/* CSS Variables for Theme */
:root {
  --primary-color: #cc99ff;
  --secondary-color: #b8b8dc;
  --accent-color: #9370db;
  --text-color: #333333;
  --bg-color: #ffffff;
  --card-bg: #fafafa;
  --shadow: rgba(0, 0, 0, 0.1);
  --gradient-1: linear-gradient(135deg, #cc99ff 0%, #d8bfd8 50%, #dda0dd 100%);
  --gradient-2: linear-gradient(120deg, #ffd1dc 0%, #cc99ff 50%, #b0c4de 100%);
  --gradient-3: linear-gradient(45deg, #e0e0ff 0%, #dfbfff 100%);
  --nav-bg: rgba(255, 255, 255, 0.95);
  --overlay-bg: rgba(230, 230, 250, 0.9);
}

[data-theme="dark"] {
  --primary-color: #6a5acd;
  --secondary-color: #483d8b;
  --accent-color: #9370db;
  --text-color: #e0e0e0;
  --bg-color: #1a1a2e;
  --card-bg: #25274d;
  --shadow: rgba(0, 0, 0, 0.5);
  --gradient-1: linear-gradient(135deg, #2e2554 0%, #3d3166 50%, #4a3f78 100%);
  --gradient-2: linear-gradient(120deg, #1a1a2e 0%, #2e2554 50%, #3d3166 100%);
  --gradient-3: linear-gradient(45deg, #25274d 0%, #2e2554 100%);
  --nav-bg: rgba(26, 26, 46, 0.95);
  --overlay-bg: rgba(37, 39, 77, 0.9);
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg-color);
  color: var(--text-color);
  line-height: 1.6;
  transition: background-color 0.3s ease, color 0.3s ease;
}

/* Header & Navigation */
header {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  background: var(--nav-bg);
  backdrop-filter: blur(10px);
  box-shadow: 0 2px 20px var(--shadow);
  z-index: 1000;
  transition: all 0.3s ease;
}

nav {
  max-width: 1200px;
  margin: 0 auto;
  padding: 1rem 2rem;
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.logo {
  font-size: 1.5rem;
  font-weight: bold;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  display: flex;
  align-items: center;
  gap: 0.5rem;
  white-space: nowrap;
}

.logo-icon {
  font-size: 2rem;
}

.nav-links {
  display: flex;
  list-style: none;
  gap: 0.5rem;
  align-items: center;
}

.nav-links li {
  flex: 1;
  min-width: 100px;
}

.nav-links a {
  display: flex;
  align-items: center;
  justify-content: center;
  text-decoration: none;
  color: var(--text-color);
  font-weight: 500;
  transition: all 0.3s ease;
  position: relative;
  padding: 0.8rem;
  background: var(--gradient-3);
  border-radius: 10px;
  text-align: center;
  border: 2px solid transparent;
  height: 50px;
  min-width: 100px;
}

.nav-links a:hover,
.nav-links a.active {
  color: var(--accent-color);
  border-color: var(--accent-color);
  transform: translateY(-2px);
  box-shadow: 0 4px 15px var(--shadow);
}

/* Dark Mode Toggle */
.theme-toggle {
  background: var(--gradient-1);
  border: none;
  padding: 0.6rem 1rem;
  border-radius: 50px;
  cursor: pointer;
  font-size: 1.2rem;
  transition: transform 0.3s ease;
  box-shadow: 0 4px 15px var(--shadow);
}

.theme-toggle:hover {
  transform: scale(1.1);
}

/* Mobile Menu Toggle */
.menu-toggle {
  display: none;
  flex-direction: column;
  cursor: pointer;
  gap: 4px;
}

.menu-toggle span {
  width: 25px;
  height: 3px;
  background: var(--text-color);
  border-radius: 3px;
  transition: all 0.3s ease;
}

/* Hero Section */
.hero {
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--gradient-2);
  padding: 6rem 2rem 2rem;
  position: relative;
  overflow: hidden;
}

.hero::before {
  content: '';
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background-image:
    radial-gradient(circle at 20% 50%, rgba(255, 255, 255, 0.1) 0%, transparent 50%),
    radial-gradient(circle at 80% 80%, rgba(255, 255, 255, 0.1) 0%, transparent 50%);
  animation: float 15s ease-in-out infinite;
}

@keyframes float {
  0%, 100% { transform: translateY(0px); }
  50% { transform: translateY(-20px); }
}

.hero-content {
  max-width: 1200px;
  text-align: center;
  position: relative;
  z-index: 1;
}

.hero h1 {
  font-size: 3.5rem;
  margin-bottom: 1rem;
  animation: fadeInUp 1s ease;
}

.hero p {
  font-size: 1.3rem;
  margin-bottom: 1rem;
  opacity: 0.9;
  animation: fadeInUp 1s ease 0.2s backwards;
}

/* Hero Court Image */
.hero-court-img {
  width: 100%;
  max-width: 800px;
  border-radius: 20px;
  box-shadow: 0 20px 60px rgba(0,0,0,0.3);
  margin: 1.5rem auto;
  display: block;
  animation: fadeInUp 1s ease 0.4s backwards;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(30px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* Button Styles */
.btn {
  display: inline-block;
  padding: 1rem 2.5rem;
  background: var(--gradient-1);
  color: white;
  text-decoration: none;
  border-radius: 50px;
  font-weight: 600;
  transition: all 0.3s ease;
  box-shadow: 0 10px 30px var(--shadow);
  border: none;
  cursor: pointer;
  font-size: 1rem;
}

.btn:hover {
  transform: translateY(-3px);
  box-shadow: 0 15px 40px var(--shadow);
}

.btn-secondary {
  background: var(--gradient-3);
  color: var(--text-color);
}

/* Main Content Area */
main {
  padding-top: 40px;
}

section {
  padding: 2rem 2rem;
  max-width: 1200px;
  margin: 0 auto;
}

.section-title {
  text-align: center;
  font-size: 2.5rem;
  margin-bottom: 3rem;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

/* Card Styles */
.card {
  background: var(--card-bg);
  padding: 2rem;
  border-radius: 20px;
  box-shadow: 0 10px 30px var(--shadow);
  transition: all 0.3s ease;
  margin-bottom: 2rem;
}

.card:hover {
  transform: translateY(-5px);
  box-shadow: 0 15px 40px var(--shadow);
}

.card-gradient {
  background: var(--gradient-3);
}

/* Grid Layouts */
.grid {
  display: grid;
  gap: 2rem;
}

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

.grid-3 {
  grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
}

/* Feature Cards */
.feature-card {
  text-align: center;
  padding: 2rem;
}

.feature-icon {
  font-size: 3rem;
  margin-bottom: 1rem;
  background: var(--gradient-1);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.feature-card h3 {
  margin-bottom: 1rem;
  font-size: 1.5rem;
}

/* Dog Character */
.dog-character {
  font-size: 4rem;
  text-align: center;
  margin: 2rem 0;
  animation: bounce 2s ease-in-out infinite;
}

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

/* Info Boxes */
.info-box {
  background: var(--gradient-3);
  padding: 1.5rem;
  border-radius: 15px;
  margin: 1rem 0;
  border-left: 5px solid var(--accent-color);
}

/* Schedule Table */
.schedule-table {
  width: 100%;
  border-collapse: collapse;
  background: var(--card-bg);
  border-radius: 15px;
  overflow: hidden;
  box-shadow: 0 10px 30px var(--shadow);
}

.schedule-table th,
.schedule-table td {
  padding: 1rem;
  text-align: left;
  border-bottom: 1px solid var(--shadow);
}

.schedule-table th {
  background: var(--gradient-1);
  color: white;
  font-weight: 600;
}

.schedule-table tr:hover {
  background: var(--overlay-bg);
}

/* Form Styles */
.form-group {
  margin-bottom: 1.5rem;
}

.form-group label {
  display: block;
  margin-bottom: 0.5rem;
  font-weight: 600;
}

.form-group input,
.form-group textarea,
.form-group select {
  width: 100%;
  padding: 0.8rem;
  border: 2px solid var(--primary-color);
  border-radius: 10px;
  background: var(--card-bg);
  color: var(--text-color);
  font-size: 1rem;
  transition: all 0.3s ease;
}

.form-group input:focus,
.form-group textarea:focus,
.form-group select:focus {
  outline: none;
  border-color: var(--accent-color);
  box-shadow: 0 0 0 3px rgba(147, 112, 219, 0.1);
}

.form-group textarea {
  min-height: 150px;
  resize: vertical;
}

/* Archive styles */
.archive-iframe-container {
  background: var(--card-bg);
  border-radius: 15px;
  padding: 2rem;
  box-shadow: 0 4px 6px var(--shadow);
  margin-bottom: 2rem;
}

.archive-iframe {
  width: 100%;
  height: 600px;
  border: 1px solid rgba(147,112,219,0.3);
  border-radius: 10px;
  padding: 1rem;
  overflow-y: auto;
  background: var(--bg-color);
}

.year-section {
  margin-bottom: 1.5rem;
}

.month-header {
  font-size: 1.3rem;
  font-weight: 700;
  color: var(--accent-color);
  margin-bottom: 0.5rem;
  padding-bottom: 0.5rem;
  border-bottom: 2px solid var(--accent-color);
}

.schedule-list {
  line-height: 1.1;
  font-size: 1.05rem;
}

.schedule-item {
  padding: 0.3rem 0;
  border-bottom: 1px solid rgba(0,0,0,0.05);
}

.pdf-link-card {
  background: var(--gradient-3);
  border-left: 5px solid var(--accent-color);
  padding: 1.5rem;
  border-radius: 10px;
  margin-bottom: 1rem;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pdf-link-card:hover {
  transform: translateY(-2px);
  box-shadow: 0 6px 12px var(--shadow);
}

.pdf-link-card h4 {
  margin-bottom: 0.5rem;
  color: var(--accent-color);
  font-size: 1.3rem;
}

.pdf-link-card a {
  color: var(--accent-color);
  text-decoration: none;
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
}

.pdf-link-card a:hover {
  opacity: 0.8;
}

.pdf-icon {
  font-size: 1.5rem;
}

/* Footer */
footer {
  background: var(--gradient-1);
  color: white;
  text-align: center;
  padding: 3rem 2rem;
  margin-top: 4rem;
}

.footer-content {
  max-width: 1200px;
  margin: 0 auto;
}

.footer-links {
  display: flex;
  justify-content: center;
  gap: 2rem;
  margin-bottom: 1rem;
  flex-wrap: wrap;
}

.footer-links a {
  color: white;
  text-decoration: none;
  transition: opacity 0.3s ease;
}

.footer-links a:hover {
  opacity: 0.7;
}

/* Responsive Design */
@media (max-width: 768px) {
  .menu-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 70px;
    left: -100%;
    width: 100%;
    height: calc(100vh - 70px);
    background: var(--nav-bg);
    flex-direction: column;
    justify-content: flex-start;
    padding: 2rem;
    transition: left 0.3s ease;
    overflow-y: auto;
  }

  .nav-links.active {
    left: 0;
  }

  .nav-links li {
    width: 100%;
  }

  .nav-links a {
    width: 100%;
    min-width: unset;
  }

  .hero h1 {
    font-size: 2rem;
  }

  .hero p {
    font-size: 1rem;
  }

  .section-title {
    font-size: 1.8rem;
  }

  section {
    padding: 2rem 1rem;
  }

  .grid-2,
  .grid-3 {
    grid-template-columns: 1fr;
  }

  .schedule-table {
    font-size: 0.9rem;
  }

  .schedule-table th,
  .schedule-table td {
    padding: 0.5rem;
  }
}

@media (max-width: 480px) {
  .logo {
    font-size: 1rem;
  }

  .hero h1 {
    font-size: 1.5rem;
  }

  .btn {
    padding: 0.8rem 1.5rem;
    font-size: 0.9rem;
  }

  .feature-icon {
    font-size: 2rem;
  }

  .dog-character {
    font-size: 3rem;
  }
}

/* Utility Classes */
.text-center { text-align: center; }
.mt-1 { margin-top: 1rem; }
.mt-2 { margin-top: 2rem; }
.mt-3 { margin-top: 3rem; }
.mb-1 { margin-bottom: 1rem; }
.mb-2 { margin-bottom: 2rem; }
.mb-3 { margin-bottom: 3rem; }
.p-1 { padding: 1rem; }
.p-2 { padding: 2rem; }
.p-3 { padding: 3rem; }

/* Animation Classes */
.fade-in {
  animation: fadeIn 1s ease;
}

@keyframes fadeIn {
  from { opacity: 0; }
  to { opacity: 1; }
}

.slide-in {
  animation: slideIn 0.5s ease;
}

@keyframes slideIn {
  from {
    transform: translateX(-100%);
    opacity: 0;
  }
  to {
    transform: translateX(0);
    opacity: 1;
  }
}
/* 問い合せ項目 1段横並び左寄せ */
.inquiry-options {
  display: flex;
  flex-direction: row;
  gap: 2rem;
  margin-top: 0.5rem;
  align-items: center;
  justify-content: flex-start;
}

.inquiry-options label {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  cursor: pointer;
}
/* 性別ラジオボタン 横並び固定 */
#contact-form input[type="radio"] + span {
  writing-mode: horizontal-tb;
  white-space: nowrap;
}

/* 性別エリア横並び固定 */
#contact-form .form-group div {
  display: flex;
  flex-direction: row;
  align-items: center;
  gap: 2rem;
}
#features .card {
  background: linear-gradient(135deg, #e0e0ff 0%, #f0e6fa 100%);
}
#features .card {
  background: var(--gradient-3);
  border-left: 5px solid var(--accent-color);
}
#member-info .card {
  background: linear-gradient(135deg, #e0e0ff 0%, #f0e6fa 100%);
}
#member-info .card {
  background: var(--gradient-3);
  border-left: 5px solid var(--accent-color);
}
#activity-info .card {
  background: linear-gradient(135deg, #e0e0ff 0%, #f0e6fa 100%);
}
#what-we-offer .card {
  background: linear-gradient(135deg, #e0e0ff 0%, #f0e6fa 100%);
  border-left: 5px solid var(--accent-color);
}
#faq-quick .card {
  background: linear-gradient(135deg, #e0e0ff 0%, #f0e6fa 100%);
}
#news-preview .card {
  background: linear-gradient(135deg, #e0e0ff 0%, #f0e6fa 100%);
  border-left: 5px solid var(--accent-color);
}
#about .card {
  background: var(--gradient-3);
  border-left: 5px solid var(--accent-color);
}
#activity .card {
  background: var(--gradient-3);
  border-left: 5px solid var(--accent-color);
}
#overview .card {
  background: var(--gradient-3);
  border-left: 5px solid var(--accent-color);
}
#activity-details .card {
  background: var(--gradient-3);
  border-left: 5px solid var(--accent-color);
}
#activity-info .card {
  background: var(--gradient-3);
  border-left: 5px solid var(--accent-color);
}
#regular-schedule .card {
  background: var(--gradient-3);
  border-left: 5px solid var(--accent-color);
}
#december-schedule .card {
  background: var(--gradient-3);
  border-left: 5px solid var(--accent-color);
}
#participation .card {
  background: var(--gradient-3);
  border-left: 5px solid var(--accent-color);
}
#archive-link .card {
  background: var(--gradient-3);
  border-left: 5px solid var(--accent-color);
}
#introduction .card {
  background: var(--gradient-3);
  border-left: 5px solid var(--accent-color);
}
#contact-intro .card {
  background: var(--gradient-3);
  border-left: 5px solid var(--accent-color);
}
#privacy .card {
  background: var(--gradient-3);
  border-left: 5px solid var(--accent-color);
}
#faq-quick .card {
  background: var(--gradient-3);
  border-left: 5px solid var(--accent-color);
}