/* ============================================================
   COMPONENTS — All Reusable UI Components
   Dr. Arndt Schwaiger Website V.5.00
   ============================================================ */


/* ============================================================
   SITE HEADER
   ============================================================ */
.site-header {
  position: sticky;
  top: 0;
  z-index: 100;
  border-bottom: 1px solid var(--header-border);
  height: var(--header-height);
  background: rgba(255,255,255,0.97);
}

.site-header .container {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  gap: var(--raw-space-6);
}

.site-logo {
  font-family: var(--font-heading);
  font-weight: 800;
  font-size: var(--raw-text-lg);
  color: var(--color-text-heading);
  text-decoration: none;
  letter-spacing: -0.02em;
  flex-shrink: 0;
}

.site-logo:hover {
  color: var(--color-brand);
  text-decoration: none;
}

.site-logo img {
  height: 24px;
  width: auto;
}

/* Navigation */
.site-nav {
  flex: 1;
}

.site-nav ul {
  display: flex;
  gap: var(--raw-space-1);
  list-style: none;
  margin: 0;
  padding: 0;
  justify-content: center;
}

.site-nav li {
  margin: 0;
  padding: 0;
}

.site-nav a {
  font-family: var(--font-ui);
  font-size: var(--raw-text-sm);
  font-weight: 500;
  color: var(--color-text-secondary);
  text-decoration: none;
  padding: var(--raw-space-2) var(--raw-space-3);
  border-radius: var(--raw-radius-md);
  transition: color var(--raw-transition-fast), background var(--raw-transition-fast);
  white-space: nowrap;
}

.site-nav a:hover,
.site-nav a.active {
  color: var(--color-brand);
  background: var(--raw-blue-light);
}

/* Mobile language switch (hidden on desktop, shown inside mobile nav) */
.lang-switch--mobile {
  display: none;
}

/* Language Switch */
.lang-switch {
  display: flex;
  align-items: center;
  gap: var(--raw-space-2);
  font-family: var(--font-ui);
  font-size: var(--raw-text-xs);
  font-weight: 600;
  flex-shrink: 0;
}

.lang-switch a {
  color: var(--color-text-muted);
  text-decoration: none;
  padding: var(--raw-space-1) var(--raw-space-2);
  border-radius: var(--raw-radius-sm);
  transition: color var(--raw-transition-fast);
}

.lang-switch a:hover {
  color: var(--color-brand);
}

.lang-switch a.active {
  color: var(--color-brand);
  background: var(--raw-blue-light);
}

.lang-switch span {
  color: var(--color-text-disabled);
}

/* Mobile Nav Toggle */
.nav-toggle {
  display: none;
  width: 44px;
  height: 44px;
  padding: 10px;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  background: var(--color-brand);
  border-radius: var(--raw-radius-md);
  cursor: pointer;
}

.nav-toggle span {
  display: block;
  width: 100%;
  height: 2px;
  background: var(--raw-white);
  border-radius: 1px;
  transition: transform var(--raw-transition-base), opacity var(--raw-transition-fast);
}

.nav-toggle[aria-expanded="true"] span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}

.nav-toggle[aria-expanded="true"] span:nth-child(2) {
  opacity: 0;
}

.nav-toggle[aria-expanded="true"] span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobile Navigation — kicks in at 992px due to 7 nav items */
@media (max-width: 992px) {
  .nav-toggle {
    display: flex;
  }

  /* Hide desktop nav items by default, show via hamburger */
  .site-nav {
    display: none;
  }

  .site-nav.is-open {
    display: block;
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    bottom: 0;
    background: var(--color-surface-page);
    padding: var(--raw-space-8) var(--raw-space-6);
    overflow-y: auto;
    z-index: 9999;
    border-top: 1px solid var(--color-surface-rule);
    -webkit-transform: translateZ(0);
    transform: translateZ(0);
  }

  .site-nav.is-open ul {
    display: flex;
    flex-direction: column;
    gap: var(--raw-space-2);
    list-style: none;
    margin: 0;
    padding: 0;
  }

  .site-nav.is-open a {
    font-size: var(--raw-text-lg);
    padding: var(--raw-space-3) var(--raw-space-4);
    display: block;
  }

  .lang-switch {
    display: none;
  }

  .site-nav .lang-switch--mobile {
    display: none;
  }

  .site-nav.is-open .lang-switch--mobile {
    display: flex;
    margin-top: var(--raw-space-8);
    padding-top: var(--raw-space-6);
    border-top: 1px solid var(--color-surface-rule);
    justify-content: center;
    font-size: var(--raw-text-md);
  }

  .site-nav.is-open .lang-switch--mobile a {
    padding: var(--raw-space-2) var(--raw-space-4);
  }
}


/* ============================================================
   BUTTONS
   ============================================================ */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--raw-space-2);
  font-family: var(--font-ui);
  font-size: var(--btn-font-size);
  font-weight: 600;
  line-height: 1;
  text-decoration: none;
  padding: var(--btn-padding);
  border-radius: var(--btn-radius);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all var(--raw-transition-fast);
  white-space: nowrap;
  min-height: 44px;
}

.btn--primary {
  background: var(--color-brand);
  color: var(--color-text-inverse);
  border-color: var(--color-brand);
}

.btn--primary:hover {
  background: var(--color-brand-hover);
  border-color: var(--color-brand-hover);
  color: var(--color-text-inverse);
  text-decoration: none;
  box-shadow: 0 4px 12px rgba(0, 114, 178, 0.3);
}

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

.btn--secondary:hover {
  background: var(--raw-blue-light);
  color: var(--color-brand-hover);
  text-decoration: none;
}

.btn--large {
  font-size: var(--btn-font-size-lg);
  padding: var(--btn-padding-lg);
}

.btn--icon {
  padding: 0.5em;
  border-radius: 50%;
}

.btn svg {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
}


/* ============================================================
   CARDS
   ============================================================ */
.card {
  background: var(--color-surface-page);
  border: 1px solid var(--color-surface-rule);
  border-radius: var(--card-radius);
  padding: var(--card-padding);
  box-shadow: var(--card-shadow);
  transition: box-shadow var(--raw-transition-base), transform var(--raw-transition-base);
}

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

.card__icon {
  width: 48px;
  height: 48px;
  display: flex;
  align-items: center;
  justify-content: center;
  border-radius: var(--raw-radius-lg);
  margin-bottom: var(--raw-space-5);
}

.card__icon svg {
  width: 24px;
  height: 24px;
}

.card__icon--blue { background: var(--raw-blue-light); color: var(--raw-blue); }
.card__icon--vermilion { background: var(--raw-vermilion-light); color: var(--raw-vermilion); }
.card__icon--orange { background: var(--raw-orange-light); color: var(--raw-orange); }
.card__icon--teal { background: var(--raw-teal-light); color: var(--raw-teal); }
.card__icon--sky { background: var(--raw-sky-light); color: var(--raw-sky); }

.card__title {
  font-family: var(--font-heading);
  font-size: var(--raw-text-lg);
  font-weight: 600;
  color: var(--color-text-heading);
  margin-bottom: var(--raw-space-3);
}

.card__body {
  font-size: var(--raw-text-md);
  color: var(--color-text-secondary);
  line-height: var(--line-height-tight);
  margin-bottom: var(--raw-space-4);
}

.card__body:last-child {
  margin-bottom: 0;
}

.card__link {
  font-family: var(--font-ui);
  font-size: var(--raw-text-sm);
  font-weight: 600;
  color: var(--color-brand);
  text-decoration: none;
  display: inline-flex;
  align-items: center;
  gap: var(--raw-space-2);
  transition: gap var(--raw-transition-fast);
}

.card__link:hover {
  gap: var(--raw-space-3);
  text-decoration: none;
}

/* Card with top border accent */
.card--accent-blue { border-top: 3px solid var(--raw-blue); }
.card--accent-vermilion { border-top: 3px solid var(--raw-vermilion); }
.card--accent-orange { border-top: 3px solid var(--raw-orange); }
.card--accent-teal { border-top: 3px solid var(--raw-teal); }


/* ============================================================
   BADGES
   ============================================================ */
.badge {
  display: inline-flex;
  align-items: center;
  font-family: var(--font-heading);
  font-size: var(--raw-text-2xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.06em;
  padding: 0.3em 0.85em;
  border-radius: var(--raw-radius-full);
  white-space: nowrap;
}

.badge--blue { background: var(--raw-blue-light); color: var(--raw-blue-dark); }
.badge--vermilion { background: var(--raw-vermilion-light); color: var(--raw-vermilion-dark); }
.badge--orange { background: var(--raw-orange-light); color: var(--raw-orange-dark); }
.badge--teal { background: var(--raw-teal-light); color: var(--raw-teal-dark); }
.badge--gray { background: var(--color-surface-muted); color: var(--color-text-secondary); }
.badge--dark { background: var(--color-surface-dark); color: var(--color-text-inverse); }


/* ============================================================
   QUICK ANSWER BLOCK (GEO-optimized for LLM citation)
   ============================================================ */
.quick-answer {
  margin: var(--raw-space-8) 0;
  padding: var(--raw-space-6) var(--raw-space-8);
  background: var(--raw-blue-light);
  border-left: 4px solid var(--color-brand);
  border-radius: 0 var(--raw-radius-xl) var(--raw-radius-xl) 0;
  font-family: var(--font-ui);
  font-size: var(--raw-text-base);
  line-height: var(--line-height-tight);
}

.quick-answer p {
  margin-bottom: var(--raw-space-2);
  max-width: none;
}

.quick-answer p:last-child {
  margin-bottom: 0;
}


/* ============================================================
   TESTIMONIALS CAROUSEL
   ============================================================ */
.testimonials {
  position: relative;
}

.testimonials__track {
  display: flex;
  gap: var(--testimonial-gap);
  overflow-x: auto;
  scroll-snap-type: x mandatory;
  scroll-behavior: smooth;
  -webkit-overflow-scrolling: touch;
  padding: var(--raw-space-4) var(--raw-space-2);
  margin: 0 calc(-1 * var(--raw-space-2));

  /* Hide scrollbar */
  scrollbar-width: none;
  -ms-overflow-style: none;
}

.testimonials__track::-webkit-scrollbar {
  display: none;
}

.testimonial {
  flex: 0 0 min(100%, 380px);
  scroll-snap-align: start;
  background: var(--color-surface-page);
  border: 1px solid var(--color-surface-rule);
  border-radius: var(--card-radius);
  padding: var(--raw-space-6) var(--raw-space-8);
  box-shadow: var(--card-shadow);
}

.testimonial__text {
  font-style: italic;
  font-size: var(--raw-text-md);
  color: var(--color-text-secondary);
  line-height: var(--line-height-body);
  margin-bottom: var(--raw-space-5);
  position: relative;
}

.testimonial__text::before {
  content: "\201C";
  font-family: var(--font-heading);
  font-size: 3rem;
  font-weight: 800;
  color: var(--raw-blue);
  opacity: 0.15;
  position: absolute;
  top: -0.5em;
  left: -0.1em;
  line-height: 1;
}

.testimonial__author {
  display: flex;
  align-items: center;
  gap: var(--raw-space-3);
}

.testimonial__avatar {
  width: 48px;
  height: 48px;
  border-radius: 50%;
  object-fit: cover;
  flex-shrink: 0;
}

.testimonial__name {
  font-family: var(--font-heading);
  font-weight: 600;
  font-size: var(--raw-text-sm);
  color: var(--color-text-heading);
}

.testimonial__role {
  font-family: var(--font-ui);
  font-size: var(--raw-text-xs);
  color: var(--color-text-caption);
}

/* Carousel Controls */
.testimonials__controls {
  display: flex;
  justify-content: center;
  gap: var(--raw-space-4);
  margin-top: var(--raw-space-6);
}

.testimonials__btn {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-surface-page);
  border: 1px solid var(--color-surface-rule);
  border-radius: 50%;
  color: var(--color-text-secondary);
  cursor: pointer;
  transition: all var(--raw-transition-fast);
}

.testimonials__btn:hover {
  background: var(--color-brand);
  color: var(--color-text-inverse);
  border-color: var(--color-brand);
}

.testimonials__btn svg {
  width: 16px;
  height: 16px;
}


/* ============================================================
   LOGO WALL
   ============================================================ */
.logo-wall {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: var(--logo-gap);
  align-items: center;
  justify-items: center;
}

.logo-wall__item {
  display: flex;
  align-items: center;
  justify-content: center;
  padding: var(--raw-space-4);
  transition: opacity var(--raw-transition-fast);
  opacity: 0.7;
}

.logo-wall__item:hover {
  opacity: 1;
}

.logo-wall__item img {
  max-width: 100%;
  max-height: 150px;
  width: auto;
  height: auto;
  object-fit: contain;
  filter: grayscale(100%);
  transition: filter var(--raw-transition-base);
}

.logo-wall__item:hover img {
  filter: grayscale(0%);
}

@media (max-width: 768px) {
  .logo-wall {
    grid-template-columns: repeat(3, 1fr);
    gap: var(--raw-space-4);
  }
}

@media (max-width: 480px) {
  .logo-wall {
    grid-template-columns: repeat(2, 1fr);
    gap: var(--raw-space-4);
  }

  .logo-wall__item img {
    max-height: 75px;
  }
}


/* ============================================================
   MEDIA CARD
   ============================================================ */
.media-card {
  display: flex;
  flex-direction: column;
  background: var(--color-surface-page);
  border: 1px solid var(--color-surface-rule);
  border-radius: var(--card-radius);
  overflow: hidden;
  box-shadow: var(--card-shadow);
  transition: box-shadow var(--raw-transition-base), transform var(--raw-transition-base);
  text-decoration: none;
  color: inherit;
}

.media-card:hover {
  box-shadow: var(--card-shadow-hover);
  transform: translateY(-2px);
  text-decoration: none;
  color: inherit;
}

.media-card__image {
  position: relative;
  aspect-ratio: 16 / 9;
  overflow: hidden;
  background: var(--color-surface-muted);
}

.media-card__image img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--raw-transition-base);
}

.media-card:hover .media-card__image img {
  transform: scale(1.03);
}

.media-card__play {
  position: absolute;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
  width: 48px;
  height: 48px;
  background: rgba(0, 114, 178, 0.9);
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  color: white;
  opacity: 0.9;
  transition: opacity var(--raw-transition-fast), transform var(--raw-transition-fast);
}

.media-card:hover .media-card__play {
  opacity: 1;
  transform: translate(-50%, -50%) scale(1.1);
}

.media-card__play svg {
  width: 20px;
  height: 20px;
  margin-left: 2px;
}

.media-card__content {
  padding: var(--raw-space-5) var(--raw-space-6);
}

.media-card__type {
  font-family: var(--font-ui);
  font-size: var(--raw-text-2xs);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-brand);
  margin-bottom: var(--raw-space-2);
}

.media-card__title {
  font-family: var(--font-heading);
  font-size: var(--raw-text-base);
  font-weight: 600;
  color: var(--color-text-heading);
  margin-bottom: var(--raw-space-2);
  line-height: var(--line-height-tight);
}

.media-card__source {
  font-family: var(--font-ui);
  font-size: var(--raw-text-xs);
  color: var(--color-text-caption);
}


/* ============================================================
   FAQ ACCORDION
   ============================================================ */
.faq-item {
  border-bottom: 1px solid var(--faq-border);
}

.faq-item:first-child {
  border-top: 1px solid var(--faq-border);
}

.faq-question {
  width: 100%;
  display: flex;
  justify-content: space-between;
  align-items: center;
  padding: var(--faq-padding);
  font-family: var(--font-heading);
  font-size: var(--raw-text-base);
  font-weight: 600;
  color: var(--color-text-heading);
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  gap: var(--raw-space-4);
  transition: color var(--raw-transition-fast);
}

.faq-question:hover {
  color: var(--color-brand);
}

.faq-question::after {
  content: "";
  width: 10px;
  height: 10px;
  border-right: 2px solid currentColor;
  border-bottom: 2px solid currentColor;
  transform: rotate(45deg);
  flex-shrink: 0;
  transition: transform var(--raw-transition-fast);
}

.faq-question[aria-expanded="true"]::after {
  transform: rotate(-135deg);
}

.faq-answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--raw-transition-base);
}

.faq-answer__inner {
  padding: 0 var(--raw-space-6) var(--raw-space-6);
  color: var(--color-text-secondary);
  font-size: var(--raw-text-md);
  line-height: var(--line-height-body);
}

.faq-answer__inner p {
  max-width: none;
}


/* ============================================================
   CONTACT SECTION
   ============================================================ */
.contact-form {
  max-width: 600px;
}

.form-group {
  margin-bottom: var(--raw-space-5);
}

.form-group label {
  display: block;
  font-family: var(--font-ui);
  font-size: var(--raw-text-sm);
  font-weight: 600;
  color: var(--color-text-heading);
  margin-bottom: var(--raw-space-2);
}

.form-group input,
.form-group textarea {
  width: 100%;
  padding: var(--raw-space-3) var(--raw-space-4);
  font-family: var(--font-body);
  font-size: var(--raw-text-base);
  color: var(--color-text-body);
  background: var(--color-surface-page);
  border: 1px solid var(--color-surface-rule);
  border-radius: var(--raw-radius-md);
  transition: border-color var(--raw-transition-fast), box-shadow var(--raw-transition-fast);
}

.form-group input:focus,
.form-group textarea:focus {
  outline: none;
  border-color: var(--color-brand);
  box-shadow: 0 0 0 3px rgba(0, 114, 178, 0.15);
}

.form-group textarea {
  min-height: 120px;
  resize: vertical;
}

.form-message {
  padding: var(--raw-space-4);
  border-radius: var(--raw-radius-md);
  font-family: var(--font-ui);
  font-size: var(--raw-text-sm);
  margin-top: var(--raw-space-4);
  display: none;
}

.form-message--success {
  background: var(--raw-teal-light);
  color: var(--raw-teal-dark);
  display: block;
}

.form-message--error {
  background: var(--raw-vermilion-light);
  color: var(--raw-vermilion-dark);
  display: block;
}


/* ============================================================
   SITE FOOTER
   ============================================================ */
.site-footer {
  background: var(--footer-bg);
  color: var(--footer-text);
  padding: var(--raw-space-16) 0 var(--raw-space-8);
}

.footer-grid {
  display: grid;
  grid-template-columns: 2fr 1fr 1fr 1fr;
  gap: var(--raw-space-8);
  margin-bottom: var(--raw-space-12);
}

.footer-brand .site-logo {
  color: var(--raw-white);
  font-size: var(--raw-text-xl);
  margin-bottom: var(--raw-space-4);
  display: inline-block;
}

.footer-attribution {
  font-size: var(--raw-text-sm);
  color: var(--footer-text);
  margin-bottom: var(--raw-space-6);
  max-width: 30ch;
}

.footer-social {
  display: flex;
  gap: var(--raw-space-3);
}

.footer-social a {
  width: 44px;
  height: 44px;
  display: flex;
  align-items: center;
  justify-content: center;
  background: rgba(255,255,255,0.1);
  border-radius: 50%;
  color: var(--footer-text);
  text-decoration: none;
  transition: all var(--raw-transition-fast);
}

.footer-social a:hover {
  background: var(--color-brand);
  color: var(--raw-white);
}

.footer-social svg {
  width: 16px;
  height: 16px;
}

.footer-nav h4 {
  font-family: var(--font-heading);
  font-size: var(--raw-text-sm);
  font-weight: 700;
  color: var(--footer-heading);
  margin-bottom: var(--raw-space-4);
  text-transform: uppercase;
  letter-spacing: 0.06em;
}

.footer-nav ul {
  list-style: none;
  padding: 0;
  margin: 0;
}

.footer-nav li {
  margin-bottom: var(--raw-space-2);
  padding: 0;
}

.footer-nav a {
  font-family: var(--font-ui);
  font-size: var(--raw-text-sm);
  color: var(--footer-text);
  text-decoration: none;
  transition: color var(--raw-transition-fast);
  display: inline-block;
  padding: var(--raw-space-1) 0;
}

.footer-nav a:hover {
  color: var(--footer-link-hover);
}

.footer-legal {
  display: flex;
  align-items: center;
  gap: var(--raw-space-6);
  padding-top: var(--raw-space-6);
  border-top: 1px solid rgba(255,255,255,0.1);
  font-size: var(--raw-text-xs);
  flex-wrap: wrap;
}

.footer-legal a {
  color: var(--footer-text);
  text-decoration: none;
  transition: color var(--raw-transition-fast);
}

.footer-legal a:hover {
  color: var(--footer-link-hover);
}

.footer-legal p {
  margin: 0;
  color: var(--color-text-muted);
}

@media (max-width: 768px) {
  .footer-grid {
    grid-template-columns: 1fr 1fr;
  }

  .footer-brand {
    grid-column: 1 / -1;
  }

  .footer-legal {
    flex-direction: column;
    align-items: flex-start;
    gap: var(--raw-space-3);
  }
}

@media (max-width: 480px) {
  .footer-grid {
    grid-template-columns: 1fr;
  }
}


/* ============================================================
   NUMBERED STEPS (from BMDNA design system)
   ============================================================ */
.steps {
  margin: var(--raw-space-8) 0;
  padding: 0;
  list-style: none;
}

.step {
  display: flex;
  gap: var(--raw-space-5);
  margin-bottom: var(--raw-space-8);
}

.step-number {
  flex-shrink: 0;
  width: 2.5rem;
  height: 2.5rem;
  display: flex;
  align-items: center;
  justify-content: center;
  background: var(--color-brand);
  color: var(--color-text-inverse);
  font-family: var(--font-heading);
  font-weight: 700;
  font-size: var(--raw-text-base);
  border-radius: 50%;
  box-shadow: 0 2px 8px rgba(0, 114, 178, 0.25);
}

.step-content {
  flex: 1;
  padding-top: var(--raw-space-1);
}

.step-title {
  font-family: var(--font-heading);
  font-weight: 600;
  color: var(--color-text-heading);
  margin-bottom: var(--raw-space-1);
}

.step-body {
  font-size: var(--raw-text-md);
  color: var(--color-text-secondary);
}


/* ============================================================
   CTA SECTION
   ============================================================ */
.cta-section {
  text-align: center;
  padding: var(--raw-space-16) 0;
  background: linear-gradient(135deg, var(--raw-blue-light) 0%, var(--color-surface-warm) 100%);
}

.cta-section h2 {
  margin-bottom: var(--raw-space-4);
}

.cta-section p {
  margin-left: auto;
  margin-right: auto;
  margin-bottom: var(--raw-space-8);
  color: var(--color-text-secondary);
}

@media (max-width: 768px) {
  .cta-section {
    padding: var(--raw-space-12) 0;
  }
}


/* ============================================================
   MOBILE REFINEMENTS
   ============================================================ */
@media (max-width: 480px) {
  .card {
    padding: var(--raw-space-5);
  }

  .testimonial {
    padding: var(--raw-space-5);
  }

  .quick-answer {
    padding: var(--raw-space-5) var(--raw-space-5);
  }
}