/* ============================================
   App-Infoseiten – gemeinsame Styles
   Passend zur Hauptseite (custom.css)
   Farbschema: #15344b (dunkelblau), yellowgreen (Akzent), #fff
   ============================================ */

/* Hero-Bereich */
.app-hero {
    background-color: #15344b;
    color: #fff;
    padding: 120px 0 60px;
    text-align: center;
}

.app-hero .app-icon {
    font-size: 64px;
    color: yellowgreen;
    display: block;
    margin-bottom: 20px;
}

.app-hero h1 {
    font-size: 36px;
    font-weight: 300;
    margin-bottom: 15px;
    letter-spacing: 0.02em;
}

.app-hero .app-teaser {
    font-size: 17px;
    font-weight: 300;
    color: rgba(255,255,255,0.8);
    max-width: 700px;
    margin: 0 auto;
    line-height: 1.6;
}

@media(min-width:768px) {
    .app-hero h1 {
        font-size: 48px;
    }
    .app-hero .app-teaser {
        font-size: 18px;
    }
}

/* Screenshot-Bereich */
.app-screenshot-section {
    padding: 50px 0;
    background-color: #f8f9fa;
}

.app-screenshot-placeholder {
    background-color: #e9ecef;
    border: 2px dashed #ced4da;
    border-radius: 10px;
    padding: 60px 20px;
    text-align: center;
    color: #6c757d;
    max-width: 700px;
    margin: 0 auto;
}

.app-screenshot-placeholder .glyphicon {
    font-size: 48px;
    display: block;
    margin-bottom: 15px;
    color: #adb5bd;
}

.app-screenshot-img {
    max-width: 100%;
    height: auto;
    border-radius: 10px;
    box-shadow: 0 4px 20px rgba(0,0,0,0.1);
    display: block;
    margin: 0 auto;
}

/* Live-Vorschau iframe */
.app-preview-wrapper {
    max-width: 900px;
    margin: 0 auto;
    border-radius: 12px;
    overflow: hidden;
    box-shadow: 0 4px 25px rgba(0,0,0,0.12);
    border: 1px solid #dee2e6;
    background: #fff;
}

.app-preview-bar {
    background: #f1f3f5;
    padding: 8px 15px;
    display: flex;
    align-items: center;
    gap: 6px;
    border-bottom: 1px solid #dee2e6;
}

.app-preview-dot {
    width: 10px;
    height: 10px;
    border-radius: 50%;
    display: inline-block;
}

.app-preview-dot.red { background: #ff5f57; }
.app-preview-dot.yellow { background: #ffbd2e; }
.app-preview-dot.green { background: #28c840; }

.app-preview-bar span.preview-label {
    margin-left: 10px;
    font-size: 12px;
    color: #868e96;
    font-weight: 400;
}

.app-preview-iframe {
    width: 100%;
    height: 500px;
    border: none;
    display: block;
}

@media(max-width:767px) {
    .app-preview-iframe {
        height: 350px;
    }
}

/* Inhaltsbereich */
.app-content {
    padding: 60px 0;
}

.app-content h2 {
    color: #15344b;
    font-size: 24px;
    font-weight: 600;
    margin-top: 45px;
    margin-bottom: 18px;
    padding-bottom: 8px;
    border-bottom: 2px solid yellowgreen;
    display: inline-block;
}

.app-content h2:first-of-type {
    margin-top: 0;
}

.app-content p {
    font-size: 16px;
    line-height: 1.7;
    color: #333;
    margin-bottom: 16px;
}

.app-content .content-wrapper {
    max-width: 800px;
    margin: 0 auto;
}

/* Info-Karten (Klassenstufen / Einsatz) */
.app-info-cards {
    padding: 50px 0;
    background-color: #f8f9fa;
}

.app-info-card {
    background: #fff;
    border-radius: 10px;
    padding: 30px 25px;
    box-shadow: 0 2px 12px rgba(0,0,0,0.06);
    height: 100%;
}

.app-info-card .card-icon {
    font-size: 36px;
    color: yellowgreen;
    display: block;
    margin-bottom: 15px;
}

.app-info-card h3 {
    font-size: 18px;
    font-weight: 600;
    color: #15344b;
    margin-bottom: 12px;
}

.app-info-card p {
    font-size: 15px;
    line-height: 1.6;
    color: #555;
    margin-bottom: 0;
}

/* CTA-Bereich */
.app-cta {
    padding: 60px 0;
    background-color: #15344b;
    text-align: center;
    color: #fff;
}

.app-cta h2 {
    font-size: 28px;
    font-weight: 300;
    margin-bottom: 25px;
    border: none;
    display: block;
    color: #fff;
}

.app-cta .btn-start {
    display: inline-block;
    padding: 16px 40px;
    font-size: 18px;
    font-weight: 600;
    color: #fff;
    background-color: yellowgreen;
    border: none;
    border-radius: 300px;
    text-transform: uppercase;
    text-decoration: none;
    transition: all .35s;
    letter-spacing: 0.05em;
}

.app-cta .btn-start:hover {
    background-color: limegreen;
    transform: translateY(-2px);
    box-shadow: 0 6px 20px rgba(154,205,50,0.4);
}

.app-cta .browser-hint {
    display: block;
    margin-top: 15px;
    font-size: 14px;
    color: rgba(255,255,255,0.6);
    font-weight: 300;
}

.app-cta .btn-back {
    display: inline-block;
    margin-top: 20px;
    font-size: 14px;
    color: rgba(255,255,255,0.7);
    text-decoration: none;
    transition: color .35s;
}

.app-cta .btn-back:hover {
    color: yellowgreen;
}

/* Navbar für Unterseiten (fest, nicht transparent) */
.app-page .navbar-default {
    background-color: #fff;
    border-color: rgba(34,34,34,.05);
    box-shadow: 0px 4px 15px 0px rgba(0,0,0,0.08);
}

.app-page .navbar-default .navbar-header .navbar-brand {
    color: #15344b;
    letter-spacing: 0;
}

.app-page .navbar-default .navbar-header .navbar-brand:hover {
    color: yellowgreen;
}

.app-page .navbar-default .nav > li > a {
    color: #15344b;
}

.app-page .navbar-default .nav > li > a:hover {
    color: yellowgreen;
}

/* Footer (konsistent mit Hauptseite) */
.app-page .page-footer {
    text-align: center;
}

.app-page .page-footer .small-print {
    padding: 30px 0;
    font-weight: 300;
    font-size: 14px;
    color: #666;
}

/* VG Wort Platzhalter */
.vgwort-placeholder {
    display: none;
}