/* QuickVet — marketing site styles
   Deep teal/navy primary, soft mint accents, clean white space */

:root {
  --color-primary: #0d3b4c;
  --color-primary-dark: #082a36;
  --color-primary-mid: #145568;
  --color-accent: #7ec8b8;
  --color-accent-soft: #e8f6f2;
  --color-accent-dark: #3a9e8a;
  --color-text: #1a2b32;
  --color-text-muted: #5a6d75;
  --color-bg: #ffffff;
  --color-bg-alt: #f5f9f8;
  --color-border: #d5e4e0;
  --color-success: #2d7a5f;
  --color-error: #b33a3a;
  --font-sans: "Inter", system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial, sans-serif;
  --radius: 10px;
  --radius-lg: 16px;
  --shadow: 0 4px 20px rgba(13, 59, 76, 0.08);
  --shadow-lg: 0 12px 40px rgba(13, 59, 76, 0.12);
  --max-width: 1100px;
  --header-h: 72px;
  --transition: 0.2s ease;
}

*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  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-mid);
  text-decoration: none;
  transition: color var(--transition);
}

a:hover,
a:focus-visible {
  color: var(--color-accent-dark);
}

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

ul {
  list-style: none;
}

/* ——— Layout ——— */
.container {
  width: 100%;
  max-width: var(--max-width);
  margin: 0 auto;
  padding: 0 1.25rem;
}

main {
  flex: 1;
}

/* ——— Header ——— */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: rgba(255, 255, 255, 0.95);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
  height: var(--header-h);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-h);
  padding-inline: clamp(1.5rem, 4vw, 2.5rem);
  gap: 1rem;
}

.logo {
  font-size: 1.375rem;
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

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

.nav-toggle {
  display: none;
  background: none;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  padding: 0.5rem 0.65rem;
  cursor: pointer;
  color: var(--color-primary);
  line-height: 1;
}

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

.nav-toggle-icon {
  display: block;
  width: 22px;
  height: 2px;
  background: currentColor;
  position: relative;
}

.nav-toggle-icon::before,
.nav-toggle-icon::after {
  content: "";
  position: absolute;
  left: 0;
  width: 22px;
  height: 2px;
  background: currentColor;
}

.nav-toggle-icon::before { top: -6px; }
.nav-toggle-icon::after { top: 6px; }

.nav-toggle[aria-expanded="true"] .nav-toggle-icon {
  background: transparent;
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::before {
  top: 0;
  transform: rotate(45deg);
}

.nav-toggle[aria-expanded="true"] .nav-toggle-icon::after {
  top: 0;
  transform: rotate(-45deg);
}

.site-nav {
  display: flex;
  align-items: center;
  justify-content: flex-end;
  gap: 0.25rem;
  min-width: 0;
  max-width: 100%;
  flex-wrap: wrap;
}

.site-nav a {
  color: var(--color-text);
  font-weight: 500;
  font-size: 0.95rem;
  padding: 0.5rem 0.85rem;
  border-radius: 8px;
}

.site-nav a:hover,
.site-nav a:focus-visible {
  background: var(--color-accent-soft);
  color: var(--color-primary);
}

.site-nav a.active {
  color: var(--color-primary);
  background: var(--color-accent-soft);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: 0.4rem;
  font-family: inherit;
  font-weight: 600;
  font-size: 0.95rem;
  padding: 0.7rem 1.35rem;
  border-radius: 8px;
  border: 2px solid transparent;
  cursor: pointer;
  transition: background var(--transition), color var(--transition), border-color var(--transition), box-shadow var(--transition);
  text-decoration: none;
  line-height: 1.3;
}

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

.btn-primary:hover,
.btn-primary:focus-visible {
  background: var(--color-primary-dark);
  color: #fff;
  box-shadow: var(--shadow);
}

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

.btn-secondary:hover,
.btn-secondary:focus-visible {
  background: var(--color-accent-soft);
  color: var(--color-primary);
}

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

.btn-accent:hover,
.btn-accent:focus-visible {
  background: var(--color-accent-dark);
  color: #fff;
}

.btn-lg {
  padding: 0.9rem 1.75rem;
  font-size: 1.05rem;
}

.nav-cta {
  margin-left: 0.5rem;
}

/* ——— Hero ——— */
.hero {
  background: linear-gradient(160deg, var(--color-primary) 0%, var(--color-primary-mid) 55%, #1a6b7a 100%);
  color: #fff;
  padding: 4.5rem 0 4rem;
  position: relative;
  overflow: hidden;
}

.hero::after {
  content: "";
  position: absolute;
  right: -8%;
  top: -20%;
  width: 50%;
  height: 140%;
  background: radial-gradient(ellipse, rgba(126, 200, 184, 0.18) 0%, transparent 70%);
  pointer-events: none;
}

.hero-inner {
  position: relative;
  z-index: 1;
  max-width: 680px;
}

.hero-badge {
  display: inline-block;
  background: rgba(126, 200, 184, 0.2);
  color: var(--color-accent);
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  text-transform: uppercase;
  padding: 0.35rem 0.85rem;
  border-radius: 999px;
  margin-bottom: 1.25rem;
}

.hero h1 {
  font-size: clamp(1.85rem, 4.5vw, 2.75rem);
  font-weight: 700;
  line-height: 1.2;
  letter-spacing: -0.03em;
  margin-bottom: 1.15rem;
}

.hero-lead {
  font-size: 1.15rem;
  line-height: 1.7;
  opacity: 0.92;
  margin-bottom: 2rem;
  max-width: 540px;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.85rem;
}

.hero .btn-primary {
  background: var(--color-accent);
  color: var(--color-primary-dark);
}

.hero .btn-primary:hover,
.hero .btn-primary:focus-visible {
  background: #fff;
  color: var(--color-primary);
}

.hero .btn-secondary {
  border-color: rgba(255, 255, 255, 0.5);
  color: #fff;
}

.hero .btn-secondary:hover,
.hero .btn-secondary:focus-visible {
  background: rgba(255, 255, 255, 0.12);
  border-color: #fff;
  color: #fff;
}

/* ——— Sections ——— */
.section {
  padding: 4rem 0;
}

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

.section-header {
  text-align: center;
  max-width: 620px;
  margin: 0 auto 2.75rem;
}

.section-header h2 {
  font-size: clamp(1.5rem, 3vw, 1.9rem);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  margin-bottom: 0.75rem;
}

.section-header p {
  color: var(--color-text-muted);
  font-size: 1.05rem;
}

.page-hero {
  padding: 3rem 0 2rem;
  background: var(--color-bg-alt);
  border-bottom: 1px solid var(--color-border);
}

.page-hero h1 {
  font-size: clamp(1.75rem, 3.5vw, 2.25rem);
  font-weight: 700;
  color: var(--color-primary);
  letter-spacing: -0.02em;
  margin-bottom: 0.65rem;
}

.page-hero p {
  color: var(--color-text-muted);
  font-size: 1.1rem;
  max-width: 580px;
}

/* ——— Cards ——— */
.card-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

.card {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 1.75rem;
  box-shadow: var(--shadow);
  transition: box-shadow var(--transition), transform var(--transition);
}

.card:hover {
  box-shadow: var(--shadow-lg);
  transform: translateY(-2px);
}

.card-icon {
  width: 48px;
  height: 48px;
  border-radius: 12px;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.4rem;
  margin-bottom: 1.1rem;
}

.card h3 {
  font-size: 1.15rem;
  font-weight: 650;
  color: var(--color-primary);
  margin-bottom: 0.55rem;
}

.card p {
  color: var(--color-text-muted);
  font-size: 0.98rem;
  line-height: 1.6;
}

/* ——— Feature list / preview ——— */
.feature-preview {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 2.5rem;
  align-items: center;
}

.feature-list li {
  display: flex;
  gap: 0.85rem;
  padding: 0.85rem 0;
  border-bottom: 1px solid var(--color-border);
  color: var(--color-text);
  font-size: 1rem;
}

.feature-list li:last-child {
  border-bottom: none;
}

.feature-list .check {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border-radius: 50%;
  background: var(--color-accent-soft);
  color: var(--color-accent-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.75rem;
  font-weight: 700;
  margin-top: 0.1rem;
}

.feature-panel {
  background: var(--color-primary);
  color: #fff;
  border-radius: var(--radius-lg);
  padding: 2.25rem;
  box-shadow: var(--shadow-lg);
}

.feature-panel h3 {
  font-size: 1.35rem;
  margin-bottom: 0.75rem;
}

.feature-panel p {
  opacity: 0.9;
  margin-bottom: 1.5rem;
}

/* ——— Features page grid ——— */
.features-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
}

.feature-block {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.feature-block .card-icon {
  margin-bottom: 1rem;
}

.feature-block h2 {
  font-size: 1.25rem;
  font-weight: 650;
  color: var(--color-primary);
  margin-bottom: 0.6rem;
}

.feature-block p {
  color: var(--color-text-muted);
  margin-bottom: 1rem;
}

.feature-block ul {
  list-style: disc;
  padding-left: 1.25rem;
  color: var(--color-text);
  font-size: 0.95rem;
}

.feature-block li {
  margin-bottom: 0.4rem;
  line-height: 1.5;
}

/* ——— About ——— */
.about-content {
  max-width: 720px;
  margin: 0 auto;
}

.about-content p {
  margin-bottom: 1.25rem;
  color: var(--color-text);
  font-size: 1.05rem;
}

.about-content .lead {
  font-size: 1.2rem;
  color: var(--color-primary);
  font-weight: 500;
}

.about-highlights {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.25rem;
  margin-top: 2.5rem;
}

.highlight {
  text-align: center;
  padding: 1.5rem 1rem;
  background: var(--color-accent-soft);
  border-radius: var(--radius);
}

.highlight strong {
  display: block;
  font-size: 1.1rem;
  color: var(--color-primary);
  margin-bottom: 0.35rem;
}

.highlight span {
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

/* ——— CTA banner ——— */
.cta-banner {
  background: linear-gradient(135deg, var(--color-primary) 0%, var(--color-primary-mid) 100%);
  color: #fff;
  padding: 3.5rem 0;
  text-align: center;
}

.cta-banner h2 {
  font-size: clamp(1.4rem, 3vw, 1.75rem);
  margin-bottom: 0.75rem;
  letter-spacing: -0.02em;
}

.cta-banner p {
  opacity: 0.9;
  margin-bottom: 1.75rem;
  max-width: 480px;
  margin-left: auto;
  margin-right: auto;
}

.cta-banner .btn-primary {
  background: var(--color-accent);
  color: var(--color-primary-dark);
}

.cta-banner .btn-primary:hover,
.cta-banner .btn-primary:focus-visible {
  background: #fff;
  color: var(--color-primary);
}

/* ——— Contact form ——— */
.contact-layout {
  display: grid;
  grid-template-columns: 1fr 1.4fr;
  gap: 2.5rem;
  align-items: start;
}

.contact-info {
  background: var(--color-bg-alt);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
}

.contact-info h2 {
  font-size: 1.2rem;
  color: var(--color-primary);
  margin-bottom: 0.75rem;
}

.contact-info p {
  color: var(--color-text-muted);
  font-size: 0.98rem;
  margin-bottom: 1.25rem;
}

.contact-info .email-link {
  display: inline-flex;
  align-items: center;
  gap: 0.4rem;
  font-weight: 600;
  color: var(--color-primary);
  font-size: 1.05rem;
}

.contact-info .note {
  margin-top: 1.5rem;
  padding-top: 1.25rem;
  border-top: 1px solid var(--color-border);
  font-size: 0.9rem;
  color: var(--color-text-muted);
}

.contact-form {
  background: var(--color-bg);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-lg);
  padding: 2rem;
  box-shadow: var(--shadow);
}

.form-row {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 1rem;
}

.form-group {
  margin-bottom: 1.15rem;
}

.form-group label {
  display: block;
  font-weight: 600;
  font-size: 0.9rem;
  color: var(--color-primary);
  margin-bottom: 0.4rem;
}

.form-group .required {
  color: var(--color-error);
}

.form-group input,
.form-group textarea {
  width: 100%;
  font-family: inherit;
  font-size: 1rem;
  padding: 0.7rem 0.9rem;
  border: 1px solid var(--color-border);
  border-radius: 8px;
  background: var(--color-bg);
  color: var(--color-text);
  transition: border-color var(--transition), box-shadow var(--transition);
}

.form-group input:hover,
.form-group textarea:hover {
  border-color: var(--color-accent);
}

.form-group input:focus,
.form-group textarea:focus {
  border-color: var(--color-primary-mid);
  box-shadow: 0 0 0 3px rgba(126, 200, 184, 0.35);
  outline: none;
}

.form-group input.error,
.form-group textarea.error {
  border-color: var(--color-error);
  box-shadow: 0 0 0 3px rgba(179, 58, 58, 0.15);
}

.field-error {
  display: none;
  color: var(--color-error);
  font-size: 0.85rem;
  margin-top: 0.35rem;
}

.field-error.visible {
  display: block;
}

.form-success {
  display: none;
  background: var(--color-accent-soft);
  border: 1px solid var(--color-accent);
  border-radius: var(--radius);
  padding: 1.25rem 1.5rem;
  color: var(--color-success);
  margin-bottom: 1.25rem;
}

.form-success.visible {
  display: block;
}

.form-success strong {
  display: block;
  margin-bottom: 0.35rem;
  color: var(--color-primary);
}

.form-actions {
  margin-top: 0.5rem;
}

/* ——— Footer ——— */
.site-footer {
  background: var(--color-primary-dark);
  color: rgba(255, 255, 255, 0.85);
  padding: 2.25rem 0;
  margin-top: auto;
}

.footer-inner {
  display: flex;
  flex-wrap: wrap;
  justify-content: space-between;
  align-items: center;
  gap: 1rem;
}

.footer-brand {
  font-weight: 700;
  color: #fff;
  font-size: 1.05rem;
}

.footer-meta {
  font-size: 0.9rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem 1.25rem;
  align-items: center;
}

.footer-meta a {
  color: var(--color-accent);
}

.footer-meta a:hover,
.footer-meta a:focus-visible {
  color: #fff;
}

/* ——— Skip link ——— */
.skip-link {
  position: absolute;
  left: -9999px;
  top: 0;
  z-index: 200;
  background: var(--color-primary);
  color: #fff;
  padding: 0.75rem 1.25rem;
  font-weight: 600;
}

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

/* ——— Responsive ——— */
@media (max-width: 900px) {
  .card-grid {
    grid-template-columns: 1fr;
  }

  .feature-preview {
    grid-template-columns: 1fr;
  }

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

  .about-highlights {
    grid-template-columns: 1fr;
  }

  .contact-layout {
    grid-template-columns: 1fr;
  }
}

@media (max-width: 768px) {
  .nav-toggle {
    display: block;
  }

  .site-nav {
    display: none;
    position: absolute;
    top: var(--header-h);
    left: 0;
    right: 0;
    flex-direction: column;
    align-items: stretch;
    background: #fff;
    border-bottom: 1px solid var(--color-border);
    padding: 0.75rem 1.25rem 1.25rem;
    box-shadow: var(--shadow);
    gap: 0.25rem;
  }

  .site-nav.open {
    display: flex;
  }

  .site-nav a {
    padding: 0.75rem 1rem;
  }

  .nav-cta {
    margin-left: 0;
    margin-top: 0.5rem;
    text-align: center;
  }

  .hero {
    padding: 3rem 0 2.75rem;
  }

  .section {
    padding: 3rem 0;
  }

  .form-row {
    grid-template-columns: 1fr;
  }

  .footer-inner {
    flex-direction: column;
    text-align: center;
  }

  .footer-meta {
    justify-content: center;
  }
}

@media (max-width: 480px) {
  .hero-actions {
    flex-direction: column;
  }

  .hero-actions .btn {
    width: 100%;
  }
}