:root {
  --bg: #0b0e14;
  --surface: #121826;
  --surface-2: #0f1420;
  --text: #e7edf5;
  --muted: #aab4c3;
  --border: rgba(255, 255, 255, 0.12);
  --shadow: 0 10px 30px rgba(0, 0, 0, 0.35);
  --accent: #76a7ff;
  --accent-2: #6ee7b7;
  --danger: #ff6b6b;
  --ring: 0 0 0 3px rgba(118, 167, 255, 0.35);
  --radius: 14px;
  --radius-sm: 10px;
  --maxw: 1100px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono",
    "Courier New", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, Ubuntu,
    Cantarell, Noto Sans, Helvetica, Arial, "Apple Color Emoji", "Segoe UI Emoji";
}

/* Light theme overrides */
:root[data-theme="light"] {
  --bg: #f6f7fb;
  --surface: #ffffff;
  --surface-2: #f1f4fb;
  --text: #0d1524;
  --muted: #4c5a6b;
  --border: rgba(13, 21, 36, 0.14);
  --shadow: 0 14px 30px rgba(13, 21, 36, 0.12);
  --accent: #2f6dff;
  --accent-2: #0ea5e9;
  --danger: #b42318;
  --ring: 0 0 0 3px rgba(47, 109, 255, 0.25);
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: var(--sans);
  color: var(--text);
  background: radial-gradient(
      1200px 900px at 20% -10%,
      rgba(118, 167, 255, 0.25),
      transparent 60%
    ),
    radial-gradient(
      1100px 900px at 100% 10%,
      rgba(110, 231, 183, 0.18),
      transparent 55%
    ),
    var(--bg);
  line-height: 1.5;
}

a {
  color: inherit;
  text-underline-offset: 0.15em;
}

.container {
  width: min(var(--maxw), calc(100% - 2rem));
  margin: 0 auto;
}

.skip-link {
  position: absolute;
  left: 0.75rem;
  top: 0.75rem;
  padding: 0.6rem 0.8rem;
  border-radius: var(--radius-sm);
  background: var(--surface);
  color: var(--text);
  border: 1px solid var(--border);
  box-shadow: var(--shadow);
  transform: translateY(-160%);
  transition: transform 140ms ease;
  z-index: 50;
}
.skip-link:focus {
  transform: translateY(0);
  outline: none;
  box-shadow: var(--shadow), var(--ring);
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(10px);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  border-bottom: 1px solid var(--border);
}

.header-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: 0.9rem 0;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
  text-decoration: none;
  font-weight: 700;
}

.brand-logo {
  width: 5rem;
  height: 5rem;
  border-radius: 12px;
}

.brand-name {
  letter-spacing: -0.02em;
}

.header-actions {
  display: flex;
  align-items: center;
  gap: 0.6rem;
}

.hero {
  padding: 1.6rem 0 1.1rem;
}

h1 {
  margin: 0 0 0.3rem;
  font-size: clamp(1.7rem, 2.8vw, 2.2rem);
  letter-spacing: -0.02em;
}

h2 {
  margin: 0 0 0.6rem;
  font-size: 1.15rem;
  letter-spacing: -0.01em;
}

p {
  margin: 0.35rem 0;
}

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

.small {
  font-size: 0.95rem;
}

.controls {
  display: grid;
  grid-template-columns: 1.6fr 1fr 1fr 1fr;
  gap: 0.85rem;
  margin-top: 1rem;
}

@media (max-width: 900px) {
  .controls {
    grid-template-columns: 1fr 1fr;
  }
}

@media (max-width: 560px) {
  .controls {
    grid-template-columns: 1fr;
  }
}

.field {
  display: grid;
  gap: 0.35rem;
}

.field-label {
  font-size: 0.93rem;
  color: var(--muted);
}

input,
select {
  width: 100%;
  padding: 0.7rem 0.8rem;
  border-radius: var(--radius-sm);
  background: color-mix(in srgb, var(--surface) 86%, transparent);
  border: 1px solid var(--border);
  color: var(--text);
  box-shadow: 0 1px 0 rgba(255, 255, 255, 0.04) inset;
}

select {
  appearance: none;
  background-image: linear-gradient(45deg, transparent 50%, var(--muted) 50%),
    linear-gradient(135deg, var(--muted) 50%, transparent 50%);
  background-position: calc(100% - 18px) calc(1em + 4px),
    calc(100% - 13px) calc(1em + 4px);
  background-size: 5px 5px, 5px 5px;
  background-repeat: no-repeat;
}

input::placeholder {
  color: color-mix(in srgb, var(--muted) 75%, transparent);
}

input:focus,
select:focus,
button:focus,
a.button:focus {
  outline: none;
  box-shadow: var(--ring);
  border-color: color-mix(in srgb, var(--accent) 75%, var(--border));
}

.status-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  margin-top: 0.9rem;
}

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.5rem;
  border-radius: var(--radius-sm);
  padding: 0.65rem 0.9rem;
  border: 1px solid color-mix(in srgb, var(--accent) 40%, var(--border));
  background: linear-gradient(
    135deg,
    color-mix(in srgb, var(--accent) 34%, var(--surface)),
    color-mix(in srgb, var(--accent-2) 18%, var(--surface))
  );
  color: var(--text);
  text-decoration: none;
  font-weight: 650;
  cursor: pointer;
  box-shadow: 0 6px 18px rgba(0, 0, 0, 0.18);
}

.button.ghost {
  background: color-mix(in srgb, var(--surface) 80%, transparent);
  border: 1px solid var(--border);
  box-shadow: none;
}

.button:hover {
  filter: brightness(1.04);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  margin-top: 0.8rem;
}

.chip {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.35rem 0.55rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 86%, transparent);
  color: var(--muted);
  font-size: 0.92rem;
  cursor: pointer;
}

.chip strong {
  color: var(--text);
  font-weight: 650;
}

.chip button {
  border: 0;
  background: transparent;
  color: inherit;
  padding: 0;
  cursor: pointer;
}

.grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1rem;
  padding: 0.2rem 0 1.8rem;
}

@media (max-width: 900px) {
  .grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 560px) {
  .grid {
    grid-template-columns: 1fr;
  }
}

.card {
  border-radius: var(--radius);
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface) 90%, transparent);
  box-shadow: var(--shadow);
  padding: 1rem;
  display: grid;
  gap: 0.6rem;
}

.card h3 {
  margin: 0;
  font-size: 1.02rem;
  letter-spacing: -0.01em;
}

.card a {
  text-decoration: none;
}

.card .meta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  color: var(--muted);
  font-size: 0.93rem;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  padding: 0.25rem 0.5rem;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: color-mix(in srgb, var(--surface-2) 75%, transparent);
}

.card .tags {
  display: flex;
  flex-wrap: wrap;
  gap: 0.45rem;
}

.tag {
  font-family: var(--mono);
  font-size: 0.83rem;
  padding: 0.22rem 0.45rem;
  border-radius: 999px;
  border: 1px dashed var(--border);
  color: color-mix(in srgb, var(--muted) 92%, transparent);
}

.empty {
  border: 1px dashed var(--border);
  background: color-mix(in srgb, var(--surface) 82%, transparent);
  border-radius: var(--radius);
  padding: 1.3rem;
  margin: 0.6rem 0 2rem;
}

.howto {
  border-top: 1px solid var(--border);
  padding: 1.5rem 0 2rem;
}

code {
  font-family: var(--mono);
  font-size: 0.95em;
  padding: 0.14em 0.3em;
  border-radius: 7px;
  background: color-mix(in srgb, var(--surface) 84%, transparent);
  border: 1px solid var(--border);
}

.site-footer {
  border-top: 1px solid var(--border);
  background: color-mix(in srgb, var(--bg) 80%, transparent);
  padding: 1rem 0;
}

.footer-row {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

/* Memo page layout */
.memo-layout {
  display: grid;
  grid-template-columns: 0.9fr 1.4fr;
  gap: 1rem;
  padding: 1.2rem 0 2rem;
}

@media (max-width: 950px) {
  .memo-layout {
    grid-template-columns: 1fr;
  }
}

.memo-meta {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 90%, transparent);
  box-shadow: var(--shadow);
  padding: 1rem;
  height: fit-content;
}

.memo-meta h1 {
  font-size: 1.4rem;
}

.actions {
  display: flex;
  gap: 0.6rem;
  flex-wrap: wrap;
  margin-top: 0.8rem;
}

.meta-grid {
  margin: 0.8rem 0 0.2rem;
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.7rem 0.9rem;
}

.meta-grid dt {
  color: var(--muted);
  font-size: 0.92rem;
}
.meta-grid dd {
  margin: 0.1rem 0 0;
  font-weight: 650;
}

.viewer {
  border: 1px solid var(--border);
  border-radius: var(--radius);
  background: color-mix(in srgb, var(--surface) 92%, transparent);
  box-shadow: var(--shadow);
  overflow: hidden;
  min-height: 70vh;
}

object {
  width: 100%;
  height: 80vh;
  display: block;
  border: 0;
}

@media (prefers-reduced-motion: reduce) {
  * {
    scroll-behavior: auto !important;
    transition: none !important;
  }
}