/* ===== base / tokens ===== */
:root {
  /* colors */
  --color-primary: #00995a;
  --color-accent: #f3ed50;
  --color-accent-text: #d82d2c;
  --color-text: #000000;
  --color-text-inverse: #ffffff;
  --color-bg: #ffffff;
  --color-line: #000000;
  --color-border: #000000;

  /* typography */
  --font-serif: "Zen Old Mincho", "Noto Serif JP", "Hiragino Mincho ProN", "Yu Mincho", "MS PMincho", serif;
  --font-sans: "Zen Kaku Gothic New", "Noto Sans JP", "Hiragino Kaku Gothic ProN", "Yu Gothic", "Meiryo", sans-serif;

  --fs-16: 16px;
  --fs-20: 20px;
  --fs-24: 24px;
  --fs-32: 32px;
  --fs-36: 36px;
  --fs-48: 48px;

  --lh-130: 1.3;
  --lh-150: 1.5;
  --lh-180: 1.8;

  --fw-regular: 400;
  --fw-medium: 500;
  --fw-bold: 700;

  /* spacing */
  --space-4: 4px;
  --space-8: 8px;
  --space-10: 10px;
  --space-12: 12px;
  --space-15: 15px;
  --space-16: 16px;
  --space-20: 20px;
  --space-24: 24px;
  --space-30: 30px;
  --space-40: 40px;
  --space-60: 60px;
  --space-80: 80px;

  /* radius / shadow */
  --radius-8: 8px;
  --radius-40: 40px;
  --shadow-book: 3px 3px 3px rgba(0, 0, 0, 0.25);

  /* layout */
  --page-max: 1200px;
  --nav-height: 62px;
}

@media (min-width: 640px) {
  :root {
    --page-max: 1200px;
    --nav-height: 70px;
  }
}

/* ===== reset (minimal) ===== */
*,
*::before,
*::after {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

img {
  display: block;
  max-width: 100%;
  height: auto;
}

ul,
ol {
  margin: 0;
  padding: 0;
  list-style: none;
}

a {
  color: inherit;
  text-decoration: none;
}

button {
  font: inherit;
  background: none;
  border: none;
  padding: 0;
  cursor: pointer;
}

body {
  font-family: var(--font-sans);
  color: var(--color-text);
  background: var(--color-bg);
  line-height: var(--lh-150);
  word-break: break-word;
  overflow-wrap: anywhere;
  line-break: strict;
}

body.is-menu-open {
  overflow: hidden;
}

/* ===== utilities ===== */
.section-title {
  font-family: var(--font-serif);
  font-size: var(--fs-32);
  line-height: var(--lh-130);
  color: var(--color-primary);
  font-weight: var(--fw-regular);
  text-align: center;
}

.section-title__text {
  display: inline;
  background-image: linear-gradient(transparent calc(100% - 12px), #f3ed50 0);
  background-size: 100% 100%;
  background-repeat: no-repeat;
  -webkit-box-decoration-break: clone;
  box-decoration-break: clone;
}

/* ===== header ===== */
.header {
  position: relative;
  height: var(--nav-height);
}

.header__nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  padding: var(--space-16) var(--space-20);
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  background: transparent;
  z-index: 900;
  gap: var(--space-30);
}


.header__menu {
  display: none;
  gap: var(--space-30);
}

.header__menu-link {
  font-family: var(--font-serif);
  font-size: var(--fs-20);
  line-height: var(--lh-150);
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

.header__menu-toggle {
  display: inline-flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: var(--space-4);
  width: 60px;
  height: 60px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-8);
  background: var(--color-bg);
  transition: border-color 0.2s ease, color 0.2s ease;
  color: var(--color-text);
}

.header__menu-toggle:focus-visible,
.header__menu-link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

.header__menu-link:hover,
.header__menu-link:focus-visible {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 6px;
}

@media (min-width: 640px) {
  .header__nav {
    justify-content: center;
    width: 100%;
    max-width: none;
    margin: 0;
    padding: var(--space-20) var(--space-80);
    background: var(--color-bg);
    border-bottom: 1px solid #000000;
  }

  .header__menu {
    display: flex;
  }

  .header__menu-toggle {
    display: none;
  }
}

/* ===== mobile menu ===== */
.mobile-menu {
  --menu-slide-duration: 0.5s;
  position: fixed;
  inset: 0;
  background: transparent;
  z-index: 1000;
  visibility: hidden;
  pointer-events: none;
  transition: visibility 0s linear var(--menu-slide-duration);
}

.mobile-menu[hidden] {
  display: none;
}

.mobile-menu__panel {
  position: absolute;
  right: 0;
  top: 0;
  width: 300px;
  height: 100%;
  background: var(--color-bg);
  box-shadow: -6px 0 16px rgba(0, 0, 0, 0.12);
  padding: 55px var(--space-20) var(--space-20);
  overflow-y: auto;
  transform: translateX(100%);
  transition: transform var(--menu-slide-duration) ease;
}

.mobile-menu__close {
  position: absolute;
  right: var(--space-20);
  top: var(--space-16);
  width: 60px;
  height: 60px;
  border: 1px solid var(--color-border);
  border-radius: var(--radius-8);
  background: var(--color-bg);
  display: grid;
  place-items: center;
  color: var(--color-text);
  transition: border-color 0.2s ease, color 0.2s ease;
}

.mobile-menu__close-icon {
  display: block;
}

.mobile-menu.is-open {
  visibility: visible;
  pointer-events: auto;
  transition-delay: 0s;
}

.mobile-menu.is-open .mobile-menu__panel {
  transform: translateX(0);
}

.mobile-menu__list {
  margin-top: 97px;
  display: flex;
  flex-direction: column;
  gap: var(--space-30);
  font-family: var(--font-serif);
  font-size: var(--fs-20);
  line-height: var(--lh-150);
  transform: translateY(-50px);
}

.mobile-menu__link {
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

.mobile-menu__link:hover,
.mobile-menu__link:focus-visible {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 2px;
  text-underline-offset: 6px;
}

.mobile-menu__close:focus-visible,
.mobile-menu__link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

@media (min-width: 640px) {
  .mobile-menu {
    display: none;
  }
}

/* ===== hero ===== */
.main {
  padding-top: 4px;
}

.main section {
  scroll-margin-top: calc(var(--nav-height) + 16px);
}

.hero {
  position: relative;
  padding: 120px var(--space-20) var(--space-40);
  text-align: center;
}

.hero__bg picture,
.hero__bg img {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
}

.hero__bg img {
  object-fit: cover;
  opacity: 0.5;
}

.hero__content {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-60);
}

.hero__title-wrap {
  display: flex;
  flex-direction: column;
  gap: var(--space-20);
  width: 331px;
  align-items: center;
  margin: 0 auto;
}

.hero__author {
  font-size: var(--fs-16);
  line-height: var(--lh-150);
  letter-spacing: -0.304px;
  margin: 0;
  font-weight: var(--fw-medium);
}

.hero__illustration {
  margin: 0 0 calc(var(--space-20) - var(--space-60));
  font-size: 16px;
  color: #000;
  background-color: #ffffff;
}

.hero__catch {
  background: var(--color-accent);
  padding: var(--space-10) var(--space-20);
  text-align: center;
  width: 100%;
}

.hero__catch-main {
  margin: 0 0 var(--space-8);
  font-family: var(--font-serif);
  font-size: var(--fs-36);
  line-height: 1;
  color: var(--color-accent-text);
  font-weight: var(--fw-regular);
}

.hero__catch-main-br {
  display: inline;
}

.hero__catch-sub {
  margin: 0;
  font-size: var(--fs-20);
  color: var(--color-primary);
  font-weight: var(--fw-medium);
}

.hero__catch-sub-br {
  display: inline;
}

@media (min-width: 640px) {
  .hero {
    padding: 180px 0 var(--space-80);
  }

  .hero__content {
    gap: var(--space-80);
  }

  .hero__title-wrap {
    width: 600px;
    gap: 40px;
  }

  .hero__title-wrap img {
    transform: scale(1.5);
    transform-origin: center;
  }

  .hero__author {
    font-size: var(--fs-24);
    letter-spacing: -0.456px;
  }

  .hero__catch {
    width: auto;
    padding: var(--space-10) var(--space-20);
  }

  .hero__catch-main {
    font-size: var(--fs-48);
  }

  .hero__catch-main-br {
    display: none;
  }

  .hero__catch-sub {
    font-size: var(--fs-24);
  }

  .hero__catch-sub-br {
    display: none;
  }
}

/* ===== kakukai ===== */
.kakukai {
  padding: var(--space-40) var(--space-20);
  background: #f3ed50;
  display: flex;
  flex-direction: column;
  gap: var(--space-40);
  align-items: center;
}

.kakukai__title {
  text-align: center;
  margin: 0;
  font-family: var(--font-serif);
  font-size: var(--fs-36);
  line-height: var(--lh-150);
  color: var(--color-primary);
  font-weight: var(--fw-regular);
}

.kakukai__title-br {
  display: inline;
}

.kakukai__lead {
  display: flex;
  flex-direction: column;
  gap: var(--space-8);
  max-width: 335px;
  margin: 0;
  text-align: center;
}

.kakukai__lead-text {
  margin: 0;
  font-size: var(--fs-16);
  line-height: var(--lh-180);
  color: var(--color-accent-text);
  font-weight: var(--fw-medium);
}

.kakukai__message {
  text-align: center;
  color: var(--color-accent-text);
}

.kakukai__message-strong {
  margin: 0 0 var(--space-8);
  font-size: var(--fs-24);
  font-weight: var(--fw-bold);
  line-height: var(--lh-150);
}

.kakukai__message-strong-br {
  display: inline;
}

.kakukai__message-text {
  margin: 0;
  font-size: var(--fs-16);
  line-height: var(--lh-180);
}

.kakukai__comments {
  display: flex;
  flex-direction: column;
  gap: var(--space-20);
  width: 100%;
  max-width: 335px;
}

@media (min-width: 640px) {
  .kakukai {
    padding: var(--space-80) 120px;
    gap: var(--space-60);
  }

  .kakukai__lead {
    max-width: 780px;
    gap: var(--space-8);
  }

  .kakukai__title {
    font-size: 48px;
  }

  .kakukai__title-br {
    display: none;
  }

  .kakukai__lead-text {
    font-size: var(--fs-24);
  }

  .kakukai__message-strong {
    font-size: 36px;
  }

  .kakukai__message-strong-br {
    display: none;
  }

  .kakukai__message-text {
    font-size: var(--fs-24);
  }

  .kakukai__comments {
    max-width: 500px;
  }
}

/* ===== book ===== */
.book {
  padding: var(--space-40) var(--space-20);
}

.book__title {
  text-align: center;
  margin: 0 0 var(--space-40);
  font-family: var(--font-serif);
  color: var(--color-primary);
}

.book__content {
  display: flex;
  flex-direction: column;
  gap: 0;
  align-items: center;
}

.book__cover img {
  box-shadow: var(--shadow-book);
}

.book__info {
  display: flex;
  flex-direction: column;
  gap: var(--space-16);
  padding: var(--space-20);
  width: 100%;
  max-width: 375px;
  color: #1e1e1e;
}

.book__name {
  margin: 0;
  font-size: var(--fs-32);
  line-height: var(--lh-150);
  letter-spacing: -0.608px;
  font-weight: var(--fw-medium);
}

.book__author,
.book__release,
.book__description {
  margin: 0;
  font-size: var(--fs-16);
  line-height: var(--lh-180);
}

.book__description {
  line-height: var(--lh-150);
}

.book__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  height: 58px;
  padding: 0 48px;
  border-radius: var(--radius-40);
  background: var(--color-text);
  border: 2px solid var(--color-text);
  color: var(--color-text-inverse);
  font-size: var(--fs-20);
  line-height: var(--lh-180);
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.book__cta:hover,
.book__cta:focus-visible {
  background: var(--color-bg);
  color: var(--color-text);
}

.book__cta:active {
  background: #222222;
  border-color: #222222;
  color: var(--color-text-inverse);
}

.book__cta:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

@media (min-width: 900px) {
  .book {
    padding: var(--space-80) 120px;
  }

  .book__content {
    flex-direction: row;
    align-items: center;
    gap: 80px;
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
  }

  .book__cover {
    flex: 0 0 280px;
  }

  .book__info {
    max-width: 650px;
    padding: 0;
    align-items: flex-start;
  }
}

/* ===== profile ===== */
.profile {
  padding: var(--space-40) var(--space-20);
  background: #f2f1ff;
}

.profile__title {
  text-align: center;
  margin: 0 0 var(--space-40);
  font-family: var(--font-serif);
  color: var(--color-primary);
}

.profile__content {
  display: flex;
  flex-direction: column;
  gap: var(--space-10);
  padding: 0 var(--space-20);
  align-items: center;
}

.profile__name {
  margin: 0;
  font-size: var(--fs-20);
  line-height: var(--lh-180);
  font-weight: var(--fw-bold);
}

.profile__text {
  margin: 0;
  line-height: var(--lh-150);
}

@media (min-width: 640px) {
  .profile {
    padding: var(--space-80) 120px;
  }

  .profile__content {
    max-width: 800px;
    margin: 0 auto;
    padding: 0;
  }
}

/* ===== shohyo ===== */
.shohyo {
  padding: var(--space-40) var(--space-20);
  text-align: center;
  background: var(--color-accent);
}

.shohyo__title {
  margin: 0 0 var(--space-40);
  font-family: var(--font-serif);
  color: var(--color-primary);
}

.shohyo__links {
  display: flex;
  flex-direction: column;
  gap: var(--space-40);
  align-items: center;
}

.shohyo__link {
  font-family: var(--font-sans);
  font-size: var(--fs-20);
  font-weight: var(--fw-bold);
  line-height: var(--lh-150);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 6px;
  transition: color 0.2s ease, text-decoration-color 0.2s ease;
}

.shohyo__link:hover,
.shohyo__link:focus-visible {
  color: var(--color-primary);
  text-decoration: underline;
  text-decoration-thickness: 1px;
  text-underline-offset: 6px;
}
  
.shohyo__link:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 2px;
}

@media (min-width: 640px) {
  .shohyo {
    padding: var(--space-80) 120px;
  }

  .shohyo__links {
    align-items: center;
    gap: var(--space-40);
  }
}

/* ===== engeki ===== */
.engeki {
  padding: var(--space-40) var(--space-20);
}

.engeki__title {
  text-align: center;
  margin: 0 0 var(--space-40);
  font-family: var(--font-serif);
  color: var(--color-primary);
}

.engeki__title-br {
  display: inline;
}

.engeki__comments {
  display: flex;
  flex-direction: column;
  gap: var(--space-20);
  align-items: flex-start;
}

@media (min-width: 640px) {
  .engeki {
    padding: var(--space-80) 120px;
  }

  .engeki__comments {
    max-width: 800px;
    margin: 0 auto;
  }

  .engeki__title-br {
    display: none;
  }
}

/* ===== shoten ===== */
.shoten {
  padding: var(--space-40) var(--space-20);
  background: #e8e7f5;
}

.shoten__title {
  text-align: center;
  margin: 0 0 var(--space-40);
  font-family: var(--font-serif);
  color: var(--color-primary);
}

.shoten__grid {
  --masonry-row: 2px;
  display: grid;
  grid-template-columns: repeat(1, minmax(0, 335px));
  grid-auto-rows: var(--masonry-row);
  row-gap: var(--space-20);
  column-gap: var(--space-20);
  justify-content: center;
  align-items: start;
}

@media (min-width: 640px) {
  .shoten {
    padding: var(--space-80) 120px;
  }

  .shoten__grid {
    grid-template-columns: repeat(2, minmax(0, 350px));
    row-gap: var(--space-40);
    column-gap: var(--space-40);
  }
}

/* ===== diary ===== */
.diary {
  position: relative;
  padding: var(--space-40) var(--space-20);
  overflow: hidden;
}

.diary__bg {
  position: absolute;
  inset: 0;
  opacity: 0.5;
  pointer-events: none;
}

.diary__bg img {
  position: absolute;
  left: -12.22%;
  top: 87.91%;
  width: 112.34%;
  height: auto;
  max-width: none;
}

.diary__inner {
  position: relative;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--space-40);
}

.diary__title-wrap {
  display: flex;
  flex-direction: column;
  align-items: center;
  position: relative;
}

.diary__title {
  margin: 0;
  font-family: var(--font-serif);
  font-size: var(--fs-32);
  line-height: var(--lh-130);
  color: var(--color-primary);
  font-weight: var(--fw-regular);
}


.diary__entries {
  display: flex;
  flex-direction: column;
  gap: var(--space-40);
  align-items: center;
  width: 100%;
  max-width: 335px;
}

.diary__entry {
  width: 100%;
  background: var(--color-bg);
  padding: var(--space-20);
}

.diary__entry-body {
  background: var(--color-bg);
  padding: var(--space-15) 0;
  background-image: repeating-linear-gradient(
    to bottom,
    transparent 0,
    transparent calc(1.8em - 1px),
    rgba(0, 0, 0, 0.08) calc(1.8em - 1px),
    rgba(0, 0, 0, 0.08) 1.8em
  );
  background-size: 100% 1.8em;
  background-position: 0 0;
  padding-top: 0.1em;
  padding-bottom: 0.4em;
}

.diary__entry-text {
  margin: 0;
  font-family: var(--font-serif);
  font-size: var(--fs-16);
  line-height: 1.8;
  white-space: pre-wrap;
}

@media (min-width: 640px) {
  .is-safari .diary__entry-text {
    line-height: 29px;
  }

  .is-safari .diary__entry-body {
    background-image: repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent calc(29px - 1px),
      rgba(0, 0, 0, 0.08) calc(29px - 1px),
      rgba(0, 0, 0, 0.08) 29px
    );
    background-size: 100% 29px;
  }
}

.diary__message {
  text-align: center;
  color: var(--color-accent-text);
  font-size: var(--fs-20);
  line-height: var(--lh-180);
  font-weight: var(--fw-medium);
  font-family: var(--font-sans);
}

.diary__message p {
  margin: 0;
}

.diary__top {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 200px;
  height: 58px;
  border-radius: var(--radius-40);
  background: var(--color-bg);
  border: 2px solid var(--color-text);
  color: var(--color-text);
  font-size: var(--fs-20);
  line-height: var(--lh-180);
  font-weight: var(--fw-medium);
  transition: background-color 0.2s ease, color 0.2s ease, border-color 0.2s ease;
}

.diary__top:hover,
.diary__top:focus-visible {
  background: var(--color-accent);
  color: var(--color-text);
}

.diary__top:active {
  background: #222222;
  border-color: #222222;
  color: var(--color-text-inverse);
}

.diary__top:focus-visible {
  outline: 2px solid var(--color-primary);
  outline-offset: 3px;
}

@media (max-width: 639px) {
  .diary__entry-text {
    line-height: 28px;
  }

  .diary__entry-body {
    background-image: repeating-linear-gradient(
      to bottom,
      transparent 0,
      transparent calc(28px - 1px),
      rgba(0, 0, 0, 0.12) calc(28px - 1px),
      rgba(0, 0, 0, 0.12) 28px
    );
    background-size: 100% 28px;
    padding-top: 2px;
    padding-bottom: 6px;
  }
}

@media (min-width: 900px) {
  .diary {
    padding: var(--space-80) 300px;
  }

  .diary__inner {
    gap: var(--space-60);
  }

  .diary__entries {
    max-width: 740px;
  }

  .diary__bg img {
    left: 20.42%;
    top: 66%;
    width: 59.17%;
    height: auto;
  }
}

/* ===== comment (shared) ===== */
.comment {
  padding: var(--space-20);
}

.comment__title {
  margin: 0 0 var(--space-10);
  font-size: var(--fs-24);
  color: var(--color-primary);
  line-height: var(--lh-130);
}

.comment__name {
  margin: 0;
  font-size: var(--fs-36);
  color: var(--color-primary);
  line-height: var(--lh-150);
  font-weight: var(--fw-medium);
}

.comment__role {
  margin: 0;
  font-size: var(--fs-16);
  color: var(--color-primary);
  line-height: var(--lh-150);
}

.comment--kakukai {
  border-bottom: 1px solid var(--color-primary);
  color: var(--color-primary);
  padding: 10px;
}

.comment--engeki {
  background: transparent;
  text-align: left;
}

.comment--engeki .comment__text {
  margin: 0 0 var(--space-10);
}

.comment--engeki .comment__name {
  font-size: var(--fs-20);
  line-height: normal;
  color: var(--color-text);
}

.comment--shoten .comment__label {
  margin: 0;
  background: var(--color-accent);
  padding: 5px;
  font-size: var(--fs-16);
  line-height: normal;
  font-weight: var(--fw-medium);
}

.comment--shoten .comment__text {
  margin: 0;
  background: var(--color-bg);
  padding: 0;
  font-size: var(--fs-16);
  line-height: var(--lh-150);
  display: block;
  width: 100%;
}

.comment--shoten .comment__text-paragraph,
.comment--shoten .comment__text-line {
  margin: 0;
}

.comment--shoten .comment__text-paragraph + .comment__text-paragraph {
  margin-top: var(--space-10);
}

.comment--shoten {
  padding: 0;
}

.shoten__grid .comment {
  width: 100%;
  margin: 0;
}

.shoten__grid .shoten__item--extra {
  display: none;
}

.shoten__cta {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 200px;
  height: 58px;
  margin: 20px 0;
  border-radius: var(--radius-40);
  background: var(--color-accent);
  border: 2px solid var(--color-text);
  color: var(--color-text);
  font-size: var(--fs-20);
  line-height: var(--lh-180);
  font-weight: var(--fw-medium);
  justify-self: center;
}

.shoten__cta-wrap {
  display: flex;
  justify-content: center;
}

@media (min-width: 640px) {
  .shoten__grid .shoten__item--extra {
    display: block;
  }

  .shoten--expanded .shoten__item--extra {
    display: block;
  }

  .shoten__cta-wrap {
    display: none;
  }

  .shoten__cta {
    display: none;
  }
}

@media (max-width: 639px) {
  .shoten--expanded .shoten__item--extra {
    display: block;
  }
}

@media (min-width: 960px) {
  .shoten__grid {
    grid-template-columns: repeat(3, minmax(0, 350px));
  }
}

/* ===== footer ===== */
footer {
  padding-bottom: var(--space-40);
}

.footer__copyright {
  text-align: center;
}

footer > a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 100%;
}