/* ================= DEFINICE BAREV Z LOGA ================= */
:root {
    /* Tmavě modrá z knihy/textu v logu */
    --cuas-primary: #0e2a47;
    /* Světlejší verze pro pozadí */
    --cuas-primary-light: #e6efff;

    /* Zelená z listů v logu */
    --cuas-secondary: #2ca05a;
    /* Světlejší verze pro pozadí ikon */
    --cuas-secondary-light: #eafaf1;

    /* Písma */
    --font-serif: 'Merriweather', serif;
    --font-sans: 'Open Sans', sans-serif;
}

body {
    font-family: var(--font-sans);
    color: #444;
    line-height: 1.7;
}

/* ================= TYPOGRAFIE ================= */
h1, h2, h3, h4, h5, h6, .font-serif {
    font-family: var(--font-serif);
}

.text-primary-cuas {
    color: var(--cuas-primary) !important;
}

.text-cuas-secondary {
    color: var(--cuas-secondary) !important;
}

.fw-bold {
    font-weight: 700 !important;
}

.ls-2 {
    letter-spacing: 2px;
}

/* ================= NAVIGACE ================= */
.navbar {
    transition: all 0.3s ease;
}

.navbar-brand img {
    /* Mix-blend-mode pomůže, pokud logo nemá průhledné pozadí, ale ideální je PNG bez pozadí */
    mix-blend-mode: multiply;
}

.nav-link {
    color: var(--cuas-primary) !important;
    font-weight: 600;
    transition: color 0.3s ease;
}

.nav-link:hover {
    color: var(--cuas-secondary) !important;
}

/* ================= HERO SEKCE ================= */
.hero-section {
    /* Obrázek pozadí z assets.synaria.cloud */
    background: url('https://assets.synaria.cloud/bg/vzdelani.webp') no-repeat center center/cover;
    min-height: 85vh;
    position: relative;
}

.hero-section::before {
    content: "";
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    /* Tmavě modrý překryv pro čitelnost textu */
    background: linear-gradient(to right, rgba(14, 42, 71, 0.9), rgba(14, 42, 71, 0.6));
    z-index: 1;
}

/* ================= TLAČÍTKA ================= */
.btn-primary-cuas {
    background-color: var(--cuas-secondary);
    border-color: var(--cuas-secondary);
    color: white;
    transition: all 0.3s ease;
}

.btn-primary-cuas:hover {
    background-color: #248a4c;
    border-color: #248a4c;
    color: white;
    transform: translateY(-2px);
    box-shadow: 0 5px 15px rgba(44, 160, 90, 0.3);
}

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

.btn-outline-primary-cuas:hover {
    background-color: var(--cuas-primary);
    color: white;
}

/* ================= SEKCE A KARTY ================= */
.section-padding {
    padding-top: 80px;
    padding-bottom: 80px;
}

.bg-primary-cuas-light { background-color: var(--cuas-primary-light); }
.bg-success-light { background-color: var(--cuas-secondary-light); }

.hover-lift {
    transition: transform 0.3s ease, box-shadow 0.3s ease;
}

.hover-lift:hover {
    transform: translateY(-5px);
    box-shadow: 0 10px 20px rgba(0,0,0,0.08) !important;
}

.border-top-cuas-secondary {
    border-top: 4px solid var(--cuas-secondary) !important;
}

/* ================= OSTATNÍ ================= */
.hover-white:hover {
    color: white !important;
}

.bg-primary-cuas {
    background-color: var(--cuas-primary) !important;
}