/* ========================================
   Webnect - Main Stylesheet
======================================== */

/* Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@300;400;500;700&family=Inter:wght@300;400;500;700&display=swap');

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

:root {
  --color-primary: #0891B2;
  --color-primary-dark: #0E7490;
  --color-primary-light: #E0F2FE;
  --color-text: #1F2937;
  --color-text-light: #6B7280;
  --color-bg: #FFFFFF;
  --color-bg-gray: #F9FAFB;
  --color-border: #E5E7EB;
  --font-main: 'Noto Sans JP', 'Inter', sans-serif;
  --max-width: 1100px;
  --radius: 8px;
  --shadow: 0 4px 24px rgba(0, 0, 0, 0.07);
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-main);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: 1.8;
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
}

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

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

ul {
  list-style: none;
}

/* ========================================
   Layout
======================================== */

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

section {
  padding: 80px 0;
}

/* ========================================
   Header
======================================== */

.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
}

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

.header__logo img {
  height: 40px;
  width: auto;
  display: block;
}

.header__logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.05em;
}

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

.nav__list {
  display: flex;
  gap: 32px;
  align-items: center;
}

.nav__list a {
  font-size: 14px;
  font-weight: 500;
  color: var(--color-text-light);
  transition: color 0.2s;
}

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

.nav__cta {
  background: var(--color-primary);
  color: #fff !important;
  padding: 8px 20px;
  border-radius: 100px;
  transition: background 0.2s !important;
}

.nav__cta:hover {
  background: var(--color-primary-dark) !important;
  color: #fff !important;
}

/* ========================================
   Hero
======================================== */

.hero {
  padding: 112px 0 72px;
  background: linear-gradient(135deg, #F0F9FF 0%, #FFFFFF 60%);
}

.hero__inner {
  display: grid;
  grid-template-columns: 1fr 1.3fr;
  gap: 60px;
  align-items: flex-start;
}

.hero__label {
  display: inline-block;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 16px;
}

.hero__title {
  font-size: clamp(28px, 4vw, 44px);
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 24px;
  color: var(--color-text);
}

.hero__title em {
  font-style: normal;
  color: var(--color-primary);
}

.hero__desc {
  font-size: 16px;
  color: var(--color-text-light);
  margin-bottom: 36px;
  line-height: 1.9;
}

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

.hero__image {
  position: relative;
}

.hero__image-box {
  background: linear-gradient(135deg, var(--color-primary-light), #E0F2FE);
  border-radius: 16px;
  aspect-ratio: 4/3;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}

.hero__image-icon {
  font-size: 80px;
  opacity: 0.4;
}

/* ========================================
   Buttons
======================================== */

.btn {
  display: inline-flex;
  align-items: center;
  gap: 8px;
  padding: 14px 28px;
  border-radius: 100px;
  font-size: 15px;
  font-weight: 700;
  transition: all 0.2s;
  cursor: pointer;
  border: none;
}

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

.btn--primary:hover {
  background: var(--color-primary-dark);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(8, 145, 178, 0.3);
}

.btn--outline {
  background: transparent;
  color: var(--color-primary);
  border: 2px solid var(--color-primary);
}

.btn--outline:hover {
  background: var(--color-primary-light);
  transform: translateY(-2px);
}

/* ========================================
   Section Header
======================================== */

.section-header {
  margin-bottom: 56px;
}

.section-label {
  display: block;
  font-size: 12px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.15em;
  text-transform: uppercase;
  margin-bottom: 12px;
  text-align: center;
}

.section-title {
  font-size: clamp(24px, 3vw, 36px);
  font-weight: 700;
  line-height: 1.4;
  margin-bottom: 16px;
  text-align: center;
}

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

/* ========================================
   Features（強み）
======================================== */

.features {
  background: var(--color-bg-gray);
}

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

.feature-card {
  background: #fff;
  border-radius: var(--radius);
  padding: 36px 28px;
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}

.feature-card:hover {
  transform: translateY(-4px);
}

.feature-card__icon {
  width: 52px;
  height: 52px;
  background: var(--color-primary-light);
  border-radius: 12px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 20px;
  font-size: 22px;
  color: var(--color-primary);
}

.feature-card__title {
  font-size: 17px;
  font-weight: 700;
  margin-bottom: 10px;
}

.feature-card__desc {
  font-size: 14px;
  color: var(--color-text-light);
  line-height: 1.8;
}

/* ========================================
   Services
======================================== */

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

.service-card {
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 36px 28px;
  transition: all 0.2s;
  position: relative;
  overflow: hidden;
}

.service-card::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: var(--color-primary);
  transform: scaleX(0);
  transition: transform 0.2s;
}

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

.service-card:hover {
  box-shadow: var(--shadow);
  transform: translateY(-4px);
}

.service-card--featured {
  border-color: var(--color-primary);
  background: var(--color-primary-light);
}

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

.service-card__badge {
  display: inline-block;
  font-size: 11px;
  font-weight: 700;
  color: #fff;
  background: var(--color-primary);
  padding: 3px 10px;
  border-radius: 100px;
  margin-bottom: 16px;
}

.service-card__name {
  font-size: 18px;
  font-weight: 700;
  margin-bottom: 8px;
}

.service-card__price {
  font-size: 24px;
  font-weight: 700;
  color: var(--color-primary);
  margin-bottom: 20px;
}

.service-card__price span {
  font-size: 14px;
  color: var(--color-text-light);
  font-weight: 400;
}

.service-card__list {
  display: flex;
  flex-direction: column;
  gap: 10px;
  margin-bottom: 28px;
}

.service-card__list li {
  font-size: 14px;
  color: var(--color-text-light);
  display: flex;
  align-items: flex-start;
  gap: 8px;
}

.service-card__list li::before {
  content: '✓';
  color: var(--color-primary);
  font-weight: 700;
  flex-shrink: 0;
}

/* ========================================
   Works
======================================== */

.works {
  background: var(--color-bg-gray);
}

.works__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 24px;
  margin-bottom: 40px;
}

.work-card {
  background: #fff;
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  transition: transform 0.2s;
}

.work-card:hover {
  transform: translateY(-4px);
}

.work-card__image {
  aspect-ratio: 16/9;
  background: linear-gradient(135deg, var(--color-primary-light), #BFDBFE);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 48px;
  color: var(--color-primary);
}

.work-card__body {
  padding: 24px;
}

.work-card__tag {
  font-size: 11px;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  margin-bottom: 8px;
}

.work-card__title {
  font-size: 16px;
  font-weight: 700;
  margin-bottom: 8px;
}

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

.works__cta {
  text-align: center;
}

/* ========================================
   CTA Section
======================================== */

.cta-section {
  background: linear-gradient(135deg, var(--color-primary), var(--color-primary-dark));
  color: #fff;
  text-align: center;
  padding: 80px 0;
}

.cta-section .section-title {
  color: #fff;
}

.cta-section .section-desc {
  color: rgba(255, 255, 255, 0.8);
}

.btn--white {
  background: #fff;
  color: var(--color-primary);
}

.btn--white:hover {
  background: rgba(255, 255, 255, 0.9);
  transform: translateY(-2px);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.15);
}

.btn--white-outline {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.6);
}

.btn--white-outline:hover {
  background: rgba(255, 255, 255, 0.1);
  transform: translateY(-2px);
}

/* ========================================
   Footer
======================================== */

.footer {
  background: #F0F9FF;
  color: var(--color-text-light);
  padding: 48px 0 32px;
  border-top: 1px solid var(--color-border);
}

.footer__inner {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  margin-bottom: 40px;
}

.footer__logo-link {
  display: flex;
  align-items: center;
  gap: 10px;
  margin-bottom: 12px;
  text-decoration: none;
}

.footer__logo-link img {
  height: 40px;
  width: auto;
  display: block;
}

.footer__logo-text {
  font-size: 20px;
  font-weight: 700;
  color: var(--color-text);
  letter-spacing: 0.05em;
}

.footer__tagline {
  font-size: 13px;
  line-height: 1.7;
}

.footer__nav {
  display: flex;
  gap: 48px;
}

.footer__nav-group h4 {
  font-size: 13px;
  font-weight: 700;
  color: var(--color-text);
  margin-bottom: 16px;
  letter-spacing: 0.05em;
}

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

.footer__nav-group ul a {
  font-size: 13px;
  color: var(--color-text-light);
  transition: color 0.2s;
}

.footer__nav-group ul a:hover {
  color: var(--color-primary);
}

.footer__sns {
  display: flex;
  gap: 16px;
  margin-top: 20px;
}

.footer__sns-link {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 50%;
  background: #fff;
  color: var(--color-primary);
  font-size: 16px;
  transition: background 0.2s;
  border: 1px solid var(--color-border);
}

.footer__sns-link:hover {
  background: #0891B2;
  color: #fff;
}

.footer__bottom {
  border-top: 1px solid var(--color-border);
  padding-top: 24px;
  text-align: center;
  font-size: 12px;
}

/* ========================================
   Fade-in Animation
======================================== */

.fade-in {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.visible {
  opacity: 1;
  transform: translateY(0);
}

/* ========================================
   Hamburger Menu
======================================== */

.hamburger {
  display: none;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 40px;
  height: 40px;
  background: none;
  border: none;
  cursor: pointer;
  padding: 4px;
  z-index: 200;
  margin-left: auto;
}

.hamburger__line {
  display: block;
  width: 24px;
  height: 2px;
  background: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.hamburger.is-open .hamburger__line:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.hamburger.is-open .hamburger__line:nth-child(2) {
  opacity: 0;
}

.hamburger.is-open .hamburger__line:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

.mobile-nav {
  display: none;
  position: fixed;
  top: 64px;
  left: 0;
  right: 0;
  background: #fff;
  border-bottom: 1px solid var(--color-border);
  padding: 16px 24px 24px;
  z-index: 99;
  box-shadow: 0 8px 24px rgba(0,0,0,0.08);
}

.mobile-nav.is-open {
  display: block;
}

.mobile-nav__list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.mobile-nav__list a {
  display: block;
  padding: 14px 0;
  font-size: 15px;
  font-weight: 500;
  color: var(--color-text);
  border-bottom: 1px solid var(--color-border);
  transition: color 0.2s;
}

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

.mobile-nav__list li:last-child a {
  border-bottom: none;
  margin-top: 8px;
  background: var(--color-primary);
  color: #fff;
  text-align: center;
  border-radius: 100px;
  padding: 14px;
}

/* ========================================
   Responsive
======================================== */

@media (max-width: 768px) {
  section {
    padding: 60px 0;
  }

  .section-desc {
    margin-left: 0;
  }

  .hero {
    padding: 88px 0 48px;
  }

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

  .hero__image {
    display: block;
  }

  .nav__list {
    display: none;
  }

  .hamburger {
    display: flex;
  }

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

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

  .footer__inner {
    flex-direction: column;
    gap: 40px;
  }

  .footer__nav {
    flex-direction: column;
    gap: 32px;
  }
}