/* ==============================================================================
   COLORS & VARIABLES (podle vaší dresové palety)
   ============================================================================== */
:root {
    --color-primary: #D62828;
    /* tmavší červená */
    --color-secondary: #E63946;
    /* jasnější červená */
    --color-light: #F5A8A8;
    /* světlejší růžovo-červená */
    --color-bg-grad: linear-gradient(135deg,
            #D62828 0%,
            #E63946 50%,
            #F76C6C 100%);
    --color-text: #FFFFFF;
    /* bílá pro texty */
    --font-base: 'Inter', sans-serif;
}

/* ==============================================================================
     RESET & TYPOGRAPHY
     ============================================================================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

html {
    font-family: var(--font-base);
    scroll-behavior: smooth;
    height: 100%;
}

body {
    background: var(--color-bg-grad);
    color: var(--color-text);
    line-height: 1.5;
    display: flex;
    flex-direction: column;
    min-height: 100vh;
    padding-bottom: 4rem;
}

/* ==============================================================================
     NAVIGACE (sticky + logo)
     ============================================================================== */
.main-nav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    background: var(--color-primary);
    padding: 0.75rem 1rem;
    position: sticky;
    top: 0;
    z-index: 100;
    backdrop-filter: blur(8px);
}

.main-nav .logo img {
    height: 50px;
}

.main-nav ul {
    list-style: none;
    display: flex;
    gap: 1.5rem;
}

.main-nav a {
    color: var(--color-text);
    text-decoration: none;
    font-weight: 600;
    transition: opacity 0.2s;
}

.main-nav a:hover {
    opacity: 0.8;
}

/* HERO SECTION - pouze logo a základní text */
#hero {
    position: relative;
    padding: 4rem 1rem;
    background: url('../images/hero-bg.jpg') center/cover no-repeat,
        rgba(0, 0, 0, 0.4);
    background-blend-mode: overlay;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    text-align: center;
}

/* Hero content - horní část */
.hero-content {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
}

/* SPLASHSCREEN - zůstává samostatně na světlém pozadí */
#splash {
    display: flex;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    max-width: 800px;
    width: 90%;
    margin: 0 auto;
    padding: 4rem 1rem;
    text-align: center;
    background: transparent; /* Zdědí gradient z body */
}

#splash h1 {
    font-size: 2.5rem;
    margin-bottom: 1rem;
    line-height: 1.2;
}

#splash p {
    font-size: 1rem;
    opacity: 0.9;
    line-height: 1.6;
}

.btn {
    display: inline-block;
    padding: 0.75rem 1.5rem;
    background: var(--color-secondary);
    color: var(--color-text);
    border-radius: 4px;
    text-decoration: none;
    font-weight: 600;
    transition: transform 0.2s, opacity 0.2s;
}

.btn:hover {
    transform: translateY(-2px);
    opacity: 0.85;
}
/* ==============================================================================
     MAIN LAYOUT
     ============================================================================== */
main {
    flex: 1;
}

/* ==============================================================================
     GRID (ČLENOVÉ & VÝLETY)
     ============================================================================== */
.grid {
    display: grid;
    /* vytváří co nejvíc 250px sloupců, ale nikdy méně než 1fr */
    grid-template-columns: repeat(auto-fit, minmax(250px, 1fr));
    gap: 1.5rem;
    padding: 1.5rem;
    max-width: 1200px;
    margin: 0 auto;
}

/* ==============================================================================
     KARTY ČLENŮ & VÝLETŮ
     ============================================================================== */
.member-card,
.trip-card {
    background: var(--color-light);
    color: var(--color-primary);
    border-radius: 8px;
    padding: 1.5rem;
    text-align: center;
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.member-card:hover,
.trip-card:hover {
    transform: translateY(-6px) scale(1.02);
    box-shadow: 0 8px 20px rgba(0, 0, 0, 0.15);
}

.member-card img {
    width: 100%;
    max-width: 140px;
    border-radius: 50%;
    margin-bottom: 0.75rem;
}

.trip-card img {
    width: 100%;
    border-radius: 4px;
    margin-bottom: 0.75rem;
}

/* Detailní styly pro členy */
.member-card .member-name {
    margin: 0.5rem 0 0.25rem;
    font-size: 1.25rem;
    color: var(--color-primary);
}

.member-card .member-tagline {
    margin: 0;
    font-size: 1rem;
    font-weight: 500;
    color: var(--color-secondary);
    opacity: 0.9;
}

.member-card .member-bio {
    margin-top: 0.75rem;
    font-size: 0.9375rem;
    line-height: 1.4;
    color: #333;
    text-align: left;
}

/* ==============================================================================
     GALERIE (ACCORDION + MINIATURY)
     ============================================================================== */
.gallery {
    padding: 1.5rem;
    max-width: 1000px;
    margin: 0 auto;
    color: var(--color-secondary);
}

.gallery h1 {
    color: var(--color-text);
    margin-bottom: 1rem;
    text-align: center;
}

.gallery details {
    background: var(--color-light);
    border: 2px solid var(--color-secondary);
    border-radius: 6px;
    margin-bottom: 1rem;
    overflow: hidden;
}

.gallery summary {
    padding: 0.75rem 1rem;
    cursor: pointer;
    font-weight: 600;
    list-style: none;
}

.gallery summary::-webkit-details-marker {
    display: none;
}

.thumbs {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    padding: 0.75rem 1rem;
}

.thumbs img {
    width: calc(25% - 0.5rem);
    border-radius: 4px;
    object-fit: cover;
}

@media (max-width: 600px) {
    .thumbs img {
        width: calc(50% - 0.5rem);
    }
}

/* ==============================================================================
     FOOTER (sticky bottom)
     ============================================================================== */
.site-footer {
    position: fixed;
    bottom: 0;
    left: 0;
    width: 100%;
    background: var(--color-primary);
    color: var(--color-text);
    text-align: center;
    padding: 1rem 0;
    z-index: 1000;
    /* aby byl nad vším ostatním */
}


@media (min-width: 600px) {
    .grid {
        grid-template-columns: repeat(2, 1fr);
    }
}

/* ≥ 900 px → 3 sloupce */
@media (min-width: 900px) {
    .grid {
        grid-template-columns: repeat(3, 1fr);
    }
}

/* ≥ 1200 px → 4 sloupce */
@media (min-width: 1200px) {
    .grid {
        grid-template-columns: repeat(4, 1fr);
    }
}

@media (max-width: 599px) {
    .grid {
        grid-template-columns: 1fr;
    }
}

@media (max-width: 480px) {
    #hero, #splash {
      padding: 2rem 1rem;      /* méně vertikálního paddingu */
    }
    #hero .hero-content h1 {
      font-size: 1.75rem;      /* menší nadpisy */
    }
    #splash h1 {
      font-size: 2rem;
    }
    .hero-logo {
        width: 400px;
        margin-bottom: 1.5rem;
    }
  }


  /* meta řádek pod názvem */
.trip-meta {
    font-size: 0.85rem;
    color: var(--color-secondary);
    margin-bottom: 0.75rem;
  }
  
  /* galerie miniatur */
  .trip-gallery {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    margin-top: 1rem;
  }
  .trip-gallery img {
    width: calc(33.333% - 0.5rem);
    border-radius: 4px;
    object-fit: cover;
  }
  @media (max-width: 600px) {
    .trip-gallery img {
      width: calc(50% - 0.5rem);
    }
  }
  
  /* mapa nahoře na kartě */
  .trip-map {
    width: 100%;
    height: 160px;
    object-fit: cover;
    border-bottom: 2px solid var(--color-primary);
  }
  
  /* úprava popisku */
  .trip-desc {
    flex: 1;
    color: #333;
    margin-bottom: 1rem;
  }