/* =========================================================
   Normostrana.sk – základný štýl (minimalistický)
   ========================================================= */

:root {
    --bg:        #f6f7f9;
    --surface:   #ffffff;
    --surface-2: #f0f2f5;
    --border:    #e2e5ea;
    --text:      #1b1f27;
    --text-soft: #5b6472;
    --primary:   #2563eb;
    --primary-d: #1d4ed8;
    --ok:        #16a34a;
    --warn:      #d97706;
    --bad:       #dc2626;
    --radius:    12px;
    --shadow:    0 1px 3px rgba(16, 24, 40, .06), 0 1px 2px rgba(16, 24, 40, .04);
    --maxw:      980px;
    --font:      system-ui, -apple-system, "Segoe UI", Roboto, Arial, sans-serif;
}

html.dark {
    --bg:        #0f1420;
    --surface:   #171d2b;
    --surface-2: #1f2738;
    --border:    #2a3346;
    --text:      #e8ebf1;
    --text-soft: #9aa4b5;
    --primary:   #4f86ff;
    --primary-d: #3b73f0;
    --shadow:    none;
}

* { box-sizing: border-box; }

[hidden] { display: none !important; }

html { scroll-behavior: smooth; }

body {
    margin: 0;
    background: var(--bg);
    color: var(--text);
    font-family: var(--font);
    font-size: 16px;
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
}

.container {
    width: 100%;
    max-width: var(--maxw);
    margin: 0 auto;
    padding: 0 20px;
}

a { color: var(--primary); text-decoration: none; }
a:hover { text-decoration: underline; }

h1, h2, h3 { line-height: 1.25; font-weight: 700; }
h1 { font-size: 1.9rem; margin: .2em 0 .3em; }
h2 { font-size: 1.35rem; margin: 1.6em 0 .5em; }
h3 { font-size: 1.1rem; margin: 1.2em 0 .4em; }

.skip-link {
    position: absolute; left: -999px; top: 0;
    background: var(--primary); color: #fff; padding: 10px 16px; z-index: 100;
}
.skip-link:focus { left: 10px; }

/* ---------- Header ---------- */
.site-header {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 50;
}
.site-header__inner {
    display: flex; align-items: center; justify-content: space-between;
    gap: 16px; min-height: 60px;
}
.brand { display: flex; align-items: center; gap: 10px; font-weight: 700; color: var(--text); }
.brand:hover { text-decoration: none; }
.brand__mark {
    display: grid; place-items: center;
    width: 30px; height: 30px; border-radius: 8px;
    background: var(--primary); color: #fff; font-weight: 800;
}
.brand__name { font-size: 1.05rem; }

.site-nav { display: flex; align-items: center; gap: 6px; flex-wrap: wrap; }
.site-nav a {
    color: var(--text-soft); padding: 8px 10px; border-radius: 8px; font-size: .95rem;
}
.site-nav a:hover { background: var(--surface-2); text-decoration: none; color: var(--text); }
.site-nav a.active { color: var(--primary); background: var(--surface-2); }

.theme-toggle, .nav-toggle {
    background: var(--surface-2); border: 1px solid var(--border);
    border-radius: 8px; cursor: pointer; color: var(--text);
}
.theme-toggle { width: 38px; height: 38px; display: grid; place-items: center; font-size: 1rem; }
.nav-toggle { display: none; width: 40px; height: 38px; flex-direction: column; gap: 4px; align-items: center; justify-content: center; }
.nav-toggle span { width: 18px; height: 2px; background: var(--text); border-radius: 2px; }

/* ---------- Hero / intro ---------- */
.hero { text-align: center; padding: 28px 0 10px; }
.hero p { color: var(--text-soft); max-width: 640px; margin: 0 auto; font-size: 1.05rem; }

/* ---------- Karty / panely ---------- */
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 20px;
    margin: 18px 0;
}

/* ---------- Textové pole ---------- */
.editor textarea, textarea.field {
    width: 100%;
    min-height: 240px;
    resize: vertical;
    padding: 16px;
    font-size: 1rem;
    line-height: 1.6;
    color: var(--text);
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    font-family: var(--font);
}
textarea.field:focus, .editor textarea:focus,
input.field:focus, select.field:focus {
    outline: 2px solid var(--primary); outline-offset: 1px; border-color: var(--primary);
}
input.field, select.field {
    padding: 10px 12px; border: 1px solid var(--border); border-radius: 8px;
    background: var(--surface); color: var(--text); font-size: 1rem; font-family: var(--font);
}

/* ---------- Štatistiky ---------- */
.stats {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 12px;
    margin: 16px 0;
}
.stat {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 14px 16px;
}
.stat__value { font-size: 1.7rem; font-weight: 800; color: var(--primary); line-height: 1.1; }
.stat__label { font-size: .85rem; color: var(--text-soft); margin-top: 4px; }
.stat--wide { grid-column: 1 / -1; }

/* ---------- Tlačidlá ---------- */
.btn {
    display: inline-flex; align-items: center; gap: 8px;
    background: var(--primary); color: #fff; border: 1px solid var(--primary);
    padding: 9px 16px; border-radius: 8px; cursor: pointer;
    font-size: .95rem; font-weight: 600; font-family: var(--font);
}
.btn:hover { background: var(--primary-d); text-decoration: none; }
.btn--ghost { background: transparent; color: var(--text); border-color: var(--border); }
.btn--ghost:hover { background: var(--surface-2); }
.btn-row { display: flex; flex-wrap: wrap; gap: 10px; margin: 12px 0; }

/* ---------- Ovládacie prvky ---------- */
.controls { display: flex; flex-wrap: wrap; gap: 14px; align-items: end; }
.control label { display: block; font-size: .85rem; color: var(--text-soft); margin-bottom: 4px; }

/* ---------- Dlaždice nástrojov ---------- */
.tools-grid {
    display: grid; gap: 14px;
    grid-template-columns: repeat(auto-fill, minmax(230px, 1fr));
    margin: 16px 0;
}
.tool-tile {
    display: block; background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 16px; color: var(--text); box-shadow: var(--shadow);
}
.tool-tile:hover { text-decoration: none; border-color: var(--primary); transform: translateY(-1px); transition: .15s; }
.tool-tile__icon { font-size: 1.6rem; }
.tool-tile__title { font-weight: 700; margin: 6px 0 4px; }
.tool-tile__desc { color: var(--text-soft); font-size: .9rem; }

/* ---------- SEO náhľad ---------- */
.serp {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); padding: 18px; max-width: 600px;
    font-family: Arial, sans-serif;
}
.serp__url { color: var(--text-soft); font-size: 14px; }
.serp__title { color: #1a0dab; font-size: 20px; line-height: 1.3; margin: 2px 0; }
html.dark .serp__title { color: #8ab4f8; }
.serp__desc { color: #4d5156; font-size: 14px; line-height: 1.58; }
html.dark .serp__desc { color: var(--text-soft); }

.meter { height: 6px; background: var(--surface-2); border-radius: 4px; overflow: hidden; margin-top: 6px; }
.meter__fill { height: 100%; background: var(--ok); width: 0; transition: width .15s, background .15s; }
.meter__fill.warn { background: var(--warn); }
.meter__fill.bad  { background: var(--bad); }
.hint { font-size: .85rem; color: var(--text-soft); }
.hint.ok   { color: var(--ok); }
.hint.warn { color: var(--warn); }
.hint.bad  { color: var(--bad); }

/* ---------- SEO obsah (texty pod nástrojom) ---------- */
.prose { max-width: 760px; }
.prose p, .prose li { color: var(--text); }
.faq details {
    background: var(--surface); border: 1px solid var(--border);
    border-radius: 8px; padding: 10px 14px; margin: 8px 0;
}
.faq summary { cursor: pointer; font-weight: 600; }

/* ---------- Dvojstĺpec vstup/výstup ---------- */
.io-grid { display: grid; gap: 14px; grid-template-columns: 1fr 1fr; }
.io-grid label { display:block; font-size:.85rem; color: var(--text-soft); margin-bottom:4px; }
@media (max-width: 700px) { .io-grid { grid-template-columns: 1fr; } }

/* ---------- Tabuľka hustoty slov ---------- */
.kd-table { width: 100%; border-collapse: collapse; margin-top: 8px; }
.kd-table th, .kd-table td { text-align: left; padding: 7px 10px; border-bottom: 1px solid var(--border); }
.kd-table th { color: var(--text-soft); font-size: .85rem; }
.kd-table td:nth-child(2), .kd-table td:nth-child(3) { text-align: right; }

.checks { display: flex; flex-wrap: wrap; gap: 14px; margin: 10px 0; }
.checks label { display: flex; align-items: center; gap: 6px; color: var(--text); font-size: .92rem; }

/* ---------- Porovnanie textov (diff) ---------- */
.diff-box {
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
    font-size: .9rem; border: 1px solid var(--border); border-radius: 8px;
    overflow: auto; margin-top: 8px;
}
.diff-line { padding: 2px 10px; white-space: pre-wrap; word-break: break-word; }
.diff-add { background: rgba(22,163,74,.14); color: var(--ok); }
.diff-del { background: rgba(220,38,38,.14); color: var(--bad); }

/* ---------- Footer ---------- */
.site-footer { background: var(--surface); border-top: 1px solid var(--border); margin-top: 48px; }
.site-footer__inner {
    display: grid; gap: 24px; padding: 32px 20px;
    grid-template-columns: 2fr 1fr 1fr;
}
.site-footer__col { display: flex; flex-direction: column; gap: 6px; }
.site-footer__col strong { margin-bottom: 4px; }
.site-footer__col a { color: var(--text-soft); }
.site-footer__col p { color: var(--text-soft); margin: 4px 0 0; font-size: .9rem; }
.site-footer__bottom { padding: 14px 20px; border-top: 1px solid var(--border); color: var(--text-soft); font-size: .85rem; }

/* ---------- Cookie banner ---------- */
.cookie-banner {
    position: fixed; left: 16px; right: 16px; bottom: 16px; z-index: 80;
    max-width: 560px; margin: 0 auto;
    background: var(--surface); border: 1px solid var(--border);
    border-radius: var(--radius); box-shadow: 0 8px 30px rgba(0,0,0,.18);
    padding: 16px; display: flex; flex-wrap: wrap; gap: 12px; align-items: center; justify-content: space-between;
}
.cookie-banner[hidden] { display: none; }
.cookie-banner p { margin: 0; font-size: .9rem; flex: 1 1 240px; }
.cookie-banner__actions { display: flex; gap: 8px; }

/* ---------- Responzív ---------- */
@media (max-width: 760px) {
    .site-footer__inner { grid-template-columns: 1fr; }
    .nav-toggle { display: flex; }
    .site-nav {
        position: absolute; top: 60px; left: 0; right: 0;
        flex-direction: column; align-items: stretch;
        background: var(--surface); border-bottom: 1px solid var(--border);
        padding: 10px 16px; display: none;
    }
    .site-nav.open { display: flex; }
    .site-nav a { padding: 12px 10px; }
}