/* =========================================================
   C-Trainer Lerntrainer – Frontend Styles
   ========================================================= */

:root {
    --ct-primary:   #1d4e8f;
    --ct-success:   #2e7d32;
    --ct-danger:    #c62828;
    --ct-warn:      #e65100;
    --ct-bg:        #f5f7fa;
    --ct-card-bg:   #ffffff;
    --ct-border:    #dde1e7;
    --ct-radius:    8px;
    --ct-shadow:    0 2px 8px rgba(0,0,0,.08);
    --ct-font:      system-ui, -apple-system, sans-serif;
}

/* ----- Base wrap ----- */
.ctrainer-wrap {
    font-family: var(--ct-font);
    max-width: 720px;
    margin: 0 auto;
    padding: 1rem;
    color: #1a1a1a;
}

/* ----- Buttons ----- */
.ctrainer-btn {
    display: inline-block;
    padding: .55em 1.2em;
    border: none;
    border-radius: var(--ct-radius);
    background: var(--ct-primary);
    color: #fff;
    font-size: 1rem;
    cursor: pointer;
    transition: opacity .15s;
}
.ctrainer-btn:hover { opacity: .85; }
.ctrainer-btn--outline  { background: transparent; border: 2px solid var(--ct-primary); color: var(--ct-primary); }
.ctrainer-btn--secondary{ background: #607d8b; }
.ctrainer-btn--success  { background: var(--ct-success); }
.ctrainer-btn--danger   { background: var(--ct-danger); }
.ctrainer-btn--next     { margin-top: 1rem; }

.ctrainer-btn-group {
    display: flex;
    gap: .75rem;
    flex-wrap: wrap;
    margin-top: 1rem;
}

/* ----- Card ----- */
.ctrainer-card {
    background: var(--ct-card-bg);
    border: 1px solid var(--ct-border);
    border-radius: var(--ct-radius);
    box-shadow: var(--ct-shadow);
    padding: 1.25rem 1.5rem;
    margin-bottom: 1.25rem;
}

/* ----- Notice ----- */
.ctrainer-notice {
    background: #fff3cd;
    border-left: 4px solid #ffc107;
    padding: .75rem 1rem;
    border-radius: var(--ct-radius);
}

/* ----- Tabs (Login) ----- */
.ctrainer-tabs {
    display: flex;
    gap: .5rem;
    margin-bottom: 1.25rem;
}
.ctrainer-tab {
    background: none;
    border: 2px solid var(--ct-border);
    border-radius: 6px 6px 0 0;
    padding: .45em 1.1em;
    cursor: pointer;
    font-size: .95rem;
    color: #555;
}
.ctrainer-tab.active {
    border-color: var(--ct-primary);
    color: var(--ct-primary);
    border-bottom-color: #fff;
    background: #fff;
}

/* ----- Forms ----- */
.ctrainer-form {
    display: flex;
    flex-direction: column;
    gap: .85rem;
    max-width: 380px;
}
.ctrainer-form label {
    display: flex;
    flex-direction: column;
    gap: .3rem;
    font-weight: 500;
    font-size: .95rem;
}
.ctrainer-form input {
    padding: .5em .75em;
    border: 1px solid var(--ct-border);
    border-radius: 6px;
    font-size: 1rem;
}
.ctrainer-msg {
    padding: .6em 1em;
    border-radius: 6px;
    margin-bottom: .75rem;
}
.ctrainer-msg--error   { background: #fdecea; border-left: 4px solid var(--ct-danger); color: var(--ct-danger); }
.ctrainer-msg--success { background: #e8f5e9; border-left: 4px solid var(--ct-success); color: var(--ct-success); }

/* ----- Loggedin bar ----- */
.ctrainer-loggedin {
    display: flex;
    align-items: center;
    gap: 1rem;
    flex-wrap: wrap;
}

/* ----- Dashboard ----- */
.ctrainer-dashboard__header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    flex-wrap: wrap;
    gap: .75rem;
    margin-bottom: 1.25rem;
}
.ctrainer-dashboard__header h2 { margin: 0; }

/* Box-Verteilung */
.ctrainer-boxes {
    display: flex;
    gap: .75rem;
    flex-wrap: wrap;
}
.ctrainer-box {
    flex: 1 1 80px;
    min-width: 80px;
    border-radius: var(--ct-radius);
    padding: .75rem .5rem;
    text-align: center;
    color: #fff;
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .25rem;
}
.ctrainer-box--1 { background: #e53935; }
.ctrainer-box--2 { background: #fb8c00; }
.ctrainer-box--3 { background: #fdd835; color: #333; }
.ctrainer-box--4 { background: #43a047; }
.ctrainer-box--5 { background: #1e88e5; }
.ctrainer-box__num   { font-size: 1.6rem; font-weight: 700; line-height: 1; }
.ctrainer-box__label { font-size: .72rem; opacity: .9; }

/* Progress bars */
.ctrainer-topic-row { margin-bottom: 1rem; }
.ctrainer-topic-row__name { font-weight: 600; margin-bottom: .3rem; }
.ctrainer-topic-row__meta { font-size: .82rem; color: #666; margin-top: .2rem; }
.ctrainer-progress-bar {
    height: 12px;
    background: var(--ct-border);
    border-radius: 6px;
    overflow: hidden;
}
.ctrainer-progress-bar__fill {
    height: 100%;
    background: var(--ct-primary);
    border-radius: 6px;
    transition: width .4s ease;
}

/* ----- Lernmodus ----- */
.ctrainer-toolbar {
    display: flex;
    flex-wrap: wrap;
    gap: 1rem;
    align-items: flex-end;
    margin-bottom: 1.25rem;
    background: var(--ct-bg);
    border: 1px solid var(--ct-border);
    border-radius: var(--ct-radius);
    padding: .85rem 1rem;
}
.ctrainer-toolbar label {
    display: flex;
    flex-direction: column;
    gap: .3rem;
    font-size: .9rem;
    font-weight: 500;
}
.ctrainer-toolbar select {
    padding: .4em .6em;
    border: 1px solid var(--ct-border);
    border-radius: 5px;
    font-size: .95rem;
}

.ctrainer-session-info {
    display: flex;
    gap: .5rem;
    margin-bottom: .75rem;
}
.ctrainer-badge {
    display: inline-block;
    padding: .2em .7em;
    border-radius: 20px;
    font-size: .78rem;
    font-weight: 600;
    background: var(--ct-primary);
    color: #fff;
    text-transform: uppercase;
    letter-spacing: .04em;
}
.ctrainer-badge--box { background: #607d8b; }

/* Image */
#ctrainer-img-wrap {
    margin-bottom: 1rem;
    text-align: center;
}
#ctrainer-item-img {
    max-width: 100%;
    height: auto;
    border-radius: var(--ct-radius);
    border: 1px solid var(--ct-border);
}

.ctrainer-frage {
    font-size: 1.15rem;
    font-weight: 600;
    line-height: 1.5;
    white-space: pre-wrap;
}

.ctrainer-answer {
    background: var(--ct-bg);
    border-radius: var(--ct-radius);
    padding: 1rem;
    margin-top: .75rem;
    white-space: pre-wrap;
    line-height: 1.6;
}

/* MC Options */
.ctrainer-mc-options {
    display: flex;
    flex-direction: column;
    gap: .6rem;
    margin-top: .5rem;
}
.ctrainer-mc-opt {
    display: block;
    width: 100%;
    text-align: left;
    padding: .7em 1em;
    border: 2px solid var(--ct-border);
    border-radius: var(--ct-radius);
    background: #fff;
    font-size: 1rem;
    cursor: pointer;
    transition: border-color .15s, background .15s;
}
.ctrainer-mc-opt:hover:not(:disabled) { border-color: var(--ct-primary); background: #eef2ff; }
.ctrainer-mc-opt.correct   { border-color: var(--ct-success); background: #e8f5e9; }
.ctrainer-mc-opt.wrong     { border-color: var(--ct-danger);  background: #fdecea; }

/* Freetext */
#ctrainer-freetext-input {
    width: 100%;
    box-sizing: border-box;
    padding: .65em .85em;
    border: 1px solid var(--ct-border);
    border-radius: var(--ct-radius);
    font-size: 1rem;
    font-family: inherit;
    resize: vertical;
    margin-bottom: .75rem;
}

/* Feedback */
#ctrainer-feedback { margin-top: 1rem; }
.ctrainer-feedback-badge {
    display: inline-block;
    padding: .3em .9em;
    border-radius: 20px;
    font-weight: 700;
    font-size: 1rem;
    margin-bottom: .75rem;
}
.ctrainer-feedback-badge.richtig   { background: #e8f5e9; color: var(--ct-success); border: 2px solid var(--ct-success); }
.ctrainer-feedback-badge.teilweise { background: #fff3e0; color: var(--ct-warn);    border: 2px solid var(--ct-warn); }
.ctrainer-feedback-badge.falsch    { background: #fdecea; color: var(--ct-danger);  border: 2px solid var(--ct-danger); }

#ctrainer-feedback-details { margin-bottom: .75rem; font-size: .92rem; }
#ctrainer-feedback-details .ct-kw-found   { color: var(--ct-success); }
#ctrainer-feedback-details .ct-kw-missing { color: var(--ct-danger); }

#ctrainer-musterantwort-wrap {
    background: var(--ct-bg);
    border-left: 4px solid var(--ct-primary);
    padding: .75rem 1rem;
    border-radius: 0 var(--ct-radius) var(--ct-radius) 0;
    margin-bottom: .75rem;
    white-space: pre-wrap;
    line-height: 1.6;
    font-size: .93rem;
}

/* Done-Screen */
.ctrainer-done-msg {
    text-align: center;
    padding: 2.5rem 1rem;
    background: var(--ct-card-bg);
    border: 1px solid var(--ct-border);
    border-radius: var(--ct-radius);
    box-shadow: var(--ct-shadow);
}
.ctrainer-done-icon { font-size: 3rem; display: block; margin-bottom: .5rem; }

/* ----- Responsive ----- */
@media (max-width: 480px) {
    .ctrainer-toolbar { flex-direction: column; }
    .ctrainer-btn-group { flex-direction: column; }
    .ctrainer-boxes { gap: .4rem; }
}