/* ==========================================================================
   DigiNeptun 2026 – globální nastavení
   --------------------------------------------------------------------------
   Kde upravovat:
   - Barvy a fonty: sekce :root níže
   - Layout sekcí: sekce "Layout" a konkrétní bloky (hero, .section, .workshop-card…)
   - Animace: sekce "Animace a efekty"
   ========================================================================== */

:root {
  /* Barevná paleta – lze snadno upravit podle vizuální identity */
  --color-bg: #050815;
  --color-bg-elevated: #0b1020;
  --color-bg-alt: #0f172a;
  --color-surface: #111827;
  --color-surface-soft: #111827f2;

  --color-primary: #38bdf8; /* akcent – jemnější azurová */
  --color-primary-soft: #0ea5e9;
  --color-primary-muted: #7dd3fc;

  --color-accent: #f97316; /* teplý akcent pro drobnosti */

  --color-border-subtle: rgba(148, 163, 184, 0.24);
  --color-shadow-soft: rgba(15, 23, 42, 0.7);

  --color-text: #e5e7eb;
  --color-text-soft: #9ca3af;
  --color-text-strong: #f9fafb;

  --radius-xl: 28px;
  --radius-lg: 18px;
  --radius-md: 12px;
  --radius-pill: 999px;

  --shadow-soft: 0 24px 60px var(--color-shadow-soft);

  --font-heading: 'Poppins', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI',
    sans-serif;
  --font-body: 'Source Sans 3', system-ui, -apple-system, BlinkMacSystemFont, 'Segoe UI',
    sans-serif;

  --content-width: 1120px;

  --transition-fast: 180ms ease-out;
  --transition-base: 220ms ease-out;
}

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

html {
  scroll-behavior: smooth;
}

body {
  margin: 0;
  min-height: 100vh;
  background: radial-gradient(circle at top left, #1e293b 0, #020617 42%, #000 100%);
  color: var(--color-text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

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

a {
  color: inherit;
  text-decoration: none;
}

p {
  margin: 0 0 0.9rem;
  line-height: 1.6;
}

h1,
h2,
h3,
h4 {
  margin: 0 0 0.7rem;
  font-family: var(--font-heading);
  color: var(--color-text-strong);
  letter-spacing: 0.02em;
}

/* ==========================================================================
   Layout
   ========================================================================== */

.container {
  width: 100%;
  max-width: var(--content-width);
  margin: 0 auto;
  padding: 0 1.5rem;
}

.section {
  padding: 5.5rem 0;
}

.section-alt {
  padding: 5.5rem 0;
  background: radial-gradient(circle at top right, #0f172a 0, #020617 40%, #020617 100%);
}

.section-header {
  max-width: 720px;
  margin: 0 auto 2.75rem;
  text-align: left;
}

.section-header h2 {
  font-size: clamp(1.9rem, 2.4vw, 2.3rem);
}

.section-header p {
  color: var(--color-text-soft);
}

.section-grid {
  display: grid;
  grid-template-columns: 1.7fr 1.3fr;
  gap: 2.5rem;
  align-items: flex-start;
}

.section-text h2 {
  font-size: clamp(1.9rem, 2.4vw, 2.3rem);
}

.section-text p {
  color: var(--color-text-soft);
}

.section-card {
  border-radius: var(--radius-xl);
  border: 1px solid var(--color-border-subtle);
  padding: 2rem;
  background: linear-gradient(135deg, rgba(15, 23, 42, 0.9), rgba(15, 23, 42, 0.82));
  box-shadow: 0 30px 80px rgba(15, 23, 42, 0.9);
}

.side-program-layout {
  align-items: center;
}

.side-program-text {
  color: var(--color-text-soft);
  margin-bottom: 1rem;
}

.side-program-gallery {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.side-program-thumb {
  margin: 0;
  padding: 0;
  flex: 0 0 180px;
  border-radius: 18px;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: rgba(15, 23, 42, 0.96);
}

.side-program-thumb img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  display: block;
}

.highlight-card h3 {
  font-size: 1.4rem;
}

.highlight-card p {
  color: var(--color-text-soft);
}

.highlight-card .card-link {
  display: inline-flex;
  margin-top: 1rem;
  font-weight: 500;
  color: var(--color-primary-muted);
}

.highlight-card .card-link:hover {
  color: var(--color-primary);
}

.bullet-list {
  list-style: none;
  padding: 0;
  margin: 0;
}

.bullet-list li {
  position: relative;
  padding-left: 1.4rem;
  margin-bottom: 0.5rem;
  color: var(--color-text-soft);
}

.bullet-list li::before {
  content: '';
  position: absolute;
  left: 0.35rem;
  top: 0.7rem;
  width: 6px;
  height: 6px;
  border-radius: 999px;
  background: linear-gradient(135deg, var(--color-primary-soft), var(--color-accent));
}

/* ==========================================================================
   Sticky header a navigace
   ========================================================================== */

.site-header {
  position: sticky;
  top: 0;
  z-index: 40;
  backdrop-filter: blur(22px);
  background: linear-gradient(to bottom, rgba(2, 6, 23, 0.9), rgba(2, 6, 23, 0.6));
  border-bottom: 1px solid rgba(148, 163, 184, 0.22);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 0.9rem 0;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.7rem;
}

.logo-image {
  width: 56px;
  height: 56px;
  border-radius: 20px;
  object-fit: contain;
  /* Bílý podklad zajišťuje dobrou čitelnost loga na tmavém pozadí */
  background: #ffffff;
  padding: 6px;
  box-shadow: 0 20px 44px rgba(8, 47, 73, 0.85);
}

.footer-logo-image {
  width: 44px;
  height: 44px;
  border-radius: 18px;
}

.avatar-initials {
  font-size: 0.8rem;
  font-weight: 600;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.logo-mark {
  width: 40px;
  height: 40px;
  border-radius: 16px;
  background: radial-gradient(circle at 20% 0, #38bdf8, #0ea5e9 40%, #1d4ed8 90%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-weight: 600;
  font-size: 0.9rem;
  color: #0b1120;
  box-shadow: 0 18px 40px rgba(8, 47, 73, 0.7);
}

.logo-mark-small {
  width: 32px;
  height: 32px;
  border-radius: 14px;
  font-size: 0.8rem;
}

.logo-text {
  display: flex;
  flex-direction: column;
  gap: 0.15rem;
}

.logo-title {
  font-weight: 600;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-size: 0.75rem;
  color: var(--color-text-strong);
}

.logo-subtitle {
  font-size: 0.7rem;
  color: var(--color-text-soft);
}

.site-nav {
  display: flex;
  align-items: center;
  gap: 0.7rem;
}

.nav-link {
  padding: 0.45rem 0.8rem;
  border-radius: var(--radius-pill);
  font-size: 0.86rem;
  color: var(--color-text-soft);
  transition: background-color var(--transition-fast), color var(--transition-fast),
    transform var(--transition-fast);
}

.nav-link:hover {
  color: var(--color-text-strong);
  background: rgba(15, 23, 42, 0.9);
  transform: translateY(-1px);
}

.nav-link.nav-link-secondary {
  border: 1px solid rgba(148, 163, 184, 0.6);
}

.nav-link.nav-link-cta {
  background: linear-gradient(135deg, var(--color-primary-soft), var(--color-primary));
  color: #0b1120;
  font-weight: 600;
  box-shadow: 0 14px 38px rgba(56, 189, 248, 0.4);
}

.nav-link.nav-link-cta:hover {
  background: linear-gradient(135deg, #0ea5e9, #22d3ee);
}

.nav-link.is-active {
  color: var(--color-text-strong);
  background: rgba(15, 23, 42, 0.96);
}

.nav-toggle {
  display: none;
  position: relative;
  width: 40px;
  height: 32px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: rgba(15, 23, 42, 0.92);
  cursor: pointer;
  align-items: center;
  justify-content: center;
  padding: 0;
}

.nav-toggle-line {
  position: absolute;
  width: 18px;
  height: 2px;
  border-radius: 999px;
  background: #e5e7eb;
  transition: transform 200ms ease, opacity 140ms ease, top 200ms ease;
}

.nav-toggle-line:first-child {
  top: 11px;
}

.nav-toggle-line:last-child {
  top: 19px;
}

.nav-toggle.is-open .nav-toggle-line:first-child {
  transform: rotate(45deg);
  top: 15px;
}

.nav-toggle.is-open .nav-toggle-line:last-child {
  transform: rotate(-45deg);
  top: 15px;
}

/* ==========================================================================
   Tlačítka
   ========================================================================== */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.9rem 1.8rem;
  border-radius: var(--radius-pill);
  border: none;
  cursor: pointer;
  font-family: var(--font-heading);
  font-size: 0.95rem;
  font-weight: 500;
  letter-spacing: 0.05em;
  text-transform: uppercase;
  transition: transform var(--transition-fast), box-shadow var(--transition-fast),
    background var(--transition-base), color var(--transition-fast);
  white-space: nowrap;
}

.btn-primary {
  background: linear-gradient(135deg, var(--color-primary-soft), var(--color-primary));
  color: #0b1120;
  box-shadow: 0 16px 40px rgba(56, 189, 248, 0.4);
}

.btn-primary:hover {
  transform: translateY(-1px);
  box-shadow: 0 22px 50px rgba(56, 189, 248, 0.5);
}

.btn-ghost {
  background: rgba(15, 23, 42, 0.9);
  color: var(--color-text-strong);
  border: 1px solid rgba(148, 163, 184, 0.6);
}

.btn-ghost:hover {
  background: rgba(15, 23, 42, 1);
}

/* ==========================================================================
   HERO
   ========================================================================== */

.hero {
  position: relative;
  padding: 6rem 0 4.5rem;
  overflow: hidden;
}

.hero-bg-layer {
  position: absolute;
  inset: 0;
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.16), transparent 60%),
    radial-gradient(circle at bottom right, rgba(59, 130, 246, 0.18), transparent 55%);
  opacity: 0.96;
  pointer-events: none;
}

.hero-inner {
  position: relative;
  display: grid;
  grid-template-columns: minmax(0, 1.7fr) minmax(0, 1.2fr);
  gap: 2.75rem;
  align-items: center;
}

.hero-content {
  max-width: 620px;
}

.hero-eyebrow {
  font-size: 0.78rem;
  letter-spacing: 0.2em;
  text-transform: uppercase;
  color: var(--color-primary-muted);
  margin-bottom: 0.8rem;
}

.hero-top-badge {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.25rem 0.9rem;
  margin-bottom: 0.75rem;
  border-radius: 999px;
  font-size: 0.75rem;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #e5e7eb;
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.18), transparent 55%),
    rgba(15, 23, 42, 0.96);
}

.hero-title {
  font-size: clamp(2.3rem, 4vw, 3rem);
  line-height: 1.08;
  margin-bottom: 0.6rem;
}

.hero-subtitle {
  color: var(--color-text-soft);
  font-size: 1.02rem;
}

.hero-meta {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  margin: 1.6rem 0 0.8rem;
}

.hero-meta-item {
  min-width: 0;
  padding: 0.7rem 1rem;
  border-radius: var(--radius-lg);
  border: 1px solid rgba(148, 163, 184, 0.45);
  background: linear-gradient(
    135deg,
    rgba(15, 23, 42, 0.94),
    rgba(15, 23, 42, 0.86)
  );
}

.hero-meta-label {
  display: block;
  font-size: 0.7rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-text-soft);
  margin-bottom: 0.1rem;
}

.hero-meta-value {
  font-size: 0.98rem;
}

.hero-note {
  margin-top: 1.2rem;
  color: var(--color-text-soft);
}

.hero-countdown {
  margin-top: 0.4rem;
  font-size: 0.82rem;
  color: var(--color-primary-muted);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.hero-countdown-aside {
  text-align: right;
  margin-bottom: 0.5rem;
}

.calendar-link {
  display: inline-flex;
  margin-top: 1.1rem;
  padding: 0.55rem 1rem;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.7);
  font-size: 0.8rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--color-primary-muted);
  background: rgba(15, 23, 42, 0.9);
  transition: background-color var(--transition-fast), border-color var(--transition-fast),
    color var(--transition-fast), transform var(--transition-fast);
}

.calendar-link:hover {
  background: rgba(15, 23, 42, 1);
  border-color: var(--color-primary-soft);
  color: var(--color-primary-soft);
  transform: translateY(-1px);
}

.hero-funding {
  margin: 1.3rem 0 1.6rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.7rem;
  align-items: center;
  color: var(--color-text-soft);
}

.pill {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  padding: 0.3rem 0.9rem;
  border-radius: var(--radius-pill);
  font-size: 0.78rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  font-weight: 600;
  color: #0f172a;
  background: linear-gradient(135deg, #fbbf24, #f97316);
}

.hero-cta {
  display: flex;
  flex-wrap: wrap;
  gap: 0.9rem;
}

.hero-aside {
  position: relative;
}

.hero-card {
  position: relative;
  border-radius: 32px;
  padding: 2.1rem 2rem 2rem;
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.2), transparent 55%),
    linear-gradient(145deg, rgba(15, 23, 42, 0.98), rgba(15, 23, 42, 0.88));
  border: 1px solid rgba(148, 163, 184, 0.45);
  box-shadow: 0 34px 90px rgba(15, 23, 42, 0.9);
}

.hero-card-badge {
  position: absolute;
  top: 1.2rem;
  right: 1.4rem;
  padding: 0.4rem 0.9rem;
  border-radius: 999px;
  font-size: 0.75rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  background: rgba(15, 23, 42, 0.86);
  border: 1px solid rgba(148, 163, 184, 0.7);
  color: var(--color-text-soft);
}

.hero-card-title {
  font-size: 1.25rem;
  margin-bottom: 0.7rem;
}

.hero-card-text {
  color: var(--color-text-soft);
  margin-bottom: 0.9rem;
}

.hero-card-list {
  list-style: none;
  padding: 0;
  margin: 0;
  font-size: 0.95rem;
  color: var(--color-text-soft);
}

.hero-card-list li {
  position: relative;
  padding-left: 1.1rem;
  margin-bottom: 0.4rem;
}

.hero-card-list li::before {
  content: '•';
  position: absolute;
  left: 0;
  color: var(--color-primary-soft);
}

/* ==========================================================================
   Program – karty workshopů
   ========================================================================== */

.workshop-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.7rem;
}

.workshop-card {
  border-radius: var(--radius-lg);
  padding: 1.6rem 1.7rem 1.6rem;
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.12), transparent 70%),
    linear-gradient(150deg, rgba(15, 23, 42, 0.96), rgba(15, 23, 42, 0.9));
  border: 1px solid rgba(148, 163, 184, 0.35);
  box-shadow: 0 26px 70px rgba(15, 23, 42, 0.92);
  transition: transform var(--transition-base), box-shadow var(--transition-base),
    border-color var(--transition-base), background var(--transition-base);
}

.workshop-card h3 {
  font-size: 1.1rem;
}

.workshop-card p {
  color: var(--color-text-soft);
}

.workshop-card .workshop-tag {
  font-size: 0.78rem;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-primary-muted);
  margin-bottom: 0.8rem;
}

.workshop-card:hover {
  transform: translateY(-4px);
  box-shadow: 0 32px 80px rgba(15, 23, 42, 0.96);
  border-color: rgba(56, 189, 248, 0.7);
  background: radial-gradient(circle at top left, rgba(56, 189, 248, 0.22), transparent 70%),
    linear-gradient(150deg, rgba(15, 23, 42, 0.98), rgba(15, 23, 42, 0.94));
}

/* ==========================================================================
   Registrace
   ========================================================================== */

.section-registration {
  position: relative;
  padding: 5.5rem 0;
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.22), transparent 60%),
    radial-gradient(circle at bottom right, rgba(59, 130, 246, 0.18), transparent 60%),
    #020617;
}

.registration-layout {
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

.registration-panel {
  border-radius: var(--radius-xl);
  padding: 1.6rem 1.7rem 1.8rem;
  background: rgba(15, 23, 42, 0.96);
  border: 1px solid rgba(148, 163, 184, 0.7);
  box-shadow: 0 30px 80px rgba(15, 23, 42, 0.9);
}

.registration-form {
  display: flex;
  flex-direction: column;
  gap: 1.2rem;
}

.registration-form-grid {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 0.9rem 1.1rem;
}

.form-group {
  display: flex;
  flex-direction: column;
  gap: 0.3rem;
}

.form-group-full {
  grid-column: 1 / -1;
}

.registration-form label {
  font-size: 0.84rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--color-text-soft);
}

.registration-form input,
.registration-form textarea {
  border-radius: 10px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  background: rgba(15, 23, 42, 0.96);
  color: var(--color-text-strong);
  padding: 0.55rem 0.7rem;
  font-family: var(--font-body);
  font-size: 0.92rem;
  outline: none;
  transition: border-color 160ms ease, box-shadow 160ms ease, background-color 160ms ease;
}

.registration-form textarea {
  resize: vertical;
  min-height: 70px;
}

.registration-form input:focus,
.registration-form textarea:focus {
  border-color: var(--color-primary-soft);
  box-shadow: 0 0 0 1px rgba(56, 189, 248, 0.7);
  background: rgba(15, 23, 42, 1);
}

.registration-form input::placeholder,
.registration-form textarea::placeholder {
  color: rgba(148, 163, 184, 0.8);
}

.form-required {
  color: #f97316;
  margin-left: 0.15rem;
}

.form-consents {
  display: flex;
  flex-direction: column;
  gap: 0.45rem;
}

.form-checkbox {
  display: flex;
  gap: 0.5rem;
  align-items: flex-start;
  font-size: 0.86rem;
  color: var(--color-text-soft);
}

.form-checkbox input[type='checkbox'] {
  margin-top: 0.15rem;
  accent-color: var(--color-primary-soft);
}

.form-note {
  font-size: 0.82rem;
  color: var(--color-text-soft);
}

.form-submit {
  margin-top: 0.3rem;
  width: 100%;
  justify-content: center;
}

/* ==========================================================================
   Tým a osoby
   ========================================================================== */

.team-grid {
  display: grid;
  grid-template-columns: repeat(3, minmax(0, 1fr));
  gap: 1.7rem;
}

.person-card {
  display: flex;
  flex-direction: column;
  gap: 1rem;
  border-radius: var(--radius-lg);
  padding: 1.5rem 1.5rem 1.6rem;
  background: linear-gradient(150deg, rgba(15, 23, 42, 0.96), rgba(15, 23, 42, 0.9));
  border: 1px solid rgba(148, 163, 184, 0.35);
}

.person-card-wide {
  display: grid;
  grid-template-columns: auto minmax(0, 1fr);
  gap: 1.4rem;
}

.person-photo {
  width: 80px;
  height: 80px;
  border-radius: 26px;
  overflow: hidden;
}

.person-photo img {
  width: 100%;
  height: 100%;
  object-fit: cover;
}

.placeholder-photo {
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 0.8rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-soft);
  background:
    radial-gradient(circle at top left, rgba(56, 189, 248, 0.2), transparent 60%),
    linear-gradient(145deg, rgba(15, 23, 42, 0.95), rgba(15, 23, 42, 0.9));
  border: 1px dashed rgba(148, 163, 184, 0.6);
}

.person-body h3 {
  font-size: 1rem;
}

.person-role {
  font-size: 0.86rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
  color: var(--color-primary-muted);
  margin-bottom: 0.7rem;
}

.person-body p {
  color: var(--color-text-soft);
}

/* ==========================================================================
   Partneři
   ========================================================================== */

.partners-grid {
  display: grid;
  grid-template-columns: repeat(4, minmax(0, 1fr));
  gap: 1.5rem;
}

.partner-card {
  border-radius: var(--radius-lg);
  padding: 1.2rem 1.3rem;
  background: rgba(15, 23, 42, 0.9);
  border: 1px solid rgba(148, 163, 184, 0.4);
  display: flex;
  flex-direction: column;
  gap: 0.6rem;
  align-items: flex-start;
}

.partner-logo {
  width: 100%;
  aspect-ratio: 3 / 1;
  border-radius: 14px;
  background: radial-gradient(circle at top left, rgba(148, 163, 184, 0.18), transparent 80%),
    rgba(15, 23, 42, 0.96);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-soft);
  font-size: 0.85rem;
  text-transform: uppercase;
  letter-spacing: 0.16em;
}

.partner-name {
  font-size: 0.85rem;
  color: var(--color-text-soft);
}

.placeholder-logo {
  border: 1px dashed rgba(148, 163, 184, 0.7);
}

/* ==========================================================================
   FAQ
   ========================================================================== */

.faq-list {
  display: flex;
  flex-direction: column;
  gap: 0.9rem;
}

.faq-item {
  border-radius: var(--radius-lg);
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: rgba(15, 23, 42, 0.96);
}

.faq-question {
  width: 100%;
  padding: 1rem 1.2rem;
  border: none;
  background: transparent;
  color: var(--color-text-strong);
  font-family: var(--font-heading);
  font-size: 0.98rem;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  cursor: pointer;
}

.faq-answer {
  padding: 0 1.2rem 1.1rem;
  color: var(--color-text-soft);
}

.faq-icon {
  width: 22px;
  height: 22px;
  border-radius: 999px;
  border: 1px solid rgba(148, 163, 184, 0.6);
  position: relative;
  flex-shrink: 0;
}

.faq-icon::before,
.faq-icon::after {
  content: '';
  position: absolute;
  background: #e5e7eb;
  border-radius: 999px;
  transition: transform 180ms ease;
}

.faq-icon::before {
  width: 10px;
  height: 2px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.faq-icon::after {
  width: 2px;
  height: 10px;
  top: 50%;
  left: 50%;
  transform: translate(-50%, -50%);
}

.faq-item.is-open .faq-icon::after {
  transform: translate(-50%, -50%) rotate(90deg);
}

/* ==========================================================================
   Footer
   ========================================================================== */

.site-footer {
  border-top: 1px solid rgba(148, 163, 184, 0.4);
  background: radial-gradient(circle at top, rgba(15, 23, 42, 0.9), #020617 60%);
  padding: 2.6rem 0 1.4rem;
}

.footer-inner {
  display: flex;
  flex-direction: column;
  gap: 1.8rem;
}

.footer-top {
  display: flex;
  align-items: center;
  justify-content: flex-start;
  gap: 1.4rem;
}

.footer-brand {
  display: flex;
  align-items: center;
  gap: 0.9rem;
}

.footer-brand-text span {
  display: block;
}

.footer-sub {
  font-size: 0.82rem;
  color: var(--color-text-soft);
}

.footer-columns {
  display: grid;
  grid-template-columns: minmax(0, 1.2fr) minmax(0, 1.8fr);
  gap: 1.6rem;
}

.footer-col h3 {
  font-size: 0.9rem;
  text-transform: uppercase;
  letter-spacing: 0.18em;
  color: var(--color-text-soft);
  margin-bottom: 0.6rem;
}

.footer-col p {
  color: var(--color-text-soft);
  font-size: 0.95rem;
}

.footer-nav {
  display: flex;
  flex-direction: column;
  gap: 0.25rem;
}

.footer-nav a {
  font-size: 0.9rem;
  color: var(--color-text-soft);
}

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

.social-link {
  display: block;
  font-size: 0.9rem;
  color: var(--color-text-soft);
}

.social-link:hover {
  color: var(--color-primary-muted);
}

.footer-map-wrapper {
  border-radius: 22px;
  overflow: hidden;
  border: 1px solid rgba(148, 163, 184, 0.4);
  background: rgba(15, 23, 42, 0.96);
}

.footer-map {
  width: 100%;
  height: 220px;
  border: 0;
  display: block;
}

/* ==========================================================================
   Animace a efekty při scrollu
   ========================================================================== */

.reveal {
  opacity: 0;
  transform: translateY(18px);
  transition: opacity 420ms ease-out, transform 420ms ease-out;
}

.reveal.in-view {
  opacity: 1;
  transform: translateY(0);
}

/* ==========================================================================
   Responsivita
   ========================================================================== */

@media (max-width: 960px) {
  .hero-inner {
    grid-template-columns: minmax(0, 1.4fr);
  }

  .hero-aside {
    margin-top: 2rem;
  }

  .section-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .team-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }

  .partners-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
  }
}

@media (max-width: 768px) {
  .header-inner {
    padding: 0.75rem 0;
  }

  .site-nav {
    position: fixed;
    inset: 60px 1rem auto 1rem;
    border-radius: 20px;
    border: 1px solid rgba(148, 163, 184, 0.5);
    background: rgba(15, 23, 42, 0.98);
    flex-direction: column;
    align-items: flex-start;
    padding: 0.7rem;
    transform-origin: top right;
    transform: scale(0.96) translateY(-16px);
    opacity: 0;
    pointer-events: none;
    transition: opacity 160ms ease, transform 160ms ease;
  }

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

  .nav-link {
    width: 100%;
  }

  .nav-link.nav-link-cta {
    width: 100%;
    justify-content: center;
  }

  .nav-toggle {
    display: flex;
  }

  .hero {
    padding-top: 5rem;
  }

  .workshop-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .team-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .partners-grid {
    grid-template-columns: minmax(0, 1fr);
  }

  .person-card-wide {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-columns {
    grid-template-columns: minmax(0, 1fr);
  }

  .footer-top {
    flex-direction: column;
    align-items: flex-start;
  }
}

@media (max-width: 520px) {
  .container {
    padding: 0 1.1rem;
  }

  .hero-meta {
    flex-direction: column;
  }

  .section,
  .section-alt,
  .section-registration {
    padding: 4rem 0;
  }

  .btn {
    width: 100%;
  }

  .footer-bottom {
    flex-direction: column;
    align-items: flex-start;
  }
}