:root {
  --ink: #10231f;
  --ink-soft: #1a3530;
  --mist: #d8ebe4;
  --paper: #f3f7f4;
  --accent: #2f8f74;
  --accent-deep: #1f6b56;
  --warn: #b55b3a;
  --line: rgba(16, 35, 31, 0.12);
  --shadow: 0 24px 60px rgba(8, 20, 18, 0.18);
  --font-display: "Fraunces", Georgia, serif;
  --font-body: "Outfit", system-ui, sans-serif;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  background: var(--paper);
  line-height: 1.5;
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(1200px 600px at 10% -10%, rgba(47, 143, 116, 0.22), transparent 60%),
    radial-gradient(900px 500px at 90% 0%, rgba(16, 35, 31, 0.12), transparent 55%),
    linear-gradient(180deg, #eaf4ef 0%, #f3f7f4 45%, #e7f0eb 100%);
}

.atmosphere::after {
  content: "";
  position: absolute;
  inset: 0;
  opacity: 0.35;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='160' height='160' viewBox='0 0 160 160'%3E%3Cpath fill='none' stroke='%2310231f' stroke-opacity='0.05' d='M0 40h160M0 80h160M0 120h160M40 0v160M80 0v160M120 0v160'/%3E%3C/svg%3E");
}

.site-header,
main,
.site-footer {
  width: min(1120px, calc(100% - 2rem));
  margin-inline: auto;
}

.site-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 1rem;
  padding: 1.75rem 0 0.5rem;
  animation: rise 0.7s ease both;
}

.brand {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(1.8rem, 4vw, 2.6rem);
  font-weight: 700;
  letter-spacing: -0.03em;
  line-height: 1.05;
}

.flow-pills {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  list-style: none;
  padding: 0;
  margin: 1.25rem 0 0;
  animation: rise 0.9s ease 0.12s both;
}

.flow-pills li {
  padding: 0.35rem 0.75rem;
  border: 1px solid var(--line);
  border-radius: 999px;
  font-size: 0.85rem;
  letter-spacing: 0.02em;
  color: var(--ink-soft);
  background: rgba(255, 255, 255, 0.45);
}

.flow-pills li:not(:last-child)::after {
  content: "→";
  margin-left: 0.55rem;
  color: var(--accent);
}

.brand-sub {
  margin: 0.2rem 0 0;
  color: rgba(16, 35, 31, 0.65);
  font-weight: 300;
  font-size: 0.95rem;
}

.header-actions {
  display: flex;
  align-items: end;
  gap: 0.75rem;
  flex-wrap: wrap;
}

.mode-toggle {
  display: grid;
  gap: 0.25rem;
  font-size: 0.8rem;
  color: rgba(16, 35, 31, 0.7);
}

.hero {
  padding: 2rem 0 1.25rem;
  animation: rise 0.8s ease 0.08s both;
}

.hero h1 {
  margin: 0;
  max-width: 14ch;
  font-family: var(--font-display);
  font-size: clamp(2rem, 5vw, 3.4rem);
  line-height: 1.05;
  letter-spacing: -0.03em;
}

.lede {
  margin: 0.85rem 0 0;
  max-width: 42rem;
  font-size: 1.05rem;
  color: rgba(16, 35, 31, 0.72);
}

.toolbar {
  display: grid;
  grid-template-columns: 2fr repeat(4, minmax(0, 1fr));
  gap: 0.75rem;
  padding: 1rem;
  border: 1px solid var(--line);
  background: rgba(255, 255, 255, 0.55);
  backdrop-filter: blur(8px);
  animation: rise 0.85s ease 0.12s both;
}

.field {
  display: grid;
  gap: 0.3rem;
}

.field.grow {
  min-width: 0;
}

label {
  font-size: 0.78rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  color: rgba(16, 35, 31, 0.6);
}

input,
select,
textarea {
  width: 100%;
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
  padding: 0.65rem 0.75rem;
  font: inherit;
  outline: none;
}

input:focus,
select:focus,
textarea:focus {
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgba(47, 143, 116, 0.18);
}

.status-row {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  align-items: baseline;
  margin: 1rem 0 0.5rem;
  min-height: 1.5rem;
}

#statusText {
  margin: 0;
  font-size: 0.95rem;
  color: rgba(16, 35, 31, 0.7);
}

.hint {
  margin: 0;
  font-size: 0.85rem;
  color: rgba(16, 35, 31, 0.55);
}

.hidden {
  display: none !important;
}

.catalog {
  display: grid;
  gap: 0;
  border-top: 1px solid var(--line);
  animation: rise 0.9s ease 0.16s both;
}

.book-row {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  padding: 1.15rem 0.25rem;
  border-bottom: 1px solid var(--line);
  transition: background 0.2s ease, transform 0.2s ease;
}

.book-row:hover {
  background: rgba(255, 255, 255, 0.45);
  transform: translateX(2px);
}

.book-title {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.35rem;
  letter-spacing: -0.02em;
}

.book-meta {
  margin: 0.35rem 0 0;
  color: rgba(16, 35, 31, 0.62);
  font-size: 0.95rem;
}

.book-desc {
  margin: 0.45rem 0 0;
  max-width: 48rem;
  color: rgba(16, 35, 31, 0.78);
}

.row-actions {
  display: flex;
  gap: 0.5rem;
  align-items: start;
}

.btn {
  border: 1px solid transparent;
  padding: 0.65rem 1rem;
  font: inherit;
  font-weight: 500;
  cursor: pointer;
  transition: transform 0.15s ease, background 0.15s ease, border-color 0.15s ease;
}

.btn:hover {
  transform: translateY(-1px);
}

.btn:active {
  transform: translateY(0);
}

.btn-primary {
  background: var(--accent);
  color: #fff;
}

.btn-primary:hover {
  background: var(--accent-deep);
}

.btn-ghost {
  background: transparent;
  border-color: var(--line);
  color: var(--ink);
}

.btn-danger {
  background: transparent;
  border-color: rgba(181, 91, 58, 0.35);
  color: var(--warn);
}

.pager {
  display: flex;
  justify-content: center;
  align-items: center;
  gap: 1rem;
  padding: 1.5rem 0 2.5rem;
}

.empty {
  padding: 2.5rem 0.25rem;
  color: rgba(16, 35, 31, 0.6);
}

.site-footer {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  padding: 1rem 0 2.5rem;
  border-top: 1px solid var(--line);
  color: rgba(16, 35, 31, 0.55);
  font-size: 0.9rem;
}

.site-footer a {
  color: var(--accent-deep);
}

.dialog {
  border: 1px solid var(--line);
  padding: 0;
  width: min(460px, calc(100% - 2rem));
  background: #fff;
  box-shadow: var(--shadow);
  color: var(--ink);
}

.dialog::backdrop {
  background: rgba(10, 22, 20, 0.45);
  backdrop-filter: blur(2px);
}

.dialog form {
  display: grid;
  gap: 0.85rem;
  padding: 1.25rem;
}

.dialog header {
  display: flex;
  justify-content: space-between;
  align-items: center;
}

.dialog h2 {
  margin: 0;
  font-family: var(--font-display);
  font-size: 1.5rem;
}

.icon-close {
  border: 0;
  background: transparent;
  font-size: 1.5rem;
  line-height: 1;
  cursor: pointer;
  color: rgba(16, 35, 31, 0.55);
}

.dialog-actions {
  display: flex;
  justify-content: flex-end;
  gap: 0.5rem;
  margin-top: 0.25rem;
}

.toast {
  position: fixed;
  right: 1rem;
  bottom: 1rem;
  background: var(--ink);
  color: var(--mist);
  padding: 0.85rem 1rem;
  box-shadow: var(--shadow);
  z-index: 40;
  animation: toast-in 0.25s ease both;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@keyframes toast-in {
  from {
    opacity: 0;
    transform: translateY(8px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

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

  .field.grow {
    grid-column: 1 / -1;
  }
}

@media (max-width: 640px) {
  .site-header {
    flex-direction: column;
    align-items: stretch;
  }

  .header-actions {
    justify-content: space-between;
  }

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

  .book-row {
    grid-template-columns: 1fr;
  }

  .row-actions {
    justify-content: flex-start;
  }
}