/* Skill Trainer — één stylesheet, licht en donker thema via prefers-color-scheme */

:root {
    --bg: #f6f7fb;
    --surface: #ffffff;
    --text: #1c2333;
    --muted: #5b6478;
    --border: #e3e6ef;
    --primary: #4f5df0;
    --primary-hover: #3b49dd;
    --primary-contrast: #ffffff;
    --ok: #1d9e5f;
    --ok-bg: #e5f7ee;
    --nok: #d64545;
    --nok-bg: #fdeaea;
    --shadow: 0 1px 3px rgba(20, 24, 40, .07), 0 8px 24px rgba(20, 24, 40, .06);
    --radius: 14px;
}

@media (prefers-color-scheme: dark) {
    :root {
        --bg: #12141c;
        --surface: #1c1f2b;
        --text: #e8eaf2;
        --muted: #9aa3b8;
        --border: #2c3040;
        --primary: #6b78ff;
        --primary-hover: #8590ff;
        --primary-contrast: #ffffff;
        --ok: #38c47f;
        --ok-bg: #16311f;
        --nok: #ff7070;
        --nok-bg: #3a1d1d;
        --shadow: 0 1px 3px rgba(0, 0, 0, .4), 0 8px 24px rgba(0, 0, 0, .35);
    }
}

* { box-sizing: border-box; }

body {
    margin: 0;
    font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, sans-serif;
    background: var(--bg);
    color: var(--text);
    line-height: 1.55;
}

/* ---------- Navigatie ---------- */
.topnav {
    display: flex;
    align-items: center;
    justify-content: space-between;
    gap: 1rem;
    padding: .7rem 1.2rem;
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky;
    top: 0;
    z-index: 10;
}
.brand {
    font-weight: 700;
    font-size: 1.05rem;
    text-decoration: none;
    color: var(--text);
}
.brand-mark { color: var(--primary); }
.nav-right { display: flex; align-items: center; gap: .6rem; }
.nav-user { color: var(--muted); font-size: .92rem; text-decoration: none; }
.nav-user:hover { color: var(--text); }

.nav-tabs { display: flex; gap: .3rem; margin-right: auto; margin-left: 1.2rem; }
.nav-tab {
    text-decoration: none;
    color: var(--muted);
    font-weight: 600;
    font-size: .95rem;
    padding: .4rem .8rem;
    border-radius: 8px;
}
.nav-tab:hover { background: var(--border); color: var(--text); }
.nav-tab.active { color: var(--primary); background: color-mix(in srgb, var(--primary) 12%, transparent); }

/* ---------- Layout ---------- */
.container {
    max-width: 980px;
    margin: 0 auto;
    padding: 1.6rem 1.2rem 3rem;
}
.footer {
    text-align: center;
    color: var(--muted);
    font-size: .85rem;
    padding: 1.5rem 0 2.2rem;
}
.page-title { margin: .4rem 0 .2rem; }
.page-sub { color: var(--muted); margin-top: 0; }

/* ---------- Knoppen ---------- */
.btn {
    display: inline-block;
    border: 1px solid transparent;
    border-radius: 10px;
    padding: .5rem 1rem;
    font-size: .95rem;
    font-weight: 600;
    cursor: pointer;
    text-decoration: none;
    color: var(--text);
    background: transparent;
    transition: background .15s, border-color .15s, transform .05s;
}
.btn:active { transform: scale(.98); }
.btn-primary {
    background: var(--primary);
    color: var(--primary-contrast);
}
.btn-primary:hover { background: var(--primary-hover); }
.btn-ghost { border-color: var(--border); }
.btn-ghost:hover { background: var(--border); }
.btn-lg { padding: .7rem 1.4rem; font-size: 1.05rem; }
.btn-block { width: 100%; }
.btn:disabled { opacity: .55; cursor: default; }

/* ---------- Hero (uitgelogd) ---------- */
.hero {
    text-align: center;
    padding: 2.5rem 0 1.5rem;
}
.hero h1 { font-size: 2.1rem; margin-bottom: .6rem; }
.hero p { max-width: 34rem; margin: 0 auto .6rem; color: var(--muted); }
.hero-cta { margin-top: 1.4rem; display: flex; gap: .8rem; justify-content: center; flex-wrap: wrap; }

/* ---------- Kaarten ---------- */
.grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(260px, 1fr));
    gap: 1rem;
    margin-top: 1.4rem;
}
.card {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.1rem 1.2rem;
    display: flex;
    flex-direction: column;
    gap: .3rem;
}
.card h3 { margin: .2rem 0; }
.card p { margin: 0 0 .5rem; color: var(--muted); font-size: .92rem; flex-grow: 1; }
.card-link { text-decoration: none; color: var(--text); transition: transform .12s, box-shadow .12s; }
.card-link:hover { transform: translateY(-2px); box-shadow: 0 4px 10px rgba(20,24,40,.1), 0 12px 32px rgba(20,24,40,.1); }
.card-disabled { opacity: .6; }
.card-top { display: flex; justify-content: space-between; align-items: center; }
.card-icon { font-size: 1.5rem; line-height: 1; }
.card-meta {
    display: flex;
    justify-content: space-between;
    font-size: .8rem;
    color: var(--muted);
    margin-top: .35rem;
}

/* ---------- Badges & niveaus ---------- */
.badge {
    display: inline-block;
    padding: .15rem .6rem;
    border-radius: 999px;
    font-size: .75rem;
    font-weight: 700;
    letter-spacing: .02em;
}
.badge-soon { background: var(--border); color: var(--muted); align-self: flex-start; }
.badge-level.lv-0 { background: #e3e6ef; color: #444c63; }
.badge-level.lv-1 { background: #d9ecff; color: #1e5f9e; }
.badge-level.lv-2 { background: #dcf3e4; color: #17714a; }
.badge-level.lv-3 { background: #fdeed3; color: #935e10; }
.badge-level.lv-4 { background: #f4e3ff; color: #7126a8; }
@media (prefers-color-scheme: dark) {
    .badge-level.lv-0 { background: #2c3040; color: #aab2c8; }
    .badge-level.lv-1 { background: #17324c; color: #7cb8ef; }
    .badge-level.lv-2 { background: #143523; color: #5fce97; }
    .badge-level.lv-3 { background: #3d2f14; color: #e8b45e; }
    .badge-level.lv-4 { background: #331c44; color: #cf8ef5; }
}

/* ---------- XP-balk ---------- */
.xpbar {
    height: 8px;
    border-radius: 999px;
    background: var(--border);
    overflow: hidden;
}
.xpbar-fill {
    height: 100%;
    width: 0;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--primary), #9b7bff);
    transition: width .5s ease;
}
.xpbar-wide { flex: 1 1 120px; max-width: 260px; }

/* ---------- Formulieren / auth ---------- */
.auth-box {
    max-width: 26rem;
    margin: 2.5rem auto;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.8rem;
}
.auth-box h1 { margin-top: 0; font-size: 1.4rem; }
.auth-box label {
    display: block;
    font-weight: 600;
    font-size: .9rem;
    margin-bottom: .9rem;
}
.auth-box label small { color: var(--muted); font-weight: 400; }
.auth-box input {
    display: block;
    width: 100%;
    margin-top: .3rem;
    padding: .55rem .7rem;
    font-size: 1rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg);
    color: var(--text);
}
.auth-box input:focus { outline: 2px solid var(--primary); border-color: transparent; }
.auth-alt { text-align: center; font-size: .9rem; color: var(--muted); margin-top: 1rem; }
.auth-alt a { color: var(--primary); }
.alert { padding: .6rem .9rem; border-radius: 10px; font-size: .9rem; }
.alert-error { background: var(--nok-bg); color: var(--nok); }
.alert-ok { background: var(--ok-bg); color: var(--ok); }
.code-block {
    background: var(--bg);
    border: 1px solid var(--border);
    border-radius: 8px;
    padding: .7rem .9rem;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: .9rem;
    overflow-x: auto;
}

/* ---------- Trainer ---------- */
.trainer-head { margin-bottom: 1rem; }
.backlink { color: var(--muted); text-decoration: none; font-size: .9rem; }
.backlink:hover { color: var(--text); }
.trainer-head h1 { margin: .3rem 0 .6rem; display: flex; align-items: center; gap: .5rem; }
.trainer-stats {
    display: flex;
    align-items: center;
    gap: .9rem;
    flex-wrap: wrap;
}
.stat { font-size: .88rem; color: var(--muted); }
.stat b { color: var(--text); }

.trainer {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 2rem 1.6rem;
    max-width: 640px;
    margin: 0 auto;
    text-align: center;
}
.trainer-prompt { font-size: 1.25rem; font-weight: 600; min-height: 2.2rem; }
.trainer-note { font-size: .85rem; color: var(--muted); font-weight: 400; margin-top: .4rem; }

.answer-form {
    display: flex;
    gap: .6rem;
    justify-content: center;
    margin-top: 1.3rem;
    flex-wrap: wrap;
}
.answer-form input {
    padding: .6rem .8rem;
    font-size: 1.1rem;
    border: 1px solid var(--border);
    border-radius: 10px;
    background: var(--bg);
    color: var(--text);
    text-align: center;
    min-width: 12rem;
}
.answer-form input:focus { outline: 2px solid var(--primary); border-color: transparent; }

.choices { display: flex; gap: .6rem; justify-content: center; flex-wrap: wrap; margin-top: 1.3rem; }
.btn-choice { border-color: var(--border); font-size: 1.05rem; padding: .6rem 1.2rem; }
.btn-choice:hover { background: var(--border); }
.btn-choice.choice-ok { border-color: var(--ok); background: var(--ok-bg); color: var(--ok); opacity: 1; }
.btn-choice.choice-nok { border-color: var(--nok); background: var(--nok-bg); color: var(--nok); opacity: 1; }
.morse-choice {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 1.2rem;
    letter-spacing: .12em;
}
.rhythm-choice {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 1.1rem;
    letter-spacing: .08em;
}
/* Nieuw teken introduceren (morse) */
.morse-new-badge {
    display: inline-block;
    background: color-mix(in srgb, var(--primary) 16%, transparent);
    color: var(--primary);
    font-weight: 700;
    font-size: .8rem;
    padding: .2rem .7rem;
    border-radius: 999px;
    margin-bottom: .6rem;
}
.morse-new {
    display: flex;
    align-items: baseline;
    justify-content: center;
    gap: 1rem;
    margin: .6rem 0 1rem;
}
.morse-new-char {
    font-size: 3rem;
    font-weight: 700;
    line-height: 1;
}
.morse-new-code {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: 2.2rem;
    letter-spacing: .12em;
    color: var(--primary);
}

/* Spiekbriefje onder de trainer */
.skill-aside { max-width: 640px; margin: 1rem auto 0; }
.cheat {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    padding: .3rem 1rem;
}
.cheat summary {
    cursor: pointer;
    font-weight: 600;
    padding: .6rem 0;
    user-select: none;
}
.cheat-hint { color: var(--muted); font-size: .85rem; margin: 0 0 .6rem; }
.cheat-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(72px, 1fr));
    gap: .5rem;
    padding-bottom: .8rem;
}
.cheat-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .15rem;
    padding: .4rem .2rem;
    border: 1px solid var(--border);
    border-radius: 8px;
}
.cheat-item b { font-size: 1.1rem; }
.cheat-item span {
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
    font-size: .95rem;
    letter-spacing: .08em;
    color: var(--muted);
}

/* Taalmodule */
.vocab-label { color: var(--muted); font-size: .95rem; margin-bottom: .5rem; }
.vocab-term { font-size: 2rem; font-weight: 700; }
.vocab-new {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .2rem;
    margin: .6rem 0 .2rem;
}
.vocab-new-word { font-size: 2.4rem; font-weight: 700; color: var(--primary); }
.vocab-new-nl { font-size: 1.2rem; color: var(--muted); }
.hero-langs {
    text-align: center;
    color: var(--muted);
    margin-top: 1.6rem;
    font-size: .95rem;
}

/* Examen: voortgangsbalk in de kop, knop en uitslag */
.exam-strip {
    display: flex;
    align-items: center;
    gap: .8rem;
    flex-wrap: wrap;
    margin-top: .8rem;
}
.exam-bar {
    flex: 1 1 160px;
    max-width: 260px;
    height: 8px;
    border-radius: 999px;
    background: var(--border);
    overflow: hidden;
}
.exam-fill {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--primary), #9b7bff);
    transition: width .4s ease;
}
.exam-text { font-size: .88rem; color: var(--muted); }
.exam-text.ready { color: var(--ok); font-weight: 600; }
.btn-exam { padding: .35rem .9rem; font-size: .9rem; }
.exam-ready { color: var(--ok); font-weight: 600; }
.level-num { color: var(--muted); font-size: .8rem; margin-left: .35rem; }

.exam-result { font-size: 1.6rem; font-weight: 700; margin-bottom: .5rem; }
.exam-result.pass { color: var(--ok); }
.exam-result.fail { color: var(--nok); }

/* Opmerking bij een goedgekeurd maar niet perfect antwoord */
.answer-hint {
    margin-top: .4rem;
    font-size: .92rem;
    font-weight: 600;
    color: #b45309;
}
@media (prefers-color-scheme: dark) {
    .answer-hint { color: #fbbf24; }
}

/* Niveau-ladder (10 stappen) op de voortgangskaarten */
.level-ladder {
    display: flex;
    gap: 3px;
    margin: .5rem 0 .1rem;
}
.ladder-step {
    flex: 1;
    height: 7px;
    border-radius: 3px;
    background: var(--border);
}
.ladder-step.done {
    background: linear-gradient(90deg, var(--primary), #9b7bff);
}
.exam-verdict { font-weight: 600; font-size: .88rem; }
.exam-verdict.pass { color: var(--ok); }
.exam-verdict.fail { color: var(--nok); }

/* Opfrissen & themapakketten */
.mode-banner {
    max-width: 640px;
    margin: 0 auto 1rem;
    background: color-mix(in srgb, var(--primary) 10%, var(--surface));
    border: 1px solid var(--border);
    border-radius: 10px;
    padding: .55rem .9rem;
    font-size: .92rem;
    text-align: center;
}
.mode-banner a { color: var(--primary); }
.extra-box {
    max-width: 640px;
    margin: 1.5rem auto 0;
    text-align: center;
}
.review-form { margin-bottom: 1.4rem; }
.level-select {
    display: flex;
    flex-direction: column;
    gap: .35rem;
    text-align: left;
    max-width: 340px;
    margin: 0 auto .9rem;
}
.level-row {
    display: flex;
    align-items: center;
    gap: .5rem;
    padding: .35rem .6rem;
    border: 1px solid var(--border);
    border-radius: 8px;
    background: var(--surface);
    font-size: .92rem;
    cursor: pointer;
    user-select: none;
}
.level-row input { accent-color: var(--primary); margin: 0; }
.level-row .level-no {
    font-weight: 700;
    min-width: 1.4rem;
    text-align: right;
    color: var(--primary);
}
.level-row.locked {
    background: var(--border);
    border-color: transparent;
    color: var(--muted);
    opacity: .75;
    cursor: default;
}
.level-row.locked .level-no { color: var(--muted); }

.pack-list {
    display: flex;
    gap: .6rem;
    flex-wrap: wrap;
    justify-content: center;
}
.pack-item {
    display: flex;
    flex-direction: column;
    align-items: center;
    gap: .15rem;
    min-width: 120px;
    padding: .7rem .9rem;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    text-decoration: none;
    color: var(--text);
    transition: transform .12s, border-color .12s;
}
.pack-item:hover { transform: translateY(-2px); border-color: var(--primary); }
.pack-icon { font-size: 1.5rem; }
.pack-name { font-weight: 600; font-size: .92rem; }
.pack-meta { font-size: .8rem; color: var(--muted); }

/* Beheer */
.badge-admin {
    background: color-mix(in srgb, var(--primary) 18%, transparent);
    color: var(--primary);
    font-size: .7rem;
    padding: .1rem .5rem;
    border-radius: 999px;
    font-weight: 700;
    margin-left: .35rem;
    vertical-align: middle;
}
.admin-actions {
    display: flex;
    gap: .6rem;
    flex-wrap: wrap;
    margin: 1rem 0 .5rem;
}
.admin-actions form { margin: 0; }
.btn-danger { border-color: var(--nok); color: var(--nok); }
.btn-danger:hover { background: var(--nok-bg); }

/* Statistieken */
.stat-tiles {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(150px, 1fr));
    gap: 1rem;
    margin: 1.4rem 0;
}
.stat-tile {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.1rem 1.2rem;
    text-align: center;
}
.stat-num { font-size: 1.8rem; font-weight: 700; line-height: 1.1; }
.stat-lbl { color: var(--muted); font-size: .85rem; margin-top: .3rem; }
.stat-h2 { margin: 1.8rem 0 .8rem; font-size: 1.2rem; }

.table-scroll { overflow-x: auto; }
.stat-table {
    width: 100%;
    border-collapse: collapse;
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    overflow: hidden;
    box-shadow: var(--shadow);
}
.stat-table th, .stat-table td {
    padding: .7rem .9rem;
    text-align: left;
    border-bottom: 1px solid var(--border);
    white-space: nowrap;
}
.stat-table thead th {
    font-size: .8rem;
    color: var(--muted);
    font-weight: 600;
    text-transform: uppercase;
    letter-spacing: .03em;
}
.stat-table tbody tr:last-child td { border-bottom: none; }
.stat-table .num { text-align: right; }
.stat-table .skill-cell { font-weight: 600; }
.stat-table .skill-cell .card-icon { font-size: 1.1rem; margin-right: .3rem; }

.pct-wrap { display: flex; align-items: center; gap: .5rem; min-width: 130px; }
.pct-bar {
    flex: 1;
    height: 8px;
    border-radius: 999px;
    background: var(--border);
    overflow: hidden;
}
.pct-fill {
    height: 100%;
    border-radius: 999px;
    background: linear-gradient(90deg, var(--ok), #7bd6a5);
}
.pct-num { font-size: .85rem; color: var(--muted); min-width: 2.6rem; text-align: right; }

.play-wrap { margin-top: 1.1rem; }
.btn-play {
    background: var(--surface);
    border-color: var(--primary);
    color: var(--primary);
    font-size: 1.05rem;
    padding: .65rem 1.5rem;
}
.btn-play:hover { background: color-mix(in srgb, var(--primary) 12%, transparent); }

/* ---------- Mix-training ---------- */
.mix-box {
    background: var(--surface);
    border: 1px solid var(--border);
    border-radius: var(--radius);
    box-shadow: var(--shadow);
    padding: 1.1rem 1.2rem;
    margin-top: 1.2rem;
    display: flex;
    gap: 1.2rem;
    align-items: center;
    flex-wrap: wrap;
}
.mix-text h2 { margin: 0 0 .2rem; font-size: 1.1rem; }
.mix-text p { margin: 0; color: var(--muted); font-size: .9rem; }
.mix-form {
    display: flex;
    gap: .5rem;
    align-items: center;
    flex-wrap: wrap;
    margin-left: auto;
}
.chip {
    display: inline-flex;
    align-items: center;
    gap: .35rem;
    border: 1px solid var(--border);
    border-radius: 999px;
    padding: .35rem .8rem;
    font-size: .88rem;
    cursor: pointer;
    user-select: none;
}
.chip:has(input:checked) {
    border-color: var(--primary);
    background: color-mix(in srgb, var(--primary) 12%, transparent);
}
.chip input { accent-color: var(--primary); margin: 0; }
.skill-tag {
    font-weight: 700;
    font-size: .95rem;
}

.trainer-feedback { margin-top: 1.2rem; font-weight: 600; min-height: 1.6rem; }
.trainer-feedback.ok { color: var(--ok); }
.trainer-feedback.nok { color: var(--nok); }
.feedback-extra { font-weight: 500; color: var(--muted); }
.trainer-feedback .btn { margin-top: .7rem; }

/* Skill-specifiek */
.morse-code {
    font-size: 2rem;
    letter-spacing: .18em;
    margin-top: .8rem;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.logic-seq {
    font-size: 1.7rem;
    margin-top: .8rem;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.memory-seq {
    font-size: 2.2rem;
    letter-spacing: .25em;
    margin-top: .8rem;
    font-family: ui-monospace, SFMono-Regular, Menlo, monospace;
}
.memory-timer {
    height: 6px;
    border-radius: 999px;
    background: var(--border);
    max-width: 260px;
    margin: 1rem auto 0;
    overflow: hidden;
}
.memory-timer-fill {
    height: 100%;
    width: 100%;
    background: var(--primary);
    transition-property: width;
    transition-timing-function: linear;
}

@media (max-width: 520px) {
    .hero h1 { font-size: 1.6rem; }
    .trainer { padding: 1.4rem 1rem; }
}