/*
 * Snídaně s AI – layout ve stylu AI Predictions
 * Tmavé pozadí, gradientní akcenty, hero s obrázkem a overlay.
 */
:root {
  --color-bg: #0f1419;
  --color-bg-card: #1a2028;
  --color-bg-elevated: #232b36;
  --color-text: #f0f2f5;
  --color-text-muted: #9ca3af;
  --color-border: #2d3748;
  --color-primary: #e11d48;
  --color-primary-end: #ea580c;
  --color-primary-muted: rgba(225, 29, 72, 0.15);
  --color-done-bg: #1a2028;
  --color-done-border: #2d3748;
  --font-sans: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
  --max-width: 1400px;
  --section-spacing: 4rem;
  --radius: 12px;
  --radius-sm: 8px;
  --gradient-accent: linear-gradient(90deg, #e11d48 0%, #ea580c 100%);
  --gradient-hero: linear-gradient(90deg, #e11d48 0%, #c2410c 50%, #1d4ed8 100%);
}

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

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

body {
  font-family: var(--font-sans);
  background: var(--color-bg);
  color: var(--color-text);
  line-height: 1.6;
  overflow-x: hidden;
}

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

/* Header */
.site-header {
  position: fixed;
  top: 0;
  left: 0;
  right: 0;
  z-index: 100;
  background: rgba(15, 20, 25, 0.9);
  backdrop-filter: blur(8px);
  border-bottom: 1px solid var(--color-border);
}

.header-inner {
  display: flex;
  align-items: center;
  justify-content: space-between;
  height: 64px;
  padding: 0 1rem;
}

.logo {
  font-size: 1.25rem;
  font-weight: 700;
  color: var(--color-text);
  text-decoration: none;
  letter-spacing: -0.02em;
}

@media (max-width: 768px) {
  .header-inner {
    height: 56px;
    padding: 0 0.75rem;
  }
  .logo {
    font-size: 1.05rem;
  }
  .nav-cta {
    padding: 0.4rem 0.75rem;
    font-size: 0.85rem;
  }
}

.logo-accent {
  background: var(--gradient-accent);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
}

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

.nav-cta {
  display: inline-block;
  padding: 0.5rem 1rem;
  background: var(--gradient-accent);
  color: #fff;
  font-weight: 600;
  font-size: 0.9rem;
  text-decoration: none;
  border-radius: var(--radius-sm);
  transition: opacity 0.2s, transform 0.2s;
}

.nav-cta:hover {
  opacity: 0.95;
  transform: translateY(-1px);
}

/* Hero – výška omezena na 800px, obrázek se neprotahuje */
.hero {
  position: relative;
  min-height: 400px;
  max-height: 800px;
  display: flex;
  align-items: center;
  justify-content: center;
  padding: 6rem 0 4rem;
  overflow: hidden;
}

@media (max-width: 768px) {
  .hero {
    min-height: 320px;
    padding: 5rem 0 3rem;
  }
  .hero-title {
    font-size: clamp(1.5rem, 6vw, 2rem);
  }
  .hero-subtitle {
    font-size: 1rem;
    margin-bottom: 1.5rem;
  }
}

@media (min-width: 769px) {
  .hero {
    height: 800px;
  }
}

.hero-bg {
  position: absolute;
  inset: 0;
}

.hero-bg-img {
  width: 100%;
  height: 100%;
  object-fit: cover;
  object-position: center center;
  animation: hero-bg-breathe 12s ease-in-out infinite alternate;
}

@keyframes hero-bg-breathe {
  from { transform: scale(1); }
  to   { transform: scale(1.05); }
}

.hero-overlay {
  position: absolute;
  inset: 0;
  background: linear-gradient(135deg, rgba(15, 20, 25, 0.85) 0%, rgba(15, 20, 25, 0.7) 50%, rgba(29, 78, 216, 0.4) 100%);
  animation: hero-overlay-pulse 5s ease-in-out infinite;
}

@keyframes hero-overlay-pulse {
  0%, 100% { opacity: 1; }
  50%      { opacity: 0.92; }
}

.hero-content {
  position: relative;
  z-index: 2;
  text-align: center;
  max-width: 720px;
}

.hero-title {
  font-size: clamp(2rem, 5vw, 3.25rem);
  font-weight: 800;
  line-height: 1.15;
  margin-bottom: 1rem;
  color: #fff;
  letter-spacing: -0.03em;
}

.hero-title-accent {
  background: linear-gradient(90deg, #1d4ed8 0%, #c2410c 50%, #e11d48 100%);
  -webkit-background-clip: text;
  -webkit-text-fill-color: transparent;
  background-clip: text;
  -webkit-text-stroke: 1px rgba(255, 255, 255, 0.45);
  paint-order: stroke fill;
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--color-text-muted);
  margin-bottom: 2rem;
  line-height: 1.6;
}

.hero-actions {
  display: flex;
  flex-wrap: wrap;
  gap: 1rem;
  justify-content: center;
}

.btn {
  display: inline-block;
  padding: 0.75rem 1.5rem;
  border-radius: var(--radius-sm);
  font-size: 1rem;
  font-weight: 600;
  text-decoration: none;
  transition: opacity 0.2s, transform 0.2s;
  border: none;
  cursor: pointer;
  font-family: inherit;
}

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

.btn-primary:hover {
  opacity: 0.95;
  transform: translateY(-1px);
  color: #fff;
}

.btn-secondary {
  background: transparent;
  color: #fff;
  border: 2px solid rgba(255, 255, 255, 0.5);
}

.btn-secondary:hover {
  border-color: #fff;
  color: #fff;
  background: rgba(255, 255, 255, 0.08);
}

/* Sekce */
.section {
  padding: var(--section-spacing) 0;
  background: var(--color-bg);
}

.section-title {
  font-size: 2rem;
  font-weight: 700;
  text-align: center;
  margin-bottom: 2.5rem;
  color: var(--color-text);
  letter-spacing: -0.02em;
}

@media (max-width: 768px) {
  .section,
  .section-goal {
    padding: 2.5rem 0;
  }
  .section-title {
    font-size: 1.5rem;
    margin-bottom: 1.5rem;
  }
}

/* Box „O co jde“ – stejné odsazení jako mezi sekcemi (konzistentní s Nejbližší akce) */
.section-goal {
  padding: var(--section-spacing) 0;
}

.goal-box {
  max-width: 100%;
  margin: 0 auto;
  padding: 2rem 2.25rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  box-shadow: 0 4px 20px rgba(0, 0, 0, 0.2);
  text-align: center;
}

.goal-lead {
  font-size: 1.25rem;
  color: var(--color-text-muted);
  line-height: 1.6;
  margin-bottom: 1.25rem;
  text-align: center;
}

.goal-text {
  font-size: 1.125rem;
  color: var(--color-text);
  line-height: 1.65;
  margin: 0;
  text-align: center;
}

@media (max-width: 768px) {
  .goal-box {
    padding: 1.5rem 1.25rem;
  }
  .goal-lead,
  .goal-text {
    font-size: 1.05rem;
  }
}

.cards-fallback {
  text-align: center;
  color: var(--color-text-muted);
  padding: 2rem;
}

/* Karty akcí – „bedna výtežku“; responzivní: mobil 1 sloupec, tablet 2, desktop 3 */
.cards {
  display: grid;
  grid-template-columns: 1fr;
  gap: 1.25rem;
  justify-items: stretch;
  align-items: stretch;
}

.card {
  width: 100%;
  max-width: 100%;
  display: flex;
  flex-direction: column;
}

/* Tablet: 2 sloupce, karty se zmenší */
@media (min-width: 640px) {
  .cards {
    grid-template-columns: repeat(2, 1fr);
    gap: 1.25rem;
    justify-items: center;
    align-items: end;
  }
  .card {
    width: 100%;
    max-width: 380px;
  }
  .card--done {
    height: 180px;
    min-height: 180px;
  }
  .card--next {
    height: 260px;
    min-height: 260px;
  }
  .card--planned {
    height: 220px;
    min-height: 220px;
  }
  .card-body {
    flex: 1;
    display: flex;
    flex-direction: column;
    overflow: hidden;
    min-height: 0;
  }
  .card-body > .card-actions {
    margin-top: auto;
    flex-shrink: 0;
    padding-bottom: 0;
  }
  .card--done .card-body { padding: 0.9rem; }
  .card--done .card-date { font-size: 0.8rem; }
  .card--done .card h3 { font-size: 1rem; }
  .card--done .card p,
  .card--done .card-location,
  .card--done .card-attendees { font-size: 0.75rem; }
  .card--next .card-body { padding: 1.1rem; }
  .card--next .card-date { font-size: 0.95rem; }
  .card--next .card h3 { font-size: 1.15rem; }
  .card--next .card p,
  .card--next .card-location { font-size: 0.9rem; }
  .card--planned .card-body { padding: 1rem; }
  .card--planned .card-date { font-size: 0.85rem; }
  .card--planned .card h3 { font-size: 1.1rem; }
  .card--planned .card p,
  .card--planned .card-location { font-size: 0.85rem; }
}

/* Desktop: 3 sloupce, karty pružně vyplní prostor (žádné zaříznutí) */
@media (min-width: 1100px) {
  .cards {
    grid-template-columns: repeat(3, 1fr);
    gap: 1.5rem;
  }
  .card {
    width: 100%;
    max-width: 100%;
  }
  .card--done {
    height: 190px;
    min-height: 190px;
  }
  .card--next {
    height: 280px;
    min-height: 280px;
  }
  .card--planned {
    height: 250px;
    min-height: 250px;
  }
  .card--done .card-body { padding: 1rem; }
  .card--done .card-date { font-size: 0.85rem; }
  .card--done .card h3 { font-size: 1.05rem; }
  .card--done .card p,
  .card--done .card-location,
  .card--done .card-attendees { font-size: 0.8rem; }
  .card--next .card-body { padding: 1.35rem; }
  .card--next .card-date { font-size: 1rem; }
  .card--next .card h3 { font-size: 1.25rem; }
  .card--next .card p,
  .card--next .card-location { font-size: 0.95rem; }
  .card--planned .card-body { padding: 1.15rem; }
  .card--planned .card-date { font-size: 0.9rem; }
  .card--planned .card h3 { font-size: 1.15rem; }
  .card--planned .card p,
  .card--planned .card-location { font-size: 0.875rem; }
  .card-body > .card-actions {
    padding-bottom: 0;
  }
}

@media (max-width: 639px) {
  .hero-actions {
    flex-direction: column;
    align-items: center;
  }
  .btn {
    width: 100%;
    max-width: 280px;
    text-align: center;
  }
}

.card {
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  overflow: hidden;
  position: relative;
  transition: box-shadow 0.2s, border-color 0.2s;
}

.card:hover {
  box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
  border-color: rgba(225, 29, 72, 0.3);
}

.card.card--done {
  background: var(--color-done-bg);
  border-color: var(--color-done-border);
  opacity: 0.85;
}

.card-body {
  padding: 1.5rem;
}

.card-date {
  font-size: 0.95rem;
  color: var(--color-primary);
  font-weight: 600;
  margin-bottom: 0.35rem;
}

.card h3 {
  font-size: 1.2rem;
  margin-bottom: 0.35rem;
  color: var(--color-text);
}

.card p {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  margin-bottom: 0.35rem;
}

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

.card-location {
  font-size: 0.875rem;
  color: var(--color-text-muted);
  margin-top: 0.25rem;
}

.card-attendees {
  font-size: 0.875rem;
  color: var(--color-primary);
  font-weight: 600;
  margin-top: 0.25rem;
}

.card-countdown {
  margin-top: 0.75rem;
  font-weight: 600;
  color: var(--color-primary);
  font-size: 1rem;
}

.card-meta {
  font-size: 0.9rem;
  color: var(--color-text-muted);
  font-weight: 500;
}

.card-actions {
  margin-top: 1.25rem;
}

.btn-calendar {
  background: var(--gradient-accent);
  color: #fff !important;
  padding: 0.5rem 1rem;
  font-size: 0.9rem;
  border-radius: var(--radius-sm);
  font-weight: 600;
  text-decoration: none;
  display: inline-block;
  transition: opacity 0.2s;
}

.btn-calendar:hover {
  opacity: 0.9;
  color: #fff;
}

/* Nálepka Proběhla */
.card-badge {
  position: absolute;
  top: 0.75rem;
  right: 0.75rem;
  background: var(--color-text-muted);
  color: var(--color-bg);
  font-size: 0.7rem;
  font-weight: 600;
  padding: 0.35rem 0.6rem;
  border-radius: var(--radius-sm);
  text-transform: uppercase;
  letter-spacing: 0.03em;
}

/* Otevřená témata – pás karet přes celou šířku obrazovky (full-bleed) */
.section-topics {
  overflow: hidden;
  padding-bottom: 0;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
}

.topics-wrap {
  width: 100%;
  overflow: hidden;
  padding: 0.75rem 0 1rem;
  margin-bottom: 1.5em;
}

.topics-track {
  display: flex;
  gap: 1rem;
  width: max-content;
  animation: topics-marquee 55s linear infinite;
  padding: 0 1rem;
}


.topic-card {
  flex-shrink: 0;
  width: 350px;
  min-height: 200px;
  padding: 1rem 1.25rem;
  background: var(--color-bg-card);
  border: 1px solid var(--color-border);
  border-radius: var(--radius);
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  font-size: 1rem;
  font-weight: 500;
  color: var(--color-text);
  line-height: 1.4;
  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.15);
}

@keyframes topics-marquee {
  0% {
    transform: translateX(0);
  }
  100% {
    transform: translateX(-50%);
  }
}

@media (max-width: 768px) {
  .topics-wrap {
    padding: 0.5rem 0 0.75rem;
  }
  .topics-track {
    padding: 0 0.75rem;
    gap: 0.75rem;
    animation-duration: 40s;
  }
  .topic-card {
    width: min(280px, 85vw);
    min-height: 140px;
    font-size: 0.9rem;
    padding: 0.75rem 1rem;
  }
}

/* Fotky – skryto */
.section-photos {
  display: none;
}

/* Footer */
.footer {
  padding: 1.5rem 0;
  border-top: 1px solid var(--color-border);
  text-align: center;
  font-size: 0.875rem;
  color: var(--color-text-muted);
  background: var(--color-bg);
}

@media (max-width: 768px) {
  .footer {
    padding: 1rem 0;
    font-size: 0.8rem;
  }
  .footer-text {
    padding: 0 0.5rem;
  }
}

.footer-text {
  margin: 0;
}

.footer a {
  color: var(--color-primary);
  text-decoration: none;
}

.footer a:hover {
  text-decoration: underline;
}