/* ===== Reset & Base ===== */
*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

:root {
  --color-primary: #7c3aed;
  --color-primary-dark: #5b21b6;
  --color-accent: #ffd200;
  --color-accent-dark: #f7971e;
  --color-bg: #0f0c29;
  --color-bg-section: #f8f7ff;
  --color-text: #1a1a2e;
  --color-text-light: #6b7280;
  --color-white: #ffffff;
  --font-main: 'Noto Sans JP', 'Hiragino Sans', 'Yu Gothic UI', sans-serif;
  --max-width: 1140px;
  --radius: 12px;
  --transition: 0.3s ease;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-white);
  line-height: 1.7;
  font-size: 16px;
}

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

ul {
  list-style: none;
}

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

/* ===== Utility ===== */
.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
}

.section-label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 0.15em;
  text-transform: uppercase;
  color: var(--color-primary);
  background: #ede9fe;
  padding: 4px 14px;
  border-radius: 20px;
  margin-bottom: 16px;
}

.section-title {
  font-size: clamp(26px, 3.5vw, 40px);
  font-weight: 800;
  line-height: 1.3;
  margin-bottom: 16px;
}

.section-desc {
  font-size: 15px;
  color: var(--color-text-light);
  max-width: 560px;
  margin: 0 auto 60px;
}

/* ===== Header / Navigation ===== */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(15, 12, 41, 0.92);
  backdrop-filter: blur(10px);
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 72px;
}

.header__logo {
  display: flex;
  align-items: center;
  gap: 10px;
}

.logo-icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  background: linear-gradient(135deg, var(--color-accent-dark), var(--color-accent));
  border-radius: 8px;
}

.logo-icon svg {
  width: 20px;
  height: 20px;
  fill: #1a1a2e;
}

.logo-text {
  font-size: 16px;
  font-weight: 800;
  color: var(--color-white);
  letter-spacing: 0.02em;
}

.logo-text span {
  color: var(--color-accent);
}

.nav__list {
  display: flex;
  align-items: center;
  gap: 36px;
}

.nav__list a {
  font-size: 14px;
  font-weight: 500;
  color: rgba(255, 255, 255, 0.75);
  transition: color var(--transition);
  position: relative;
}

.nav__list a::after {
  content: '';
  position: absolute;
  bottom: -4px;
  left: 0;
  width: 0;
  height: 2px;
  background: var(--color-accent);
  border-radius: 2px;
  transition: width var(--transition);
}

.nav__list a:hover {
  color: var(--color-white);
}

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

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 10px 24px;
  border-radius: 50px;
  font-size: 14px;
  font-weight: 700;
  cursor: pointer;
  transition: all var(--transition);
  border: none;
}

.btn--primary {
  background: linear-gradient(135deg, var(--color-accent-dark), var(--color-accent));
  color: var(--color-text);
}

.btn--primary:hover {
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(247, 151, 30, 0.4);
}

.btn--outline {
  background: transparent;
  color: var(--color-white);
  border: 1.5px solid rgba(255, 255, 255, 0.4);
}

.btn--outline:hover {
  background: rgba(255, 255, 255, 0.1);
  border-color: var(--color-white);
}

.btn--large {
  padding: 16px 40px;
  font-size: 16px;
}

/* ===== Hero Section ===== */
.hero {
  position: relative;
  min-height: 100vh;
  display: flex;
  align-items: center;
  background: linear-gradient(135deg, #0f0c29 0%, #302b63 50%, #24243e 100%);
  overflow: hidden;
  padding-top: 72px;
}

.hero__bg-shapes {
  position: absolute;
  inset: 0;
  pointer-events: none;
}

.hero__bg-shapes::before {
  content: '';
  position: absolute;
  top: -200px;
  right: -200px;
  width: 600px;
  height: 600px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(124, 58, 237, 0.25) 0%, transparent 70%);
}

.hero__bg-shapes::after {
  content: '';
  position: absolute;
  bottom: -100px;
  left: -100px;
  width: 400px;
  height: 400px;
  border-radius: 50%;
  background: radial-gradient(circle, rgba(247, 151, 30, 0.15) 0%, transparent 70%);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 60px;
  align-items: center;
  padding: 80px 0;
}

.hero__label {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.15);
  padding: 6px 16px;
  border-radius: 20px;
  font-size: 13px;
  color: var(--color-accent);
  font-weight: 600;
  margin-bottom: 24px;
}

.hero__label::before {
  content: '';
  width: 7px;
  height: 7px;
  background: var(--color-accent);
  border-radius: 50%;
  animation: pulse 2s infinite;
}

@keyframes pulse {
  0%, 100% { opacity: 1; transform: scale(1); }
  50% { opacity: 0.5; transform: scale(1.3); }
}

.hero__title {
  font-size: clamp(36px, 5vw, 62px);
  font-weight: 900;
  line-height: 1.2;
  color: var(--color-white);
  margin-bottom: 20px;
  letter-spacing: -0.02em;
}

.hero__title em {
  font-style: normal;
  background: linear-gradient(135deg, var(--color-accent-dark), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.hero__desc {
  font-size: 16px;
  color: rgba(255, 255, 255, 0.65);
  margin-bottom: 40px;
  line-height: 1.8;
}

.hero__actions {
  display: flex;
  gap: 16px;
  flex-wrap: wrap;
}

.hero__image {
  position: relative;
}

.hero__image img {
  width: 100%;
  border-radius: 20px;
  box-shadow: 0 40px 80px rgba(0, 0, 0, 0.5);
}

.hero__image-badge {
  position: absolute;
  bottom: -20px;
  left: -20px;
  background: var(--color-white);
  border-radius: var(--radius);
  padding: 14px 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  box-shadow: 0 20px 40px rgba(0, 0, 0, 0.2);
}

.badge-icon {
  width: 44px;
  height: 44px;
  background: linear-gradient(135deg, var(--color-primary), #a855f7);
  border-radius: 10px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
}

.badge-text strong {
  display: block;
  font-size: 18px;
  font-weight: 800;
  color: var(--color-text);
}

.badge-text span {
  font-size: 12px;
  color: var(--color-text-light);
}

/* ===== Stats Section ===== */
.stats {
  background: var(--color-bg);
  padding: 60px 0;
}

.stats__inner {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2px;
  border-radius: var(--radius);
  overflow: hidden;
}

.stat-item {
  background: rgba(255, 255, 255, 0.05);
  padding: 40px 24px;
  text-align: center;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  transition: background var(--transition);
}

.stat-item:last-child {
  border-right: none;
}

.stat-item:hover {
  background: rgba(124, 58, 237, 0.15);
}

.stat-number {
  font-size: 48px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--color-accent-dark), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 8px;
}

.stat-unit {
  font-size: 24px;
}

.stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  letter-spacing: 0.05em;
}

/* ===== Services Section ===== */
.services {
  padding: 100px 0;
  background: var(--color-bg-section);
}

.services__header {
  text-align: center;
  margin-bottom: 60px;
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 28px;
}

.service-card {
  background: var(--color-white);
  border-radius: 20px;
  padding: 40px 32px;
  border: 1px solid #ede9fe;
  transition: all var(--transition);
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--color-primary), #a855f7);
  transform: scaleX(0);
  transition: transform var(--transition);
}

.service-card:hover {
  transform: translateY(-6px);
  box-shadow: 0 24px 48px rgba(124, 58, 237, 0.12);
  border-color: #c4b5fd;
}

.service-card:hover::before {
  transform: scaleX(1);
}

.service-icon {
  width: 60px;
  height: 60px;
  border-radius: 16px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 28px;
  margin-bottom: 24px;
}

.service-icon--purple { background: #ede9fe; }
.service-icon--blue   { background: #dbeafe; }
.service-icon--green  { background: #d1fae5; }

.service-card h3 {
  font-size: 20px;
  font-weight: 700;
  margin-bottom: 12px;
}

.service-card p {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.8;
}

.service-features {
  margin-top: 20px;
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.service-features li {
  font-size: 13px;
  color: var(--color-text-light);
  display: flex;
  align-items: center;
  gap: 8px;
}

.service-features li::before {
  content: '';
  width: 6px;
  height: 6px;
  background: var(--color-primary);
  border-radius: 50%;
  flex-shrink: 0;
}

/* ===== Works Section ===== */
.works {
  padding: 100px 0;
  background: var(--color-white);
}

.works__header {
  text-align: center;
  margin-bottom: 60px;
}

.works__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 24px;
}

.work-card {
  border-radius: 16px;
  overflow: hidden;
  border: 1px solid #f0ebff;
  transition: all var(--transition);
}

.work-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(124, 58, 237, 0.1);
}

.work-thumb {
  aspect-ratio: 16 / 10;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 52px;
}

.work-thumb--app1  { background: linear-gradient(135deg, #667eea, #764ba2); }
.work-thumb--app2  { background: linear-gradient(135deg, #f093fb, #f5576c); }
.work-thumb--app3  { background: linear-gradient(135deg, #4facfe, #00f2fe); }

.work-info {
  padding: 20px 24px;
}

.work-tag {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-primary);
  background: #ede9fe;
  padding: 3px 10px;
  border-radius: 20px;
  letter-spacing: 0.05em;
  display: inline-block;
  margin-bottom: 8px;
}

.work-info h3 {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 6px;
}

.work-info p {
  font-size: 13px;
  color: var(--color-text-light);
}

/* ===== About Section ===== */
.about {
  padding: 100px 0;
  background: linear-gradient(135deg, #0f0c29 0%, #302b63 100%);
}

.about__inner {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 80px;
  align-items: center;
}

.about__label {
  background: rgba(255, 220, 0, 0.15);
  color: var(--color-accent);
}

.about__title {
  color: var(--color-white);
}

.about__desc {
  color: rgba(255, 255, 255, 0.65);
  font-size: 15px;
  line-height: 1.9;
  margin-bottom: 40px;
  max-width: none;
}

.about__values {
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.value-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 20px;
  background: rgba(255, 255, 255, 0.05);
  border-radius: var(--radius);
  border: 1px solid rgba(255, 255, 255, 0.08);
  transition: background var(--transition);
}

.value-item:hover {
  background: rgba(124, 58, 237, 0.2);
}

.value-icon {
  font-size: 28px;
  width: 52px;
  height: 52px;
  background: rgba(255, 255, 255, 0.08);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  flex-shrink: 0;
}

.value-content h4 {
  font-size: 15px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 4px;
}

.value-content p {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
}

.about__visual {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.about-stat-card {
  background: rgba(255, 255, 255, 0.06);
  border: 1px solid rgba(255, 255, 255, 0.1);
  border-radius: 16px;
  padding: 28px 20px;
  text-align: center;
  transition: all var(--transition);
}

.about-stat-card:hover {
  background: rgba(124, 58, 237, 0.2);
  transform: translateY(-4px);
}

.about-stat-card:first-child {
  grid-column: 1 / -1;
  background: linear-gradient(135deg, rgba(124, 58, 237, 0.3), rgba(168, 85, 247, 0.3));
}

.about-stat-num {
  font-size: 40px;
  font-weight: 900;
  background: linear-gradient(135deg, var(--color-accent-dark), var(--color-accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  line-height: 1;
  margin-bottom: 6px;
}

.about-stat-label {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.6);
}

/* ===== Contact Section ===== */
.contact {
  padding: 100px 0;
  background: var(--color-bg-section);
}

.contact__header {
  text-align: center;
  margin-bottom: 60px;
}

.contact__inner {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 60px;
  align-items: start;
}

.contact-info {
  display: flex;
  flex-direction: column;
  gap: 20px;
}

.contact-info-item {
  display: flex;
  align-items: flex-start;
  gap: 16px;
  padding: 24px;
  background: var(--color-white);
  border-radius: var(--radius);
  border: 1px solid #ede9fe;
}

.contact-info-icon {
  width: 48px;
  height: 48px;
  background: linear-gradient(135deg, var(--color-primary), #a855f7);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 22px;
  flex-shrink: 0;
}

.contact-info-text strong {
  display: block;
  font-size: 14px;
  font-weight: 700;
  margin-bottom: 4px;
}

.contact-info-text span {
  font-size: 14px;
  color: var(--color-text-light);
}

.contact-form {
  background: var(--color-white);
  border-radius: 20px;
  padding: 40px;
  border: 1px solid #ede9fe;
  box-shadow: 0 10px 40px rgba(124, 58, 237, 0.06);
}

.form-group {
  margin-bottom: 20px;
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
}

.form-group label {
  display: block;
  font-size: 13px;
  font-weight: 600;
  margin-bottom: 6px;
  color: var(--color-text);
}

.form-group label span {
  color: #ef4444;
  margin-left: 2px;
}

.form-group input,
.form-group select,
.form-group textarea {
  width: 100%;
  padding: 12px 16px;
  border: 1.5px solid #e5e7eb;
  border-radius: 10px;
  font-size: 14px;
  font-family: var(--font-main);
  color: var(--color-text);
  background: #fafafa;
  transition: all var(--transition);
  outline: none;
}

.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus {
  border-color: var(--color-primary);
  background: var(--color-white);
  box-shadow: 0 0 0 3px rgba(124, 58, 237, 0.1);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-submit {
  width: 100%;
  justify-content: center;
  padding: 16px;
  font-size: 15px;
  border-radius: 12px;
}

/* ===== Footer ===== */
.footer {
  background: var(--color-bg);
  color: rgba(255, 255, 255, 0.6);
  padding: 60px 0 0;
}

.footer__inner {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr;
  gap: 60px;
  padding-bottom: 48px;
  border-bottom: 1px solid rgba(255, 255, 255, 0.08);
}

.footer-brand p {
  font-size: 14px;
  color: rgba(255, 255, 255, 0.45);
  margin-top: 16px;
  line-height: 1.8;
  max-width: 300px;
}

.footer__nav-title {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-white);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

.footer__nav-list {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.footer__nav-list a {
  font-size: 13px;
  color: rgba(255, 255, 255, 0.5);
  transition: color var(--transition);
}

.footer__nav-list a:hover {
  color: var(--color-accent);
}

.footer__bottom {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 20px 0;
}

.footer__copyright {
  font-size: 12px;
  color: rgba(255, 255, 255, 0.3);
}

/* ===== Responsive ===== */
@media (max-width: 1024px) {
  .services__grid,
  .works__grid {
    grid-template-columns: repeat(2, 1fr);
  }

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

  .stat-item:nth-child(2) {
    border-right: none;
  }

  .stat-item:nth-child(3) {
    border-top: 1px solid rgba(255, 255, 255, 0.08);
  }
}

@media (max-width: 768px) {
  .nav__list,
  .header__cta {
    display: none;
  }

  .hero__inner {
    grid-template-columns: 1fr;
    text-align: center;
    gap: 40px;
  }

  .hero__actions {
    justify-content: center;
  }

  .hero__image {
    order: -1;
  }

  .hero__image-badge {
    left: 50%;
    transform: translateX(-50%);
  }

  .about__inner,
  .contact__inner {
    grid-template-columns: 1fr;
  }

  .about__visual {
    order: -1;
  }

  .services__grid,
  .works__grid {
    grid-template-columns: 1fr;
  }

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

  .footer__inner {
    grid-template-columns: 1fr;
    gap: 32px;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer__bottom {
    flex-direction: column;
    gap: 8px;
    text-align: center;
  }
}