/* ============================================
   maipad Portal — Spring Pastel Light Theme
   ============================================ */

:root {
  --font-primary: -apple-system, BlinkMacSystemFont, 'Inter', 'Helvetica Neue', 'Segoe UI', sans-serif;
  --font-jp: 'Noto Sans JP', -apple-system, BlinkMacSystemFont, 'Inter', 'Hiragino Sans', sans-serif;

  /* Light pastel base */
  --color-bg: #faf9fb;
  --color-bg-alt: #f4f2f7;
  --color-surface: #ffffff;
  --color-surface-secondary: #f0edf5;
  --color-text: #2c2c2e;
  --color-text-secondary: #6e6e73;
  --color-text-tertiary: #aeaeb2;
  --color-border: rgba(0, 0, 0, 0.06);

  /* Spring pastel palette (low saturation) */
  --pastel-purple: #c9b8e8;
  --pastel-purple-soft: #ece5f6;
  --pastel-pink: #e8b8c8;
  --pastel-pink-soft: #f6e5ec;
  --pastel-blue: #b8cde8;
  --pastel-blue-soft: #e5edf6;
  --pastel-yellow: #e8dbb8;
  --pastel-yellow-soft: #f6f0e5;

  --max-width: 980px;
  --radius: 14px;
  --radius-sm: 10px;

  --ease: cubic-bezier(0.25, 0.46, 0.45, 0.94);
  --ease-expo: cubic-bezier(0.19, 1, 0.22, 1);
  --transition-fast: 0.2s var(--ease);
  --transition-medium: 0.4s var(--ease-expo);
}

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

html {
  font-size: 16px;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

body {
  font-family: var(--font-primary);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  min-height: 100vh;
}

a {
  text-decoration: none;
  color: inherit;
  transition: color var(--transition-fast);
}

/* --- Navigation / Header --- */
.header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(250, 249, 251, 0.8);
  backdrop-filter: saturate(180%) blur(20px);
  -webkit-backdrop-filter: saturate(180%) blur(20px);

}

.header-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 24px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  height: 48px;
}

.logo {
  font-size: 15px;
  font-weight: 600;
  letter-spacing: -0.01em;
  color: var(--color-text);
  background: none;
  -webkit-background-clip: unset;
  -webkit-text-fill-color: unset;
  background-clip: unset;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 16px;
}

.header-btn {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  padding: 6px 16px;
  background: var(--pastel-pink-soft);
  border: none;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  color: #8e5a6e;
  transition: all var(--transition-fast);
}

.header-btn:hover {
  background: var(--pastel-pink);
  color: #5a3040;
}

.last-updated {
  font-size: 11px;
  color: var(--color-text-tertiary);
  letter-spacing: 0.02em;
}

/* --- Tabs --- */
.tabs {
  background: var(--color-bg);

  display: flex;
  justify-content: center;
  gap: 0;
  padding: 0;
}

.tab-btn {
  background: transparent;
  border: none;
  border-bottom: 2px solid transparent;
  color: var(--color-text-tertiary);
  padding: 14px 28px;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-primary);
  cursor: pointer;
  letter-spacing: 0.02em;
  transition: all var(--transition-fast);
}

.tab-btn:hover {
  color: var(--color-text-secondary);
}

.tab-btn.active {
  color: var(--color-text);
  border-bottom-color: var(--pastel-purple);
  background: transparent;
}

/* --- Main Content --- */
.main-content {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 32px 24px;
}

.tab-content {
  display: none;
}

.tab-content.active {
  display: block;
}

/* --- Score Filters --- */
.score-filters {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 16px 20px;
  margin-bottom: 24px;
}

.filter-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  align-items: center;
}

.filter-row input[type="text"] {
  flex: 1;
  min-width: 180px;
  padding: 10px 16px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 14px;
  font-family: var(--font-primary);
  outline: none;

}

.filter-row input[type="text"]:focus {
  background: var(--pastel-purple-soft);
}

.filter-row input[type="text"]::placeholder {
  color: var(--color-text-tertiary);
}

.filter-row select {
  padding: 10px 16px;
  border: none;
  border-radius: var(--radius-sm);
  background: var(--color-bg);
  color: var(--color-text);
  font-size: 14px;
  font-family: var(--font-primary);
  cursor: pointer;
  min-width: 130px;
  outline: none;

  -webkit-appearance: none;
}

.filter-row select:focus {
  background: var(--pastel-purple-soft);
}

.filter-clear {
  padding: 10px 16px;
  background: var(--pastel-pink-soft);
  color: #8e5a6e;
  border: none;
  border-radius: var(--radius-sm);
  cursor: pointer;
  font-size: 13px;
  font-family: var(--font-primary);
  font-weight: 500;
  transition: all var(--transition-fast);
}

.filter-clear:hover {
  background: var(--pastel-pink);
  color: #5a3040;
}

/* --- Pagination --- */
.pagination-info {
  display: block;
  width: 100%;
  text-align: center;
  color: var(--color-text-tertiary);
  margin-bottom: 20px;
  font-size: 13px;
  letter-spacing: 0.02em;
}

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 20px;
  padding: 12px 0;
}

.page-btn {
  background: var(--pastel-blue-soft);
  border: none;
  color: #5a6e8e;
  padding: 10px 22px;
  border-radius: 100px;
  cursor: pointer;
  font-weight: 500;
  font-size: 13px;
  font-family: var(--font-primary);
  transition: all var(--transition-fast);
}

.page-btn:hover {
  background: var(--pastel-blue);
  color: #30405a;
}

.page-info {
  font-weight: 500;
  font-size: 14px;
  color: var(--color-text-secondary);
}

/* --- Score Cards --- */
.scores-grid {
  display: flex;
  flex-direction: column;
}

.scores-grid-inner {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  margin-bottom: 24px;
  background: var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.score-card {
  background: var(--color-surface);
  overflow: hidden;
  display: flex;
  flex-direction: column;
  transition: background var(--transition-fast);
}

.score-card:hover {
  background: var(--pastel-purple-soft);
}

.score-image {
  width: 100%;
  height: 72px;
  overflow: hidden;
}

.score-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.score-content {
  padding: 14px 18px 16px;
  flex: 1;
  display: flex;
  flex-direction: column;
}

.score-header {
  display: flex;
  justify-content: space-between;
  align-items: center;
  margin-bottom: 10px;
}

.score-date {
  font-size: 11px;
  color: var(--color-text-tertiary);
  letter-spacing: 0.04em;
}

.score-level {
  background: var(--pastel-purple-soft);
  color: #6e5a8e;
  padding: 3px 10px;
  border-radius: 100px;
  font-size: 11px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.score-song {
  font-family: var(--font-jp);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 6px;
  line-height: 1.4;
  letter-spacing: -0.01em;
  color: var(--color-text);
}

.score-creator {
  font-size: 13px;
  color: var(--color-text-tertiary);
  margin-bottom: 10px;
}

.score-difficulty {
  font-size: 12px;
  color: var(--color-text-tertiary);
  margin-bottom: 8px;
}

.score-comment {
  font-size: 13px;
  color: var(--color-text-secondary);
  background: var(--color-bg);
  padding: 8px 12px;
  border-radius: 8px;
  margin-bottom: 12px;
  line-height: 1.5;
}

.score-link {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  background: var(--pastel-yellow-soft);
  border: none;
  color: #8e7a5a;
  padding: 6px 14px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  transition: all var(--transition-fast);
  margin-top: auto;
  align-self: flex-start;
}

.score-link:hover {
  background: var(--pastel-yellow);
  color: #5a4a30;
}

/* --- Rankings --- */
.rankings-container {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.ranking-section {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 28px;
}

.ranking-section.full-width {
  grid-column: auto;
  max-width: 100%;
}

.ranking-title {
  font-size: 13px;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--color-text-tertiary);
  margin-bottom: 20px;
  padding-bottom: 14px;
}

.ranking-list {
  list-style: none;
}

.ranking-item {
  display: flex;
  align-items: center;
  padding: 14px 0;
}



.rank-number {
  width: 28px;
  height: 28px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 8px;
  font-weight: 600;
  font-size: 13px;
  margin-right: 16px;
  flex-shrink: 0;
}

.rank-1 {
  background: var(--pastel-yellow-soft);
  color: #8e7a5a;
}

.rank-2 {
  background: var(--pastel-blue-soft);
  color: #5a6e8e;
}

.rank-3 {
  background: var(--pastel-pink-soft);
  color: #8e5a6e;
}

.rank-other {
  background: var(--color-bg);
  color: var(--color-text-tertiary);
}

.rank-name {
  flex: 1;
  font-family: var(--font-jp);
  font-weight: 400;
  font-size: 15px;
}

.rank-points {
  font-weight: 600;
  font-size: 14px;
  color: var(--color-text-secondary);
  letter-spacing: -0.01em;
}

/* --- Challenge Track --- */
.ct-list {
  display: flex;
  flex-direction: column;
  gap: 1px;
  background: var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.ct-card {
  background: var(--color-surface);
  border: none;
  border-radius: 0;
  padding: 20px 24px;
  display: grid;
  grid-template-columns: 64px 1fr auto;
  gap: 20px;
  align-items: center;
  transition: background var(--transition-fast);
}

.ct-card:hover {
  background: var(--pastel-blue-soft);
}

.ct-card.has-image {
  grid-template-columns: 64px 64px 1fr auto;
}

.ct-image {
  width: 64px;
  height: 64px;
  border-radius: 10px;
  overflow: hidden;
  flex-shrink: 0;
}

.ct-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.ct-date {
  text-align: center;
}

.ct-date-day {
  font-size: 22px;
  font-weight: 700;
  color: var(--color-text);
  line-height: 1;
  letter-spacing: -0.02em;
}

.ct-date-dow {
  font-size: 11px;
  color: var(--color-text-tertiary);
  margin-top: 2px;
}

.ct-info h3 {
  font-family: var(--font-jp);
  font-size: 15px;
  font-weight: 600;
  margin-bottom: 4px;
}

.ct-info p {
  font-size: 13px;
  color: var(--color-text-secondary);
}

.ct-level {
  background: var(--pastel-purple-soft);
  color: #6e5a8e;
  padding: 6px 14px;
  border-radius: 100px;
  font-weight: 600;
  font-size: 13px;
}

.ct-life {
  margin-top: 6px;
  font-size: 12px;
  color: var(--color-text-secondary);
}

.ct-rankers {
  margin-top: 4px;
  font-size: 12px;
  color: var(--color-text-tertiary);
}

.ct-rankers span {
  color: var(--color-text-secondary);
}

.ct-download {
  display: inline-flex;
  align-items: center;
  gap: 4px;
  margin-top: 8px;
  background: var(--pastel-yellow-soft);
  border: none;
  color: #8e7a5a;
  padding: 5px 14px;
  border-radius: 100px;
  font-size: 12px;
  font-weight: 500;
  transition: all var(--transition-fast);
}

.ct-download:hover {
  background: var(--pastel-yellow);
  color: #5a4a30;
}

/* --- Season Selector --- */
.season-selector {
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 14px 20px;
  margin-bottom: 20px;
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
}

.season-selector label {
  color: var(--color-text-secondary);
  font-size: 13px;
  font-weight: 500;
}

.season-selector select {
  background: var(--color-bg);
  border: none;
  color: var(--color-text);
  padding: 8px 14px;
  border-radius: var(--radius-sm);
  font-size: 14px;
  font-family: var(--font-primary);
  cursor: pointer;
  outline: none;
  -webkit-appearance: none;
}

.season-selector select:hover,
.season-selector select:focus {
  background: var(--pastel-purple-soft);
}

/* --- Footer --- */
.footer {
  text-align: center;
  max-width: var(--max-width);
  margin: 40px auto 0;
  padding: 32px 24px;
}

.refresh-btn {
  background: var(--pastel-blue-soft);
  border: none;
  color: #5a6e8e;
  padding: 10px 24px;
  border-radius: 100px;
  cursor: pointer;
  font-size: 13px;
  font-weight: 500;
  font-family: var(--font-primary);
  margin-bottom: 16px;
  transition: all var(--transition-fast);
}

.refresh-btn:hover {
  background: var(--pastel-blue);
  color: #30405a;
}

.refresh-btn:disabled {
  opacity: 0.3;
  cursor: not-allowed;
}

.copyright {
  font-size: 12px;
  color: var(--color-text-tertiary);
}

.version {
  margin-top: 6px;
  font-size: 11px;
  color: var(--color-text-tertiary);
  opacity: 0.5;
}

/* --- Loading --- */
.loading {
  text-align: center;
  padding: 80px 24px;
}

.loading-spinner {
  width: 32px;
  height: 32px;
  border: 2px solid var(--color-border);
  border-top-color: var(--pastel-purple);
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
  margin: 0 auto 16px;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.loading p {
  font-size: 13px;
  color: var(--color-text-tertiary);
}

/* --- Empty State --- */
.empty-state {
  text-align: center;
  padding: 80px 24px;
  color: var(--color-text-tertiary);
}

.empty-state-icon {
  font-size: 2.5rem;
  margin-bottom: 12px;
  opacity: 0.5;
}

/* --- Hero (portal.html only) --- */
.hero {
  text-align: center;
  padding: 100px 24px 60px;
}

.hero .logo {
  font-size: 48px;
  font-weight: 700;
  letter-spacing: -0.03em;
  color: var(--color-text);
  display: block;
  margin-bottom: 8px;
}

.tagline {
  font-size: 17px;
  font-weight: 300;
  color: var(--color-text-secondary);
}

/* --- Portal Cards (portal.html only) --- */
.cards-container {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
  gap: 1px;
  max-width: 600px;
  margin: 0 auto;
  padding: 0 24px 80px;
  background: var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
}

.portal-card {
  background: var(--color-surface);
  border: none;
  border-radius: 0;
  padding: 32px 28px;
  transition: background var(--transition-fast);
  position: relative;
  overflow: hidden;
}

.portal-card::before {
  display: none;
}

.portal-card:hover {
  background: var(--pastel-purple-soft);
}

.card-icon {
  font-size: 2rem;
  margin-bottom: 14px;
  display: block;
}

.card-title {
  font-size: 18px;
  font-weight: 600;
  margin-bottom: 6px;
  letter-spacing: -0.01em;
}

.card-desc {
  font-size: 14px;
  color: var(--color-text-secondary);
  line-height: 1.5;
}

.card-arrow {
  position: absolute;
  bottom: 28px;
  right: 28px;
  font-size: 16px;
  color: var(--color-text-tertiary);
  opacity: 0;
  transform: translateX(-4px);
  transition: all var(--transition-fast);
}

.portal-card:hover .card-arrow {
  opacity: 1;
  transform: translateX(0);
}

/* --- Particles (hidden) --- */
.particles {
  display: none;
}

/* --- Responsive --- */
@media (max-width: 768px) {
  .scores-grid-inner {
    grid-template-columns: 1fr;
  }

  .ct-card {
    grid-template-columns: 1fr;
    text-align: left;
    gap: 12px;
  }

  .ct-card.has-image {
    grid-template-columns: 1fr;
  }

  .ct-image {
    width: 100%;
    height: 160px;
    margin: 0;
  }

  .ct-date {
    text-align: left;
  }

  .ct-level {
    justify-self: start;
  }

  .tab-btn {
    padding: 12px 16px;
    font-size: 12px;
  }
}

@media (max-width: 480px) {
  .header-content {
    height: 44px;
  }

  .logo {
    font-size: 13px;
  }

  .filter-row {
    flex-direction: column;
  }

  .filter-row input[type="text"],
  .filter-row select {
    width: 100%;
  }
}