/* ============================================
   花海咲季 Producer Card — Style System
   Color theme based on image color #E30F25 (Red)
   ============================================ */

:root {
  /* Primary palette — 咲季レッド */
  --primary: #E30F25;
  --primary-light: #FF3B50;
  --primary-dark: #B50A1D;
  --primary-glow: rgba(227, 15, 37, 0.4);
  --primary-subtle: rgba(227, 15, 37, 0.08);

  /* Accent */
  --accent: #FFB7C5;
  /* sakura pink */
  --accent-dark: #E8919F;

  /* Neutrals */
  --bg-deep: #0A0A0F;
  --bg-card: rgba(18, 18, 28, 0.3);
  --bg-card-solid: rgba(18, 18, 28, 0.35);
  --bg-sns: rgba(255, 255, 255, 0.04);
  --bg-sns-hover: rgba(255, 255, 255, 0.06);

  --text-primary: #F5F0F0;
  --text-secondary: rgba(245, 240, 240, 0.6);
  --text-muted: rgba(245, 240, 240, 0.35);

  --border: rgba(255, 255, 255, 0.08);
  --border-hover: rgba(227, 15, 37, 0.3);

  /* Spacing */
  --card-padding: 2.5rem;
  --card-radius: 1.5rem;
  --sns-radius: 1rem;

  /* Transitions */
  --ease-out: cubic-bezier(0.22, 1, 0.36, 1);
  --transition-fast: 0.2s var(--ease-out);
  --transition-mid: 0.4s var(--ease-out);
  --transition-slow: 0.6s var(--ease-out);
}

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

html {
  font-size: 16px;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: 'Inter', 'Noto Sans SC', 'Noto Sans JP', system-ui, sans-serif;
  background: var(--bg-deep);
  color: var(--text-primary);
  min-height: 100vh;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow-x: hidden;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body[data-lang="ja"] {
  font-family: 'Inter', 'Noto Sans JP', 'Noto Sans SC', system-ui, sans-serif;
}

/* ============ Background Card Image ============ */
.bg-card-image {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  opacity: 0;
  transition: opacity 1.2s ease-in-out;
  overflow: hidden;
}

.bg-card-image.loaded {
  opacity: 1;
}

/* Base blurred background layer (extends beyond edges to hide blur fading) */
.bg-card-image::before {
  content: '';
  position: absolute;
  inset: -5%;
  background-image: var(--bg-image);
  background-size: cover;
  background-position: center;
  background-repeat: no-repeat;
  filter: blur(25px) brightness(0.5);
  z-index: 1;
  display: none; /* Only show heavily blurred sides on PC */
}

@media (min-width: 768px) {
  .bg-card-image::before {
    display: block;
  }
}

/* Main card art & Subtle vignette */
.bg-card-image::after {
  content: '';
  position: absolute;
  inset: 0;
  z-index: 2;
  background-image:
    linear-gradient(to bottom, rgba(10, 10, 15, 0.1) 0%, rgba(10, 10, 15, 0.2) 60%, rgba(10, 10, 15, 0.5) 100%),
    radial-gradient(ellipse at center, transparent 50%, rgba(10, 10, 15, 0.25) 100%),
    var(--bg-image);
  background-size: cover, cover, cover;
  background-position: center, center, center top;
  background-repeat: no-repeat;
}

@media (min-width: 768px) {
  .bg-card-image::after {
    /* Keep vignette stretched 'cover', but shrink image layer to 'contain' */
    background-size: cover, cover, contain;
    background-position: center, center, center center;
  }
}

/* ============ Canvas (Sakura Particles) ============ */
#sakura-canvas {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 100%;
  z-index: 0;
  pointer-events: none;
}

/* ============ Background Gradient ============ */
body::before {
  content: '';
  position: fixed;
  top: -50%;
  left: -50%;
  width: 200%;
  height: 200%;
  background:
    radial-gradient(ellipse at 20% 50%, rgba(227, 15, 37, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse at 80% 20%, rgba(255, 183, 197, 0.08) 0%, transparent 50%),
    radial-gradient(ellipse at 50% 80%, rgba(227, 15, 37, 0.06) 0%, transparent 40%);
  animation: bgDrift 20s ease-in-out infinite alternate;
  z-index: 0;
}

@keyframes bgDrift {
  0% {
    transform: translate(0, 0) rotate(0deg);
  }

  100% {
    transform: translate(-2%, -1%) rotate(1deg);
  }
}

/* ============ Language Toggle ============ */
.lang-toggle {
  position: fixed;
  top: 1.5rem;
  right: 1.5rem;
  z-index: 100;
  background: var(--bg-card);
  backdrop-filter: blur(20px);
  -webkit-backdrop-filter: blur(20px);
  border: 1px solid var(--border);
  color: var(--text-primary);
  padding: 0.5rem 1rem;
  border-radius: 2rem;
  cursor: pointer;
  font-size: 0.85rem;
  font-weight: 500;
  font-family: inherit;
  letter-spacing: 0.02em;
  transition: all var(--transition-fast);
  display: flex;
  align-items: center;
  gap: 0.4rem;
}

.lang-toggle:hover {
  border-color: var(--border-hover);
  background: var(--bg-sns-hover);
  transform: translateY(-1px);
  box-shadow: 0 4px 16px rgba(227, 15, 37, 0.15);
}

.lang-toggle:active {
  transform: scale(0.97);
}

.lang-label {
  display: none;
}

[data-lang="zh"] .lang-label[data-lang="zh"],
[data-lang="ja"] .lang-label[data-lang="ja"] {
  display: inline;
}

/* ============ Card Container ============ */
.card-container {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 420px;
  padding: 1.5rem;
}

.card {
  background: var(--bg-card);
  backdrop-filter: blur(16px);
  -webkit-backdrop-filter: blur(16px);
  border: 1px solid var(--border);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  position: relative;
  overflow: hidden;
  animation: cardEnter 0.8s var(--ease-out) both;
}

@keyframes cardEnter {
  from {
    opacity: 0;
    transform: translateY(30px) scale(0.97);
  }

  to {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

/* Card accent bar */
.card-accent {
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  height: 3px;
  background: linear-gradient(90deg, var(--primary), var(--accent), var(--primary));
  background-size: 200% 100%;
  animation: shimmer 3s ease-in-out infinite;
}

@keyframes shimmer {

  0%,
  100% {
    background-position: 0% 50%;
  }

  50% {
    background-position: 100% 50%;
  }
}

/* ============ Avatar ============ */
.avatar-section {
  display: flex;
  flex-direction: column;
  align-items: center;
  margin-bottom: 1.5rem;
  animation: fadeUp 0.6s var(--ease-out) 0.2s both;
}

.avatar-ring {
  position: relative;
  width: 96px;
  height: 96px;
  border-radius: 50%;
  padding: 3px;
  background: linear-gradient(135deg, var(--primary), var(--accent));
  animation: ringPulse 3s ease-in-out infinite;
}

@keyframes ringPulse {

  0%,
  100% {
    box-shadow: 0 0 0 0 var(--primary-glow);
  }

  50% {
    box-shadow: 0 0 20px 4px var(--primary-glow);
  }
}

.avatar {
  width: 100%;
  height: 100%;
  border-radius: 50%;
  background: linear-gradient(135deg, var(--primary-dark), var(--bg-card-solid));
  display: flex;
  align-items: center;
  justify-content: center;
  border: 3px solid var(--bg-card-solid);
}

.avatar-initial {
  font-size: 2.2rem;
  font-weight: 700;
  background: linear-gradient(135deg, #fff, var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
}

.avatar-initial img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: 50%;
}

.status-badge {
  display: flex;
  align-items: center;
  gap: 0.35rem;
  margin-top: 0.6rem;
  font-size: 0.75rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.status-dot {
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: #4AE68A;
  animation: dotPulse 2s ease-in-out infinite;
}

@keyframes dotPulse {

  0%,
  100% {
    opacity: 1;
  }

  50% {
    opacity: 0.4;
  }
}

/* ============ Name Section ============ */
.name-section {
  text-align: center;
  margin-bottom: 1.5rem;
  animation: fadeUp 0.6s var(--ease-out) 0.3s both;
}

.nickname {
  font-size: 1.75rem;
  font-weight: 700;
  letter-spacing: -0.01em;
  margin-bottom: 0.35rem;
  background: linear-gradient(135deg, var(--text-primary), var(--accent));
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

.title {
  font-size: 0.95rem;
  color: var(--primary-light);
  font-weight: 500;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 0.35rem;
  margin-bottom: 0.3rem;
}

.oshi-icon {
  font-size: 1rem;
  animation: petalSpin 4s linear infinite;
}

@keyframes petalSpin {
  from {
    transform: rotate(0deg);
  }

  to {
    transform: rotate(360deg);
  }
}

.subtitle {
  font-size: 0.8rem;
  color: var(--text-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

/* ============ Divider ============ */
.divider {
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.25rem;
  position: relative;
  animation: fadeUp 0.6s var(--ease-out) 0.35s both;
}

.divider::before,
.divider::after {
  content: '';
  flex: 1;
  height: 1px;
  background: linear-gradient(90deg, transparent, var(--border), transparent);
}

.divider-icon {
  padding: 0 1rem;
  color: var(--primary);
  font-size: 0.5rem;
  opacity: 0.6;
}

/* ============ Quote ============ */
.quote-section {
  text-align: center;
  margin-bottom: 1.75rem;
  animation: fadeUp 0.6s var(--ease-out) 0.4s both;
}

.quote {
  font-size: 0.85rem;
  color: var(--text-secondary);
  font-style: italic;
  line-height: 1.6;
  letter-spacing: 0.02em;
}

/* ============ SNS Section ============ */
.sns-section {
  animation: fadeUp 0.6s var(--ease-out) 0.5s both;
}

.sns-title {
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--text-muted);
  margin-bottom: 0.85rem;
  font-weight: 500;
}

.sns-grid {
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
}

.sns-card {
  display: flex;
  align-items: center;
  gap: 0.85rem;
  padding: 0.75rem 1rem;
  background: var(--bg-sns);
  border: 1px solid var(--border);
  border-radius: var(--sns-radius);
  text-decoration: none;
  color: var(--text-primary);
  transition: all var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.sns-card::before {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, transparent, rgba(227, 15, 37, 0.05));
  opacity: 0;
  transition: opacity var(--transition-fast);
}

.sns-card:hover {
  border-color: var(--border-hover);
  background: var(--bg-sns-hover);
  transform: translateX(4px);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.3);
}

.sns-card:hover::before {
  opacity: 1;
}

.sns-card:active {
  transform: translateX(2px) scale(0.99);
}

/* SNS icon wrappers */
.sns-icon-wrapper {
  width: 40px;
  height: 40px;
  min-width: 40px;
  border-radius: 0.65rem;
  display: flex;
  align-items: center;
  justify-content: center;
  position: relative;
  z-index: 1;
  transition: transform var(--transition-fast);
}

.sns-card:hover .sns-icon-wrapper {
  transform: scale(1.08);
}

.sns-icon {
  width: 20px;
  height: 20px;
  color: #fff;
}

/* Platform-specific colors */
.sns-x-bg {
  background: linear-gradient(135deg, #1a1a2e, #2D2D3A);
}

.sns-bili-bg {
  background: linear-gradient(135deg, #00A1D6, #0091C2);
}

.sns-xhs-bg {
  background: linear-gradient(135deg, #FF2442, #E8102E);
}

.sns-orcid-bg {
  background: linear-gradient(135deg, #A6CE39, #8CBA2A);
}

.sns-qq-bg {
  background: linear-gradient(135deg, #12B7F5, #0EA5E0);
}

.sns-line-bg {
  background: linear-gradient(135deg, #06C755, #05B34C);
}

/* SNS info */
.sns-info {
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 0.1rem;
  position: relative;
  z-index: 1;
  min-width: 0;
}

.sns-name {
  font-size: 0.9rem;
  font-weight: 600;
  letter-spacing: 0.01em;
}

.sns-handle {
  font-size: 0.75rem;
  color: var(--text-muted);
  overflow: hidden;
  text-overflow: ellipsis;
  white-space: nowrap;
}

/* Arrow */
.sns-arrow {
  width: 18px;
  height: 18px;
  color: var(--text-muted);
  transition: all var(--transition-fast);
  flex-shrink: 0;
  position: relative;
  z-index: 1;
}

.sns-card:hover .sns-arrow {
  color: var(--primary-light);
  transform: translateX(3px);
}

/* Language-based visibility */
.sns-zh-only,
.sns-ja-only {
  display: none;
}

[data-lang="zh"] .sns-zh-only {
  display: flex;
}

[data-lang="ja"] .sns-ja-only {
  display: flex;
}

/* Staggered animation for SNS cards */
.sns-card:nth-child(1) {
  animation: snsSlide 0.5s var(--ease-out) 0.6s both;
}

.sns-card:nth-child(2) {
  animation: snsSlide 0.5s var(--ease-out) 0.7s both;
}

.sns-card:nth-child(3) {
  animation: snsSlide 0.5s var(--ease-out) 0.8s both;
}

.sns-card:nth-child(4) {
  animation: snsSlide 0.5s var(--ease-out) 0.9s both;
}

.sns-card:nth-child(5) {
  animation: snsSlide 0.5s var(--ease-out) 1.0s both;
}

.sns-card:nth-child(6) {
  animation: snsSlide 0.5s var(--ease-out) 1.1s both;
}

/* Speed up animation after language switch */
body.lang-switched .sns-card {
  animation-delay: 0s !important;
  animation-duration: 0.3s !important;
}

@keyframes snsSlide {
  from {
    opacity: 0;
    transform: translateX(-16px);
  }

  to {
    opacity: 1;
    transform: translateX(0);
  }
}

/* ============ Footer ============ */
.card-footer {
  margin-top: 1.75rem;
  text-align: center;
  animation: fadeUp 0.6s var(--ease-out) 0.8s both;
}

.footer-text {
  font-size: 0.78rem;
  color: var(--text-muted);
  letter-spacing: 0.04em;
}

.footer-decoration {
  display: flex;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 0.5rem;
  font-size: 0.6rem;
  color: var(--primary);
  opacity: 0.4;
}

.footer-decoration span {
  animation: floatPetal 3s ease-in-out infinite;
}

.footer-decoration span:nth-child(2) {
  animation-delay: 0.3s;
}

.footer-decoration span:nth-child(3) {
  animation-delay: 0.6s;
}

@keyframes floatPetal {

  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-3px);
  }
}

/* ============ Shared Keyframes ============ */
@keyframes fadeUp {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ============ Responsive ============ */
@media (max-width: 480px) {
  :root {
    --card-padding: 1.75rem;
  }

  .card-container {
    padding: 1rem;
  }

  .nickname {
    font-size: 1.5rem;
  }

  .lang-toggle {
    top: 1rem;
    right: 1rem;
  }
}

@media (max-width: 360px) {
  :root {
    --card-padding: 1.25rem;
  }

  .avatar-ring {
    width: 80px;
    height: 80px;
  }

  .avatar-initial {
    font-size: 1.8rem;
  }
}

/* ============ Prefers reduced motion ============ */
@media (prefers-reduced-motion: reduce) {

  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
  }
}