:root {
  --bg-top: #f4efe6;
  --bg-bottom: #dce9ef;
  --surface: rgba(255, 252, 247, 0.84);
  --text: #1d2f2f;
  --muted: #5e726f;
  --line: rgba(29, 47, 47, 0.12);
  --brand: #2c8f7e;
  --brand-deep: #1b5c52;
  --accent: #d4973f;
  --shadow: 0 22px 50px rgba(31, 56, 53, 0.12);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: "Gowun Dodum", sans-serif;
  color: var(--text);
  background:
    radial-gradient(circle at top left, rgba(255, 255, 255, 0.92), transparent 28%),
    linear-gradient(135deg, var(--bg-top) 0%, #eef5f4 48%, var(--bg-bottom) 100%);
}

button,
input,
select {
  font: inherit;
}

button {
  cursor: pointer;
}

.app-shell {
  max-width: 1480px;
  margin: 0 auto;
  padding: 36px 24px 48px;
}

.session-bar {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  gap: 12px;
  margin-bottom: 18px;
}

.back-link {
  display: inline-flex;
  align-items: center;
  padding: 11px 16px;
  border: 1px solid var(--line);
  border-radius: 999px;
  background: var(--surface);
  color: var(--text);
  text-decoration: none;
  box-shadow: 0 12px 28px rgba(42, 90, 57, 0.08);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.back-link:hover,
.back-link:focus-visible {
  transform: translateY(-2px);
  box-shadow: 0 16px 32px rgba(42, 90, 57, 0.12);
}

.session-actions {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px;
}

.sync-status,
.storage-mode,
.user-pill {
  display: inline-flex;
  align-items: center;
  min-height: 44px;
  padding: 10px 14px;
  border-radius: 999px;
  border: 1px solid var(--line);
  background: var(--surface);
  color: var(--muted);
  box-shadow: 0 12px 28px rgba(42, 90, 57, 0.08);
}

.storage-mode {
  font-weight: 700;
  color: var(--text);
}

.sync-status.is-error {
  color: #8e4d2b;
  border-color: rgba(172, 99, 64, 0.26);
  background: rgba(255, 241, 233, 0.86);
}

.hero {
  display: grid;
  grid-template-columns: 1.1fr 1fr;
  gap: 24px;
  margin-top: 18px;
  margin-bottom: 12px;
}

.hero-copy,
.panel {
  border: 1px solid var(--line);
  border-radius: 30px;
  background: var(--surface);
  backdrop-filter: blur(18px);
  box-shadow: var(--shadow);
  padding: 30px;
}

.eyebrow {
  margin: 0 0 10px;
  font-family: "Space Grotesk", sans-serif;
  font-size: 0.8rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: var(--brand-deep);
}

.hero h1 {
  margin: 0;
  font-size: clamp(2rem, 3vw, 3.7rem);
  line-height: 1.06;
}

.hero p {
  margin: 14px 0 0;
  color: var(--muted);
  line-height: 1.7;
}

.stack-layout {
  display: grid;
  gap: 14px;
}

.panel-header h2,
.year-title,
.month-title {
  margin: 0;
}

.panel-header p {
  margin: 8px 0 0;
  color: var(--muted);
}

.stack-form,
.month-form,
.asset-form {
  display: grid;
  gap: 14px;
}

.asset-form[hidden] {
  display: none;
}

.field {
  display: grid;
  gap: 8px;
}

.field span {
  font-size: 0.95rem;
  color: var(--muted);
}

.field input,
.field select {
  width: 100%;
  padding: 14px 16px;
  border: 1px solid var(--line);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.84);
  color: var(--text);
  outline: none;
}

.field input:focus,
.field select:focus {
  box-shadow: 0 0 0 3px rgba(44, 143, 126, 0.16);
}

.top-controls {
  display: grid;
  grid-template-columns: minmax(320px, 520px) minmax(220px, 280px);
  gap: 18px;
  align-items: end;
  margin-top: 18px;
}

.hero-controls {
  align-self: stretch;
}

.inline-form {
  grid-template-columns: minmax(0, 1fr) auto;
  align-items: end;
}

.view-year-field {
  max-width: 280px;
}

.primary-button,
.secondary-button,
.ghost-button,
.delete-button,
.auth-link-button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: 0;
  border-radius: 18px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  text-decoration: none;
}

#logoutButton[hidden] {
  display: none;
}

.primary-button,
.secondary-button,
.ghost-button {
  padding: 13px 16px;
}

.primary-button {
  background: linear-gradient(135deg, var(--brand) 0%, #35aa96 100%);
  color: white;
  box-shadow: 0 16px 28px rgba(44, 143, 126, 0.24);
}

.secondary-button,
.auth-link-button {
  background: rgba(44, 143, 126, 0.12);
  color: var(--brand-deep);
}

.ghost-button {
  background: rgba(29, 47, 47, 0.06);
  color: var(--muted);
}

.delete-button {
  padding: 9px 13px;
  background: rgba(133, 52, 30, 0.08);
  color: #8b4b34;
}

.primary-button:hover,
.primary-button:focus-visible,
.secondary-button:hover,
.secondary-button:focus-visible,
.ghost-button:hover,
.ghost-button:focus-visible,
.delete-button:hover,
.delete-button:focus-visible,
.auth-link-button:hover,
.auth-link-button:focus-visible {
  transform: translateY(-1px);
}

.year-board {
  margin-top: 22px;
}

.year-card,
.month-card,
.empty-state {
  border: 1px solid var(--line);
  border-radius: 24px;
  background: linear-gradient(180deg, rgba(255, 255, 255, 0.94), rgba(247, 251, 250, 0.96));
}

.year-card {
  display: grid;
  gap: 18px;
  padding: 22px;
}

.year-card-top,
.month-card-top {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  align-items: start;
}

.year-label,
.month-label {
  margin: 0;
  color: var(--muted);
}

.month-category-totals {
  display: flex;
  flex-wrap: wrap;
  gap: 8px;
  align-items: flex-start;
}

.category-pill {
  display: inline-flex;
  align-items: center;
  align-self: flex-start;
  flex: 0 0 auto;
  padding: 7px 11px;
  border-radius: 999px;
  background: rgba(212, 151, 63, 0.14);
  color: #83581b;
  font-size: 0.85rem;
  line-height: 1;
  white-space: nowrap;
}

.months-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
  gap: 18px;
}

.month-card {
  display: grid;
  gap: 16px;
  padding: 18px;
}

.month-heading {
  display: grid;
  gap: 6px;
}

.month-buttons {
  display: grid;
  justify-items: end;
  gap: 8px;
}

.month-total-label {
  margin: 0;
  font-size: 0.82rem;
  color: var(--muted);
}

.month-total,
.asset-amount {
  font-family: "Space Grotesk", sans-serif;
}

.month-total {
  font-size: 1.35rem;
  color: var(--brand-deep);
}

.month-items {
  display: grid;
  gap: 12px;
}

.month-items[hidden] {
  display: none;
}

.asset-item {
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 12px;
  padding: 14px 15px;
  border: 1px solid rgba(29, 47, 47, 0.08);
  border-radius: 18px;
  background: rgba(255, 255, 255, 0.76);
}

.asset-item-main {
  display: flex;
  align-items: center;
  gap: 10px;
  min-width: 0;
}

.asset-category {
  display: inline-flex;
  align-items: center;
  padding: 4px 10px;
  border-radius: 999px;
  background: rgba(44, 143, 126, 0.12);
  color: var(--brand-deep);
  font-size: 0.82rem;
}

.asset-detail {
  min-width: 0;
  word-break: break-word;
}

.asset-actions {
  display: flex;
  align-items: center;
  flex-shrink: 0;
  gap: 10px;
}

.month-empty-card {
  display: flex;
  align-items: center;
  gap: 14px;
  padding: 18px;
  border: 1px dashed rgba(44, 143, 126, 0.22);
  border-radius: 20px;
  background:
    radial-gradient(circle at top left, rgba(44, 143, 126, 0.08), transparent 38%),
    rgba(255, 255, 255, 0.72);
}

.month-empty-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 18px;
  background: rgba(44, 143, 126, 0.12);
  color: var(--brand-deep);
  font-family: "Space Grotesk", sans-serif;
  font-size: 1.2rem;
  font-weight: 700;
  flex-shrink: 0;
}

.month-empty-title {
  display: block;
  color: var(--text);
}

.month-empty-copy {
  margin: 6px 0 0;
  color: var(--muted);
  line-height: 1.55;
}

.empty-state {
  padding: 32px 24px;
  text-align: center;
  color: var(--muted);
}

@media (max-width: 1024px) {
  .hero {
    grid-template-columns: 1fr;
  }

  .top-controls {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 640px) {
  .app-shell {
    padding: 24px 16px 36px;
  }

  .hero-copy,
  .panel {
    padding: 22px;
    border-radius: 24px;
  }

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

  .year-card-top,
  .month-card-top,
  .asset-item {
    flex-direction: column;
  }

  .month-buttons,
  .asset-actions {
    justify-items: start;
  }

  .month-empty-card {
    align-items: flex-start;
  }

  .asset-item-main,
  .asset-actions {
    width: 100%;
  }
}