/* KH Trading — Canadian pulse exporter */

:root {
  --color-primary: #1e4d3a;
  --color-primary-dark: #163828;
  --color-accent: #c4692a;
  --color-accent-hover: #a8561f;
  --color-bg: #f7f4ef;
  --color-bg-alt: #efeae2;
  --color-text: #2c2c2c;
  --color-text-muted: #5a5a5a;
  --color-border: #d8d0c4;
  --color-white: #ffffff;
  --font-sans: "Source Sans 3", system-ui, -apple-system, "Segoe UI", sans-serif;
  --max-width: 1120px;
  --content-width: 720px;
  --radius: 8px;
  --shadow: 0 2px 12px rgba(30, 77, 58, 0.08);
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  font-family: var(--font-sans);
  font-size: 1.0625rem;
  line-height: 1.65;
  color: var(--color-text);
  background: var(--color-bg);
  min-height: 100vh;
  display: flex;
  flex-direction: column;
}

img {
  max-width: 100%;
  height: auto;
  display: block;
}

a {
  color: var(--color-primary);
  text-decoration-thickness: 1px;
  text-underline-offset: 3px;
}

a:hover {
  color: var(--color-accent);
}

a:focus-visible,
button:focus-visible,
input:focus-visible,
textarea:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 2px;
}

.skip-link {
  position: absolute;
  top: -100%;
  left: 1rem;
  padding: 0.5rem 1rem;
  background: var(--color-primary);
  color: var(--color-white);
  z-index: 100;
  border-radius: var(--radius);
}

.skip-link:focus {
  top: 1rem;
}

/* Header */
.site-header {
  background: var(--color-white);
  border-bottom: 1px solid var(--color-border);
  position: sticky;
  top: 0;
  z-index: 50;
}

.header-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 1rem 1.25rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
}

.logo {
  font-weight: 700;
  font-size: 1.2rem;
  color: var(--color-primary);
  text-decoration: none;
  letter-spacing: -0.02em;
}

.logo:hover {
  color: var(--color-primary-dark);
}

.site-nav ul {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  gap: 0.25rem 1.25rem;
  flex-wrap: wrap;
}

.site-nav a {
  text-decoration: none;
  font-weight: 600;
  font-size: 0.95rem;
  color: var(--color-text-muted);
  padding: 0.35rem 0;
  border-bottom: 2px solid transparent;
}

.site-nav a:hover,
.site-nav a[aria-current="page"] {
  color: var(--color-primary);
  border-bottom-color: var(--color-accent);
}

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 0.4rem 0.65rem;
  font: inherit;
  font-weight: 600;
  color: var(--color-primary);
  cursor: pointer;
}

@media (max-width: 640px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    display: none;
    width: 100%;
  }

  .site-nav.is-open {
    display: block;
  }

  .header-inner {
    flex-wrap: wrap;
  }

  .site-nav ul {
    flex-direction: column;
    padding: 0.5rem 0 0.25rem;
  }
}

/* Main layout */
main {
  flex: 1;
}

.container {
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

.container--narrow {
  max-width: var(--content-width);
}

.section {
  padding: 3rem 0;
}

.section--alt {
  background: var(--color-bg-alt);
}

.section-title {
  font-size: clamp(1.5rem, 3vw, 1.875rem);
  font-weight: 700;
  color: var(--color-primary);
  margin: 0 0 1rem;
  line-height: 1.25;
}

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

.lead {
  font-size: 1.125rem;
  color: var(--color-text-muted);
  margin: 0 0 1.5rem;
}

/* Hero */
.hero {
  padding: 2.5rem 0 3rem;
}

.hero-grid {
  display: grid;
  gap: 2rem;
  align-items: center;
}

@media (min-width: 768px) {
  .hero-grid {
    grid-template-columns: 1fr 1fr;
    gap: 3rem;
  }
}

.hero-tagline {
  text-transform: uppercase;
  letter-spacing: 0.08em;
  font-size: 0.8125rem;
  font-weight: 700;
  color: var(--color-accent);
  margin: 0 0 0.75rem;
}

.hero h1 {
  font-size: clamp(2rem, 4.5vw, 2.75rem);
  font-weight: 700;
  color: var(--color-primary);
  line-height: 1.15;
  margin: 0 0 1rem;
}

.hero-image {
  border-radius: var(--radius);
  overflow: hidden;
  box-shadow: var(--shadow);
  border: 1px solid var(--color-border);
}

.hero-image figcaption {
  font-size: 0.8125rem;
  color: var(--color-text-muted);
  padding: 0.5rem 0.75rem;
  background: var(--color-white);
  border-top: 1px solid var(--color-border);
}

/* Key points */
.key-points {
  list-style: none;
  margin: 0;
  padding: 0;
  display: grid;
  gap: 1.25rem;
}

@media (min-width: 640px) {
  .key-points {
    grid-template-columns: repeat(3, 1fr);
  }
}

.key-points li {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.key-points h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--color-primary);
}

.key-points p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-muted);
}

/* Page header (inner pages) */
.page-header {
  padding: 2.5rem 0 1.5rem;
  border-bottom: 1px solid var(--color-border);
  background: var(--color-white);
}

.page-header h1 {
  margin: 0 0 0.5rem;
  font-size: clamp(1.75rem, 4vw, 2.25rem);
  color: var(--color-primary);
}

.page-header p {
  margin: 0;
  color: var(--color-text-muted);
  max-width: 40rem;
}

/* Prose */
.prose h2 {
  font-size: 1.25rem;
  color: var(--color-primary);
  margin: 2rem 0 0.75rem;
}

.prose h2:first-child {
  margin-top: 0;
}

.prose p,
.prose ul {
  margin: 0 0 1rem;
  color: var(--color-text-muted);
}

.prose ul {
  padding-left: 1.25rem;
}

/* Contact */
.contact-grid {
  display: grid;
  gap: 2.5rem;
}

@media (min-width: 768px) {
  .contact-grid {
    grid-template-columns: 1fr 1.2fr;
  }
}

.contact-details dl {
  margin: 0;
}

.contact-details dt {
  font-weight: 700;
  color: var(--color-primary);
  margin-top: 1.25rem;
}

.contact-details dt:first-child {
  margin-top: 0;
}

.contact-details dd {
  margin: 0.25rem 0 0;
  color: var(--color-text-muted);
}

.contact-form {
  background: var(--color-white);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 1.5rem;
  box-shadow: var(--shadow);
}

.form-group {
  margin-bottom: 1.25rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  margin-bottom: 0.35rem;
  color: var(--color-text);
}

.form-group input,
.form-group textarea {
  width: 100%;
  font: inherit;
  padding: 0.65rem 0.75rem;
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  background: var(--color-bg);
}

.form-group textarea {
  min-height: 140px;
  resize: vertical;
}

.form-group input[aria-invalid="true"],
.form-group textarea[aria-invalid="true"] {
  border-color: #b91c1c;
}

.field-error {
  font-size: 0.875rem;
  color: #b91c1c;
  margin: 0.35rem 0 0;
}

.btn {
  display: inline-block;
  font: inherit;
  font-weight: 600;
  padding: 0.7rem 1.35rem;
  border-radius: var(--radius);
  border: none;
  cursor: pointer;
  text-decoration: none;
  transition: background 0.15s ease, color 0.15s ease;
}

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

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

.form-notice {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin: 1rem 0 0;
}

.form-notice a {
  font-weight: 600;
}

/* Footer */
.site-footer {
  background: var(--color-primary);
  color: rgba(255, 255, 255, 0.85);
  padding: 2rem 1.25rem;
  margin-top: auto;
}

.footer-inner {
  max-width: var(--max-width);
  margin: 0 auto;
  display: flex;
  flex-wrap: wrap;
  gap: 1rem 2rem;
  justify-content: space-between;
  align-items: center;
  font-size: 0.9375rem;
}

.site-footer a {
  color: var(--color-white);
}

.site-footer a:hover {
  color: #fcd9b8;
}

.footer-meta {
  margin: 0;
}

.footer-links {
  margin: 0;
  display: flex;
  gap: 1.25rem;
  flex-wrap: wrap;
}