:root {
  /* Light theme (default) */
  --bg: #f6f6f8;
  --bg-glow-1: rgba(232, 117, 50, .10);

  --border-color: rgba(16, 20, 24, .12);

  --surface: rgba(255, 255, 255, .86);
  --surface-2: rgba(255, 255, 255, .72);
  --border: rgba(16, 20, 24, .12);
  --text: rgba(16, 20, 24, .92);
  --muted: rgba(16, 20, 24, .62);

  --accent: #e87532;
  --shadow: 0 14px 40px rgba(0, 0, 0, .12);
  --shadow-soft: 0 10px 30px rgba(0, 0, 0, .10);

  --pill-fg: rgba(255, 255, 255, .85);
  --pill-bg: rgba(255, 255, 255, .05);
  --pill-border: var(--border-color);

  --input-bg: rgba(255, 255, 255, .85);
  --input-border: rgba(16, 20, 24, .14);

  --danger: #ff5a5f;

  --hero-bg: radial-gradient(1200px 500px at 20% -10%, rgba(232, 117, 50, .16), transparent 55%),
    linear-gradient(180deg, rgba(255, 255, 255, .65), rgba(255, 255, 255, .20));
  --hero-border: rgba(232, 117, 50, .26);
}

[data-theme="dark"] {
  --bg: #050505;
  --bg-glow-1: rgba(232, 117, 50, .12);

  --surface: rgba(37, 37, 37, .82);
  --surface-2: rgba(37, 37, 37, .65);
  --border: rgba(255, 255, 255, .12);
  --text: rgba(255, 255, 255, .92);
  --muted: rgba(255, 255, 255, .62);

  --shadow: 0 18px 55px rgba(0, 0, 0, .55);
  --shadow-soft: 0 12px 36px rgba(0, 0, 0, .45);

  --pill-bg: rgba(255, 255, 255, .06);
  --pill-border: rgba(255, 255, 255, .12);

  --input-bg: rgba(0, 0, 0, .25);
  --input-border: rgba(255, 255, 255, .14);

  --hero-bg: radial-gradient(1200px 500px at 20% -10%, rgba(232, 117, 50, .16), transparent 55%),
    linear-gradient(180deg, rgba(255, 255, 255, .06), rgba(255, 255, 255, .00));
  --hero-border: rgba(232, 117, 50, .30);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
}

.wrap {
  max-width: 1100px;
  margin: 0 auto;
  padding: 34px 18px 52px;
}

.topbar {
  display: flex;
  align-items: flex-end;
  justify-content: space-between;
  gap: 18px;
  padding: 18px 18px 16px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--hero-bg);
  box-shadow: var(--shadow-soft);
  margin-bottom: 18px;
}

.brand {
  display: flex;
  gap: 14px;
  align-items: flex-start;
}

.logo {
  width: 44px;
  height: 44px;
  border-radius: 14px;
  border: 1px solid rgba(232, 117, 50, .26);
  background: radial-gradient(circle at 32% 30%, rgba(232, 117, 50, .95), rgba(232, 117, 50, .45) 45%, transparent 55%),
    radial-gradient(circle at 62% 65%, rgba(255, 255, 255, .35), transparent 60%);
  box-shadow: 0 12px 26px rgba(232, 117, 50, .18);
  flex: 0 0 auto;
}

.brand h1 {
  margin: 0 0 6px;
  font-size: 24px;
  letter-spacing: .2px;
}

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

.brand p {
  margin: 0;
  color: var(--muted);
  line-height: 1.35;
  max-width: 66ch;
}

.card {
  box-shadow: var(--shadow);
  backdrop-filter: blur(10px);
}

.head {
  display: flex;
  justify-content: space-between;
}

.head h2 {
  margin: 0;
}

.label-row {
  display: flex;
  align-items: center;
  gap: 6px;
  line-height: 1.2;
  flex-wrap: wrap;
}

.hint {
  font-size: 12px;
}

input[type="text"],
input[type="number"],
select {
  width: 100%;
  border: 1px solid var(--input-border);
  background: var(--input-bg);
  color: var(--default-color);
  border-radius: 12px;
  outline: none;
}

input[type="text"]:focus,
input[type="number"]:focus,
select:focus {
  border-color: var(--input-border-focus);
  background: var(--input-bg-focus);
}

.footer {
  margin-top: 22px;
  display: flex;
  gap: 10px;
  align-items: center;
  justify-content: center;
  color: var(--muted);
  font-size: 12px;
  padding: 16px 18px;
  border: 1px solid var(--border);
  border-radius: 16px;
  background: var(--surface-2);
  box-shadow: var(--shadow-soft);
  flex-wrap: wrap;
}

.footlink {
  color: var(--text);
  text-decoration: none;
  border-bottom: 1px dashed rgba(232, 117, 50, .55);
}

.tip {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 18px;
  height: 18px;
  border-radius: 999px;
  cursor: help;
}

.btn-accent {
  border-color: var(--btn-accent-border);
  background: linear-gradient(180deg, var(--btn-accent-bg-1), var(--btn-accent-bg-2));
}

.footlink:hover {
  border-bottom-style: solid;
}

.btn-accent:hover {
  background: linear-gradient(180deg, var(--btn-accent-bg-1-hover), var(--btn-accent-bg-2-hover));
}

.badge {
  border-radius: 999px;
}

.sep {
  height: 1px;
}

.result-hero {
  border: 1px solid var(--hero-border);
}

.kpi {
  border-radius: var(--radius2);
}

.kpi .v {
  font-size: 18px;
  letter-spacing: .2px;
}

.kpi .s {
  margin-top: 6px;
  font-size: 12px;
}

.footer .dot {
  opacity: .65;
}