:root {
  --bg-a: #cae8e7;
  --bg-b: #cfd7f3;
  --surface: rgba(244, 255, 255, 0.58);
  --surface-strong: rgba(255, 255, 255, 0.8);
  --text: #133436;
  --muted: #477276;
  --line: rgba(19, 52, 54, 0.11);
  --brand: #0c9db2;
  --brand-2: #6cc6d2;
  --brand-soft: rgba(12, 157, 178, 0.14);
  --shadow: 0 20px 45px rgba(31, 64, 77, 0.14);
}

[data-theme="dark"] {
  --bg-a: #0b1720;
  --bg-b: #11182b;
  --surface: rgba(13, 24, 36, 0.78);
  --surface-strong: rgba(20, 32, 48, 0.94);
  --text: #eaf6ff;
  --muted: #9cb4c8;
  --line: rgba(168, 199, 224, 0.22);
  --brand: #55d3e7;
  --brand-2: #3ea6ff;
  --brand-soft: rgba(85, 211, 231, 0.2);
  --shadow: 0 24px 60px rgba(0, 0, 0, 0.5);
}

* {
  box-sizing: border-box;
  cursor: pointer;
}

input,
textarea {
  cursor: text;
}

body {
  margin: 0;
  font-family: "Plus Jakarta Sans", sans-serif;
  color: var(--text);
  min-height: 100vh;
  background: linear-gradient(130deg, var(--bg-a), var(--bg-b));
}

.bg-layer {
  position: fixed;
  inset: 0;
  pointer-events: none;
  background:
    radial-gradient(circle at 20% 15%, rgba(255, 255, 255, 0.34), transparent 42%),
    radial-gradient(circle at 83% 90%, rgba(255, 255, 255, 0.25), transparent 35%),
    linear-gradient(transparent 97%, rgba(255, 255, 255, 0.12) 100%),
    linear-gradient(90deg, transparent 97%, rgba(255, 255, 255, 0.12) 100%);
  background-size: auto, auto, 36px 36px, 36px 36px;
  opacity: 0.8;
}

.loading-screen {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  background: rgba(18, 32, 36, 0.3);
  backdrop-filter: blur(6px);
}

.loading-screen.hidden {
  display: none;
}

.loading-box {
  background: var(--surface-strong);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 18px 22px;
  box-shadow: var(--shadow);
  text-align: center;
  animation: pulse 1s ease-in-out infinite;
  backdrop-filter: blur(10px);
}

.loading-title {
  margin: 0;
  font-size: 18px;
  font-weight: 800;
  color: var(--brand);
}

.loading-subtitle {
  margin: 4px 0 0;
  color: var(--muted);
  font-size: 13px;
}

.app {
  position: relative;
  z-index: 1;
  max-width: 1080px;
  margin: 20px auto;
  padding: 16px;
  border: 1px solid rgba(255, 255, 255, 0.45);
  border-radius: 26px;
  background: var(--surface);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
}

.topbar {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  margin-bottom: 14px;
}

.brand-block {
  display: flex;
  align-items: flex-end;
  gap: 12px;
}

.brand-icon-stack {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
}

.brand-icon {
  width: 54px;
  height: 54px;
  object-fit: contain;
  flex-shrink: 0;
}

.brand-copy {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 6px;
}

.eyebrow {
  margin: 0;
  font-weight: 700;
  color: var(--brand);
  letter-spacing: 0.08em;
  font-size: 12px;
}

.jp-mark {
  font-family: "Noto Sans JP", sans-serif;
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.02em;
  line-height: 1;
  margin: 0;
}

.brand-title {
  margin: 0;
  font-size: 40px;
  line-height: 0.95;
  letter-spacing: 0.02em;
}

.subtitle {
  margin: 0;
  font-size: 18px;
  color: var(--muted);
  font-weight: 600;
}

.card {
  background: var(--surface-strong);
  border: 1px solid var(--line);
  border-radius: 18px;
  padding: 14px;
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.05);
  backdrop-filter: blur(8px);
}

.paywall {
  text-align: left;
  padding: 18px;
}

.paywall h2 {
  margin: 0 0 8px;
  font-size: 24px;
}

.paywall p {
  margin: 0;
  color: var(--muted);
}

.access-form {
  margin-top: 14px;
  display: grid;
  grid-template-columns: 1fr;
  gap: 10px;
}

.access-form input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 13px;
  font-size: 14px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--text);
}

[data-theme="dark"] .access-form input {
  background: rgba(231, 239, 250, 0.12);
  border-color: rgba(178, 205, 227, 0.28);
}

#access-message {
  min-height: 18px;
  margin-top: 10px;
}

.controls {
  display: grid;
  gap: 12px;
  position: relative;
  z-index: 40;
}

.search-wrap input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 14px;
  padding: 13px 14px;
  font-size: 15px;
  background: rgba(255, 255, 255, 0.72);
  color: var(--text);
}

[data-theme="dark"] .search-wrap input {
  background: rgba(231, 239, 250, 0.12);
  border-color: rgba(178, 205, 227, 0.28);
  color: var(--text);
}

[data-theme="dark"] .search-wrap input::placeholder {
  color: #94abc0;
}

.chips {
  display: flex;
  gap: 8px;
  flex-wrap: wrap;
  padding-bottom: 4px;
}

.mobile-category {
  display: block;
  position: relative;
  z-index: 80;
}

.category-trigger {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 12px 40px 12px 12px;
  font-size: 14px;
  background: rgba(255, 255, 255, 0.78);
  color: var(--text);
  text-align: left;
  position: relative;
}

[data-theme="dark"] .category-trigger {
  background: rgba(231, 239, 250, 0.12);
  border-color: rgba(178, 205, 227, 0.28);
}

.category-trigger::after {
  content: "▾";
  position: absolute;
  right: 12px;
  top: 50%;
  transform: translateY(-50%);
  opacity: 0.85;
}

.category-menu {
  position: absolute;
  left: 0;
  right: 0;
  top: calc(100% + 6px);
  z-index: 1200;
  display: grid;
  gap: 4px;
  background: var(--surface-strong);
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 6px;
  box-shadow: var(--shadow);
  max-height: 260px;
  overflow-y: auto;
}

.tabs,
.summary,
.phrase-list {
  position: relative;
  z-index: 1;
}

.category-option {
  border: 0;
  border-radius: 8px;
  background: transparent;
  color: var(--text);
  font-size: 14px;
  padding: 10px;
  text-align: left;
}

.category-option.active {
  background: linear-gradient(120deg, var(--brand), var(--brand-2));
  color: #fff;
  font-weight: 700;
}

.chip {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.72);
  color: var(--text);
  border-radius: 999px;
  padding: 8px 12px;
  font-size: 13px;
  white-space: nowrap;
}

[data-theme="dark"] .chip {
  background: rgba(215, 229, 245, 0.14);
  border-color: rgba(176, 205, 228, 0.22);
  color: #d8e6f3;
}

.chip.active {
  background: linear-gradient(120deg, var(--brand), var(--brand-2));
  border-color: transparent;
  color: #ffffff;
  font-weight: 700;
}

.tabs {
  margin: 14px 0 8px;
  display: inline-flex;
  gap: 6px;
  padding: 5px;
  border-radius: 12px;
  background: rgba(255, 255, 255, 0.5);
  border: 1px solid var(--line);
}

[data-theme="dark"] .tabs {
  background: rgba(194, 214, 236, 0.14);
  border-color: rgba(176, 205, 228, 0.22);
}

.tab {
  border: 0;
  border-radius: 9px;
  background: transparent;
  padding: 8px 14px;
  color: var(--muted);
  font-weight: 600;
}

.tab.active {
  background: rgba(255, 255, 255, 0.82);
  color: var(--text);
  box-shadow: 0 4px 12px rgba(15, 35, 45, 0.14);
}

[data-theme="dark"] .tab.active {
  background: rgba(235, 244, 255, 0.2);
  color: #f1f8ff;
}

.summary p {
  margin: 8px 0;
  color: var(--muted);
  font-size: 14px;
  letter-spacing: 0.01em;
}

.phrase-list {
  display: grid;
  gap: 12px;
  padding-bottom: 28px;
}

.phrase-card {
  border-radius: 18px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.phrase-card:hover {
  transform: translateY(-2px);
  border-color: rgba(12, 157, 178, 0.35);
  box-shadow: 0 18px 34px rgba(20, 69, 77, 0.2);
}

.phrase-header {
  display: flex;
  justify-content: space-between;
  gap: 10px;
}

.actions {
  display: flex;
  gap: 6px;
}

.category {
  margin: 0;
  font-size: 12px;
  color: var(--brand);
  font-weight: 700;
}

.situasi {
  margin: 2px 0 10px;
  font-size: 17px;
}

.jepang {
  margin: 0;
  font-family: "Noto Sans JP", sans-serif;
  font-size: 26px;
  line-height: 1.35;
}

.romaji,
.indonesia,
.tips {
  margin: 8px 0 0;
  font-size: 14px;
  line-height: 1.5;
}

.romaji {
  color: var(--muted);
}

.tips {
  border-top: 1px dashed var(--line);
  padding-top: 8px;
  color: var(--muted);
}

.phrase-extra {
  margin-top: 10px;
  padding: 10px;
  border-radius: 12px;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.5);
  color: var(--muted);
  font-size: 13px;
  line-height: 1.5;
  display: block;
}

[data-theme="dark"] .phrase-extra {
  background: rgba(201, 220, 242, 0.12);
  border-color: rgba(170, 201, 226, 0.22);
  color: #c8dbeb;
}

.phrase-extra p {
  margin: 0 0 6px;
}

.phrase-extra p:last-child {
  margin-bottom: 0;
}

.tags {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 6px;
}

.tag {
  font-size: 11px;
  color: var(--muted);
  background: rgba(255, 255, 255, 0.65);
  border: 1px solid var(--line);
  border-radius: 8px;
  padding: 4px 6px;
}

[data-theme="dark"] .tag {
  background: rgba(201, 220, 242, 0.12);
  border-color: rgba(170, 201, 226, 0.22);
  color: #c8dbeb;
}

.icon-btn,
.primary-btn,
.ghost-btn {
  cursor: pointer;
  font-family: inherit;
}

.icon-btn {
  border: 1px solid var(--line);
  border-radius: 10px;
  width: 34px;
  height: 34px;
  background: rgba(255, 255, 255, 0.8);
  color: var(--text);
  transition: transform 0.15s ease, background-color 0.15s ease;
}

[data-theme="dark"] .icon-btn {
  background: rgba(213, 231, 249, 0.16);
  border-color: rgba(178, 205, 227, 0.28);
  color: #eaf6ff;
}

.icon-btn:hover {
  transform: translateY(-1px);
  background: rgba(255, 255, 255, 0.96);
}

[data-theme="dark"] .icon-btn:hover {
  background: rgba(213, 231, 249, 0.25);
}

.fav-btn.is-favorite {
  color: #ffb11f;
  border-color: rgba(255, 177, 31, 0.48);
  background: rgba(255, 177, 31, 0.14);
  box-shadow: 0 0 0 1px rgba(255, 177, 31, 0.18) inset;
}

[data-theme="dark"] .fav-btn.is-favorite {
  color: #ffd36d;
  border-color: rgba(255, 211, 109, 0.54);
  background: rgba(255, 211, 109, 0.2);
}

.primary-btn {
  background: linear-gradient(120deg, var(--brand), var(--brand-2));
  color: white;
  border: 0;
  border-radius: 12px;
  padding: 10px 14px;
  font-weight: 700;
}

.ghost-btn {
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.65);
  color: var(--text);
  border-radius: 11px;
  padding: 8px 11px;
}

[data-theme="dark"] .ghost-btn {
  background: rgba(213, 231, 249, 0.16);
  border-color: rgba(178, 205, 227, 0.28);
  color: #eaf6ff;
}

.muted {
  color: var(--muted);
  font-size: 13px;
}

.hidden {
  display: none;
}

@keyframes pulse {
  0%, 100% { transform: scale(1); opacity: 1; }
  50% { transform: scale(1.03); opacity: 0.86; }
}

@media (min-width: 768px) {
  .app {
    margin: 48px auto;
    padding: 24px;
  }

  .jp-mark {
    font-size: 22px;
  }

  .brand-block {
    gap: 16px;
  }

  .brand-icon {
    width: 72px;
    height: 72px;
  }

  .brand-title {
    font-size: 60px;
  }

  .subtitle {
    font-size: 20px;
  }

  .mobile-category {
    display: none;
  }

  .phrase-list {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .access-form {
    grid-template-columns: 1fr auto;
    align-items: center;
  }
}

@media (max-width: 767px) {
  .chips {
    display: none;
  }
}