:root {
  --ink: #172033;
  --muted: #667085;
  --line: #e1e6ed;
  --soft: #f5f7f9;
  --surface: #ffffff;
  --blue: #3f91ad;
  --green: #43a78f;
  --accent: #3e9a9d;
  --accent-deep: #287783;
  --accent-soft: #eef8f7;
  --amber: #c66a16;
  --red: #c93d45;
  --shadow: 0 8px 24px rgba(23, 32, 51, 0.06);
}

body {
  background: var(--soft);
  color: var(--ink);
}

.topbar {
  min-height: 58px;
  padding: 10px max(18px, calc((100vw - 1120px) / 2));
  border-bottom-color: var(--line);
  background: rgba(255, 255, 255, 0.96);
  box-shadow: none;
}

.brand {
  gap: 9px;
  font-size: 15px;
  font-weight: 760;
}

.brand-mark {
  width: 32px;
  height: 32px;
  border-radius: 7px;
  border: 1px solid rgba(255, 255, 255, 0.58);
  background: linear-gradient(145deg, rgba(72, 187, 170, 0.92), rgba(74, 144, 226, 0.88));
  box-shadow:
    0 5px 14px rgba(42, 125, 138, 0.2),
    inset 0 1px 0 rgba(255, 255, 255, 0.58);
  font-size: 12px;
}

.nav {
  gap: 6px;
  font-size: 13px;
}

.nav a {
  border-radius: 6px;
  padding: 7px 10px;
}

.nav a:hover {
  background: var(--accent-soft);
  color: var(--accent-deep);
}

.hero {
  display: block;
  padding: 30px 20px 26px;
  border-bottom-color: var(--line);
  background: #fff;
}

.hero-copy {
  width: min(1120px, 100%);
  margin: 0 auto;
}

.eyebrow {
  margin-bottom: 7px;
  color: var(--accent-deep);
  font-size: 11px;
  letter-spacing: 0.07em;
}

h1 {
  max-width: 760px;
  font-size: clamp(32px, 4.2vw, 52px);
  line-height: 1.08;
  letter-spacing: -0.025em;
}

h2 {
  font-size: clamp(22px, 2.5vw, 30px);
  line-height: 1.15;
}

h3 {
  font-size: 17px;
}

.hero p {
  max-width: 700px;
  margin: 12px 0 0;
  color: var(--muted);
  font-size: 16px;
  line-height: 1.6;
}

.workspace {
  display: block;
  padding: 24px 20px 34px;
  border-bottom-color: var(--line);
  background: var(--soft);
}

.input-column {
  max-width: 1120px;
}

.panel {
  padding: 20px;
  border-color: var(--line);
  border-radius: 8px;
  box-shadow: var(--shadow);
}

.panel-head {
  align-items: center;
  margin-bottom: 18px;
  padding-bottom: 16px;
  border-bottom: 1px solid var(--line);
}

.panel h2 {
  font-size: 22px;
}

.button {
  min-height: 40px;
  border-color: #cfd6df;
  border-radius: 7px;
  background: #fff;
  font-size: 14px;
  font-weight: 700;
}

.button:hover {
  border-color: #aab5c2;
  background: #f8fafc;
}

input,
select {
  min-height: 42px;
  border-color: #d5dce5;
  border-radius: 7px;
  background: #fff;
  box-shadow: none;
}

input:hover,
select:hover {
  border-color: #aeb8c5;
}

input:focus,
select:focus {
  border-color: var(--accent);
  outline: 3px solid rgba(62, 154, 157, 0.12);
}

label {
  gap: 6px;
  color: #445064;
  font-size: 13px;
  font-weight: 680;
}

.bundle-list {
  gap: 24px;
}

.comparison-card {
  gap: 15px;
  padding: 0;
  border: 0;
  border-radius: 0;
  background: transparent;
}

.comparison-card + .comparison-card {
  padding-top: 24px;
  border-top: 1px solid var(--line);
}

.comparison-toolbar {
  grid-template-columns: minmax(220px, 1fr) minmax(220px, 320px) 40px;
  gap: 10px;
  max-width: none;
}

.comparison-toolbar .remove-row,
.bundle-item-row .remove-row {
  width: 40px;
  min-height: 42px;
  border-color: #d6dce4;
  border-radius: 7px;
  background: #fff;
  color: #8a94a3;
}

.comparison-toolbar .remove-row:hover,
.bundle-item-row .remove-row:hover {
  border-color: rgba(201, 61, 69, 0.42);
  background: #fff6f6;
  color: var(--red);
}

.type-note {
  padding: 0 2px;
  color: var(--muted);
  font-size: 13px;
}

.compare-pair {
  gap: 14px;
}

.compare-box {
  gap: 14px;
  padding: 17px;
  border-radius: 8px;
}

.compare-box h3 {
  display: flex;
  align-items: center;
  gap: 8px;
  font-size: 16px;
}

.compare-box h3::before {
  content: "";
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background: #9aa4b2;
}

.direct-box {
  border-color: #dfe4ea;
  background: #fafbfc;
}

.bundle-box {
  border-color: #c7e3df;
  background: linear-gradient(145deg, rgba(238, 248, 247, 0.96), rgba(239, 246, 251, 0.96));
}

.bundle-box h3::before {
  background: linear-gradient(145deg, #48bbaa, #4a90e2);
  box-shadow: 0 2px 6px rgba(42, 125, 138, 0.24);
}

.box-grid {
  gap: 10px;
}

.bundle-item-row {
  border-color: #dbe2ec;
  border-radius: 7px;
  background: rgba(255, 255, 255, 0.82);
}

.group-result {
  grid-template-columns: minmax(80px, 0.35fr) minmax(100px, 0.4fr) minmax(260px, 1.3fr);
  gap: 12px;
  padding: 15px 16px;
  border: 1px solid #c5e1de;
  border-left: 4px solid var(--accent);
  border-radius: 8px;
  background: linear-gradient(135deg, rgba(238, 248, 247, 0.98), rgba(239, 246, 251, 0.98));
}

.group-result span {
  color: #4c7378;
  font-size: 12px;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

.group-result strong {
  color: #c4515a;
  font-size: 30px;
  letter-spacing: -0.025em;
}

.group-result em {
  color: #526177;
  font-size: 14px;
  line-height: 1.5;
}

.group-result.has-warning {
  border-color: rgba(201, 61, 69, 0.32);
  border-left-color: var(--red);
  background: #fff7f7;
}

.content-section {
  padding: 42px max(20px, calc((100vw - 1120px) / 2));
  border-bottom-color: var(--line);
  background: #fff;
}

.content-section:nth-of-type(even) {
  background: #fbfcfd;
}

.info-grid,
.faq-list {
  gap: 0;
  margin-top: 22px;
  border-top: 1px solid var(--line);
}

.content-section article {
  padding: 18px 20px 6px 0;
  border: 0;
  border-radius: 0;
  background: transparent;
  box-shadow: none;
}

.content-section article + article {
  padding-left: 20px;
  border-left: 1px solid var(--line);
}

.content-section article p {
  margin-bottom: 0;
  font-size: 14px;
}

.disclaimer {
  max-width: 1120px;
  margin: 24px auto;
  border-color: #e4d4ae;
  border-radius: 7px;
  padding: 13px 16px;
  background: #fffaf0;
  font-size: 13px;
}

.footer {
  max-width: 1120px;
  margin: 0 auto;
  padding: 22px 20px 28px;
  font-size: 13px;
}

.floating-calculator {
  right: 18px;
  bottom: 18px;
}

.calculator-toggle {
  min-height: 42px;
  border: 1px solid rgba(255, 255, 255, 0.56);
  border-radius: 7px;
  padding: 7px 10px;
  background: linear-gradient(145deg, rgba(72, 187, 170, 0.86), rgba(74, 144, 226, 0.82));
  color: #fff;
  box-shadow:
    0 9px 22px rgba(42, 125, 138, 0.24),
    inset 0 1px 0 rgba(255, 255, 255, 0.58);
  backdrop-filter: blur(10px);
  transition: transform 140ms ease, box-shadow 140ms ease;
}

.calculator-toggle span {
  width: 30px;
  height: 24px;
  background: rgba(255, 255, 255, 0.18);
  color: rgba(255, 255, 255, 0.9);
}

.calculator-toggle strong {
  font-size: 13px;
}

.calculator-toggle:hover {
  transform: translateY(-1px);
  box-shadow:
    0 11px 25px rgba(42, 125, 138, 0.28),
    inset 0 1px 0 rgba(255, 255, 255, 0.62);
}

.calculator-toggle:active {
  transform: translateY(1px);
}

@media (max-width: 760px) {
  .topbar {
    align-items: center;
    padding: 9px 14px;
  }

  .brand {
    font-size: 14px;
  }

  .nav {
    width: 100%;
    gap: 2px;
  }

  .nav a {
    padding: 5px 8px;
  }

  .hero {
    padding: 24px 16px 22px;
  }

  h1 {
    font-size: clamp(31px, 10vw, 40px);
  }

  .hero p {
    font-size: 15px;
  }

  .workspace {
    padding: 14px 12px 26px;
  }

  .panel {
    padding: 14px;
  }

  .panel-head {
    align-items: flex-start;
    margin-bottom: 15px;
    padding-bottom: 13px;
  }

  .panel h2 {
    font-size: 19px;
  }

  .comparison-toolbar {
    grid-template-columns: minmax(0, 1fr) 42px;
  }

  .comparison-toolbar label:first-child {
    grid-column: 1 / -1;
  }

  .comparison-toolbar label:nth-child(2) {
    grid-column: 1;
  }

  .comparison-toolbar .remove-row {
    grid-column: 2;
  }

  .compare-pair {
    grid-template-columns: 1fr;
  }

  .compare-box {
    padding: 14px;
  }

  .box-grid,
  .box-grid.compact {
    grid-template-columns: 1fr;
  }

  .group-result {
    grid-template-columns: 74px 1fr;
    padding: 13px 14px;
  }

  .group-result em,
  .group-result .result-warning,
  .group-result .tier-breakdown {
    grid-column: 1 / -1;
  }

  .content-section {
    padding: 32px 18px;
  }

  .info-grid,
  .faq-list {
    grid-template-columns: 1fr;
  }

  .content-section article,
  .content-section article + article {
    padding: 15px 0;
    border-left: 0;
    border-bottom: 1px solid var(--line);
  }

  .content-section article:last-child {
    border-bottom: 0;
  }

  .disclaimer {
    margin: 18px 12px;
  }

  .floating-calculator {
    right: 12px;
    bottom: 12px;
  }

  .calculator-toggle {
    grid-template-columns: auto;
    padding: 7px;
  }

  .calculator-toggle strong {
    display: none;
  }
}