:root {
  --bg: #f2f5f9;
  --bg-2: #e6ecf3;
  --ink: #0f1c2e;
  --muted: #5f6f7e;
  --accent: #11866f;
  --accent-2: #0b1f3a;
  --surface: #ffffff;
  --surface-strong: #f7f9fc;
  --stroke: rgba(15, 28, 46, 0.1);
  --shadow: 0 18px 36px rgba(11, 31, 58, 0.12);
  --radius: 16px;
  --radius-sm: 10px;
  --font-display: "IBM Plex Serif", serif;
  --font-body: "IBM Plex Sans", sans-serif;
}

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

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font-body);
  color: var(--ink);
  background: linear-gradient(135deg, var(--bg) 0%, var(--bg-2) 100%);
  position: relative;
  overflow-x: hidden;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image: radial-gradient(
      rgba(11, 31, 58, 0.08) 1px,
      transparent 0
    ),
    radial-gradient(rgba(17, 134, 111, 0.1), transparent 60%);
  background-size: 120px 120px, 600px 600px;
  background-position: 0 0, 85% -10%;
  opacity: 0.35;
  pointer-events: none;
  z-index: 0;
}

.app-shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  display: grid;
  grid-template-columns: 260px 1fr;
}

.sidebar {
  position: sticky;
  top: 0;
  height: 100vh;
  padding: 28px 20px;
  background: linear-gradient(180deg, #0b1f3a 0%, #0f2a4d 100%);
  color: #d5deea;
  border-right: 1px solid rgba(255, 255, 255, 0.08);
  display: flex;
  flex-direction: column;
  gap: 24px;
}

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

.brand-mark {
  width: 42px;
  height: 42px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: linear-gradient(135deg, #11866f 0%, #0f6f60 100%);
  color: #ffffff;
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: 0.02em;
}

.brand strong {
  display: block;
  font-size: 0.95rem;
  color: #ffffff;
}

.brand span {
  display: block;
  font-size: 0.78rem;
  color: rgba(255, 255, 255, 0.7);
}

.nav {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.nav-item {
  text-decoration: none;
  color: rgba(213, 222, 234, 0.8);
  padding: 10px 12px 10px 14px;
  border-radius: 12px;
  border: 1px solid transparent;
  font-weight: 500;
  transition: background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.nav-item:hover {
  background: rgba(17, 134, 111, 0.2);
  color: #ffffff;
}

.nav-item.is-active {
  background: linear-gradient(90deg, rgba(17, 134, 111, 0.35), transparent);
  color: #ffffff;
  border-color: rgba(17, 134, 111, 0.4);
  box-shadow: 0 12px 24px rgba(11, 31, 58, 0.25);
}

.sidebar-card {
  margin-top: auto;
  background: rgba(255, 255, 255, 0.08);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: 14px;
  padding: 16px;
  font-size: 0.9rem;
  color: rgba(255, 255, 255, 0.78);
}

.page {
  position: relative;
  z-index: 1;
  width: 100%;
  max-width: 1180px;
  margin: 0 auto;
  padding: 32px 32px 64px;
  display: flex;
  flex-direction: column;
  gap: 22px;
}

.topbar {
  display: grid;
  grid-template-columns: minmax(0, 1.1fr) minmax(0, 0.9fr);
  gap: 24px;
  align-items: stretch;
  background: var(--surface);
  border: 1px solid var(--stroke);
  border-radius: var(--radius);
  padding: 24px;
  box-shadow: 0 16px 32px rgba(11, 31, 58, 0.08);
}

.topbar-text h1 {
  font-family: var(--font-display);
  font-size: clamp(2rem, 2vw + 1.6rem, 2.7rem);
  margin: 12px 0 10px;
  letter-spacing: -0.01em;
}

.topbar-text p {
  margin: 0 0 18px;
  color: var(--muted);
  font-size: 1rem;
}

.eyebrow {
  text-transform: uppercase;
  font-weight: 600;
  letter-spacing: 0.12em;
  font-size: 0.72rem;
  color: var(--accent);
}

.chips {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
}

.chip {
  padding: 6px 12px;
  border-radius: 999px;
  border: 1px solid rgba(17, 134, 111, 0.25);
  background: rgba(17, 134, 111, 0.08);
  font-size: 0.82rem;
  color: var(--accent-2);
}

.summary-card {
  background: linear-gradient(140deg, #ffffff 0%, #f0f6f4 100%);
  border: 1px solid rgba(17, 134, 111, 0.18);
  border-radius: var(--radius);
  padding: 22px;
  box-shadow: var(--shadow);
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.summary-head h2 {
  margin: 6px 0 0;
  font-size: 1.15rem;
}

.summary-total {
  font-family: var(--font-display);
  font-size: 1.9rem;
  color: var(--accent-2);
}

.summary-grid {
  display: grid;
  grid-template-columns: 1fr auto;
  row-gap: 8px;
  column-gap: 12px;
  font-size: 0.93rem;
  color: var(--muted);
}

.panel {
  background: var(--surface);
  border-radius: var(--radius);
  padding: 22px;
  border: 1px solid var(--stroke);
  box-shadow: 0 14px 28px rgba(11, 31, 58, 0.06);
}

.panel-head {
  margin-bottom: 16px;
}

.panel-head h2 {
  margin: 0 0 6px;
  font-family: var(--font-display);
  font-size: 1.35rem;
}

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

.panel-head--row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  flex-wrap: wrap;
}

.form-grid {
  display: grid;
  gap: 16px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.field {
  display: flex;
  flex-direction: column;
  gap: 6px;
  font-size: 0.95rem;
  color: var(--muted);
}

input[type="number"],
input[type="date"] {
  padding: 10px 12px;
  border-radius: var(--radius-sm);
  border: 1px solid rgba(15, 28, 46, 0.14);
  font-size: 0.98rem;
  font-family: var(--font-body);
  background: #f8fbff;
  color: var(--ink);
}

input[type="number"]:focus,
input[type="date"]:focus {
  outline: 2px solid rgba(17, 134, 111, 0.3);
  border-color: rgba(17, 134, 111, 0.5);
}

.actions {
  display: flex;
  gap: 10px;
}

.btn {
  padding: 10px 16px;
  border-radius: 10px;
  border: none;
  background: linear-gradient(135deg, #11866f 0%, #0f6f60 100%);
  color: #ffffff;
  font-weight: 600;
  cursor: pointer;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  box-shadow: 0 12px 22px rgba(17, 134, 111, 0.25);
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: 0 16px 26px rgba(17, 134, 111, 0.3);
}

.btn-ghost {
  background: transparent;
  border: 1px solid rgba(15, 28, 46, 0.16);
  color: var(--accent-2);
  box-shadow: none;
}

.table-wrap {
  overflow-x: auto;
  border-radius: var(--radius);
  border: 1px solid rgba(11, 31, 58, 0.16);
  background: #ffffff;
}

.calc-table {
  width: 100%;
  border-collapse: collapse;
  min-width: 980px;
  font-size: 0.92rem;
}

.calc-table thead th {
  background: #0b1f3a;
  color: #f2f6fb;
  text-align: left;
  padding: 12px;
  font-weight: 600;
  letter-spacing: 0.02em;
}

.calc-table tbody td {
  padding: 12px;
  border-bottom: 1px solid rgba(11, 31, 58, 0.08);
  vertical-align: middle;
}

.calc-table tbody tr:hover {
  background: rgba(17, 134, 111, 0.05);
}

.calc-table input {
  width: 100%;
  min-width: 120px;
}

.calc-table .index {
  font-weight: 600;
  color: var(--accent-2);
}

.calc-table .numeric {
  font-variant-numeric: tabular-nums;
  white-space: nowrap;
}

.calc-table .remove-btn {
  border: none;
  background: transparent;
  color: var(--accent);
  font-weight: 600;
  cursor: pointer;
}

.summary-cards {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
  gap: 16px;
}

.mini-card {
  padding: 18px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--stroke);
  background: var(--surface-strong);
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.mini-label {
  font-size: 0.85rem;
  color: var(--muted);
}

.mini-card strong {
  font-size: 1.3rem;
  color: var(--accent-2);
  font-variant-numeric: tabular-nums;
}

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

.reveal {
  opacity: 0;
  transform: translateY(12px);
  animation: reveal 0.6s ease forwards;
}

.topbar {
  animation-delay: 0.05s;
}

.panel:nth-of-type(1) {
  animation-delay: 0.1s;
}

.panel:nth-of-type(2) {
  animation-delay: 0.18s;
}

.panel:nth-of-type(3) {
  animation-delay: 0.26s;
}

@keyframes reveal {
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 1100px) {
  .app-shell {
    grid-template-columns: 1fr;
  }

  .sidebar {
    position: relative;
    height: auto;
    border-right: none;
    border-bottom: 1px solid rgba(11, 31, 58, 0.12);
    flex-direction: row;
    align-items: center;
    flex-wrap: wrap;
  }

  .nav {
    flex-direction: row;
    flex-wrap: wrap;
    gap: 8px;
  }

  .sidebar-card {
    width: 100%;
    margin-top: 12px;
  }
}

@media (max-width: 960px) {
  .topbar {
    grid-template-columns: 1fr;
  }

  .actions {
    width: 100%;
    justify-content: flex-start;
  }
}

@media (max-width: 640px) {
  .page {
    padding: 24px 16px 48px;
  }

  .panel,
  .topbar {
    padding: 18px;
  }

  .summary-total {
    font-size: 1.6rem;
  }
}

@media (prefers-reduced-motion: reduce) {
  .reveal {
    animation: none;
    opacity: 1;
    transform: none;
  }

  .btn,
  .nav-item {
    transition: none;
  }
}