@charset "UTF-8";

/* --- 1. CSS Reset & Variables --- */
@import url("https://unpkg.com/ress/dist/ress.min.css");

:root {
  --bg-color: #f8fafc;
  --text-primary: #0f172a;
  --text-secondary: #64748b;
  --accent-web: #10b981;
  --accent-graphic: #8b5cf6;
  --card-bg: #ffffff;
  --shadow-soft: 0 0.625rem 1.875rem -0.625rem rgba(0, 0, 0, 0.04);
  --shadow-float: 0 1.875rem 3.75rem -0.75rem rgba(0, 0, 0, 0.08);
  --transition: all 0.5s cubic-bezier(0.23, 1, 0.32, 1);
  --header-height: 112px;
  --footer-height: 56px;
}

/* --- 2. Global Styles --- */
* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
}

body {
  font-family: "Inter", "Noto Sans JP", sans-serif;
  background-color: var(--bg-color);
  color: var(--text-primary);
  line-height: 1.6;
  letter-spacing: 0.1em;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  font-feature-settings: "palt";
}

/* For index page specifically (handled by user's calc) */
.home-body {
  overflow: hidden;
}

@media (max-width: 767px) {
  .home-body {
    overflow: auto;
    height: auto;
  }
}

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

.container {
  width: min(90%, 1200px);
  margin-inline: auto;
}

.wrapper {
  padding-block: clamp(2rem, 8vh, 5rem);
}

.hidden {
  display: none !important;
}

.visible-sp {
  display: block;
}

@media (min-width: 1025px) {
  .visible-sp {
    display: inline;
  }
}

/* --- 3. Header --- */
header {
  position: sticky;
  top: 0;
  z-index: 100;
  width: 100%;
  min-height: var(--header-height);
  height: auto;
  background: transparent;
  padding-block: 1.5rem;
  transition: var(--transition);
}

header.on-gallery {
  background: rgba(255, 255, 255, 0.7);
  backdrop-filter: blur(1.25rem);
  -webkit-backdrop-filter: blur(1.25rem);
  border-bottom: 1px solid rgba(0, 0, 0, 0.03);
  box-shadow: 0 0.25rem 1.875rem rgba(0, 0, 0, 0.03);
}

header.on-selection .nav-links {
  display: none;
}

.header-content {
  display: flex;
  flex-direction: column;
  align-items: center;
  height: 100%;
  justify-content: center;
}

@media (min-width: 768px) {
  .header-content {
    flex-direction: row;
    justify-content: space-between;
  }
}

.logo {
  font-weight: 700;
  font-size: 1.25rem;
  color: var(--text-primary);
  display: flex;
  align-items: center;
  gap: 0.625rem;
  transition: var(--transition);
}

.logo:hover {
  transform: scale(1.02);
}

.nav-links {
  display: flex;
  gap: 0.5rem 0.25rem;
  margin-block-start: 1rem;
  width: 100%;
  justify-content: center;
  flex-wrap: wrap;
}

@media (min-width: 768px) {
  .nav-links {
    gap: 1rem;
    margin-block-start: 0;
    width: auto;
  }
}

.nav-link {
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--text-secondary);
  font-weight: 500;
  font-size: 0.75rem;
  padding: 0.5rem 0.5rem;
  border-radius: 0.75rem;
  line-height: 1.2;
}

@media (min-width: 768px) {
  .nav-link {
    font-size: 0.9rem;
    padding: 0.5rem 1rem;
  }
}

.nav-link:hover {
  color: var(--text-primary);
  background: rgba(0, 0, 0, 0.04);
}

.back-to-school {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  border: 1px solid rgba(0, 0, 0, 0.1);
}

.back-to-school:hover {
  border-color: var(--text-primary);
}

.nav-link.active-web {
  color: var(--accent-web);
  background: rgba(16, 185, 129, 0.08);
}

.nav-link.active-graphic {
  color: var(--accent-graphic);
  background: rgba(139, 92, 246, 0.08);
}

/* --- 4. Main - Selection Screen --- */
#selection-screen {
  flex: 1;
  display: flex;
  flex-direction: column;
  background-color: var(--bg-color);
  overflow-y: auto;
  height: calc(100dvh - var(--header-height) - var(--footer-height));
}

@media (max-width: 767px) {
  #selection-screen {
    height: auto;
    overflow: visible;
  }
}

.selection-header-area {
  padding-block: 2.25rem 0.75rem;
  padding-inline: 1.25rem;
  text-align: center;
}

@media (min-width: 768px) {
  .selection-header-area {
    padding-block: clamp(1.5rem, 4vh, 2.5rem);
    padding-inline: 1.5rem;
  }
}

@media (min-width: 768px) {
  .selection-title h1 {
    font-size: clamp(2.5rem, 6vw, 3.5rem);
  }
}

.hero-logo-text {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.5rem;
  margin-bottom: 2rem;
}

.logo-main {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--text-primary);
  opacity: 0.9;
}

.logo-sub {
  font-size: 1.8rem;
  font-weight: 800;
  letter-spacing: -0.02em;
  line-height: 1.2;
}

@media (min-width: 768px) {
  .logo-main {
    font-size: 1.5rem;
  }
  .logo-sub {
    font-size: clamp(2.5rem, 5vw, 4rem);
  }
}

.selection-secondary-links {
  display: flex;
  justify-content: center;
  gap: 1.5rem;
  margin-top: 2rem;
  flex-wrap: wrap;
}

.secondary-btn {
  display: flex;
  align-items: center;
  gap: 0.5rem;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--text-primary);
  padding: 0.625rem 1.25rem;
  border: 1px solid rgba(15, 23, 42, 0.15);
  border-radius: 2rem;
  background: white;
  transition: var(--transition);
  box-shadow: 0 0.25rem 0.5rem rgba(0, 0, 0, 0.05);
}

.secondary-btn:hover {
  background: #f1f5f9;
  border-color: var(--text-primary);
  transform: translateY(-0.125rem);
  box-shadow: 0 0.5rem 1rem rgba(0, 0, 0, 0.08);
}

.selection-title p {
  color: var(--text-secondary);
  font-size: 0.95rem;
  max-width: 40rem;
  margin-block: 1.5rem 0;
  margin-inline: auto;
  line-height: 1.5;
  text-align: left;
}

@media (min-width: 768px) {
  .selection-title p {
    font-size: 1rem;
  }
}

.selection-visual-area {
  padding: 0.75rem 1.25rem 3.5rem;
  display: flex;
  flex-direction: column;
  justify-content: center;
  align-items: center;
}

@media (min-width: 768px) {
  .selection-visual-area {
    flex: 1;
    padding-block: clamp(0.5rem, 2vh, 1.5rem) clamp(1rem, 3vh, 2rem);
    padding-inline: 1.5rem;
  }
}

.selection-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  width: 100%;
  margin-block-start: 1.5rem;
}

@media (min-width: 768px) {
  .selection-grid {
    grid-template-columns: 1fr 1fr;
    gap: clamp(1.5rem, 4vw, 3rem);
    margin-block-start: 0;
  }
}

.selection-card {
  position: relative;
  border-radius: 1.5rem;
  padding: 1.5rem;
  min-height: 14rem;
  display: flex;
  flex-direction: column;
  justify-content: space-between; /* Icon top, text bottom */
  align-items: center;
  text-align: center;
  color: white;
  overflow: hidden;
  background-size: cover;
  background-position: center;
}

@media (min-width: 768px) {
  .selection-card {
    border-radius: 2.5rem;
    padding: clamp(2rem, 5vh, 4rem) 2rem;
    min-height: clamp(20rem, 50vh, 26rem);
  }
}

.selection-card.web {
  background-image: url(img/web.webp);
}

.selection-card.graphic {
  background-image: url(img/graphic.webp);
}

.selection-card::before {
  content: "";
  position: absolute;
  top: 0;
  left: 0;
  right: 0;
  bottom: 0;
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.4), rgba(15, 23, 42, 0.85));
  z-index: 1;
  transition: var(--transition);
}

.selection-card:hover::before {
  background: linear-gradient(to bottom, rgba(15, 23, 42, 0.2), rgba(15, 23, 42, 0.7));
}

.selection-card > * {
  position: relative;
  z-index: 2;
}

.selection-card:hover {
  transform: translateY(-0.75rem) scale(1.02);
}

.icon-box {
  width: 4rem;
  height: 4rem;
  border-radius: 1.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

@media (min-width: 768px) {
  .icon-box {
    width: clamp(4.5rem, 8vh, 6rem);
    height: clamp(4.5rem, 8vh, 6rem);
  }
}

.selection-card:hover .icon-box {
  transform: rotate(-5deg) scale(1.1);
}

.web .icon-box {
  background: rgba(16, 185, 129, 0.25);
  color: #34d399;
}

.graphic .icon-box {
  background: rgba(139, 92, 246, 0.25);
  color: #a78bfa;
}

.selection-card h2 {
  font-size: clamp(1.2rem, 4vw, 1.5rem);
  margin-block-start: 0.5rem;
  font-weight: 700;
  letter-spacing: -0.02em;
  white-space: nowrap;
}

@media (min-width: 768px) {
  .selection-card h2 {
    font-size: clamp(1.5rem, 3.5vw, 2.25rem);
  }
}

.selection-card p {
  font-size: 0.95rem;
  margin-block-start: 0.5rem;
  color: rgba(255, 255, 255, 0.7);
  line-height: 1.5;
}

@media (min-width: 768px) {
  .selection-card p {
    font-size: clamp(0.95rem, 1.5vw, 1.1rem);
  }
}

/* --- 5. Main - Gallery Screen --- */
#gallery-screen {
  flex: 1;
  padding: 2.5rem 0 4rem;
}

@media (max-width: 767px) {
  #gallery-screen {
    padding: 2.5rem 0;
  }
}

.gallery-header {
  margin-block-end: 2rem;
}

.gallery-title {
  font-size: clamp(0.75rem, 3.8vw, 1.25rem);
  display: flex;
  align-items: center;
  gap: 0.3rem;
  font-weight: 800;
  letter-spacing: -0.03em;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

@media (min-width: 768px) {
  .gallery-title {
    font-size: 2rem;
    gap: 1rem;
  }
}

.gallery-title svg {
  width: 1.1rem !important;
  height: 1.1rem !important;
}

@media (min-width: 768px) {
  .gallery-title svg {
    width: 2rem !important;
    height: 2rem !important;
  }
}

.filter-section {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem; /* Increased from 0.75rem for better separation */
  margin-block-start: 2rem;
}

@media (min-width: 768px) {
  .filter-section {
    margin-block-start: 3.5rem;
  }
}

.desktop-only {
  display: none;
}

@media (min-width: 768px) {
  .desktop-only {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
  }
}

.mobile-only {
  display: block;
}

@media (min-width: 768px) {
  .mobile-only {
    display: none !important;
  }
}

.filter-chip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.625rem 1.5rem;
  border-radius: 6.25rem;
  background: #f1f5f9;
  color: var(--text-secondary);
  font-size: 0.9rem;
  font-weight: 600;
  cursor: pointer;
  border: 1px solid transparent;
  white-space: nowrap;
  transition: var(--transition);
  line-height: 1;
}

.filter-chip:hover {
  background: #e2e8f0;
  transform: translateY(-0.125rem);
}

.filter-chip.active {
  background: var(--text-primary);
  color: white;
}

.filter-select {
  -webkit-appearance: none;
  appearance: none;
  width: 100%;
  padding: 0.75rem 1rem;
  border-radius: 0.75rem;
  border: 1px solid #e2e8f0;
  background-color: white;
  font-size: 0.95rem;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='24' height='24' viewBox='0 0 24 24' fill='none' stroke='currentColor' stroke-width='2' stroke-linecap='round' stroke-linejoin='round'%3E%3Cpath d='m6 9 6 6 6-6'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  background-size: 1.25rem;
}

.filter-select:focus {
  outline: none;
  border-color: var(--text-primary);
}

.work-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 2rem;
  margin-block-start: 2rem;
}

@media (min-width: 768px) {
  .work-grid {
    grid-template-columns: repeat(2, 1fr);
    gap: 2.5rem;
    margin-block-start: 3rem;
  }
}

@media (min-width: 1025px) {
  .work-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.work-card {
  background: rgba(255, 255, 255, 0.6);
  backdrop-filter: blur(0.625rem);
  -webkit-backdrop-filter: blur(0.625rem);
  border: 1px solid rgba(255, 255, 255, 0.5);
  border-radius: 1.75rem;
  overflow: hidden;
  box-shadow: var(--shadow-soft);
  display: flex;
  flex-direction: column;
  transition: var(--transition);
}

.work-card:hover {
  transform: translateY(-0.625rem);
  box-shadow: var(--shadow-float);
  background: rgba(255, 255, 255, 0.9);
}

.work-image {
  width: 100%;
  aspect-ratio: 4/3;
  object-fit: cover;
  object-position: top;
  background: #f1f5f9;
  transition: var(--transition);
}

.work-card:hover .work-image {
  transform: scale(1.05);
}

.work-info {
  padding: 1.25rem;
}

@media (min-width: 768px) {
  .work-info {
    padding: 1.5rem;
  }
}

.work-meta {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.term-badge {
  font-size: 0.7rem;
  font-weight: 700;
  padding: 0.3rem 0.6rem;
  border-radius: 0.4rem;
  background: rgba(0, 0, 0, 0.04);
  color: var(--text-secondary);
}

@media (min-width: 768px) {
  .term-badge {
    font-size: 0.75rem;
    padding: 0.375rem 0.75rem;
    border-radius: 0.5rem;
  }
}

.work-title {
  font-size: 1.1rem;
  font-weight: 700;
  margin-block-start: 0.75rem;
  letter-spacing: -0.02em;
}

@media (min-width: 768px) {
  .work-title {
    font-size: 1.25rem;
    margin-block-start: 1rem;
  }
}

.student-name {
  font-size: 0.85rem;
  margin-block-start: 0.25rem;
  color: var(--text-secondary);
  display: flex;
  align-items: center;
  gap: 0.375rem;
}

@media (min-width: 768px) {
  .student-name {
    font-size: 0.95rem;
    margin-block-start: 0.375rem;
  }
}

.pagination {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 0.5rem;
  margin-block-start: 2.5rem;
  flex-wrap: wrap;
}

@media (min-width: 768px) {
  .pagination {
    gap: 0.75rem;
    margin-block-start: 4rem;
  }
}

.page-btn {
  width: 2.25rem;
  height: 2.25rem;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: 0.75rem;
  background: #f1f5f9;
  color: var(--text-secondary);
  border: none;
  cursor: pointer;
  font-weight: 600;
  font-size: 0.85rem;
  transition: var(--transition);
}

@media (min-width: 768px) {
  .page-btn {
    width: 2.75rem;
    height: 2.75rem;
    border-radius: 0.85rem;
    font-size: 0.95rem;
  }
}

.page-btn:hover:not(:disabled) {
  background: #e2e8f0;
  transform: translateY(-0.125rem);
  color: var(--text-primary);
}

.page-btn.active {
  background: var(--text-primary);
  color: white;
  box-shadow: 0 0.5rem 1rem -0.25rem rgba(15, 23, 42, 0.2);
}

.page-btn:disabled {
  opacity: 0.4;
  cursor: not-allowed;
}

/* --- 6. Footer --- */
footer {
  text-align: center;
  padding-block: 2.5rem 1.5rem;
  color: var(--text-secondary);
  font-size: 0.85rem;
  height: auto;
  font-weight: 400;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.footer-back-link {
  display: inline-flex;
  align-items: center;
  gap: 0.5rem;
  padding: 0.5rem 1rem;
  background: white;
  border: 1px solid rgba(0, 0, 0, 0.05);
  border-radius: 2rem;
  color: var(--text-primary);
  font-weight: 600;
  box-shadow: var(--shadow-soft);
}

.footer-back-link:hover {
  transform: translateY(-0.125rem);
  box-shadow: var(--shadow-float);
  border-color: rgba(0, 0, 0, 0.1);
}

/* --- 7. Animations --- */
@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(1.875rem);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.animate-fade {
  animation: fadeInUp 0.8s cubic-bezier(0.23, 1, 0.32, 1) forwards;
}