:root {
  --bg: 220 24% 96%;
  --bg-soft: 220 20% 94%;
  --panel: 0 0% 100%;
  --panel-soft: 220 18% 98%;
  --fg: 232 26% 16%;
  --fg-soft: 230 12% 38%;
  --line: 228 16% 86%;
  --line-strong: 228 18% 78%;
  --brand: 244 43% 36%;
  --brand-soft: 244 34% 92%;
  --accent: 27 91% 54%;
  --accent-soft: 27 100% 95%;
  --success: 158 52% 42%;
}

html {
  scroll-behavior: smooth;
}

body {
  min-height: 100vh;
  color: hsl(var(--fg));
  background:
    radial-gradient(circle at 12% 12%, hsl(var(--brand-soft) / 0.8), transparent 32rem),
    radial-gradient(circle at 86% 18%, hsl(var(--accent-soft) / 0.75), transparent 26rem),
    linear-gradient(180deg, hsl(var(--bg)), hsl(var(--bg-soft)));
  font-family: "Inter", "Noto Sans SC", sans-serif;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background-image:
    linear-gradient(hsl(var(--fg) / 0.035) 1px, transparent 1px),
    linear-gradient(90deg, hsl(var(--fg) / 0.035) 1px, transparent 1px);
  background-size: 22px 22px;
  mask-image: linear-gradient(to bottom, black, transparent 78%);
}

.font-heading {
  font-family: "Inter", "Noto Sans SC", sans-serif;
}

.font-body {
  font-family: "Inter", "Noto Sans SC", sans-serif;
}

.font-mono {
  font-family: "JetBrains Mono", monospace;
}

.koda-shell {
  position: relative;
  z-index: 10;
}

.koda-nav {
  background: hsl(var(--panel) / 0.78);
  border-bottom: 1px solid hsl(var(--line));
  backdrop-filter: blur(12px);
}

.koda-panel {
  border: 1px solid hsl(var(--line));
  background: hsl(var(--panel) / 0.88);
  box-shadow: 0 16px 48px hsl(var(--fg) / 0.055);
}

.koda-card {
  border: 1px solid hsl(var(--line));
  background: hsl(var(--panel) / 0.82);
  transition: transform 0.28s ease, border-color 0.28s ease, background 0.28s ease, box-shadow 0.28s ease;
}

.koda-card:hover {
  transform: translateY(-2px);
  border-color: hsl(var(--line-strong));
  background: hsl(var(--panel));
  box-shadow: 0 18px 44px hsl(var(--brand) / 0.08);
}

.koda-label {
  color: hsl(var(--brand));
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.koda-muted {
  color: hsl(var(--fg-soft));
}

.koda-btn-primary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border-radius: 999px;
  background: hsl(var(--accent));
  color: white;
  font-weight: 700;
  transition: transform 0.28s ease, filter 0.28s ease;
}

.koda-btn-primary:hover {
  transform: translateY(-2px);
  filter: brightness(1.04);
}

.koda-btn-secondary {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 1px solid hsl(var(--line-strong));
  border-radius: 999px;
  background: hsl(var(--panel) / 0.72);
  color: hsl(var(--brand));
  font-weight: 700;
  transition: transform 0.28s ease, background 0.28s ease;
}

.koda-btn-secondary:hover {
  transform: translateY(-2px);
  background: hsl(var(--brand-soft));
}

.pixel-mark {
  width: 0.58rem;
  height: 0.58rem;
  border-radius: 2px;
  background: hsl(var(--brand));
  box-shadow: 10px 0 0 hsl(var(--accent)), 0 10px 0 hsl(var(--brand) / 0.38);
}

.pixel-float {
  animation: pixel-shift 2.8s ease-in-out infinite;
}

@keyframes pixel-shift {
  0%, 100% {
    transform: translate(0, 0);
  }
  50% {
    transform: translate(3px, -2px);
  }
}

.resource-cover {
  background:
    linear-gradient(135deg, hsl(var(--brand-soft)), hsl(var(--panel))),
    hsl(var(--panel-soft));
}

.title-cover {
  position: relative;
  display: flex;
  width: 100%;
  height: 100%;
  flex-direction: column;
  justify-content: space-between;
  overflow: hidden;
  background:
    radial-gradient(circle at 82% 18%, hsl(var(--accent-soft) / 0.95), transparent 18rem),
    radial-gradient(circle at 12% 8%, hsl(var(--brand-soft) / 0.95), transparent 18rem),
    linear-gradient(135deg, hsl(var(--panel)), hsl(var(--panel-soft)));
}

.title-cover::before {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.42;
  background-image:
    linear-gradient(hsl(var(--fg) / 0.045) 1px, transparent 1px),
    linear-gradient(90deg, hsl(var(--fg) / 0.045) 1px, transparent 1px);
  background-size: 18px 18px;
  mask-image: linear-gradient(135deg, black, transparent 78%);
}

.title-cover::after {
  content: "";
  position: absolute;
  right: -3rem;
  bottom: -3rem;
  width: 10rem;
  height: 10rem;
  border-radius: 999px;
  background: hsl(var(--brand-soft) / 0.86);
}

.title-cover-card {
  padding: 1.25rem;
}

.title-cover-detail {
  padding: clamp(1.4rem, 4vw, 3rem);
}

.title-cover-mark,
.title-cover-name,
.title-cover-meta {
  position: relative;
  z-index: 1;
}

.title-cover-mark {
  width: fit-content;
  border-radius: 999px;
  border: 1px solid hsl(var(--line));
  background: hsl(var(--panel) / 0.72);
  padding: 0.4rem 0.72rem;
  color: hsl(var(--brand));
  font-family: "JetBrains Mono", monospace;
  font-size: 0.72rem;
  font-weight: 700;
  letter-spacing: 0.12em;
}

.title-cover-name {
  max-width: 92%;
  color: hsl(var(--fg));
  font-family: "Inter", "Noto Sans SC", sans-serif;
  font-weight: 650;
  letter-spacing: -0.035em;
}

.title-cover-card .title-cover-name {
  display: -webkit-box;
  margin-top: auto;
  overflow: hidden;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  font-size: 1.35rem;
  line-height: 1.04;
}

.title-cover-detail .title-cover-name {
  max-width: 48rem;
  font-size: clamp(2rem, 5vw, 4.6rem);
  line-height: 0.98;
}

.title-cover-meta {
  color: hsl(var(--fg-soft));
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
}

.line-clamp-1 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 1;
  overflow: hidden;
}

.line-clamp-2 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 2;
  overflow: hidden;
}

.line-clamp-3 {
  display: -webkit-box;
  -webkit-box-orient: vertical;
  -webkit-line-clamp: 3;
  overflow: hidden;
}

.anti-loss-modal {
  background: hsl(var(--fg) / 0.28);
  backdrop-filter: blur(8px);
}

.koda-scrollbar-none {
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.koda-scrollbar-none::-webkit-scrollbar {
  display: none;
}

.koda-modal-open {
  overflow: hidden;
  scrollbar-width: none;
}

.koda-modal-open::-webkit-scrollbar {
  display: none;
}

.koda-floating-tools {
  position: fixed;
  right: clamp(0.9rem, 2.4vw, 1.8rem);
  bottom: clamp(1rem, 2.8vw, 2rem);
  z-index: 35;
  display: flex;
  align-items: flex-end;
  gap: 0.75rem;
  pointer-events: none;
}

.koda-floating-stack {
  display: grid;
  gap: 0.68rem;
  pointer-events: auto;
}

.koda-floating-button {
  display: grid;
  place-items: center;
  width: 3.2rem;
  height: 3.2rem;
  border: 1px solid hsl(var(--line));
  border-radius: 1.05rem;
  background: hsl(var(--panel) / 0.9);
  color: hsl(var(--fg-soft));
  box-shadow: 0 14px 34px hsl(var(--fg) / 0.1);
  backdrop-filter: blur(12px);
  transition: transform 0.24s ease, border-color 0.24s ease, color 0.24s ease, background 0.24s ease;
}

.koda-floating-button:hover,
.koda-floating-button.is-active {
  transform: translateY(-2px);
  border-color: hsl(var(--line-strong));
  background: hsl(var(--panel));
  color: hsl(var(--brand));
}

.koda-floating-icon {
  width: 1.55rem;
  height: 1.55rem;
}

.koda-floating-panel {
  width: min(21rem, calc(100vw - 6.2rem));
  max-height: min(34rem, calc(100vh - 7rem));
  overflow-y: auto;
  pointer-events: auto;
  border: 1px solid hsl(var(--line));
  border-radius: 1.45rem;
  background: hsl(var(--panel) / 0.94);
  box-shadow: 0 24px 70px hsl(var(--fg) / 0.16);
  backdrop-filter: blur(16px);
  padding: 1.1rem;
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.koda-floating-panel::-webkit-scrollbar {
  display: none;
}

.koda-floating-close {
  display: grid;
  place-items: center;
  width: 1.9rem;
  height: 1.9rem;
  border: 1px solid hsl(var(--line));
  border-radius: 999px;
  color: hsl(var(--fg-soft));
  font-weight: 700;
}

.koda-floating-action {
  display: block;
  border: 1px solid hsl(var(--line));
  border-radius: 1rem;
  background: hsl(var(--panel-soft));
  padding: 0.72rem 0.9rem;
  color: hsl(var(--brand));
  font-size: 0.88rem;
  font-weight: 700;
  transition: background 0.22s ease, border-color 0.22s ease, transform 0.22s ease;
}

.koda-floating-action:hover {
  transform: translateY(-1px);
  border-color: hsl(var(--line-strong));
  background: hsl(var(--brand-soft));
}

@media (min-width: 768px) {
  .hot-tags-panel {
    margin-top: 8rem;
  }
}

.time-filter-summary {
  list-style: none;
}

.time-filter-summary::-webkit-details-marker {
  display: none;
}

.time-filter-popover {
  transform-origin: top right;
}

.time-filter-field {
  height: 2.25rem;
  width: 100%;
  border: 1px solid hsl(var(--line));
  border-radius: 0.8rem;
  background: hsl(var(--panel-soft));
  padding: 0 0.7rem;
  color: hsl(var(--fg));
  font-family: "JetBrains Mono", monospace;
  font-size: 0.78rem;
  font-weight: 600;
  outline: none;
}

.time-filter-field:focus {
  border-color: hsl(var(--line-strong));
  background: white;
  box-shadow: 0 0 0 3px hsl(var(--brand-soft) / 0.8);
}

.time-filter-chip {
  display: inline-flex;
  height: 2.25rem;
  align-items: center;
  justify-content: center;
  border: 1px solid hsl(var(--line));
  border-radius: 999px;
  background: hsl(var(--panel-soft));
  color: hsl(var(--fg-soft));
  font-size: 0.78rem;
  font-weight: 700;
  transition: border-color 0.2s ease, background 0.2s ease, color 0.2s ease, transform 0.2s ease;
}

.time-filter-chip:hover,
.time-filter-chip.is-active {
  transform: translateY(-1px);
  border-color: hsl(var(--line-strong));
  background: hsl(var(--brand-soft));
  color: hsl(var(--brand));
}

.date-calendar {
  border: 1px solid hsl(var(--line));
  border-radius: 1rem;
  background: hsl(var(--panel-soft));
  padding: 0.7rem;
}

.date-calendar-header {
  display: grid;
  grid-template-columns: 2rem 1fr 2rem;
  align-items: center;
  gap: 0.35rem;
}

.date-calendar-title {
  text-align: center;
  color: hsl(var(--fg));
  font-size: 0.9rem;
  font-weight: 700;
}

.date-calendar-nav {
  display: grid;
  place-items: center;
  width: 2rem;
  height: 2rem;
  border-radius: 999px;
  color: hsl(var(--fg-soft));
  font-size: 1.1rem;
  transition: background 0.2s ease, color 0.2s ease;
}

.date-calendar-nav:hover {
  background: white;
  color: hsl(var(--brand));
}

.date-calendar-weekdays,
.date-calendar-grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
}

.date-calendar-weekdays {
  margin-top: 0.55rem;
  color: hsl(var(--fg-soft));
  font-size: 0.68rem;
  font-weight: 700;
  text-align: center;
}

.date-calendar-weekdays span {
  padding: 0.28rem 0;
}

.date-calendar-grid {
  gap: 0.18rem;
}

.date-calendar-day {
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  border-radius: 0.72rem;
  color: hsl(var(--fg));
  font-family: "JetBrains Mono", monospace;
  font-size: 0.76rem;
  font-weight: 600;
  transition: background 0.18s ease, color 0.18s ease, transform 0.18s ease;
}

.date-calendar-day:hover {
  transform: translateY(-1px);
  background: white;
}

.date-calendar-day.is-muted {
  color: hsl(var(--fg-soft) / 0.45);
}

.date-calendar-day.is-today {
  box-shadow: inset 0 0 0 1px hsl(var(--brand) / 0.45);
}

.date-calendar-day.is-range {
  background: hsl(var(--brand-soft) / 0.72);
  color: hsl(var(--brand));
}

.date-calendar-day.is-selected {
  background: hsl(var(--brand));
  color: white;
}

.date-calendar-status {
  margin-top: 0.55rem;
  border-top: 1px solid hsl(var(--line));
  padding-top: 0.5rem;
  color: hsl(var(--fg-soft));
  font-size: 0.72rem;
  font-weight: 700;
  text-align: center;
}

@media (max-width: 640px) {
  .koda-floating-tools {
    right: 0.75rem;
    bottom: 0.85rem;
  }

  .koda-floating-button {
    width: 2.85rem;
    height: 2.85rem;
    border-radius: 0.92rem;
  }

  .koda-floating-panel {
    width: min(20rem, calc(100vw - 4.7rem));
    padding: 0.95rem;
  }
}