:root { color: #111; background: #f3f4f4; }
.font-pixel { font-family: "Pixelify Sans", "Press Start 2P", monospace; }
.eyebrow { margin: 0 0 .5rem; color: #ec8300; font-size: .75rem; font-weight: 800; letter-spacing: .12em; }
.card-placeholder { position: relative; display: grid; place-items: center; width: 100%; height: 100%; overflow: hidden; color: #fff; background: repeating-linear-gradient(135deg, rgb(255 255 255 / .1) 0 2px, transparent 2px 14px), #171717; }.card-placeholder::before { position: absolute; inset: 18px; border: 2px solid rgb(255 255 255 / .65); content: ""; transform: perspective(120px) rotateX(15deg); }.card-placeholder span { z-index: 1; max-width: 70%; padding: .2rem .45rem; border: 2px solid #fff; font-weight: 900; line-height: 1.05; text-align: center; }
.card-placeholder i { position: absolute; width: 20px; height: 20px; border: 2px solid rgb(255 255 255 / .65); border-radius: 50%; }.card-placeholder i:nth-of-type(1) { top: 28%; left: 20%; }.card-placeholder i:nth-of-type(2) { right: 18%; bottom: 25%; }.card-placeholder i:nth-of-type(3) { bottom: 15%; left: 42%; }
.subject-card:not(.has-image) { background: linear-gradient(155deg, var(--from), var(--to)); }
.card-overlay { display: none; }
/* Karta s obrázkom je jeden div: obrázok zarovnaný nahor na pozadí celej karty,
   cez celú kartu prekrýva gradient (plná farba dole, priehľadná smerom nahor)
   tak, aby bola spodná hrana obrázka úplne skrytá pod farbou a text čitateľný.
   Jediný pohyb pri hoveri je jemný zoom obrázka – karta samotná sa nehýbe. */
.subject-card.has-image .card-bg { position: absolute; top: 0; left: 0; width: 100%; height: 100%; object-fit: contain; object-position: top center; transform: scale(1); transition: transform .4s ease; }
.subject-card.has-image:hover .card-bg, .subject-card.has-image:focus-visible .card-bg { transform: scale(1.12); }
.subject-card.has-image .card-overlay { position: absolute; inset: 0; display: block; background: linear-gradient(to top, var(--from) 0%, var(--from) 42%, transparent 80%); }
.subject-card.has-image .card-copy { position: absolute; left: 0; right: 0; bottom: 0; z-index: 1; background: none; }
.card-copy { background: linear-gradient(135deg, var(--from), var(--to)); }
.subject-nav, .section-nav { display: flex; flex-wrap: wrap; gap: .25rem; max-width: 1048px; margin: 0 auto; padding: .5rem 2rem 0; }
.subject-nav a, .section-nav a { padding: .5rem .85rem; color: #222; font-size: .92rem; text-decoration: none; background: #eceeee; }
.subject-nav a:hover, .subject-nav a.active, .section-nav a:hover, .section-nav a.active { color: #fff; background: #ec8300; }
.subject-section { color: #fff; margin: 1.5rem auto 3rem; background: linear-gradient(155deg, var(--from), var(--to)); }
.subject-section h2 { margin-top: .25rem; }
.section-content { line-height: 1.6; }
.admin-body { min-height: 100vh; padding: 2rem; background: #e8eaeb; }.admin, .login { max-width: 1040px; margin: 0 auto; padding: 2rem; background: #fff; box-shadow: 0 8px 24px rgb(0 0 0 / .08); }.login { max-width: 440px; margin-top: 10vh; }.admin header { display: flex; align-items: center; justify-content: space-between; gap: 1rem; }.admin h1, .login h1 { font-size: 2rem; }
.admin-tabs { display: flex; gap: .35rem; margin: 1.5rem 0 0; border-bottom: 2px solid #e2e5e6; }.admin-tabs a { padding: .7rem 1.1rem; color: #444; font-weight: 700; text-decoration: none; border-bottom: 3px solid transparent; }.admin-tabs a:hover { color: #111; }.admin-tabs a.active { color: #ec8300; border-bottom-color: #ec8300; }
.admin-section { padding-top: 1.5rem; }.admin-section h2 { margin: 1.75rem 0 .75rem; font-size: 1.15rem; }.admin-section h2:first-child { margin-top: 0; }
.admin-card-list { display: grid; gap: .75rem; }
.admin-card-item { border: 1px solid #d7dcdf; background: #fafbfb; }
.admin-card-item summary { display: flex; align-items: center; gap: .6rem; padding: .85rem 1rem; cursor: pointer; font-weight: 700; list-style: none; }
.admin-card-item summary::-webkit-details-marker { display: none; }
.admin-card-item summary::before { content: '▸'; color: #888; }
.admin-card-item[open] summary::before { content: '▾'; }
.admin-card-item summary .muted { margin-left: -.2rem; color: #888; font-weight: 500; }
.admin-card-item summary .tag { padding: .1rem .5rem; color: #8a160e; font-size: .75rem; font-weight: 700; background: #fde6e3; }
.swatch { width: 20px; height: 20px; flex-shrink: 0; border-radius: 50%; }
.admin-card-item .card-form, .admin-card-item .inline-form { border-top: 1px solid #e2e5e6; border-left: 0; border-right: 0; border-bottom: 0; }
.inline-form { display: flex; align-items: center; justify-content: flex-end; padding: .75rem 1rem; }
.card-form label.full { grid-column: 1 / -1; }
.tw-color-picker { display: flex; flex-wrap: wrap; gap: .3rem; margin-top: .5rem; padding: .5rem; max-height: 160px; overflow-y: auto; background: #f5f6f6; border: 1px solid #e2e5e6; }
.tw-color-dot { width: 20px; height: 20px; padding: 0; border: 2px solid rgb(255 255 255 / .8); border-radius: 50%; box-shadow: 0 0 0 1px rgb(0 0 0 / .12); cursor: pointer; flex-shrink: 0; }
.tw-color-dot:hover { transform: scale(1.2); }
.tw-color-dot.is-selected { box-shadow: 0 0 0 2px #212121; }
.card-form textarea { width: 100%; padding: .6rem; border: 1px solid #aab2b6; font: inherit; resize: vertical; }
.btn-danger { background: #c0392b; }.btn-ghost { color: #212121; background: #fff; border: 1px solid #aab2b6; }
.card-form, .login form { display: grid; grid-template-columns: repeat(2, minmax(0, 1fr)); gap: 1rem; margin-top: 1.5rem; padding: 1.25rem; border: 1px solid #d7dcdf; }.login form { grid-template-columns: 1fr; }.card-form label, .login label { display: grid; gap: .35rem; font-weight: 700; }.card-form .checkbox { display: flex; align-items: center; gap: .5rem; } input, select { width: 100%; padding: .6rem; border: 1px solid #aab2b6; font: inherit; } button { padding: .6rem .9rem; border: 0; color: #fff; background: #212121; font: inherit; font-weight: 700; cursor: pointer; }.card-form button { align-self: end; }.form-error { padding: .75rem; color: #8a160e; background: #fde6e3; }
.form-success { padding: .75rem; color: #14532d; background: #dcfce7; margin-top: 1rem; }
#student-filter { width: 100%; padding: .6rem; border: 1px solid #aab2b6; font: inherit; }
.student-subjects-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(180px, 1fr)); gap: .4rem .75rem; }
.student-subjects-grid .checkbox { font-weight: 500; }
.admin-modal { max-width: 28rem; width: 90%; padding: 1.5rem; border: 1px solid #aab2b6; box-shadow: 0 1rem 2rem rgba(0, 0, 0, .15); }
.admin-modal::backdrop { background: rgba(0, 0, 0, .45); }
.admin-modal[open] { display: grid; gap: 1rem; }
.admin-modal p { margin: 0; font-weight: 600; }
.admin-modal button { justify-self: end; }
@media (max-width: 700px) { .card-form { grid-template-columns: 1fr; }.admin header { align-items: flex-start; flex-direction: column; }.admin-tabs { flex-wrap: wrap; } }
.blink-cursor { width: .55em; height: .8em; animation: cursor-blink 1s step-start infinite; }
@keyframes cursor-blink { 50% { opacity: 0; } }
/* Novinkový karusel na hlavnej stránke: slajdy s obrázkom na pozadí (voliteľné)
   a tmavým spodným gradientom pre čitateľnosť textu, riadené malým JS v app.js. */
.news-carousel { background: #18181b; }
.news-slide { background-color: #27272a; background-size: cover; background-position: center; }
.news-slide-scrim { background: linear-gradient(to top, rgb(0 0 0 / .78) 0%, rgb(0 0 0 / .35) 55%, transparent 100%); }
.news-slide-content :where(p) { margin: 0 0 .5rem; }
.news-slide-content :where(a) { color: #bef264; text-decoration: underline; }
.news-slide-content :where(strong, b) { font-weight: 800; }
.news-dot.is-active { background: #84cc16; }
/* Rozbaľovacie menu "Predmety" v hlavičke – na desktope sa zobrazuje ako
   dropdown pod tlačidlom, na mobile ako súčasť rozbaleného zoznamu menu. */
.nav-dropdown-menu { display: none; z-index: 60; }
.nav-dropdown.is-open .nav-dropdown-menu { display: block; }
@media (min-width: 768px) {
  .nav-dropdown-menu { border: 1px solid #e4e4e7; }
}