/* --- Základní reset a nastavení stránky --- */
* {
    box-sizing: border-box;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    background-color: #f4f4f5; 
    color: #333333; 
    text-align: center;
    margin: 0;
    padding: 20px;
}

.container {
    background: #ffffff; 
    padding: 40px;
    border-radius: 12px;
    box-shadow: 0 8px 24px rgba(0,0,0,0.08); 
    max-width: 600px;
    width: 100%;
    margin: 40px auto;
}

/* --- Loga --- */
.logo-container {
    margin-bottom: 20px;
    text-align: left;
}
.logo-container img {
    max-width: 240px;
    height: auto;
    display: block;
}

.roboclash-logo {
    margin-bottom: 30px;
    text-align: center;
}
.roboclash-logo img {
    max-width: 280px; 
    height: auto;
    display: block;
    margin: 0 auto;
}

/* --- Typografie a obsah --- */
h1 {
    font-size: 2.2em;
    color: #1a202c; 
    margin-bottom: 15px;
    line-height: 1.2;
}

h2 {
    font-size: 1.6em;
    color: #2d3748;
    margin-bottom: 20px;
    border-bottom: 2px solid #e2e8f0;
    padding-bottom: 10px;
}

h3 {
    font-size: 1.2em;
    color: #4a5568;
    margin-bottom: 10px;
}

p {
    font-size: 1.1em;
    line-height: 1.6;
    color: #4a5568;
    margin-bottom: 25px;
}

/* --- Registrace a Alert box --- */
.registration-alert {
    background-color: #ebf8ff;
    border: 2px solid #63b3ed;
    border-radius: 10px;
    padding: 20px;
    margin: 30px 0;
    text-align: center;
}

.alert-text {
    font-size: 1.2em;
    font-weight: bold;
    color: #2b6cb0;
    margin-bottom: 15px;
}

.btn-register {
    display: inline-block;
    background-color: #3182ce;
    color: #ffffff;
    padding: 12px 24px;
    border-radius: 8px;
    text-decoration: none;
    font-weight: bold;
    font-size: 1.1em;
    transition: background-color 0.3s;
}

.btn-register:hover {
    background-color: #2b6cb0;
}

.deadline-text {
    margin-top: 15px;
    font-size: 0.9em;
    color: #4a5568;
    font-weight: bold;
}

/* --- Tlačítko pro stažení pravidel --- */
.rules-download {
    text-align: center;
    margin: 20px 0 35px 0;
}

.btn-download {
    display: inline-block;
    padding: 12px 24px;
    background-color: #2c3e50;
    color: #ffffff;
    text-decoration: none;
    border-radius: 8px;
    font-weight: bold;
    transition: background-color 0.3s ease;
}

.btn-download:hover {
    background-color: #1a252f;
}

/* --- Datumovka --- */
.date-box {
    font-size: 1.6em;
    font-weight: bold;
    color: #2c5282; 
    background-color: #ebf8ff; 
    border: 2px dashed #90cdf4; 
    padding: 15px 30px;
    border-radius: 8px;
    display: inline-block;
    margin-bottom: 30px;
}

/* --- Disciplíny --- */
.disciplines-section {
    text-align: left;
    margin-bottom: 40px;
}

.disciplines-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr); 
    gap: 15px; 
}

.discipline-card {
    background-color: #f7fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 15px; 
    position: relative;
    text-align: center; 
}

.card-icon {
    width: 40px;
    height: 40px;
    color: #4299e1;
    margin-bottom: 10px;
    display: inline-block; 
}

.variants-list {
    margin: 0;
    padding: 0; 
    list-style: none; 
    color: #4a5568;
    display: inline-block; 
    text-align: left; 
}

.variants-list li {
    margin-bottom: 5px;
}

/* --- Harmonogram --- */
.schedule-section {
    text-align: left;
    margin-bottom: 40px;
}

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

.schedule-list li {
    display: flex;
    justify-content: space-between;
    padding: 12px 0;
    border-bottom: 1px solid #e2e8f0;
    color: #4a5568;
}

.schedule-list li:last-child {
    border-bottom: none;
}

.schedule-time {
    font-weight: bold;
    color: #2d3748;
}

/* --- Občerstvení --- */
.food-section {
    text-align: left;
    margin-bottom: 40px;
}

.food-card {
    background-color: #f7fafc;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 20px;
}

.food-card p {
    margin-bottom: 15px;
    color: #4a5568;
}

.payment-info {
    background-color: #e6fffa;
    color: #285e61;
    padding: 12px;
    border-radius: 6px;
    border: 1px solid #b2f5ea;
    font-weight: 500;
}

/* --- Sponzoři --- */
.sponsors-section {
    text-align: left;
    margin-bottom: 40px;
}

.sponsors-grid {
    display: grid;
    grid-template-columns: repeat(4, 1fr); /* 4 sloupce pro PC a tablety */
    gap: 15px;
}

.sponsor-card {
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
    border-radius: 8px;
    padding: 10px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-weight: 600;
    font-size: 0.9em;
    color: #4a5568;
    text-align: center;
    min-height: 70px;
    transition: transform 0.2s, box-shadow 0.2s;
    box-shadow: 0 2px 4px rgba(0,0,0,0.02);
}

.sponsor-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(0,0,0,0.06);
    border-color: #cbd5e0;
}

/* --- Místo konání a Mapa --- */
.location-section {
    text-align: left;
    margin-bottom: 40px;
}

.address {
    font-size: 1.1em;
    color: #4a5568;
    margin-bottom: 15px;
    line-height: 1.5;
}

.parking-info {
    background-color: #f0fff4;
    color: #2f855a;
    padding: 12px;
    border-radius: 6px;
    margin-bottom: 20px;
	margin-top: 20px;
    border: 1px solid #c6f6d5;
}

.map-container {
    position: relative;
    padding-bottom: 56.25%; /* 16:9 poměr stran */
    height: 0;
    overflow: hidden;
    border-radius: 8px;
    margin-bottom: 15px;
    background-color: #e2e8f0;
}

.map-container iframe {
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    border: 0;
}

.btn-map {
    display: block;
    text-align: center;
    background-color: #edf2f7;
    color: #4a5568;
    padding: 12px;
    border-radius: 6px;
    text-decoration: none;
    font-weight: bold;
    transition: background-color 0.3s;
}

.btn-map:hover {
    background-color: #e2e8f0;
}

/* --- Kontakty --- */
.contact-info {
    text-align: left;
    background-color: #f7fafc;
    padding: 20px;
    border-radius: 8px;
    margin-bottom: 30px;
    border: 1px solid #e2e8f0;
}

.contact-info a {
    color: #3182ce;
    text-decoration: none;
    font-weight: bold;
}

.contact-info a:hover {
    text-decoration: underline;
}

.btn-whatsapp {
    display: inline-block;
    margin-top: 15px;
    background-color: #25D366;
    color: white !important;
    padding: 10px 20px;
    border-radius: 6px;
    text-decoration: none !important;
    font-weight: bold;
    transition: background-color 0.3s;
}

.btn-whatsapp:hover {
    background-color: #128C7E;
}

/* --- Patička a info texty --- */
.notice {
    font-size: 0.9em;
    color: #718096;
    margin-top: 30px;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
}

.last-updated {
    margin-top: 15px;
    font-size: 0.85em;
    color: #999999;
    font-weight: bold;
}

.copyright {
    margin-top: 20px;
    font-size: 0.85em;
    color: #999999;
}

/* --- RESPONZIVNÍ VERZE PRO MOBILNÍ ZAŘÍZENÍ --- */
@media (max-width: 768px) {
    body {
        padding: 0; 
        background-color: #ffffff; 
    }
    
    .container {
        padding: 25px 15px; 
        margin: 0; 
        border-radius: 0; 
        box-shadow: none; 
        max-width: 100%;
    }
    
    h1 {
        font-size: 1.8em; 
    }

    p {
        font-size: 1.15em; 
    }
    
    .logo-container img {
        max-width: 180px; 
    }
    
    .roboclash-logo img {
        max-width: 240px; 
    }

    .disciplines-grid {
        grid-template-columns: 1fr; 
        gap: 20px; 
    }

    .discipline-card {
        padding: 20px; 
        text-align: left; 
    }

    .card-icon {
        margin-bottom: 15px;
        display: block; 
    }

    .variants-list {
        padding-left: 20px; 
        list-style: none; 
    }

    .date-box {
        font-size: 1.4em; 
        padding: 12px 15px;
        width: 100%;
        box-sizing: border-box;
    }
    
    .schedule-list li {
        flex-direction: column;
        gap: 5px;
    }
	
    .sponsors-grid {
        grid-template-columns: repeat(2, 1fr); /* 2 sloupce na mobilu */
        gap: 10px;
    }
}

.registration-alert.closed {
    display: block;
    background-color: #edf2f7; /* Světle šedá */
    border-color: #cbd5e0;     /* Šedý okraj */
}

.registration-alert.closed .alert-text {
    color: #4a5568;
}

/* --- Tabulky výsledků --- */
.table-responsive {
    overflow-x: auto;
    margin-bottom: 30px;
    border-radius: 8px;
    box-shadow: 0 4px 6px rgba(0,0,0,0.05);
    background-color: #ffffff;
    border: 1px solid #e2e8f0;
}

table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
    min-width: 500px; /* Zajišťuje posun na velmi malých displejích */
}

th, td {
    padding: 12px 15px;
    border-bottom: 1px solid #e2e8f0;
}

th {
    background-color: #f7fafc;
    color: #2d3748;
    font-weight: bold;
    text-transform: uppercase;
    font-size: 0.85em;
    letter-spacing: 0.05em;
}

tr:last-child td {
    border-bottom: none;
}

tr:hover td {
    background-color: #edf2f7;
}

/* Zvýraznění medailových pozic pro lepší přehlednost */
tr.gold td { background-color: #fffaf0; font-weight: bold; color: #b7791f; } 
tr.silver td { background-color: #f8f9fa; font-weight: bold; color: #4a5568; }
tr.bronze td { background-color: #fff5f5; font-weight: bold; color: #c53030; }

/* --- Sekce sponzorů --- */
.sponsors-section {
    margin: 40px 0;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
    text-align: center;
}

.sponsors-section h2 {
    font-size: 1.2em;
    color: #718096;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 20px;
}

.sponsors-logo {
    max-width: 60%; /* Obrázek zabere jen 60 % šířky kontejneru */
    height: auto;
    display: block;
    margin: 0 auto; /* Zajistí vycentrování */
    filter: grayscale(100%);
    opacity: 0.7;
    transition: all 0.3s ease;
}

.sponsors-logo:hover {
    filter: grayscale(0%);
    opacity: 1;
}

/* --- Sekce partnerů a sponzorů --- */
.partners-container {
    margin: 40px 0;
    padding-top: 20px;
    border-top: 1px solid #e2e8f0;
    text-align: center;
}

.partners-container h2 {
    font-size: 1.1em;
    color: #718096;
    text-transform: uppercase;
    letter-spacing: 0.1em;
    margin-bottom: 20px;
}

.partner-logo {
    display: block;
    margin: 0 auto 30px auto;
    max-width: 200px; /* Zde jsme snížili hodnotu z 350px na 200px */
    height: auto;
    filter: grayscale(100%);
    opacity: 0.7;
    transition: all 0.3s ease;
}

.partner-logo:hover {
    filter: grayscale(0%);
    opacity: 1;
}