@import url("https://fonts.googleapis.com/css2?family=Playfair+Display:wght@500;600&family=IBM+Plex+Sans:wght@300;400;500;600&family=IBM+Plex+Mono:wght@400;500&display=swap");

*,
*::before,
*::after {
  box-sizing: border-box;
}

:root {
  --bg: #f7f6f3;
  --bg-soft: #efebe3;
  --surface: #ffffff;
  --surface-soft: rgba(255, 255, 255, 0.86);
  --ink: #1a1a1a;
  --ink-mid: #555555;
  --ink-light: #8e8a82;
  --border: #e2e0db;
  --good: #1d6b3e;
  --good-bg: #edf7f1;
  --warn: #8a5e00;
  --warn-bg: #fdf6e3;
  --bad: #8b1c1c;
  --bad-bg: #fdf0f0;
  --accent: #2d5a8e;
  --accent-soft: rgba(45, 90, 142, 0.08);
  --shadow: 0 22px 44px rgba(26, 26, 26, 0.08);
  --shadow-soft: 0 10px 24px rgba(26, 26, 26, 0.05);
  --radius-lg: 24px;
  --radius-md: 18px;
  --radius-sm: 12px;
}

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  color: var(--ink);
  font-family: "IBM Plex Sans", sans-serif;
  font-weight: 300;
  background:
    radial-gradient(circle at top left, rgba(45, 90, 142, 0.12), transparent 24%),
    linear-gradient(180deg, #fbfaf7 0%, #f1eee7 100%);
}

body.home-page {
  padding: 28px 20px 60px;
}

body.tool-page {
  padding: 28px 20px 72px;
}

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

button,
input {
  font: inherit;
}

.shell,
.container {
  width: min(100%, 1120px);
  margin: 0 auto;
}

.container {
  max-width: 980px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 18px;
  flex-wrap: wrap;
  margin-bottom: 30px;
  padding: 12px 14px;
  border: 1px solid rgba(226, 224, 219, 0.9);
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.8);
  backdrop-filter: blur(14px);
  box-shadow: var(--shadow-soft);
}

.brand {
  display: inline-flex;
  align-items: center;
  gap: 10px;
  font-family: "Playfair Display", serif;
  font-size: 1.15rem;
  font-weight: 600;
}

.brand-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 34px;
  height: 34px;
  border-radius: 50%;
  background: var(--ink);
  color: #ffffff;
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.85rem;
}

.tabs-nav {
  display: flex;
  align-items: center;
  gap: 8px;
  flex-wrap: wrap;
}

.tab-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 9px 14px;
  border: 1px solid transparent;
  border-radius: 999px;
  background: transparent;
  color: var(--ink-mid);
  cursor: pointer;
  font-size: 0.95rem;
  font-weight: 500;
  transition: transform 0.15s ease, border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

.tab-link:hover {
  border-color: var(--border);
  color: var(--ink);
  transform: translateY(-1px);
}

.tab-link.active,
.tab-link[aria-current="page"] {
  border-color: var(--ink);
  background: var(--ink);
  color: #ffffff;
}

.burger-btn {
  display: none;
  flex-direction: column;
  justify-content: center;
  align-items: center;
  gap: 5px;
  width: 38px;
  height: 38px;
  padding: 0;
  border: 1px solid var(--border);
  border-radius: 12px;
  background: transparent;
  cursor: pointer;
  flex-shrink: 0;
  transition: border-color 0.18s ease, background-color 0.18s ease;
}

.burger-btn:hover {
  border-color: var(--ink);
}

.burger-bar {
  display: block;
  width: 18px;
  height: 2px;
  border-radius: 2px;
  background: var(--ink);
  transition: transform 0.22s ease, opacity 0.18s ease, background-color 0.18s ease;
}

.page-header {
  margin-bottom: 34px;
  animation: rise 0.5s ease both;
}

.eyebrow {
  margin: 0 0 14px;
  color: var(--ink-light);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.18em;
  text-transform: uppercase;
}

.page-title {
  margin: 0;
  font-family: "Playfair Display", serif;
  font-size: clamp(2.1rem, 5vw, 3.2rem);
  font-weight: 500;
  line-height: 1.05;
}

.lead {
  max-width: 720px;
  margin: 16px 0 0;
  color: var(--ink-mid);
  font-size: 1rem;
  line-height: 1.7;
}

.header-line {
  width: 54px;
  height: 3px;
  margin-top: 22px;
  border-radius: 999px;
  background: linear-gradient(90deg, var(--ink), var(--accent));
}

section {
  overflow: hidden;
  margin-bottom: 16px;
  border: 1px solid rgba(226, 224, 219, 0.92);
  border-radius: var(--radius-md);
  background: var(--surface-soft);
  box-shadow: var(--shadow-soft);
  animation: rise 0.45s ease both;
}

.sec-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 14px;
  padding: 18px 28px 14px;
  border-bottom: 1px solid var(--border);
}

.sec-head-l {
  display: flex;
  align-items: center;
  gap: 10px;
}

.sec-num {
  color: var(--ink-light);
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.68rem;
  letter-spacing: 0.05em;
}

.sec-title {
  color: var(--ink-mid);
  font-size: 0.72rem;
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
}

.sec-body {
  padding: 28px;
}

.chart-title {
  margin-bottom: 12px;
  color: var(--ink-light);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
}

canvas {
  display: block;
  width: 100% !important;
}

.compare-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 16px;
}

.compare-col {
  overflow: hidden;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #ffffff;
}

.compare-col-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 8px;
  padding: 10px 16px;
  border-bottom: 1px solid var(--border);
  background: var(--bg);
  color: var(--ink-mid);
  font-size: 0.68rem;
  font-weight: 600;
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.compare-col-body {
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 14px 16px;
}

.crow,
.compare-row {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
}

.crow-label,
.compare-row-label {
  color: var(--ink-light);
  font-size: 0.72rem;
}

.crow-val,
.compare-row-val {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.83rem;
  font-weight: 500;
}

.badge {
  margin-left: 6px;
  padding: 2px 6px;
  border-radius: 999px;
  font-size: 0.62rem;
  font-weight: 600;
}

.badge.up {
  background: var(--good-bg);
  color: var(--good);
}

.badge.dn {
  background: var(--bad-bg);
  color: var(--bad);
}

.badge.flat {
  background: var(--bg);
  color: var(--ink-light);
}

.hist-empty {
  margin: 0;
  color: var(--ink-light);
  font-size: 0.88rem;
  font-style: italic;
}

.hist-list {
  display: flex;
  flex-direction: column;
  gap: 8px;
}

.hist-item {
  display: flex;
  align-items: center;
  gap: 12px;
  flex-wrap: wrap;
  padding: 12px 16px;
  border: 1px solid var(--border);
  border-radius: var(--radius-sm);
  background: #ffffff;
  transition: border-color 0.15s ease, transform 0.15s ease;
}

.hist-item[data-clickable="true"] {
  cursor: pointer;
}

.hist-item[data-clickable="true"]:hover {
  border-color: var(--ink);
  transform: translateY(-1px);
}

.hist-kpis {
  display: flex;
  flex: 1;
  gap: 16px;
  flex-wrap: wrap;
}

.hist-kpi-label {
  color: var(--ink-light);
  font-size: 0.58rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hist-kpi-val {
  font-family: "IBM Plex Mono", monospace;
  font-size: 0.82rem;
  font-weight: 500;
}

.hist-del {
  padding: 0 4px;
  border: 0;
  background: transparent;
  color: var(--ink-light);
  cursor: pointer;
  font-size: 1rem;
}

.hist-del:hover {
  color: var(--bad);
}

.actions {
  display: flex;
  gap: 10px;
  flex-wrap: wrap;
  padding: 18px 28px;
  border-top: 1px solid var(--border);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 10px 18px;
  border: 1px solid var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-mid);
  cursor: pointer;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  transition: transform 0.15s ease, border-color 0.15s ease, background-color 0.15s ease, color 0.15s ease;
}

.btn:hover {
  border-color: var(--ink);
  color: var(--ink);
  transform: translateY(-1px);
}

.btn-sm {
  padding: 6px 10px;
  font-size: 0.64rem;
}

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

.btn-primary:hover {
  border-color: var(--ink);
  background: #333333;
  color: #ffffff;
}

.btn-save {
  border-color: rgba(29, 107, 62, 0.28);
  background: var(--good-bg);
  color: var(--good);
}

.btn-save:hover {
  border-color: var(--good);
  background: var(--good);
  color: #ffffff;
}

.btn-add {
  padding: 9px 14px;
  border: 1px dashed var(--border);
  border-radius: 999px;
  background: transparent;
  color: var(--ink-light);
  cursor: pointer;
  font-size: 0.8rem;
  transition: transform 0.15s ease, border-color 0.15s ease, color 0.15s ease;
}

.btn-add:hover {
  border-color: var(--ink);
  color: var(--ink);
  transform: translateY(-1px);
}

.muted-note {
  color: var(--ink-light);
  font-size: 0.88rem;
}

.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

@keyframes rise {
  from {
    opacity: 0;
    transform: translateY(12px);
  }

  to {
    opacity: 1;
    transform: translateY(0);
  }
}

@media (max-width: 760px) {
  .topbar {
    align-items: stretch;
    border-radius: 28px;
  }

  .brand {
    justify-content: center;
  }

  .tabs-nav {
    justify-content: center;
  }

  .sec-head,
  .sec-body,
  .actions {
    padding-left: 18px;
    padding-right: 18px;
  }

  .portal-tab {
    min-height: auto;
    padding: 14px;
  }

  .actions {
    justify-content: stretch;
  }

  .actions .btn {
    flex: 1 1 100%;
    min-width: 0;
  }
}

@media (max-width: 680px) {
  .topbar {
    position: relative;
    z-index: 50;
    align-items: center;
    flex-wrap: nowrap;
    border-radius: 999px;
  }

  .brand {
    justify-content: flex-start;
  }

  .burger-btn {
    display: flex;
  }

  .topbar.is-open .burger-btn {
    border-color: var(--ink);
    background: var(--ink);
  }

  .topbar.is-open .burger-bar {
    background: #ffffff;
  }

  .topbar.is-open .burger-bar:nth-child(1) {
    transform: translateY(7px) rotate(45deg);
  }

  .topbar.is-open .burger-bar:nth-child(2) {
    opacity: 0;
  }

  .topbar.is-open .burger-bar:nth-child(3) {
    transform: translateY(-7px) rotate(-45deg);
  }

  .tabs-nav {
    position: absolute;
    top: calc(100% + 10px);
    left: 0;
    right: 0;
    z-index: 200;
    flex-direction: column;
    align-items: stretch;
    gap: 4px;
    padding: 8px;
    border: 1px solid var(--border);
    border-radius: 20px;
    background: rgba(255, 255, 255, 0.97);
    backdrop-filter: blur(16px);
    box-shadow: var(--shadow);
    opacity: 0;
    visibility: hidden;
    pointer-events: none;
    transform: translateY(-6px);
    transition: opacity 0.2s ease, transform 0.2s ease, visibility 0s linear 0.2s;
  }

  .topbar.is-open .tabs-nav {
    opacity: 1;
    visibility: visible;
    pointer-events: auto;
    transform: translateY(0);
    transition: opacity 0.2s ease, transform 0.2s ease;
  }

  .tab-link {
    width: 100%;
    border-radius: 12px;
    padding: 12px 16px;
    justify-content: flex-start;
  }
}

@media (max-width: 680px) {
  .hero-card,
  .portal-card {
    padding: 18px;
  }

  .portal-header {
    align-items: flex-start;
    flex-direction: column;
  }

  .sec-head {
    flex-direction: column;
    align-items: flex-start;
  }

  .benchmark-tool .comp-row,
  .benchmark-tool .crit-row,
  .benchmark-tool .hbar-row,
  .crow,
  .compare-row,
  .hist-item {
    flex-wrap: wrap;
    align-items: flex-start;
  }

  .benchmark-tool .comp-tag input,
  .benchmark-tool .crit-name,
  .benchmark-tool .hbar-name,
  .roi-tool .hist-canal,
  .roi-tool .hist-date {
    min-width: 0;
  }
}

@media (max-width: 560px) {
  body.home-page,
  body.tool-page {
    padding-left: 14px;
    padding-right: 14px;
  }

  .topbar,
  .portal-header,
  .hero-card,
  .portal-card,
  .tool-stage-header,
  section,
  .sec-head,
  .sec-body,
  .actions {
    padding-left: 14px;
    padding-right: 14px;
  }

  .portal-tabs,
  .hero-meta,
  .compare-grid,
  .benchmark-tool .chart-grid,
  .pricing-tool .global-fields,
  .pricing-tool .plans-grid,
  .pricing-tool .results-grid,
  .roi-tool .fields {
    grid-template-columns: 1fr;
  }

  .btn,
  .portal-tab {
    width: 100%;
  }

  .portal-tab {
    min-height: auto;
    padding: 14px;
  }
}

@media print {
  body {
    padding: 0;
    background: #ffffff;
  }

  .topbar,
  .portal-tabs,
  .portal-controls {
    display: none !important;
  }

  section {
    box-shadow: none;
    background: #ffffff;
  }
}