/*
============================================================================
PROJECTE: Motor Educatiu Step Quiz (Vanilla JS)
FITXER: css/probabilitat.css
ROL: Estils específics per al joc de probabilitat.
ARQUITECTURA:
- Sobreescriu les variables de shared.css amb paleta blau oceà.
- Reutilitza l'estructura visual de derivades.css (graella 2×2, feedback,
  hint-box, solution-reveal, resum pedagògic).
- Adapta el contenidor de l'enunciat per a text HTML (no KaTeX).
DEPENDÈNCIES: S'ha de carregar DESPRÉS de shared.css.
============================================================================
*/
:root {
    --bg-color:      #f0f9ff;
    --primary:       #0369a1;
    --primary-light: #e0f2fe;
    --primary-dark:  #0c4a6e;
    --primary-hover: #0284c7;
    --text-main:     #1e293b;
    --text-muted:    #64748b;
    --border-light:  #e2e8f0;
    --border-heavy:  #cbd5e1;
    --success:       #10b981;
    --danger:        #ef4444;
    --danger-light:  #fee2e2;
}

/* ---- CONTENIDOR DE L'ENUNCIAT (text, no KaTeX) ---- */
.prompt-box {
    padding: 20px 24px;
    text-align: left;
    max-width: 780px;
    margin: 0 auto;
    min-height: 80px;
    display: flex;
    flex-direction: column;
    gap: 10px;
}

.prompt-label {
    color: var(--text-muted);
    font-size: 0.78em;
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

.prompt-text {
    font-size: 1.15em;
    line-height: 1.65;
    color: var(--text-main);
    background: #f8fafc;
    border-radius: 12px;
    padding: 16px 22px;
    border: 2px solid var(--border-light);
    box-shadow: 0 2px 6px rgba(0,0,0,0.04);
}

.prompt-text strong {
    color: var(--primary-dark);
    font-weight: 700;
}

/* ---- GRAELLA DE BOTONS (idèntica a derivades.css) ---- */
.options-grid {
    display: grid;
    grid-template-columns: repeat(2, 1fr);
    gap: 15px;
    width: 100%;
    max-width: 780px;
    margin: 20px auto;
    padding: 0 15px;
}

@keyframes popIn {
    0%   { opacity: 0; transform: scale(0.95); }
    100% { opacity: 1; transform: scale(1); }
}

.btn-option {
    padding: 8px 14px !important;
    font-size: 1em;
    border-radius: 12px;
    border: 2px solid var(--border-heavy);
    background: white;
    color: var(--text-main);
    cursor: pointer;
    transition: background 0.2s, border-color 0.2s, transform 0.2s;
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 36px !important;
    box-shadow: 0 2px 4px rgba(0,0,0,0.05);
    opacity: 0;
    animation: popIn 0.3s cubic-bezier(0.175, 0.885, 0.32, 1.275) forwards;
    overflow: hidden;
    min-width: 0;
}

.btn-option .katex             { font-size: 2em; }
.btn-option.opt-integer .katex  { font-size: 1.4em; }

.btn-option:focus-visible { outline: 3px solid var(--primary); outline-offset: 2px; }

@media (hover: hover) {
    .btn-option:hover {
        background: var(--primary-light);
        border-color: var(--primary);
        transform: translateY(-2px);
    }
}

.btn-option:active { transform: scale(0.97); }

.btn-option.correct {
    background-color: var(--success) !important;
    border-color: var(--success) !important;
    color: white !important;
}

.btn-option.wrong {
    background-color: var(--danger-light) !important;
    border-color: var(--danger) !important;
    color: var(--danger) !important;
    pointer-events: none;
    opacity: 0.7;
}

/* ---- CAPÇALERA: una sola línia ---- */
.header-meta { font-size: 1em; color: #334155; font-weight: 600; }

/* ---- LAYOUT: opcions + overlay en fila ---- */
#game-screen {
    display: grid;
    grid-template-columns: 1fr 160px;
    grid-template-areas:
        "header   header"
        "prompt   prompt"
        "options  overlay"
        "feedback overlay";
}
.header-info       { grid-area: header; }
.prompt-box        { grid-area: prompt; }
#options-container { grid-area: options; }
#missatge-feedback { grid-area: feedback; }
#mini-victory-overlay {
    grid-area: overlay;
    display: none;
    flex-direction: column;
    justify-content: center;
    align-items: center;
    border-top: none;
    border-left: 1px solid var(--border-light);
    background-color: transparent;
    padding: 10px;
    animation: fadeInDown 0.3s ease;
}

/* ---- FEEDBACK (idèntic a derivades.css) ---- */
.feedback-correct { color: var(--success); }
.feedback-wrong   { color: var(--text-main); font-weight: normal; }

.hint-box {
    margin-top: 8px;
    padding: 10px 16px;
    background-color: #fffbeb;
    border-left: 4px solid #f59e0b;
    border-radius: 0 8px 8px 0;
    color: #78350f;
    font-size: 0.92em;
    line-height: 1.5;
    text-align: left;
    animation: fadeInDown 0.3s ease;
    white-space: pre-line;
}

.hint-toggle-btn {
    display: inline-block;
    margin-top: 8px;
    padding: 3px 10px;
    font-size: 0.78em;
    font-weight: 600;
    color: #92400e;
    background: #fef3c7;
    border: 1px solid #f59e0b;
    border-radius: 99px;
    cursor: pointer;
    user-select: none;
}
.hint-toggle-btn:hover { background: #fde68a; }

@keyframes fadeInDown {
    from { opacity: 0; transform: translateY(-6px); }
    to   { opacity: 1; transform: translateY(0); }
}

.solution-reveal {
    display: flex;
    align-items: center;
    justify-content: center;
    flex-wrap: wrap;
    gap: 10px;
    margin-top: 12px;
    padding: 10px 16px;
    background-color: #f0fdf4;
    border: 2px solid #bbf7d0;
    border-radius: 8px;
    animation: fadeInDown 0.4s ease;
}
.solution-label  { color: #047857; font-size: 0.9em; font-weight: 600; text-transform: uppercase; letter-spacing: 0.5px; }
.solution-formula { color: #065f46; font-size: 1.3em; }

/* ---- RESUM PEDAGÒGIC (idèntic a derivades.css) ---- */
#session-summary { padding: 24px 20px 28px; animation: fadeInDown 0.4s ease; }
.summary-score { display: flex; flex-direction: column; align-items: center; gap: 4px; margin-bottom: 20px; }
.summary-score-label { font-size: 0.85em; text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted); }
.summary-score-value { font-size: 2em; font-weight: 800; color: var(--primary-dark); }

.summary-stats { display: flex; justify-content: center; gap: 12px; margin-bottom: 24px; flex-wrap: wrap; }
.summary-stat { display: flex; flex-direction: column; align-items: center; gap: 4px; padding: 12px 16px; border-radius: 10px; min-width: 90px; border: 2px solid transparent; }
.summary-stat--ok   { background: #f0fdf4; border-color: #bbf7d0; }
.summary-stat--warn { background: #fffbeb; border-color: #fde68a; }
.summary-stat--err  { background: #fef2f2; border-color: #fecaca; }
.summary-stat-num { font-size: 1.8em; font-weight: 800; line-height: 1; }
.summary-stat--ok   .summary-stat-num { color: #047857; }
.summary-stat--warn .summary-stat-num { color: #b45309; }
.summary-stat--err  .summary-stat-num { color: #b91c1c; }
.summary-stat-desc { font-size: 0.78em; text-align: center; color: var(--text-muted); line-height: 1.3; }

.summary-errors-title { font-size: 0.82em; text-transform: uppercase; letter-spacing: 1px; color: var(--text-muted); font-weight: 700; margin-bottom: 10px; text-align: center; }
.summary-errors-list { display: flex; flex-direction: column; gap: 8px; margin-bottom: 24px; }
.summary-error-item { background: #fffbeb; border-left: 4px solid #f59e0b; border-radius: 0 8px 8px 0; padding: 10px 14px; animation: fadeInDown 0.3s ease; }
.summary-error-header { display: flex; justify-content: space-between; align-items: baseline; gap: 8px; margin-bottom: 4px; }
.summary-error-type { font-weight: 700; font-size: 0.92em; color: #78350f; }
.summary-error-count { font-size: 0.78em; color: #92400e; white-space: nowrap; background: #fef3c7; padding: 1px 8px; border-radius: 99px; }
.summary-error-hint { font-size: 0.88em; color: #78350f; line-height: 1.5; }
.summary-no-errors { text-align: center; color: #047857; font-weight: 600; font-size: 1em; background: #f0fdf4; border: 2px solid #bbf7d0; border-radius: 10px; padding: 14px; margin-bottom: 24px; }
.summary-continue-btn { display: block; margin: 0 auto; padding: 12px 36px; background: var(--primary); color: white; border: none; border-radius: 10px; font-size: 1em; font-weight: 700; cursor: pointer; transition: background 0.2s, transform 0.15s; }
.summary-continue-btn:hover  { background: var(--primary-hover); transform: translateY(-1px); }
.summary-continue-btn:active { transform: scale(0.97); }

/* ---- RESPONSIU ---- */
@media (max-width: 600px) {
    #game-screen { grid-template-columns: 1fr; grid-template-areas: "header" "prompt" "options" "overlay" "feedback"; }
    #mini-victory-overlay { border-left: none; border-top: 1px solid var(--border-light); }
    .options-grid { grid-template-columns: 1fr; gap: 10px; }
    .prompt-text  { font-size: 1em; padding: 12px 16px; }
    .btn-option   { min-height: 48px; font-size: 1em; padding: 10px; }
    .hint-box     { font-size: 0.88em; padding: 8px 12px; }
    .solution-reveal { flex-direction: column; gap: 6px; }
    .summary-stats   { gap: 8px; }
    .summary-stat    { min-width: 75px; padding: 10px; }
    .summary-stat-num{ font-size: 1.5em; }
}