/* ============================================================
   Soft UI Evolution — motyw aplikacji Konkursy
   Light + dark (sterowane atrybutem data-theme na <html>).
   Bootstrap 5.3 recoloring przez nadpisanie zmiennych --bs-*.
   ============================================================ */

:root {
    /* — promienie / ruch / typografia — */
    --kk-radius: 10px;
    --kk-radius-sm: 8px;
    --kk-anim: 240ms;
    --kk-ease: cubic-bezier(.22, .61, .36, 1);
    --kk-font-ui: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
    --kk-font-mono: "JetBrains Mono", ui-monospace, SFMono-Regular, Menlo, Consolas, monospace;

    /* — paleta jasna (pastele o lepszym kontraście, WCAG AA) — */
    --kk-bg: #eef2f7;
    --kk-surface: #ffffff;
    --kk-surface-2: #f5f8fc;
    --kk-text: #1f2733;          /* off-black, nie #000 */
    --kk-text-muted: #5b6675;
    --kk-border: #e2e8f1;

    --kk-accent: #2d7db5;         /* Soft Blue dociągnięty do AA na tekst/link */
    --kk-accent-strong: #246a9c;
    --kk-accent-soft: #d8edf8;    /* pastelowe wypełnienie */
    --kk-pink: #c95f86;
    --kk-pink-soft: #ffe1ea;
    --kk-green: #2f8f5b;
    --kk-green-soft: #d6f0df;
    --kk-orange: #c4711f;
    --kk-orange-soft: #fce7cf;
    --kk-gray: #6b7686;
    --kk-gray-soft: #e7ecf3;

    /* — miękkie cienie (mocniejsze niż flat, subtelniejsze niż neumorfizm) — */
    --kk-shadow: 0 1px 2px rgba(31, 39, 51, .04), 0 2px 12px rgba(31, 39, 51, .06);
    --kk-shadow-lift: 0 2px 4px rgba(31, 39, 51, .06), 0 8px 24px rgba(31, 39, 51, .10);
    --kk-shadow-inset: inset 0 0 0 1px var(--kk-border);
}

:root[data-theme="dark"] {
    --kk-bg: #151a21;
    --kk-surface: #1e252f;
    --kk-surface-2: #232b37;
    --kk-text: #e7ecf3;
    --kk-text-muted: #9aa6b6;
    --kk-border: #2d3744;

    --kk-accent: #6bb8e0;
    --kk-accent-strong: #8ccbef;
    --kk-accent-soft: #1f3a4d;
    --kk-pink: #e993b1;
    --kk-pink-soft: #3d2630;
    --kk-green: #74c79a;
    --kk-green-soft: #1f3a2c;
    --kk-orange: #e0a463;
    --kk-orange-soft: #3a2e1c;
    --kk-gray: #9aa6b6;
    --kk-gray-soft: #2a323d;

    --kk-shadow: 0 1px 2px rgba(0, 0, 0, .3), 0 2px 12px rgba(0, 0, 0, .4);
    --kk-shadow-lift: 0 2px 4px rgba(0, 0, 0, .35), 0 8px 24px rgba(0, 0, 0, .5);
    --kk-shadow-inset: inset 0 0 0 1px var(--kk-border);
}

/* — most do zmiennych Bootstrapa, by komponenty BS przejęły paletę — */
:root {
    --bs-body-bg: var(--kk-bg);
    --bs-body-color: var(--kk-text);
    --bs-border-color: var(--kk-border);
    --bs-primary: var(--kk-accent);
    --bs-link-color: var(--kk-accent);
    --bs-link-hover-color: var(--kk-accent-strong);
    --bs-border-radius: var(--kk-radius);
    --bs-emphasis-color: var(--kk-text);
}

/* ============================================================
   Baza
   ============================================================ */
body {
    background: var(--kk-bg);
    color: var(--kk-text);
    font-family: var(--kk-font-ui);
    line-height: 1.6;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, .fw-bold { letter-spacing: -.01em; }

a { color: var(--kk-accent); text-decoration: none; }
a:hover { color: var(--kk-accent-strong); text-decoration: underline; }

code, kbd, .kk-mono, .text-monospace { font-family: var(--kk-font-mono); }

/* Widoczny focus (WCAG) na wszystkim interaktywnym */
a:focus-visible,
button:focus-visible,
.btn:focus-visible,
.form-control:focus-visible,
.form-select:focus-visible,
.nav-link:focus-visible {
    outline: 2px solid var(--kk-accent);
    outline-offset: 2px;
    box-shadow: none;
}

/* ============================================================
   Navbar
   ============================================================ */
.kk-nav,
.navbar.kk-nav {
    background: var(--kk-surface) !important;
    border-bottom: 1px solid var(--kk-border);
    box-shadow: var(--kk-shadow);
}
.kk-nav .navbar-brand { color: var(--kk-accent) !important; }
.kk-nav .nav-link {
    color: var(--kk-text-muted) !important;
    font-weight: 500;
    border-radius: var(--kk-radius-sm);
    padding: .35rem .6rem;
    transition: background var(--kk-anim) var(--kk-ease), color var(--kk-anim) var(--kk-ease);
}
.kk-nav .nav-link:hover { color: var(--kk-text) !important; background: var(--kk-surface-2); }
.kk-nav .nav-link.active { color: var(--kk-accent) !important; background: var(--kk-accent-soft); }
.kk-nav .navbar-text { color: var(--kk-text-muted) !important; }

.kk-theme-toggle {
    background: transparent;
    border: 1.5px solid var(--kk-border);
    color: var(--kk-text-muted);
    border-radius: var(--kk-radius-sm);
    width: 2.1rem; height: 2.1rem;
    display: inline-flex; align-items: center; justify-content: center;
    transition: all var(--kk-anim) var(--kk-ease);
}
.kk-theme-toggle:hover { color: var(--kk-accent); border-color: var(--kk-accent); }

/* ============================================================
   Karty
   ============================================================ */
.kk-card,
.card {
    background: var(--kk-surface);
    color: var(--kk-text);
    border: 1px solid var(--kk-border);
    border-radius: var(--kk-radius);
    box-shadow: var(--kk-shadow);
    transition: box-shadow var(--kk-anim) var(--kk-ease), transform var(--kk-anim) var(--kk-ease);
}
a.kk-card:hover,
.kk-card-hover:hover {
    box-shadow: var(--kk-shadow-lift);
    transform: translateY(-2px);
}

.kk-stat {
    font-family: var(--kk-font-mono);
    font-size: 2rem;
    font-weight: 700;
    letter-spacing: -.02em;
    color: var(--kk-text);
}

/* ============================================================
   Przyciski
   ============================================================ */
.btn {
    border-radius: var(--kk-radius-sm);
    font-weight: 600;
    transition: all var(--kk-anim) var(--kk-ease);
}
.btn-primary {
    background: var(--kk-accent);
    border-color: var(--kk-accent);
    color: #fff;
    box-shadow: var(--kk-shadow);
}
.btn-primary:hover {
    background: var(--kk-accent-strong);
    border-color: var(--kk-accent-strong);
    box-shadow: var(--kk-shadow-lift);
}
.btn-primary:active { transform: translateY(1px); }

.btn-outline-primary,
.btn-outline-secondary,
.btn-outline-light {
    border-width: 1.5px;
}
.btn-outline-primary { color: var(--kk-accent); border-color: var(--kk-accent); }
.btn-outline-primary:hover { background: var(--kk-accent-soft); color: var(--kk-accent-strong); border-color: var(--kk-accent); }

.btn-success { background: var(--kk-green); border-color: var(--kk-green); }
.btn-success:active { transform: translateY(1px); }

/* ============================================================
   Formularze
   ============================================================ */
.form-label { font-weight: 500; color: var(--kk-text); margin-bottom: .35rem; }
.form-control, .form-select {
    background: var(--kk-surface);
    color: var(--kk-text);
    border: 1px solid var(--kk-border);
    border-radius: var(--kk-radius-sm);
    transition: border-color var(--kk-anim) var(--kk-ease), box-shadow var(--kk-anim) var(--kk-ease);
}
.form-control:focus, .form-select:focus {
    background: var(--kk-surface);
    color: var(--kk-text);
    border-color: var(--kk-accent);
    outline: 2px solid var(--kk-accent);
    outline-offset: 2px;
    box-shadow: none;
}
.form-control::placeholder { color: var(--kk-text-muted); opacity: .7; }

/* ============================================================
   Odznaki / statusy
   ============================================================ */
.badge { font-weight: 600; border-radius: 999px; padding: .35em .7em; }

.badge-status-NOWE        { background: var(--kk-gray-soft);   color: var(--kk-text); }
.badge-status-ROZWIAZANE  { background: var(--kk-accent-soft); color: var(--kk-accent-strong); }
.badge-status-W_TRENINGU  { background: var(--kk-orange-soft); color: var(--kk-orange); }
.badge-status-OPANOWANE   { background: var(--kk-green-soft);  color: var(--kk-green); }

/* ============================================================
   Zdjęcia
   ============================================================ */
.task-photo {
    max-width: 100%;
    border-radius: var(--kk-radius-sm);
    border: 1px solid var(--kk-border);
    box-shadow: var(--kk-shadow);
    cursor: zoom-in;
}
.attempt-photo {
    max-width: 180px;
    border-radius: var(--kk-radius-sm);
    border: 1px solid var(--kk-border);
    cursor: zoom-in;
}

/* ============================================================
   Treść Markdown / LaTeX
   ============================================================ */
.md-content { line-height: 1.6; color: var(--kk-text); }
.md-content table { border-collapse: collapse; margin: .5rem 0; }
.md-content td, .md-content th {
    border: 1px solid var(--kk-border);
    padding: .25rem .5rem;
}

/* ============================================================
   Boksy wskazówek / rozwiązania
   ============================================================ */
.hint-box {
    border-left: 4px solid var(--kk-accent);
    background: var(--kk-accent-soft);
    color: var(--kk-text);
    border-radius: 0 var(--kk-radius-sm) var(--kk-radius-sm) 0;
    padding: .75rem 1rem;
    margin-bottom: .75rem;
}
.solution-box {
    border-left: 4px solid var(--kk-green);
    background: var(--kk-green-soft);
    color: var(--kk-text);
    border-radius: 0 var(--kk-radius-sm) var(--kk-radius-sm) 0;
    padding: .75rem 1rem;
}

/* ============================================================
   Alerty
   ============================================================ */
.alert { border-radius: var(--kk-radius); border: 1px solid var(--kk-border); }
.alert-success { background: var(--kk-green-soft); color: var(--kk-green); }
.alert-danger  { background: var(--kk-pink-soft);  color: var(--kk-pink); }

/* ============================================================
   Animacje wejścia (tylko transform/opacity)
   ============================================================ */
@media (prefers-reduced-motion: no-preference) {
    .kk-enter {
        animation: kkFadeUp 420ms var(--kk-ease) both;
    }
    /* kaskada dla list kart: 80ms odstępu */
    .kk-stagger > * { animation: kkFadeUp 420ms var(--kk-ease) both; }
    .kk-stagger > *:nth-child(1) { animation-delay: 0ms; }
    .kk-stagger > *:nth-child(2) { animation-delay: 80ms; }
    .kk-stagger > *:nth-child(3) { animation-delay: 160ms; }
    .kk-stagger > *:nth-child(4) { animation-delay: 240ms; }
    .kk-stagger > *:nth-child(5) { animation-delay: 320ms; }
    .kk-stagger > *:nth-child(6) { animation-delay: 400ms; }
    .kk-stagger > *:nth-child(n+7) { animation-delay: 480ms; }
}
@keyframes kkFadeUp {
    from { opacity: 0; transform: translateY(16px); }
    to   { opacity: 1; transform: translateY(0); }
}

/* ============================================================
   Telefon: większe przyciski dotykowe
   ============================================================ */
@media (max-width: 576px) {
    .btn { padding: .5rem .9rem; }
}
