:root {
  --white: #fff;
  --blue: #3366ff;
  --sky: #0080ff;
  --blue-rgb: 51, 102, 255;
  --sky-rgb: 0, 128, 255;
  --surface: rgba(255, 255, 255, 0.75);
  --surface-solid: rgba(255, 255, 255, 0.82);
  --section-bg: rgba(255, 255, 255, 0.5);
  --header-bg: rgba(255, 255, 255, 0.8);
  --glass-bg: var(--surface);
  --glass-border: rgba(var(--blue-rgb), 0.16);
  --glass-border-subtle: rgba(var(--blue-rgb), 0.11);
  --glass-shadow: 0 8px 32px rgba(var(--blue-rgb), 0.1);
  --glass-shadow-lg: 0 16px 40px rgba(var(--blue-rgb), 0.14);
  --glass-inset: inset 0 1px 0 rgba(255, 255, 255, 0.55);
  --blur: 20px;
  --text: var(--blue);
  --text-muted: rgba(var(--blue-rgb), 0.82);
  --text-poem: var(--blue);
  --radius: 22px;
  --font-display: "Zen Maru Gothic", "Hiragino Maru Gothic Pro", sans-serif;
  --font-body: "Noto Sans JP", "Hiragino Sans", sans-serif;
  --font-poem: "Shippori Mincho", "Hiragino Mincho ProN", serif;
}

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

html {
  scroll-behavior: smooth;
}

body {
  font-family: var(--font-body);
  color: var(--text);
  line-height: 1.8;
  min-height: 100vh;
  background: var(--sky);
  overflow-x: hidden;
}

/* Sky background photo */
.sky {
  position: fixed;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  overflow: hidden;
}

.sky-photo {
  position: absolute;
  inset: -3%;
  background: url("images/sky-bg.png") center top / cover no-repeat;
  filter: saturate(1.65) contrast(1.1) brightness(1.05);
  transform: scale(1.03);
}

.sky-photo::after {
  content: "";
  position: absolute;
  inset: 0;
  background: linear-gradient(
    160deg,
    rgba(var(--blue-rgb), 0.2) 0%,
    rgba(var(--sky-rgb), 0.28) 100%
  );
  mix-blend-mode: soft-light;
}

.sky-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(
    180deg,
    rgba(255, 255, 255, 0.38) 0%,
    rgba(255, 255, 255, 0.22) 45%,
    rgba(255, 255, 255, 0.3) 100%
  );
}

.orb {
  position: absolute;
  border-radius: 50%;
  filter: blur(70px);
  animation: drift 18s ease-in-out infinite;
}

.orb-1 {
  width: 480px;
  height: 480px;
  top: -8%;
  right: -6%;
  background: rgba(255, 255, 255, 0.25);
  opacity: 0.4;
}

.orb-2 {
  width: 360px;
  height: 360px;
  bottom: 10%;
  left: -10%;
  background: rgba(var(--sky-rgb), 0.25);
  animation-delay: -9s;
  opacity: 0.35;
}

@keyframes drift {
  0%, 100% { transform: translate(0, 0) scale(1); opacity: 0.35; }
  50% { transform: translate(20px, -15px) scale(1.06); opacity: 0.5; }
}

/* Glass */
.glass,
.glass-panel,
.glass-dark {
  -webkit-backdrop-filter: blur(var(--blur));
  backdrop-filter: blur(var(--blur));
}

.glass {
  background: var(--surface);
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow), var(--glass-inset);
}

.glass-panel {
  background: linear-gradient(
    145deg,
    rgba(255, 255, 255, 0.82) 0%,
    rgba(255, 255, 255, 0.68) 100%
  );
  border: 1px solid var(--glass-border);
  box-shadow: var(--glass-shadow-lg), var(--glass-inset);
  border-radius: var(--radius);
}

.glass-dark {
  background: linear-gradient(
    135deg,
    rgba(var(--blue-rgb), 0.72) 0%,
    rgba(var(--sky-rgb), 0.55) 100%
  );
  border-top: 1px solid var(--glass-border-subtle);
  box-shadow: var(--glass-inset);
}

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

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

a:hover {
  text-decoration: underline;
}

.container {
  width: min(980px, 92vw);
  margin-inline: auto;
  position: relative;
  z-index: 1;
}

main {
  position: relative;
  z-index: 1;
}

/* Header */
.header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: var(--header-bg);
  border-bottom: 1px solid var(--glass-border);
  box-shadow: 0 4px 24px rgba(var(--blue-rgb), 0.08);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: min(980px, 92vw);
  margin-inline: auto;
  padding: 0.85rem 0;
}

.logo {
  display: flex;
  align-items: center;
  text-decoration: none;
}

.logo-img {
  display: block;
  height: 3.5rem;
  width: auto;
}

.logo:hover {
  text-decoration: none;
  opacity: 0.85;
}

.nav-links {
  display: flex;
  gap: 1.6rem;
  list-style: none;
}

.nav-links a {
  font-size: 0.88rem;
  font-weight: 500;
  color: var(--blue);
  text-decoration: none;
  transition: color 0.2s, text-shadow 0.2s;
}

.nav-links a:hover {
  color: var(--sky);
  text-decoration: none;
}

.nav-toggle {
  display: none;
  flex-direction: column;
  gap: 5px;
  background: var(--surface-solid);
  border: 1px solid var(--glass-border);
  border-radius: 8px;
  cursor: pointer;
  padding: 8px;
}

.nav-toggle span {
  display: block;
  width: 22px;
  height: 2px;
  background: var(--blue);
  border-radius: 2px;
  transition: transform 0.3s, opacity 0.3s;
}

/* Hero */
.hero {
  min-height: 92vh;
  display: flex;
  align-items: center;
  padding: 6.5rem 4vw 3rem;
}

.hero-portfolio .hero-panel {
  padding: 2.8rem 2.6rem;
}

.hero-name {
  font-family: var(--font-display);
  font-size: 0.95rem;
  font-weight: 700;
  letter-spacing: 0.18em;
  color: var(--sky);
  margin-bottom: 0.6rem;
}

.hero-quote-note {
  margin-top: 0.5rem;
  font-size: 0.78rem;
  color: var(--text-muted);
}

.portfolio-stats {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.6rem;
  margin-bottom: 1.6rem;
  font-size: 0.88rem;
  color: var(--text-muted);
}

.portfolio-stats strong {
  font-family: var(--font-display);
  font-size: 1.15rem;
  color: var(--blue);
  margin-right: 0.15rem;
}

.stat-divider {
  color: rgba(var(--blue-rgb), 0.35);
}

.hero-inner {
  width: min(980px, 92vw);
  margin-inline: auto;
  display: grid;
  grid-template-columns: 1.1fr 0.9fr;
  gap: 2rem;
  align-items: center;
}

.hero-panel {
  padding: 2.8rem 2.5rem;
}

.hero-eyebrow {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.06em;
  color: var(--sky);
  margin-bottom: 1rem;
  padding: 0.35rem 0.9rem;
  background: rgba(var(--blue-rgb), 0.08);
  border-radius: 999px;
  border: 1px solid var(--glass-border-subtle);
}

.hero h1 {
  font-family: var(--font-poem);
  font-size: clamp(2.2rem, 5.5vw, 3.2rem);
  font-weight: 700;
  line-height: 1.35;
  color: var(--blue);
  margin-bottom: 1.2rem;
}

.hero-lead {
  color: var(--text-muted);
  font-size: 0.98rem;
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.hero-visual {
  padding: 1.5rem;
  text-align: center;
}

.sky-window {
  position: relative;
  aspect-ratio: 4 / 3;
  border-radius: calc(var(--radius) - 6px);
  overflow: hidden;
  border: 1px solid var(--glass-border);
  margin-bottom: 1.2rem;
}

.sky-window-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center 20%;
  filter: saturate(1.65) contrast(1.1) brightness(1.05);
}

.hero-quote {
  font-family: var(--font-poem);
  font-size: 1.05rem;
  color: var(--text-poem);
  font-style: italic;
}

/* Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.72rem 1.5rem;
  font-family: var(--font-body);
  font-size: 0.9rem;
  font-weight: 700;
  border-radius: 999px;
  border: 1px solid var(--glass-border);
  cursor: pointer;
  text-decoration: none;
  -webkit-backdrop-filter: blur(12px);
  backdrop-filter: blur(12px);
  transition: transform 0.2s, box-shadow 0.2s;
}

.btn:hover {
  text-decoration: none;
  transform: translateY(-2px);
}

.btn-primary {
  background: var(--surface-solid);
  color: var(--blue);
  border-color: rgba(var(--blue-rgb), 0.22);
  box-shadow: var(--glass-shadow), var(--glass-inset);
}

.btn-outline {
  background: var(--surface-solid);
  color: var(--blue);
  border-color: rgba(var(--blue-rgb), 0.22);
}

/* Sections */
.section {
  padding: 4.5rem 0;
  background: var(--section-bg);
}

.section-header {
  text-align: center;
  padding: 1.5rem 2rem;
  border-radius: var(--radius);
  margin-bottom: 2rem;
}

.section-header h2 {
  font-family: var(--font-display);
  font-size: clamp(1.5rem, 4vw, 1.9rem);
  color: var(--blue);
  margin-bottom: 0.4rem;
}

.section-header p {
  color: var(--text-muted);
  font-size: 0.92rem;
}

.section-header-left {
  text-align: left;
  max-width: 640px;
}

.section-kicker {
  font-size: 0.76rem;
  font-weight: 700;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--sky);
  margin-bottom: 0.35rem;
}

.section-featured {
  padding-top: 2rem;
  padding-bottom: 3rem;
}

.section-poems {
  padding-top: 3rem;
}

.featured-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.2rem;
}

.featured-card {
  padding: 0;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
  display: flex;
  flex-direction: column;
  border: none;
  text-align: left;
  width: 100%;
  font: inherit;
  color: inherit;
}

.featured-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--glass-shadow-lg), var(--glass-inset);
}

.featured-card-thumb {
  aspect-ratio: 4 / 3;
  overflow: hidden;
  border-bottom: 1px solid var(--glass-border-subtle);
}

.featured-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.35) contrast(1.05);
  transition: transform 0.4s;
}

.featured-card:hover .featured-card-thumb img {
  transform: scale(1.04);
}

.featured-card-body {
  padding: 1.3rem 1.4rem 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.75rem;
  flex: 1;
}

.featured-card h3 {
  font-family: var(--font-poem);
  font-size: 1.2rem;
  color: var(--text-poem);
  line-height: 1.5;
}

/* About */
.about-grid {
  display: grid;
  grid-template-columns: 1fr 1.1fr;
  gap: 2rem;
  align-items: stretch;
}

.about-image {
  overflow: hidden;
  padding: 0.5rem;
}

.about-image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  border-radius: calc(var(--radius) - 8px);
  min-height: 280px;
}

.about-text {
  padding: 2rem 2.2rem;
}

.about-text h2 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  color: var(--blue);
  margin-bottom: 0.2rem;
}

.about-role {
  font-family: var(--font-poem);
  font-size: 1.05rem;
  color: var(--text-poem);
  margin-bottom: 1rem;
}

.about-note {
  font-size: 0.88rem !important;
  opacity: 0.85;
}

.about-kicker {
  font-size: 0.82rem;
  letter-spacing: 0.12em;
  color: var(--sky);
  font-weight: 700;
  margin-bottom: 0.6rem;
}

.about-tag {
  display: inline-block;
  font-size: 0.78rem;
  font-weight: 700;
  letter-spacing: 0.04em;
  color: var(--sky);
  margin-bottom: 1.2rem;
  padding: 0.35rem 0.9rem;
  background: rgba(var(--blue-rgb), 0.08);
  border-radius: 999px;
  border: 1px solid var(--glass-border-subtle);
}

.about-text p {
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.about-links {
  list-style: none;
  margin-top: 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 0.5rem;
}

.about-links a {
  font-weight: 500;
  font-size: 0.9rem;
}

/* Instagram */
.instagram-layout {
  display: grid;
  grid-template-columns: minmax(280px, 420px) 1fr;
  gap: 1.5rem;
  align-items: start;
}

.instagram-embed {
  padding: 0.75rem;
  overflow: hidden;
}

.instagram-embed iframe {
  display: block;
  width: 100%;
  min-height: 520px;
  border: 0;
  border-radius: calc(var(--radius) - 8px);
  background: #fff;
}

.instagram-side {
  padding: 2rem 2.2rem;
  display: flex;
  flex-direction: column;
  gap: 1rem;
}

.instagram-handle {
  font-family: var(--font-display);
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--blue);
}

.instagram-side p {
  color: var(--text-muted);
  font-size: 0.95rem;
}

.instagram-side .btn {
  align-self: flex-start;
}

.instagram-side .instagram-media {
  margin: 0.5rem 0 0 !important;
  max-width: 100% !important;
  min-width: 0 !important;
  width: 100% !important;
  background: transparent !important;
  box-shadow: none !important;
}

/* Filter */
.filter-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.45rem;
  margin-bottom: 2rem;
  padding: 0.85rem 1rem;
  border-radius: 999px;
  width: fit-content;
  margin-inline: auto;
}

.filter-btn {
  padding: 0.45rem 1rem;
  font-size: 0.84rem;
  font-weight: 500;
  border: 1px solid var(--glass-border);
  background: var(--surface-solid);
  color: var(--text-muted);
  border-radius: 999px;
  cursor: pointer;
  transition: all 0.2s;
}

.filter-btn:hover,
.filter-btn.active {
  background: linear-gradient(135deg, var(--blue), var(--sky));
  color: var(--white);
  border-color: rgba(255, 255, 255, 0.55);
  box-shadow: var(--glass-inset);
}

/* Poem grid */
.poem-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
  gap: 1.2rem;
}

.poem-card {
  padding: 0;
  overflow: hidden;
  cursor: pointer;
  transition: transform 0.3s, box-shadow 0.3s;
  display: flex;
  flex-direction: column;
  border: none;
  text-align: left;
  width: 100%;
  font: inherit;
  color: inherit;
}

.poem-card-thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-bottom: 1px solid var(--glass-border-subtle);
}

.poem-card-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.35) contrast(1.05);
  transition: transform 0.4s;
}

.poem-card:hover .poem-card-thumb img {
  transform: scale(1.04);
}

.poem-card-body {
  padding: 1.2rem 1.5rem 1.6rem;
  display: flex;
  flex-direction: column;
  gap: 0.8rem;
  flex: 1;
}

.poem-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--glass-shadow-lg), var(--glass-inset);
}

.poem-card-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.poem-card time {
  font-size: 0.75rem;
  color: var(--text-muted);
}

.poem-card-tag {
  font-size: 0.7rem;
  font-weight: 700;
  color: var(--sky);
  background: rgba(var(--blue-rgb), 0.08);
  padding: 0.2rem 0.6rem;
  border-radius: 999px;
  border: 1px solid var(--glass-border-subtle);
}

.poem-card h3 {
  font-family: var(--font-poem);
  font-size: 1.15rem;
  color: var(--text-poem);
  line-height: 1.5;
}

.poem-card-preview {
  font-family: var(--font-poem);
  font-size: 0.92rem;
  color: var(--text-muted);
  line-height: 2;
  display: -webkit-box;
  -webkit-line-clamp: 4;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.poem-card-more {
  margin-top: auto;
  font-size: 0.78rem;
  font-weight: 700;
  color: var(--sky);
}

.poem-empty {
  grid-column: 1 / -1;
  text-align: center;
  color: var(--text-muted);
  padding: 2rem 1rem;
}

/* Bipolar */
.bipolar-box {
  padding: 2.5rem 2.5rem;
  max-width: 720px;
  margin-inline: auto;
  text-align: center;
}

.bipolar-box h2 {
  font-family: var(--font-display);
  font-size: 1.7rem;
  color: var(--blue);
  margin-bottom: 1rem;
}

.section-journal .section-kicker {
  margin-bottom: 0.5rem;
}

.bipolar-box p {
  color: var(--text-muted);
  margin-bottom: 1rem;
  font-size: 0.95rem;
}

.tag-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  gap: 0.5rem;
  margin-top: 1.5rem;
}

.tag {
  font-size: 0.78rem;
  font-weight: 600;
  color: var(--blue);
  background: rgba(var(--blue-rgb), 0.08);
  border: 1px solid var(--glass-border-subtle);
  padding: 0.35rem 0.75rem;
  border-radius: 999px;
}

/* Footer */
.footer {
  color: var(--blue);
  padding: 2rem 0;
  background: var(--header-bg);
  border-top: 1px solid var(--glass-border);
  box-shadow: 0 -4px 24px rgba(var(--blue-rgb), 0.08);
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 0.5rem;
}

.footer-logo {
  margin: 0;
}

.footer-logo-img {
  display: block;
  height: 2.8rem;
  width: auto;
}

.footer-copy {
  font-size: 0.82rem;
  color: var(--text-muted);
}

/* Modal */
.poem-modal {
  border: none;
  padding: 0;
  max-width: 92vw;
  max-height: 90vh;
  background: transparent;
  overflow: visible;
}

.poem-modal::backdrop {
  background: rgba(var(--blue-rgb), 0.45);
  -webkit-backdrop-filter: blur(14px);
  backdrop-filter: blur(14px);
}

.modal-content {
  max-width: 560px;
  max-height: 85vh;
  overflow-y: auto;
  padding: 0;
}

.modal-thumb {
  aspect-ratio: 16 / 10;
  overflow: hidden;
  border-bottom: 1px solid var(--glass-border-subtle);
}

.modal-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  filter: saturate(1.35) contrast(1.05);
}

.modal-header {
  margin-bottom: 1.5rem;
  padding: 0 2.2rem;
  padding-top: 2rem;
  padding-bottom: 1rem;
  border-bottom: 1px solid var(--glass-border-subtle);
}

.modal-header time {
  font-size: 0.78rem;
  color: var(--text-muted);
}

.modal-header h3 {
  font-family: var(--font-poem);
  font-size: 1.4rem;
  color: var(--text-poem);
  margin: 0.4rem 0;
}

.modal-category {
  font-size: 0.75rem;
  font-weight: 700;
  color: var(--sky);
}

.modal-body {
  font-family: var(--font-poem);
  font-size: 1.05rem;
  line-height: 2.2;
  color: var(--text-poem);
  white-space: pre-line;
  padding: 0 2.2rem 2rem;
}

.modal-close {
  position: fixed;
  top: 1.2rem;
  right: 1.2rem;
  width: 44px;
  height: 44px;
  border: 1px solid var(--glass-border);
  background: var(--surface-solid);
  color: var(--blue);
  font-size: 1.5rem;
  border-radius: 50%;
  cursor: pointer;
  z-index: 10001;
  line-height: 1;
}

/* Mobile */
@media (max-width: 768px) {
  .nav-toggle {
    display: flex;
  }

  .nav-links {
    position: fixed;
    top: 58px;
    left: 0;
    right: 0;
    flex-direction: column;
    background: var(--header-bg);
    -webkit-backdrop-filter: blur(var(--blur));
    backdrop-filter: blur(var(--blur));
    border-bottom: 1px solid var(--glass-border);
    padding: 1.2rem;
    gap: 0.8rem;
    transform: translateY(-120%);
    opacity: 0;
    transition: transform 0.3s, opacity 0.3s;
    pointer-events: none;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(2) {
    opacity: 0;
  }

  .nav-toggle[aria-expanded="true"] span:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .hero-inner,
  .about-grid,
  .instagram-layout,
  .featured-grid {
    grid-template-columns: 1fr;
  }

  .hero-visual {
    order: -1;
  }

  .hero-panel {
    padding: 2rem 1.5rem;
  }

  .filter-bar {
    border-radius: var(--radius);
    width: 100%;
  }
}