/* Opera Theme - Shared Styles for ShukuYaku (Teal) */

:root {
  --teal-deep: #1a4d4d;
  --teal-dark: #2a5d5d;
  --teal-rich: #3a7a7a;
  --teal-medium: #5a9a9a;
  --teal-light: #7ababa;
  --gold: #bfa76f;
  --gold-bright: #D4AF37;
  --gold-light: #e8d4a2;
  --cream: #fffdfb;
}

html {
  scroll-behavior: smooth;
}

body {
  font-family: 'Noto Serif JP', '游明朝', 'Yu Mincho', 'Hiragino Mincho ProN', 'MS P明朝', serif;
  background: linear-gradient(180deg, var(--teal-deep) 0%, var(--teal-dark) 50%, var(--teal-rich) 100%);
  background-attachment: fixed;
  margin: 0;
  padding: 0;
  min-height: 100vh;
  overflow-x: hidden;
}

/* Floating particles */
.particles {
  position: fixed;
  top: 100px;
  left: 0;
  width: 100%;
  height: calc(100% - 100px);
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

/* Auth containers - above particles */
.login-container,
.reset-container,
.resetpw-container,
.register-container,
.auth-container {
  position: relative;
  z-index: 20;
}

@media (max-width: 900px) {
  .particles {
    top: 140px;
    height: calc(100% - 140px);
  }
}

.particle {
  position: absolute;
  bottom: -10px;
  background: radial-gradient(circle, rgba(212, 175, 55, 0.9) 0%, rgba(191, 167, 111, 0.5) 50%, transparent 70%);
  border-radius: 50%;
  animation: floatUp 15s infinite ease-out;
}

.particle.small { width: 4px; height: 4px; }
.particle.medium { width: 6px; height: 6px; }
.particle.large { width: 8px; height: 8px; }

@keyframes floatUp {
  0% {
    transform: translateY(0) rotate(0deg);
    opacity: 0;
  }
  2% {
    opacity: 0.8;
    transform: translateY(-5vh) rotate(15deg);
  }
  90% {
    opacity: 0.8;
  }
  100% {
    transform: translateY(-100vh) rotate(360deg);
    opacity: 0;
  }
}

/* Main content wrapper */
.main-content {
  position: relative;
  z-index: 3;
  padding-top: 20px;
  padding-bottom: 40px;
}

/* Page title styling */
h2 {
  color: var(--cream);
  text-shadow: 0 2px 10px rgba(0, 0, 0, 0.3);
}

/* Golden card styling for content containers */
.opera-card {
  background: var(--cream);
  border: 2px solid;
  border-image: linear-gradient(135deg, var(--gold), var(--gold-light), var(--gold)) 1;
  box-shadow:
    0 20px 50px rgba(0, 0, 0, 0.3),
    inset 0 0 60px rgba(191, 167, 111, 0.05);
  position: relative;
  z-index: 2;
}

.opera-card::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 8px;
  right: 8px;
  bottom: 8px;
  border: 1px solid rgba(191, 167, 111, 0.3);
  pointer-events: none;
}

/* Form container for auth pages */
.auth-container {
  background: var(--cream);
  padding: 30px;
  border-radius: 0;
  box-shadow:
    0 20px 50px rgba(0, 0, 0, 0.3),
    inset 0 0 60px rgba(191, 167, 111, 0.05);
  border: 2px solid;
  border-image: linear-gradient(135deg, var(--gold), var(--gold-light), var(--gold)) 1;
  width: 320px;
  margin: 50px auto;
  position: relative;
  z-index: 20;
}

.auth-container::after {
  content: '';
  position: absolute;
  top: 8px;
  left: 8px;
  right: 8px;
  bottom: 8px;
  border: 1px solid rgba(191, 167, 111, 0.3);
  pointer-events: none;
}

.auth-container h2 {
  text-align: center;
  color: var(--teal-rich);
  margin-bottom: 25px;
  text-shadow: none;
}

/* Footer styling */
footer {
  text-align: center;
  padding: 100px 20px 50px;
  position: relative;
  z-index: 3;
}

footer::before {
  content: '';
  position: absolute;
  top: 0;
  left: 50%;
  transform: translateX(-50%);
  width: 300px;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--gold), transparent);
}

footer p {
  color: rgba(255, 255, 255, 0.5);
  font-size: 0.95rem;
  letter-spacing: 0.15em;
  font-family: 'Noto Serif JP', '游明朝', 'Yu Mincho', 'Hiragino Mincho ProN', 'MS P明朝', serif;
}

@media (max-width: 600px) {
  footer {
    padding: 80px 15px 30px;
  }

  footer p {
    font-size: 0.85rem;
  }

  .auth-container {
    width: 90%;
    max-width: 320px;
    margin: 30px auto;
    padding: 20px;
  }
}

/* Ensure all card types appear above particles */
.card-grid .card,
.storage-card,
.account-card,
.change-card,
.notification-card,
.input-section,
.upload-box,
.purchase-container,
.shukuyaku-section,
.shukuyaku-card {
  position: relative;
  z-index: 2;
}

/* Button shimmer effect */
input[type="submit"],
button[type="submit"]:not(.logout-link-button),
.btn-primary,
.submit-btn,
.cancel-subscription-btn,
.login-container input[type="submit"],
.login-container button[type="submit"],
.reset-container input[type="submit"],
.reset-container button[type="submit"],
.resetpw-container input[type="submit"],
.resetpw-container button[type="submit"],
.register-container input[type="submit"],
.register-container button[type="submit"],
.auth-container input[type="submit"],
.auth-container button[type="submit"] {
  position: relative !important;
  overflow: hidden !important;
}

input[type="submit"]::after,
button[type="submit"]:not(.logout-link-button)::after,
.btn-primary::after,
.submit-btn::after,
.cancel-subscription-btn::after,
.login-container input[type="submit"]::after,
.login-container button[type="submit"]::after,
.reset-container input[type="submit"]::after,
.reset-container button[type="submit"]::after,
.resetpw-container input[type="submit"]::after,
.resetpw-container button[type="submit"]::after,
.register-container input[type="submit"]::after,
.register-container button[type="submit"]::after,
.auth-container input[type="submit"]::after,
.auth-container button[type="submit"]::after {
  content: '' !important;
  position: absolute !important;
  top: 0 !important;
  left: -100%;
  width: 50%;
  height: 100% !important;
  background: linear-gradient(
    90deg,
    transparent,
    rgba(255, 255, 255, 0.3),
    transparent
  ) !important;
  animation: buttonShimmer 3s ease-in-out infinite !important;
  pointer-events: none;
  z-index: 1;
}

@keyframes buttonShimmer {
  0% {
    left: -100%;
  }
  50%, 100% {
    left: 150%;
  }
}