:root {
  --ink: #1c1c30;
  --ink-70: rgb(28 28 48 / 68%);
  --ink-50: rgb(28 28 48 / 50%);
  --accent: #e73a1d;
  --accent-dark: #721927;
  --accent-tint: #ffefeb;
  --accent-tint-2: #fff6f3;
  --bg: #fff;
  --soft: #f6f5f3;
  --soft-2: #efeee9;
  --line: #e6e2dc;
  --white: #fff;
  --radius: 18px;
  --radius-sm: 10px;
  --max: 1180px;
  --shadow: 0 20px 60px -30px rgb(28 28 48 / 25%);
}

* {
  box-sizing: border-box;
}

html {
  scroll-behavior: smooth;
  overflow-x: clip;
}

@media (prefers-reduced-motion: reduce) {
  html {
    scroll-behavior: auto;
  }

  * {
    animation-duration: 0.001ms !important; /* stylelint-disable-line declaration-no-important */
    animation-iteration-count: 1 !important; /* stylelint-disable-line declaration-no-important */
    transition-duration: 0.001ms !important; /* stylelint-disable-line declaration-no-important */
  }
}

body {
  margin: 0;
  overflow-x: clip;
  background: var(--bg);
  color: var(--ink);
  font-family: Inter, system-ui, sans-serif;
  font-size: 16px;
  line-height: 1.55;
  -webkit-font-smoothing: antialiased; /* stylelint-disable-line property-no-vendor-prefix */
}

h1,
h2,
h3 {
  font-family: 'Space Grotesk',sans-serif;
  color: var(--ink);
  margin: 0 0 0.5em;
  letter-spacing: -0.01em;
  line-height: 1.12;
}

p {
  margin: 0 0 1em;
}

a {
  color: inherit;
}

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

.wrap {
  max-width: var(--max);
  margin: 0 auto;
  padding: 0 24px;
}

.eyebrow {
  font-family: 'IBM Plex Mono',monospace;
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--accent);
  font-weight: 600;
  display: inline-flex;
  align-items: center;
  gap: 0.6em;
}

.eyebrow::before {
  content: "";
  width: 18px;
  height: 1.5px;
  background: var(--accent);
  display: inline-block;
}

section {
  padding: 88px 0;
}

#o-konferenci,
#recnici,
#program,
#registrace,
#partneri,
#faq,
#kontakt,
#uvod {
  scroll-margin-top: 74px;
}

@media (width <= 720px) {
  section {
    padding: 60px 0;
  }
}

.btn {
  display: inline-flex;
  position: relative;
  align-items: center;
  justify-content: center;
  gap: 0.5em;
  padding: 0.975rem 2.9rem 0.975rem 1.35rem;
  border: none;
  border-radius: 0;
  box-shadow: 0 12px 28px rgb(28 28 48 / 12%);
  font-family: Outfit, sans-serif;
  font-size: clamp(1rem, 0.5vw + 0.8rem, 1.25rem);
  font-weight: 600;
  line-height: 1;
  text-align: center;
  text-decoration: none;
  white-space: nowrap;
  cursor: pointer;
  transition: transform 0.25s ease, box-shadow 0.25s ease, background-color 0.25s ease, background-position 0.25s ease, filter 0.25s ease, border-color 0.25s ease, color 0.25s ease;
}

.btn:focus-visible {
  outline: 0.1875rem solid rgb(255 121 29 / 65%);
  outline-offset: 0.1875rem;
}

.btn::after {
  content: "";
  position: absolute;
  top: 50%;
  right: 0.9em;
  width: 1.05em;
  height: 1.05em;
  transform: translate(0, -50%);
  transition: transform 0.25s ease;
  background: center/contain no-repeat;
}

.btn-primary::after {
  background-image: url('https://aivkostce.cz/themes/custom/webai/images/button-tick.svg');
}

.btn:hover::after,
.btn:focus-visible::after {
  transform: translate(3px, -50%);
}

/* stylelint-disable-next-line no-descending-specificity -- .btn-primary and .btn-primary::after target different things (element vs pseudo-element) */
.btn-primary {
  color: var(--white);
  background-color: var(--accent);
  background-image: linear-gradient(281deg, #ff791d 7.03%, #e73a1d 25.27%, #e61f23 36.8%, #c8001c 54.62%, #721927 82.68%, #451923 95.99%);
  background-position: 0 50%;
  background-size: 220% 100%;
}

.btn-primary:hover,
.btn-primary:focus-visible {
  transform: translateY(-0.125rem);
  box-shadow: 0 20px 34px rgb(28 28 48 / 22%);
  filter: saturate(1.08) contrast(1.04);
  background-position: 100% 50%;
  color: var(--white);
}

.btn-primary:active {
  transform: translateY(0.0625rem) scale(0.985);
  box-shadow: 0 8px 18px rgb(28 28 48 / 18%);
}

.btn-nav {
  padding: 0.85rem 2.7rem 0.85rem 1rem;
  font-size: clamp(0.88rem, 0.4vw + 0.72rem, 1.08rem);
  box-shadow: 0 8px 18px rgb(28 28 48 / 10%);
}

.btn-nav-icon {
  display: none;
}

.btn-nav:hover {
  box-shadow: 0 14px 24px rgb(28 28 48 / 18%);
}

header {
  position: sticky;
  top: 0;
  z-index: 50;
  background: rgb(255 255 255 / 90%);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--line);
}

.nav {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 14px 24px;
  max-width: var(--max);
  margin: 0 auto;
}

.nav-logo img {
  height: 26px;
  display: block;
}

.nav-links {
  display: flex;
  gap: 28px;
  list-style: none;
  margin: 0;
  padding: 0;
  font-size: 0.94rem;
  font-weight: 500;
}

.nav-links a {
  text-decoration: none;
  color: var(--ink-70);
  transition: color 0.15s;
}

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

.nav-cta {
  display: flex;
  align-items: center;
  gap: 18px;
}

.nav-toggle {
  display: none;
  background: none;
  border: none;
  cursor: pointer;
  padding: 6px;
}

.nav-toggle svg {
  display: block;
}

@media (width <= 860px) {
  .nav-links {
    position: fixed;
    inset: 64px 16px auto;
    background: var(--white);
    border: 1px solid var(--line);
    border-radius: var(--radius);
    flex-direction: column;
    padding: 18px 22px;
    box-shadow: var(--shadow);
    transform: translateY(-12px);
    opacity: 0;
    pointer-events: none;
    transition: all 0.2s ease;
  }

  .nav-links.open {
    transform: translateY(0);
    opacity: 1;
    pointer-events: auto;
  }

  .nav-toggle {
    display: block;
  }

  .nav-cta .btn-primary-label-full {
    display: none;
  }

  .nav-cta .btn-nav {
    padding: 0.7rem;
  }

  .nav-cta .btn-nav::after {
    display: none;
  }

  .nav-cta .btn-nav-icon {
    display: inline-flex;
    align-items: center;
    justify-content: center;
  }
}

/* HERO (A) : light opener with blue network */

.hero {
  position: relative;
  overflow: hidden;
  min-height: calc(100svh - 57px);
  display: flex;
  align-items: center;
  padding: 110px 0 96px;
  color: var(--ink);
  background: radial-gradient(1100px 640px at 82% -8%, rgb(47 75 143 / 10%) 0%, rgb(47 75 143 / 0%) 58%), radial-gradient(760px 520px at 8% 108%, rgb(47 75 143 / 8%) 0%, rgb(47 75 143 / 0%) 60%), linear-gradient(180deg, #fff 0%, #f4f6fb 100%);
}

@media (width <= 900px) {
  .hero-grid {
    grid-template-columns: 1fr;
  }
}

.meta-row {
  display: flex;
  flex-wrap: wrap;
  gap: 10px;
  margin: 26px 0 30px;
}

.meta-chip {
  display: flex;
  align-items: center;
  gap: 8px;
  font-family: 'IBM Plex Mono',monospace;
  font-size: 0.85rem;
  font-weight: 600;
  background: var(--white);
  border: 1px solid var(--line);
  padding: 9px 14px;
  border-radius: 999px;
  color: var(--ink);
}

.meta-chip svg {
  flex: none;
}

.hero-actions {
  display: flex;
  align-items: center;
  gap: 18px;
  flex-wrap: wrap;
}

@media (width <= 900px) {
  .stamp {
    right: auto;
    left: 0;
    top: -30px;
  }
}

@media (prefers-reduced-motion: reduce) {
  .stamp-ring {
    animation: none;
  }
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

@keyframes floaty {
  0%,
  100% {
    transform: translateY(0);
  }

  50% {
    transform: translateY(-12px);
  }
}

@keyframes shimmer {
  0% {
    background-position: 0% 50%;
  }

  100% {
    background-position: 200% 50%;
  }
}

.rv {
  opacity: 0;
  transform: translateY(28px);
  transition: opacity 0.75s cubic-bezier(0.16, 0.8, 0.24, 1), transform 0.75s cubic-bezier(0.16, 0.8, 0.24, 1);
}

.rv.in {
  opacity: 1;
  transform: none;
}

@media (prefers-reduced-motion: reduce) {
  .rv {
    opacity: 1 !important; /* stylelint-disable-line declaration-no-important */
    transform: none !important; /* stylelint-disable-line declaration-no-important */
    transition: none !important; /* stylelint-disable-line declaration-no-important */
  }
}

.section-head {
  max-width: 800px;
  margin-bottom: 44px;
}

/* bigger, punchier section headings (B) */

.section-head h2 {
  font-size: clamp(2rem, 4.2vw, 3.1rem);
  font-weight: 700;
  letter-spacing: -0.025em;
  line-height: 1.06;
}

.section-head p {
  color: var(--ink-70);
  font-size: 1.05rem;
}

.about {
  background: var(--white);
  padding-top: 20px;
}

.about-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 56px;
}

@media (width <= 860px) {
  .about-grid {
    grid-template-columns: 1fr;
    gap: 36px;
  }
}

.about-text p {
  font-size: 1.05rem;
  color: var(--ink-70);
}

.checklist {
  list-style: none;
  margin: 0;
  padding: 0;
  display: flex;
  flex-direction: column;
  gap: 16px;
}

.checklist li {
  display: flex;
  gap: 14px;
  align-items: flex-start;
  font-size: 1rem;
  color: var(--ink);
}

.checklist .tick {
  flex: none;
  width: 26px;
  height: 26px;
  border-radius: 50%;
  background: var(--accent-tint);
  color: var(--accent);
  display: flex;
  align-items: center;
  justify-content: center;
  margin-top: 2px;
}

/* subtle section tint for dynamics (B) */

.takeaways {
  background: linear-gradient(180deg, #fff 0%, var(--soft) 100%);
  padding-bottom: 150px;
}

.cards-grid {
  display: grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 20px;
}

@media (width <= 900px) {
  .cards-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (width <= 600px) {
  .cards-grid {
    grid-template-columns: 1fr;
  }
}

.card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 26px;
  display: flex;
  flex-direction: column;
  gap: 14px;
  transition: transform 0.18s ease, box-shadow 0.18s ease, border-color 0.18s ease;
}

.card:hover {
  transform: translateY(-3px);
  box-shadow: var(--shadow);
  border-color: transparent;
}

.card .icon {
  width: 44px;
  height: 44px;
  border-radius: 12px;
  background: var(--accent-tint);
  display: flex;
  align-items: center;
  justify-content: center;
}

.card h3 {
  font-size: 1.05rem;
  margin: 0;
}

/* subtle section tint for dynamics (B) */

.audience {
  background: radial-gradient(760px 460px at 92% -10%, var(--accent-tint-2) 0%, #fff 62%);
  padding-top: 60px;
}

.program {
  background: linear-gradient(180deg, #fff 0%, var(--soft) 100%);
}

.prog-list {
  list-style: none;
  margin: 0;
  padding: 0;
  max-width: 880px;
  border-top: 1px solid var(--line);
}

.prog-row {
  display: grid;
  grid-template-columns: 150px 1fr;
  gap: 8px 26px;
  align-items: baseline;
  padding: 20px 4px;
  border-bottom: 1px solid var(--line);
  transition: background-color 0.18s ease;
}

.prog-row:hover {
  background-color: rgb(255 255 255 / 70%);
}

.prog-time {
  display: flex;
  align-items: baseline;
  gap: 4px;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.9rem;
  font-weight: 600;
  color: var(--accent);
  white-space: nowrap;
}

.prog-dash {
  opacity: 0.55;
}

.prog-body {
  min-width: 0;
}

.prog-title {
  font-size: 1.12rem;
  font-weight: 600;
  line-height: 1.3;
  margin: 0;
  text-wrap: pretty;
}

.prog-who {
  font-size: 0.92rem;
  font-weight: 600;
  color: var(--ink);
  margin-top: 6px;
}

.prog-link {
  font-weight: 400;
  color: var(--ink-50);
  text-decoration: underline;
  text-decoration-color: var(--line);
  text-underline-offset: 2px;
  margin-left: 8px;
}

.prog-link:hover {
  color: var(--accent);
  text-decoration-color: currentcolor;
}

.prog-firm {
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  font-weight: 500;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-50);
  margin-left: 10px;
  padding-left: 10px;
  border-left: 1px solid var(--line);
}

.prog-tag {
  display: inline-block;
  vertical-align: middle;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.62rem;
  font-weight: 600;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--accent);
  background: var(--accent-tint);
  border-radius: 999px;
  padding: 4px 10px;
  margin-left: 10px;
}

.prog-row.is-break {
  padding-top: 13px;
  padding-bottom: 13px;
}

.prog-row.is-break .prog-time {
  color: var(--ink-50);
  font-weight: 500;
}

.prog-row.is-break .prog-title {
  font-family: Inter, system-ui, sans-serif;
  font-size: 0.94rem;
  font-weight: 500;
  color: var(--ink-50);
}

.prog-row.is-break .prog-who {
  font-size: 0.84rem;
  color: var(--ink-50);
}

.prog-row.is-tbd .prog-title {
  color: var(--ink-50);
  font-style: italic;
}

.prog-note {
  font-size: 0.84rem;
  color: var(--ink-50);
  margin: 22px 0 0;
}

@media (width <= 640px) {
  .prog-row {
    grid-template-columns: 1fr;
    gap: 6px;
    padding: 18px 4px;
  }

  .prog-title {
    font-size: 1rem;
  }

  .prog-firm {
    display: block;
    margin-left: 0;
    padding-left: 0;
    border-left: none;
    margin-top: 3px;
  }
}

.speakers {
  background: var(--soft);
}

.speaker-grid {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 20px;
}

.speaker-grid > * {
  min-width: 0;
}

@media (width <= 1100px) {
  .speaker-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (width <= 860px) {
  .speaker-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.speaker-card {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  padding: 24px 20px;
  text-align: center;
}

.speaker-card.tbd {
  border-style: dashed;
}

.speaker-avatar {
  width: 100%;
  max-width: 170px;
  aspect-ratio: 1/1;
  height: auto;
  border-radius: 10px;
  margin: 0 auto 16px;
  overflow: hidden;
  background: var(--soft-2);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--ink-50);
}

.speaker-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.speaker-card .name {
  font-family: 'Space Grotesk',sans-serif;
  font-weight: 600;
  font-size: 1.05rem;
  color: var(--ink);
}

.speaker-card .role {
  font-size: 0.85rem;
  color: var(--ink-70);
  margin-top: 4px;
  font-weight: 500;
}

.speaker-card .company {
  font-family: 'IBM Plex Mono',monospace;
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  color: var(--ink-70);
  padding-top: 5px;
  display: table;
  margin: 5px auto 0;
  border-top: 1px solid var(--line);
}

@media (width <= 520px) {
  .speaker-card {
    padding: 18px 12px;
  }

  .speaker-card .role {
    font-size: 0.8rem;
  }

  .speaker-card .company {
    font-size: 0.66rem;
  }
}

.speaker-card.tbd .name,
.speaker-card.tbd .role {
  color: var(--ink-50);
}

.speaker-li {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  margin-top: 12px;
  color: #0a66c2;
  transition: opacity 0.15s, transform 0.15s;
}

.speaker-li:hover {
  opacity: 0.75;
  transform: translateY(-1px);
  color: #0a66c2;
}

.register {
  background: none;
  color: var(--ink);
  margin: 0;
  padding: 0;
  position: relative;
}

.register .wrap {
  max-width: 840px;
  text-align: center;
  position: relative;
  z-index: 2;
}

.register h2 {
  color: var(--ink);
  font-size: clamp(1.7rem, 3.6vw, 2.4rem);
}

.register p {
  color: var(--ink-70);
  font-size: 1.05rem;
  max-width: 56ch;
  margin: 0 auto 28px;
}

.register .eyebrow {
  color: var(--accent);
}

.register .eyebrow::before {
  background: var(--accent);
}

.register .btn-primary {
  font-size: 1.05rem;
  padding: 17px 32px;
}

.register-note {
  color: var(--ink-50);
  font-size: 0.85rem;
}

.reg-form[hidden],
.reg-success[hidden] {
  display: none !important; /* stylelint-disable-line declaration-no-important */
}

.reg-form {
  max-width: 560px;
  margin: 8px auto 0;
  text-align: left;
  display: flex;
  flex-direction: column;
  gap: 16px;
  padding: 34px 34px 30px;
  border-radius: 20px;
  border: 3px solid transparent;
  background: linear-gradient(var(--white), var(--white)) padding-box, linear-gradient(281deg, #ff791d 7%, #e73a1d 25%, #e61f23 37%, #c8001c 55%, #721927 83%, #451923 96%) border-box;
  background-size: auto, 280% 280%;
  background-position: center, 0% 50%;
  box-shadow: 0 24px 50px -30px rgb(231 58 29 / 50%);
  animation: reg-border 7s ease-in-out infinite;
}

@keyframes reg-border {
  0% {
    background-position: center, 0% 50%;
  }

  50% {
    background-position: center, 100% 50%;
  }

  100% {
    background-position: center, 0% 50%;
  }
}

.reg-field {
  display: flex;
  flex-direction: column;
  gap: 6px;
}

.reg-field label {
  font-family: 'IBM Plex Mono',monospace;
  font-size: 0.72rem;
  letter-spacing: 0.1em;
  text-transform: uppercase;
  color: rgb(28 28 48 / 90%);
  font-weight: 600;
}

.reg-field label .req {
  color: var(--accent);
}

.reg-field input[type="text"],
.reg-field input[type="tel"],
.reg-field input[type="email"] {
  width: 100%;
  padding: 13px 15px;
  border-radius: var(--radius-sm);
  border: 1px solid var(--line);
  background: var(--white);
  color: var(--ink);
  font-family: Inter, sans-serif;
  font-size: 1rem;
  transition: border-color 0.15s, background 0.15s, box-shadow 0.15s;
}

.reg-field input::placeholder {
  color: var(--ink-50);
}

.reg-field input:focus {
  outline: none;
  border-color: var(--accent);
  box-shadow: 0 0 0 3px rgb(231 58 29 / 12%);
}

.reg-field input.err {
  border-color: #e0483a;
  background: #fff5f3;
}

.reg-err {
  color: #c8341f;
  font-size: 0.82rem;
  margin: 0;
}

.reg-gdpr {
  display: flex;
  align-items: flex-start;
  gap: 11px;
  font-size: 0.9rem;
  color: var(--ink-70);
  line-height: 1.45;
  cursor: pointer;
}

/* stylelint-disable-next-line no-descending-specificity -- .reg-gdpr and .reg-field never match the same element */
.reg-gdpr input {
  margin-top: 3px;
  width: 18px;
  height: 18px;
  flex: none;
  accent-color: var(--accent);
  cursor: pointer;
}

/* stylelint-disable-next-line no-descending-specificity -- .reg-gdpr and .nav-links never match the same element */
.reg-gdpr a {
  color: var(--accent);
  text-decoration: underline;
  text-underline-offset: 2px;
}

.reg-form .btn-primary {
  width: 100%;
  margin-top: 4px;
  padding-right: 3rem;
}

.reg-form .btn-primary:disabled {
  opacity: 0.45;
  cursor: not-allowed;
  filter: grayscale(0.3);
  transform: none;
  box-shadow: 0 8px 18px rgb(28 28 48 / 18%);
}

.reg-alert {
  background: #fff1ee;
  border: 1px solid rgb(231 58 29 / 35%);
  color: #c8341f;
  border-radius: var(--radius-sm);
  padding: 12px 15px;
  font-size: 0.9rem;
  margin: 0;
}

.reg-success {
  max-width: 560px;
  margin: 8px auto 0;
  text-align: center;
  padding: 40px 34px;
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: 20px;
  box-shadow: 0 24px 50px -32px rgb(28 28 48 / 40%);
}

.reg-success .check {
  width: 64px;
  height: 64px;
  border-radius: 50%;
  margin: 0 auto 20px;
  background: var(--accent-tint);
  border: 1px solid var(--accent-tint);
  display: flex;
  align-items: center;
  justify-content: center;
}

.reg-success p {
  color: var(--ink);
  font-size: 1.2rem;
  font-family: 'Space Grotesk',sans-serif;
  margin: 0;
}

.register-glow {
  display: none;
}

.hosts {
  background: var(--white);
}

.host-grid {
  display: flex;
  justify-content: center;
  gap: 28px;
  flex-wrap: wrap;
}

.host-card {
  width: 260px;
  text-align: center;
  padding: 28px 22px;
  border: 1px solid var(--line);
  border-radius: var(--radius);
  background: var(--soft);
}

.host-avatar {
  width: 96px;
  height: 96px;
  border-radius: 50%;
  margin: 0 auto 16px;
  overflow: hidden;
  background: var(--accent-tint);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--accent);
}

.host-avatar img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

/* stylelint-disable-next-line no-descending-specificity -- .host-card and .speaker-card never match the same element */
.host-card .name {
  font-family: 'Space Grotesk',sans-serif;
  font-weight: 600;
  font-size: 1.05rem;
}

/* stylelint-disable-next-line no-descending-specificity -- .host-card and .speaker-card never match the same element */
.host-card .role {
  font-size: 0.86rem;
  color: var(--ink-70);
  margin-bottom: 6px;
}

.host-card .bio {
  font-size: 0.86rem;
  color: var(--ink-50);
}

@media (width <= 720px) {
  .stats-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

.stat b {
  display: block;
  font-family: 'Space Grotesk',sans-serif;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  color: var(--accent);
}

.stat span {
  font-size: 0.9rem;
  color: var(--ink-70);
}

.partners-strip {
  margin-top: 52px;
  padding-top: 34px;
  border-top: 1px solid var(--line);
  text-align: center;
}

.partners-strip-label {
  display: block;
  font-family: 'IBM Plex Mono', monospace;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-50);
  font-weight: 600;
}

.partner-logos {
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 56px;
  flex-wrap: wrap;
  margin-top: 22px;
}

.partner-logos img {
  height: 39px;
}

.faq {
  background: var(--soft);
}

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 12px;
  max-width: 760px;
}

.faq-item {
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius-sm);
  overflow: hidden;
}

.faq-q {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  cursor: pointer;
  padding: 18px 22px;
  display: flex;
  justify-content: space-between;
  align-items: center;
  gap: 16px;
  font-family: 'Space Grotesk',sans-serif;
  font-weight: 600;
  font-size: 1rem;
  color: var(--ink);
}

.faq-q:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: -3px;
}

.faq-q .plus {
  transition: transform 0.2s ease;
  color: var(--accent);
  flex: none;
}

.faq-item.open .faq-q .plus {
  transform: rotate(45deg);
}

.faq-a {
  max-height: 0;
  overflow: hidden;
  transition: max-height 0.25s ease;
  padding: 0 22px;
}

.faq-item.open .faq-a {
  padding-bottom: 18px;
}

.faq-a p {
  color: var(--ink-70);
  font-size: 0.96rem;
  margin: 0;
}

.contact {
  background: var(--white);
}

.contact-box {
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: 24px;
  background: var(--accent-tint-2);
  border: 1px solid var(--accent-tint);
  border-radius: var(--radius);
  padding: 34px 36px;
}

.contact-box h3 {
  margin: 0 0 6px;
}

.contact-box p {
  margin: 0;
  color: var(--ink-70);
}

footer {
  background: var(--ink);
  color: rgb(255 255 255 / 70%);
  padding: 48px 0 28px;
}

.footer-top {
  display: flex;
  justify-content: space-between;
  align-items: center;
  flex-wrap: wrap;
  gap: 20px;
  padding-bottom: 28px;
  border-bottom: 1px solid rgb(255 255 255 / 12%);
}

.footer-top img {
  height: 24px;
}

.footer-top .footer-logo {
  height: 26px;
  width: auto;
  display: block;
  filter: brightness(0) invert(1);
}

.footer-links {
  display: flex;
  gap: 24px;
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.9rem;
}

/* stylelint-disable-next-line no-descending-specificity -- .footer-links and .nav-links never match the same element */
.footer-links a {
  text-decoration: none;
  color: rgb(255 255 255 / 70%);
}

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

.footer-bottom {
  padding-top: 22px;
  display: flex;
  justify-content: space-between;
  flex-wrap: wrap;
  gap: 10px;
  font-size: 0.8rem;
  color: rgb(255 255 255 / 45%);
}

/* ===================== v1B — dynamic redesign ===================== */

/* bigger, punchier section headings (B) */

.about-text h2 {
  font-size: clamp(1.9rem, 3.6vw, 2.7rem);
  font-weight: 700;
  letter-spacing: -0.02em;
}

@media (width <= 900px) {
  .hero-shield {
    display: none;
  }
}

.btn-hero-ghost {
  color: var(--ink);
  background: #fff;
  border: 1px solid var(--line);
  box-shadow: 0 6px 18px rgb(28 28 48 / 8%);
  font-weight: 500;
}

.btn-hero-ghost::after {
  background-image: url('https://aivkostce.cz/themes/custom/webai/images/button-tick-orange.svg');
}

.btn-hero-ghost:hover {
  background: #fff;
  border-color: var(--accent);
  color: var(--accent-dark);
  transform: translateY(-0.125rem);
  box-shadow: 0 12px 26px rgb(28 28 48 / 12%);
}

.hero-coorg {
  display: flex;
  align-items: center;
  gap: 14px 20px;
  flex-wrap: wrap;
  margin-top: 40px;
}

.hero-coorg .lbl {
  font-family: 'IBM Plex Mono',monospace;
  font-size: 0.72rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  color: var(--ink-50);
}

.hero-coorg .logos {
  display: flex;
  gap: 12px;
  flex-wrap: wrap;
}

.coorg-chip {
  background: #fff;
  border: 1px solid var(--line);
  border-radius: 12px;
  padding: 0 16px;
  height: 52px;
  display: flex;
  align-items: center;
  box-shadow: 0 12px 30px -14px rgb(28 28 48 / 28%);
  transition: transform 0.18s ease, box-shadow 0.18s ease;
}

.coorg-chip:hover {
  transform: translateY(-3px);
  box-shadow: 0 18px 40px -16px rgb(28 28 48 / 34%);
}

.coorg-chip img {
  height: 22px;
  width: auto;
  display: block;
}

.hero-scroll {
  position: absolute;
  left: 50%;
  bottom: 24px;
  transform: translateX(-50%);
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  color: var(--ink-50);
  text-decoration: none;
  font-family: 'IBM Plex Mono',monospace;
  font-size: 0.68rem;
  letter-spacing: 0.16em;
  text-transform: uppercase;
  animation: bob 2.4s ease-in-out infinite;
}

.hero-scroll:hover {
  color: var(--accent);
}

@keyframes hero-float-1 {
  0%,
  100% {
    transform: translate(0, 0);
  }

  50% {
    transform: translate(-44px, 34px);
  }
}

@keyframes hero-float-2 {
  0%,
  100% {
    transform: translate(0, 0);
  }

  50% {
    transform: translate(44px, -30px);
  }
}

@keyframes node-pulse {
  0%,
  100% {
    r: 4.5;
    fill-opacity: 0.85;
  }

  50% {
    r: 6.5;
    fill-opacity: 1;
  }
}

@keyframes bob {
  0%,
  100% {
    transform: translateX(-50%) translateY(0);
  }

  50% {
    transform: translateX(-50%) translateY(6px);
  }
}

@keyframes draw-check {
  to {
    stroke-dashoffset: 0;
  }
}

/* ---------- HERO v2A : video background, centered title only ---------- */

.hero.hero-video {
  position: relative;
  overflow: hidden;
  min-height: calc(100svh - 57px);
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 120px 0;
  background: #0b0d16 radial-gradient(circle at 50% 40%, #1c2338 0%, #0b0d16 72%);
  color: var(--white);
  text-align: center;
}

.hero-video-bg {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  object-fit: cover;
  z-index: 0;
  pointer-events: none;
}

.hero-video-scrim {
  position: absolute;
  inset: 0;
  z-index: 1;
  background: radial-gradient(circle at 50% 46%, rgb(11 13 22 / 13%) 0%, rgb(11 13 22 / 57%) 62%, rgb(11 13 22 / 81%) 100%), linear-gradient(180deg, rgb(11 13 22 / 55%) 0%, rgb(11 13 22 / 15%) 34%, rgb(11 13 22 / 50%) 78%, #0f1220 100%);
}

.hero-video-inner {
  position: relative;
  z-index: 2;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
}

/* stylelint-disable-next-line no-descending-specificity -- .hero-video and .register never match the same element */
.hero-video .eyebrow {
  color: #fff;
  letter-spacing: 0.34em;
  font-size: 0.86rem;
  padding: 9px 20px;
  border: 1px solid rgb(255 255 255 / 40%);
  border-radius: 999px;
  background: rgb(255 255 255 / 7%);
  backdrop-filter: blur(6px);
  margin-bottom: 22px;
}

.hero-video .eyebrow::before {
  display: none;
}

.hero-video h1 {
  color: #fff;
  font-weight: 700;
  letter-spacing: -0.035em;
  line-height: 0.98;
  margin: 0;
  font-size: clamp(2.9rem, 9vw, 7.4rem);
  text-shadow: 0 24px 70px rgb(0 0 0 / 55%);
}

.hero-video .hero-scroll {
  left: 50%;
  bottom: 34px;
  color: #fff;
  opacity: 0.95;
  gap: 10px;
  font-size: 0.72rem;
  letter-spacing: 0.2em;
  text-shadow: 0 2px 12px rgb(0 0 0 / 50%);
}

.hero-video .hero-scroll:hover {
  color: #fff;
  opacity: 1;
}

.hero-scroll-circle {
  width: 46px;
  height: 46px;
  border-radius: 50%;
  border: 1.5px solid rgb(255 255 255 / 70%);
  background: rgb(255 255 255 / 10%);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  transition: background 0.2s ease, border-color 0.2s ease, transform 0.2s ease;
}

.hero-scroll:hover .hero-scroll-circle {
  background: var(--accent);
  border-color: var(--accent);
  transform: translateY(3px);
}

/* ---------- INTRO section (below the video hero) ---------- */

.intro {
  position: relative;
  overflow: hidden;
  padding: 86px 0 78px;
  color: var(--white);
  background: linear-gradient(178deg, #0f1220 0%, #161a2c 42%, #1c1c30 100%);
}

.intro-bg {
  position: absolute;
  inset: 0;
  z-index: 0;
  overflow: hidden;
}

.intro-net {
  position: absolute;
  inset: 0;
  width: 100%;
  height: 100%;
  opacity: 0.3;
  mask-image: radial-gradient(circle at 60% 40%, #000 0%, transparent 86%);
}

.intro-net .net-lines line {
  stroke-opacity: 0.5;
}

.intro-net .net-dots circle {
  fill-opacity: 0.75;
}

.intro-net .node-hot {
  fill: var(--accent);
  fill-opacity: 0.95;
  animation: node-pulse 3.4s ease-in-out infinite;
}

.intro-glow {
  position: absolute;
  border-radius: 50%;
  filter: blur(34px);
  opacity: 0.55;
}

.intro-glow-1 {
  width: 600px;
  height: 600px;
  right: -12%;
  top: -40%;
  background: radial-gradient(circle, rgb(231 58 29 / 40%), transparent 66%);
  animation: hero-float-1 19s ease-in-out infinite;
}

.intro-glow-2 {
  width: 520px;
  height: 520px;
  left: -12%;
  bottom: -46%;
  background: radial-gradient(circle, rgb(47 75 143 / 55%), transparent 68%);
  animation: hero-float-2 23s ease-in-out infinite;
}

.intro-inner {
  position: relative;
  z-index: 2;
  max-width: 900px;
}

.intro-title {
  color: #fff;
  font-weight: 700;
  letter-spacing: -0.028em;
  line-height: 1.06;
  font-size: clamp(1.9rem, 4.4vw, 3.3rem);
  margin: 0 0 0.45em;
  background-image: linear-gradient(100deg, #ff8a52 0%, #ffb894 26%, #fff 52%, #ffb894 76%, #ff8a52 100%);
  background-size: 200% auto;
  background-clip: text;
  -webkit-text-fill-color: transparent; /* stylelint-disable-line property-no-vendor-prefix */
  animation: shimmer 8s linear infinite;
}

.intro-lede {
  color: rgb(255 255 255 / 78%);
  font-size: 1.14rem;
  max-width: 58ch;
  margin: 0 0 1.6em;
}

.intro-lede em {
  color: #fff;
  font-style: normal;
  font-weight: 600;
  border-bottom: 2px solid rgb(255 138 82 / 65%);
}

.intro .meta-row {
  margin: 0 0 32px;
}

.intro .meta-chip {
  background: rgb(255 255 255 / 8%);
  border-color: rgb(255 255 255 / 20%);
  color: rgb(255 255 255 / 94%);
  backdrop-filter: blur(6px);
}

.intro .meta-chip svg {
  color: #ff9b6b;
}

.intro .btn-hero-ghost {
  color: #fff;
  background: rgb(255 255 255 / 7%);
  border: 1px solid rgb(255 255 255 / 32%);
  box-shadow: none;
}

.intro .btn-hero-ghost::after {
  background-image: url('https://aivkostce.cz/themes/custom/webai/images/button-tick.svg');
}

.intro .btn-hero-ghost:hover {
  background: rgb(255 255 255 / 14%);
  border-color: #fff;
  color: #fff;
}

.intro .hero-coorg {
  margin-top: 38px;
  padding-top: 28px;
  border-top: 1px solid rgb(255 255 255 / 14%);
}

.intro .hero-coorg .lbl {
  color: rgb(255 255 255 / 55%);
}

.intro .coorg-chip {
  border-color: transparent;
  box-shadow: 0 16px 38px -14px rgb(0 0 0 / 60%);
}

@media (prefers-reduced-motion: reduce) {
  /* stylelint-disable-next-line no-descending-specificity -- intentional reduced-motion override, later in the cascade on purpose */
  .intro-title,
  .intro-glow,
  .intro-net .node-hot,
  .hero-video .hero-scroll {
    animation: none;
  }
}

/* ---------- BRANDBAND (C) ---------- */

.brandband {
  background: linear-gradient(180deg, #fff 0%, #faf9f7 100%);
  border-top: 1px solid var(--line);
  border-bottom: 1px solid var(--line);
}

.brandband-grid {
  display: grid;
  grid-template-columns: 300px 1fr;
  gap: 48px;
  align-items: center;
}

@media (width <= 820px) {
  .brandband-grid {
    grid-template-columns: 1fr;
    gap: 30px;
  }
}

.podcast-tile {
  position: relative;
  aspect-ratio: 1/1;
  width: 100%;
  border-radius: var(--radius);
  overflow: hidden;
  display: block;
  text-decoration: none;
  background: var(--soft-2);
  box-shadow: var(--shadow);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
}

.podcast-tile:hover {
  transform: translateY(-4px);
  box-shadow: 0 30px 70px -28px rgb(28 28 48 / 50%);
}

.podcast-tile img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center;
  display: block;
}

.brandband-body h2 {
  font-size: clamp(1.7rem, 3.2vw, 2.5rem);
  font-weight: 700;
  letter-spacing: -0.02em;
  margin: 0.15em 0 0.35em;
}

.brandband-body > p {
  color: var(--ink-70);
  font-size: 1.08rem;
  max-width: 52ch;
  margin-bottom: 26px;
}

.stat-band {
  display: grid;
  grid-template-columns: repeat(4, 1fr);
  gap: 14px;
  border-top: 1px solid var(--line);
  padding-top: 22px;
}

@media (width <= 620px) {
  .stat-band {
    grid-template-columns: repeat(2, 1fr);
    gap: 22px 14px;
  }
}

/* ---------- CTA BAND (D) ---------- */

.cta-band {
  padding: 0;
  position: relative;
  z-index: 5;
  margin-top: -101px;
  margin-bottom: 8px;
}

.cta-band-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 28px;
  flex-wrap: wrap;
  background: linear-gradient(281deg, #ff791d 4%, #e73a1d 26%, #c8001c 58%, #721927 92%);
  border-radius: 24px;
  padding: 44px 46px;
  color: #fff;
  box-shadow: 0 30px 60px -30px rgb(231 58 29 / 60%);
}

.cta-band-inner h2 {
  color: #fff;
  font-size: clamp(1.6rem, 3vw, 2.2rem);
  margin: 0 0 0.3em;
  font-weight: 700;
  letter-spacing: -0.02em;
}

.cta-band-inner p {
  color: rgb(255 255 255 / 88%);
  margin: 0;
  max-width: 52ch;
}

.btn-oncolor {
  background: #fff;
  color: var(--accent-dark);
  box-shadow: 0 12px 28px rgb(0 0 0 / 20%);
  flex: none;
}

.btn-oncolor::after {
  background-image: url('https://aivkostce.cz/themes/custom/webai/images/button-tick-orange.svg');
}

.btn-oncolor:hover {
  background: #fff;
  color: var(--accent);
  transform: translateY(-0.125rem);
  box-shadow: 0 18px 36px rgb(0 0 0 / 26%);
}

/* ---------- AUDIENCE (F) — floating roles ---------- */

.roles-cloud {
  display: flex;
  flex-wrap: wrap;
  justify-content: center;
  align-items: center;
  gap: 20px 22px;
  max-width: 940px;
  margin: 0 auto;
  padding: 18px 0 8px;
}

.role-chip {
  font-family: 'Space Grotesk',sans-serif;
  font-weight: 600;
  font-size: clamp(1rem, 1.4vw, 1.2rem);
  padding: 16px 26px;
  border-radius: 16px;
  background: var(--white);
  color: var(--ink);
  border: 1px solid var(--line);
  box-shadow: 0 18px 34px -20px rgb(28 28 48 / 45%);
  transform: rotate(var(--rot, 0deg));
  animation: bob-chip var(--dur, 6.5s) ease-in-out infinite;
  animation-delay: var(--delay, 0s);
  will-change: transform;
}

.role-chip.alt {
  background: linear-gradient(135deg, var(--accent-tint-2), var(--accent-tint));
  border-color: var(--accent-tint);
}

@keyframes bob-chip {
  0%,
  100% {
    transform: translateY(0) rotate(var(--rot, 0deg));
  }

  50% {
    transform: translateY(-12px) rotate(var(--rot, 0deg));
  }
}

@media (prefers-reduced-motion: reduce) {
  .role-chip {
    animation: none;
  }

  /* stylelint-disable-next-line no-descending-specificity -- intentional reduced-motion override, later in the cascade on purpose */
  .hero-shield,
  .hero-glow,
  .hero-net .node-hot,
  .hero-scroll {
    animation: none;
  }

  .reg-form {
    animation: none;
  }
}

/* ---------- FILM STRIP (E) ---------- */

.filmstrip-sec {
  background: linear-gradient(180deg, #fff 0%, var(--soft) 100%);
  padding-bottom: 92px;
}

.film-reel {
  background: transparent;
  overflow: hidden;
  cursor: grab;
  touch-action: pan-y;
}

.film-reel.dragging {
  cursor: grabbing;
}

.filmstrip {
  display: flex;
  gap: 16px;
  padding: 16px 24px;
  width: max-content;
}

.film-frame {
  flex: 0 0 clamp(280px, 34vw, 400px);
  position: relative;
  margin: 0;
  padding: 0;
  aspect-ratio: 3/2;
  border-radius: 14px;
  overflow: hidden;
  background: var(--soft-2);
  border: 1px solid var(--line);
  cursor: zoom-in;
  box-shadow: 0 20px 40px -24px rgb(28 28 48 / 35%);
  transition: transform 0.2s ease, box-shadow 0.2s ease;
  appearance: none;
}

.film-frame:hover {
  transform: translateY(-3px);
  box-shadow: 0 26px 50px -24px rgb(28 28 48 / 45%);
}

.film-frame:focus-visible {
  outline: 3px solid var(--accent);
  outline-offset: 3px;
}

.film-frame img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
  pointer-events: none;
  user-select: none;
}

.lightbox[hidden] {
  display: none !important; /* stylelint-disable-line declaration-no-important */
}

.lightbox {
  position: fixed;
  inset: 0;
  z-index: 200;
  background: rgb(8 9 16 / 94%);
  backdrop-filter: blur(6px);
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 8px;
  padding: 24px;
  animation: lb-in 0.18s ease;
}

@keyframes lb-in {
  from {
    opacity: 0;
  }

  to {
    opacity: 1;
  }
}

.lightbox-img {
  max-width: min(92vw, 1400px);
  max-height: 88vh;
  width: auto;
  height: auto;
  border-radius: 10px;
  box-shadow: 0 40px 90px rgb(0 0 0 / 60%);
  display: block;
}

.lightbox-close {
  position: absolute;
  top: 20px;
  right: 20px;
  width: 48px;
  height: 48px;
  border-radius: 50%;
  background: rgb(255 255 255 / 10%);
  border: 1px solid rgb(255 255 255 / 30%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.18s ease, transform 0.18s ease;
}

.lightbox-close:hover {
  background: var(--accent);
  border-color: var(--accent);
  transform: rotate(90deg);
}

.lightbox-nav {
  width: 52px;
  height: 52px;
  flex: none;
  border-radius: 50%;
  background: rgb(255 255 255 / 10%);
  border: 1px solid rgb(255 255 255 / 30%);
  color: #fff;
  display: flex;
  align-items: center;
  justify-content: center;
  cursor: pointer;
  transition: background 0.18s ease, border-color 0.18s ease;
}

.lightbox-nav:hover {
  background: var(--accent);
  border-color: var(--accent);
}

@media (width <= 620px) {
  .lightbox {
    padding: 12px;
    gap: 4px;
  }

  /* stylelint-disable-next-line no-descending-specificity -- intentional responsive override, later in the cascade on purpose */
  .lightbox-nav {
    position: absolute;
    bottom: 20px;
    width: 46px;
    height: 46px;
  }

  .lightbox-prev {
    left: 22%;
  }

  .lightbox-next {
    right: 22%;
  }

  .lightbox-img {
    max-height: 74vh;
  }
}

#registrace.register-sec {
  background: var(--soft);
}