/**
 * Blueprint Accordion
 * ===================
 * Modernes, anpassbares Akkordeon-System mit Listen-Struktur
 * 
 * EINFACHE ANPASSUNG:
 * Ändere die Farben in den CSS Custom Properties unten!
 */

/* ============================================
   LAYOUT STYLES
   ============================================ */

.blueprint-accordion {
    list-style: none;
    padding: 0;
    margin: 0 0 1.5rem 0;
}

.blueprint-accordion > li {
    list-style: none;
    margin: 0;
    padding: 0;
}


/* ============================================
   FARBVARIABLEN (HIER ANPASSEN!)
   ============================================ */

:root {
    /* Accordion Farben (Light Mode) */
    --accordion-bg: #ffffff;              /* Hintergrund */
    --accordion-border: #dee2e6;          /* Rahmen */
    --accordion-header-bg: #f8f9fa;       /* Header Hintergrund */
    --accordion-header-hover: #e9ecef;    /* Header Hover */
    --accordion-header-active: #007bff;   /* Header Aktiv */
    --accordion-text: #212529;            /* Text Farbe */
    --accordion-text-active: #ffffff;     /* Text Aktiv */
    --accordion-icon: #6c757d;            /* Icon Farbe */
    --accordion-icon-active: #ffffff;     /* Icon Aktiv */
    --accordion-content-bg: #ffffff;      /* Content Hintergrund */
    --accordion-shadow: rgba(0,0,0,0.05); /* Schatten */
}

/* Dark Mode Farben */
[data-theme="dark"] {
    --accordion-bg: #2d2d2d;
    --accordion-border: #495057;
    --accordion-header-bg: #1a1a1a;
    --accordion-header-hover: #343a40;
    --accordion-header-active: #4dabf7;
    --accordion-text: #e9ecef;
    --accordion-text-active: #ffffff;
    --accordion-icon: #adb5bd;
    --accordion-icon-active: #ffffff;
    --accordion-content-bg: #2d2d2d;
    --accordion-shadow: rgba(0,0,0,0.3);
}


/* ============================================
   ACCORDION ITEM (LI)
   ============================================ */

.blueprint-accordion > li {
    background: var(--accordion-bg);
    border: 1px solid var(--accordion-border);
    border-radius: 8px;
    margin-bottom: 0;  /* Kein Margin zwischen Items */
    overflow: hidden;
    box-shadow: 0 2px 4px var(--accordion-shadow);
    transition: box-shadow 0.3s ease;
}

.blueprint-accordion > li:hover {
    box-shadow: 0 4px 8px var(--accordion-shadow);
}

.blueprint-accordion > li:not(:last-child) {
    border-bottom: none;  /* Keine doppelten Borders */
    border-bottom-left-radius: 0;
    border-bottom-right-radius: 0;
}

.blueprint-accordion > li:not(:first-child) {
    border-top-left-radius: 0;
    border-top-right-radius: 0;
}


/* ============================================
   ACCORDION HEADER (Button)
   ============================================ */

.accordion-header {
    width: 100%;
    background: var(--accordion-header-bg);
    border: none;
    padding: 1.25rem 1.5rem;
    text-align: left;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: space-between;
    font-size: 1.125rem;
    font-weight: 600;
    color: var(--accordion-text);
    transition: all 0.3s ease;
    border-bottom: 1px solid transparent;
}

.accordion-header:hover {
    background: var(--accordion-header-hover);
}

.accordion-header.active {
    background: var(--accordion-header-active);
    color: var(--accordion-text-active);
    border-bottom-color: var(--accordion-border);
}

/* Entferne blauen Focus Border */
.accordion-header:focus {
    outline: none;
}

.accordion-header:focus-visible {
    outline: 2px solid var(--accordion-header-active);
    outline-offset: -2px;
}


/* ============================================
   ACCORDION TITLE
   ============================================ */

.accordion-title {
    flex: 1;
    margin: 0;
    padding-right: 1rem;
}

.accordion-subtitle {
    display: block;
    font-size: 0.875rem;
    font-weight: 400;
    opacity: 0.8;
    margin-top: 0.25rem;
}


/* ============================================
   ACCORDION ICON
   ============================================ */

.accordion-icon {
    flex-shrink: 0;
    width: 24px;
    height: 24px;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--accordion-icon);
    font-size: 1.25rem;
    transition: color 0.3s ease;
}

/* Icon wechselt von Plus zu Minus */
.accordion-header:not(.active) .accordion-icon .fa-minus {
    display: none;
}

.accordion-header:not(.active) .accordion-icon .fa-plus {
    display: inline-block;
}

.accordion-header.active .accordion-icon .fa-plus {
    display: none;
}

.accordion-header.active .accordion-icon .fa-minus {
    display: inline-block;
}

.accordion-header.active .accordion-icon {
    color: var(--accordion-icon-active);
}

/* ============================================
   ACCORDION CONTENT
   ============================================ */

.accordion-content {
    max-height: 0;
    overflow: hidden;
    transition: max-height 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    background: var(--accordion-content-bg);
    color: var(--accordion-text);
}

.accordion-content.active {
    max-height: 3000px;
}

.accordion-content-inner {
    padding: 0;
    transition: padding 0.5s cubic-bezier(0.4, 0, 0.2, 1);
    line-height: 1.6;
}

.accordion-content.active .accordion-content-inner {
    padding: 1.5rem;
}

.accordion-content-inner p:last-child {
    margin-bottom: 0;
}
.accordion-content-inner li {
    margin-bottom: 0.5rem;
}


/* ============================================
   ACCORDION VARIATIONS
   ============================================ */

/* Compact Style */
.blueprint-accordion.compact .accordion-header {
    padding: 1rem 1.25rem;
    font-size: 1rem;
}

.blueprint-accordion.compact .accordion-content.active .accordion-content-inner {
    padding: 1rem 1.25rem;
}

/* Bordered Style */
.blueprint-accordion.bordered > li {
    border: 2px solid var(--accordion-border);
}

/* No Shadow Style */
.blueprint-accordion.no-shadow > li {
    box-shadow: none;
}

/* Flat Style */
.blueprint-accordion.flat > li {
    border-radius: 0;
    box-shadow: none;
}

.blueprint-accordion.flat > li {
    margin-bottom: 0;
    border-bottom: none;
}

.blueprint-accordion.flat > li:last-child {
    border-bottom: 1px solid var(--accordion-border);
}

/* Spaced Style (mit Abstand zwischen Items) */
.blueprint-accordion.spaced > li {
    margin-bottom: 1rem;
    border-radius: 8px;
}

.blueprint-accordion.spaced > li:not(:last-child) {
    border-bottom: 1px solid var(--accordion-border);
    border-bottom-left-radius: 8px;
    border-bottom-right-radius: 8px;
}

.blueprint-accordion.spaced > li:not(:first-child) {
    border-top-left-radius: 8px;
    border-top-right-radius: 8px;
}

.blueprint-accordion.spaced > li:last-child {
    margin-bottom: 0;
}


/* ============================================
   RESPONSIVE
   ============================================ */

@media (max-width: 768px) {
    .accordion-header {
        padding: 1rem;
        font-size: 1rem;
    }
    
    .accordion-content.active {
        padding: 0;
    }
    
    .accordion-icon {
        width: 20px;
        height: 20px;
        font-size: 1rem;
    }
}


/* ============================================
   ACCESSIBILITY
   ============================================ */

.accordion-header[aria-expanded="true"] {
    /* Zusätzliche Styles für aktiven Zustand */
}

@media (prefers-reduced-motion: reduce) {
    .accordion-header,
    .accordion-content,
    .accordion-icon {
        transition: none;
    }
}


/* ============================================
   PRINT STYLES
   ============================================ */

@media print {
    .accordion-content {
        max-height: none !important;
        padding: 1rem !important;
        display: block !important;
    }
    
    .accordion-icon {
        display: none;
    }
}


/* ============================================
   ALTERNATIVE FARBSCHEMATA (Optional)
   Kommentiere das gewünschte Schema aus!
   ============================================ */

/* Schema 1: Blau-Akzente */
/*
:root {
    --accordion-header-active: #007bff;
    --accordion-text-active: #ffffff;
}
*/

/* Schema 2: Grün-Akzente */
/*
:root {
    --accordion-header-active: #28a745;
    --accordion-text-active: #ffffff;
}
*/

/* Schema 3: Orange-Akzente */
/*
:root {
    --accordion-header-active: #fd7e14;
    --accordion-text-active: #ffffff;
}
*/

/* Schema 4: Minimalistisch (nur Border) */
/*
:root {
    --accordion-header-bg: transparent;
    --accordion-header-hover: #f8f9fa;
    --accordion-header-active: transparent;
    --accordion-text-active: #007bff;
}
.accordion-header.active {
    border-bottom-color: #007bff;
    border-bottom-width: 2px;
}
*/
/* ============================================
   MOBILE PERFORMANCE OPTIMIERUNG
   ============================================ */

@media (max-width: 768px) {
    .accordion-content {
        transition: max-height 0.3s ease-out !important;
    }
    
    .accordion-content-inner {
        transition: padding 0.3s ease-out !important;
    }
}
/* ============================================
   MOBILE FIX - Kein Padding Transition
   ============================================ */

@media (max-width: 768px) {
    .accordion-content {
        transition: max-height 0.25s ease-out;
    }
    
    .accordion-content-inner {
        transition: none !important;  /* KEINE Padding Animation! */
    }
}