:root {
  --primary: #5804fa;
  --yellow: #fada01;
  --orange: #ff7a00;
  --text: #172033;
  --muted: #667085;
  --bg: #f7f5ff;
  --white: #ffffff;
  --border: #e6e1ff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: Arial, Helvetica, sans-serif;
  color: var(--text);
  background: var(--bg);
  line-height: 1.6;
}

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

.container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

/* Header */

.site-header {
  background: var(--white);
  border-bottom: 1px solid var(--border);
  position: sticky;
  top: 0;
  z-index: 99;
}

.header-wrap {
  min-height: 72px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 16px;
}

.logo {
  font-weight: 800;
  color: var(--primary);
  font-size: 20px;
  white-space: nowrap;
}

.logo span {
  color: var(--orange);
}

.main-nav {
  display: flex;
  align-items: center;
  gap: 18px;
  font-weight: 700;
  color: var(--text);
}

.main-nav a:hover {
  color: var(--primary);
}

.menu-toggle {
  display: none;
  border: 0;
  background: var(--yellow);
  color: #111827;
  font-size: 24px;
  font-weight: 900;
  width: 46px;
  height: 42px;
  border-radius: 12px;
  cursor: pointer;
  line-height: 1;
}

/* Homepage Hero */

.hero {
  padding: 72px 0;
  background: linear-gradient(135deg, #ffffff 0%, #f3edff 100%);
}

.hero-grid {
  display: grid;
  grid-template-columns: 1.35fr 0.65fr;
  gap: 32px;
  align-items: center;
}

.eyebrow {
  color: var(--orange);
  font-weight: 800;
  margin: 0 0 12px;
}

h1 {
  font-size: clamp(36px, 5vw, 62px);
  line-height: 1.05;
  margin: 0 0 18px;
  color: var(--primary);
}

.hero-text {
  font-size: 18px;
  color: var(--muted);
  max-width: 720px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 14px;
  margin-top: 28px;
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 13px 20px;
  border-radius: 999px;
  font-weight: 800;
}

.btn.primary {
  background: var(--yellow);
  color: #111827;
}

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

.hero-card,
.tool-card {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 24px;
  padding: 24px;
  box-shadow: 0 16px 35px rgba(88, 4, 250, 0.08);
}

.hero-card h2 {
  color: var(--primary);
  margin-top: 0;
}

.hero-card li {
  margin: 8px 0;
  font-weight: 700;
}

/* Tools */

.tools-section {
  padding: 64px 0;
}

.tools-section h2 {
  font-size: 34px;
  color: var(--primary);
  margin: 0 0 8px;
}

.section-intro {
  color: var(--muted);
  margin-bottom: 28px;
}

.tools-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 18px;
}

.tool-card {
  min-height: 168px;
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.tool-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 20px 40px rgba(88, 4, 250, 0.12);
}

.tool-card h3 {
  margin: 0 0 8px;
  color: var(--primary);
}

.tool-card p {
  margin: 0;
  color: var(--muted);
}

.tool-card.muted {
  opacity: 0.72;
}

/* General Pages */

.page-wrap {
  background: var(--bg);
}

.hero-section,
.tool-hero {
  padding: 54px 0;
  background: linear-gradient(135deg, #ffffff 0%, #f3edff 100%);
}

.hero-content,
.tool-hero .container {
  width: min(1120px, calc(100% - 32px));
  margin: 0 auto;
}

.hero-content h1,
.tool-hero h1 {
  margin-bottom: 14px;
}

.hero-content p,
.tool-hero p {
  max-width: 760px;
  color: var(--muted);
  font-size: 18px;
}

.tool-card,
.content-card,
.calc-card,
.result-card,
.note-box,
.content-section table {
  background: var(--white);
  border: 1px solid var(--border);
  border-radius: 24px;
  box-shadow: 0 16px 35px rgba(88, 4, 250, 0.08);
}

.tool-card,
.content-card {
  width: min(1120px, calc(100% - 32px));
  margin: 32px auto;
  padding: 28px;
}

.content-card h2,
.content-section h2,
.calc-card h2,
.result-card h2 {
  color: var(--primary);
  margin-top: 0;
}

.content-card p,
.content-section p {
  color: var(--muted);
}

.seo-list {
  padding-left: 20px;
}

.seo-list li {
  margin: 8px 0;
  color: var(--text);
}

/* Calculator Forms */

.calculator-form,
.calc-form {
  display: grid;
  gap: 18px;
}

.form-grid,
.calc-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 18px;
}

.form-group,
.calc-form label {
  display: grid;
  gap: 8px;
  font-weight: 800;
  color: var(--text);
}

.form-group input,
.form-group select,
.calc-form input,
.calc-form select,
.calc-form textarea {
  width: 100%;
  border: 1px solid var(--border);
  border-radius: 16px;
  padding: 14px 16px;
  font-size: 16px;
  outline: none;
  background: #fff;
}

.form-group input:focus,
.form-group select:focus,
.calc-form input:focus,
.calc-form select:focus,
.calc-form textarea:focus {
  border-color: var(--primary);
  box-shadow: 0 0 0 4px rgba(88, 4, 250, 0.1);
}

.primary-btn,
.full-btn {
  border: 0;
  cursor: pointer;
  margin-top: 8px;
  font-size: 16px;
  font-weight: 900;
  padding: 15px 22px;
  border-radius: 999px;
  background: var(--yellow);
  color: #111827;
}

.primary-btn:hover,
.full-btn:hover,
.btn.primary:hover {
  filter: brightness(0.96);
}

.result-box,
.result-card {
  margin-top: 24px;
  padding: 24px;
  background: #fffaf0;
  border: 1px solid #ffd98a;
  border-radius: 24px;
}

.result-box h3,
.result-card h3 {
  margin-top: 0;
  color: var(--primary);
}

.big-result,
.bmi-number {
  font-size: 52px;
  line-height: 1;
  font-weight: 900;
  color: var(--primary);
  margin: 14px 0;
}

.bmi-category {
  display: inline-flex;
  background: var(--yellow);
  color: #111827;
  font-weight: 900;
  padding: 8px 14px;
  border-radius: 999px;
  margin-bottom: 14px;
}

.mini-links {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin-top: 18px;
}

.mini-links a {
  display: inline-flex;
  padding: 9px 14px;
  border-radius: 999px;
  background: var(--primary);
  color: var(--white);
  font-weight: 800;
  font-size: 14px;
}

/* Tables */

.table-wrap {
  width: 100%;
  overflow-x: auto;
  margin: 18px 0;
}

table {
  width: 100%;
  border-collapse: collapse;
  overflow: hidden;
  border-radius: 16px;
  background: var(--white);
}

th,
td {
  padding: 14px 16px;
  border-bottom: 1px solid var(--border);
  text-align: left;
}

th {
  background: var(--primary);
  color: var(--white);
}

td small {
  color: var(--muted);
}

/* Food Search */

#foodSearch,
#categoryFilter {
  width: 100%;
}

/* Footer */

.site-footer {
  background: #12052f;
  color: #ffffff;
  padding: 34px 0;
  text-align: center;
}

.site-footer p {
  margin: 8px 0;
  font-size: 14px;
}

.footer-links {
  display: flex;
  flex-wrap: wrap;
  gap: 12px;
  justify-content: center;
  margin-bottom: 16px;
}

.footer-links a {
  color: #ffffff;
  font-weight: 800;
  padding: 8px 12px;
  border-radius: 999px;
  background: rgba(255, 255, 255, 0.08);
}

.footer-links a:hover,
.footer-credit a:hover {
  color: var(--yellow);
}

.footer-credit a {
  color: var(--yellow);
  font-weight: 900;
}

/* Mobile */

@media (max-width: 900px) {
  .tools-grid {
    grid-template-columns: repeat(2, 1fr);
  }

  .hero-grid {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 800px) {
  .header-wrap {
    min-height: 68px;
    position: relative;
  }

  .logo {
    font-size: 18px;
  }

  .menu-toggle {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }

  .main-nav {
    display: none;
    position: absolute;
    top: 68px;
    left: 16px;
    right: 16px;
    flex-direction: column;
    align-items: stretch;
    gap: 0;
    background: var(--white);
    border: 1px solid var(--border);
    border-radius: 20px;
    padding: 10px;
    box-shadow: 0 20px 45px rgba(88, 4, 250, 0.16);
  }

  .main-nav.is-open {
    display: flex;
  }

  .main-nav a {
    padding: 13px 14px;
    border-radius: 14px;
  }

  .main-nav a:hover {
    background: #f3edff;
  }

  .hero {
    padding: 48px 0;
  }

  .hero-section,
  .tool-hero {
    padding: 44px 0;
  }

  .form-grid,
  .calc-grid,
  .tools-grid {
    grid-template-columns: 1fr;
  }

  .tool-card,
  .content-card {
    margin: 22px auto;
    padding: 22px;
  }

  h1 {
    font-size: 38px;
  }

  .big-result,
  .bmi-number {
    font-size: 44px;
  }
}

@media (max-width: 520px) {
  .container {
    width: min(100% - 22px, 1120px);
  }

  .logo {
    font-size: 16px;
  }

  .hero-actions {
    flex-direction: column;
  }

  .btn,
  .primary-btn,
  .full-btn {
    width: 100%;
  }

  .footer-links {
    flex-direction: column;
  }
}