/* ====== PALETA BAREV ====== */

:root {

    --primary: #dce3ea;

    --secondary: #b8c4cf;

    --accent: #7a8fa3;

    --light: #ffffff;

    --bg: #f7f9fb;

    --text: #1e1e1e;

}



/* ====== BODY ====== */

html, body {

    height: 100%;

    margin: 0;

    padding: 0;

}



body {

    background: var(--bg);

    color: var(--text);

    font-family: "Segoe UI", Arial, sans-serif;

    line-height: 1.6;

    background-size: cover;

    background-position: center;

    background-attachment: fixed;

    display: flex;

    flex-direction: column;

    overflow-x: hidden;

}



/* ====== HEADER ====== */

header {

    background-image: url("../img/papers.jpg");

    background-size: cover;

    background-position: center;

    background-repeat: no-repeat;

    position: relative;

    color: var(--text);

    padding: 25px 20px 20px;

    display: flex;

    align-items: center;

    justify-content: space-between;

    border-bottom: 3px solid var(--secondary);

}



header::before {

    content: "";

    position: absolute;

    inset: 0;

    background-color: rgba(255, 255, 255, 0.3);

}



header * {

    position: relative;

    z-index: 1;

}



/* ====== LOGO ====== */

.logo img {

    max-height: 40px;

    width: auto;

}



.logo-link img {

    transition: transform 0.2s ease, opacity 0.2s ease;

}



.logo-link img:hover {

    transform: scale(1.05);

    opacity: 0.9;

}



/* ====== HAMBURGER ====== */

.menu-toggle {

    display: none;

    font-size: 28px;

    background: none;

    border: none;

    cursor: pointer;

}



/* ====== NAVIGACE ====== */

.nav-menu {

    display: flex;

    gap: 20px;

}



nav a {

    color: var(--text);

    text-decoration: none;

    margin-right: 30px;

    font-size: 17px;

    font-weight: 500;

    transition: color 0.2s ease;

}



nav a:hover {

    color: white;

}



/* ====== OBSAH ====== */

.content {

    flex: 1;

    width: 100%;

    max-width: 1200px;

    margin: 0 auto;

}



main {

    max-width: 900px;

    margin: 40px auto;

    padding: 0 20px;

    

}



section {

    background: white;

    padding: 35px;

    border-radius: 6px;

    border: 1px solid #d5d9dd;

    box-shadow: 0 2px 5px rgba(0,0,0,0.05);

    margin-bottom: 35px;

}



h2 {

    color: var(--text);

    font-size: 24px;

    margin-bottom: 15px;

    font-weight: 600;

}



main, section {

    width: 100%;

}



/* ====== BUTTONS ====== */

button, .btn {

    background: var(--secondary);

    color: var(--text);

    padding: 12px 22px;

    border: none;

    border-radius: 5px;

    font-size: 15px;

    cursor: pointer;

    transition: background 0.2s ease;

}



button:hover, .btn:hover {

    background: var(--primary);

}



/* ====== FORMS ====== */

input, textarea {

    width: 100%;

    padding: 12px;

    border: 1px solid #c7ccd1;

    border-radius: 5px;

    font-size: 15px;

    margin-bottom: 20px;

}



input:focus, textarea:focus {

    border-color: var(--secondary);

    outline: none;

}



/* ====== TABULKY ====== */

table {

    width: 100%;

    border-collapse: collapse;

    margin-top: 20px;

}



table th {

    background: var(--secondary);

    color: white;

    padding: 12px;

    text-align: left;

    font-weight: 600;

}



table td {

    padding: 12px;

    border-bottom: 1px solid var(--light);

}



table tr:hover td {

    background: #f0f2f4;

}



/* ====== FOOTER ====== */

footer {

    background-image: url("../img/papers.jpg");

    background-size: cover;

    background-position: center;

    color: var(--text);

    text-align: center;

    padding: 35px 20px;

    margin-top: 40px;

    font-size: 14px;

    border-top: 3px solid var(--secondary);

}



/* ====== MOBILNÍ VERZE ====== */

@media (max-width: 768px) {



    /* Header layout */

    header {

        flex-direction: row;

        justify-content: space-between;

        align-items: center;

        gap: 15px;

        position: relative;

        padding: 15px 20px;

    }



    /* Logo */

    .logo {

        z-index: 20;

    }



    /* Hamburger */

    .menu-toggle {

        display: block;

        z-index: 30;

    }

    .content,

    main,

    section {

        max-width: 100% !important;

        width: 100% !important;

        padding-left: 15px;

        padding-right: 15px;

        box-sizing: border-box;

    }



    /* Navigation menu */

    .nav-menu {

        position: absolute;

        top: 100%;          /* menu začne hned pod headerem */

        right: 0;

        width: 240px;

        box-sizing: border-box;

        background-color: var(--light);

        padding: 15px 0;

        border: 3px solid var(--secondary);

        display: none;

        flex-direction: column;

        gap: 5px;

        text-align: center;

        z-index: 999;       /* nad obsahem */

    }

    .nav-menu a {

    border-bottom: 1px solid var(--secondary);

    padding: 10px 20px;

}

.nav-menu a:hover {

    background-color: var(--secondary);

    color: var(--light);

}

    .nav-menu a:last-child {

    border-bottom: none; /* poslední položka bez linky */

}



    .nav-menu.open {

        display: flex;

    }



    header {

        position: relative; /* aby nav-menu mělo referenční bod */

    }



    /* Remove desktop margin */

    nav {

        margin-top: 0;

    }



    nav a {

        font-size: 15px;

        padding: 8px 12px;

        margin-right: 0;

    }

}



/* ====== SVG IKONY ====== */

.icon {

    width: 16px;

    height: 16px;

    fill: var(--primary);

    flex-shrink: 0;

}



@media (max-width: 768px) {

    .icon {

        width: 12px !important;

        height: 12px !important;

        flex-shrink: 0;

    }

.contact-item {

    display: flex;

    align-items: center;

    gap: 12px;

    margin: 12px 0;

    font-size: 16px;

}