/*
 * style-base.css
 * Sdílené základní styly pro hudební weby
 * Mobile first, responzivní
 * Závisí na: style-theme.css (CSS custom properties)
 */

/* =========================================================
   1. RESET & BOX MODEL
   ========================================================= */

*, *::before, *::after {
  box-sizing: border-box;
  margin: 0;
  padding: 0;
}

html {
  font-size: 16px;
  scroll-behavior: smooth;
  -webkit-text-size-adjust: 100%;
}

body {
  font-family: var(--font-body, 'Inter', system-ui, sans-serif);
  font-size: var(--text-base);
  line-height: 1.6;
  color: var(--color-text);
  background-color: var(--color-bg);
  overflow-x: hidden;
}

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

a {
  color: var(--color-accent);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

ul, ol {
  list-style: none;
}

button, input, select, textarea {
  font-family: inherit;
  font-size: inherit;
}

button {
  cursor: pointer;
  border: none;
  background: none;
}

:focus-visible {
  outline: 2px solid var(--color-accent);
  outline-offset: 3px;
}

/* =========================================================
   2. TYPOGRAFIE
   ========================================================= */

h1, h2, h3, h4, h5, h6 {
  font-family: var(--font-heading, 'Playfair Display', Georgia, serif);
  font-weight: 700;
  line-height: 1.2;
  color: var(--color-text);
}

h1 { font-size: var(--text-3xl); }
h2 { font-size: var(--text-2xl); }
h3 { font-size: var(--text-xl); }
h4 { font-size: var(--text-lg); }
h5 { font-size: var(--text-base); }
h6 { font-size: var(--text-sm); }

@media (min-width: 768px) {
  h1 { font-size: var(--text-5xl); }
  h2 { font-size: var(--text-4xl); }
  h3 { font-size: var(--text-2xl); }
  h4 { font-size: var(--text-xl); }
}

@media (min-width: 1024px) {
  h1 { font-size: var(--text-6xl); }
}

p {
  margin-bottom: var(--spacing-md);
  color: var(--color-text);
}

p:last-child {
  margin-bottom: 0;
}

.text-muted {
  color: var(--color-text-muted);
}

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

.text-center { text-align: center; }
.text-left   { text-align: left; }
.text-right  { text-align: right; }

.lead {
  font-size: var(--text-lg);
  line-height: 1.7;
}

@media (min-width: 768px) {
  .lead {
    font-size: var(--text-xl);
  }
}

/* =========================================================
   3. LAYOUT & KONTEJNERY
   ========================================================= */

.container {
  width: 100%;
  max-width: var(--container-max);
  margin-inline: auto;
  padding-inline: var(--spacing-md);
}

@media (min-width: 640px) {
  .container {
    padding-inline: var(--spacing-xl);
  }
}

@media (min-width: 1024px) {
  .container {
    padding-inline: var(--spacing-2xl);
  }
}

.container--wide {
  max-width: var(--container-wide);
}

.container--narrow {
  max-width: 720px;
}

section {
  padding-block: var(--spacing-3xl);
}

@media (min-width: 768px) {
  section {
    padding-block: var(--spacing-4xl);
  }
}

.section--dark {
  background-color: var(--color-bg-dark);
}

.section--light {
  background-color: var(--color-bg-light);
  color: #111111;
}

.section--light h1,
.section--light h2,
.section--light h3,
.section--light h4,
.section--light p {
  color: #111111;
}

.section--light .text-muted {
  color: #555555;
}

.section-header {
  margin-bottom: var(--spacing-2xl);
}

@media (min-width: 768px) {
  .section-header {
    margin-bottom: var(--spacing-3xl);
  }
}

.section-header__eyebrow {
  display: block;
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
}

.section-header__title {
  margin-bottom: var(--spacing-md);
}

.section-header__subtitle {
  font-size: var(--text-lg);
  color: var(--color-text-muted);
  max-width: 640px;
}

/* =========================================================
   4. GRID SYSTÉM
   ========================================================= */

.grid {
  display: grid;
  gap: var(--spacing-lg);
}

.grid--2 { grid-template-columns: 1fr; }
.grid--3 { grid-template-columns: 1fr; }
.grid--4 { grid-template-columns: 1fr; }

@media (min-width: 640px) {
  .grid--2 { grid-template-columns: repeat(2, 1fr); }
  .grid--4 { grid-template-columns: repeat(2, 1fr); }
}

@media (min-width: 768px) {
  .grid--3 { grid-template-columns: repeat(3, 1fr); }
}

@media (min-width: 1024px) {
  .grid--4 { grid-template-columns: repeat(4, 1fr); }
}

.grid--gap-sm { gap: var(--spacing-sm); }
.grid--gap-md { gap: var(--spacing-md); }
.grid--gap-xl { gap: var(--spacing-xl); }

/* Flex utility */
.flex { display: flex; }
.flex--center { align-items: center; justify-content: center; }
.flex--between { align-items: center; justify-content: space-between; }
.flex--wrap { flex-wrap: wrap; }
.flex--gap-sm { gap: var(--spacing-sm); }
.flex--gap-md { gap: var(--spacing-md); }

/* =========================================================
   5. NAVIGACE
   ========================================================= */

.nav {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 1000;
  height: var(--nav-height-mobile);
  background-color: transparent;
  transition: background-color var(--transition-base),
              box-shadow var(--transition-base),
              height var(--transition-base);
}

.nav.is-sticky {
  background-color: var(--color-bg-dark);
  box-shadow: 0 2px 20px rgba(0, 0, 0, 0.4);
}

@media (min-width: 768px) {
  .nav {
    height: var(--nav-height);
  }
}

.nav__inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 100%;
  padding-inline: var(--spacing-md);
}

@media (min-width: 640px) {
  .nav__inner {
    padding-inline: var(--spacing-xl);
  }
}

.nav__logo {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: 0.02em;
  flex-shrink: 0;
}

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

.nav__links {
  display: none;
  align-items: center;
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .nav__links {
    display: flex;
  }
}

.nav__link {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: 0.03em;
  transition: color var(--transition-fast);
  white-space: nowrap;
}

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

.nav__cta {
  display: none;
}

@media (min-width: 768px) {
  .nav__cta {
    display: inline-flex;
  }
}

/* Hamburger */
.nav__hamburger {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 5px;
  width: 32px;
  height: 32px;
  cursor: pointer;
  background: none;
  border: none;
  padding: 0;
}

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

.nav__hamburger span {
  display: block;
  width: 100%;
  height: 2px;
  background-color: var(--color-text);
  border-radius: 2px;
  transition: transform var(--transition-base),
              opacity var(--transition-base);
}

.nav__hamburger.is-open span:nth-child(1) {
  transform: translateY(7px) rotate(45deg);
}
.nav__hamburger.is-open span:nth-child(2) {
  opacity: 0;
}
.nav__hamburger.is-open span:nth-child(3) {
  transform: translateY(-7px) rotate(-45deg);
}

/* Mobilní menu */
.nav__mobile-menu {
  display: none;
  position: fixed;
  top: var(--nav-height-mobile);
  left: 0;
  right: 0;
  background-color: var(--color-bg-dark);
  padding: var(--spacing-xl);
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
  z-index: 999;
  flex-direction: column;
  gap: var(--spacing-lg);
}

.nav__mobile-menu.is-open {
  display: flex;
}

.nav__mobile-menu .nav__link {
  font-size: var(--text-lg);
  padding-block: var(--spacing-sm);
  border-bottom: 1px solid rgba(255,255,255,0.08);
}

/* =========================================================
   6. TLAČÍTKA
   ========================================================= */

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  gap: var(--spacing-sm);
  padding: 0.75rem 1.5rem;
  font-family: var(--font-body);
  font-size: var(--text-base);
  font-weight: 600;
  letter-spacing: 0.02em;
  border-radius: var(--radius-sm);
  text-decoration: none;
  transition: background-color var(--transition-fast),
              color var(--transition-fast),
              border-color var(--transition-fast),
              transform var(--transition-fast),
              box-shadow var(--transition-fast);
  cursor: pointer;
  white-space: nowrap;
  border: 2px solid transparent;
}

.btn:hover {
  transform: translateY(-1px);
  box-shadow: var(--shadow-md);
}

.btn:active {
  transform: translateY(0);
}

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

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

.btn--outline {
  background-color: transparent;
  color: var(--color-text);
  border-color: var(--color-text);
}

.btn--outline:hover {
  background-color: var(--color-text);
  color: var(--color-bg);
}

.btn--outline-accent {
  background-color: transparent;
  color: var(--color-accent);
  border-color: var(--color-accent);
}

.btn--outline-accent:hover {
  background-color: var(--color-accent);
  color: #ffffff;
}

.btn--sm {
  padding: 0.5rem 1rem;
  font-size: var(--text-sm);
}

.btn--lg {
  padding: 1rem 2rem;
  font-size: var(--text-lg);
}

.btn--full {
  width: 100%;
}

/* =========================================================
   7. HERO SEKCE
   ========================================================= */

.hero {
  position: relative;
  min-height: 100svh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  padding-top: var(--nav-height-mobile);
  overflow: hidden;
  background-color: var(--color-bg);
}

@media (min-width: 768px) {
  .hero {
    padding-top: var(--nav-height);
  }
}

.hero__bg {
  position: absolute;
  inset: 0;
  background-color: var(--color-bg-dark);
  background-size: cover;
  background-position: center;
  z-index: 0;
}

.hero__bg::after {
  content: '';
  position: absolute;
  inset: 0;
  background: linear-gradient(
    to bottom,
    rgba(0, 0, 0, 0.3) 0%,
    rgba(0, 0, 0, 0.5) 60%,
    rgba(0, 0, 0, 0.8) 100%
  );
}

.hero__placeholder {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, var(--color-bg-dark) 0%, #2a2a2a 100%);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  letter-spacing: 0.1em;
  text-transform: uppercase;
}

.hero__content {
  position: relative;
  z-index: 1;
  max-width: 900px;
  padding-inline: var(--spacing-md);
}

@media (min-width: 640px) {
  .hero__content {
    padding-inline: var(--spacing-xl);
  }
}

.hero__eyebrow {
  display: inline-block;
  font-size: var(--text-sm);
  font-weight: 600;
  text-transform: uppercase;
  letter-spacing: 0.15em;
  color: var(--color-accent);
  margin-bottom: var(--spacing-lg);
  padding: 0.375rem 1rem;
  border: 1px solid var(--color-accent);
  border-radius: var(--radius-full);
}

.hero__title {
  font-size: var(--text-4xl);
  font-weight: 700;
  color: #ffffff;
  margin-bottom: var(--spacing-lg);
  text-shadow: 0 2px 8px rgba(0, 0, 0, 0.4);
}

@media (min-width: 768px) {
  .hero__title {
    font-size: var(--text-5xl);
  }
}

@media (min-width: 1024px) {
  .hero__title {
    font-size: var(--text-6xl);
  }
}

.hero__subtitle {
  font-size: var(--text-lg);
  color: rgba(255, 255, 255, 0.85);
  margin-bottom: var(--spacing-2xl);
  line-height: 1.7;
}

@media (min-width: 768px) {
  .hero__subtitle {
    font-size: var(--text-xl);
  }
}

.hero__actions {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-md);
  justify-content: center;
}

.hero__scroll {
  position: absolute;
  bottom: var(--spacing-xl);
  left: 50%;
  transform: translateX(-50%);
  z-index: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: var(--spacing-sm);
  color: rgba(255, 255, 255, 0.6);
  font-size: var(--text-xs);
  letter-spacing: 0.1em;
  text-transform: uppercase;
  animation: scrollBounce 2s infinite;
}

.hero__scroll::after {
  content: '';
  display: block;
  width: 1px;
  height: 40px;
  background: linear-gradient(to bottom, rgba(255,255,255,0.6), transparent);
}

@keyframes scrollBounce {
  0%, 100% { transform: translateX(-50%) translateY(0); }
  50%       { transform: translateX(-50%) translateY(6px); }
}

/* =========================================================
   8. KARTY
   ========================================================= */

.card {
  background-color: var(--color-bg-dark);
  border-radius: var(--radius-lg);
  overflow: hidden;
  transition: transform var(--transition-base),
              box-shadow var(--transition-base);
}

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

.card__image {
  width: 100%;
  aspect-ratio: 16 / 9;
  object-fit: cover;
}

.card__image-placeholder {
  width: 100%;
  aspect-ratio: 16 / 9;
  background-color: var(--color-bg);
  display: flex;
  align-items: center;
  justify-content: center;
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.card__body {
  padding: var(--spacing-xl);
}

.card__icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
  display: block;
}

.card__title {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.card__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 0;
}

/* Karta pro typ akce */
.event-card {
  background-color: var(--color-bg-dark);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  border: 1px solid rgba(255,255,255,0.06);
  transition: border-color var(--transition-base),
              transform var(--transition-base),
              box-shadow var(--transition-base);
}

.event-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-4px);
  box-shadow: 0 12px 32px rgba(0, 0, 0, 0.3);
}

.event-card__icon {
  font-size: 2.5rem;
  margin-bottom: var(--spacing-md);
}

.event-card__title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.event-card__text {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.6;
}

/* =========================================================
   9. SOCIÁLNÍ DŮKAZ — REFERENCE
   ========================================================= */

.testimonials-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .testimonials-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.testimonial {
  background-color: var(--color-bg-dark);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  position: relative;
  border-left: 3px solid var(--color-accent);
}

.testimonial__quote {
  font-size: var(--text-base);
  line-height: 1.7;
  color: var(--color-text);
  margin-bottom: var(--spacing-lg);
  font-style: italic;
}

.testimonial__quote::before {
  content: '"';
  font-family: var(--font-heading);
  font-size: 3rem;
  color: var(--color-accent);
  line-height: 0;
  vertical-align: -0.6em;
  margin-right: 0.1em;
}

.testimonial__author {
  font-weight: 600;
  font-size: var(--text-sm);
  color: var(--color-accent);
}

.testimonial__company {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  display: block;
  margin-top: 2px;
}

/* Loga klientů */
.client-logos {
  display: flex;
  flex-wrap: wrap;
  gap: var(--spacing-xl);
  align-items: center;
  justify-content: center;
  margin-top: var(--spacing-2xl);
}

.client-logo {
  height: 40px;
  width: auto;
  opacity: 0.5;
  filter: grayscale(100%);
  transition: opacity var(--transition-fast), filter var(--transition-fast);
}

.client-logo:hover {
  opacity: 1;
  filter: none;
}

.client-logo-placeholder {
  height: 40px;
  width: 120px;
  background-color: var(--color-bg-dark);
  border-radius: var(--radius-sm);
  opacity: 0.4;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

/* =========================================================
   10. STATISTIKY / ČÍSLA
   ========================================================= */

.stats-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: var(--spacing-xl);
}

@media (min-width: 768px) {
  .stats-grid {
    grid-template-columns: repeat(4, 1fr);
  }
}

.stat {
  text-align: center;
  padding: var(--spacing-xl);
}

.stat__number {
  display: block;
  font-family: var(--font-heading);
  font-size: var(--text-5xl);
  font-weight: 700;
  color: var(--color-accent);
  line-height: 1;
  margin-bottom: var(--spacing-sm);
}

.stat__label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-transform: uppercase;
  letter-spacing: 0.08em;
}

/* =========================================================
   11. AUDIO PLAYER
   ========================================================= */

.player {
  background-color: var(--color-bg-dark);
  border-radius: var(--radius-xl);
  padding: var(--spacing-xl);
  max-width: 800px;
  margin-inline: auto;
}

.player__current {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-lg);
}

.player__cover {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-md);
  flex-shrink: 0;
  object-fit: cover;
  background-color: var(--color-bg);
}

.player__cover-placeholder {
  width: 72px;
  height: 72px;
  border-radius: var(--radius-md);
  background: linear-gradient(135deg, var(--color-accent), var(--color-bg));
  flex-shrink: 0;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1.5rem;
}

.player__info {
  flex: 1;
  min-width: 0;
}

.player__track-title {
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
  margin-bottom: 2px;
}

.player__track-meta {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.player__controls {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  margin-bottom: var(--spacing-md);
}

.player__btn {
  background: none;
  border: none;
  color: var(--color-text);
  font-size: 1.25rem;
  cursor: pointer;
  padding: var(--spacing-sm);
  border-radius: var(--radius-full);
  transition: color var(--transition-fast),
              background-color var(--transition-fast);
  display: flex;
  align-items: center;
  justify-content: center;
}

.player__btn:hover {
  color: var(--color-accent);
  background-color: rgba(255,255,255,0.05);
}

.player__btn--play {
  width: 52px;
  height: 52px;
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: 1.5rem;
  border-radius: var(--radius-full);
}

.player__btn--play:hover {
  background-color: var(--color-accent-hover);
  color: #ffffff;
}

.player__progress {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  margin-bottom: var(--spacing-lg);
}

.player__time {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
  min-width: 36px;
}

.player__progress-bar {
  flex: 1;
  height: 4px;
  background-color: rgba(255,255,255,0.15);
  border-radius: var(--radius-full);
  cursor: pointer;
  position: relative;
  appearance: none;
  -webkit-appearance: none;
  outline: none;
}

.player__progress-bar::-webkit-slider-thumb {
  -webkit-appearance: none;
  width: 14px;
  height: 14px;
  border-radius: 50%;
  background-color: var(--color-accent);
  cursor: pointer;
  margin-top: -5px;
}

.player__progress-bar::-webkit-slider-runnable-track {
  height: 4px;
  background: linear-gradient(
    to right,
    var(--color-accent) 0%,
    var(--color-accent) var(--progress, 0%),
    rgba(255,255,255,0.15) var(--progress, 0%)
  );
  border-radius: var(--radius-full);
}

/* Playlist */
.playlist {
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--spacing-md);
}

.playlist__item {
  display: flex;
  align-items: center;
  gap: var(--spacing-md);
  padding: var(--spacing-sm) var(--spacing-sm);
  border-radius: var(--radius-md);
  cursor: pointer;
  transition: background-color var(--transition-fast);
}

.playlist__item:hover {
  background-color: rgba(255,255,255,0.05);
}

.playlist__item.is-active {
  background-color: rgba(255,255,255,0.08);
}

.playlist__item.is-active .playlist__title {
  color: var(--color-accent);
}

.playlist__num {
  width: 24px;
  text-align: center;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
}

.playlist__title {
  flex: 1;
  font-size: var(--text-sm);
  color: var(--color-text);
}

.playlist__duration {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  font-variant-numeric: tabular-nums;
}

/* =========================================================
   12. GALERIE
   ========================================================= */

.gallery {
  display: grid;
  gap: var(--spacing-sm);
  grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 640px) {
  .gallery {
    grid-template-columns: repeat(3, 1fr);
  }
}

@media (min-width: 1024px) {
  .gallery {
    grid-template-columns: repeat(4, 1fr);
  }
}

.gallery__item {
  position: relative;
  aspect-ratio: 1;
  overflow: hidden;
  border-radius: var(--radius-md);
  cursor: pointer;
}

.gallery__item img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  transition: transform var(--transition-slow);
}

.gallery__item:hover img {
  transform: scale(1.05);
}

.gallery__placeholder {
  width: 100%;
  height: 100%;
  background-color: var(--color-bg-dark);
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-align: center;
  padding: var(--spacing-sm);
}

/* Velká galerie (svatba apod.) */
.gallery--wedding {
  grid-template-columns: repeat(2, 1fr);
}

@media (min-width: 768px) {
  .gallery--wedding {
    grid-template-columns: repeat(3, 1fr);
  }
  .gallery--wedding .gallery__item:first-child {
    grid-column: span 2;
    aspect-ratio: 16 / 9;
  }
}

/* =========================================================
   13. FAQ
   ========================================================= */

.faq {
  max-width: 800px;
  margin-inline: auto;
}

.faq__item {
  border-bottom: 1px solid rgba(255,255,255,0.1);
}

.faq__question {
  width: 100%;
  text-align: left;
  background: none;
  border: none;
  padding: var(--spacing-lg) 0;
  font-family: var(--font-heading);
  font-size: var(--text-lg);
  font-weight: 600;
  color: var(--color-text);
  cursor: pointer;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
  transition: color var(--transition-fast);
}

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

.faq__icon {
  flex-shrink: 0;
  width: 24px;
  height: 24px;
  border: 1.5px solid currentColor;
  border-radius: 50%;
  display: flex;
  align-items: center;
  justify-content: center;
  font-size: 1rem;
  transition: transform var(--transition-base);
}

.faq__item.is-open .faq__icon {
  transform: rotate(45deg);
  color: var(--color-accent);
}

.faq__item.is-open .faq__question {
  color: var(--color-accent);
}

.faq__answer {
  max-height: 0;
  overflow: hidden;
  transition: max-height var(--transition-slow),
              padding var(--transition-base);
}

.faq__answer-inner {
  padding-bottom: var(--spacing-lg);
  color: var(--color-text-muted);
  line-height: 1.7;
}

.faq__item.is-open .faq__answer {
  max-height: 500px;
}

/* =========================================================
   14. FORMULÁŘ
   ========================================================= */

.form {
  background-color: var(--color-bg-dark);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  max-width: 720px;
  margin-inline: auto;
}

.form__title {
  font-family: var(--font-heading);
  font-size: var(--text-3xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
  color: var(--color-text);
}

.form__subtitle {
  color: var(--color-text-muted);
  margin-bottom: var(--spacing-2xl);
}

.form__row {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-md);
}

@media (min-width: 640px) {
  .form__row--2 {
    grid-template-columns: repeat(2, 1fr);
  }
}

.form__group {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-xs);
  margin-bottom: var(--spacing-md);
}

.form__label {
  font-size: var(--text-sm);
  font-weight: 500;
  color: var(--color-text);
  display: block;
}

.form__label--required::after {
  content: ' *';
  color: var(--color-accent);
}

.form__input,
.form__select,
.form__textarea {
  width: 100%;
  padding: 0.75rem 1rem;
  background-color: rgba(255, 255, 255, 0.05);
  border: 1px solid rgba(255, 255, 255, 0.12);
  border-radius: var(--radius-md);
  color: var(--color-text);
  font-size: var(--text-base);
  transition: border-color var(--transition-fast),
              background-color var(--transition-fast),
              box-shadow var(--transition-fast);
}

.form__input::placeholder,
.form__textarea::placeholder {
  color: var(--color-text-muted);
}

.form__input:focus,
.form__select:focus,
.form__textarea:focus {
  outline: none;
  border-color: var(--color-accent);
  background-color: rgba(255, 255, 255, 0.08);
  box-shadow: 0 0 0 3px rgba(192, 57, 43, 0.15);
}

.form__input.is-error,
.form__select.is-error,
.form__textarea.is-error {
  border-color: #e74c3c;
}

.form__error {
  font-size: var(--text-xs);
  color: #e74c3c;
  display: none;
}

.form__error.is-visible {
  display: block;
}

.form__select {
  cursor: pointer;
  appearance: none;
  -webkit-appearance: none;
  background-image: url("data:image/svg+xml,%3Csvg xmlns='http://www.w3.org/2000/svg' width='16' height='16' fill='%23888' viewBox='0 0 16 16'%3E%3Cpath d='M7.247 11.14L2.451 5.658C1.885 5.013 2.345 4 3.204 4h9.592a1 1 0 0 1 .753 1.659l-4.796 5.48a1 1 0 0 1-1.506 0z'/%3E%3C/svg%3E");
  background-repeat: no-repeat;
  background-position: right 1rem center;
  padding-right: 2.5rem;
}

.form__select option {
  background-color: var(--color-bg-dark);
  color: var(--color-text);
}

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

/* GDPR checkbox */
.form__checkbox {
  display: flex;
  align-items: flex-start;
  gap: var(--spacing-sm);
  cursor: pointer;
}

.form__checkbox-input {
  flex-shrink: 0;
  width: 18px;
  height: 18px;
  margin-top: 2px;
  accent-color: var(--color-accent);
  cursor: pointer;
}

.form__checkbox-label {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  line-height: 1.5;
}

.form__checkbox-label a {
  color: var(--color-accent);
}

/* Potvrzení po odeslání */
.form__success {
  display: none;
  text-align: center;
  padding: var(--spacing-2xl);
}

.form__success.is-visible {
  display: block;
}

.form__success__icon {
  font-size: 3rem;
  margin-bottom: var(--spacing-md);
}

.form__success__title {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  color: var(--color-text);
  margin-bottom: var(--spacing-sm);
}

.form__success__text {
  color: var(--color-text-muted);
}

/* =========================================================
   15. PROPOJENÍ PROJEKTŮ
   ========================================================= */

.projects-section {
  background-color: var(--color-bg-dark);
  padding-block: var(--spacing-3xl);
}

.projects-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-lg);
  margin-top: var(--spacing-2xl);
}

@media (min-width: 640px) {
  .projects-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.project-card {
  display: block;
  background-color: var(--color-bg);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-lg);
  padding: var(--spacing-xl);
  text-align: center;
  text-decoration: none;
  transition: border-color var(--transition-base),
              transform var(--transition-base);
}

.project-card:hover {
  border-color: var(--color-accent);
  transform: translateY(-3px);
  color: inherit;
}

.project-card__type {
  font-size: var(--text-xs);
  text-transform: uppercase;
  letter-spacing: 0.1em;
  color: var(--color-accent);
  margin-bottom: var(--spacing-sm);
}

.project-card__name {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  color: var(--color-text);
  margin-bottom: var(--spacing-xs);
}

.project-card__domain {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

/* =========================================================
   16. FOOTER
   ========================================================= */

.footer {
  background-color: var(--color-bg-dark);
  border-top: 1px solid rgba(255,255,255,0.08);
  padding-top: var(--spacing-3xl);
  padding-bottom: var(--spacing-xl);
}

.footer__grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-2xl);
  margin-bottom: var(--spacing-2xl);
}

@media (min-width: 640px) {
  .footer__grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .footer__grid {
    grid-template-columns: 2fr 1fr 1fr 1fr;
  }
}

.footer__brand {
  max-width: 320px;
}

.footer__logo {
  font-family: var(--font-heading);
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  display: block;
  margin-bottom: var(--spacing-md);
}

.footer__tagline {
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  line-height: 1.6;
  margin-bottom: var(--spacing-lg);
}

.footer__contact-item {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  color: var(--color-text-muted);
  font-size: var(--text-sm);
  margin-bottom: var(--spacing-sm);
}

.footer__contact-item a {
  color: var(--color-text-muted);
  transition: color var(--transition-fast);
}

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

.footer__col-title {
  font-size: var(--text-sm);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  color: var(--color-text);
  margin-bottom: var(--spacing-lg);
}

.footer__links {
  display: flex;
  flex-direction: column;
  gap: var(--spacing-sm);
}

.footer__link {
  font-size: var(--text-sm);
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.footer__bottom {
  border-top: 1px solid rgba(255,255,255,0.06);
  padding-top: var(--spacing-lg);
  display: flex;
  flex-wrap: wrap;
  align-items: center;
  justify-content: space-between;
  gap: var(--spacing-md);
}

.footer__copy {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
}

.footer__legal {
  display: flex;
  gap: var(--spacing-lg);
}

.footer__legal-link {
  font-size: var(--text-xs);
  color: var(--color-text-muted);
  text-decoration: none;
}

.footer__legal-link:hover {
  color: var(--color-accent);
}

/* =========================================================
   17. CENY
   ========================================================= */

.pricing-grid {
  display: grid;
  grid-template-columns: 1fr;
  gap: var(--spacing-xl);
}

@media (min-width: 640px) {
  .pricing-grid {
    grid-template-columns: repeat(2, 1fr);
  }
}

@media (min-width: 1024px) {
  .pricing-grid {
    grid-template-columns: repeat(3, 1fr);
  }
}

.pricing-card {
  background-color: var(--color-bg-dark);
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: var(--radius-xl);
  padding: var(--spacing-2xl);
  display: flex;
  flex-direction: column;
}

.pricing-card--featured {
  border-color: var(--color-accent);
  position: relative;
}

.pricing-card--featured::before {
  content: 'Nejoblíbenější';
  position: absolute;
  top: -1px;
  left: 50%;
  transform: translateX(-50%);
  background-color: var(--color-accent);
  color: #ffffff;
  font-size: var(--text-xs);
  font-weight: 700;
  text-transform: uppercase;
  letter-spacing: 0.08em;
  padding: 0.25rem 1rem;
  border-radius: 0 0 var(--radius-sm) var(--radius-sm);
}

.pricing-card__name {
  font-family: var(--font-heading);
  font-size: var(--text-xl);
  font-weight: 700;
  margin-bottom: var(--spacing-sm);
}

.pricing-card__price {
  font-size: var(--text-2xl);
  font-weight: 700;
  color: var(--color-accent);
  margin-bottom: var(--spacing-lg);
}

.pricing-card__features {
  flex: 1;
  margin-bottom: var(--spacing-xl);
}

.pricing-card__feature {
  display: flex;
  align-items: center;
  gap: var(--spacing-sm);
  padding-block: var(--spacing-sm);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.pricing-card__feature::before {
  content: '✓';
  color: var(--color-accent);
  font-weight: 700;
  flex-shrink: 0;
}

/* =========================================================
   18. TABULKA TERMÍNŮ
   ========================================================= */

.table-wrapper {
  overflow-x: auto;
  border-radius: var(--radius-lg);
}

.table {
  width: 100%;
  border-collapse: collapse;
  font-size: var(--text-sm);
}

.table th {
  background-color: var(--color-bg-dark);
  color: var(--color-text);
  font-weight: 600;
  text-align: left;
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 2px solid var(--color-accent);
  white-space: nowrap;
}

.table td {
  padding: var(--spacing-md) var(--spacing-lg);
  border-bottom: 1px solid rgba(255,255,255,0.06);
  color: var(--color-text-muted);
  vertical-align: middle;
}

.table tr:hover td {
  background-color: rgba(255,255,255,0.02);
}

.table__badge {
  display: inline-block;
  padding: 0.2rem 0.6rem;
  border-radius: var(--radius-full);
  font-size: var(--text-xs);
  font-weight: 600;
  background-color: var(--color-accent);
  color: #ffffff;
}

/* =========================================================
   19. BREADCRUMB
   ========================================================= */

.breadcrumb {
  display: flex;
  align-items: center;
  flex-wrap: wrap;
  gap: var(--spacing-sm);
  padding: var(--spacing-lg) 0;
  font-size: var(--text-sm);
  color: var(--color-text-muted);
}

.breadcrumb__separator {
  opacity: 0.4;
}

.breadcrumb__link {
  color: var(--color-text-muted);
  text-decoration: none;
  transition: color var(--transition-fast);
}

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

.breadcrumb__current {
  color: var(--color-text);
}

/* =========================================================
   20. NOTIFIKACE / TOAST
   ========================================================= */

.toast {
  position: fixed;
  bottom: var(--spacing-xl);
  right: var(--spacing-xl);
  background-color: var(--color-bg-dark);
  border-left: 4px solid var(--color-accent);
  border-radius: var(--radius-md);
  padding: var(--spacing-md) var(--spacing-lg);
  box-shadow: var(--shadow-xl);
  z-index: 9999;
  max-width: 360px;
  transform: translateY(100px);
  opacity: 0;
  transition: transform var(--transition-base), opacity var(--transition-base);
}

.toast.is-visible {
  transform: translateY(0);
  opacity: 1;
}

/* =========================================================
   21. UTILITY TŘÍDY
   ========================================================= */

.visually-hidden {
  position: absolute;
  width: 1px;
  height: 1px;
  padding: 0;
  margin: -1px;
  overflow: hidden;
  clip: rect(0, 0, 0, 0);
  white-space: nowrap;
  border-width: 0;
}

.mt-sm  { margin-top: var(--spacing-sm); }
.mt-md  { margin-top: var(--spacing-md); }
.mt-lg  { margin-top: var(--spacing-lg); }
.mt-xl  { margin-top: var(--spacing-xl); }
.mt-2xl { margin-top: var(--spacing-2xl); }

.mb-sm  { margin-bottom: var(--spacing-sm); }
.mb-md  { margin-bottom: var(--spacing-md); }
.mb-lg  { margin-bottom: var(--spacing-lg); }
.mb-xl  { margin-bottom: var(--spacing-xl); }
.mb-2xl { margin-bottom: var(--spacing-2xl); }

.d-none   { display: none; }
.d-block  { display: block; }
.d-flex   { display: flex; }
.d-grid   { display: grid; }

@media (min-width: 768px) {
  .d-md-none  { display: none; }
  .d-md-block { display: block; }
  .d-md-flex  { display: flex; }
}

/* Animace při vstupu do viewportu */
.fade-in {
  opacity: 0;
  transform: translateY(24px);
  transition: opacity 0.6s ease, transform 0.6s ease;
}

.fade-in.is-visible {
  opacity: 1;
  transform: translateY(0);
}

/* Oddělovač */
.divider {
  border: none;
  border-top: 1px solid rgba(255,255,255,0.08);
  margin-block: var(--spacing-2xl);
}

.section--light .divider {
  border-color: rgba(0,0,0,0.1);
}

/* Highlight barva */
.highlight {
  color: var(--color-accent);
}