:root {
  --brand: #e92e2f;
  --brand-dark: #b81820;
  --brand-soft: #fff0f0;
  --brand-tint: rgba(233, 46, 47, 0.12);
  --cream: #fff7ee;
  --paper: #ffffff;
  --paper-soft: #fffafa;
  --ink: #251313;
  --ink-soft: #4b2d2d;
  --muted: #826666;
  --line: rgba(233, 46, 47, 0.16);
  --neutral-line: rgba(37, 19, 19, 0.10);
  --success: #1e7d3a;
  --shadow: 0 24px 70px rgba(70, 19, 19, 0.11);
  --radius: 24px;
}

* { box-sizing: border-box; }

html { scroll-behavior: smooth; }

body {
  margin: 0;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", Arial, sans-serif;
  color: var(--ink);
  background:
    radial-gradient(circle at 6% -6%, rgba(233, 46, 47, 0.18), transparent 30rem),
    radial-gradient(circle at 98% 8%, rgba(233, 46, 47, 0.10), transparent 32rem),
    linear-gradient(135deg, #fffafa 0%, var(--cream) 56%, #ffe8e3 100%);
  min-height: 100vh;
}

body::before {
  content: "";
  position: fixed;
  inset: 0;
  pointer-events: none;
  opacity: 0.55;
  background-image: linear-gradient(rgba(233, 46, 47, 0.045) 1px, transparent 1px), linear-gradient(90deg, rgba(233, 46, 47, 0.045) 1px, transparent 1px);
  background-size: 34px 34px;
}

button, input, textarea, select { font: inherit; }

.app-shell {
  position: relative;
  display: grid;
  grid-template-columns: 330px minmax(0, 1fr);
  gap: 24px;
  width: min(1440px, 100%);
  min-height: 100vh;
  margin: 0 auto;
  padding: 24px;
}

.sidebar {
  position: sticky;
  top: 24px;
  height: calc(100vh - 48px);
  overflow: auto;
  background: rgba(255, 255, 255, 0.86);
  backdrop-filter: blur(18px);
  border: 1px solid var(--neutral-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 22px;
}

.brand-lockup {
  display: flex;
  align-items: center;
  gap: 14px;
  margin-bottom: 18px;
}

.brand-mark {
  min-width: 92px;
  height: 46px;
  display: grid;
  place-items: center;
  border-radius: 14px;
  background: var(--brand);
  color: #fff;
  font-size: 18px;
  font-weight: 800;
  letter-spacing: -0.02em;
  box-shadow: 0 14px 30px rgba(233, 46, 47, 0.24);
}

.brand-kicker, .eyebrow {
  margin: 0 0 5px;
  color: var(--brand);
  text-transform: uppercase;
  letter-spacing: 0.13em;
  font-size: 10px;
  font-weight: 900;
}

.brand-lockup h1, .topbar h2, .form-heading h3 {
  margin: 0;
  font-weight: 850;
  letter-spacing: -0.045em;
}

.brand-lockup h1 { font-size: 24px; }
.topbar h2 { font-size: clamp(32px, 5vw, 54px); line-height: 0.98; max-width: 780px; }
.form-heading h3 { font-size: 30px; line-height: 1.05; }

.taobun-card {
  position: relative;
  overflow: hidden;
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  color: #fff;
  border-radius: 24px;
  padding: 19px;
  margin: 18px 0;
  box-shadow: 0 18px 40px rgba(233, 46, 47, 0.20);
}

.taobun-card::after {
  content: "TAOBUN";
  position: absolute;
  right: -8px;
  bottom: -12px;
  color: rgba(255, 255, 255, 0.08);
  font-size: 42px;
  font-weight: 900;
  letter-spacing: -0.08em;
}

.card-topline { display: flex; align-items: center; gap: 8px; position: relative; z-index: 1; }
.taobun-card p { position: relative; z-index: 1; margin: 10px 0 0; color: rgba(255, 255, 255, 0.82); line-height: 1.55; }
.status-dot { width: 10px; height: 10px; border-radius: 99px; background: #fff; box-shadow: 0 0 0 5px rgba(255, 255, 255, 0.16); }

.menu { display: grid; gap: 8px; }
.menu button {
  width: 100%;
  border: 1px solid transparent;
  background: transparent;
  text-align: left;
  padding: 14px;
  border-radius: 17px;
  cursor: pointer;
  color: var(--muted);
  transition: 0.18s ease;
}
.menu button:hover { background: var(--brand-soft); color: var(--brand-dark); transform: translateY(-1px); }
.menu button.active {
  background: var(--brand);
  color: #fff;
  border-color: rgba(255, 255, 255, 0.20);
  box-shadow: 0 14px 30px rgba(233, 46, 47, 0.18);
}
.menu strong { display: block; font-size: 15px; }
.menu small { display: block; margin-top: 4px; color: inherit; opacity: 0.74; }

.mobile-form-picker { display: none; }
.mobile-form-picker label {
  display: block;
  margin: 0 0 8px;
  color: var(--brand);
  font-size: 12px;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0.12em;
}
.mobile-form-picker select {
  width: 100%;
  border: 1px solid var(--line);
  background: var(--paper);
  color: var(--ink);
  border-radius: 18px;
  padding: 14px 15px;
  outline: none;
}

.sidebar-footer {
  margin-top: 18px;
  padding: 14px;
  border: 1px dashed var(--line);
  border-radius: 18px;
  color: var(--muted);
  background: rgba(255, 240, 240, 0.45);
}
.sidebar-footer span { display: block; font-size: 12px; }
.sidebar-footer strong { display: block; color: var(--ink); margin-top: 3px; }

.content { min-width: 0; display: grid; align-content: start; gap: 22px; }

.topbar {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 18px;
  padding: 32px 4px 8px;
}
.title-block > p:not(.eyebrow) { margin: 12px 0 0; color: var(--muted); font-size: 17px; }
.top-actions { display: flex; gap: 10px; flex-wrap: wrap; }

.primary-btn, .ghost-btn {
  border-radius: 999px;
  padding: 14px 19px;
  cursor: pointer;
  font-weight: 850;
  transition: 0.18s ease;
}
.primary-btn { border: 0; background: var(--brand); color: #fff; box-shadow: 0 16px 34px rgba(233, 46, 47, 0.24); }
.primary-btn:hover, .ghost-btn:hover { transform: translateY(-1px); }
.ghost-btn { background: rgba(255, 255, 255, 0.90); color: var(--brand-dark); border: 1px solid var(--line); }

.summary-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
}
.summary-card, .form-panel {
  background: rgba(255, 255, 255, 0.88);
  border: 1px solid var(--neutral-line);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}
.summary-card { padding: 19px; }
.summary-card span, .field label span { color: var(--muted); font-size: 13px; }
.summary-card strong { display: block; font-size: 22px; margin: 6px 0; letter-spacing: -0.035em; }
.summary-card small { color: var(--muted); }

.summary-grid.date-only {
  grid-template-columns: minmax(0, 1fr);
}

.summary-grid.date-only .summary-card {
  max-width: 100%;
}

.highlight-card {
  background: linear-gradient(135deg, var(--brand), var(--brand-dark));
  color: #fff;
}
.highlight-card span, .highlight-card small { color: rgba(255, 255, 255, 0.78); }

.form-panel { padding: 27px; }
.form-heading {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 16px;
  padding-bottom: 23px;
  border-bottom: 1px solid var(--neutral-line);
}
.form-heading p:not(.eyebrow) { margin: 9px 0 0; color: var(--muted); }
.sheet-badge {
  white-space: nowrap;
  border-radius: 999px;
  padding: 10px 14px;
  background: var(--brand-soft);
  color: var(--brand-dark);
  font-weight: 850;
  font-size: 13px;
  border: 1px solid var(--line);
}

.dynamic-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
  padding-top: 23px;
}
.field.full { grid-column: 1 / -1; }
.field label { display: grid; gap: 8px; }
.field label strong { font-size: 14px; }
.field input, .field select, .field textarea {
  width: 100%;
  border: 1px solid rgba(37, 19, 19, 0.12);
  background: var(--paper-soft);
  color: var(--ink);
  border-radius: 18px;
  padding: 15px 15px;
  outline: none;
  transition: 0.16s ease;
}
.field textarea { min-height: 112px; resize: vertical; }
.field input:focus, .field select:focus, .field textarea:focus {
  border-color: var(--brand);
  background: #fff;
  box-shadow: 0 0 0 4px var(--brand-tint);
}

.calc-note {
  grid-column: 1 / -1;
  background: var(--brand-soft);
  border: 1px dashed rgba(233, 46, 47, 0.42);
  color: var(--brand-dark);
  border-radius: 19px;
  padding: 15px 16px;
  line-height: 1.5;
}

.preview-box {
  display: none;
  align-items: center;
  gap: 14px;
  margin-top: 22px;
  padding: 16px;
  border-radius: 20px;
  background: #f0fbf4;
  border: 1px solid #ccebd6;
  color: #225d34;
}
.preview-box.show { display: flex; }
.preview-icon {
  width: 38px;
  height: 38px;
  display: grid;
  place-items: center;
  border-radius: 50%;
  color: #fff;
  background: var(--success);
  font-weight: 900;
}
.preview-box p { margin: 3px 0 0; }

@media (max-width: 980px) {
  .app-shell { grid-template-columns: 1fr; padding: 14px; }
  .sidebar { position: relative; top: auto; height: auto; }
  .topbar { flex-direction: column; padding-top: 14px; }
  .summary-grid { grid-template-columns: 1fr; }
}

@media (max-width: 640px) {
  .brand-mark { min-width: 86px; height: 43px; border-radius: 13px; font-size: 17px; }
  .mobile-form-picker { display: block; margin: 18px 0; }
  .menu { display: none; }
  .sidebar-footer { display: none; }
  .form-heading { flex-direction: column; }
  .sheet-badge { white-space: normal; }
  .dynamic-form { grid-template-columns: 1fr; }
  .field.full { grid-column: auto; }
  .form-panel { padding: 18px; }
  .top-actions, .primary-btn, .ghost-btn { width: 100%; }
  .top-actions button { justify-content: center; }
  .topbar h2 { font-size: 38px; }
}

/* Mobile-only sticky action bar: keeps desktop layout unchanged */
@media (max-width: 640px) {
  body { padding-bottom: 92px; }

  .top-actions {
    position: fixed;
    left: 14px;
    right: 14px;
    bottom: 14px;
    z-index: 50;
    display: grid;
    grid-template-columns: 0.7fr 1.3fr;
    gap: 10px;
    width: auto;
    padding: 10px;
    border: 1px solid rgba(233, 46, 47, 0.18);
    border-radius: 24px;
    background: rgba(255, 255, 255, 0.94);
    box-shadow: 0 18px 48px rgba(70, 19, 19, 0.18);
    backdrop-filter: blur(18px);
  }

  .top-actions .ghost-btn,
  .top-actions .primary-btn {
    width: 100%;
    min-height: 52px;
    padding: 13px 14px;
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .top-actions .primary-btn {
    box-shadow: 0 12px 28px rgba(233, 46, 47, 0.28);
  }
}