/* ==========  1. Custom Properties  ========== */
:root {
  --color-bg: #FAF8F5;
  --color-surface: #FFFFFF;
  --color-text: #1A1A1A;
  --color-text-muted: #5C5C5C;
  --color-accent: #1c636d;
  --color-accent-light: #258490;
  --color-accent-bg: #E6F2F4;
  --color-border: #E2DDD8;
  --color-highlight: #D4A853;

  --font-heading: 'DM Serif Display', Georgia, serif;
  --font-body: 'Inter', system-ui, -apple-system, sans-serif;

  --font-size-hero: clamp(2.5rem, 5vw, 4rem);
  --font-size-h2: clamp(1.75rem, 3vw, 2.5rem);
  --font-size-h3: clamp(1.15rem, 2vw, 1.35rem);
  --font-size-body: clamp(1rem, 1.2vw, 1.125rem);
  --font-size-small: 0.875rem;

  --header-height: 72px;
  --section-padding: clamp(4rem, 8vw, 7rem);
  --container-max: 1120px;
  --radius: 12px;
  --radius-sm: 8px;

  --shadow-sm: 0 1px 3px rgba(0,0,0,0.06);
  --shadow-md: 0 4px 20px rgba(0,0,0,0.08);
  --shadow-lg: 0 8px 30px rgba(0,0,0,0.12);

  --z-header: 100;
  --z-overlay: 90;
}

/* ==========  2. Reset / Base  ========== */
*,
*::before,
*::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  scroll-behavior: smooth;
  scroll-padding-top: var(--header-height);
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  line-height: 1.7;
  color: var(--color-text);
  background-color: var(--color-bg);
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color 0.2s ease;
}

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

ul {
  list-style: none;
}

/* ==========  3. Typography  ========== */
h1, h2, h3 {
  font-family: var(--font-heading);
  font-weight: 400;
  line-height: 1.2;
  color: var(--color-text);
}

.section-title {
  font-size: var(--font-size-h2);
  text-align: center;
  margin-bottom: 3rem;
}

/* ==========  4. Layout Utilities  ========== */
.container {
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: clamp(1rem, 4vw, 2rem);
}

/* ==========  5. Components  ========== */

/* 5.1 Buttons */
.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.875rem 2rem;
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  font-weight: 500;
  border-radius: var(--radius-sm);
  border: 2px solid transparent;
  cursor: pointer;
  transition: all 0.25s ease;
  text-decoration: none;
  min-height: 48px;
}

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

.btn--primary:hover {
  background-color: var(--color-accent-light);
  border-color: var(--color-accent-light);
  color: #fff;
  transform: translateY(-2px);
  box-shadow: var(--shadow-md);
}

.btn--outline-light {
  background-color: transparent;
  color: #fff;
  border-color: rgba(255,255,255,0.5);
}

.btn--outline-light:hover {
  background-color: #fff;
  color: var(--color-accent);
  border-color: #fff;
  transform: translateY(-2px);
}

/* ==========  6. Header / Nav  ========== */
.skip-nav {
  position: absolute;
  top: -100%;
  left: 1rem;
  padding: 0.75rem 1.5rem;
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius-sm);
  z-index: 1000;
  font-weight: 500;
}

.skip-nav:focus {
  top: 0.5rem;
  color: #fff;
}

.site-header {
  position: sticky;
  top: 0;
  z-index: var(--z-header);
  background-color: var(--color-bg);
  transition: box-shadow 0.3s ease;
  will-change: box-shadow;
}

.site-header--scrolled {
  box-shadow: var(--shadow-sm);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: var(--header-height);
}

.nav__logo {
  display: inline-flex;
  align-items: center;
  gap: 0.6rem;
  text-decoration: none;
  color: var(--color-text);
}

.nav__logo-mark {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 36px;
  height: 36px;
  border-radius: 8px;
  background-color: var(--color-accent);
  color: #fff;
  font-family: var(--font-heading);
  font-size: 1.15rem;
  letter-spacing: 0.04em;
  line-height: 1;
  flex-shrink: 0;
  transition: background-color 0.25s ease, transform 0.25s ease;
}

.nav__logo-text {
  font-family: var(--font-heading);
  font-size: 1.4rem;
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
  transition: color 0.2s ease;
}

.nav__logo:hover .nav__logo-mark {
  background-color: var(--color-accent-light);
  transform: rotate(-3deg) scale(1.05);
}

.nav__logo:hover .nav__logo-text {
  color: var(--color-accent);
}

.nav__toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 0.5rem;
  width: 44px;
  height: 44px;
  align-items: center;
  justify-content: center;
}

.nav__hamburger,
.nav__hamburger::before,
.nav__hamburger::after {
  display: block;
  width: 24px;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: all 0.3s ease;
}

.nav__hamburger {
  position: relative;
}

.nav__hamburger::before,
.nav__hamburger::after {
  content: '';
  position: absolute;
  left: 0;
}

.nav__hamburger::before {
  top: -7px;
}

.nav__hamburger::after {
  top: 7px;
}

/* Hamburger open state */
.nav__toggle[aria-expanded="true"] .nav__hamburger {
  background-color: transparent;
}

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

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

.nav__list {
  display: flex;
  align-items: center;
  gap: 2rem;
}

.nav__link {
  color: var(--color-text-muted);
  font-size: var(--font-size-small);
  font-weight: 500;
  text-transform: uppercase;
  letter-spacing: 0.05em;
  padding: 0.25rem 0;
  position: relative;
  text-decoration: none;
}

.nav__link::after {
  content: '';
  position: absolute;
  bottom: -2px;
  left: 0;
  width: 0;
  height: 2px;
  background-color: var(--color-accent);
  transition: width 0.3s ease;
}

.nav__link:hover,
.nav__link--active {
  color: var(--color-accent);
}

.nav__link:hover::after,
.nav__link--active::after {
  width: 100%;
}

/* ==========  7. Hero  ========== */
.hero {
  min-height: 100vh;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: var(--header-height);
  position: relative;
  overflow: hidden;
  /* Subtle repeating cross/plus pattern */
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
  background-size: 40px 40px;
  background-position: -0.5px -0.5px;
}

/* Radial vignette — pattern visible in center, fading at edges */
.hero__bg {
  position: absolute;
  inset: 0;
  pointer-events: none;
  z-index: 0;
  background: radial-gradient(ellipse 75% 65% at 50% 45%, transparent 0%, var(--color-bg) 60%);
}

.hero__container {
  padding-block: 4rem;
  position: relative;
  z-index: 1;
}

.hero__photo {
  width: 140px;
  height: 140px;
  border-radius: 50%;
  object-fit: cover;
  margin-inline: auto;
  margin-bottom: 1.5rem;
  border: 4px solid var(--color-surface);
  box-shadow: var(--shadow-md);
  animation: fadeInUp 0.8s ease both;
}

.hero__subtitle {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--color-text-muted);
  margin-bottom: 1rem;
  max-width: 500px;
  margin-inline: auto;
  animation: fadeInUp 0.8s ease 0.15s both;
}

.hero__title {
  font-size: var(--font-size-hero);
  line-height: 1.15;
  margin-bottom: 1.5rem;
}

.hero__title-line {
  display: block;
}

.hero__rotating {
  display: block;
  position: relative;
  height: 1.3em;
  color: var(--color-accent);
}

/* Typed text + blinking cursor */
.hero__typed {
  display: inline;
}

.hero__cursor {
  display: inline-block;
  width: 3px;
  height: 1.1em;
  background-color: var(--color-accent);
  margin-left: 2px;
  vertical-align: text-bottom;
  animation: blinkCaret 0.7s step-end infinite;
}

.hero__cursor--hidden {
  opacity: 0;
  animation: none;
}

@keyframes blinkCaret {
  0%, 100% { opacity: 1; }
  50% { opacity: 0; }
}

/* Screen reader only */
.sr-only {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border: 0;
}

.hero__subtitle {
  font-size: clamp(1.1rem, 2vw, 1.35rem);
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  max-width: 500px;
  margin-inline: auto;
}

.hero__cta {
  font-size: 1.05rem;
}

/* Hero entrance animations */
.hero__title {
  animation: fadeInUp 0.8s ease 0.25s both;
}

.hero__cta {
  animation: fadeInUp 0.8s ease 0.45s both;
}

@keyframes fadeInUp {
  from {
    opacity: 0;
    transform: translateY(24px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

/* ==========  8. Services  ========== */
.services {
  padding-block: var(--section-padding);
  background-color: var(--color-bg);
}

.services__grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
}

/* Pilíře — výrazné karty */
.services__pillars {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 1.5rem;
  margin-bottom: 2.5rem;
}

.pillar-card {
  background: var(--color-accent);
  color: #fff;
  border-radius: var(--radius);
  padding: 2rem 2.25rem;
  text-align: center;
}

.pillar-card__icon {
  margin-bottom: 1rem;
}

.pillar-card__icon svg {
  stroke: #fff;
  opacity: 0.8;
}

.pillar-card__title {
  font-family: var(--font-heading);
  font-size: var(--font-size-h3);
  margin-bottom: 0.75rem;
  color: #fff;
}

.pillar-card__desc {
  font-size: var(--font-size-small);
  line-height: 1.6;
  opacity: 0.9;
}

.services__group-label {
  grid-column: 1 / -1;
  font-family: var(--font-heading);
  font-size: var(--font-size-h2);
  color: var(--color-text);
  margin-top: 0;
  margin-bottom: 1rem;
  text-align: center;
}

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

.service-card {
  background-color: var(--color-surface);
  border-radius: var(--radius);
  padding: 2rem;
  border: 1px solid var(--color-border);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.service-card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.service-card__icon {
  color: var(--color-accent);
  margin-bottom: 1rem;
  width: 48px;
  height: 48px;
}

.service-card__title {
  font-size: var(--font-size-h3);
  margin-bottom: 0.75rem;
}

.service-card__desc {
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* ==========  9. AI Section  ========== */
.ai-section {
  padding-block: var(--section-padding);
  background-color: var(--color-bg);
}

.ai-section__grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(280px, 1fr));
  gap: 2rem;
}

.ai-card {
  position: relative;
  padding: 2rem;
  background-color: var(--color-surface);
  border-radius: var(--radius);
  overflow: hidden;
}

.ai-card__number {
  position: absolute;
  top: -0.25rem;
  right: 1rem;
  font-family: var(--font-heading);
  font-size: 5rem;
  line-height: 1;
  color: var(--color-accent);
  opacity: 0.08;
  pointer-events: none;
}

.ai-card__title {
  font-size: var(--font-size-h3);
  margin-bottom: 0.75rem;
  position: relative;
}

.ai-card__text {
  color: var(--color-text-muted);
  line-height: 1.6;
  position: relative;
}

/* ==========  10. References  ========== */
/* Section header utility — centers pill + title */
.section-header {
  display: flex;
  flex-direction: column;
  align-items: center;
}

/* ==========  USP Numbers  ========== */
.usp {
  padding-block: clamp(3rem, 6vw, 5rem);
  background-color: var(--color-surface);
  border-top: 1px solid var(--color-border);
  border-bottom: 1px solid var(--color-border);
}

.usp__grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 2rem;
  text-align: center;
}

.usp__item {
  padding: 1.5rem 1rem;
}

.usp__icon {
  display: flex;
  align-items: center;
  justify-content: center;
  width: 56px;
  height: 56px;
  border-radius: 50%;
  background-color: var(--color-accent-bg);
  color: var(--color-accent);
  margin-inline: auto;
  margin-bottom: 1rem;
}

.usp__number {
  display: block;
  font-family: var(--font-heading);
  font-size: clamp(2rem, 4vw, 2.75rem);
  line-height: 1.1;
  color: var(--color-accent);
  margin-bottom: 0.25rem;
}

.usp__label {
  display: block;
  font-weight: 600;
  margin-bottom: 0.5rem;
  text-transform: uppercase;
  letter-spacing: 0.04em;
  font-size: var(--font-size-small);
  color: var(--color-text);
}

.usp__desc {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  line-height: 1.5;
}

/* ==========  About  ========== */
.about {
  padding-block: var(--section-padding);
  background-color: var(--color-accent-bg);
}

.about__items {
  max-width: 740px;
  margin-inline: auto;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.about__item {
  display: flex;
  gap: 1.25rem;
  align-items: flex-start;
  background: var(--color-surface);
  border-radius: var(--radius);
  padding: 1.5rem 1.75rem;
  border: 1px solid var(--color-border);
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.about__item:hover {
  transform: translateX(4px);
  box-shadow: var(--shadow-sm);
}

.about__item-num {
  font-family: var(--font-heading);
  font-size: 1.5rem;
  color: var(--color-accent);
  opacity: 0.3;
  flex-shrink: 0;
  line-height: 1.5;
}

.about__item-body {
  flex: 1;
}

.about__item-title {
  font-family: var(--font-heading);
  font-size: 1.25rem;
  font-weight: 400;
  line-height: 1.3;
  color: var(--color-text);
  margin-bottom: 0.35rem;
}

.about__item p {
  color: var(--color-text-muted);
  line-height: 1.7;
}

.about__item strong {
  color: var(--color-accent);
  font-weight: 600;
}

/* ==========  Pricing  ========== */
.pricing {
  padding-block: var(--section-padding);
  background-color: var(--color-accent-bg);
}

.pricing__intro {
  text-align: center;
  color: var(--color-text-muted);
  max-width: 560px;
  margin-inline: auto;
  margin-bottom: 2.5rem;
}

.pricing__grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1.5rem;
  max-width: 700px;
  margin-inline: auto;
}

.pricing__card {
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  padding: 2.5rem 2rem;
  text-align: center;
  transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.pricing__card:hover {
  transform: translateY(-4px);
  box-shadow: var(--shadow-md);
}

.pricing__card--preferred {
  border-color: var(--color-accent);
  border-width: 2px;
  position: relative;
}

.pricing__badge {
  position: absolute;
  top: -0.75rem;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-accent);
  color: #fff;
  font-size: 0.75rem;
  font-weight: 600;
  letter-spacing: 0.04em;
  padding: 0.3rem 1rem;
  border-radius: 2rem;
  white-space: nowrap;
}

.pricing__card-title {
  font-size: var(--font-size-h3);
  margin-bottom: 1rem;
}

.pricing__price {
  font-family: var(--font-heading);
  font-size: clamp(1.75rem, 3vw, 2.25rem);
  color: var(--color-accent);
  margin-bottom: 1.25rem;
}

.pricing__unit {
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  color: var(--color-text-muted);
}

.pricing__perks {
  list-style: none;
  text-align: left;
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
}

.pricing__perks li {
  padding: 0.4rem 0;
  padding-left: 1.5rem;
  position: relative;
}

.pricing__perks li::before {
  content: '';
  position: absolute;
  left: 0;
  top: 0.75rem;
  width: 8px;
  height: 8px;
  border-radius: 50%;
  background-color: var(--color-accent-bg);
  border: 2px solid var(--color-accent);
}

/* ==========  Carousel  ========== */
.carousel {
  position: relative;
  overflow: hidden;
  padding-block: 0 2rem;
  max-width: var(--container-max);
  margin-inline: auto;
}

.carousel__track {
  display: flex;
  transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94);
  will-change: transform;
  cursor: grab;
}

.carousel__track.is-dragging {
  transition: none;
  cursor: grabbing;
}

.carousel__slide {
  flex: 0 0 60%;
  margin: 0 1%;
  opacity: 0.35;
  transform: scale(0.9);
  filter: blur(1px);
  transition: opacity 0.5s ease, transform 0.5s ease, filter 0.5s ease;
  pointer-events: none;
}

.carousel__slide.is-active {
  opacity: 1;
  transform: scale(1);
  filter: blur(0);
  pointer-events: auto;
}

.carousel__controls {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 1rem;
  margin-top: 1.5rem;
}

.carousel__btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 44px;
  height: 44px;
  border-radius: 50%;
  border: 1px solid var(--color-border);
  background: var(--color-surface);
  color: var(--color-text);
  cursor: pointer;
  transition: all 0.25s ease;
}

.carousel__btn:hover {
  background-color: var(--color-accent);
  color: #fff;
  border-color: var(--color-accent);
  transform: scale(1.05);
}

.carousel__btn:disabled {
  opacity: 0.3;
  cursor: default;
  transform: none;
}

.carousel__dots {
  display: flex;
  gap: 0.5rem;
}

.carousel__dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  border: 2px solid var(--color-border);
  background: transparent;
  cursor: pointer;
  padding: 0;
  transition: all 0.25s ease;
}

.carousel__dot.is-active {
  background-color: var(--color-accent);
  border-color: var(--color-accent);
  transform: scale(1.2);
}

.carousel__dot:hover:not(.is-active) {
  border-color: var(--color-accent);
}

/* ==========  10. References  ========== */
.section-label {
  text-align: center;
  font-size: var(--font-size-small);
  font-weight: 600;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: #fff;
  background-color: var(--color-accent);
  display: inline-block;
  padding: 0.35rem 1rem;
  border-radius: 2rem;
  margin-bottom: 0.75rem;
  width: fit-content;
  margin-inline: auto;
}

.references {
  padding-block: var(--section-padding);
  background-color: var(--color-bg);
}

/* .references__grid removed — replaced by carousel */

.ref-card {
  background-color: var(--color-surface);
  border-radius: var(--radius);
  padding: 2rem;
  border: 1px solid var(--color-border);
  position: relative;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.ref-card__header {
  display: flex;
  align-items: center;
  gap: 1rem;
}

.ref-card__avatar {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  object-fit: cover;
  object-position: top center;
  flex-shrink: 0;
  border: 2px solid var(--color-border);
}

.ref-card__name {
  font-family: var(--font-heading);
  font-size: 1.05rem;
  font-weight: 400;
  color: var(--color-text);
  margin-bottom: 0.15rem;
}

.ref-card__role {
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
}

.ref-card__text {
  font-style: italic;
  line-height: 1.7;
  color: var(--color-text-muted);
  position: relative;
}

/* ==========  11. Capacity Banner  ========== */
.capacity-banner {
  background-color: var(--color-accent);
  color: #fff;
  padding-block: 3rem;
}

.capacity-banner__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 2rem;
  flex-wrap: wrap;
}

.capacity-banner__text {
  font-size: clamp(1rem, 1.5vw, 1.15rem);
  max-width: 600px;
  line-height: 1.6;
}

.capacity-banner__text strong {
  display: block;
  font-size: clamp(1.15rem, 2vw, 1.35rem);
  margin-bottom: 0.25rem;
}

/* ==========  12. Contact  ========== */
.contact {
  padding-block: var(--section-padding);
  text-align: center;
  background-color: var(--color-bg);
}

.contact__text {
  color: var(--color-text-muted);
  margin-bottom: 2.5rem;
  font-size: clamp(1.05rem, 1.5vw, 1.2rem);
}

.contact__alt {
  margin-top: 2rem;
  color: var(--color-text-muted);
  font-size: var(--font-size-small);
}

.contact__social {
  display: flex;
  justify-content: center;
  gap: 1rem;
  margin-top: 2rem;
}

/* Contact Form */
.contact-form {
  max-width: 560px;
  margin-inline: auto;
  text-align: left;
}

.contact-form__hp {
  position: absolute;
  left: -9999px;
  width: 1px;
  height: 1px;
  overflow: hidden;
}

.contact-form__group {
  margin-bottom: 1.25rem;
}

.contact-form__label {
  display: block;
  font-size: var(--font-size-small);
  font-weight: 500;
  margin-bottom: 0.4rem;
  color: var(--color-text);
}

.contact-form__label span {
  color: var(--color-accent);
}

.contact-form__input {
  width: 100%;
  padding: 0.75rem 1rem;
  font-family: var(--font-body);
  font-size: var(--font-size-body);
  color: var(--color-text);
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}

.contact-form__input::placeholder {
  color: #999;
}

.contact-form__input:focus {
  outline: none;
  border-color: var(--color-accent);
  box-shadow: 0 0 0 3px rgba(28, 99, 109, 0.12);
}

.contact-form__input:invalid:not(:placeholder-shown) {
  border-color: #c0392b;
}

.contact-form__textarea {
  resize: vertical;
  min-height: 120px;
}

.contact-form__submit {
  width: 100%;
  margin-top: 0.5rem;
}

.contact-form__status {
  margin-top: 1rem;
  padding: 0.75rem 1rem;
  border-radius: var(--radius-sm);
  font-size: var(--font-size-small);
  text-align: center;
  display: none;
}

.contact-form__status--error {
  display: block;
  background-color: #fdecea;
  color: #c0392b;
}

/* Success confirmation panel */
.contact-form__success {
  display: none;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding: 3rem 2rem;
  max-width: 560px;
  margin-inline: auto;
  animation: fadeInUp 0.5s ease both;
}

.contact-form__success.is-visible {
  display: flex;
}

.contact-form__success-icon {
  width: 72px;
  height: 72px;
  border-radius: 50%;
  background-color: var(--color-accent);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  margin-bottom: 1.5rem;
  animation: popIn 0.4s ease 0.2s both;
}

@keyframes popIn {
  0% { transform: scale(0); opacity: 0; }
  70% { transform: scale(1.15); }
  100% { transform: scale(1); opacity: 1; }
}

.contact-form__success-title {
  font-family: var(--font-heading);
  font-size: var(--font-size-h3);
  margin-bottom: 0.75rem;
  color: var(--color-text);
}

.contact-form__success-text {
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1.5rem;
}

.contact-form__success-btn {
  font-size: var(--font-size-small);
  color: var(--color-accent);
  background: none;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 500;
  text-decoration: underline;
  text-underline-offset: 3px;
  transition: color 0.2s ease;
}

.contact-form__success-btn:hover {
  color: var(--color-accent-light);
}

.contact__social-link {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background-color: var(--color-accent-bg);
  color: var(--color-accent);
  transition: all 0.25s ease;
}

.contact__social-link:hover {
  background-color: var(--color-accent);
  color: #fff;
  transform: translateY(-2px);
}

/* ==========  Dark Mode Toggle  ========== */
.dark-toggle {
  cursor: pointer;
  position: fixed;
  bottom: 1.25rem;
  right: 1.25rem;
  z-index: var(--z-header);
  display: flex;
  align-items: center;
  gap: 0.6rem;
  background: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: 2rem;
  padding: 0.5rem 0.85rem 0.5rem 1rem;
  box-shadow: var(--shadow-md);
  transition: box-shadow 0.2s ease;
}

.dark-toggle:hover {
  box-shadow: var(--shadow-lg);
}

.dark-toggle__label {
  font-size: 0.75rem;
  color: var(--color-text-muted);
  white-space: nowrap;
  transition: color 0.2s ease;
  max-width: 200px;
}

.dark-toggle:hover .dark-toggle__label {
  color: var(--color-text);
}

.dark-toggle__input {
  position: absolute;
  opacity: 0;
  width: 0;
  height: 0;
}

.dark-toggle__track {
  position: relative;
  display: flex;
  align-items: center;
  justify-content: space-between;
  width: 52px;
  height: 28px;
  background-color: var(--color-border);
  border-radius: 14px;
  padding: 0 7px;
  flex-shrink: 0;
  transition: background-color 0.3s ease;
}

.dark-toggle__icon {
  z-index: 1;
  transition: opacity 0.3s ease;
  flex-shrink: 0;
  color: var(--color-text-muted);
  display: flex;
  align-items: center;
  justify-content: center;
}

.dark-toggle__icon--sun {
  opacity: 1;
}

.dark-toggle__icon--moon {
  opacity: 0.4;
}

.dark-toggle__input:checked ~ .dark-toggle__track .dark-toggle__icon--sun {
  opacity: 0.4;
  color: #fff;
}

.dark-toggle__input:checked ~ .dark-toggle__track .dark-toggle__icon--moon {
  opacity: 1;
  color: #fff;
}

.dark-toggle__thumb {
  position: absolute;
  left: 3px;
  width: 22px;
  height: 22px;
  border-radius: 50%;
  background-color: var(--color-surface);
  box-shadow: 0 1px 3px rgba(0,0,0,0.2);
  transition: transform 0.3s ease;
}

.dark-toggle__input:checked ~ .dark-toggle__track {
  background-color: var(--color-accent);
}

.dark-toggle__input:checked ~ .dark-toggle__track .dark-toggle__thumb {
  transform: translateX(24px);
}

.dark-toggle__input:focus-visible ~ .dark-toggle__track {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
}

/* ==========  Dark Theme  ========== */
.dark {
  --color-bg: #141618;
  --color-surface: #1E2124;
  --color-text: #E8E6E3;
  --color-text-muted: #9CA3AF;
  --color-accent: #3AAFB9;
  --color-accent-light: #5CC8D0;
  --color-accent-bg: rgba(58,175,185,0.1);
  --color-border: #2D3136;
  --color-highlight: #D4A853;
}

.dark .site-header {
  background-color: rgba(20, 22, 24, 0.85);
}

.dark .hero {
  background-image:
    linear-gradient(var(--color-border) 1px, transparent 1px),
    linear-gradient(90deg, var(--color-border) 1px, transparent 1px);
}

.dark .hero__bg {
  background: radial-gradient(ellipse 75% 65% at 50% 45%, transparent 0%, var(--color-bg) 60%);
}

.dark .nav__logo-mark {
  background-color: var(--color-accent);
}

.dark .usp {
  background-color: var(--color-surface);
  border-color: var(--color-border);
}

.dark .capacity-banner {
  background-color: #1a3a3f;
}

.dark .pricing__card--preferred {
  border-color: var(--color-accent);
}

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

@media (max-width: 768px) {
  .dark-toggle__label {
    display: none;
  }

  .dark-toggle {
    padding: 0.5rem;
  }
}

/* ==========  13. Footer  ========== */
.site-footer {
  padding-block: 2rem;
  text-align: center;
  font-size: var(--font-size-small);
  color: var(--color-text-muted);
  border-top: 1px solid var(--color-border);
}

.site-footer__legal {
  font-size: 0.75rem;
  margin-top: 0.4rem;
  opacity: 0.7;
}

/* ==========  14. Responsive  ========== */
@media (max-width: 768px) {
  .site-header {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    width: 100%;
    height: var(--header-height);
    min-height: var(--header-height);
    transform: none !important;
  }

  body {
    padding-top: var(--header-height);
  }

  .hero {
    padding-top: 0;
    min-height: calc(100svh - var(--header-height));
  }

  .hero__container {
    padding-block: 2.5rem;
  }

  .nav__toggle {
    display: flex;
  }

  .nav__list {
    position: fixed;
    top: var(--header-height);
    left: 0;
    right: 0;
    height: calc(100vh - var(--header-height));
    height: calc(100dvh - var(--header-height));
    flex-direction: column;
    justify-content: flex-start;
    padding-top: 2rem;
    gap: 0;
    background-color: var(--color-bg);
    z-index: 999;
    transform: translateX(100%);
    transition: transform 0.35s ease;
    overflow-y: auto;
  }

  .nav__list--open {
    transform: translateX(0);
  }

  .nav__link {
    display: block;
    padding: 1rem 2rem;
    font-size: 1rem;
  }

  .nav__link::after {
    display: none;
  }

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

  .ai-section__grid {
    grid-template-columns: 1fr;
  }

  .carousel__slide {
    flex: 0 0 85%;
    margin: 0 1%;
  }

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

  .about__item {
    flex-direction: column;
    gap: 0.5rem;
  }

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

  .capacity-banner__inner {
    flex-direction: column;
    text-align: center;
  }

  .capacity-banner__text {
    max-width: none;
  }
}

@media (min-width: 769px) and (max-width: 1024px) {
  .services__grid {
    grid-template-columns: repeat(2, 1fr);
  }

  /* references already 2-col by default */
}

/* ==========  15. Accessibility  ========== */
:focus-visible {
  outline: 3px solid var(--color-accent);
  outline-offset: 3px;
  border-radius: 2px;
}

@media (prefers-reduced-motion: reduce) {
  *,
  *::before,
  *::after {
    animation-duration: 0.01ms !important;
    animation-iteration-count: 1 !important;
    transition-duration: 0.01ms !important;
    scroll-behavior: auto !important;
  }
}

/* Scroll-triggered animations */
.animate-on-scroll {
  opacity: 0;
  transform: translateY(20px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.animate-on-scroll.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* ==========  15b. Client Logos  ========== */
.client-logos {
  padding-top: 0;
  padding-bottom: clamp(2.5rem, 5vw, 4rem);
  background: var(--color-bg);
}

.client-logos__grid {
  display: grid;
  grid-template-columns: repeat(5, minmax(0, 1fr));
  gap: 1rem;
  max-width: 960px;
  margin-inline: auto;
}

.client-logos__cell {
  display: flex;
  align-items: center;
  justify-content: center;
  min-width: 0;
  aspect-ratio: 3 / 2;
  padding: 1rem;
  background-color: var(--color-surface);
  border: 1px solid var(--color-border);
  border-radius: var(--radius-sm);
  transition: border-color 0.25s ease, transform 0.25s ease;
}

@media (hover: hover) {
  .client-logos__cell:hover {
    border-color: var(--color-accent);
    transform: translateY(-2px);
  }

  .client-logos__cell:hover img {
    filter: grayscale(0%);
    opacity: 1;
  }
}

.client-logos__cell img {
  width: 100%;
  height: 100%;
  object-fit: contain;
  filter: grayscale(100%);
  opacity: 0.8;
  transition: opacity 0.25s ease, filter 0.25s ease;
}

/* Zmenšit loga, která by jinak dominovala — kruhová a objemná */
.client-logos__cell--square img {
  transform: scale(0.85);
}

.client-logos__cell--cornilleau img,
.client-logos__cell--fitbau img {
  transform: scale(0.9);
}

/* Jemné zvětšení log, která vypadají malá kvůli vnitřnímu whitespace */
.client-logos__cell--dentess img {
  transform: scale(1.05);
}

@media (max-width: 900px) {
  .client-logos__grid {
    grid-template-columns: repeat(4, minmax(0, 1fr));
  }
}

@media (max-width: 640px) {
  .client-logos__grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 0.75rem;
    max-width: 100%;
  }

  .client-logos__cell {
    padding: 1.25rem 1.5rem;
    aspect-ratio: 16 / 9;
  }
}

/* ==========  16. Print  ========== */
@media print {
  .site-header,
  .nav__toggle,
  .skip-nav,
  .capacity-banner .btn,
  .hero__cta,
  .contact__social {
    display: none;
  }

  body {
    font-size: 12pt;
    color: #000;
    background: #fff;
  }

  .hero {
    min-height: auto;
    padding-block: 2rem;
  }

  .service-card,
  .ai-card,
  .ref-card {
    break-inside: avoid;
    border: 1px solid #ccc;
  }
}