:root {
    --header-height: 4.0rem; /* Navbar-Höhe für Overlays (Spickzettel startet darunter) */
}

html {
    scroll-padding-top: 5.5rem; /* Abstand für sticky Navbar beim Anker-Scroll (#lernpfad, #pruefungssimulation, etc.) */
}

body {
    font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

.main-header {
    z-index: 10000; /* über Spickzettel-Overlay (z-index 9999) */
}

.sticky-top.shadow-sm-sm {
    box-shadow: 0 0.25rem 0.75rem rgba(15, 23, 42, 0.03);
}

body.navbar-compact .sticky-top .navbar {
    padding-top: 0.35rem !important;
    padding-bottom: 0.35rem !important;
    transition: padding 0.2s ease-in-out;
}

body.navbar-compact .navbar-brand span:last-child {
    font-size: 0.95rem;
}

.brand-mark {
    width: 32px;
    height: 32px;
    background: url("../bilder/easy-verwalter.png") center / contain no-repeat;
}

.divider-vertical {
    width: 1px;
    height: 28px;
    background: rgba(148, 163, 184, 0.5);
    display: inline-block;
}

.bg-gradient-light {
    background: linear-gradient(135deg, #f8fafc 0%, #ffffff 40%, #f1f5f9 100%);
}

.hero-section {
    position: relative;
    overflow: hidden;
}

.hero-section::after {
    content: "";
    position: absolute;
    right: -160px;
    top: -120px;
    width: 360px;
    height: 360px;
    border-radius: 999px;
    background: radial-gradient(circle at center, rgba(37, 99, 235, 0.14), transparent 60%);
    pointer-events: none;
}

.hero-card {
    border-radius: 1rem;
}

.hero-badge {
    background: rgba(15, 23, 42, 0.02);
    border-radius: 999px;
    padding: 0.25rem 0.75rem;
}

.hero-search-group .form-control:disabled {
    background-color: #ffffff;
    cursor: not-allowed;
}

.hero-search-group .form-control,
.hero-search-group .input-group-text {
    border-radius: 999px;
}

.status-dot {
    width: 10px;
    height: 10px;
    border-radius: 999px;
    display: inline-block;
}

.topic-card,
.checklist-card {
    border-radius: 0.75rem;
}

.topic-card:hover,
.checklist-card:hover {
    transform: translateY(-2px);
    box-shadow: 0 0.5rem 1.5rem rgba(15, 23, 42, 0.08);
    transition: all 0.15s ease-out;
}

.topics-grid-wrapper {
    margin-top: 0.75rem;
}

.topic-index {
    font-weight: 600;
    letter-spacing: 0.08em;
}

footer a:hover {
    text-decoration: underline;
}

@media (max-width: 767.98px) {
    .hero-section::after {
        right: -120px;
        top: -140px;
        width: 260px;
        height: 260px;
    }
}

/* Prüfung: Spickzettel-Spalte */
.pruefung-spickzettel {
    background: linear-gradient(180deg, #f8fafc 0%, #ffffff 120px) !important;
    border: 3px solid #e2e8f0;
    box-shadow: -0.25rem 1 3rem rgba(15, 23, 42, 0.04);
}
.pruefung-spickzettel-header {
    padding: 1.5rem 1.25rem 1rem;
    border-bottom: 0.5px solid rgba(15, 23, 42, 0.08);
    background: rgba(255, 255, 255, 0.85);
}
.pruefung-spickzettel-title {
    font-size: 0.95rem;
    font-weight: 600;
    color: #0f172a;
    margin: 0;
    letter-spacing: -0.01em;
}
.pruefung-spickzettel-textarea {
    border: 0.5px solid #e2e8f0;
    border-radius: 0.5rem;
    padding: 1rem;
    font-size: 0.875rem;
    line-height: 1.55;
    background: #ffffff;
    transition: border-color 0.15s ease, box-shadow 0.15s ease;
}
.pruefung-spickzettel-textarea:focus {
    border-color: #2563eb;
    box-shadow: 0 0 0 3px rgba(37, 99, 235, 0.12);
    outline: 0;
}
.pruefung-spickzettel-textarea::placeholder {
    color: #94a3b8;
}