:root {
  font-family: Inter, system-ui, Avenir, Helvetica, Arial, sans-serif;
  line-height: 1.5;
  font-weight: 400;

  color-scheme: light dark;
  color: rgba(255, 255, 255, 0.87);
  background-color: #242424;

  font-synthesis: none;
  text-rendering: optimizeLegibility;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  -webkit-text-size-adjust: 100%;
}

a {
  font-weight: 500;
  color: #646cff;
  text-decoration: inherit;
}
a:hover {
  color: #535bf2;
}

body {
  margin: 0;
  min-width: 320px;
  min-height: 100vh;
}

h1 {
  font-size: 3.2em;
  line-height: 1.1;
}

button {
  border-radius: 8px;
  border: 1px solid transparent;
  padding: 0.6em 1.2em;
  font-size: 1em;
  font-weight: 500;
  font-family: inherit;
  background-color: #1a1a1a;
  cursor: pointer;
  transition: border-color 0.25s;
}
button:hover {
  border-color: #646cff;
}
button:focus,
button:focus-visible {
  outline: 4px auto -webkit-focus-ring-color;
}

@media (prefers-color-scheme: light) {
  :root {
    color: #213547;
    background-color: #ffffff;
  }
  a:hover {
    color: #747bff;
  }
  button {
    background-color: #f9f9f9;
  }
}
/* リセットとベーススタイル */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

.app {
  min-height: 100vh;
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  color: #333;
  line-height: 1.6;
  display: flex;
  flex-direction: column;
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
  width: 100%;
}

/* ヘッダー - 画面全幅 */
.header {
  background: linear-gradient(135deg, #667eea 0%, #ff0000 100%);
  color: white;
  padding: 1rem 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
  width: 100%;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo h1 {
  font-size: 2rem;
  font-weight: bold;
  margin: 0 0 0.2rem 0;
}

.logo-image {
  height: 60px;
  width: auto;
  margin-bottom: 0.0rem;
}


/* メインコンテンツ - センタリング */
.main {
  flex: 1;
  padding: 3rem 0;
  width: 100%;
  display: flex;
  justify-content: center;
}

/* ヒーローセクション */
.hero {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 3rem;
  align-items: center;
  margin-bottom: 4rem;
  min-height: 400px;
}

.hero-title {
  font-size: 2.5rem;
  color: #2d3748;
  margin-bottom: 1rem;
  font-weight: 700;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: #4a5568;
  margin-bottom: 2rem;
  line-height: 1.8;
}


.hero-image {
  display: flex;
  justify-content: center;
  align-items: center;
  width: 100%;
  height: 100%;
}

.hero-image img {
  width: 100%;
  height: auto;
  max-height: 400px;
  object-fit: cover;
  border-radius: 30px;
  box-shadow: 0 10px 30px rgba(0, 0, 0, 0.1);
}

.tech-icons {
  display: flex;
  gap: 2rem;
  flex-wrap: wrap;
  justify-content: center;
}

.tech-icon {
  font-size: 4rem;
  background: linear-gradient(135deg, #f093fb 0%, #f5576c 100%);
  padding: 2rem;
  border-radius: 20px;
  box-shadow: 0 10px 30px rgba(240, 147, 251, 0.3);
  animation: float 3s ease-in-out infinite;
}

.tech-icon:nth-child(2) {
  animation-delay: 1s;
}

.tech-icon:nth-child(3) {
  animation-delay: 2s;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-10px); }
}

/* サービスセクション */
.services {
  margin-bottom: 4rem;
}

.services h3 {
  text-align: center;
  font-size: 2rem;
  color: #2d3748;
  margin-bottom: 3rem;
}

.services-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.service-card {
  background: white;
  padding: 10px;
  border-radius: 15px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.08);
  text-align: center;
  transition: transform 0.3s ease;
}

.service-card:hover {
  transform: translateY(-5px);
}

.service-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
}

.service-card h4 {
  font-size: 1.3rem;
  color: #2d3748;
  margin-bottom: 1rem;
}

.service-card p {
  color: #4a5568;
  line-height: 1.6;
}

/* お知らせセクション */
.notice {
  background: #f7fafc;
  padding: 2rem;
  border-radius: 15px;
  margin-bottom: 3rem;
}

.notice h3 {
  color: #2d3748;
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

.notice-content p {
  margin-bottom: 0.8rem;
  color: #4a5568;
}

.notice-content strong {
  color: #2d3748;
}

/* フッター - 画面全幅 */
.footer {
  background: #2d3748;
  color: white;
  padding: 2rem 0 1rem;
  width: 100%;
  margin-top: auto;
}

.footer-content {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
  gap: 2rem;
  margin-bottom: 2rem;
}

.footer-section h4 {
  margin-bottom: 1rem;
  color: #e2e8f0;
}

.footer-section p {
  color: #a0aec0;
  line-height: 1.6;
}

.footer-bottom {
  border-top: 1px solid #4a5568;
  padding-top: 1rem;
  text-align: center;
  color: #a0aec0;
}

/* レスポンシブデザイン */
@media (max-width: 768px) {
  .hero {
    grid-template-columns: 1fr;
    text-align: center;
  }
  
  .hero-title {
    font-size: 2rem;
  }
  
  .tech-icons {
    gap: 1rem;
  }
  
  .tech-icon {
    font-size: 3rem;
    padding: 1.5rem;
  }
  
  .services-grid {
    grid-template-columns: 1fr;
  }
  
  .header-content {
    flex-direction: column;
    gap: 1rem;
  }
  
  .main {
    padding: 2rem 0;
  }
}.login-overlay {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: rgba(0, 0, 0, 0.5);
  display: flex;
  justify-content: center;
  align-items: center;
  z-index: 1000;
  backdrop-filter: blur(5px);
}

.login-dialog {
  background: white;
  border-radius: 20px;
  padding: 0;
  width: 100%;
  max-width: 400px;
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.3);
  overflow: hidden;
  animation: slideIn 0.3s ease-out;
}

@keyframes slideIn {
  from {
    opacity: 0;
    transform: translateY(-20px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.login-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 1.5rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.login-header h3 {
  margin: 0;
  font-size: 1.3rem;
  font-weight: 600;
}

.close-button {
  background: none;
  border: none;
  color: white;
  font-size: 1.5rem;
  cursor: pointer;
  padding: 0.2rem 0.5rem;
  border-radius: 50%;
  transition: background 0.3s ease;
}

.close-button:hover {
  background: rgba(255, 255, 255, 0.2);
}

.login-form {
  padding: 2rem;
}

.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  color: #2d3748;
  font-weight: 500;
}

.form-group input {
  width: 100%;
  padding: 0.8rem 1rem;
  border: 2px solid #e2e8f0;
  border-radius: 10px;
  font-size: 1rem;
  transition: border-color 0.3s ease;
  box-sizing: border-box;
}

.form-group input:focus {
  outline: none;
  border-color: #667eea;
  box-shadow: 0 0 0 3px rgba(102, 126, 234, 0.1);
}

.error-message {
  background: #fed7d7;
  color: #c53030;
  padding: 0.8rem 1rem;
  border-radius: 8px;
  margin-bottom: 1rem;
  font-size: 0.9rem;
}

.form-actions {
  margin-bottom: 1rem;
}

.submit-button {
  width: 100%;
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  padding: 0.9rem;
  font-size: 1rem;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
}

.submit-button:hover:not(:disabled) {
  transform: translateY(-1px);
  box-shadow: 0 5px 15px rgba(102, 126, 234, 0.4);
}

.submit-button:disabled {
  opacity: 0.7;
  cursor: not-allowed;
}

.login-footer {
  background: #f7fafc;
  padding: 1.5rem 2rem;
  text-align: center;
}

.login-footer p {
  color: #4a5568;
  font-size: 0.9rem;
  margin: 0;
  line-height: 1.5;
}

/* レスポンシブ */
@media (max-width: 480px) {
  .login-dialog {
    margin: 1rem;
    max-width: none;
  }
  
  .login-form {
    padding: 1.5rem;
  }
  
  .login-header {
    padding: 1rem 1.5rem;
  }
}
.dashboard {
  min-height: 100vh;
  background: #f7fafc;
}

.dashboard-header {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  padding: 1rem 0;
  box-shadow: 0 2px 10px rgba(0,0,0,0.1);
}

.container {
  max-width: 1200px;
  margin: 0 auto;
  padding: 0 20px;
}

.header-content {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo h1 {
  font-size: 2rem;
  font-weight: bold;
  margin-bottom: 0.2rem;
  margin: 0;
}

.logo span {
  font-size: 0.9rem;
  opacity: 0.9;
}

.dashboard-main {
  padding: 2rem 0;
}

.dashboard-main h2 {
  color: #2d3748;
  margin-bottom: 2rem;
  font-size: 2rem;
}

.user-info {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.logout-button {
  background: rgba(255,255,255,0.2);
  color: white;
  border: 1px solid rgba(255,255,255,0.3);
  padding: 0.5rem 1rem;
  border-radius: 20px;
  cursor: pointer;
  transition: all 0.3s ease;
}

.logout-button:hover {
  background: rgba(255,255,255,0.3);
}

.dashboard-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 2rem;
}

.dashboard-card {
  background: white;
  padding: 2rem;
  border-radius: 15px;
  box-shadow: 0 5px 20px rgba(0,0,0,0.08);
  transition: transform 0.3s ease;
}

.dashboard-card:hover {
  transform: translateY(-5px);
}

.dashboard-card h3 {
  color: #2d3748;
  margin-bottom: 1rem;
}

.dashboard-card p {
  color: #4a5568;
  margin-bottom: 1.5rem;
  line-height: 1.6;
}

.card-button {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  padding: 0.7rem 1.5rem;
  border-radius: 10px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s ease;
}

.card-button:hover {
  transform: translateY(-1px);
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

/* レスポンシブ */
@media (max-width: 768px) {
  .header-content {
    flex-direction: column;
    gap: 1rem;
  }
  
  .dashboard-grid {
    grid-template-columns: 1fr;
  }
}
.login-button {
  background: rgba(255,255,255,0.2);
  color: white;
  border: 2px solid rgba(255,255,255,0.3);
  padding: 0.7rem 1.5rem;
  border-radius: 25px;
  cursor: pointer;
  font-weight: 500;
  transition: all 0.3s ease;
}

.login-button:hover {
  background: rgba(255,255,255,0.3);
  border-color: rgba(255,255,255,0.5);
  transform: translateY(-1px);
}

.cta-button {
  background: linear-gradient(135deg, #667eea 0%, #764ba2 100%);
  color: white;
  border: none;
  padding: 1rem 2rem;
  font-size: 1.1rem;
  border-radius: 30px;
  cursor: pointer;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 4px 15px rgba(102, 126, 234, 0.3);
}

.cta-button:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 20px rgba(102, 126, 234, 0.4);
}