:root {
  --navy-950: #07172b;
  --navy-900: #0b1f38;
  --navy-800: #0f2747;
  --navy-700: #173a63;
  --blue-600: #1769d2;
  --blue-500: #2a7de1;
  --blue-100: #eaf3ff;
  --green-600: #117a55;
  --green-100: #e8f7f1;
  --red-600: #b33a42;
  --red-100: #fff0f1;
  --amber-700: #835a09;
  --amber-100: #fff7df;
  --ink: #172234;
  --muted: #5c6a7e;
  --line: #dce3ec;
  --surface: #ffffff;
  --surface-soft: #f6f8fb;
  --background: #f1f4f8;
  --shadow: 0 14px 40px rgba(12, 31, 56, 0.08);
  --radius: 18px;
  --container: 1180px;
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: 132px;
  max-width: 100%;
  overflow-x: hidden;
}

body {
  margin: 0;
  max-width: 100%;
  overflow-x: hidden;
  color: var(--ink);
  background: var(--background);
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", "Noto Sans KR", Arial, sans-serif;
  font-size: 16px;
  line-height: 1.7;
  -webkit-font-smoothing: antialiased;
}

button,
input,
select {
  font: inherit;
}

button,
a,
input,
select {
  outline-color: var(--blue-600);
  outline-offset: 3px;
}

a {
  color: var(--blue-600);
  text-decoration: none;
}

a:hover {
  text-decoration: underline;
}

h1,
h2,
h3,
p {
  margin-top: 0;
}

h1,
h2,
h3 {
  color: var(--navy-900);
  line-height: 1.28;
  letter-spacing: -0.035em;
  word-break: keep-all;
  text-wrap: balance;
}

h1 {
  margin-bottom: 20px;
  font-size: clamp(2.15rem, 4.35vw, 3.4rem);
}

h2 {
  margin-bottom: 12px;
  font-size: clamp(1.65rem, 3.3vw, 2.35rem);
}

h3 {
  margin-bottom: 10px;
  font-size: 1.12rem;
}

code {
  display: block;
  overflow-x: auto;
  padding: 12px 14px;
  border: 1px solid #cfdded;
  border-radius: 9px;
  color: #20466f;
  background: #f0f6fd;
  font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
  font-size: 0.86rem;
  white-space: nowrap;
}

.container {
  width: min(calc(100% - 40px), var(--container));
  min-width: 0;
  margin-inline: auto;
}

.narrow-content {
  max-width: 900px;
}

.skip-link {
  position: fixed;
  top: -100px;
  left: 16px;
  z-index: 100;
  padding: 10px 14px;
  border-radius: 8px;
  color: #fff;
  background: var(--blue-600);
}

.skip-link:focus {
  top: 12px;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  border-bottom: 1px solid #203c5f;
  color: #fff;
  background: rgba(7, 23, 43, 0.97);
  backdrop-filter: blur(14px);
}

.header-main {
  display: flex;
  min-height: 88px;
  align-items: center;
  justify-content: space-between;
  gap: 34px;
  padding-block: 14px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  color: #fff;
  font-size: 1.18rem;
  font-weight: 850;
  letter-spacing: -0.03em;
}

.brand-mark {
  display: block;
  width: 34px;
  height: 34px;
  flex: 0 0 auto;
  border-radius: 9px;
  box-shadow: 0 7px 18px rgba(0, 0, 0, 0.24);
}

.brand:hover {
  text-decoration: none;
}

.brand-subtitle {
  max-width: 380px;
  margin: 4px 0 0;
  color: #b7c5d8;
  font-size: 0.82rem;
  line-height: 1.5;
  word-break: keep-all;
  text-wrap: pretty;
}

.brand-subtitle span,
.hero-title-line {
  display: block;
}

.global-controls {
  display: flex;
  min-width: 0;
  align-items: flex-end;
  justify-content: flex-end;
  gap: 10px;
  flex-wrap: wrap;
}

.global-controls label,
.toolbar label {
  display: grid;
  gap: 4px;
  color: #dce6f3;
  font-size: 0.72rem;
  font-weight: 700;
}

.global-controls input,
.global-controls select {
  width: 140px;
  min-height: 38px;
  padding: 6px 9px;
  border: 1px solid #3e5b7e;
  border-radius: 7px;
  color: #fff;
  background: #122e50;
}

.storage-actions {
  display: flex;
  gap: 7px;
}

.storage-status {
  flex-basis: 100%;
  margin: 0;
  color: #9fb1c8;
  font-size: 0.72rem;
  text-align: right;
}

.tool-nav {
  border-top: 1px solid rgba(255, 255, 255, 0.08);
}

.tool-nav-scroll {
  display: flex;
  gap: 5px;
  max-width: 100%;
  overflow-x: auto;
  padding-block: 8px;
  scrollbar-width: thin;
  contain: layout paint;
}

.tool-nav a {
  flex: 0 0 auto;
  padding: 7px 10px;
  border-radius: 7px;
  color: #cad6e5;
  font-size: 0.78rem;
  font-weight: 700;
  white-space: nowrap;
}

.tool-nav a:hover,
.tool-nav a:focus-visible {
  color: #fff;
  background: #173a63;
  text-decoration: none;
}

.hero {
  padding: 92px 0 74px;
  color: #fff;
  background:
    radial-gradient(circle at 84% 20%, rgba(42, 125, 225, 0.32), transparent 28%),
    linear-gradient(135deg, var(--navy-950), var(--navy-800));
}

.hero-grid {
  display: grid;
  grid-template-columns: minmax(0, 1.35fr) minmax(290px, 0.65fr);
  align-items: center;
  gap: 70px;
}

.hero h1 {
  color: #fff;
}

.hero-title-line {
  white-space: nowrap;
}

.kicker {
  margin-bottom: 12px;
  color: #70aef3;
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.hero-lead {
  max-width: 760px;
  margin-bottom: 28px;
  color: #c6d3e3;
  font-size: 1.12rem;
  word-break: keep-all;
  text-wrap: pretty;
}

.hero-actions,
.form-actions,
.toolbar {
  display: flex;
  align-items: center;
  gap: 10px;
}

.wrap {
  flex-wrap: wrap;
}

.button {
  display: inline-flex;
  min-height: 46px;
  align-items: center;
  justify-content: center;
  padding: 10px 18px;
  border: 1px solid transparent;
  border-radius: 9px;
  cursor: pointer;
  font-weight: 780;
  transition: transform 0.18s ease, background-color 0.18s ease, border-color 0.18s ease;
}

.button:hover {
  transform: translateY(-1px);
  text-decoration: none;
}

.button-primary {
  color: #fff;
  background: var(--blue-600);
}

.button-primary:hover {
  background: #0e58b2;
}

.button-secondary {
  border-color: #728aa8;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

.button-small {
  min-height: 38px;
  padding: 7px 12px;
  border-color: #b9c9dc;
  color: var(--navy-800);
  background: #fff;
  font-size: 0.82rem;
}

.button-ghost {
  border-color: #cbd5e1;
  color: #42526a;
  background: #f7f9fc;
}

.button-danger {
  border-color: #efc4c7;
  color: var(--red-600);
  background: var(--red-100);
}

.hero-notice {
  max-width: 720px;
  margin: 22px 0 0;
  color: #aebed1;
  font-size: 0.82rem;
  word-break: keep-all;
  text-wrap: pretty;
}

.hero-dashboard {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 12px;
  padding: 22px;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 22px;
  background: rgba(255, 255, 255, 0.08);
  box-shadow: 0 22px 50px rgba(0, 0, 0, 0.2);
}

.hero-stat {
  padding: 14px;
  border-radius: 12px;
  background: rgba(4, 20, 39, 0.48);
}

.hero-stat span,
.hero-stat strong {
  display: block;
}

.hero-stat span {
  color: #78e1ba;
  font-size: 1.55rem;
  font-weight: 850;
}

.hero-stat strong {
  color: #d6e1ed;
  font-size: 0.78rem;
}

.mini-chart {
  display: flex;
  height: 120px;
  grid-column: 1 / -1;
  align-items: flex-end;
  gap: 9px;
  padding: 18px;
  border-radius: 12px;
  background: rgba(4, 20, 39, 0.48);
}

.mini-chart i {
  flex: 1;
  min-height: 12px;
  border-radius: 6px 6px 2px 2px;
  background: linear-gradient(180deg, #71e0ba, #2a7de1);
}

.tool-section,
.content-section {
  padding: 78px 0;
}

.tool-section.alt,
.content-section.alt {
  background: #fff;
}

.section-heading {
  display: grid;
  max-width: 980px;
  grid-template-columns: 52px 1fr;
  gap: 16px;
  margin-bottom: 28px;
}

.section-heading p:last-child {
  margin-bottom: 0;
  color: var(--muted);
  word-break: keep-all;
  text-wrap: pretty;
}

.section-number {
  display: grid;
  width: 44px;
  height: 44px;
  place-items: center;
  border-radius: 11px;
  color: var(--blue-600);
  background: var(--blue-100);
  font-size: 0.83rem;
  font-weight: 850;
}

.calculator-card {
  display: grid;
  min-width: 0;
  grid-template-columns: minmax(280px, 0.8fr) minmax(0, 1.35fr);
  gap: 0;
  overflow: hidden;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}

.wide-card {
  min-width: 0;
  padding: 28px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: #fff;
  box-shadow: var(--shadow);
}

.input-panel,
.result-panel {
  min-width: 0;
  padding: 28px;
}

.input-panel {
  border-right: 1px solid var(--line);
  background: #f8fafc;
}

.result-panel {
  background: #fff;
}

.form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.form-grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

label {
  min-width: 0;
  color: #334157;
  font-size: 0.86rem;
  font-weight: 720;
  word-break: keep-all;
}

label input,
label select,
.input-table input,
.input-table select,
.toolbar input,
.toolbar select {
  display: block;
  width: 100%;
  min-width: 0;
  min-height: 43px;
  margin-top: 6px;
  padding: 8px 10px;
  border: 1px solid #b9c5d4;
  border-radius: 8px;
  color: var(--ink);
  background: #fff;
}

input:focus,
select:focus {
  border-color: var(--blue-600);
  box-shadow: 0 0 0 3px rgba(23, 105, 210, 0.13);
}

.form-actions {
  flex-wrap: wrap;
  margin-top: 20px;
}

.toolbar {
  margin-bottom: 18px;
}

.toolbar label {
  color: #334157;
}

.toolbar label input,
.toolbar label select {
  min-width: 170px;
}

.check-label {
  display: flex !important;
  min-height: 43px;
  align-items: center;
  gap: 7px !important;
  padding: 8px 11px;
  border: 1px solid #cbd5e1;
  border-radius: 8px;
  background: #fff;
}

.check-label input {
  width: auto;
  min-width: auto;
  min-height: auto;
  margin: 0;
}

.metric-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 12px;
  margin-bottom: 22px;
}

.metric-grid.four {
  grid-template-columns: repeat(4, minmax(0, 1fr));
}

.metric-grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.metric {
  min-width: 0;
  padding: 17px;
  border: 1px solid #e0e7ef;
  border-radius: 12px;
  background: var(--surface-soft);
}

.metric span,
.metric strong {
  display: block;
}

.metric span {
  margin-bottom: 6px;
  color: var(--muted);
  font-size: 0.77rem;
  font-weight: 720;
}

.metric strong {
  max-width: 100%;
  overflow-wrap: anywhere;
  color: var(--navy-900);
  font-size: clamp(1.02rem, 2vw, 1.38rem);
  font-variant-numeric: tabular-nums;
}

.table-wrap {
  width: 100%;
  min-width: 0;
  max-width: 100%;
  overflow-x: auto;
  border: 1px solid var(--line);
  border-radius: 11px;
  background: #fff;
  overscroll-behavior-inline: contain;
  -webkit-overflow-scrolling: touch;
  contain: layout paint;
}

.input-table-wrap {
  margin-bottom: 12px;
}

table {
  width: 100%;
  min-width: 650px;
  border-collapse: collapse;
  font-variant-numeric: tabular-nums;
}

th,
td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--line);
  text-align: right;
  white-space: nowrap;
}

th {
  color: #35445b;
  background: #f3f6fa;
  font-size: 0.78rem;
  font-weight: 800;
}

th:first-child,
td:first-child {
  text-align: left;
}

tbody tr:last-child td,
tbody tr:last-child th {
  border-bottom: 0;
}

.input-table {
  min-width: 850px;
}

.input-table input,
.input-table select {
  min-height: 38px;
  margin: 0;
  padding: 6px 8px;
}

.input-table td:nth-child(1) input {
  min-width: 125px;
}

.input-table td:nth-child(3) select {
  min-width: 150px;
}

.row-delete {
  width: 34px;
  min-height: 34px;
  padding: 4px;
  border: 1px solid #e7c3c6;
  border-radius: 7px;
  cursor: pointer;
  color: var(--red-600);
  background: var(--red-100);
}

.ratio-bars {
  margin-bottom: 20px;
}

.ratio-track {
  display: flex;
  height: 18px;
  overflow: hidden;
  border-radius: 999px;
  background: #e8edf3;
}

.ratio-principal {
  background: var(--blue-600);
}

.ratio-profit {
  background: #3bb489;
}

.ratio-legend {
  display: flex;
  justify-content: space-between;
  gap: 12px;
  margin-top: 7px;
  color: var(--muted);
  font-size: 0.76rem;
}

.result-note {
  margin: 20px 0 0;
  padding: 14px 16px;
  border-left: 4px solid #8ea2bb;
  border-radius: 0 8px 8px 0;
  color: #586579;
  background: #f3f5f8;
  font-size: 0.8rem;
}

.interpretation {
  margin: 18px 0;
  padding: 15px 17px;
  border: 1px solid #cbdcf2;
  border-radius: 10px;
  color: #294a72;
  background: var(--blue-100);
}

.inline-warning {
  margin: 12px 0;
  color: var(--red-600);
  font-size: 0.82rem;
  font-weight: 720;
}

.field-hint,
.muted {
  color: var(--muted);
}

.field-hint,
.muted,
.result-note,
.interpretation,
.method-card p,
.info-card p,
.legal-card,
.warning-box p {
  word-break: keep-all;
  text-wrap: pretty;
}

.currency-code {
  color: inherit;
  font: inherit;
}

.field-hint {
  font-size: 0.8rem;
}

.split-results {
  display: grid;
  grid-template-columns: minmax(0, 1.45fr) minmax(240px, 0.55fr);
  gap: 24px;
  margin-top: 22px;
}

.split-results > *,
.content-grid > * {
  min-width: 0;
  max-width: 100%;
}

.bar-list {
  display: grid;
  gap: 11px;
}

.bar-item {
  display: grid;
  grid-template-columns: minmax(100px, 0.7fr) minmax(100px, 1.3fr) 54px;
  align-items: center;
  gap: 10px;
  font-size: 0.78rem;
}

.bar-track {
  height: 10px;
  overflow: hidden;
  border-radius: 999px;
  background: #e7edf4;
}

.bar-fill {
  height: 100%;
  border-radius: inherit;
  background: linear-gradient(90deg, var(--blue-600), #55b69a);
}

.bar-value {
  text-align: right;
  font-variant-numeric: tabular-nums;
}

.saved-list {
  display: grid;
  gap: 10px;
}

.saved-card {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
  padding: 13px 15px;
  border: 1px solid var(--line);
  border-radius: 10px;
  background: #f8fafc;
}

.saved-card p {
  margin: 2px 0 0;
  color: var(--muted);
  font-size: 0.78rem;
}

.saved-card-actions {
  display: flex;
  gap: 7px;
}

.score-layout {
  display: flex;
  align-items: center;
  gap: 24px;
  margin-bottom: 24px;
}

.score-ring {
  display: grid;
  flex: 0 0 auto;
  width: 128px;
  height: 128px;
  place-content: center;
  border: 11px solid #dce7f4;
  border-top-color: var(--blue-600);
  border-radius: 50%;
  text-align: center;
  background: #fff;
}

.score-ring strong {
  color: var(--navy-900);
  font-size: 2rem;
  line-height: 1;
}

.score-ring span {
  color: var(--muted);
  font-size: 0.75rem;
}

.profile-form {
  display: grid;
  gap: 13px;
}

.content-grid {
  display: grid;
  gap: 18px;
}

.content-grid.two {
  grid-template-columns: repeat(2, minmax(0, 1fr));
}

.content-grid.three {
  grid-template-columns: repeat(3, minmax(0, 1fr));
}

.method-card,
.info-card,
.legal-card,
.warning-box {
  min-width: 0;
  padding: 23px;
  border: 1px solid var(--line);
  border-radius: 14px;
  background: #fff;
}

.method-card p,
.info-card p,
.legal-card,
.warning-box p {
  color: #425069;
}

.warning-box {
  margin-top: 22px;
  border-color: #eadba9;
  background: var(--amber-100);
}

.legal-card li + li {
  margin-top: 10px;
}

.spacer-top {
  margin-top: 22px;
}

.site-footer {
  padding: 42px 0 26px;
  color: #d2dceb;
  background: var(--navy-950);
}

.footer-grid {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 28px;
}

.footer-grid strong {
  color: #fff;
}

.footer-grid p {
  margin: 5px 0 0;
  color: #98abc1;
  font-size: 0.82rem;
}

.footer-grid nav {
  display: flex;
  flex-wrap: wrap;
  justify-content: flex-end;
  gap: 10px 18px;
}

.footer-grid a {
  color: #dbe5f1;
  font-size: 0.84rem;
}

.footer-notice {
  margin-top: 25px;
  padding-top: 18px;
  border-top: 1px solid #233b58;
  color: #8599b1;
  font-size: 0.76rem;
}

@media (max-width: 1000px) {
  .header-main {
    align-items: flex-start;
    flex-direction: column;
  }

  .global-controls {
    justify-content: flex-start;
  }

  .storage-status {
    text-align: left;
  }

  .hero-grid,
  .calculator-card {
    grid-template-columns: 1fr;
  }

  .hero-dashboard {
    max-width: 570px;
  }

  .input-panel {
    border-right: 0;
    border-bottom: 1px solid var(--line);
  }

  .metric-grid.four {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .split-results {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 700px) {
  html {
    scroll-padding-top: 170px;
  }

  .container {
    width: min(calc(100% - 28px), var(--container));
  }

  .header-main {
    min-height: auto;
    gap: 14px;
  }

  .brand-subtitle {
    max-width: 100%;
    font-size: 0.78rem;
  }

  .global-controls {
    display: grid;
    width: 100%;
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .global-controls input,
  .global-controls select {
    width: 100%;
  }

  .storage-actions,
  .storage-status {
    grid-column: 1 / -1;
  }

  .storage-actions {
    overflow-x: auto;
  }

  .hero {
    padding: 60px 0 48px;
  }

  .hero h1 {
    font-size: clamp(1.62rem, 8.3vw, 2.35rem);
    line-height: 1.19;
    letter-spacing: -0.05em;
  }

  .hero-title-line {
    white-space: normal;
  }

  .hero-lead {
    font-size: 1rem;
    line-height: 1.75;
  }

  .hero-grid {
    gap: 34px;
  }

  .hero-actions {
    align-items: stretch;
    flex-direction: column;
  }

  .hero-dashboard {
    padding: 15px;
  }

  .tool-section,
  .content-section {
    padding: 54px 0;
  }

  .section-heading {
    grid-template-columns: 1fr;
  }

  .section-heading p:last-child {
    font-size: 0.94rem;
    line-height: 1.78;
  }

  .calculator-card,
  .wide-card {
    max-width: 100%;
    overflow: hidden;
  }

  .input-panel,
  .result-panel,
  .wide-card {
    padding: 19px;
  }

  .form-grid,
  .form-grid.two,
  .metric-grid,
  .metric-grid.two,
  .metric-grid.four,
  .content-grid.two,
  .content-grid.three {
    grid-template-columns: 1fr;
  }

  label {
    font-size: 0.9rem;
    line-height: 1.5;
  }

  .toolbar {
    align-items: stretch;
    flex-direction: column;
  }

  .toolbar > *,
  .toolbar label input,
  .toolbar label select {
    width: 100%;
  }

  .score-layout {
    align-items: flex-start;
    flex-direction: column;
  }

  .score-ring {
    width: 108px;
    height: 108px;
  }

  .bar-item {
    grid-template-columns: 95px minmax(80px, 1fr) 48px;
    gap: 7px;
  }

  .saved-card,
  .footer-grid {
    align-items: flex-start;
    flex-direction: column;
  }

  .footer-grid nav {
    justify-content: flex-start;
  }

  th,
  td {
    padding: 10px 11px;
  }
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  *,
  *::before,
  *::after {
    transition-duration: 0.01ms !important;
  }
}