/* Zontos — mobile-first */
:root {
  --z-primary: #0a4d8c;
  --z-primary-dark: #063560;
  --z-accent: #1a8fd4;
  --z-surface: #f4f8fc;
  --z-text: #1a2b3c;
  --z-muted: #5a6d7d;
  --z-white: #fff;
  --z-radius: 8px;
  --z-shadow: 0 2px 12px rgba(10, 77, 140, 0.08);
  --z-header-h: 64px;
  --z-max: 1100px;
  --z-content: 720px;
}

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

body.zontos-theme {
  margin: 0;
  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Oxygen-Sans, Ubuntu, Cantarell, "Helvetica Neue", sans-serif;
  font-size: 17px;
  line-height: 1.6;
  color: var(--z-text);
  background: var(--z-white);
}

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

a {
  color: var(--z-primary);
}

.zontos-container {
  width: min(100% - 2rem, var(--z-max));
  margin-inline: auto;
}

.zontos-narrow {
  width: min(100% - 2rem, var(--z-content));
  margin-inline: auto;
}

/* Header */
.zontos-header {
  position: sticky;
  top: 0;
  z-index: 100;
  background: var(--z-white);
  border-bottom: 1px solid #e2eaf2;
  box-shadow: var(--z-shadow);
}

.zontos-header__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  min-height: var(--z-header-h);
  gap: 1rem;
}

.zontos-logo {
  font-weight: 700;
  font-size: 1.1rem;
  color: var(--z-primary);
  text-decoration: none;
  line-height: 1.2;
}

.zontos-logo span {
  display: block;
  font-size: 0.7rem;
  font-weight: 500;
  color: var(--z-muted);
}

.zontos-nav-toggle {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border: none;
  background: var(--z-surface);
  border-radius: var(--z-radius);
  cursor: pointer;
  font-size: 1.25rem;
}

.zontos-nav {
  display: none;
  position: absolute;
  top: var(--z-header-h);
  left: 0;
  right: 0;
  background: var(--z-white);
  border-bottom: 1px solid #e2eaf2;
  padding: 1rem;
  flex-direction: column;
  gap: 0.25rem;
}

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

.zontos-nav a {
  display: block;
  padding: 0.75rem 1rem;
  text-decoration: none;
  font-weight: 500;
  border-radius: var(--z-radius);
  min-height: 44px;
}

.zontos-nav a:hover,
.zontos-nav .current-menu-item a {
  background: var(--z-surface);
  color: var(--z-primary);
}

.zontos-header__cta {
  display: none;
}

@media (min-width: 768px) {
  .zontos-nav-toggle {
    display: none;
  }

  .zontos-nav {
    display: flex !important;
    position: static;
    flex-direction: row;
    align-items: center;
    border: none;
    padding: 0;
    background: transparent;
    gap: 0.5rem;
  }

  .zontos-nav a {
    padding: 0.5rem 0.75rem;
    min-height: auto;
  }

  .zontos-header__cta {
    display: inline-flex;
  }
}

/* Buttons */
.zontos-btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-height: 44px;
  padding: 0.65rem 1.25rem;
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  border-radius: var(--z-radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: background 0.15s, color 0.15s;
}

.zontos-btn--primary {
  background: var(--z-primary);
  color: var(--z-white) !important;
}

.zontos-btn--primary:hover {
  background: var(--z-primary-dark);
}

.zontos-btn--outline {
  background: transparent;
  color: var(--z-primary) !important;
  border-color: var(--z-primary);
}

.zontos-btn--outline:hover {
  background: var(--z-surface);
}

.zontos-btn--block {
  width: 100%;
}

/* Hero */
.zontos-hero {
  background: linear-gradient(160deg, var(--z-surface) 0%, var(--z-white) 55%);
  padding: 0;
  text-align: center;
}

.zontos-hero--has-image {
  background: var(--z-primary-dark);
}

.zontos-hero__visual {
  line-height: 0;
  background: var(--z-primary-dark);
}

.zontos-hero__visual img {
  display: block;
  width: 100%;
  height: auto;
  max-height: min(85vh, 720px);
  object-fit: cover;
  object-position: center center;
}

.zontos-hero__bar {
  padding: 1.25rem 0 1.5rem;
  background: var(--z-white);
  border-bottom: 1px solid #e2eaf2;
}

.zontos-hero--has-image .zontos-hero__bar {
  background: var(--z-surface);
}

.zontos-hero h1 {
  font-size: clamp(1.75rem, 5vw, 2.5rem);
  line-height: 1.2;
  margin: 0 0 0.75rem;
  color: var(--z-primary-dark);
}

.zontos-hero:not(.zontos-hero--has-image) .zontos-container {
  padding: 2.5rem 0 0;
}

.zontos-hero__lead {
  font-size: 1.1rem;
  color: var(--z-muted);
  max-width: 36ch;
  margin: 0 auto 1.5rem;
}

.zontos-hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  justify-content: center;
}

@media (min-width: 768px) {
  .zontos-hero__visual img {
    max-height: min(78vh, 820px);
    object-fit: contain;
    object-position: center top;
  }
}

/* Sections */
.zontos-section {
  padding: 2.5rem 0;
}

.zontos-section--alt {
  background: var(--z-surface);
}

.zontos-section h2 {
  font-size: 1.5rem;
  color: var(--z-primary-dark);
  margin: 0 0 1rem;
  text-align: center;
}

.zontos-section__intro {
  text-align: center;
  color: var(--z-muted);
  max-width: 50ch;
  margin: 0 auto 1.5rem;
}

/* Cards grid */
.zontos-cards {
  display: grid;
  gap: 1rem;
  grid-template-columns: 1fr;
}

@media (min-width: 600px) {
  .zontos-cards--2 {
    grid-template-columns: repeat(2, 1fr);
  }

  .zontos-cards--3 {
    grid-template-columns: repeat(3, 1fr);
  }

  .zontos-cards--4 {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 900px) {
  .zontos-cards--4 {
    grid-template-columns: repeat(4, 1fr);
  }
}

.zontos-card {
  background: var(--z-white);
  border: 1px solid #e2eaf2;
  border-radius: var(--z-radius);
  padding: 1.25rem;
  box-shadow: var(--z-shadow);
}

.zontos-card h3 {
  margin: 0 0 0.5rem;
  font-size: 1.05rem;
  color: var(--z-primary);
}

.zontos-card p {
  margin: 0;
  font-size: 0.95rem;
  color: var(--z-muted);
}

.zontos-card__value {
  font-size: 1.35rem;
  font-weight: 700;
  color: var(--z-primary-dark);
}

/* Bullets */
.zontos-bullets {
  list-style: none;
  padding: 0;
  margin: 0;
  display: grid;
  gap: 1rem;
}

.zontos-bullets li {
  padding-left: 1.5rem;
  position: relative;
}

.zontos-bullets li::before {
  content: "";
  position: absolute;
  left: 0;
  top: 0.55em;
  width: 8px;
  height: 8px;
  background: var(--z-accent);
  border-radius: 50%;
}

/* Details / accordion */
.zontos-details {
  border: 1px solid #e2eaf2;
  border-radius: var(--z-radius);
  margin-bottom: 0.5rem;
  overflow: hidden;
}

.zontos-details summary {
  padding: 1rem 1.25rem;
  font-weight: 600;
  cursor: pointer;
  list-style: none;
  min-height: 44px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--z-surface);
}

.zontos-details summary::-webkit-details-marker {
  display: none;
}

.zontos-details summary::after {
  content: "+";
  font-size: 1.25rem;
  color: var(--z-primary);
}

.zontos-details[open] summary::after {
  content: "−";
}

.zontos-details__body {
  padding: 1rem 1.25rem 1.25rem;
}

/* Shop */
.zontos-compare {
  width: 100%;
  border-collapse: collapse;
  font-size: 0.95rem;
  display: none;
}

@media (min-width: 768px) {
  .zontos-compare {
    display: table;
  }
}

.zontos-compare th,
.zontos-compare td {
  padding: 0.75rem 1rem;
  border: 1px solid #e2eaf2;
  text-align: left;
}

.zontos-compare th {
  background: var(--z-primary);
  color: var(--z-white);
}

.zontos-product {
  border: 1px solid #e2eaf2;
  border-radius: var(--z-radius);
  padding: 1.5rem;
  background: var(--z-white);
}

.zontos-product__price {
  font-size: 1.75rem;
  font-weight: 700;
  color: var(--z-primary);
  margin: 0.5rem 0 1rem;
}

.zontos-product ul {
  margin: 0 0 1.25rem;
  padding-left: 1.25rem;
  color: var(--z-muted);
  font-size: 0.95rem;
}

.zontos-product ul li {
  margin-bottom: 0.35rem;
}

/* Testimonials */
.zontos-filters {
  display: flex;
  flex-wrap: wrap;
  gap: 0.5rem;
  justify-content: center;
  margin-bottom: 1.5rem;
}

.zontos-filter {
  min-height: 44px;
  padding: 0.5rem 1rem;
  border: 1px solid #e2eaf2;
  border-radius: 999px;
  background: var(--z-white);
  font-size: 0.9rem;
  cursor: pointer;
  color: var(--z-text);
}

.zontos-filter.is-active {
  background: var(--z-primary);
  color: var(--z-white);
  border-color: var(--z-primary);
}

.zontos-testimonial-card {
  display: flex;
  flex-direction: column;
  height: 100%;
}

.zontos-testimonial-card[data-hidden="true"] {
  display: none;
}

.zontos-testimonial-card__outcome {
  flex: 1;
  font-size: 0.95rem;
  color: var(--z-muted);
}

.zontos-featured {
  background: var(--z-surface);
  border-radius: var(--z-radius);
  padding: 1.5rem;
  margin-bottom: 2rem;
  border-left: 4px solid var(--z-accent);
}

/* Science */
.zontos-search {
  width: 100%;
  max-width: 480px;
  margin: 0 auto 1.5rem;
  display: block;
  min-height: 44px;
  padding: 0.65rem 1rem;
  font-size: 1rem;
  border: 1px solid #c5d4e3;
  border-radius: var(--z-radius);
}

.zontos-az {
  display: flex;
  flex-wrap: wrap;
  gap: 0.35rem;
  justify-content: center;
  margin-bottom: 2rem;
}

.zontos-az a {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  min-width: 36px;
  min-height: 36px;
  padding: 0 0.5rem;
  text-decoration: none;
  font-weight: 600;
  font-size: 0.85rem;
  border-radius: 4px;
  background: var(--z-surface);
}

.zontos-az a:hover {
  background: var(--z-primary);
  color: var(--z-white);
}

.zontos-condition-list {
  list-style: none;
  padding: 0;
  margin: 0;
  columns: 1;
}

@media (min-width: 600px) {
  .zontos-condition-list {
    columns: 2;
  }
}

@media (min-width: 900px) {
  .zontos-condition-list {
    columns: 3;
  }
}

.zontos-condition-list li {
  margin-bottom: 0.5rem;
  break-inside: avoid;
}

.zontos-study-card {
  margin-bottom: 1rem;
}

.zontos-study-card h3 {
  font-size: 1rem;
  margin: 0 0 0.5rem;
}

.zontos-study-card a.zontos-link {
  font-weight: 600;
  font-size: 0.9rem;
}

/* Footer */
.zontos-footer {
  background: var(--z-primary-dark);
  color: #c5d9ec;
  padding: 2rem 0 1.5rem;
  margin-top: 3rem;
}

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

.zontos-footer__grid {
  display: grid;
  gap: 1.5rem;
  margin-bottom: 1.5rem;
}

@media (min-width: 600px) {
  .zontos-footer__grid {
    grid-template-columns: 1fr 1fr;
  }
}

.zontos-footer nav {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
}

.zontos-footer nav a {
  text-decoration: none;
  font-size: 0.95rem;
}

.zontos-disclaimer {
  font-size: 0.8rem;
  line-height: 1.5;
  opacity: 0.85;
  margin: 1rem 0 0;
  border-top: 1px solid rgba(255, 255, 255, 0.15);
  padding-top: 1rem;
}

/* Sticky mobile CTA */
.zontos-sticky-cta {
  position: fixed;
  bottom: 0;
  left: 0;
  right: 0;
  padding: 0.75rem 1rem;
  background: var(--z-white);
  border-top: 1px solid #e2eaf2;
  box-shadow: 0 -4px 16px rgba(0, 0, 0, 0.08);
  z-index: 90;
  display: flex;
  gap: 0.5rem;
}

@media (min-width: 768px) {
  .zontos-sticky-cta {
    display: none;
  }

  body.zontos-has-sticky-cta {
    padding-bottom: 0;
  }
}

body.zontos-has-sticky-cta {
  padding-bottom: 72px;
}

/* Page header */
.zontos-page-header {
  background: var(--z-surface);
  padding: 2rem 0;
  text-align: center;
}

.zontos-page-header h1 {
  margin: 0;
  font-size: clamp(1.5rem, 4vw, 2rem);
  color: var(--z-primary-dark);
}

.zontos-page-header p {
  margin: 0.5rem auto 0;
  color: var(--z-muted);
  max-width: 50ch;
}

.zontos-cta-band {
  text-align: center;
  padding: 2rem;
  background: var(--z-primary);
  color: var(--z-white);
  border-radius: var(--z-radius);
}

.zontos-cta-band h2 {
  color: var(--z-white);
  margin-top: 0;
}

.zontos-cta-band .zontos-btn--outline {
  border-color: var(--z-white);
  color: var(--z-white) !important;
}

.zontos-cta-band .zontos-btn--primary {
  background: var(--z-white);
  color: var(--z-primary) !important;
}

.zontos-hidden {
  display: none !important;
}