:root {
  --blue-950: #0a3354;
  --blue-900: #003c68;
  --blue-800: #005291;
  --blue-700: #07718c;
  --cyan-500: #46b3b4;
  --cyan-100: #e4f7f8;
  --green-600: #15803d;
  --red-600: #b42318;
  --red-100: #fee4e2;
  --amber-100: #fff4d7;
  --amber-700: #a15c00;
  --background: #f2f8fb;
  --surface: #ffffff;
  --surface-muted: #edf7fb;
  --text: #122334;
  --muted: #607385;
  --border: #d9e8f3;
  --shadow: 0 20px 55px rgba(0, 82, 145, 0.12);
  --shadow-soft: 0 12px 30px rgba(0, 82, 145, 0.08);
  --radius-lg: 28px;
  --radius-md: 20px;
  --radius-sm: 14px;
  --transition: 180ms ease;
}

* { box-sizing: border-box; }
html { scroll-behavior: smooth; }
body {
  margin: 0;
  min-height: 100vh;
  color: var(--text);
  background:
    radial-gradient(circle at 92% 0%, rgba(70, 179, 180, 0.22), transparent 32rem),
    radial-gradient(circle at 0% 18%, rgba(0, 82, 145, 0.12), transparent 28rem),
    linear-gradient(135deg, #f8fcff 0%, var(--background) 45%, #e7f5fa 100%);
  font-family: "Segoe UI", "Roboto", Arial, sans-serif;
  font-size: 15px;
}

a { color: inherit; text-decoration: none; }
button, input { font: inherit; }
button { border: 0; }
img { max-width: 100%; display: block; }

.login-page {
  display: grid;
  place-items: center;
  padding: 28px;
}

.login-card {
  width: min(100%, 460px);
  padding: 34px;
  border-radius: 32px;
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(0, 82, 145, 0.12);
  box-shadow: var(--shadow);
}

.login-logo { width: 176px; margin-bottom: 22px; }
.eyebrow {
  margin: 0 0 10px;
  color: var(--cyan-500);
  font-size: 0.78rem;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}
.login-card h1,
.hero-panel h1 {
  margin: 0;
  color: var(--blue-800);
  font-size: clamp(2.3rem, 6vw, 4.8rem);
  line-height: 0.92;
  letter-spacing: -0.055em;
}
.login-subtitle,
.hero-panel p,
.panel-header span,
.kpi-card small,
.metric-strip span {
  color: var(--muted);
}
.login-subtitle { margin: 12px 0 28px; line-height: 1.55; }

.field {
  display: grid;
  gap: 7px;
  min-width: 0;
}
.field span {
  color: var(--blue-950);
  font-size: 0.84rem;
  font-weight: 800;
}
.field input {
  width: 100%;
  min-width: 0;
  height: 44px;
  padding: 10px 12px;
  color: var(--text);
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: 13px;
  outline: none;
  transition: border var(--transition), box-shadow var(--transition);
}
.field input:focus {
  border-color: var(--cyan-500);
  box-shadow: 0 0 0 4px rgba(70, 179, 180, 0.18);
}
.form-grid { display: grid; gap: 16px; }

.button {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  font-weight: 900;
  cursor: pointer;
  transition: transform var(--transition), box-shadow var(--transition), background var(--transition), color var(--transition);
}
.button:hover { transform: translateY(-1px); }
.button-primary {
  color: #fff;
  background: linear-gradient(135deg, var(--blue-800), var(--blue-700) 58%, var(--cyan-500));
  box-shadow: 0 14px 28px rgba(0, 82, 145, 0.22);
}
.button-secondary { color: var(--blue-800); background: var(--cyan-100); }
.button-outline { color: var(--blue-800); background: #fff; border: 1px solid var(--border); }
.button-light { color: var(--blue-800); background: #eef7fb; }
.button-danger { color: var(--red-600); background: var(--red-100); }
.button-small { min-height: 34px; padding: 0 12px; font-size: 0.82rem; }
.error-message { min-height: 22px; margin: 0; color: var(--red-600); font-weight: 800; }

.app-shell { min-height: 100vh; }
.app-header {
  position: sticky;
  top: 0;
  z-index: 30;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 20px;
  min-height: 92px;
  padding: 16px clamp(18px, 4vw, 56px);
  background: rgba(255, 255, 255, 0.9);
  border-bottom: 1px solid rgba(0, 82, 145, 0.1);
  backdrop-filter: blur(18px);
}
.brand img { width: 162px; }
.main-nav { display: flex; align-items: center; gap: 8px; flex-wrap: wrap; }
.nav-link {
  display: inline-flex;
  align-items: center;
  min-height: 42px;
  padding: 0 18px;
  border-radius: 999px;
  color: var(--blue-800);
  font-weight: 900;
  transition: background var(--transition), color var(--transition);
}
.nav-link:hover,
.nav-link.active { background: var(--blue-800); color: #fff; }

.page-main {
  width: min(1500px, calc(100% - 44px));
  margin: 0 auto;
  padding: 30px 0 70px;
}
.hero-panel,
.panel,
.kpi-card,
.metric-strip {
  background: rgba(255, 255, 255, 0.95);
  border: 1px solid rgba(0, 82, 145, 0.11);
  box-shadow: var(--shadow-soft);
}
.hero-panel {
  display: flex;
  justify-content: space-between;
  gap: 28px;
  align-items: flex-end;
  padding: clamp(22px, 4vw, 34px);
  border-radius: var(--radius-lg);
  overflow: hidden;
  position: relative;
}
.hero-panel::after {
  content: "";
  position: absolute;
  inset: auto -80px -120px auto;
  width: 300px;
  height: 300px;
  background: linear-gradient(135deg, var(--cyan-500), var(--blue-800));
  opacity: 0.11;
  transform: rotate(45deg);
  border-radius: 34px;
}
.hero-panel p { max-width: 830px; margin: 14px 0 0; line-height: 1.55; font-size: 1.02rem; }
.compact-hero { margin-bottom: 20px; }
.hero-badge {
  position: relative;
  z-index: 1;
  display: grid;
  gap: 6px;
  min-width: 210px;
  padding: 18px;
  border-radius: 22px;
  color: var(--blue-800);
  background: #eef8fc;
  border: 1px solid var(--border);
}
.hero-badge span { color: var(--muted); font-size: 0.8rem; font-weight: 800; text-transform: uppercase; }
.hero-badge strong { font-size: 1.45rem; letter-spacing: -0.04em; }

.kpi-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(215px, 1fr));
  gap: 16px;
  margin: 20px 0;
}
.kpi-card {
  position: relative;
  display: grid;
  gap: 8px;
  min-width: 0;
  min-height: 132px;
  padding: 22px;
  border-radius: var(--radius-md);
  overflow: hidden;
}
.kpi-card::after {
  content: "";
  position: absolute;
  right: -32px;
  top: -32px;
  width: 92px;
  height: 92px;
  background: linear-gradient(135deg, var(--cyan-500), var(--blue-800));
  opacity: 0.13;
  transform: rotate(45deg);
}
.kpi-label {
  color: #607385;
  font-size: 0.77rem;
  font-weight: 900;
  letter-spacing: 0.09em;
  text-transform: uppercase;
}
.kpi-value {
  color: var(--blue-800);
  font-size: clamp(1.28rem, 1.6vw, 1.85rem);
  line-height: 1.08;
  letter-spacing: -0.045em;
  overflow-wrap: anywhere;
  word-break: normal;
}
.kpi-card small { font-size: 0.82rem; line-height: 1.35; }
.kpi-result.positive .kpi-value { color: var(--green-600); }
.kpi-result.negative .kpi-value { color: var(--red-600); }

.metric-strip {
  display: grid;
  grid-template-columns: repeat(6, minmax(130px, 1fr));
  gap: 0;
  border-radius: var(--radius-md);
  overflow: hidden;
  margin-bottom: 20px;
}
.metric-strip div {
  display: grid;
  gap: 6px;
  padding: 18px;
  border-right: 1px solid var(--border);
}
.metric-strip div:last-child { border-right: 0; }
.metric-strip strong { color: var(--blue-800); font-size: 1.15rem; }
.metric-strip span { font-size: 0.78rem; font-weight: 800; text-transform: uppercase; }

.insights-grid,
.dashboard-grid,
.admin-layout {
  display: grid;
  gap: 18px;
}
.insights-grid { grid-template-columns: 1.05fr 0.95fr; margin-bottom: 18px; }
.dashboard-grid { grid-template-columns: repeat(2, minmax(0, 1fr)); }
.admin-layout { grid-template-columns: minmax(360px, 0.85fr) minmax(0, 1.45fr); align-items: start; }
.panel {
  min-width: 0;
  border-radius: var(--radius-lg);
  padding: 22px;
}
.panel-accent { border-left: 6px solid var(--blue-800); }
.panel-header {
  display: flex;
  justify-content: space-between;
  align-items: flex-start;
  gap: 16px;
  margin-bottom: 16px;
}
.panel h2,
.panel-header h2 {
  margin: 0;
  color: var(--blue-800);
  font-size: clamp(1.05rem, 1.3vw, 1.32rem);
  letter-spacing: -0.035em;
}
.panel-header span { font-size: 0.86rem; font-weight: 800; }
.chart-panel canvas {
  display: block;
  width: 100%;
  height: 335px;
  border-radius: 20px;
  border: 1px solid var(--border);
  background: #fff;
}
.wide-panel { grid-column: 1 / -1; }
.wide-panel canvas { height: 360px; }

.insight-list { display: grid; gap: 12px; }
.insight-item {
  display: grid;
  grid-template-columns: 42px 1fr;
  gap: 12px;
  align-items: start;
  padding: 12px;
  border-radius: 16px;
  background: #f7fbfe;
  border: 1px solid var(--border);
}
.insight-icon {
  display: grid;
  place-items: center;
  width: 42px;
  height: 42px;
  border-radius: 14px;
  color: #fff;
  background: linear-gradient(135deg, var(--blue-800), var(--cyan-500));
  font-weight: 900;
}
.insight-item strong { display: block; color: var(--blue-950); margin-bottom: 3px; }
.insight-item p { margin: 0; color: var(--muted); line-height: 1.45; }

.day-cards { display: grid; gap: 12px; }
.day-card {
  padding: 14px;
  border-radius: 18px;
  border: 1px solid var(--border);
  background: #f9fcff;
}
.day-card header { display: flex; align-items: center; justify-content: space-between; gap: 12px; margin-bottom: 10px; }
.day-card h3 { margin: 0; color: var(--blue-800); font-size: 1.08rem; }
.status-badge {
  display: inline-flex;
  align-items: center;
  min-height: 28px;
  padding: 0 10px;
  border-radius: 999px;
  font-size: 0.76rem;
  font-weight: 900;
}
.status-positive { color: #0f6f3a; background: #dcfce7; }
.status-negative { color: var(--red-600); background: var(--red-100); }
.day-card dl {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 8px 14px;
  margin: 0;
}
.day-card dt { color: var(--muted); font-size: 0.75rem; font-weight: 800; }
.day-card dd { margin: 2px 0 0; font-weight: 900; color: var(--blue-950); }

.table-panel { margin-top: 18px; }
.table-wrap { width: 100%; overflow-x: auto; }
table { width: 100%; border-collapse: separate; border-spacing: 0; min-width: 1220px; }
th, td {
  padding: 12px 14px;
  border-bottom: 1px solid var(--border);
  text-align: left;
  white-space: nowrap;
  font-size: 0.88rem;
}
th {
  position: sticky;
  top: 0;
  z-index: 2;
  color: var(--blue-800);
  background: #eff8fc;
  font-size: 0.73rem;
  font-weight: 900;
  letter-spacing: 0.06em;
  text-transform: uppercase;
}
tbody tr:hover { background: #f8fcff; }
.value-positive { color: var(--green-600); font-weight: 900; }
.value-negative { color: var(--red-600); font-weight: 900; }
.value-muted { color: var(--muted); }

.admin-form {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 14px;
}
.span-2 { grid-column: span 2; }
.calc-preview {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 10px;
  padding: 14px;
  background: #f5fbfd;
  border: 1px solid var(--border);
  border-radius: 18px;
}
.calc-preview div { display: grid; gap: 4px; }
.calc-preview span { color: var(--muted); font-size: 0.74rem; font-weight: 800; text-transform: uppercase; }
.calc-preview strong { color: var(--blue-800); font-size: 1rem; }
.form-actions { display: flex; flex-wrap: wrap; gap: 10px; }
.action-buttons { display: flex; gap: 8px; }
.toast {
  position: fixed;
  right: 24px;
  bottom: 24px;
  z-index: 50;
  max-width: min(380px, calc(100vw - 36px));
  padding: 14px 18px;
  color: #fff;
  background: var(--blue-800);
  border-radius: 16px;
  box-shadow: var(--shadow);
  opacity: 0;
  transform: translateY(16px);
  pointer-events: none;
  transition: opacity var(--transition), transform var(--transition);
}
.toast.show { opacity: 1; transform: translateY(0); }
.toast.error { background: var(--red-600); }

@media (max-width: 1180px) {
  .insights-grid,
  .dashboard-grid,
  .admin-layout { grid-template-columns: 1fr; }
  .metric-strip { grid-template-columns: repeat(3, minmax(0, 1fr)); }
  .wide-panel { grid-column: auto; }
}

@media (max-width: 760px) {
  .app-header,
  .hero-panel,
  .panel-header { flex-direction: column; align-items: flex-start; }
  .app-header { position: static; min-height: auto; }
  .brand img { width: 140px; }
  .main-nav { width: 100%; }
  .nav-link, .button-outline { flex: 1 1 auto; }
  .page-main { width: min(100% - 24px, 1500px); padding-top: 18px; }
  .metric-strip { grid-template-columns: 1fr 1fr; }
  .metric-strip div:nth-child(even) { border-right: 0; }
  .admin-form,
  .calc-preview { grid-template-columns: 1fr; }
  .span-2 { grid-column: auto; }
  .chart-panel canvas,
  .wide-panel canvas { height: 300px; }
}

@media (max-width: 520px) {
  .login-card { padding: 24px; }
  .metric-strip { grid-template-columns: 1fr; }
  .metric-strip div { border-right: 0; }
  .kpi-card { min-height: 118px; }
}