-4);
  list-style: none;
}

.nav-link {
  position: relative;
  padding: 8px 0;
  color: var(--muted);
  transition: color var(--dur-sm) var(--ease-out);
}
.nav-link::after {
  content: "";
  position: absolute;
  left: 0;
  bottom: -6px;
  width: 100%;
  height: 2px;
  background: var(--acc);
  transform: scaleX(0);
  transform-origin: left;
  transition: transform var(--dur-sm) var(--ease-out);
}
.nav-link.is-active,
.nav-link:focus-visible {
  color: var(--text);
}
.nav-link.is-active::after {
  transform: scaleX(1);
}

.nav-toggle {
  display: none;
  align-items: center;
  justify-content: center;
  width: 46px;
  height: 46px;
  border-radius: var(--radius-2);
  border: 1px solid rgba(255, 255, 255, 0.18);
  background: rgba(255, 255, 255, 0.04);
  color: inherit;
  transition: background var(--dur-sm) var(--ease-out),
    border-color var(--dur-sm) var(--ease-out),
    transform var(--dur-xs) var(--ease-out);
}
.nav-toggle:hover,
.nav-toggle:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  border-color: rgba(255, 255, 255, 0.36);
  transform: translateY(-1px);
}
.nav-toggle__bars {
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 6px;
}
.nav-toggle__bars span {
  display: block;
  width: 24px;
  height: 2px;
  border-radius: 999px;
  background: currentColor;
  transition: transform var(--dur-sm) var(--ease-out),
    opacity var(--dur-sm) var(--ease-out), width var(--dur-sm) var(--ease-out);
}
.nav-toggle__bars span:nth-child(2) {
  width: 18px;
  align-self: flex-end;
}

.nav-backdrop {
  position: fixed;
  inset: 0;
  background: rgba(5, 9, 15, 0.68);
  opacity: 0;
  pointer-events: none;
  transition: opacity var(--dur-sm) var(--ease-out);
  z-index: 60;
}
body.nav-open {
  overflow: hidden;
}
body.nav-open .nav-backdrop {
  opacity: 1;
  pointer-events: auto;
}
body.nav-open .nav-toggle__bars span:nth-child(1) {
  transform: translateY(8px) rotate(45deg);
}
body.nav-open .nav-toggle__bars span:nth-child(2) {
  opacity: 0;
  width: 24px;
}
body.nav-open .nav-toggle__bars span:nth-child(3) {
  transform: translateY(-8px) rotate(-45deg);
}

/* ===== Hero ===== */
.hero {
  position: relative;
  background: radial-gradient(
      circle at 20% 20%,
      rgba(109, 167, 255, 0.12),
      transparent 55%
    ),
    radial-gradient(
      circle at 80% 30%,
      rgba(109, 167, 255, 0.08),
      transparent 60%
    ),
    var(--surface);
  padding-top: clamp(120px, 18vw, 168px);
}
.hero-content {
  display: grid;
  gap: var(--space-6);
  align-items: center;
}
.hero-copy {
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--space-3);
}
.hero-media {
  position: relative;
  justify-self: center;
}
.hero-orb {
  position: absolute;
  inset: 10% 15% 0 5%;
  background: radial-gradient(
    circle,
    rgba(109, 167, 255, 0.3),
    transparent 70%
  );
  filter: blur(40px);
  transform: translateZ(0);
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 48px;
  padding: 0 var(--space-5);
  border-radius: var(--radius-3);
  border: 1px solid transparent;
  font-weight: 600;
  letter-spacing: 0.04em;
  cursor: pointer;
  transition: transform var(--dur-xs) var(--ease-out),
    box-shadow var(--dur-sm) var(--ease-out),
    background var(--dur-sm) var(--ease-out),
    color var(--dur-xs) var(--ease-out);
}
.btn-primary {
  background: var(--acc);
  color: #09101d;
  box-shadow: var(--shadow-1);
}
.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-1px);
  box-shadow: var(--shadow-2);
}
.btn-secondary {
  background: rgba(109, 167, 255, 0.12);
  color: var(--text);
  border-color: rgba(109, 167, 255, 0.38);
}
.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: rgba(109, 167, 255, 0.24);
}
.btn-ghost {
  background: transparent;
  color: var(--text);
  border-color: rgba(255, 255, 255, 0.16);
}
.btn-ghost:hover,
.btn-ghost:focus-visible {
  border-color: rgba(255, 255, 255, 0.32);
  color: var(--acc);
}

.hover-lift {
  transition: transform var(--dur-sm) var(--ease-out);
}
.hover-lift:hover {
  transform: translateY(-4px);
}
.magnet-btn {
  position: relative;
  overflow: hidden;
}

/* ===== Sections ===== */
.services {
  background: var(--surface);
}
.service-grid {
  display: grid;
  gap: var(--space-5);
}

.service-card {
  background: var(--elev);
  border-radius: var(--radius-3);
  box-shadow: var(--shadow-1);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: transform var(--dur-sm) var(--ease-out),
    box-shadow var(--dur-sm) var(--ease-out);
}
.service-card:hover {
  transform: translateY(-4px) scale(1.02);
  box-shadow: var(--shadow-2);
}
.service-card__image {
  border-radius: 0;
  aspect-ratio: 3/2;
  object-fit: cover;
  transform: scale(1.02);
  transition: transform var(--dur-md) var(--ease-out),
    filter var(--dur-md) var(--ease-out);
}
.service-card:hover .service-card__image {
  transform: scale(1.06) rotate(2deg);
  filter: saturate(1.2);
}
.service-card__body {
  padding: var(--space-5);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.service-card__bullets {
  list-style: disc;
  padding-left: 1.4rem;
  color: var(--muted);
}
.service-card__price {
  color: var(--subtle);
  font-weight: 500;
}

.about {
  background: var(--surface);
}
.about-content {
  display: grid;
  gap: var(--space-5);
}

.company-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--elev);
  border-radius: var(--radius-3);
  overflow: hidden;
}
.company-table th,
.company-table td {
  padding: var(--space-4) var(--space-5);
  text-align: left;
  border-bottom: 1px solid rgba(255, 255, 255, 0.06);
}
.company-table th {
  width: 30%;
  color: var(--subtle);
  background: rgba(255, 255, 255, 0.02);
}
.company-table tr:hover {
  background: rgba(109, 167, 255, 0.08);
}

.map-wrapper {
  margin-top: var(--space-6);
  border-radius: var(--radius-3);
  overflow: hidden;
  box-shadow: var(--shadow-1);
}
.map-wrapper iframe {
  width: 100%;
  height: clamp(280px, 40vw, 420px);
  border: 0;
}

.contact {
  background: var(--surface);
}
.contact-layout {
  display: grid;
  gap: var(--space-5);
}

.contact-form {
  background: rgba(23, 26, 33, 1);
  border-radius: var(--radius-3);
  padding: var(--space-6);
  box-shadow: var(--shadow-1);
  display: flex;
  flex-direction: column;
  gap: var(--space-4);
}
.form-grid {
  display: grid;
  gap: var(--space-4);
}
.form-field {
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  color: var(--text);
}
.form-field input,
.form-field textarea {
  background: rgba(255, 255, 255, 0.04);
  border: 1px solid rgba(255, 255, 255, 0.08);
  color: var(--text);
  padding: var(--space-3);
  border-radius: var(--radius-2);
  transition: border-color var(--dur-sm) var(--ease-out),
    box-shadow var(--dur-sm) var(--ease-out);
}
.form-field input:focus-visible,
.form-field textarea:focus-visible {
  border-color: var(--acc);
  box-shadow: 0 0 0 3px rgba(109, 167, 255, 0.24);
  outline: none;
}
.form-field--full {
  grid-column: 1 / -1;
}

.form-checkbox {
  display: flex;
  align-items: center;
  gap: var(--space-2);
  font-size: 0.95rem;
}
.form-checkbox input {
  width: 20px;
  height: 20px;
  accent-color: var(--acc);
}
.form-note {
  font-size: 0.9rem;
  color: var(--muted);
}

.link-button {
  background: none;
  border: none;
  color: var(--acc);
  cursor: pointer;
  padding: 0;
  font: inherit;
  text-decoration: underline;
}

.form-status {
  min-height: 28px;
  font-weight: 500;
}

.contact-aside {
  display: flex;
}
.contact-card {
  background: rgba(23, 26, 33, 0.8);
  border-radius: var(--radius-3);
  padding: var(--space-5);
  box-shadow: var(--shadow-1);
  display: flex;
  flex-direction: column;
  gap: var(--space-3);
}
.contact-card ul {
  list-style: disc;
  padding-left: 1.3rem;
  color: var(--muted);
}

/* ===== Privacy ===== */
.privacy {
  background: var(--surface);
}
.privacy-content {
  background: rgba(23, 26, 33, 0.85);
  padding: var(--space-6);
  border-radius: var(--radius-3);
  box-shadow: var(--shadow-1);
}

/* 重複整理：この1本に統一 */
#privacy .privacy-content p {
  max-width: clamp(60ch, 90%, 90ch);
  margin: 1rem auto 0;
  line-height: 1.9;
  text-align: left;
  opacity: 0.95;
}
@media (max-width: 640px) {
  #privacy .privacy-content p {
    max-width: 90ch;
  }
}

/* ===== Footer ===== */
.site-footer {
  background: #0b0d12;
  padding-block: var(--space-5);
}
.footer-inner {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: var(--space-3);
  color: var(--subtle);
}

/* ===== Scroll progress ===== */
.scroll-progress {
  position: fixed;
  inset: 0 0 auto 0;
  height: 2px;
  background: rgba(255, 255, 255, 0.06);
  z-index: 200;
  transform-origin: left;
}
.scroll-progress__bar {
  height: 100%;
  width: 100%;
  background: var(--acc);
  transform: scaleX(0);
  transform-origin: left;
}

/* ===== Toast ===== */
.toast-container {
  position: fixed;
  bottom: 24px;
  right: 24px;
  display: flex;
  flex-direction: column;
  gap: var(--space-2);
  pointer-events: none;
}
.toast {
  background: rgba(23, 26, 33, 0.94);
  border: 1px solid rgba(109, 167, 255, 0.2);
  border-radius: var(--radius-2);
  padding: var(--space-3) var(--space-4);
  box-shadow: var(--shadow-1);
  color: var(--text);
  opacity: 0;
  transform: translateY(8px);
  transition: opacity var(--dur-sm) var(--ease-out),
    transform var(--dur-sm) var(--ease-out);
}
.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ===== Reveal ===== */
.reveal {
  opacity: 0;
  transform: translateY(24px);
}
.reveal.fade-right {
  transform: translateX(24px);
}
.reveal.zoom-in {
  transform: scale(0.92);
}
.reveal.is-visible {
  opacity: 1;
  transform: translateY(0);
}
.reveal.fade-right.is-visible {
  transform: translateX(0);
}
.reveal.zoom-in.is-visible {
  transform: scale(1);
}

/* ===== Focus ===== */
:focus-visible {
  outline: 3px solid rgba(109, 167, 255, 0.6);
  outline-offset: 2px;
}

/* ===== Responsive ===== */
@media (max-width: 960px) {
  .header-inner {
    gap: var(--space-3);
  }
  .nav-toggle {
    display: inline-flex;
  }
  .main-nav {
    position: fixed;
    top: clamp(72px, 14vw, 108px);
    left: 50%;
    width: min(480px, calc(100% - 32px));
    background: linear-gradient(
      180deg,
      rgba(18, 21, 27, 0.98) 0%,
      rgba(12, 14, 19, 0.92) 100%
    );
    border: 1px solid rgba(255, 255, 255, 0.08);
    border-radius: var(--radius-3);
    box-shadow: var(--shadow-2);
    padding: clamp(32px, 9vw, 56px) clamp(20px, 9vw, 44px);
    transform: translate(-50%, -12%) scale(0.96);
    opacity: 0;
    pointer-events: none;
    z-index: 90;
    transition: opacity var(--dur-sm) var(--ease-out),
      transform var(--dur-sm) var(--ease-out);
    backdrop-filter: blur(18px);
  }
  .main-nav ul {
    flex-direction: column;
    gap: var(--space-3);
    width: 100%;
  }
  .main-nav li {
    width: 100%;
  }
  .main-nav .nav-link {
    display: flex;
    align-items: center;
    justify-content: space-between;
    width: 100%;
    padding: var(--space-2) 0;
    font-size: 1.05rem;
    font-weight: 500;
    color: var(--text);
    letter-spacing: 0.05em;
  }
  .main-nav .nav-link::after {
    left: auto;
    right: 0;
    bottom: 0;
    width: 42px;
    height: 2px;
    border-radius: 999px;
    transform-origin: right;
  }
  body.nav-open .main-nav {
    transform: translate(-50%, 0) scale(1);
    opacity: 1;
    pointer-events: auto;
  }
  body.nav-open .main-nav .nav-link::after {
    transform-origin: left;
  }
  .main-nav .nav-link.is-active::after {
    transform-origin: left;
  }
  .main-nav li + li {
    border-top: 1px solid rgba(255, 255, 255, 0.06);
  }
}

@media (min-width: 640px) {
  .hero-content {
    grid-template-columns: repeat(12, 1fr);
  }
  .hero-copy {
    grid-column: span 7;
  }
  .hero-media {
    grid-column: span 5;
  }
  .service-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
  .about-content {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    align-items: start;
  }
  .form-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  section {
    padding-block: clamp(48px, 18vw, 72px);
  }
  .section-header {
    margin-bottom: var(--space-5);
    text-align: center;
  }
  .section-header p {
    margin-inline: auto;
  }

  .hero {
    text-align: center;
    padding-top: clamp(112px, 26vw, 168px);
  }
  .hero-copy {
    align-items: center;
  }
  .hero-copy p {
    text-align: center;
    margin-inline: auto;
  }
  .hero-actions {
    justify-content: center;
  }
  .hero-media {
    max-width: min(360px, 78vw);
  }

  .services .section-header,
  .about .section-header,
  .contact .section-header {
    text-align: center;
  }

  .service-card {
    flex-direction: column;
  }
  .service-card__body {
    padding: var(--space-4) var(--space-5);
  }

  .company-table {
    font-size: 0.95rem;
  }
  .company-table th,
  .company-table td {
    padding: var(--space-3) var(--space-4);
  }

  .contact-form {
    padding: var(--space-5);
  }
  .map-wrapper {
    margin-top: var(--space-4);
  }
}

@media (min-width: 960px) {
  .service-grid {
    grid-template-columns: repeat(3, minmax(0, 1fr));
  }
  .contact-layout {
    grid-template-columns: 2fr 1fr;
  }
}

@media (max-width: 720px) {
  .main-nav ul {
    gap: var(--space-2);
    font-size: 0.9rem;
  }
  .footer-inner {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
  .reveal,
  .toast {
    transform: none !important;
  }
}

/* ===== Hero: 背景画像表示 ===== */
.hero--bg {
  position: relative;
  min-height: min(78svh, 820px);
  display: flex;
  align-items: center;
  color: #fff;
  background-image: var(--hero-image);
  background-position: center;
  background-size: cover;
  background-repeat: no-repeat;
  background-color: #111;
  overflow: clip;
  isolation: isolate;
}
.hero--bg::before {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.45),
    rgba(0, 0, 0, 0.35)
  );
  z-index: 0;
}
.hero--bg .hero-content {
  position: relative;
  z-index: 1;
}
.hero--bg .hero-copy {
  max-width: 56rem;
  padding-block: clamp(24px, 6vw, 72px);
}
.hero--bg .hero-copy h1 {
  line-height: 1.1;
  font-size: clamp(28px, 5.6vw, 56px);
  margin: 0.2em 0 0.4em;
}
.hero--bg .hero-copy p {
  font-size: clamp(15px, 2.2vw, 20px);
  opacity: 0.95;
  margin: 0 0 1.2em;
}
@media (min-width: 1024px) {
  .hero--bg[data-parallax] {
    background-attachment: fixed;
  }
}
@media (max-width: 768px) {
  .hero--bg {
    min-height: 70svh;
  }
}

/* ===== Back-to-top floating button ===== */
.back-to-top {
  position: fixed;
  right: clamp(12px, 2vw, 20px);
  bottom: clamp(12px, 2vw, 20px);
  z-index: 1000;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 10px 14px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.2);
  color: #fff;
  font-weight: 700;
  font-size: 14px;
  text-decoration: none;
  box-shadow: 0 6px 24px rgba(0, 0, 0, 0.25);
  backdrop-filter: blur(6px);
  opacity: 0;
  transform: translateY(12px);
  pointer-events: none;
  transition: opacity 0.25s var(--ease-out), transform 0.25s var(--ease-out);
}
.back-to-top.is-visible {
  opacity: 1;
  transform: translateY(0);
  pointer-events: auto;
}
.back-to-top:hover,
.back-to-top:focus-visible {
  background: rgba(255, 255, 255, 0.16);
  border-color: rgba(255, 255, 255, 0.35);
  outline: none;
}
@supports (padding: max(0px)) {
  .back-to-top {
    right: max(12px, env(safe-area-inset-right));
    bottom: max(12px, env(safe-area-inset-bottom));
  }
}
@media (prefers-reduced-motion: reduce) {
  .back-to-top {
    transition: none;
  }
}