/* --------------------------------------------------------------
   ROOT / THEME
-------------------------------------------------------------- */
:root{
    --bg-main: linear-gradient(135deg, rgba(251, 0, 255, 1) 0%, rgba(153, 0, 255, 1) 100%);
    --text-main: #ffffff;
    --text-soft: #f4eefe;
    --text-muted: #ece2f7;

    --accent: #ff4dff;
    --accent-hover: #ff1aff;
    --accent-dark: #0000009d;

    --nav-bg: rgba(100, 0, 100, 0.42);
    --footer-bg: rgba(27, 27, 27, 0.65);
    --card-bg: rgba(143, 255, 255, 0.18);
    --card-border: rgba(45, 111, 255, 0.55);

    --surface: rgba(255,255,255,0.08);
    --surface-strong: rgba(255,255,255,0.16);
    --border-light: rgba(255,255,255,0.18);

    --shadow-sm: 0 4px 14px rgba(0,0,0,.16);
    --shadow-md: 0 10px 28px rgba(0,0,0,.22);
    --shadow-lg: 0 16px 38px rgba(0,0,0,.28);

    --radius-sm: 10px;
    --radius-md: 16px;
    --radius-lg: 24px;
    --radius-pill: 999px;

    --transition-fast: .18s ease;
    --transition: .28s ease;

    --footer-height: 50px;
}

/* --------------------------------------------------------------
   ZÁKLADNÍ RESET & GLOBAL STYLY
-------------------------------------------------------------- */
*,
*::before,
*::after{
    box-sizing:border-box;
    margin:0;
    padding:0;
}

html{
    scroll-behavior:smooth;
}

html,
body{
    width:100%;
    max-width:100%;
    min-height:100%;
    overflow-x:hidden !important;
}

body{
    font-family:'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background:var(--bg-main);
    background-attachment:fixed;
    background-size:cover;
    background-position:center;
    background-repeat:no-repeat;
    color:var(--text-main);
    -webkit-font-smoothing:antialiased;
    -moz-osx-font-smoothing:grayscale;
    text-rendering:optimizeLegibility;
}

/* --------------------------------------------------------------
   TYPOGRAPHIE
-------------------------------------------------------------- */
h1,h2,h3,h4,h5,h6{
    color:#fafafa;
    margin-bottom:.6rem;
    line-height:1.2;
    font-weight:700;
    text-wrap:balance;
}

h1{font-size:clamp(2.2rem, 5vw, 2.8rem);}
h2{font-size:clamp(1.9rem, 4vw, 2.4rem);}
h3{font-size:clamp(1.6rem, 3vw, 2rem);}
h4{font-size:clamp(1.35rem, 2.5vw, 1.6rem);}
h5{font-size:clamp(1.2rem, 2vw, 1.4rem);}
h6{font-size:1.1rem;}

p{
    max-width:800px;
    margin:0 auto 1.2rem auto;
    line-height:1.7;
    color:var(--text-soft);
    text-wrap:pretty;
}

a{
    color:#ffd4ff;
    text-decoration:underline;
    text-decoration-color:rgba(255,255,255,.45);
    text-underline-offset:3px;
    transition:
            color var(--transition-fast),
            text-decoration-color var(--transition-fast),
            opacity var(--transition-fast);
}

a:hover{
    color:#ffffff;
    text-decoration-color:#ffffff;
}

/* --------------------------------------------------------------
   NAV WRAPPER ZÓNA
-------------------------------------------------------------- */
.nav-zone{
    position:fixed;
    top:0;
    left:0;
    width:100%;
    height:110px;
    z-index:1500;
    pointer-events:none;
}

/* horní aktivní zóna pro hover */
.nav-zone::before{
    content:"";
    position:absolute;
    top:0;
    left:0;
    width:100%;
    height:18px;
    pointer-events:auto;
}

/* --------------------------------------------------------------
   TRIGGER BUBLINA
-------------------------------------------------------------- */
.nav-trigger{
    position:absolute;
    top:8px;
    left:50%;
    transform:translateX(-50%);
    width:74px;
    height:18px;
    border-radius:999px;
    background:rgba(255,255,255,.18);
    border:1px solid rgba(255,255,255,.22);
    box-shadow:
            0 6px 16px rgba(0,0,0,.16),
            inset 0 1px 0 rgba(255,255,255,.08);
    backdrop-filter:blur(10px);
    -webkit-backdrop-filter:blur(10px);
    pointer-events:auto;
    cursor:pointer;
    transition:
            transform var(--transition),
            background var(--transition),
            box-shadow var(--transition),
            opacity var(--transition);
}

.nav-trigger::after{
    content:"";
    position:absolute;
    top:50%;
    left:50%;
    transform:translate(-50%, -50%);
    width:26px;
    height:4px;
    border-radius:999px;
    background:rgba(255,255,255,.82);
    box-shadow:
            0 7px 0 rgba(255,255,255,.55),
            0 -7px 0 rgba(255,255,255,.55);
    opacity:.9;
}

.nav-trigger:hover{
    background:rgba(255,255,255,.24);
    transform:translateX(-50%) scale(1.05);
    box-shadow:
            0 10px 24px rgba(0,0,0,.22),
            inset 0 1px 0 rgba(255,255,255,.1);
}

/* --------------------------------------------------------------
   NAVIGACE – OSTRŮVEK KTERÝ SE SCHOVÁVÁ
-------------------------------------------------------------- */
nav{
    position:absolute;
    top:14px;
    left:50%;
    transform:translateX(-50%) translateY(0);
    width:auto;
    max-width:calc(100% - 24px);
    min-height:64px;
    padding:10px 14px;
    display:flex;
    align-items:center;
    justify-content:center;
    gap:10px;
    flex-wrap:wrap;

    background:var(--nav-bg);
    backdrop-filter:blur(16px);
    -webkit-backdrop-filter:blur(16px);

    border:1px solid var(--border-light);
    border-radius:var(--radius-pill);
    box-shadow:
            0 10px 30px rgba(0,0,0,.22),
            inset 0 1px 0 rgba(255,255,255,.08);

    pointer-events:auto;
    transition:
            transform .35s ease,
            opacity .28s ease,
            box-shadow .25s ease;
    animation:navInitialShow .9s ease;
}

/* výchozí schovaný stav po animaci řeší hover */
.nav-zone:not(:hover) nav{
    transform:translateX(-50%) translateY(-92px);
    opacity:0;
    pointer-events:none;
}

/* když najedeš na horní zónu nebo trigger, nav vyjede */
.nav-zone:hover nav{
    transform:translateX(-50%) translateY(0);
    opacity:1;
    pointer-events:auto;
}

/* trigger se při hoveru trochu stáhne, aby nepřekážel */
.nav-zone:hover .nav-trigger{
    opacity:.25;
    transform:translateX(-50%) translateY(-6px) scale(.95);
}

nav a{
    display:inline-flex;
    align-items:center;
    justify-content:center;
    min-height:42px;
    padding:10px 20px;
    margin:0;

    background:linear-gradient(135deg, rgba(248, 1, 236, .98), rgba(170, 0, 255, .94));
    border:1px solid rgba(255,255,255,.12);
    border-radius:var(--radius-pill);

    color:#fff;
    font-size:16px;
    font-weight:700;
    text-decoration:none;

    box-shadow:0 6px 18px rgba(255,0,255,.16);
    transition:
            transform var(--transition-fast),
            background var(--transition-fast),
            box-shadow var(--transition-fast),
            opacity var(--transition-fast);
}

nav a:hover{
    transform:translateY(-2px);
    background:linear-gradient(135deg, rgba(255, 0, 238, 1), rgba(120, 0, 255, .96));
    box-shadow:0 10px 22px rgba(0,0,0,.24);
}

nav a:active{
    transform:translateY(0);
}

nav a:focus-visible{
    outline:2px solid rgba(255,255,255,.9);
    outline-offset:3px;
}

/* --------------------------------------------------------------
   PATIČKA
-------------------------------------------------------------- */
footer{
    position: relative; /* klidně tam může zůstat */
    width:100%;
    min-height:var(--footer-height);
    max-height:60px;
    padding:8px 14px;

    display:flex;
    align-items:center;
    justify-content:center;
    text-align:center;

    background-color:var(--footer-bg);
    backdrop-filter:blur(12px);
    -webkit-backdrop-filter:blur(12px);
    border-top:1px solid rgba(255,255,255,.12);

    font-size:15px;

    margin-top:auto; /* 🔥 TOTO ho posune dolů */
}

footer a{
    color:#fff;
}

/* --------------------------------------------------------------
   MAIN CONTENT
-------------------------------------------------------------- */
main{
    display:grid;
    justify-items:center;
    min-height:100vh;
    padding: 15px 0 0;
}

article{
    width:100%;
    max-width:1200px;
    text-align:center;
    padding:10px 0 40px;
}

/* --------------------------------------------------------------
   SCROLLBAR
-------------------------------------------------------------- */
::-webkit-scrollbar{
    width:9px;
}

::-webkit-scrollbar-track{
    background:#9100e6;
}

::-webkit-scrollbar-thumb{
    background:linear-gradient(180deg, #ff3cff, #d100ff);
    border-radius:999px;
}

::-webkit-scrollbar-thumb:hover{
    background:linear-gradient(180deg, #ff7aff, #e100ff);
}

/* --------------------------------------------------------------
   KARTY
-------------------------------------------------------------- */
.cards{
    width:100%;
    padding:20px;
    display:grid;
    grid-template-columns:repeat(auto-fit, minmax(250px, 1fr));
    gap:20px;
    align-items:stretch;
}

.card{
    background:var(--card-bg);
    width:100%;
    border:1px solid var(--card-border);
    border-radius:var(--radius-md);
    padding:18px;
    backdrop-filter:blur(14px);
    -webkit-backdrop-filter:blur(14px);
    box-shadow:var(--shadow-md);
    transition:
            transform var(--transition),
            box-shadow var(--transition),
            border-color var(--transition),
            background var(--transition);
}

.card:hover{
    transform:translateY(-6px) scale(1.015);
    box-shadow:var(--shadow-lg);
    border-color:rgba(255,255,255,.35);
    background:rgba(143,255,255,.24);
}

/* --------------------------------------------------------------
   POPOVER
-------------------------------------------------------------- */
div[popover]{
    position:fixed;
    top:50%;
    left:50%;
    transform:translate(-50%,-50%);
    width:min(92vw, 520px);
    background:rgba(17, 17, 17, .92);
    color:#fff;
    padding:24px;
    border-radius:var(--radius-md);
    border:1px solid rgba(255,255,255,.16);
    box-shadow:0 12px 32px rgba(0,0,0,.3);
    backdrop-filter:blur(18px);
    -webkit-backdrop-filter:blur(18px);
    z-index:2000;
    display:none;
}

div[popover][data-show]{
    display:block;
}

div[popover] .close-btn{
    position:absolute;
    top:10px;
    right:10px;
    width:36px;
    height:36px;
    background:transparent;
    border:none;
    border-radius:50%;
    font-size:20px;
    cursor:pointer;
    color:#aaa;
    transition:
            color var(--transition-fast),
            background var(--transition-fast),
            transform var(--transition-fast);
}

div[popover] .close-btn:hover{
    color:#fff;
    background:rgba(255,255,255,.08);
    transform:scale(1.05);
}

/* --------------------------------------------------------------
   TEXT HELPERS
-------------------------------------------------------------- */
.home-p,
.bot-p{
    max-width:680px;
    margin:0 auto 1.2rem;
}

.bot-p{
    color:#fff;
}

.bot-p a{
    color:#fff;
}

.plusy{
    color:chartreuse;
    font-weight:bold;
    font-size:20px;
}

.minusy{
    color:#f90505;
    font-weight:bold;
    font-size:20px;
}

/* --------------------------------------------------------------
   FORMULÁŘE
-------------------------------------------------------------- */
input,
textarea,
select,
button{
    font-family:inherit;
    font-size:1rem;
    padding:.75rem 1rem;
    margin:.4rem 0;
    border:1px solid rgba(255,255,255,.18);
    border-radius:12px;
    background:rgba(255,255,255,.1);
    color:#fff;
    transition:
            border-color var(--transition-fast),
            background var(--transition-fast),
            box-shadow var(--transition-fast),
            transform var(--transition-fast);
}

input::placeholder,
textarea::placeholder{
    color:rgba(255,255,255,.65);
}

input:focus,
textarea:focus,
select:focus,
button:focus{
    outline:none;
    border-color:#e100ff;
    background:rgba(255,255,255,.16);
    box-shadow:0 0 0 4px rgba(225, 0, 255, .18);
}

textarea{
    min-height:140px;
    resize:vertical;
}

button{
    cursor:pointer;
}

button.primary{
    background:linear-gradient(135deg, rgba(248, 1, 236, .98), rgba(170, 0, 255, .94));
    color:#fff;
    border:none;
    box-shadow:0 8px 20px rgba(255,0,255,.16);
}

button.primary:hover{
    background:linear-gradient(135deg, rgba(255, 0, 238, 1), rgba(120, 0, 255, .96));
    transform:translateY(-2px);
}

/* --------------------------------------------------------------
   OBRÁZKY / UTILITY
-------------------------------------------------------------- */
img{
    max-width:100%;
    height:auto;
    display:block;
}

::selection{
    background:rgba(255,255,255,.2);
    color:#fff;
}

/* --------------------------------------------------------------
   ANIMACE
-------------------------------------------------------------- */
@keyframes navInitialShow{
    0%{
        opacity:0;
        transform:translateX(-50%) translateY(-30px);
    }
    35%{
        opacity:1;
        transform:translateX(-50%) translateY(0);
    }
    70%{
        opacity:1;
        transform:translateX(-50%) translateY(0);
    }
    100%{
        opacity:1;
        transform:translateX(-50%) translateY(0);
    }
}

/* --------------------------------------------------------------
   RESPONSIVE
-------------------------------------------------------------- */
@media(max-width:768px){
    .nav-zone{
        height:128px;
    }

    .nav-trigger{
        top:8px;
        width:64px;
        height:16px;
    }

    nav{
        top:12px;
        max-width:calc(100% - 16px);
        padding:8px 10px;
        gap:8px;
        border-radius:24px;
    }

    nav a{
        font-size:14px;
        padding:9px 14px;
    }

    footer{
        font-size:14px;
    }

    .cards{
        grid-template-columns:1fr;
        padding:16px;
    }

    .card:hover{
        transform:translateY(-4px) scale(1.01);
    }
}

@media(max-width:480px){
    main{
        padding:70px 10px 80px;
    }

    article{
        padding:20px 0 30px;
    }

    h1{font-size:2rem;}
    h2{font-size:1.7rem;}
    h3{font-size:1.45rem;}

    p{
        font-size:.98rem;
    }

    nav{
        min-height:56px;
    }
}

@media(prefers-reduced-motion:reduce){
    *,
    *::before,
    *::after{
        animation:none !important;
        transition:none !important;
        scroll-behavior:auto !important;
    }
}