:root {
  --bg: #f4f7fb;
  --surface: #ffffff;
  --surface-alt: #eef3fb;
  --text: #152238;
  --muted: #5a6780;
  --primary: #0b5bd3;
  --primary-ink: #ffffff;
  --accent: #00a76f;
  --danger: #c62828;
  --border: #d9e2ef;
  --shadow: 0 10px 26px rgba(11, 34, 66, 0.08);
  --radius: 14px;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  padding: 0;
}

body {
  font-family: "Segoe UI", Tahoma, Geneva, Verdana, sans-serif;
  background: radial-gradient(circle at 15% 0%, #eaf2ff 0%, var(--bg) 40%) fixed;
  color: var(--text);
  line-height: 1.5;
}

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

a:hover {
  text-decoration: underline;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: 10;
  background: rgba(244, 247, 251, 0.95);
  border-bottom: 1px solid var(--border);
  backdrop-filter: blur(8px);
}

.nav-wrap {
  max-width: 1120px;
  margin: 0 auto;
  padding: 12px 16px;
  display: flex;
  align-items: center;
  gap: 14px;
  justify-content: space-between;
}

.brand {
  font-weight: 700;
  letter-spacing: 0.3px;
}

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

.nav-links a {
  padding: 6px 10px;
  border-radius: 8px;
}

.nav-links a:hover {
  background: var(--surface-alt);
  text-decoration: none;
}

.container {
  max-width: 1120px;
  margin: 0 auto;
  padding: 20px 16px 44px;
}

.hero {
  background: linear-gradient(135deg, #0f3578, #0b5bd3);
  color: #ffffff;
  border-radius: var(--radius);
  padding: 28px 20px;
  box-shadow: var(--shadow);
  margin-bottom: 18px;
}

.grid {
  display: grid;
  gap: 16px;
}

.grid-2 {
  grid-template-columns: repeat(auto-fit, minmax(260px, 1fr));
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 16px;
  box-shadow: var(--shadow);
}

.card h2,
.card h3 {
  margin-top: 0;
}

.form-grid {
  display: grid;
  gap: 12px;
  grid-template-columns: repeat(auto-fit, minmax(220px, 1fr));
}

.field {
  display: flex;
  flex-direction: column;
  gap: 4px;
}

label {
  font-size: 0.92rem;
  font-weight: 600;
}

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

input,
select,
textarea {
  width: 100%;
  padding: 9px 10px;
  border-radius: 10px;
  border: 1px solid var(--border);
  background: #fff;
}

textarea {
  min-height: 130px;
}

button {
  border: none;
  border-radius: 10px;
  padding: 10px 14px;
  cursor: pointer;
}

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

.btn-primary {
  background: var(--primary);
  color: var(--primary-ink);
}

.btn-secondary {
  background: var(--surface-alt);
  color: var(--text);
  border: 1px solid var(--border);
}

.error {
  color: var(--danger);
  font-size: 0.86rem;
  min-height: 1rem;
}

.warning {
  color: #9a6700;
  font-size: 0.86rem;
}

.kpi {
  font-size: 1.7rem;
  font-weight: 700;
  margin: 8px 0;
}

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

.table-wrap {
  overflow-x: auto;
}

table {
  width: 100%;
  border-collapse: collapse;
}

th,
td {
  text-align: left;
  border-bottom: 1px solid var(--border);
  padding: 7px 6px;
  font-size: 0.92rem;
}

.progress-bar {
  width: 100%;
  height: 18px;
  border-radius: 999px;
  background: #d7e2f2;
  position: relative;
  overflow: hidden;
}

.progress-fill {
  height: 100%;
  background: linear-gradient(90deg, var(--accent), #30c48f);
}

.marker-track {
  width: 100%;
  height: 14px;
  border-radius: 999px;
  background: #d7e2f2;
  position: relative;
  margin: 10px 0;
}

.marker-dot {
  width: 16px;
  height: 16px;
  border-radius: 50%;
  background: var(--primary);
  border: 2px solid #ffffff;
  position: absolute;
  top: -1px;
  transform: translateX(-50%);
}

.site-footer {
  border-top: 1px solid var(--border);
  padding: 18px 16px 30px;
  color: var(--muted);
}

.footer-inner {
  max-width: 1120px;
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: space-between;
}

.tag {
  display: inline-block;
  padding: 3px 7px;
  border: 1px solid var(--border);
  border-radius: 999px;
  font-size: 0.77rem;
  background: var(--surface-alt);
}

.blog-list {
  display: flex;
  flex-direction: column;
  gap: 0;
}

.post-item {
  padding: 18px 4px;
  border-bottom: 1px solid var(--border);
}

.post-item:last-child {
  border-bottom: none;
}

.post-item h2 {
  margin: 0 0 10px;
  font-size: 1.9rem;
  font-weight: 500;
}

.post-item h2 a {
  color: var(--text);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.post-excerpt {
  margin: 0 0 12px;
  color: #7b879a;
  font-size: 1.12rem;
}

.post-meta {
  margin: 0;
  color: #7f8b9e;
  font-size: 1.02rem;
  display: flex;
  align-items: center;
  gap: 8px;
}

.chart-wrap {
  width: 100%;
  overflow-x: auto;
}

.chart-wrap canvas {
  width: 100%;
  min-width: 620px;
  border: 1px solid var(--border);
  border-radius: 10px;
  background: #ffffff;
}

.chart-legend {
  margin-top: 10px;
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  color: var(--muted);
  font-size: 0.9rem;
}

.legend-item {
  display: inline-flex;
  align-items: center;
  gap: 6px;
}

.legend-dot {
  width: 10px;
  height: 10px;
  border-radius: 2px;
  display: inline-block;
}

.legend-start {
  background: #2b6cb0;
}

.legend-contrib {
  background: #7cb342;
}

.legend-growth {
  background: #b71c1c;
}

@media (max-width: 600px) {
  .hero {
    padding: 20px 16px;
  }

  .kpi {
    font-size: 1.45rem;
  }

  .post-item h2 {
    font-size: 1.3rem;
  }

  .post-excerpt {
    font-size: 0.98rem;
  }

  .post-meta {
    font-size: 0.92rem;
  }
}