:root {
  color-scheme: light;
  --ink: #563a25;
  --brown: #6a4428;
  --soft-brown: #a56c3e;
  --green: #5e8c2d;
  --deep-green: #2f6f3e;
  --orange: #d56d2c;
  --blue: #4f8aa9;
  --paper: #fff8e9;
  --cream: #fff0cf;
  --line: rgba(112, 72, 38, 0.34);
  --shadow: 0 16px 40px rgba(97, 62, 31, 0.14);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-width: 320px;
  background:
    radial-gradient(circle at 15% 8%, rgba(255, 255, 255, 0.8), transparent 16rem),
    radial-gradient(circle at 84% 16%, rgba(255, 221, 145, 0.32), transparent 19rem),
    linear-gradient(180deg, #fff4d8 0%, #fff9ea 50%, #fff2d4 100%);
  color: var(--ink);
  font-family:
    "Hiragino Maru Gothic ProN", "Hiragino Sans", "Yu Gothic", "YuGothic",
    Meiryo, system-ui, sans-serif;
  line-height: 1.75;
}

body::before {
  position: fixed;
  inset: 0;
  z-index: -1;
  pointer-events: none;
  content: "";
  opacity: 0.36;
  background-image:
    linear-gradient(rgba(111, 77, 43, 0.08) 1px, transparent 1px),
    linear-gradient(90deg, rgba(111, 77, 43, 0.06) 1px, transparent 1px);
  background-size: 34px 34px;
  mask-image: linear-gradient(#000, transparent 78%);
}

a {
  color: inherit;
}

img {
  max-width: 100%;
}

.page-shell {
  width: min(100%, 1420px);
  margin: 0 auto;
  padding: clamp(1rem, 2.2vw, 2rem);
}

.site-header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 1.25rem;
  margin-bottom: clamp(1rem, 2vw, 1.8rem);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.75rem;
  text-decoration: none;
}

.leaf-logo {
  position: relative;
  display: inline-block;
  flex: 0 0 auto;
  width: clamp(2rem, 4vw, 3rem);
  height: clamp(1.55rem, 3vw, 2.35rem);
  margin-left: 0.35rem;
  border: 0.18rem solid #5f4a22;
  border-radius: 80% 0 80% 0;
  background: linear-gradient(135deg, #9ec84f, #5f9c37);
  transform: rotate(-22deg);
  box-shadow: inset 0 0 0 0.18rem rgba(255, 255, 255, 0.22);
}

.leaf-logo::after {
  position: absolute;
  left: 26%;
  top: 48%;
  width: 58%;
  height: 0.16rem;
  border-radius: 999px;
  background: #44672f;
  content: "";
  transform: rotate(-30deg);
}

.brand-text {
  display: grid;
  gap: 0.1rem;
}

.brand-name {
  color: var(--brown);
  font-size: clamp(2rem, 5.4vw, 4rem);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 0.95;
  text-shadow: 0 2px 0 rgba(255, 255, 255, 0.72);
}

.brand-name span {
  color: var(--orange);
}

.brand-subtitle {
  color: #5b3922;
  font-size: clamp(0.95rem, 1.7vw, 1.3rem);
  font-weight: 800;
  letter-spacing: 0;
  text-align: center;
}

.site-nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.4rem;
  justify-content: flex-end;
  padding: 0.5rem;
  border: 0.18rem solid rgba(188, 134, 73, 0.68);
  border-radius: 1.2rem;
  background: rgba(255, 250, 235, 0.84);
  box-shadow: 0 4px 0 rgba(149, 93, 42, 0.11);
}

.site-nav a {
  display: inline-flex;
  min-height: 2.4rem;
  align-items: center;
  justify-content: center;
  padding: 0.35rem 0.75rem;
  border-radius: 0.8rem;
  color: var(--brown);
  font-weight: 900;
  text-decoration: none;
  white-space: nowrap;
}

.site-nav a:hover {
  background: #fff0d7;
  color: var(--orange);
}

.hero-room {
  position: relative;
  display: grid;
  min-height: 510px;
  grid-template-columns: 1fr minmax(20rem, 0.9fr) minmax(17rem, 0.72fr);
  align-items: center;
  gap: clamp(1rem, 2vw, 1.6rem);
  margin-bottom: 1.3rem;
  overflow: hidden;
}

.hero-room::after {
  position: absolute;
  left: 12%;
  right: 6%;
  bottom: 0;
  z-index: -1;
  height: 7rem;
  border: 0.18rem solid rgba(119, 75, 33, 0.28);
  border-bottom: 0;
  border-radius: 50% 50% 0 0 / 38% 38% 0 0;
  background: linear-gradient(180deg, #d59551, #bb7437);
  content: "";
}

.window-scene {
  position: absolute;
  left: 0;
  top: 3rem;
  z-index: -1;
  width: min(19vw, 16rem);
  min-width: 9rem;
  height: 22rem;
  border: 0.18rem solid rgba(111, 70, 34, 0.5);
  border-radius: 0.35rem;
  background: linear-gradient(#a8ddff 0 52%, #9dd37d 52% 100%);
  box-shadow: inset 0 0 0 0.35rem rgba(255, 248, 220, 0.55);
}

.window-scene::before,
.window-scene::after {
  position: absolute;
  background: rgba(111, 70, 34, 0.52);
  content: "";
}

.window-scene::before {
  left: 50%;
  top: 0;
  width: 0.16rem;
  height: 100%;
}

.window-scene::after {
  left: 0;
  top: 50%;
  width: 100%;
  height: 0.16rem;
}

.sun {
  position: absolute;
  right: 1.4rem;
  top: 1.2rem;
  width: 2.4rem;
  height: 2.4rem;
  border-radius: 50%;
  background: #ffe082;
}

.hill {
  position: absolute;
  bottom: 0;
  height: 7rem;
  border-radius: 80% 80% 0 0;
  background: #6eb65e;
}

.hill-one {
  left: -1rem;
  width: 70%;
}

.hill-two {
  right: -1.2rem;
  width: 78%;
  background: #86c66a;
}

.curtain {
  position: absolute;
  top: -0.4rem;
  width: 2rem;
  height: 23rem;
  border: 0.14rem solid rgba(167, 125, 56, 0.36);
  background: repeating-linear-gradient(
    90deg,
    #fff8d6,
    #fff8d6 0.55rem,
    #c7d98a 0.55rem,
    #c7d98a 1.05rem
  );
}

.curtain-left {
  left: -1.4rem;
}

.curtain-right {
  right: -1.4rem;
}

.plant {
  position: absolute;
  left: 1rem;
  bottom: -1.2rem;
  width: 3.2rem;
  height: 3.2rem;
  border-radius: 0.2rem 0.2rem 0.7rem 0.7rem;
  background: #b76b3a;
}

.plant::before {
  position: absolute;
  left: 0.15rem;
  right: 0.15rem;
  bottom: 2.45rem;
  height: 4rem;
  border-radius: 4rem 4rem 0 0;
  background:
    radial-gradient(ellipse at 23% 58%, #4e9341 0 22%, transparent 24%),
    radial-gradient(ellipse at 52% 36%, #65a94f 0 25%, transparent 27%),
    radial-gradient(ellipse at 78% 60%, #3f7f3c 0 22%, transparent 24%);
  content: "";
}

.welcome-card {
  position: relative;
  max-width: 33rem;
  margin-left: clamp(3rem, 11vw, 10rem);
  padding: clamp(1.3rem, 3vw, 2.3rem);
  border: 0.18rem solid rgba(199, 160, 107, 0.7);
  border-radius: 2.4rem;
  background: rgba(255, 253, 244, 0.92);
  box-shadow: var(--shadow);
}

.welcome-card::after {
  position: absolute;
  right: -1.35rem;
  top: 45%;
  width: 2.2rem;
  height: 2rem;
  border-right: 0.18rem solid rgba(199, 160, 107, 0.7);
  border-bottom: 0.18rem solid rgba(199, 160, 107, 0.7);
  background: rgba(255, 253, 244, 0.92);
  content: "";
  transform: rotate(-28deg);
}

.welcome-small {
  margin: 0;
  color: var(--brown);
  font-size: clamp(1.35rem, 2.6vw, 2.2rem);
  font-weight: 900;
  letter-spacing: 0;
}

h1,
h2,
p {
  overflow-wrap: anywhere;
}

h1 {
  margin: 0.1rem 0 1rem;
  color: var(--green);
  font-size: clamp(2rem, 4.6vw, 3.8rem);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.12;
}

.welcome-card p:not(.welcome-small) {
  margin: 0;
  color: #4f3421;
  font-size: clamp(0.98rem, 1.35vw, 1.16rem);
  font-weight: 800;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  margin-top: 1.4rem;
}

.button {
  display: inline-flex;
  min-height: 2.75rem;
  align-items: center;
  justify-content: center;
  padding: 0.45rem 1rem;
  border: 0.14rem solid transparent;
  border-radius: 999px;
  font-weight: 900;
  text-decoration: none;
  box-shadow: 0 4px 0 rgba(87, 56, 30, 0.13);
}

.button.primary {
  background: var(--green);
  color: #fffdf2;
}

.button.secondary {
  border-color: rgba(165, 108, 62, 0.45);
  background: #fffaf0;
  color: var(--brown);
}

.hero-art {
  position: relative;
  align-self: end;
  overflow: hidden;
  min-height: 24rem;
  border: 0.2rem solid rgba(98, 60, 29, 0.5);
  border-radius: 2.2rem 2.2rem 1rem 1rem;
  background: #ffe4b6;
  box-shadow: var(--shadow);
}

.hero-art img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 24rem;
  object-fit: cover;
  object-position: 77% 7%;
  transform: scale(1.08);
}

.hero-art::after {
  position: absolute;
  inset: auto 1rem 1rem;
  padding: 0.55rem 0.85rem;
  border-radius: 1rem;
  background: rgba(255, 248, 225, 0.92);
  color: var(--brown);
  content: "最新の漫画を公開中";
  font-weight: 900;
  text-align: center;
}

.news-board {
  position: relative;
  align-self: start;
  margin-top: 4.1rem;
  padding: 1.25rem;
  border: 0.35rem solid #8a5c2c;
  border-radius: 0.45rem;
  background: #fff0c6;
  box-shadow:
    inset 0 0 0 0.18rem rgba(255, 255, 255, 0.55),
    var(--shadow);
}

.news-board::before {
  position: absolute;
  left: 50%;
  top: -2.35rem;
  width: 5.5rem;
  height: 2.4rem;
  border-top: 0.16rem solid #75502c;
  border-left: 0.16rem solid #75502c;
  content: "";
  transform: translateX(-50%) rotate(45deg);
  transform-origin: center;
}

.news-board h2 {
  margin: 0 0 0.7rem;
  color: var(--brown);
  font-size: clamp(1.45rem, 2vw, 1.85rem);
  font-weight: 900;
  letter-spacing: 0;
  text-align: center;
}

.news-board ol {
  display: grid;
  gap: 0.75rem;
  margin: 0;
  padding: 0;
  list-style: none;
}

.news-board li {
  display: grid;
  gap: 0.1rem;
  padding-bottom: 0.65rem;
  border-bottom: 1px dashed rgba(111, 70, 34, 0.32);
  font-weight: 800;
}

.news-board li:last-child {
  border-bottom: 0;
  padding-bottom: 0;
}

.news-board time {
  color: #9c5c28;
  font-weight: 900;
}

.menu-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: clamp(0.9rem, 2vw, 1.4rem);
  margin: -0.5rem auto 2.4rem;
}

.feature-card {
  position: relative;
  display: grid;
  min-height: 13.5rem;
  grid-template-columns: minmax(8rem, 0.5fr) minmax(0, 1fr);
  grid-template-rows: auto 1fr;
  gap: 0.7rem 1rem;
  overflow: hidden;
  padding: 1.1rem 3rem 1.1rem 1.1rem;
  border: 0.16rem solid rgba(160, 104, 62, 0.42);
  border-radius: 0.9rem;
  background: rgba(255, 250, 236, 0.88);
  box-shadow: 0 6px 0 rgba(141, 92, 43, 0.12);
  text-decoration: none;
}

.feature-card:hover {
  transform: translateY(-2px);
}

.manga-card {
  background: linear-gradient(135deg, #fff0e7, #fffaf0);
  border-color: rgba(201, 110, 75, 0.5);
}

.app-card {
  background: linear-gradient(135deg, #e9f5ff, #fffaf0);
  border-color: rgba(79, 138, 169, 0.46);
}

.card-title {
  grid-column: 1 / -1;
  color: #994832;
  font-size: clamp(1.35rem, 2.5vw, 2rem);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.2;
  text-align: center;
}

.app-card .card-title {
  color: #2f6f90;
}

.card-visual {
  display: block;
  overflow: hidden;
  min-height: 7.2rem;
  border: 0.14rem solid rgba(110, 73, 40, 0.28);
  border-radius: 0.75rem;
  background: #fff;
}

.card-visual img {
  display: block;
  width: 100%;
  height: 100%;
  min-height: 7.2rem;
  object-fit: cover;
  object-position: 74% 7%;
}

.app-visual {
  display: grid;
  place-items: center;
  background:
    linear-gradient(180deg, #9fd7eb, #eff9ff 62%, #d8efc9 63%),
    #e9f5ff;
}

.screen {
  display: grid;
  width: 7.2rem;
  height: 5rem;
  gap: 0.45rem;
  padding: 0.75rem;
  border: 0.25rem solid #5b4536;
  border-radius: 0.45rem;
  background: #263b33;
  box-shadow: 0 0.6rem 0 #8a6d50;
}

.screen span {
  height: 0.42rem;
  border-radius: 999px;
  background: #9ad36d;
}

.screen span:nth-child(2) {
  width: 78%;
}

.screen span:nth-child(3) {
  width: 55%;
}

.card-text {
  align-self: center;
  color: #4c3320;
  font-size: clamp(0.96rem, 1.35vw, 1.12rem);
  font-weight: 800;
}

.card-arrow {
  position: absolute;
  right: 1rem;
  bottom: 0.85rem;
  color: #b6502e;
  font-size: 2.6rem;
  font-weight: 900;
  line-height: 1;
}

.app-card .card-arrow {
  color: #2f6f90;
}

.manga-reader {
  padding: clamp(2.6rem, 5vw, 4rem) 0 1.5rem;
}

.section-title {
  margin-bottom: 1rem;
}

.section-title p {
  margin: 0 0 0.25rem;
  color: var(--orange);
  font-size: 0.9rem;
  font-weight: 900;
  letter-spacing: 0;
}

.section-title h2 {
  margin: 0;
  color: var(--green);
  font-size: clamp(2.2rem, 5vw, 4rem);
  font-weight: 900;
  letter-spacing: 0;
  line-height: 1.1;
}

.manga-sheet {
  width: min(100%, 62rem);
  margin: 0 auto;
}

.manga-frame {
  position: relative;
  overflow: hidden;
  padding: clamp(0.55rem, 1.5vw, 1rem);
  border: 0.18rem solid rgba(117, 75, 42, 0.34);
  border-radius: 0.8rem;
  background: rgba(255, 253, 246, 0.95);
  box-shadow: var(--shadow);
}

.manga-frame img {
  display: block;
  width: 100%;
  border: 0.12rem solid rgba(61, 42, 26, 0.22);
  border-radius: 0.35rem;
  background: #fff;
}

.image-fallback {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 0.7rem;
  padding: 2rem;
  background: #fff8e9;
  text-align: center;
}

.image-fallback[hidden] {
  display: none;
}

.image-fallback p {
  margin: 0;
  color: var(--brown);
  font-weight: 900;
}

.image-fallback a {
  color: var(--deep-green);
  font-weight: 900;
}

.site-footer {
  display: grid;
  gap: 0.45rem;
  justify-items: center;
  padding: 2rem 1rem 0.5rem;
  color: #5d3d25;
  text-align: center;
}

.site-footer p {
  margin: 0;
  padding: 0.7rem 1.2rem;
  border: 0.14rem solid rgba(199, 160, 107, 0.7);
  border-radius: 1.2rem;
  background: rgba(255, 253, 244, 0.82);
  font-weight: 900;
}

.site-footer small {
  font-weight: 800;
}

@media (max-width: 1040px) {
  .site-header {
    align-items: stretch;
    flex-direction: column;
  }

  .site-nav {
    justify-content: center;
  }

  .hero-room {
    grid-template-columns: minmax(0, 1fr) minmax(17rem, 0.72fr);
  }

  .welcome-card {
    margin-left: clamp(2rem, 12vw, 8rem);
  }

  .hero-art {
    grid-column: 1 / 2;
    min-height: 18rem;
  }

  .hero-art img {
    min-height: 18rem;
  }

  .news-board {
    grid-column: 2 / 3;
    grid-row: 1 / 3;
  }
}

@media (max-width: 780px) {
  .page-shell {
    padding: 0.85rem;
  }

  .brand {
    align-items: flex-start;
  }

  .brand-subtitle {
    text-align: left;
  }

  .site-nav {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    width: 100%;
    border-radius: 1rem;
  }

  .site-nav a {
    padding-inline: 0.3rem;
  }

  .hero-room {
    min-height: auto;
    grid-template-columns: 1fr;
    gap: 1rem;
  }

  .hero-room::after,
  .window-scene {
    display: none;
  }

  .welcome-card {
    order: 1;
    grid-column: auto;
    grid-row: auto;
    margin-left: 0;
    border-radius: 1.45rem;
  }

  .welcome-card::after {
    display: none;
  }

  .hero-art {
    order: 2;
    grid-column: auto;
    grid-row: auto;
    min-height: 13rem;
    border-radius: 1rem;
  }

  .hero-art img {
    min-height: 13rem;
  }

  .news-board {
    order: 3;
    grid-column: auto;
    grid-row: auto;
    margin-top: 0.6rem;
  }

  .news-board::before {
    display: none;
  }

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

  .feature-card {
    min-height: 12rem;
    grid-template-columns: minmax(7rem, 0.45fr) minmax(0, 1fr);
  }
}

@media (max-width: 480px) {
  .brand-name {
    font-size: clamp(1.6rem, 10.5vw, 3rem);
  }

  .welcome-card {
    padding: 1.05rem;
  }

  .hero-actions {
    display: grid;
  }

  .button {
    width: 100%;
  }

  .feature-card {
    grid-template-columns: 1fr;
    padding-right: 1.2rem;
  }

  .card-title {
    text-align: left;
  }

  .card-visual {
    min-height: 8rem;
  }

  .card-arrow {
    right: 0.8rem;
    bottom: 0.45rem;
  }
}