:root {
  --bg: #f6fbff;
  --surface: rgba(255, 255, 255, 0.78);
  --surface-strong: rgba(255, 255, 255, 0.96);
  --surface-soft: rgba(255, 255, 255, 0.64);
  --mint-100: #dff7ea;
  --mint-200: #c5f0d7;
  --mint-300: #92dfb3;
  --mint-500: #52cb63;
  --mint-600: #29b35d;
  --mint-700: #0f6c4d;
  --blue-100: #dff4ff;
  --blue-200: #bee9ff;
  --text: #16352f;
  --muted: #5d736c;
  --line: rgba(20, 60, 49, 0.1);
  --shadow: 0 30px 80px rgba(35, 95, 82, 0.12);
  --shadow-soft: 0 12px 30px rgba(40, 110, 93, 0.08);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Inter", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(239, 249, 255, 0.9), transparent 16%),
    linear-gradient(145deg, #e8f7ff 0%, #c8efff 9%, #a7e7db 18%, #95e84d 30%, #52cb63 100%);
  overflow-x: hidden;
}

html.is-loading .page-shell {
  filter: blur(16px);
  transform: scale(1.015);
  opacity: 0.2;
}

a {
  color: var(--mint-700);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

img {
  max-width: 100%;
}

.page-shell {
  width: min(1380px, calc(100% - 24px));
  margin: 8px auto 30px;
  position: relative;
  z-index: 1;
  transition: filter 620ms ease, transform 620ms ease, opacity 620ms ease;
}

.hero {
  display: grid;
  place-items: center;
  gap: 10px;
  padding: 12px 24px 6px;
  text-align: center;
}

.hero--floating {
  min-height: 148px;
}

.hero__eyebrow {
  padding: 8px 14px;
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.5);
  backdrop-filter: blur(16px);
  color: var(--mint-700);
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero__logo {
  display: block;
  width: min(100%, 690px);
  margin: 0 auto;
  filter: drop-shadow(0 18px 28px rgba(37, 127, 98, 0.18));
  animation: logoFloat 4.6s ease-in-out infinite;
}

.hero__subtitle {
  max-width: 620px;
  color: rgba(18, 71, 58, 0.84);
  font-size: 1rem;
  line-height: 1.65;
}

.intro-screen {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  background: rgba(177, 228, 238, 0.18);
  backdrop-filter: blur(22px);
  opacity: 1;
  pointer-events: none;
  transition: opacity 520ms ease, visibility 520ms ease;
  visibility: visible;
}

html:not(.is-loading) .intro-screen {
  opacity: 0;
  visibility: hidden;
}

.intro-screen__logo {
  width: min(78vw, 620px);
  filter: drop-shadow(0 20px 30px rgba(33, 121, 93, 0.18));
  animation: introLogoDrop 1s cubic-bezier(0.2, 0.9, 0.2, 1) forwards,
    logoFloat 4.6s ease-in-out infinite 1s;
}

.topnav {
  position: sticky;
  top: 10px;
  z-index: 20;
  display: flex;
  gap: 12px;
  align-items: center;
  justify-content: space-between;
  margin: 8px 0 20px;
  padding: 14px 18px;
  border: 1px solid var(--line);
  border-radius: 24px;
  backdrop-filter: blur(18px);
  background: rgba(255, 255, 255, 0.72);
  box-shadow: var(--shadow-soft);
}

.topnav__links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.topnav__links a,
.topnav__toggle {
  padding: 12px 16px;
  border: 0;
  border-radius: 999px;
  background: transparent;
  color: var(--text);
  font: inherit;
  font-weight: 500;
  transition: background 180ms ease, color 180ms ease, transform 180ms ease;
}

.topnav__links a:hover,
.topnav__links a.is-active,
.topnav__toggle:hover {
  background: linear-gradient(180deg, rgba(223, 247, 234, 0.95), rgba(210, 244, 223, 0.9));
  text-decoration: none;
  transform: translateY(-1px);
}

.topnav__toggle {
  display: none;
  cursor: pointer;
}

.layout {
  display: grid;
  grid-template-columns: minmax(0, 2.1fr) minmax(280px, 0.9fr);
  gap: 18px;
}

.content,
.sidebar-card {
  border: 1px solid var(--line);
  border-radius: 32px;
  background: var(--surface);
  box-shadow: var(--shadow);
  backdrop-filter: blur(18px);
}

.content {
  padding: 22px;
}

.content__toolbar {
  display: flex;
  gap: 14px;
  align-items: end;
  justify-content: space-between;
  margin-bottom: 18px;
}

.searchbox {
  flex: 1;
  display: grid;
  gap: 8px;
}

.searchbox span,
.content__meta,
.sidebar-card h2,
.post-card__meta,
.post-detail__meta,
.archive-year__button,
.calendar__header {
  color: var(--muted);
}

.searchbox input {
  width: 100%;
  padding: 16px 18px;
  border: 1px solid rgba(82, 203, 99, 0.16);
  border-radius: 20px;
  background: rgba(255, 255, 255, 0.88);
  font: inherit;
  box-shadow: inset 0 1px 0 rgba(255, 255, 255, 0.7);
}

.searchbox input:focus {
  outline: none;
  border-color: rgba(41, 179, 93, 0.35);
  box-shadow: 0 0 0 4px rgba(82, 203, 99, 0.08);
}

.sidebar {
  display: grid;
  gap: 18px;
  align-self: start;
}

.sidebar-card {
  padding: 20px;
}

.sidebar-card--accent {
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.7), transparent 24%),
    linear-gradient(180deg, rgba(223, 247, 234, 0.95), rgba(255, 255, 255, 0.94));
}

.quick-links,
.featured-list,
.archive-list {
  display: grid;
  gap: 10px;
}

.quick-links a,
.featured-item,
.archive-year,
.archive-post-link {
  display: block;
}

.quick-links a,
.featured-item a,
.archive-post-link,
.post-card,
.info-panel,
.page-panel,
.post-detail {
  border: 1px solid var(--line);
  border-radius: 28px;
  background: var(--surface-strong);
}

.quick-links a {
  padding: 14px 16px;
  transition: transform 180ms ease, background 180ms ease, box-shadow 180ms ease;
  box-shadow: 0 10px 18px rgba(50, 114, 95, 0.04);
}

.quick-links a:hover {
  transform: translateY(-2px);
  background: linear-gradient(180deg, #fbfffd, #f1fff6);
  box-shadow: 0 14px 22px rgba(43, 109, 89, 0.08);
}

.calendar {
  display: grid;
  gap: 14px;
}

.calendar__grid {
  display: grid;
  grid-template-columns: repeat(7, minmax(0, 1fr));
  gap: 8px;
}

.calendar__weekday,
.calendar__day {
  display: grid;
  place-items: center;
  min-height: 40px;
  border-radius: 14px;
}

.calendar__weekday {
  font-size: 0.82rem;
  color: var(--muted);
}

.calendar__day {
  background: rgba(82, 203, 99, 0.08);
  border: 1px solid rgba(82, 203, 99, 0.08);
}

.calendar__day--today {
  background: var(--mint-500);
  color: white;
  font-weight: 700;
}

.post-list {
  display: grid;
  gap: 18px;
}

.post-card {
  padding: 22px;
  transition: transform 180ms ease, box-shadow 180ms ease, border-color 180ms ease;
  position: relative;
  overflow: hidden;
}

.post-card:hover {
  transform: translateY(-4px);
  border-color: rgba(82, 203, 99, 0.18);
  box-shadow: 0 22px 34px rgba(53, 121, 99, 0.1);
}

.post-card::after {
  content: "";
  position: absolute;
  width: 180px;
  height: 180px;
  right: -60px;
  top: -72px;
  border-radius: 32px;
  background: radial-gradient(circle, rgba(190, 244, 208, 0.35), transparent 70%);
  pointer-events: none;
}

.post-card__content {
  display: grid;
  grid-template-columns: 1fr;
  gap: 14px;
}

.post-card__image {
  overflow: hidden;
  border-radius: 22px;
}

.post-card__image img {
  display: block;
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.post-card h2,
.post-detail h1,
.page-panel h1,
.info-panel h1,
.content__intro h1 {
  margin: 0 0 10px;
  font-family: "Sora", sans-serif;
  font-weight: 700;
  line-height: 1.08;
  letter-spacing: -0.03em;
}

.post-card p,
.featured-item p,
.info-panel p,
.contact-box p {
  margin: 0;
  line-height: 1.7;
}

.post-card__actions,
.post-detail__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 14px;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 12px 16px;
  border-radius: 999px;
  background: linear-gradient(180deg, var(--mint-500), var(--mint-600));
  color: white;
  font-weight: 600;
  box-shadow: 0 14px 22px rgba(67, 181, 141, 0.2);
}

.button--ghost {
  background: rgba(223, 247, 234, 0.85);
  color: var(--mint-700);
  box-shadow: none;
}

.button:hover {
  text-decoration: none;
  filter: brightness(0.98);
}

.post-detail,
.page-panel,
.info-panel {
  padding: 24px;
}

.post-detail__body,
.page-panel__body,
.info-panel__body {
  line-height: 1.8;
}

.post-detail__body img,
.page-panel__body img,
.info-panel__body img {
  border-radius: 18px;
}

.featured-item,
.archive-year {
  padding: 14px;
}

.featured-item {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.92);
}

.featured-item p {
  margin-top: 8px;
  color: var(--muted);
}

.archive-year__button {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: 0;
  border: 0;
  background: transparent;
  font: inherit;
  cursor: pointer;
}

.archive-year__posts {
  display: none;
  gap: 8px;
  margin-top: 12px;
}

.archive-year.is-open .archive-year__posts {
  display: grid;
}

.archive-post-link {
  padding: 10px 12px;
}

.empty-state {
  padding: 24px;
  border: 1px dashed rgba(67, 181, 141, 0.35);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.65);
}

.content__intro {
  display: grid;
  grid-template-columns: minmax(0, 1.4fr) minmax(260px, 0.8fr);
  gap: 18px;
  margin-bottom: 22px;
  padding: 24px;
  border: 1px solid var(--line);
  border-radius: 30px;
  background:
    radial-gradient(circle at top right, rgba(255, 255, 255, 0.8), transparent 24%),
    linear-gradient(180deg, rgba(255, 255, 255, 0.72), rgba(255, 255, 255, 0.52));
}

.content__kicker {
  margin: 0 0 10px;
  color: var(--mint-700);
  font-size: 0.8rem;
  font-weight: 700;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.content__intro-copy p:last-child {
  margin: 0;
  color: var(--muted);
  line-height: 1.75;
}

.content__intro-stats {
  display: grid;
  gap: 12px;
}

.stat-tile {
  padding: 18px;
  border: 1px solid rgba(82, 203, 99, 0.12);
  border-radius: 24px;
  background: rgba(255, 255, 255, 0.86);
}

.stat-tile strong {
  display: block;
  margin-bottom: 6px;
  font-family: "Sora", sans-serif;
  font-size: 1.6rem;
  line-height: 1;
}

.stat-tile span {
  color: var(--muted);
  font-size: 0.95rem;
}

@keyframes logoFloat {
  0%,
  100% {
    transform: translateY(0px) rotate(0deg);
  }
  25% {
    transform: translateY(-8px) rotate(-0.6deg);
  }
  50% {
    transform: translateY(6px) rotate(0.6deg);
  }
  75% {
    transform: translateY(-4px) rotate(-0.35deg);
  }
}

@keyframes introLogoDrop {
  0% {
    opacity: 0;
    transform: translateY(-120px) scale(0.82);
  }
  65% {
    opacity: 1;
    transform: translateY(16px) scale(1.03);
  }
  100% {
    opacity: 1;
    transform: translateY(0) scale(1);
  }
}

.page-panel__body ul,
.page-panel__body ol,
.post-detail__body ul,
.post-detail__body ol,
.info-panel__body ul,
.info-panel__body ol {
  padding-left: 20px;
}

@media (max-width: 1040px) {
  .layout {
    grid-template-columns: 1fr;
  }

  .sidebar {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .content__intro {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 760px) {
  .page-shell {
    width: min(100% - 16px, 100%);
  }

  .hero {
    min-height: 140px;
  }

  .topnav {
    align-items: stretch;
    flex-direction: column;
  }

  .topnav__toggle {
    display: inline-flex;
  }

  .topnav__links {
    display: none;
    flex-direction: column;
  }

  .topnav__links.is-open {
    display: flex;
  }

  .content {
    padding: 16px;
  }

  .content__toolbar {
    flex-direction: column;
    align-items: stretch;
  }

  .sidebar {
    grid-template-columns: 1fr;
  }
}