* {
  margin: 0;
  padding: 0;
  box-sizing: border-box;
  font-family: "Noto Sans JP", sans-serif;
}

body {
  min-height: 100vh;
  background: linear-gradient(to bottom, #f9fafb, #ffffff);
}

body.no-scroll {
  overflow: hidden;
}

/* ヘッダー */
.header {
  position: sticky;
  top: 0;
  z-index: 30;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(12px);
  border-bottom: 1px solid #f3f4f6;
}

.header-inner {
  max-width: 80rem;
  margin: 0 auto;
  padding: 1rem 1.5rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
}

.logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.logo-icon {
  width: 2rem;
  height: 2rem;
  background: #111827;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.logo-icon svg {
  width: 1rem;
  height: 1rem;
  color: white;
}

.logo-text {
  font-size: 1.125rem;
  font-weight: 700;
  color: #111827;
}

.nav {
  display: none;
  align-items: center;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .nav {
    display: flex;
  }
}

.nav a {
  font-size: 0.875rem;
  color: #4b5563;
  text-decoration: none;
  transition: color 0.2s;
}

.nav a:hover {
  color: #111827;
}

/* ヒーローセクション */
.hero {
  padding: 4rem 1.5rem;
  text-align: center;
}

.hero h1 {
  font-size: 1.875rem;
  font-weight: 700;
  color: #111827;
  margin-bottom: 1rem;
}

@media (min-width: 768px) {
  .hero h1 {
    font-size: 2.25rem;
  }
}

.hero p {
  color: #6b7280;
  max-width: 42rem;
  margin: 0 auto;
  line-height: 1.75;
}

/* カテゴリタブ */
.categories {
  padding: 0 1.5rem 2rem;
}

.categories-inner {
  max-width: 80rem;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
}

.category-btn {
  padding: 0.625rem 1.25rem;
  border-radius: 9999px;
  font-size: 0.875rem;
  font-weight: 500;
  cursor: pointer;
  transition: all 0.3s;
  border: 1px solid #e5e7eb;
  background: white;
  color: #4b5563;
}

.category-btn:hover:not(:disabled) {
  background: #444;
}

.category-btn.active {
  background: #111827;
  color: white;
  border-color: #111827;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.category-btn:disabled {
  background: #f3f4f6;
  color: #9ca3af;
  cursor: not-allowed;
}

.category-count {
  margin-left: 0.5rem;
  padding: 0.125rem 0.375rem;
  border-radius: 9999px;
  font-size: 0.75rem;
  background: #e5e7eb;
}

.category-btn.active .category-count {
  background: rgba(255, 255, 255, 0.2);
}

.coming-soon {
  margin-left: 0.5rem;
  font-size: 0.75rem;
  opacity: 0.6;
}

/* テンプレート一覧 */
.templates {
  padding: 0 1.5rem 5rem;
}

.templates-inner {
  max-width: 80rem;
  margin: 0 auto;
}

.templates-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.5rem;
}

@media (min-width: 768px) {
  .templates-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .templates-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

/* テンプレートカード */
.template-card {
  background: white;
  border-radius: 1rem;
  overflow: hidden;
  box-shadow: 0 1px 3px rgba(0, 0, 0, 0.1);
  border: 1px solid #f3f4f6;
  transition: all 0.5s;
  opacity: 0;
  transform: translateY(20px);
  animation: fadeInUp 0.6s ease-out forwards;
}

.template-card:hover {
  box-shadow: 0 20px 25px -5px rgba(0, 0, 0, 0.1);
}

@keyframes fadeInUp {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card-preview {
  position: relative;
  background: #f9fafb;
  padding: 1.5rem;
}

.card-badge {
  position: absolute;
  top: 1rem;
  left: 1rem;
  padding: 0.25rem 0.5rem;
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(4px);
  border-radius: 9999px;
  font-size: 0.75rem;
  font-weight: 500;
  color: #4b5563;
  box-shadow: 0 1px 2px rgba(0, 0, 0, 0.05);
}

.devices {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 1rem;
  margin-top: 1rem;
}

.template-card:hover .device-pc {
  transform: scale(1.05);
}

.template-card:hover .device-sp {
  transform: scale(1.05) translateX(4px);
}

.device-pc {
  width: 12rem;
  transition: transform 0.5s;
}

.device-sp {
  width: 5rem;
  transition: transform 0.5s 0.075s;
}


.device-sp .device-screen {
  border-radius: 0.5rem;
}

.device-frame {
  background: #1f2937;
  border-radius: 0.5rem;
  overflow: hidden;
  box-shadow: 0 10px 15px -3px rgba(0, 0, 0, 0.1);
}

.device-pc .device-frame,
.panel-device-pc .device-frame {
  aspect-ratio: 16 / 10;
  padding: 0.25rem;
}

.device-sp .device-frame,
.panel-device-sp .device-frame {
  aspect-ratio: 9 / 19;
  padding: 0.125rem;
}

.device-screen {
  width: 100%;
  height: 100%;
  border-radius: 0.25rem;
  overflow: hidden;
  display: flex;
  flex-direction: column;
}

.device-header {
  display: flex;
  align-items: center;
  padding: 0 0.5rem;
}

.device-pc .device-header {
  height: 1.5rem;
}

.device-sp .device-header {
  height: 0.75rem;
}

.device-dots {
  display: flex;
  gap: 0.25rem;
}

.device-dot {
  border-radius: 9999px;
}

.device-pc .device-dot {
  width: 0.375rem;
  height: 0.375rem;
}

.device-sp .device-dot {
  width: 0.25rem;
  height: 0.25rem;
}

.device-content {
  padding: 0;
  flex: 1;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  overflow-y: scroll;
  height: auto;
  position: relative;
}

.device-sp .device-content {
  padding: 0;
}

.device-mock-image {
  position: absolute;
  inset: 0;
  width: 100%;
  height: auto;
  object-fit: cover;
  object-position: top;
  display: block;
}

.device-hero {
  border-radius: 0.25rem;
  margin-bottom: 0.5rem;
}

.device-pc .device-hero {
  height: 4rem;
}

.device-sp .device-hero {
  height: 2rem;
}

.device-blocks {
  display: flex;
  gap: 0.25rem;
}

.device-sp .device-blocks {
  flex-direction: column;
}

.device-block {
  flex: 1;
  border-radius: 0.25rem;
  opacity: 0.6;
}

.device-pc .device-block {
  height: 2rem;
}

.device-sp .device-block {
  height: 1rem;
}

.device-blocks-2 {
  display: flex;
  gap: 0.25rem;
  margin-top: 0.5rem;
}

.device-block-2 {
  flex: 1;
  height: 1.5rem;
  border-radius: 0.25rem;
  opacity: 0.4;
}

.device-label {
  text-align: center;
  margin-top: 0.25rem;
  font-size: 0.75rem;
  color: #9ca3af;
}

.color-palette {
  display: flex;
  justify-content: center;
  gap: 0.375rem;
  margin-top: 1rem;
}

.color-dot {
  width: 1.25rem;
  height: 1.25rem;
  border-radius: 9999px;
  box-shadow: inset 0 2px 4px rgba(0, 0, 0, 0.1);
  border: 2px solid rgba(255, 255, 255, 0.5);
  transition: transform 0.2s;
  cursor: pointer;
}

.color-dot:hover {
  transform: scale(1.25);
}

.card-info {
  padding: 1.25rem;
}

.card-info h3 {
  font-size: 1.125rem;
  font-weight: 700;
  color: #1f2937;
  margin-bottom: 0.25rem;
}

.card-info p {
  font-size: 0.875rem;
  color: #6b7280;
  margin-bottom: 0.75rem;
  display: -webkit-box;
  -webkit-line-clamp: 2;
  -webkit-box-orient: vertical;
  overflow: hidden;
}

.card-tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.375rem;
  margin-bottom: 1rem;
}

.card-tag {
  padding: 0.25rem 0.5rem;
  background: #f3f4f6;
  border-radius: 0.25rem;
  font-size: 0.75rem;
  color: #4b5563;
}

.card-actions {
  display: flex;
  gap: 0.5rem;
}

.btn-preview {
  text-decoration: none;
  flex: 1;
  padding: 0.625rem;
  background: #111827;
  color: white;
  font-size: 0.875rem;
  font-weight: 500;
  border: none;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-preview:hover {
  background: #1f2937;
}

.btn-detail {
  padding: 0.625rem 1rem;
  background: white;
  color: #4b5563;
  font-size: 0.875rem;
  font-weight: 500;
  border: 1px solid #e5e7eb;
  border-radius: 0.5rem;
  cursor: pointer;
  transition: background 0.2s;
}

.btn-detail:hover {
  background: #f9fafb;
}

/* フッター */
.footer {
  background: #111827;
  color: white;
  padding: 3rem 1.5rem;
}

.footer-inner {
  max-width: 80rem;
  margin: 0 auto;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 1.5rem;
}

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

.footer-logo {
  display: flex;
  align-items: center;
  gap: 0.75rem;
}

.footer-logo-icon {
  width: 2rem;
  height: 2rem;
  background: white;
  border-radius: 0.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
}

.footer-logo-icon svg {
  width: 1rem;
  height: 1rem;
  color: #111827;
}

.footer-logo span {
  font-weight: 700;
}

.footer-copy {
  color: #9ca3af;
  font-size: 0.875rem;
}

/* スライドパネル */
.overlay {
  position: fixed;
  inset: 0;
  background: rgba(0, 0, 0, 0.5);
  backdrop-filter: blur(4px);
  z-index: 40;
  opacity: 0;
  pointer-events: none;
  transition: opacity 0.4s;
}

.overlay.active {
  opacity: 1;
  pointer-events: auto;
}

.panel {
  position: fixed;
  top: 0;
  right: 0;
  height: 100%;
  width: 100%;
  max-width: 32rem;
  background: white;
  box-shadow: -20px 0 60px rgba(0, 0, 0, 0.15);
  z-index: 50;
  transform: translateX(100%);
  transition: transform 0.5s cubic-bezier(0.16, 1, 0.3, 1);
  display: flex;
  flex-direction: column;
}

.panel.active {
  transform: translateX(0);
}

.panel-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1.25rem;
  border-bottom: 1px solid #f3f4f6;
  opacity: 0;
  transform: translateY(-1rem);
  transition: all 0.5s 0.1s;
}

.panel.active .panel-header {
  opacity: 1;
  transform: translateY(0);
}

.panel-header-text span {
  font-size: 0.75rem;
  color: #9ca3af;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.panel-header-text h2 {
  font-size: 1.25rem;
  font-weight: 700;
  color: #111827;
}

.btn-close {
  width: 2.5rem;
  height: 2.5rem;
  border-radius: 9999px;
  background: #f3f4f6;
  border: none;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: all 0.3s;
}

.btn-close:hover {
  background: #e5e7eb;
  transform: rotate(90deg);
}

.btn-close svg {
  width: 1.25rem;
  height: 1.25rem;
  color: #4b5563;
}

.panel-content {
  flex: 1;
  overflow-y: auto;
}

.panel-preview {
  background: #f9fafb;
  padding: 1.5rem;
  opacity: 0;
  transform: translateX(2rem);
  transition: all 0.5s 0.15s;
}

.panel.active .panel-preview {
  opacity: 1;
  transform: translateX(0);
}

.panel-devices {
  display: flex;
  align-items: flex-end;
  justify-content: center;
  gap: 1.5rem;
}

.panel-device-pc {
  width: 16rem;
  opacity: 0;
  transform: translateY(2rem);
  transition: all 0.7s 0.2s;
}

.panel.active .panel-device-pc {
  opacity: 1;
  transform: translateY(0);
}

.panel-device-sp {
  width: 7rem;
  opacity: 0;
  transform: translateY(2rem);
  transition: all 0.7s 0.3s;
}

.panel.active .panel-device-sp {
  opacity: 1;
  transform: translateY(0);
}

.panel-device-pc .device-frame {
  padding: 0.25rem;
}

.panel-device-sp .device-frame {
  padding: 0.125rem;
}

.panel-device-sp .device-content {
  border-radius: 0.3rem;
}

.panel-device-pc .device-header {
  height: 2rem;
}

.panel-device-pc .device-hero {
  height: 6rem;
}

.panel-device-pc .device-block {
  height: 3rem;
}

.panel-device-pc .device-block-2 {
  height: 2.5rem;
}

.panel-palette {
  padding: 1.25rem;
  border-bottom: 1px solid #f3f4f6;
  opacity: 0;
  transform: translateX(2rem);
  transition: all 0.5s 0.25s;
}

.panel.active .panel-palette {
  opacity: 1;
  transform: translateX(0);
}

.panel-palette h3 {
  font-size: 0.875rem;
  font-weight: 500;
  color: #6b7280;
  margin-bottom: 0.75rem;
}

.panel-palette-colors {
  display: flex;
  gap: 0.75rem;
}

.panel-color {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 0.25rem;
  opacity: 0;
  transform: scale(0.75);
  transition: all 0.5s;
}

.panel.active .panel-color {
  opacity: 1;
  transform: scale(1);
}

.panel-color-box {
  width: 3rem;
  height: 3rem;
  border-radius: 0.75rem;
  box-shadow: 0 4px 6px -1px rgba(0, 0, 0, 0.1);
  border: 1px solid #f3f4f6;
  transition: transform 0.2s;
  cursor: pointer;
}

.panel-color-box:hover {
  transform: scale(1.1);
}

.panel-color span {
  font-size: 0.75rem;
  color: #9ca3af;
  font-family: monospace;
}

.panel-details {
  padding: 1.25rem;
}

.panel-detail-item {
  margin-bottom: 1.25rem;
  opacity: 0;
  transform: translateX(2rem);
  transition: all 0.5s;
}

.panel.active .panel-detail-item {
  opacity: 1;
  transform: translateX(0);
}

.panel-detail-item h3 {
  font-size: 0.875rem;
  font-weight: 500;
  color: #6b7280;
  margin-bottom: 0.5rem;
}

.panel-detail-item p {
  color: #1f2937;
  line-height: 1.6;
}

.panel-features {
  margin-bottom: 1.25rem;
  opacity: 0;
  transform: translateX(2rem);
  transition: all 0.5s;
}

.panel.active .panel-features {
  opacity: 1;
  transform: translateX(0);
}

.panel-features h3 {
  font-size: 0.875rem;
  font-weight: 500;
  color: #6b7280;
  margin-bottom: 0.75rem;
}

.panel-features ul {
  list-style: none;
}

.panel-features li {
  display: flex;
  align-items: flex-start;
  gap: 0.5rem;
  color: #1f2937;
  margin-bottom: 0.5rem;
  opacity: 0;
  transform: translateX(1rem);
  transition: all 0.5s;
}

.panel.active .panel-features li {
  opacity: 1;
  transform: translateX(0);
}

.panel-features li span {
  width: 0.375rem;
  height: 0.375rem;
  border-radius: 9999px;
  margin-top: 0.5rem;
  flex-shrink: 0;
}

.panel-tags {
  margin-bottom: 1.25rem;
  opacity: 0;
  transform: translateX(2rem);
  transition: all 0.5s;
}

.panel.active .panel-tags {
  opacity: 1;
  transform: translateX(0);
}

.panel-tags h3 {
  font-size: 0.875rem;
  font-weight: 500;
  color: #6b7280;
  margin-bottom: 0.75rem;
}

.panel-tags-list {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
}

.panel-tag {
  padding: 0.375rem 0.75rem;
  background: #f3f4f6;
  border-radius: 9999px;
  font-size: 0.875rem;
  color: #4b5563;
  transition: all 0.3s;
  cursor: default;
  opacity: 0;
  transform: scale(0.75);
}

.panel.active .panel-tag {
  opacity: 1;
  transform: scale(1);
}

.panel-tag:hover {
  background: #e5e7eb;
}

.panel-footer {
  padding: 1.25rem;
  border-top: 1px solid #f3f4f6;
  background: white;
  opacity: 0;
  transform: translateY(1rem);
  transition: all 0.5s 0.4s;
}

.panel.active .panel-footer {
  opacity: 1;
  transform: translateY(0);
}

.btn-use {
  display: block;
  text-decoration: none;
  width: 100%;
  padding: 0.75rem;
  background: #111827;
  color: white;
  font-weight: 500;
  border: none;
  border-radius: 0.75rem;
  cursor: pointer;
  transition: all 0.2s;
}

.btn-use:hover {
  background: #1f2937;
  transform: scale(1.02);
}

.btn-use:active {
  transform: scale(0.98);
}

/* 空状態 */
.empty-state {
  text-align: center;
  padding: 5rem 0;
}

.empty-icon {
  width: 4rem;
  height: 4rem;
  background: #f3f4f6;
  border-radius: 9999px;
  display: flex;
  align-items: center;
  justify-content: center;
  margin: 0 auto 1rem;
}

.empty-icon svg {
  width: 2rem;
  height: 2rem;
  color: #9ca3af;
}

.empty-state p {
  color: #6b7280;
}