/* ============================================
   Badge-System – Schulhomepage
   Design: Klares Schul-Blau, freundlich & übersichtlich
   ============================================ */

@import url('https://fonts.googleapis.com/css2?family=Nunito:wght@400;600;700;800&family=Inter:wght@400;500;600&display=swap');

:root {
    --accent:       #3B6FF0;
    --accent-light: #EEF2FF;
    --accent-dark:  #2451C7;
    --gold:         #F5A623;
    --green:        #27AE60;
    --red:          #E74C3C;

    --bg:           #F4F6FB;
    --surface:      #FFFFFF;
    --border:       #DDE3EF;

    --text:         #1A1F36;
    --text-muted:   #6B7394;

    --radius:       12px;
    --radius-sm:    8px;
    --shadow:       0 2px 12px rgba(59,111,240,.08);
    --shadow-md:    0 4px 24px rgba(59,111,240,.13);
}

*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

body {
    font-family: 'Inter', sans-serif;
    background: var(--bg);
    color: var(--text);
    min-height: 100vh;
    font-size: 15px;
    line-height: 1.6;
}

/* ---- Topbar ---- */
.topbar {
    background: var(--surface);
    border-bottom: 1px solid var(--border);
    position: sticky; top: 0; z-index: 100;
    box-shadow: var(--shadow);
}
.topbar-inner {
    max-width: 1100px; margin: 0 auto;
    display: flex; align-items: center; gap: 1rem;
    padding: .75rem 1.5rem;
}
.topbar-school {
    font-family: 'Nunito', sans-serif;
    font-weight: 800; font-size: 1rem;
    color: var(--accent);
}
.topbar-title {
    font-weight: 600; color: var(--text-muted);
    flex: 1;
}
.topbar-back {
    color: var(--accent); text-decoration: none;
    font-weight: 600; font-size: .9rem;
}
.topbar-back:hover { text-decoration: underline; }
.topbar-user {
    display: flex; align-items: center; gap: .5rem;
    font-size: .9rem; color: var(--text-muted);
}

/* ---- Main ---- */
.main-content {
    max-width: 1100px; margin: 0 auto;
    padding: 2rem 1.5rem;
}
.page-header { margin-bottom: 2rem; }
.page-header h2 { font-family: 'Nunito', sans-serif; font-size: 1.6rem; font-weight: 800; }
.page-header p  { color: var(--text-muted); }

/* ---- Buttons ---- */
.btn {
    display: inline-flex; align-items: center; gap: .4rem;
    padding: .55rem 1.1rem;
    border: none; border-radius: var(--radius-sm);
    font-size: .9rem; font-weight: 600;
    cursor: pointer; text-decoration: none;
    transition: background .15s, transform .1s;
}
.btn:active { transform: scale(.97); }
.btn-primary  { background: var(--accent); color: #fff; }
.btn-primary:hover { background: var(--accent-dark); }
.btn-ghost    { background: transparent; color: var(--text-muted); border: 1px solid var(--border); }
.btn-ghost:hover  { background: var(--bg); }
.btn-danger   { background: #FEE2E2; color: var(--red); }
.btn-danger:hover { background: #FECACA; }
.btn-sm  { padding: .3rem .7rem; font-size: .8rem; }
.btn-full { width: 100%; justify-content: center; }

/* ---- Alerts ---- */
.alert {
    padding: .75rem 1rem; border-radius: var(--radius-sm);
    margin-bottom: 1.5rem; font-weight: 600;
}
.alert-success { background: #D1FAE5; color: #065F46; }
.alert-error   { background: #FEE2E2; color: #991B1B; }

/* ---- Login ---- */
.login-page { display: flex; align-items: center; justify-content: center; min-height: 100vh; }
.login-wrap {
    background: var(--surface); border-radius: var(--radius);
    box-shadow: var(--shadow-md);
    padding: 2.5rem 2rem; width: 100%; max-width: 400px;
}
.login-logo {
    text-align: center; margin-bottom: 2rem;
}
.login-logo h1 {
    font-family: 'Nunito', sans-serif; font-weight: 800;
    font-size: 1.4rem; color: var(--text); margin-top: .5rem;
}
.login-logo p { color: var(--text-muted); font-size: .9rem; }

.login-form label {
    display: block; font-weight: 600; margin-bottom: .3rem;
    font-size: .85rem; color: var(--text-muted);
}
.login-form input {
    width: 100%; padding: .65rem .9rem;
    border: 1.5px solid var(--border); border-radius: var(--radius-sm);
    font-size: 1rem; margin-bottom: 1rem;
    transition: border-color .15s;
}
.login-form input:focus { outline: none; border-color: var(--accent); }
.login-hint { text-align: center; color: var(--text-muted); font-size: .8rem; margin-top: 1rem; }

/* ---- Student Hero ---- */
.student-hero {
    background: linear-gradient(135deg, var(--accent) 0%, var(--accent-dark) 100%);
    color: #fff; border-radius: var(--radius);
    padding: 2rem; margin-bottom: 2.5rem;
    display: flex; align-items: center; justify-content: space-between;
    gap: 1rem;
}
.hero-greeting h2 { font-family: 'Nunito', sans-serif; font-size: 1.8rem; font-weight: 800; }
.hero-greeting p  { opacity: .85; margin-top: .3rem; }
.hero-greeting strong { font-weight: 800; }

.progress-ring .ring-label {
    font-family: 'Nunito', sans-serif;
    font-size: 14px; font-weight: 800;
    fill: #fff;
}

/* ---- Badge Grid (Schülerseite) ---- */
.badge-section { margin-bottom: 2.5rem; }
.section-heading {
    font-family: 'Nunito', sans-serif; font-weight: 800;
    font-size: 1.1rem; color: var(--text-muted);
    text-transform: uppercase; letter-spacing: .06em;
    margin-bottom: 1rem;
    padding-bottom: .4rem; border-bottom: 2px solid var(--border);
}
.badge-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
    gap: 1rem;
}
.badge-card {
    background: var(--surface); border-radius: var(--radius);
    border: 1.5px solid var(--border);
    padding: 1.2rem; display: flex; gap: 1rem; align-items: flex-start;
    transition: box-shadow .2s, transform .15s;
}
.badge-card.earned {
    border-color: var(--badge-color, var(--accent));
    box-shadow: 0 0 0 1px var(--badge-color, var(--accent)),
                var(--shadow);
}
.badge-card:hover { transform: translateY(-2px); box-shadow: var(--shadow-md); }

.badge-icon-wrap {
    width: 54px; height: 54px; flex-shrink: 0;
    display: flex; align-items: center; justify-content: center;
}
/* Earned: color icon */
.badge-card.earned .badge-icon-wrap svg {
    width: 100%; height: 100%;
    color: var(--badge-color, var(--accent));
}
/* Locked: grayscale */
.badge-card.locked .badge-icon-wrap svg {
    width: 100%; height: 100%;
    color: #ccc;
    filter: grayscale(1);
}

.badge-info { flex: 1; min-width: 0; }
.badge-name { display: block; font-family: 'Nunito', sans-serif; font-weight: 800; font-size: 1rem; }
.badge-desc { color: var(--text-muted); font-size: .85rem; margin-top: .2rem; }
.badge-date {
    display: inline-block; margin-top: .5rem;
    background: var(--accent-light); color: var(--accent);
    font-size: .75rem; font-weight: 700;
    padding: .2rem .5rem; border-radius: 99px;
}
.badge-note {
    display: block; font-size: .8rem; color: var(--text-muted);
    margin-top: .3rem; font-style: italic;
}
.badge-locked-label {
    display: inline-block; margin-top: .5rem;
    background: var(--bg); color: var(--text-muted);
    font-size: .75rem; padding: .2rem .5rem; border-radius: 99px;
}

/* ---- Klassen-Grid (Lehrer) ---- */
.class-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(160px, 1fr));
    gap: 1rem;
}
.class-card {
    background: var(--surface); border: 1.5px solid var(--border);
    border-radius: var(--radius); padding: 1.5rem 1rem;
    text-align: center; text-decoration: none; color: var(--text);
    transition: border-color .15s, box-shadow .15s, transform .15s;
}
.class-card:hover {
    border-color: var(--accent);
    box-shadow: var(--shadow-md);
    transform: translateY(-2px);
}
.class-name { font-family: 'Nunito', sans-serif; font-size: 2rem; font-weight: 800; color: var(--accent); }
.class-year { font-size: .8rem; color: var(--text-muted); margin: .2rem 0; }
.class-count { font-weight: 600; font-size: .9rem; }

/* ---- Schüler-Reihe (Lehreransicht) ---- */
.student-search-bar { margin-bottom: 1rem; }
.search-input {
    width: 100%; max-width: 380px;
    padding: .6rem .9rem;
    border: 1.5px solid var(--border); border-radius: var(--radius-sm);
    font-size: .95rem;
}
.search-input:focus { outline: none; border-color: var(--accent); }

.student-list { display: flex; flex-direction: column; gap: .75rem; }
.student-row {
    background: var(--surface); border: 1.5px solid var(--border);
    border-radius: var(--radius); overflow: hidden;
}
.student-row-header {
    display: flex; align-items: center; gap: .75rem;
    padding: .9rem 1.2rem;
}
.student-avatar {
    width: 36px; height: 36px; border-radius: 50%;
    background: var(--accent-light); color: var(--accent);
    display: flex; align-items: center; justify-content: center;
    font-family: 'Nunito', sans-serif; font-weight: 800; font-size: 1rem;
    flex-shrink: 0;
}
.student-name { font-weight: 700; flex: 1; }
.student-badge-count { font-size: .85rem; color: var(--text-muted); }

/* Badge-Zuweisung Panel */
.student-badges-panel {
    border-top: 1px solid var(--border);
    padding: 1.2rem;
    background: var(--bg);
}
.assign-category { margin-bottom: 1.2rem; }
.assign-category h4 {
    font-size: .8rem; font-weight: 700; text-transform: uppercase;
    letter-spacing: .06em; color: var(--text-muted); margin-bottom: .6rem;
}
.assign-grid {
    display: flex; flex-wrap: wrap; gap: .5rem;
}
.assign-form { display: inline; }
.assign-badge-btn {
    display: inline-flex; flex-direction: column;
    align-items: center; gap: .3rem;
    width: 80px; padding: .5rem .3rem;
    background: var(--surface); border: 1.5px solid var(--border);
    border-radius: var(--radius-sm); cursor: pointer;
    font-size: .7rem; font-weight: 600; color: var(--text-muted);
    transition: border-color .15s, background .15s, transform .1s;
    position: relative;
}
.assign-badge-btn svg { width: 36px; height: 36px; color: #ccc; }
.assign-badge-btn:hover { border-color: var(--accent); background: var(--accent-light); }

.assign-badge-btn.assigned {
    border-color: var(--badge-color, var(--accent));
    background: var(--accent-light);
    color: var(--accent);
}
.assign-badge-btn.assigned svg { color: var(--badge-color, var(--accent)); }
.assign-check {
    position: absolute; top: 4px; right: 6px;
    font-size: .7rem; color: var(--green); font-weight: 800;
}
.assign-badge-label {
    text-align: center; line-height: 1.2;
    display: -webkit-box; -webkit-line-clamp: 2; -webkit-box-orient: vertical;
    overflow: hidden;
}

/* ---- Admin ---- */
.tab-nav {
    display: flex; gap: .25rem; margin-bottom: 2rem;
    border-bottom: 2px solid var(--border);
}
.tab {
    padding: .6rem 1.2rem; font-weight: 600; font-size: .9rem;
    text-decoration: none; color: var(--text-muted);
    border-bottom: 2px solid transparent; margin-bottom: -2px;
    transition: color .15s, border-color .15s;
}
.tab:hover  { color: var(--accent); }
.tab.active { color: var(--accent); border-color: var(--accent); }

.admin-section { margin-bottom: 3rem; }
.admin-section h3 {
    font-family: 'Nunito', sans-serif; font-weight: 800;
    font-size: 1.1rem; margin-bottom: 1rem;
}

.admin-form {
    background: var(--surface); border: 1.5px solid var(--border);
    border-radius: var(--radius); padding: 1.5rem;
    margin-bottom: 1.5rem;
}
.form-row { display: flex; gap: 1rem; flex-wrap: wrap; margin-bottom: .75rem; }
.form-group { flex: 1; min-width: 180px; }
.form-group label {
    display: block; font-size: .82rem; font-weight: 600;
    color: var(--text-muted); margin-bottom: .3rem;
}
.form-group input,
.form-group select,
.form-group textarea {
    width: 100%; padding: .6rem .85rem;
    border: 1.5px solid var(--border); border-radius: var(--radius-sm);
    font-size: .9rem; font-family: inherit;
    transition: border-color .15s;
}
.form-group input:focus,
.form-group select:focus,
.form-group textarea:focus { outline: none; border-color: var(--accent); }

.admin-table {
    width: 100%; border-collapse: collapse;
    background: var(--surface); border-radius: var(--radius);
    overflow: hidden; box-shadow: var(--shadow);
}
.admin-table th {
    background: var(--bg); text-align: left;
    padding: .7rem 1rem; font-size: .82rem; font-weight: 700;
    color: var(--text-muted); text-transform: uppercase; letter-spacing: .04em;
    border-bottom: 1px solid var(--border);
}
.admin-table td {
    padding: .7rem 1rem; border-bottom: 1px solid var(--border);
    font-size: .88rem; vertical-align: middle;
}
.admin-table tr:last-child td { border-bottom: none; }
.admin-table tr:hover td { background: var(--bg); }
.action-cell { display: flex; gap: .5rem; flex-wrap: wrap; align-items: center; }

code { background: var(--bg); padding: .1em .4em; border-radius: 4px; font-size: .85em; }

.color-dot {
    display: inline-block; width: 12px; height: 12px;
    border-radius: 50%; vertical-align: middle;
}
.role-badge {
    padding: .15rem .5rem; border-radius: 99px; font-size: .75rem; font-weight: 700;
}
.role-admin   { background: #FEF3C7; color: #92400E; }
.role-teacher { background: var(--accent-light); color: var(--accent); }

.empty-state {
    text-align: center; padding: 3rem;
    color: var(--text-muted); font-size: 1rem;
    background: var(--surface); border-radius: var(--radius);
    border: 1.5px dashed var(--border);
}
.empty-state a { color: var(--accent); }

/* ---- Responsive ---- */
@media (max-width: 640px) {
    .topbar-school { display: none; }
    .student-hero  { flex-direction: column; }
    .badge-grid    { grid-template-columns: 1fr; }
    .form-row      { flex-direction: column; }
    .class-grid    { grid-template-columns: repeat(2, 1fr); }
    .action-cell   { flex-direction: column; align-items: flex-start; }
}