/* ================================
   基本設定
================================ */

:root {
  --black: #050505;
  --black-soft: #0b0b0b;
  --black-card: #111111;

  --gold: #d4af37;
  --gold-light: #f3dc86;
  --gold-dark: #9d7417;

  --white: #f8f3e7;
  --gray: #b9b3a7;

  --line: rgba(212, 175, 55, 0.3);
}

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

html {
  scroll-behavior: smooth;
}

body {
  background:
    radial-gradient(
      circle at top right,
      rgba(212, 175, 55, 0.11),
      transparent 420px
    ),
    var(--black);

  color: var(--white);

  font-family:
    "Yu Mincho",
    "Hiragino Mincho ProN",
    serif;

  line-height: 1.9;
  overflow-x: hidden;
}

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

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

button {
  font: inherit;
}

/* ================================
   ローディング
================================ */

.loading {
  position: fixed;
  inset: 0;

  display: flex;
  justify-content: center;
  align-items: center;

  background: #000;
  z-index: 9999;

  transition:
    opacity 0.6s,
    visibility 0.6s;
}

.loading.hide {
  opacity: 0;
  visibility: hidden;
}

.loading-logo {
  color: var(--gold-light);
  font-size: clamp(22px, 4vw, 42px);
  letter-spacing: 0.25em;

  animation: loadingGlow 1.7s infinite;
}

@keyframes loadingGlow {
  0%,
  100% {
    opacity: 0.45;
  }

  50% {
    opacity: 1;
    text-shadow: 0 0 22px rgba(212, 175, 55, 0.6);
  }
}

/* ================================
   ヘッダー
================================ */

.header {
  position: fixed;
  top: 0;
  left: 0;

  width: 100%;
  height: 78px;

  display: flex;
  justify-content: space-between;
  align-items: center;

  padding: 10px 5%;

  background: rgba(0, 0, 0, 0.84);
  border-bottom: 1px solid var(--line);

  backdrop-filter: blur(14px);

  z-index: 1000;
}

.header-logo {
  display: flex;
  align-items: center;
}

.header-logo img {
  width: 150px;
  height: 58px;
  object-fit: contain;
}

.navigation {
  display: flex;
  align-items: center;
  gap: 26px;
}

.navigation a {
  position: relative;

  font-size: 12px;
  letter-spacing: 0.12em;

  transition: color 0.25s;
}

.navigation a::after {
  content: "";

  position: absolute;
  left: 0;
  bottom: -8px;

  width: 0;
  height: 1px;

  background: var(--gold);

  transition: width 0.3s;
}

.navigation a:hover {
  color: var(--gold-light);
}

.navigation a:hover::after {
  width: 100%;
}

.navigation-contact {
  padding: 10px 18px;
  border: 1px solid var(--gold);
  color: var(--gold-light);
}

.menu-button {
  display: none;

  width: 44px;
  height: 44px;

  border: none;
  background: transparent;

  cursor: pointer;
}

.menu-button span {
  display: block;

  width: 26px;
  height: 1px;

  margin: 7px auto;

  background: var(--gold-light);

  transition: 0.3s;
}

/* ================================
   共通
================================ */

.section {
  padding: 110px 7%;

  border-bottom:
    1px solid rgba(212, 175, 55, 0.17);
}

.section-title {
  max-width: 1180px;
  margin: 0 auto 55px;
}

.section-label {
  color: var(--gold);

  font-size: 11px;
  letter-spacing: 0.34em;
}

.section-title h2 {
  margin-top: 10px;

  font-size: clamp(34px, 5vw, 60px);
  font-weight: 500;

  line-height: 1.4;
  letter-spacing: 0.05em;
}

.button {
  min-width: 190px;

  display: inline-flex;
  justify-content: center;
  align-items: center;

  padding: 15px 26px;

  font-size: 13px;
  letter-spacing: 0.12em;

  transition:
    transform 0.25s,
    box-shadow 0.25s,
    background 0.25s;
}

.button:hover {
  transform: translateY(-3px);
}

.button-gold {
  color: #050505;

  background:
    linear-gradient(
      135deg,
      #ffe99d,
      #c49320
    );

  box-shadow:
    0 16px 40px rgba(212, 175, 55, 0.18);
}

.button-border {
  color: var(--gold-light);
  border: 1px solid var(--gold);
}

/* ================================
   ファーストビュー
================================ */

.hero {
  position: relative;

  min-height: 100svh;

  display: grid;
  grid-template-columns: 1.08fr 0.92fr;
  align-items: center;
  gap: 40px;

  padding:
    135px 8%
    80px;

  overflow: hidden;
}

.hero::before {
  content: "";

  position: absolute;
  inset: 0;

  background:
    linear-gradient(
      90deg,
      rgba(0, 0, 0, 0.98),
      rgba(0, 0, 0, 0.75),
      rgba(0, 0, 0, 0.15)
    );
}

.hero-light {
  position: absolute;

  right: -180px;
  top: 90px;

  width: 650px;
  height: 650px;

  border-radius: 50%;

  background:
    radial-gradient(
      circle,
      rgba(212, 175, 55, 0.25),
      transparent 68%
    );

  filter: blur(18px);
}

.hero-content,
.hero-logo {
  position: relative;
  z-index: 2;
}

.hero-subtitle {
  color: var(--gold);

  font-size: 12px;
  letter-spacing: 0.34em;
}

.hero h1 {
  margin-top: 20px;

  font-size: clamp(48px, 7vw, 104px);
  font-weight: 500;

  line-height: 1.25;
  letter-spacing: 0.05em;

  background:
    linear-gradient(
      135deg,
      #fff4b5,
      var(--gold),
      #fff1a0
    );

  -webkit-background-clip: text;
  color: transparent;
}

.hero-description {
  margin-top: 30px;

  color: #ddd6c8;

  font-size: clamp(15px, 1.5vw, 19px);
}

.hero-buttons {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;

  margin-top: 38px;
}

.hero-logo {
  display: flex;
  justify-content: center;
  align-items: center;
}

.hero-logo img {
  width: min(480px, 42vw);

  filter:
    drop-shadow(
      0 0 42px rgba(212, 175, 55, 0.18)
    );

  animation: logoGlow 4s ease-in-out infinite;
}

@keyframes logoGlow {
  0%,
  100% {
    opacity: 0.78;
    transform: scale(1);
  }

  50% {
    opacity: 1;
    transform: scale(1.025);
  }
}

.scroll-guide {
  position: absolute;
  right: 28px;
  bottom: 28px;
  z-index: 2;

  color: var(--gold-light);

  font-size: 10px;
  letter-spacing: 0.28em;

  writing-mode: vertical-rl;
}

/* ================================
   ABOUT
================================ */

.about {
  background: #070707;
}

.about-layout {
  max-width: 1180px;
  margin: 0 auto;

  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 70px;
}

.about-text h3 {
  margin-bottom: 28px;

  color: var(--gold-light);

  font-size: clamp(28px, 4vw, 46px);
  font-weight: 500;

  line-height: 1.5;
}

.about-text p {
  margin-bottom: 20px;
  color: var(--gray);
}

.mission-card {
  padding: 40px;

  border: 1px solid var(--line);

  background:
    linear-gradient(
      145deg,
      rgba(212, 175, 55, 0.09),
      rgba(255, 255, 255, 0.015)
    );
}

.mission-label {
  color: var(--gold);

  font-size: 11px;
  letter-spacing: 0.3em;
}

.mission-card h3 {
  margin-top: 18px;

  font-size: clamp(28px, 4vw, 44px);
  font-weight: 500;

  line-height: 1.55;
}

.mission-card p {
  margin-top: 22px;
  color: var(--gray);
}

/* ================================
   事業内容
================================ */

.business {
  background: #090909;
}

.business-grid {
  max-width: 1180px;
  margin: 0 auto;

  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 16px;
}

.business-card {
  min-height: 320px;

  padding: 30px 24px;

  border: 1px solid var(--line);

  background:
    linear-gradient(
      150deg,
      rgba(212, 175, 55, 0.09),
      transparent 55%
    ),
    var(--black-card);

  transition:
    transform 0.3s,
    border-color 0.3s;
}

.business-card:hover {
  transform: translateY(-8px);
  border-color: var(--gold);
}

.business-number {
  color: var(--gold);

  font-size: 30px;
  opacity: 0.65;
}

.business-card h3 {
  margin-top: 42px;
  margin-bottom: 18px;

  color: var(--gold-light);

  font-size: 19px;
  font-weight: 500;
}

.business-card p {
  color: var(--gray);
  font-size: 13px;
}

/* ================================
   コンサル
================================ */

.consulting {
  background:
    radial-gradient(
      circle at right,
      rgba(212, 175, 55, 0.11),
      transparent 500px
    ),
    #050505;
}

.consulting-content {
  max-width: 1080px;
  margin: 0 auto;
}

.consulting-content h2 {
  margin-top: 12px;

  font-size: clamp(42px, 7vw, 85px);
  font-weight: 500;

  line-height: 1.28;
}

.consulting-lead {
  margin-top: 28px;

  color: var(--gray);
  font-size: 17px;
}

.consulting-list {
  margin-top: 48px;

  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 14px;
}

.consulting-item {
  display: flex;
  align-items: center;
  gap: 20px;

  padding: 20px 22px;

  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.02);
}

.consulting-item span {
  color: var(--gold);
  font-size: 13px;
}

.consulting-item p {
  color: var(--gold-light);
}

.consulting-contact {
  margin-top: 48px;
  padding: 38px;

  text-align: center;

  border: 1px solid var(--line);

  background:
    linear-gradient(
      145deg,
      rgba(212, 175, 55, 0.08),
      rgba(255, 255, 255, 0.01)
    );
}

.consulting-contact p {
  color: var(--gray);
}

.contact-buttons {
  display: flex;
  justify-content: center;
  flex-wrap: wrap;
  gap: 14px;

  margin-top: 26px;
}

/* ================================
   BAR SUNSHINE
================================ */

.sunshine {
  background: #080808;
}

.sunshine-gallery {
  max-width: 1180px;
  margin: 0 auto;

  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

.sunshine-image {
  min-height: 330px;

  display: flex;
  justify-content: center;
  align-items: center;

  padding: 20px;

  border: 1px solid var(--line);
  background: #000;

  overflow: hidden;
}

.sunshine-image:nth-child(2),
.sunshine-image:nth-child(3) {
  background: #f5f5f5;
}

.sunshine-image img {
  width: 100%;
  height: 100%;

  object-fit: contain;

  transition: transform 0.6s;
}

.sunshine-image:hover img {
  transform: scale(1.04);
}

.sunshine-info {
  max-width: 980px;
  margin: 42px auto 0;
}

.sunshine-badge {
  display: inline-block;

  margin-right: 10px;
  margin-bottom: 20px;

  padding: 8px 14px;

  color: var(--gold-light);

  border: 1px solid var(--gold);

  font-size: 12px;
  letter-spacing: 0.12em;}
  .loading {
  display: none !important;
}
.message-image {
    display: flex;
    justify-content: center;
}

.message-image img {
    width: 260px;
    height: 260px;
    object-fit: cover;
    border-radius: 16px;
    border: 2px solid #d4af37;
}

@media (max-width: 768px) {
  .about-layout,
  .mission-layout {
    grid-template-columns: 1fr;
  }
  .business-grid {
    grid-template-columns: 1fr;
  }
  .hero h1 {
    font-size: 36px;
  }
  .sunshine-info {
    margin: 42px 0 0;
    width: 100%;
    text-align: left;
  }
  .sunshine-info h3 {
    width: 100% !important;
    margin-left: 0 !important;
    padding-left: 0 !important;
    text-align: left !important;
    position: static !important;
    transform: none in !important;
    margin-right: 0 !important;
  }
}