:root {
  --ink: #0d171b;
  --muted: #65727a;
  --line: #d9e1e5;
  --paper: #f4f6f7;
  --panel: #ffffff;
  --blue: #276ef1;
  --teal: #16847d;
  --green: #16783a;
  --red: #c7372f;
  --steel: #43525d;
  --shadow: 0 16px 44px rgba(28, 39, 49, 0.08);
  --max: 1180px;
}

* {
  box-sizing: border-box;
  letter-spacing: 0;
}

body {
  margin: 0;
  background: var(--paper);
  color: var(--ink);
  font-family: "Pretendard", "Noto Sans KR", "Apple SD Gothic Neo", "Malgun Gothic", Arial, sans-serif;
  line-height: 1.55;
}

a {
  color: inherit;
  text-decoration: none;
}

button,
input {
  font: inherit;
}

.portal-shell {
  min-height: 100vh;
}

.portal-header {
  border-bottom: 1px solid var(--line);
  background: rgba(244, 246, 247, 0.92);
  backdrop-filter: blur(14px);
  position: sticky;
  top: 0;
  z-index: 10;
}

.portal-nav {
  width: min(var(--max), calc(100% - 40px));
  min-height: 68px;
  margin: 0 auto;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-weight: 900;
}

.brand-mark {
  width: 34px;
  height: 34px;
  border-radius: 8px;
  display: grid;
  place-items: center;
  background: var(--ink);
  color: #fff;
  font-size: 14px;
}

.nav-actions {
  display: flex;
  align-items: center;
  gap: 10px;
  color: var(--muted);
  font-size: 13px;
  font-weight: 800;
}

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

.login-layout {
  min-height: calc(100vh - 68px);
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(320px, 420px);
  gap: 28px;
  align-items: center;
  padding: 48px 0;
}

.login-copy {
  display: grid;
  gap: 18px;
}

.eyebrow {
  color: var(--teal);
  font-size: 13px;
  font-weight: 900;
}

h1,
h2,
h3 {
  margin: 0;
  line-height: 1.18;
}

h1 {
  max-width: 720px;
  font-size: clamp(38px, 5vw, 68px);
}

.lead {
  max-width: 620px;
  color: var(--muted);
  font-size: 17px;
}

.feature-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 10px;
  max-width: 780px;
}

.feature-card,
.panel,
.report-card,
.kpi-card,
.visual-card,
.impact-board,
.detail-box {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
}

.feature-card {
  padding: 14px;
  display: grid;
  gap: 8px;
}

.feature-card strong {
  font-size: 14px;
}

.feature-card span {
  color: var(--muted);
  font-size: 13px;
}

.login-card {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: var(--panel);
  box-shadow: var(--shadow);
  padding: 24px;
  display: grid;
  gap: 18px;
}

.form-group {
  display: grid;
  gap: 8px;
}

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

.form-group input {
  width: 100%;
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  color: var(--ink);
  padding: 12px 13px;
  outline: none;
}

.form-group input:focus {
  border-color: var(--blue);
  box-shadow: 0 0 0 3px rgba(39, 110, 241, 0.12);
}

.button {
  border: 0;
  border-radius: 8px;
  background: var(--ink);
  color: #fff;
  min-height: 44px;
  padding: 0 16px;
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  font-weight: 900;
  cursor: pointer;
}

.button.secondary {
  border: 1px solid var(--line);
  background: #fff;
  color: var(--ink);
}

.button:disabled {
  cursor: wait;
  opacity: 0.72;
}

.error-box {
  display: none;
  border: 1px solid #f1c6c2;
  border-radius: 8px;
  background: #fff4f2;
  color: var(--red);
  padding: 10px 12px;
  font-size: 13px;
  font-weight: 800;
}

.error-box.is-visible {
  display: block;
}

.page-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 20px;
  padding: 42px 0 22px;
}

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

.report-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 14px;
  padding-bottom: 48px;
}

.report-card {
  padding: 18px;
  display: grid;
  gap: 14px;
}

.report-card h3 {
  font-size: 20px;
}

.report-card p {
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.status-pill {
  width: fit-content;
  border-radius: 999px;
  padding: 5px 9px;
  background: #e7f4ea;
  color: var(--green);
  font-size: 12px;
  font-weight: 900;
}

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 12px;
}

.kpi-card {
  min-height: 138px;
  padding: 16px;
  display: grid;
  align-content: space-between;
  gap: 10px;
}

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

.kpi-value {
  font-size: clamp(24px, 2.7vw, 34px);
  font-weight: 900;
  line-height: 1.05;
}

.kpi-sub {
  color: var(--steel);
  font-size: 12px;
  font-weight: 800;
}

.positive {
  color: var(--green);
}

.negative {
  color: var(--red);
}

.neutral {
  color: var(--steel);
}

.section {
  padding: 18px 0;
}

.section-head {
  display: flex;
  justify-content: space-between;
  align-items: flex-end;
  gap: 16px;
  margin-bottom: 12px;
}

.section-head .note {
  color: var(--muted);
  font-size: 13px;
  text-align: right;
}

.impact-board {
  padding: 18px;
  display: grid;
  grid-template-columns: minmax(230px, 0.75fr) minmax(0, 1.25fr);
  gap: 16px;
  background: #f9fbfc;
}

.impact-total {
  border: 1px solid var(--line);
  border-radius: 8px;
  background: #fff;
  padding: 18px;
  display: grid;
  gap: 10px;
  align-content: center;
}

.impact-total strong {
  font-size: clamp(30px, 4vw, 48px);
  line-height: 1;
}

.waterfall {
  display: grid;
  gap: 12px;
  align-content: center;
}

.impact-row {
  display: grid;
  grid-template-columns: 110px minmax(0, 1fr) 110px;
  gap: 10px;
  align-items: center;
}

.track {
  position: relative;
  height: 28px;
  border-radius: 999px;
  background: #e7edf2;
  overflow: hidden;
}

.track::before {
  content: "";
  position: absolute;
  top: 0;
  bottom: 0;
  left: 50%;
  width: 2px;
  background: rgba(13, 23, 27, 0.18);
}

.bar {
  position: absolute;
  top: 5px;
  bottom: 5px;
  min-width: 8px;
  border-radius: 999px;
}

.bar.positive {
  left: 50%;
  background: var(--green);
}

.bar.negative {
  right: 50%;
  background: var(--red);
}

.impact-amount {
  text-align: right;
  font-weight: 900;
  white-space: nowrap;
}

.visual-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 12px;
}

.visual-card {
  padding: 16px;
  display: grid;
  gap: 14px;
}

.visual-top {
  display: grid;
  grid-template-columns: 42px minmax(0, 1fr);
  gap: 10px;
  align-items: center;
}

.badge {
  width: 42px;
  height: 42px;
  border-radius: 12px;
  display: grid;
  place-items: center;
  background: #edf4ff;
  color: var(--blue);
  font-size: 13px;
  font-weight: 900;
}

.badge.green {
  background: #e7f4ea;
  color: var(--green);
}

.badge.red {
  background: #fdeceb;
  color: var(--red);
}

.signal-stack {
  display: grid;
  gap: 8px;
}

.signal-row {
  display: grid;
  grid-template-columns: 74px minmax(0, 1fr) 76px;
  gap: 8px;
  align-items: center;
  font-size: 12px;
}

.signal-name {
  color: var(--muted);
  font-weight: 900;
}

.signal-track {
  height: 10px;
  border-radius: 999px;
  background: #e7edf2;
  overflow: hidden;
}

.signal-fill {
  display: block;
  height: 100%;
  border-radius: 999px;
}

.signal-fill.positive {
  background: var(--green);
}

.signal-fill.negative {
  background: var(--red);
}

.signal-value {
  text-align: right;
  font-weight: 900;
}

.detail-box {
  padding: 16px;
}

.detail-box summary {
  cursor: pointer;
  font-weight: 900;
}

.product-list {
  display: grid;
  gap: 10px;
  margin-top: 14px;
}

.product-row {
  display: grid;
  grid-template-columns: minmax(0, 1fr) 160px 120px;
  gap: 12px;
  align-items: center;
  border-top: 1px solid var(--line);
  padding-top: 10px;
}

.loading {
  padding: 48px 0;
  color: var(--muted);
  font-weight: 800;
}

@media (max-width: 980px) {
  .login-layout,
  .impact-board,
  .visual-grid,
  .report-grid {
    grid-template-columns: 1fr;
  }

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

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

  .feature-grid,
  .kpi-grid {
    grid-template-columns: 1fr;
  }

  .impact-row,
  .product-row {
    grid-template-columns: 1fr;
  }

  .impact-amount,
  .signal-value,
  .section-head .note {
    text-align: left;
  }

  .signal-row {
    grid-template-columns: 70px minmax(0, 1fr);
  }

  .signal-value {
    grid-column: 2;
  }
}