:root {
  --bg: #f6f8fb;
  --surface: #ffffff;
  --surface-soft: #f2f5f9;
  --ink: #17222d;
  --muted: #617180;
  --border: #dbe3ec;
  --accent: #0b7d6a;
  --accent-hover: #096b59;
  --chip: #e8f4f1;
  --danger: #b53b3b;
  --shadow-sm: 0 2px 10px rgba(20, 34, 46, 0.06);
  --shadow-md: 0 8px 20px rgba(20, 34, 46, 0.08);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  color: var(--ink);
  font-family: "Avenir Next", "IBM Plex Sans", "Nunito Sans", "Segoe UI", sans-serif;
  background:
    radial-gradient(circle at 100% 0%, #ecf9f5 0%, transparent 40%),
    linear-gradient(180deg, #f9fbfd 0%, var(--bg) 50%, #f3f6fa 100%);
  line-height: 1.5;
}

a {
  color: #0b5f8e;
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

.topbar {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid var(--border);
  background: rgba(255, 255, 255, 0.9);
  backdrop-filter: blur(10px);
}

.topbar-inner {
  max-width: 980px;
  margin: 0 auto;
  padding: 0.8rem 1rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.6rem;
  flex-wrap: wrap;
}

.brand {
  font-size: 1.03rem;
  font-weight: 800;
  letter-spacing: 0.02em;
  color: var(--ink);
}

.main-nav {
  display: flex;
  gap: 0.45rem;
  overflow-x: auto;
  padding-bottom: 0.15rem;
}

.main-nav a {
  flex: 0 0 auto;
  padding: 0.45rem 0.75rem;
  border-radius: 999px;
  border: 1px solid transparent;
  color: #2d3a47;
  font-size: 0.93rem;
}

.main-nav a:hover {
  text-decoration: none;
  background: var(--surface-soft);
  border-color: var(--border);
}

.container {
  max-width: 980px;
  margin: 0 auto;
  padding: 0.9rem 0.75rem 2rem;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 14px;
  box-shadow: var(--shadow-sm);
  padding: 0.9rem;
}

.narrow {
  max-width: 460px;
  margin: 0.5rem auto;
}

.panel-head {
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 0.75rem;
  margin-bottom: 0.8rem;
}

.panel-head h1 {
  margin: 0;
  font-size: 1.2rem;
}

.panel-sub {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.messages {
  list-style: none;
  margin: 0 0 0.8rem;
  padding: 0;
}

.message {
  border: 1px solid #b8dbff;
  background: #ebf6ff;
  color: #15466c;
  border-radius: 10px;
  padding: 0.65rem 0.75rem;
}

.form-grid {
  display: grid;
  gap: 0.7rem;
  margin-bottom: 1rem;
}

.form-grid p {
  margin: 0;
  display: grid;
  gap: 0.35rem;
}

label {
  font-size: 0.9rem;
  color: #33485b;
  font-weight: 600;
}

input,
textarea,
select,
button {
  width: 100%;
  font: inherit;
  border-radius: 10px;
  border: 1px solid var(--border);
  min-height: 44px;
}

input,
textarea,
select {
  padding: 0.62rem 0.7rem;
  background: #fff;
}

textarea {
  resize: vertical;
  min-height: 72px;
}

input:focus,
textarea:focus,
select:focus {
  outline: 2px solid #cde9e1;
  border-color: #82cbb9;
}

button {
  padding: 0.62rem 0.85rem;
  cursor: pointer;
  color: #fff;
  background: var(--accent);
  border-color: var(--accent);
  font-weight: 700;
}

button:hover {
  background: var(--accent-hover);
  border-color: var(--accent-hover);
}

.link-btn {
  width: auto;
  min-height: 38px;
  background: #fff;
  color: var(--ink);
  border: 1px solid var(--border);
  padding: 0.45rem 0.7rem;
}

.link-btn:hover {
  background: var(--surface-soft);
  border-color: #c7d2df;
}

.filter-row {
  display: flex;
  gap: 0.45rem;
  overflow-x: auto;
  padding-bottom: 0.2rem;
  margin-bottom: 0.9rem;
}

.chip {
  white-space: nowrap;
  border-radius: 999px;
  border: 1px solid var(--border);
  background: #fff;
  color: #2f3f4f;
  padding: 0.4rem 0.75rem;
  font-size: 0.88rem;
}

.chip.active {
  background: var(--chip);
  border-color: #8fcebf;
  color: #155146;
}

.cards {
  display: grid;
  gap: 0.75rem;
}

.card {
  border: 1px solid var(--border);
  border-radius: 12px;
  background: #fff;
  padding: 0.85rem;
}

.card:hover {
  box-shadow: var(--shadow-md);
}

.card h2 {
  margin: 0 0 0.35rem;
  font-size: 1rem;
  line-height: 1.35;
}

.card.compact {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.65rem;
}

.meta {
  font-size: 0.86rem;
  color: var(--muted);
  margin: 0.2rem 0 0.65rem;
}

.actions {
  display: flex;
  gap: 0.45rem;
  margin-bottom: 0.55rem;
}

.actions form {
  margin: 0;
}

.note-form {
  margin-bottom: 0.65rem;
  display: grid;
  gap: 0.35rem;
}

.tag-row {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  gap: 0.35rem;
}

.tag-row form {
  margin: 0;
}

.tag-row .chip {
  min-height: 36px;
  width: auto;
}

.tag-row .chip.active {
  border-color: #b9d9d2;
}

.tag-add-form {
  display: flex;
  gap: 0.35rem;
}

.tag-add-form select,
.tag-add-form button {
  width: auto;
  min-height: 36px;
}

.empty-state {
  padding: 1rem;
  border-radius: 10px;
  background: var(--surface-soft);
  border: 1px dashed #ccd6e2;
  color: var(--muted);
  font-size: 0.92rem;
}

.pagination {
  margin-top: 0.95rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.5rem;
  font-size: 0.92rem;
}

.pagination a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 38px;
  padding: 0.35rem 0.7rem;
  border: 1px solid var(--border);
  border-radius: 8px;
  background: #fff;
}

.pagination a:hover {
  text-decoration: none;
  background: var(--surface-soft);
}

@media (min-width: 768px) {
  .container {
    padding: 1.2rem 1rem 2.2rem;
  }

  .panel {
    padding: 1.15rem;
  }

  .cards {
    grid-template-columns: 1fr 1fr;
  }
}