/* Color Variables for Theming */
:root {
    --bg-color: #f8fafc;
    --text-color: #1e2b3b;
    --text-color-light: #475569;
    --heading-color: #0f172a;
    --card-bg: white;
    --card-border: #e2e8f0;
    --header-bg: rgba(255, 255, 255, 0.8);
    /* KORRIGIERT: Raster-Variablen hinzugefügt */
    --raster-dot: #aebecd;
    --raster-bg: #f2f5f8;
    --nav-dot-bg: #cbd5e1;
    --nav-dot-border: white;
    --tooltip-bg: #1e2b3b;
    --tooltip-text: white;
    --footer-bg: #f1f5f9;
    --tab-active-border: #0ea5e9;
    --tab-hover-border: #9ca3af;
    --tab-text: #6b7280;
    --tab-active-text: #0ea5e9;
}

.dark {
    --bg-color: #0f172a;
    --text-color: #cbd5e1;
    --text-color-light: #94a3b8;
    --heading-color: #f8fafc;
    --card-bg: #1e2b3b;
    --card-border: #334155;
    --header-bg: rgba(15, 23, 42, 0.8);
    /* KORRIGIERT: Raster-Variablen hinzugefügt */
    --raster-dot: #64748b;
    --raster-bg: #0f172a; /* Im Dark Mode ist der Raster-BG = Body-BG */
    --nav-dot-bg: #475569;
    --nav-dot-border: #0f172a;
    --tooltip-bg: #f8fafc;
    --tooltip-text: #1e2b3b;
    --footer-bg: #1e2b3b;
    --tab-active-border: #38bdf8;
    --tab-hover-border: #6b7280;
    --tab-text: #9ca3af;
    --tab-active-text: #38bdf8;
}

/* General Styles */
body {
    font-family: 'Inter', sans-serif;
    background-color: var(--bg-color);
    color: var(--text-color);
    line-height: 1.75;
    transition: background-color 0.3s ease, color 0.3s ease;
}
h1, h2, h3, h4 {
    font-family: 'Outfit', sans-serif;
    color: var(--heading-color);
    letter-spacing: -0.025em;
}

/* KORRIGIERT: Raster-Hintergrund-Definition */
.raster-background {
    background-color: var(--raster-bg);
    background-image: radial-gradient(var(--raster-dot) 1px, transparent 1px);
    background-size: 2.5rem 2.5rem;
}
/* Im Dark Mode soll der Raster-Hintergrund derselbe sein wie der Body-Hintergrund */
.dark .raster-background {
    background-color: var(--bg-color);
    background-image: radial-gradient(var(--raster-dot) 1px, transparent 1px);
}

/* Card Styles */
.section-card {
    background-color: var(--card-bg);
    border-radius: 1.5rem;
    border: 1px solid var(--card-border);
    box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.05), 0 4px 6px -4px rgb(0 0 0 / 0.06);
    transition: all 0.3s ease;
    opacity: 0;
    transform: translateY(30px);
}
.section-card:hover {
    transform: translateY(-5px);
    box-shadow: 0 20px 25px -5px rgb(0 0 0 / 0.08), 0 8px 10px -6px rgb(0 0 0 / 0.08);
}
.section-card.visible {
     opacity: 1;
     transform: translateY(0);
}

/* Icons im Summary */
.icon-svg {
    width: 1.5rem; /* 24px */
    height: 1.5rem; /* 24px */
    flex-shrink: 0;
}
footer .icon-svg { color: #64748b; }

/* KORRIGIERT: Kategorie Icon Farben (Selektor .icon-svg.economy) */
.icon-svg.economy { color: #f59e0b; }
.icon-svg.infrastructure { color: #64748b; }
.icon-svg.digitalization { color: #0ea5e9; }
.icon-svg.education { color: #8b5cf6; }
.icon-svg.society { color: #ec4899; }
.icon-svg.state { color: #14b8a6; }
.icon-svg.security { color: #ef4444; }
.icon-svg.environment { color: #22c55e; }
.icon-svg.health { color: #3b82f6; }
.icon-svg.housing { color: #d97706; }
.icon-svg.transport { color: #64748b; }
.icon-svg.politics { color: #14b8a6; }
.icon-svg.international { color: #0ea5e9; }
.icon-svg.work { color: #f59e0b; }
.icon-svg.default { color: #94a3b8; }


/* Animations */
.fade-in { opacity: 0; transform: translateY(20px); animation: fadeInAnimation 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94) forwards; }
@keyframes fadeInAnimation { to { opacity: 1; transform: translateY(0); } }
.scroll-reveal { opacity: 0; transform: translateY(30px); transition: opacity 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94), transform 0.8s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
.scroll-reveal.visible { opacity: 1; transform: translateY(0); }

/* Styling für Kategorie-Überschriften */
.category-header {
    color: var(--heading-color); display: flex; align-items: center;
    margin-top: 4rem; padding-bottom: 0.5rem; border-bottom: 2px solid var(--card-border);
}
.category-header:first-of-type { margin-top: 0; }
.category-icon { font-size: 1.5em; line-height: 1; }

/* Styling für Details/Accordion im Denk-Anker Stil */
.section-card details > summary {
    list-style: none; cursor: pointer; padding: 1.5rem; border-radius: 0;
    font-family: 'Outfit', sans-serif; font-size: 1.25rem; font-weight: 500;
    display: flex; align-items: center; gap: 1rem; transition: background-color 0.2s ease;
}
.section-card details[open] > summary { background-color: rgba(14, 165, 233, 0.1); }
.section-card details > summary:focus-visible { outline: 2px solid #0ea5e9; outline-offset: -2px; border-radius: 1.5rem 1.5rem 0 0; }
.section-card details:not([open]) > summary:focus-visible { border-radius: 1.5rem; }

/* + Icon Styling */
.section-card details > summary .icon::before {
    content: '+'; font-size: 1.5rem; line-height: 1; transition: transform 0.3s ease;
    display: inline-block; color: var(--text-color-light); margin-left: auto;
}
.section-card details[open] > summary .icon::before { transform: rotate(45deg); }

/* Titel-Text im Summary */
.problem-title-text { /* Nichts extra nötig, erbt vom Summary */ }
.problem-meta { display: none; }

/* Share Button Positionierung */
.share-btn-container { /* Bleibt Teil des rechten Containers */ }

/* Inhalt (details-content) */
.section-card details .details-content { padding: 0 1.5rem; overflow: hidden; display: grid; grid-template-rows: 0fr; transition: grid-template-rows 0.3s ease, padding 0.3s ease; }
.section-card details[open] .details-content { border-top: 1px solid var(--card-border); padding-top: 1.5rem; padding-bottom: 1.5rem; grid-template-rows: 1fr; }
.section-card details .details-content > div { min-height: 0; overflow: hidden; }

/* Listen im Inhalt (erbt jetzt Textfarbe) */
.details-content ul { list-style-type: disc; padding-left: 1.25rem; margin-top: 0.5rem; margin-bottom: 0.5rem; }
.details-content ul li { margin-bottom: 0.25rem; }
.details-content ul > li > strong { color: var(--heading-color); }
/* KORRIGIERT: Standard-Textfarbe für Tab-Inhalte sicherstellen */
.tab-content-panels { color: var(--text-color); }
.dark .tab-content-panels { color: var(--text-color); }


/* --- NEU: Tab Styling --- */
.tab-buttons { display: flex; flex-wrap: wrap; gap: 0.5rem; }
.tab-button {
    padding: 0.5rem 1rem; font-size: 0.95rem; font-weight: 600; border: none; background: none;
    cursor: pointer; border-bottom: 3px solid transparent; color: var(--tab-text);
    transition: color 0.2s ease, border-color 0.2s ease; margin-bottom: -1px; white-space: nowrap;
}
.tab-button:hover { color: var(--heading-color); border-bottom-color: var(--tab-hover-border); }
.tab-button.active { color: var(--tab-active-text); border-bottom-color: var(--tab-active-border); }
.tab-button:focus-visible { outline: 2px solid var(--tab-active-border); outline-offset: 2px; border-radius: 0.25rem; background-color: rgba(14, 165, 233, 0.1); }
.tab-panel { padding-top: 1rem; animation: tabFadeIn 0.3s ease-out; outline: none; }
.tab-panel.hidden { display: none; }
@keyframes tabFadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }
/* --- Ende Tab Styling --- */

/* Header & Navigation */
.sticky-header { position: sticky; top: 0; z-index: 50; background-color: var(--header-bg); backdrop-filter: blur(12px); -webkit-backdrop-filter: blur(12px); border-bottom: 1px solid var(--card-border); }
.dark .sticky-header { border-bottom-color: #334155; }

/* Controls */
.control-btn { padding: 0.5rem; border-radius: 99px; display: flex; align-items: center; justify-content: center; border: 2px solid transparent; transition: all 0.2s ease; background: none; cursor: pointer; }
.control-btn.active { border-color: #0ea5e9; }
.control-btn:hover { background-color: rgba(0,0,0,0.05); }
.dark .control-btn:hover { background-color: rgba(255,255,255,0.1); }
.secondary-btn { font-weight: 500; padding: 0.5rem 1.5rem; border-radius: 99px; border: 2px solid var(--card-border); color: var(--text-color-light); background-color: transparent; transition: all 0.2s ease; cursor: pointer; }
.secondary-btn:hover:not(:disabled) { border-color: var(--text-color-light); background-color: var(--footer-bg); }
.secondary-btn:disabled { opacity: 0.5; cursor: not-allowed; }
.quiz-btn { color: white; font-weight: bold; padding: 0.75rem 2rem; border-radius: 0.5rem; transition: all 0.2s ease; border: none; cursor: pointer; }
.quiz-btn:hover:not(:disabled) { transform: scale(1.05); filter: brightness(1.1); }
.quiz-btn:disabled { opacity: 0.5; cursor: not-allowed; }

/* Side Navigation */
#side-nav-wrapper { position: fixed; top: 50%; right: 1.5rem; transform: translateY(-50%); z-index: 40; display: none; flex-direction: column; align-items: flex-end; gap: 0.75rem; }
@media (min-width: 1024px) { #side-nav-wrapper { display: flex; } }
#side-nav { display: flex; flex-direction: column; gap: 0.75rem; }
.nav-dot { width: 28px; height: 28px; background-color: var(--nav-dot-bg); border-radius: 99px; border: 2px solid var(--nav-dot-border); cursor: pointer; transition: all 0.3s ease; position: relative; display: flex; align-items: center; justify-content: center; font-family: 'Outfit', sans-serif; font-weight: 600; font-size: 1.1rem; color: var(--text-color-light); padding: 0; line-height: 1; }
.dark .nav-dot { color: var(--text-color-light); }
.nav-dot::before { content: none; }
.nav-dot:hover, .nav-dot.active { background-color: #0ea5e9; transform: scale(1.1); box-shadow: 0 0 0 3px rgba(14, 165, 233, 0.2); color: white; }
.nav-tooltip { position: absolute; top: 50%; right: 150%; transform: translateY(-50%); background-color: var(--tooltip-bg); color: var(--tooltip-text); padding: 0.25rem 0.75rem; border-radius: 0.5rem; font-size: 0.875rem; white-space: nowrap; opacity: 0; visibility: hidden; transition: opacity 0.2s ease, visibility 0.2s ease; z-index: 10; }
.nav-dot:hover .nav-tooltip { opacity: 1; visibility: visible; }
.category-nav-dot { }

/* Share Popover */
.share-popover { position: absolute; background-color: var(--card-bg); border: 1px solid var(--card-border); border-radius: 0.75rem; box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.1), 0 4px 6px -4px rgb(0 0 0 / 0.1); z-index: 60; display: flex; padding: 0.5rem; gap: 0.5rem; opacity: 0; visibility: hidden; transform: translateY(10px); transition: all 0.2s ease; }
.share-popover.visible { opacity: 1; visibility: visible; transform: translateY(0); }
.share-popover a, .share-popover button { padding: 0.5rem; border-radius: 99px; display: flex; align-items: center; justify-content: center; transition: background-color 0.2s ease; }
.share-popover a:hover, .share-popover button:hover { background-color: rgba(0,0,0,0.05); }
.dark .share-popover a:hover, .dark .share-popover button:hover { background-color: rgba(255,255,255,0.1); }
.share-btn-container { position: relative; }
.share-btn { background: none; border: none; cursor: pointer; padding: 0.5rem; border-radius: 99px; color: #94a3b8; transition: background-color 0.2s, color 0.2s; }
.share-btn:hover { background-color: rgba(0,0,0,0.05); color: #0ea5e9; }
.dark .share-btn:hover { background-color: rgba(255,255,255,0.1); color: #38bdf8; }

/* --- OTHER & FOOTER STYLES --- */
footer { background-color: var(--footer-bg); }
.feedback-textarea { width: 100%; background-color: var(--bg-color); border: 1px solid var(--card-border); border-radius: 0.75rem; padding: 0.75rem 1rem; color: var(--text-color); resize: vertical; }
.feedback-textarea:focus { outline: none; border-color: #0ea5e9; box-shadow: 0 0 0 2px rgba(14, 165, 233, 0.3); }

#toast { position: fixed; bottom: 2rem; left: 50%; transform: translateX(-50%) translateY(200%); background-color: #0f172a; color: white; padding: 1rem 2rem; border-radius: 0.75rem; box-shadow: 0 10px 15px -3px rgb(0 0 0 / 0.2), 0 4px 6px -4px rgb(0 0 0 / 0.2); z-index: 100; transition: transform 0.5s cubic-bezier(0.25, 0.46, 0.45, 0.94); }
#toast.show { transform: translateX(-50%) translateY(0); }
.close-btn { position: absolute; top: 1rem; right: 1rem; background: var(--card-border); border: none; width: 2.5rem; height: 2.5rem; border-radius: 99px; cursor: pointer; display: flex; align-items: center; justify-content: center; z-index: 10; transition: background-color 0.2s ease; }
.close-btn:hover { background-color: #e2e8f0; }
.dark .close-btn { background: #334155; }
.dark .close-btn:hover { background-color: #475569; }

footer button.underline { background: none; border: none; padding: 0; font: inherit; color: inherit; cursor: pointer; text-decoration: underline; }
footer button.underline:hover { color: #0ea5e9; }

/* Mobile Navigation */
#mobile-nav-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(15, 23, 42, 0.95); z-index: 98; display: flex; align-items: center; justify-content: center; padding: 1rem; opacity: 0; visibility: hidden; transition: opacity 0.3s ease, visibility 0.3s ease; }
#mobile-nav-overlay.show { opacity: 1; visibility: visible; }
#mobile-nav-content { display: flex; flex-direction: column; gap: 1.5rem; text-align: center; }
#mobile-nav-content a { color: white; font-size: 1.5rem; font-weight: bold; font-family: 'Outfit', sans-serif; opacity: 0; transform: translateY(15px); transition: opacity 0.3s ease, transform 0.3s ease; display: flex; align-items: center; justify-content: center; }
#mobile-nav-overlay.show #mobile-nav-content a { opacity: 1; transform: translateY(0); }
@media (max-width: 1023px) { #side-nav-wrapper { display: none; } }

/* Back to Top Button */
#back-to-top { position: fixed; bottom: 1.5rem; right: 1.5rem; background-color: var(--card-bg); color: #0ea5e9; border: 2px solid var(--card-border); width: 3.5rem; height: 3.5rem; border-radius: 9999px; cursor: pointer; display: flex; align-items: center; justify-content: center; box-shadow: 0 4px 10px rgba(0, 0, 0, 0.1); transition: opacity 0.3s ease, transform 0.3s ease, color 0.3s, background-color 0.3s; z-index: 99; }
#back-to-top.hidden { opacity: 0; transform: scale(0.5); pointer-events: none; }
#back-to-top:hover { background-color: #0ea5e9; border-color: #0ea5e9; color: white; transform: scale(1.1); }

/* --- Modal Styles --- */
.modal-overlay { position: fixed; top: 0; left: 0; width: 100%; height: 100%; background-color: rgba(15, 23, 42, 0.85); z-index: 110; display: flex; align-items: center; justify-content: center; padding: 1rem; opacity: 0; visibility: hidden; transition: opacity 0.3s ease, visibility 0.3s ease; }
.modal-overlay.show { opacity: 1; visibility: visible; }
.modal-content, .modal-content-lg { background-color: var(--card-bg); padding: 2rem; border-radius: 1.5rem; max-width: 600px; width: 100%; position: relative; transform: scale(0.95); transition: transform 0.3s ease; }
.modal-content-lg { max-width: 800px; max-height: 90vh; overflow-y: auto; }
.modal-overlay.show .modal-content, .modal-overlay.show .modal-content-lg { transform: scale(1); }

/* Fokus Styles für Barrierefreiheit */
.modal-overlay .close-btn:focus-visible { outline: 3px solid #0ea5e9; outline-offset: 2px; background-color: #e0f2fe; border-radius: 9999px; }
.dark .modal-overlay .close-btn:focus-visible { background-color: #334155; }
.modal-content a:focus-visible, .modal-content button:focus-visible,
.modal-content-lg a:focus-visible, .modal-content-lg button:focus-visible { outline: 3px solid #0ea5e9; outline-offset: 2px; border-radius: 0.375rem; }
.modal-content .close-btn:focus-visible, .modal-content-lg .close-btn:focus-visible { border-radius: 9999px; }

/* Related Problem Links */
.related-problem-link { display: inline-block; background-color: var(--card-border); padding: 0.25rem 0.75rem; border-radius: 99px; font-size: 0.875rem; margin-right: 0.5rem; margin-bottom: 0.5rem; transition: background-color 0.2s ease, color 0.2s ease; text-decoration: none; color: var(--text-color-light); }
.related-problem-link:hover { background-color: #0ea5e9; color: white; }
.dark .related-problem-link { background-color: #334155; color: var(--text-color); }
.dark .related-problem-link:hover { background-color: #38bdf8; color: #0f172a; }

/* Feinabstimmung Abstände im Content */
.details-content h3 { margin-bottom: 0.75rem !important; margin-top: 1.5rem; }
.details-content h4 { margin-bottom: 0.25rem !important; margin-top: 1rem; }
.details-content section:first-of-type h3 { margin-top: 0; }
.details-content section:first-of-type h4 { margin-top: 0; }
.details-content section { padding-bottom: 1rem; margin-bottom: 1rem; border-bottom: 1px dashed var(--card-border); }
.details-content section:last-of-type { border-bottom: none; margin-bottom: 0; padding-bottom: 0; }