:root {
  --bg: #f5f7fb;
  --card: #ffffff;
  --text: #0f172a;
  --muted: #64748b;
  --line: rgba(15, 23, 42, .10);
  --shadow: 0 18px 50px rgba(15, 23, 42, .10);
  --radius: 18px;

  --primary: #2459ff;
  --primary2: #1236d6;
  --dark: #0b1220;

  --good: #059669;
  --bad: #ef4444;
}

* {
  box-sizing: border-box;
}

html,
body {
  height: 100%;
}

body {
  margin: 0;
  font-family: ui-sans-serif, system-ui, -apple-system, Segoe UI, Roboto, "Apple SD Gothic Neo", "Noto Sans KR", "Malgun Gothic", sans-serif;
  color: var(--text);
  background:
    radial-gradient(1100px 520px at 10% 5%, rgba(36, 89, 255, .14), transparent 55%),
    radial-gradient(900px 520px at 90% 10%, rgba(5, 150, 105, .10), transparent 55%),
    var(--bg);
}

.container {
  max-width: 980px;
  margin: 26px auto 60px;
  padding: 0 14px;
}

/* ====== HERO CARD (상단) ====== */
.hero-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 22px;
  box-shadow: var(--shadow);
  overflow: hidden;
}

.hero-head {
  padding: 22px 22px 10px;
}

.hero-title-row {
  display: flex;
  align-items: center;
  gap: 10px;
}

.hero-title {
  margin: 0;
  font-size: 28px;
  letter-spacing: -0.5px;
}

.hero-sub {
  margin: 8px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.badge {
  display: inline-flex;
  align-items: center;
  padding: 6px 10px;
  border-radius: 999px;
  font-size: 12px;
  font-weight: 800;
  border: 1px solid var(--line);
  background: rgba(15, 23, 42, .03);
  color: var(--muted);
}

.badge--open {
  color: #0b7a3e;
  border-color: rgba(5, 150, 105, .25);
  background: rgba(5, 150, 105, .08);
}

.hero-body {
  padding: 8px 22px 22px;
}

.metrics {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

@media (max-width: 640px) {
  .metrics {
    grid-template-columns: 1fr;
  }
}

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

.metric-icon {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  display: grid;
  place-items: center;
  flex: 0 0 auto;
  border: 1px solid rgba(15, 23, 42, .06);
}

.metric-icon svg {
  width: 22px;
  height: 22px;
  color: #0f172a;
  opacity: .85;
}

.metric-icon--blue {
  background: rgba(36, 89, 255, .10);
}

.metric-icon--purple {
  background: rgba(124, 58, 237, .10);
}

.metric-icon--green {
  background: rgba(5, 150, 105, .10);
}

.metric-icon--orange {
  background: rgba(249, 115, 22, .12);
}

.metric-k {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 4px;
}

.metric-v {
  font-size: 18px;
  font-weight: 900;
  letter-spacing: -0.2px;
}

.progress-wrap {
  margin-top: 14px;
}

.progress-head {
  display: flex;
  justify-content: space-between;
  align-items: center;
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 8px;
}

.progress-bar {
  background: rgba(36, 89, 255, .10);
  border-radius: 999px;
  height: 10px;
  overflow: hidden;
  border: 1px solid rgba(36, 89, 255, .18);
}

.progress-fill {
  height: 100%;
  width: 0%;
  background: linear-gradient(90deg, var(--primary), var(--primary2));
  border-radius: 999px;
}

.cta {
  margin-top: 16px;
  width: 100%;
  border: none;
  border-radius: 14px;
  padding: 14px 14px;
  font-size: 15px;
  font-weight: 900;
  color: #fff;
  background: linear-gradient(180deg, #0f172a, #050b16);
  cursor: pointer;
}

.cta:active {
  transform: translateY(1px);
}

/* ====== SECTION / CARD ====== */
.section {
  margin-top: 18px;
  padding-top: 6px;
}

.section-head {
  margin: 18px 2px 12px;
}

.section-head--row {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 12px;
}

@media (max-width:640px) {
  .section-head--row {
    align-items: flex-start;
    flex-direction: column;
  }
}

.section-title {
  margin: 0;
  font-size: 18px;
  letter-spacing: -0.25px;
}

.section-desc {
  margin: 7px 0 0;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.45;
}

.grid-2 {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

@media (max-width: 900px) {
  .grid-2 {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 28px rgba(15, 23, 42, .06);
  padding: 16px;
}

.card-title {
  margin: 0 0 10px;
  font-size: 15px;
  letter-spacing: -0.2px;
}

.steps {
  margin: 0;
  padding-left: 18px;
  color: var(--text);
  line-height: 1.55;
  font-size: 13px;
}

.steps li {
  margin: 8px 0;
}

.steps b {
  font-weight: 900;
}

.callout {
  margin-top: 12px;
  padding: 12px;
  border-radius: 14px;
  border: 1px solid rgba(36, 89, 255, .20);
  background: rgba(36, 89, 255, .06);
  display: flex;
  gap: 10px;
}

.callout-k {
  font-weight: 900;
  color: var(--primary2);
  flex: 0 0 auto;
}

.callout-v {
  color: var(--text);
  font-size: 13px;
  line-height: 1.45;
}

.kv {
  margin: 0;
}

.kv-row {
  display: grid;
  grid-template-columns: 140px 1fr;
  gap: 10px;
  padding: 10px 0;
  border-top: 1px solid rgba(15, 23, 42, .06);
}

.kv-row:first-child {
  border-top: none;
  padding-top: 0;
}

.kv dt {
  color: var(--muted);
  font-size: 13px;
}

.kv dd {
  margin: 0;
  font-weight: 800;
  font-size: 13px;
}

.muted {
  color: var(--muted);
  font-weight: 600;
}

/* ====== CALCULATOR ====== */
.pill {
  font-size: 12px;
  color: var(--muted);
  border: 1px solid var(--line);
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(15, 23, 42, .03);
  white-space: nowrap;
}

.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}

@media (max-width: 980px) {
  .calc-grid {
    grid-template-columns: 1fr;
  }
}

.calc-card {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  box-shadow: 0 10px 28px rgba(15, 23, 42, .06);
  overflow: hidden;
}

.calc-hd {
  padding: 14px 16px;
  border-bottom: 1px solid rgba(15, 23, 42, .08);
  display: flex;
  justify-content: space-between;
  align-items: center;
  background: rgba(15, 23, 42, .02);
}

.calc-title {
  font-weight: 900;
  font-size: 14px;
}

.calc-badge {
  color: var(--muted);
  font-size: 12px;
  font-weight: 800;
}

.calc-bd {
  padding: 14px 16px;
}

.calc-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 10px;
  align-items: center;
  margin-bottom: 10px;
}

@media (max-width: 520px) {
  .calc-row {
    grid-template-columns: 1fr;
  }
}

.calc-row label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

.calc-bd input,
.calc-bd select {
  width: 100%;
  border: 1px solid rgba(15, 23, 42, .14);
  background: #fff;
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  outline: none;
  font-size: 14px;
}

.calc-bd input:focus,
.calc-bd select:focus {
  border-color: rgba(36, 89, 255, .55);
  box-shadow: 0 0 0 3px rgba(36, 89, 255, .12);
}

.calc-opt {
  border: 1px solid rgba(15, 23, 42, .10);
  border-radius: 14px;
  padding: 10px 12px;
  background: rgba(15, 23, 42, .02);
  margin-top: 8px;
}

.calc-opt summary {
  cursor: pointer;
  color: var(--muted);
  font-weight: 900;
  font-size: 13px;
}

.calc-optBody {
  margin-top: 10px;
}

.btns {
  display: flex;
  gap: 10px;
  margin-top: 10px;
  flex-wrap: wrap;
}

.btn {
  border: 1px solid rgba(15, 23, 42, .14);
  background: #fff;
  color: var(--text);
  padding: 10px 12px;
  border-radius: 12px;
  font-weight: 900;
  cursor: pointer;
}

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

.btn--primary {
  border-color: rgba(36, 89, 255, .25);
  background: rgba(36, 89, 255, .10);
  color: #1236d6;
}

.btn--dark {
  width: 100%;
  border: none;
  background: linear-gradient(180deg, #0f172a, #050b16);
  color: #fff;
  padding: 13px 12px;
  border-radius: 14px;
  font-size: 14px;
}

.btn-danger {
  border: 1px solid rgba(239, 68, 68, .25);
  background: rgba(239, 68, 68, .10);
  color: #ef4444;
}

.btn-danger:hover {
  background: rgba(239, 68, 68, .20);
}

.hint {
  margin-top: 10px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

.kpi {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 10px;
}

@media (max-width: 520px) {
  .kpi {
    grid-template-columns: 1fr;
  }
}

.box {
  background: rgba(15, 23, 42, .02);
  border: 1px solid rgba(15, 23, 42, .10);
  border-radius: 16px;
  padding: 12px;
}

.box--span {
  grid-column: 1 / -1;
}

.box .k {
  color: var(--muted);
  font-size: 12px;
  margin-bottom: 6px;
  font-weight: 800;
}

.box .v {
  font-size: 18px;
  font-weight: 1000;
  letter-spacing: -0.2px;
}

.box .s {
  margin-top: 6px;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.4;
}

.v--good {
  color: var(--good);
}

.table-wrap {
  margin-top: 12px;
}

.table-title {
  font-weight: 900;
  font-size: 13px;
  margin-bottom: 8px;
}

.tax-table {
  width: 100%;
  border-collapse: collapse;
  border: 1px solid rgba(15, 23, 42, .10);
  border-radius: 14px;
  overflow: hidden;
}

.tax-table th,
.tax-table td {
  padding: 10px 10px;
  border-bottom: 1px solid rgba(15, 23, 42, .08);
  font-size: 12px;
  text-align: left;
}

.tax-table th {
  background: rgba(15, 23, 42, .03);
  color: var(--muted);
  font-weight: 900;
}

.tax-table tr:last-child td {
  border-bottom: none;
}

.tax-table td:nth-child(2) {
  text-align: center;
  width: 70px;
}

.tax-table .formula {
  color: var(--muted);
}

/* ====== FAQ ====== */
.faq {
  display: flex;
  flex-direction: column;
  gap: 10px;
}

.faq-item {
  background: var(--card);
  border: 1px solid var(--line);
  border-radius: 16px;
  box-shadow: 0 10px 28px rgba(15, 23, 42, .06);
  padding: 12px 14px;
}

.faq-item summary {
  cursor: pointer;
  font-weight: 900;
  font-size: 14px;
  outline: none;
}

.faq-body {
  margin-top: 10px;
  color: var(--muted);
  font-size: 13px;
  line-height: 1.55;
}

.footer-note {
  margin-top: 14px;
  color: var(--muted);
  font-size: 12px;
  line-height: 1.55;
}

/* ====== MODAL + TOAST ====== */
.modal {
  position: fixed;
  inset: 0;
  display: none;
  z-index: 50;
}

.modal.is-open {
  display: block;
}

.modal-dim {
  position: absolute;
  inset: 0;
  background: rgba(2, 6, 23, .55);
}

.modal-card {
  position: relative;
  width: min(520px, calc(100% - 28px));
  margin: 10vh auto 0;
  background: var(--card);
  border: 1px solid rgba(255, 255, 255, .12);
  border-radius: 18px;
  box-shadow: 0 30px 90px rgba(2, 6, 23, .35);
  overflow: hidden;
}

.modal-hd {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 16px;
  border-bottom: 1px solid rgba(15, 23, 42, .10);
}

.modal-title {
  font-weight: 1000;
}

.icon-btn {
  border: none;
  background: transparent;
  font-size: 22px;
  cursor: pointer;
  line-height: 1;
  padding: 6px 10px;
  border-radius: 10px;
}

.icon-btn:hover {
  background: rgba(15, 23, 42, .04);
}

.modal-bd {
  padding: 14px 16px 16px;
}

.form-row {
  display: flex;
  flex-direction: column;
  gap: 8px;
  margin-bottom: 12px;
}

.form-row label {
  color: var(--muted);
  font-size: 13px;
  font-weight: 900;
}

.control {
  border: 1px solid rgba(15, 23, 42, .14);
  background: #fff;
  padding: 10px 12px;
  border-radius: 12px;
  outline: none;
  font-size: 14px;
}

.control:focus {
  border-color: rgba(36, 89, 255, .55);
  box-shadow: 0 0 0 3px rgba(36, 89, 255, .12);
}

.check {
  display: flex;
  gap: 10px;
  align-items: flex-start;
  margin: 8px 0;
  font-size: 13px;
  color: var(--text);
}

.check input {
  margin-top: 2px;
}

.toast {
  position: fixed;
  left: 50%;
  bottom: 18px;
  transform: translateX(-50%);
  background: rgba(15, 23, 42, .92);
  color: #fff;
  padding: 12px 20px;
  border-radius: 12px;
  font-size: 15px;
  font-weight: 900;
  box-shadow: 0 18px 60px rgba(2, 6, 23, .35);
  opacity: 0;
  pointer-events: none;
  transition: opacity .18s ease, transform .18s ease;
  z-index: 60;
}

.toast.show {
  opacity: 1;
  transform: translateX(-50%) translateY(-3px);
}

.toast--error {
  background: rgba(239, 68, 68, 0.95);
  /* Red */
}