/* Efeta – spoločné štýly (PLAN.md, kap. 8.1). Mobilný návrh je prvoradý. */

:root {
    --pozadie: #edf1f5;
    --text: #263238;
    --karta: #ffffff;
    --popis: #546e7a;
    --okraj: #cfd8dc;
    --box: #f4f6f8;
    --zelena: #269447;
    --cervena: #c62828;
    --modra: #1976d2;
    --oranzova-pozadie: #fff3e0;
    --oranzova-text: #a84300;
}

* {
    box-sizing: border-box;
    -webkit-tap-highlight-color: transparent;
}

[hidden] {
    display: none !important;
}

html {
    -webkit-text-size-adjust: 100%;
}

body {
    margin: 0;
    padding: 12px;
    background: var(--pozadie);
    color: var(--text);
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    line-height: 1.35;
    overflow-wrap: anywhere;
}

/* ---------- rozloženie stránky ---------- */

.hlavicka,
.obsah,
.spojenie {
    max-width: 420px;
    margin-left: auto;
    margin-right: auto;
}

.hlavicka.stredny,
.obsah.stredny {
    max-width: 640px;
}

.hlavicka.siroky,
.obsah.siroky {
    max-width: 1400px;
}

.hlavicka {
    display: flex;
    align-items: center;
    gap: 8px;
    min-height: 48px;
    margin-bottom: 12px;
}

.hlavicka h1 {
    flex: 1;
    min-width: 0;
    margin: 0;
    font-size: 1.4rem;
}

.hlavicka nav {
    display: flex;
    gap: 8px;
}

.spat {
    display: flex;
    align-items: center;
    justify-content: center;
    flex: none;
    width: 48px;
    height: 48px;
    margin-left: -10px;
    border-radius: 12px;
    color: inherit;
}

.prihlasenie {
    margin-top: 8vh;
}

.prihlasenie h1 {
    margin: 0 0 8px;
    font-size: 1.6rem;
    text-align: center;
}

.logo {
    display: block;
    margin: 0 auto 8px;
}

/* ---------- karta ---------- */

.karta {
    display: block;
    width: 100%;
    margin-bottom: 12px;
    padding: 18px 16px;
    background: var(--karta);
    border-radius: 16px;
    box-shadow: 0 2px 12px rgba(0, 0, 0, 0.08);
}

.karta h2 {
    margin: 0 0 12px;
    font-size: 1.2rem;
}

a.karta {
    color: inherit;
    text-decoration: none;
    transition: box-shadow 0.15s ease, transform 0.1s ease;
}

a.karta:hover,
a.karta:focus-visible {
    box-shadow: 0 4px 18px rgba(0, 0, 0, 0.16);
    outline: none;
}

a.karta:active {
    transform: scale(0.98);
}

.mriezka {
    display: grid;
    grid-template-columns: minmax(0, 1fr);
    gap: 12px;
}

.mriezka .karta {
    margin-bottom: 0;
}

.zahlavie {
    display: flex;
    flex-wrap: wrap;
    align-items: baseline;
    justify-content: space-between;
    gap: 2px 10px;
}

.zahlavie h2 {
    margin: 0;
    font-size: 1.15rem;
}

/* ---------- hodnoty a stavy ---------- */

.hodnota {
    margin: 12px 0 4px;
    font-size: 3.2rem;
    font-weight: 800;
    line-height: 1.1;
    letter-spacing: -1px;
}

.stav {
    margin: 8px 0 16px;
    font-size: 1.1rem;
    font-weight: 600;
}

.mriezka .hodnota {
    font-size: 2.8rem;
}

.mriezka .stav {
    margin-bottom: 0;
    font-size: 1rem;
    font-weight: normal;
}

.zap {
    color: var(--zelena);
}

.vyp {
    color: var(--cervena);
}

/* posledné známe hodnoty zariadenia, ktoré je offline */
.neaktualne .hodnota,
.neaktualne .stav {
    opacity: 0.45;
}

.pripojenie {
    font-size: 0.85rem;
    color: var(--popis);
    white-space: nowrap;
}

.bodka {
    display: inline-block;
    width: 10px;
    height: 10px;
    margin-right: 6px;
    border-radius: 50%;
}

.bodka.online {
    background: var(--zelena);
}

.bodka.offline {
    background: var(--cervena);
}

.info {
    margin-bottom: 12px;
    padding: 8px 12px;
    background: var(--box);
    border-radius: 10px;
    font-size: 0.9rem;
}

.info div {
    margin-bottom: 3px;
}

/* ---------- pásy a hlásenia ---------- */

.alarmy,
.banner,
.spojenie {
    margin-top: 0;
    margin-bottom: 12px;
    padding: 10px 14px;
    border-radius: 12px;
    font-size: 0.95rem;
    font-weight: 600;
}

.alarmy {
    list-style: none;
    background: #fdecea;
    color: var(--cervena);
}

.alarmy li + li {
    margin-top: 4px;
}

.banner,
.spojenie {
    background: var(--oranzova-pozadie);
    color: var(--oranzova-text);
}

.spojenie {
    text-align: center;
}

.hlasenie {
    margin: 12px 0 0;
    font-size: 0.95rem;
    color: var(--popis);
}

.hlasenie.chyba {
    color: var(--cervena);
    font-weight: 600;
}

.hlasenie.ok {
    color: var(--zelena);
    font-weight: 600;
}

.poznamka,
.chyba-pola {
    margin: 6px 0 0;
    font-size: 0.85rem;
    color: var(--popis);
}

.chyba-pola {
    color: var(--cervena);
}

.stitok {
    font-size: 0.75rem;
    font-weight: bold;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    color: var(--zelena);
    white-space: nowrap;
}

/* ---------- formuláre ---------- */

label,
.popis {
    display: block;
    margin-top: 12px;
    font-size: 0.88rem;
    font-weight: bold;
    color: var(--popis);
    text-transform: uppercase;
    letter-spacing: 0.5px;
}

input,
select {
    width: 100%;
    height: 48px;
    margin-top: 6px;
    padding: 10px 14px;
    border: 1px solid var(--okraj);
    border-radius: 10px;
    background: #fafafa;
    color: inherit;
    font: inherit;
    font-size: 1.1rem;
}

input {
    -webkit-appearance: none;
    appearance: none;
}

input:focus,
select:focus {
    border-color: var(--modra);
    outline: none;
    background: #fff;
    box-shadow: 0 0 0 3px rgba(25, 118, 210, 0.18);
}

input[aria-invalid="true"] {
    border-color: var(--cervena);
}

/* ---------- tlačidlá ---------- */

.tlacidlo {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 100%;
    min-height: 50px;
    margin-top: 10px;
    padding: 0 14px;
    border: 0;
    border-radius: 12px;
    background: #455a64;
    color: #fff;
    font: inherit;
    font-size: 1rem;
    font-weight: bold;
    text-align: center;
    text-decoration: none;
    cursor: pointer;
    transition: opacity 0.15s ease, transform 0.1s ease;
}

.tlacidlo:active {
    transform: scale(0.98);
    opacity: 0.85;
}

.tlacidlo:focus-visible {
    outline: 3px solid rgba(25, 118, 210, 0.55);
    outline-offset: 2px;
}

.tlacidlo:disabled {
    opacity: 0.4;
    cursor: not-allowed;
    transform: none;
}

.ulozit  { background: #1976d2; margin-top: 16px; }
.auto    { background: #455a64; }
.rucne   { background: #7b1fa2; }
.zapnut  { background: #2e7d32; }
.vypnut  { background: #c62828; }

.vedlajsie {
    background: #fff;
    color: var(--text);
    border: 1px solid var(--okraj);
}

/* práve zvolený režim */
.tlacidlo[aria-pressed="true"] {
    outline: 3px solid var(--text);
    outline-offset: 2px;
}

.male {
    width: auto;
    min-height: 48px;
    margin-top: 0;
    font-size: 0.95rem;
    white-space: nowrap;
}

.dvojica {
    display: grid;
    grid-template-columns: 1fr 1fr;
    gap: 10px;
    margin-top: 10px;
}

.dvojica .tlacidlo {
    margin-top: 0;
}

/* ---------- zoznamy v správe ---------- */

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

.riadok {
    padding: 12px 0;
    border-top: 1px solid #e3e8ec;
}

.riadok:first-child {
    padding-top: 0;
    border-top: 0;
}

.akcie {
    display: flex;
    flex-wrap: wrap;
    gap: 8px;
    margin-top: 10px;
}

.akcie .tlacidlo {
    flex: 1 1 auto;
    padding: 0 8px;
    font-size: 0.88rem;
}

pre,
.kod {
    display: block;
    margin: 6px 0 0;
    padding: 12px;
    border-radius: 10px;
    font-family: ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;
}

pre {
    max-height: 320px;
    overflow: auto;
    background: #263238;
    color: #eceff1;
    font-size: 0.8rem;
    line-height: 1.4;
    white-space: pre;
    overflow-wrap: normal;
}

.kod {
    background: var(--box);
    font-size: 1rem;
    -webkit-user-select: all;
    user-select: all;
}

/* ---------- dialóg a oznamy ---------- */

.dialog {
    width: min(420px, calc(100% - 24px));
    padding: 18px 16px;
    border: 0;
    border-radius: 16px;
    color: inherit;
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.3);
}

.dialog::backdrop {
    background: rgba(38, 50, 56, 0.5);
}

.dialog p {
    margin: 0 0 6px;
    font-weight: 600;
}

.dialog .dvojica {
    margin-top: 16px;
}

.toasty {
    position: fixed;
    left: 12px;
    right: 12px;
    bottom: 16px;
    z-index: 10;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: 8px;
    pointer-events: none;
}

.toast {
    max-width: 420px;
    padding: 12px 16px;
    border-radius: 12px;
    background: #263238;
    color: #fff;
    font-weight: 600;
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.25);
}

.toast.chyba {
    background: var(--cervena);
}

.toast.ok {
    background: #2e7d32;
}

/* ---------- tablet a počítač ---------- */

@media (min-width: 600px) {
    .mriezka { grid-template-columns: repeat(2, minmax(0, 1fr)); }
}

@media (min-width: 960px) {
    .mriezka { grid-template-columns: repeat(3, minmax(0, 1fr)); }
}

@media (min-width: 1280px) {
    .mriezka { grid-template-columns: repeat(4, minmax(0, 1fr)); }
}