:root {
    --primary-color: #2563eb;
    --secondary-color: #4b5563;
    --background-color: #ffffff;
    --text-color: #1f2937;
    --card-bg: #f8f9fa;
    --border-color: #e5e7eb;
    --link-color: #3b82f6;
    --link-hover-color: #1d4ed8;
    --positive: #16a34a;
    --negative: #dc2626;
}

[data-bs-theme="dark"] {
    --background-color: #111827;
    --text-color: #f3f4f6;
    --card-bg: #1f2937;
    --border-color: #374151;
    --link-color: #60a5fa;
    --link-hover-color: #3b82f6;
    --positive: #22c55e;
    --negative: #ef4444;
}

.navbar {
    background-color: var(--background-color) !important;
    border-bottom: 3px solid var(--primary-color);
}

/* Hero Section Compact */
.hero-compact {
    margin: 1rem 0 2rem;
    position: relative;
    overflow: hidden;
    border-radius: 12px;
    background: linear-gradient(135deg, var(--primary-color) 0%, #1e40af 100%);
    border: 1px solid var(--border-color);
}

.hero-content {
    padding: 2rem 1rem;
    position: relative;
    z-index: 1;
}

.hero-title {
    font-size: 1.8rem;
    font-weight: 700;
    color: white;
    margin-bottom: 0.75rem;
}

.hero-subtitle {
    font-size: 1.1rem;
    color: rgba(255,255,255,0.9);
    max-width: 600px;
    margin: 0 auto 1.5rem;
    line-height: 1.4;
}

.hero-cta {
    padding: 0.6rem 1.5rem;
    font-size: 1rem;
    background: rgba(255,255,255,0.9);
    color: var(--primary-color);
    border: none;
    border-radius: 8px;
    transition: all 0.3s ease;
    display: inline-flex;
    align-items: center;
    gap: 0.5rem;
}

.hero-cta:hover {
    background: white;
    transform: translateY(-2px);
}

@media (max-width: 768px) {
    .hero-title {
        font-size: 1.5rem;
    }
    
    .hero-subtitle {
        font-size: 1rem;
        padding: 0 1rem;
    }
    
    .hero-content {
        padding: 1.5rem 1rem;
    }
}

/* Karten-Stile */
.card {
    border: 1px solid #b0c5d5;
    border-radius: 6px;
    padding: 15px;
    margin: 10px;
    flex: 1 1 calc(33% - 20px);
    background-color: #f8f9fc;
    color: #33495b;
}

.card-header {
    padding: 10px;
    border-bottom: 1px solid #ccd7e4;
    font-size: 1.1em;
    color: #102a3a;
    background-color: #f0f5f9;
}

.card-body {
    padding: 15px;
    color: #4f5d6b;
}

.cards-container {
    display: flex;
    flex-wrap: wrap;
    gap: 15px;
}

.card-intro {
    background-color: #e0f1fd;
    color: #2c3e50;
    padding: 30px;
    border-radius: 6px;
    margin-bottom: 50px;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.card-intro h4 {
    color: #2c3e50;
    font-size: 1.3em;
    margin-bottom: 15px;
}

.card-item {
    background-color: #e1efff;
    border-radius: 6px;
    padding: 20px;
    display: flex;
    flex-direction: column;
    position: relative;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.1);
}

.card-item .btn-info {
    position: absolute;
    bottom: 15px;
    right: 15px;
    background-color: #bddaf3;
    color: #102a3a;
    border: 1px solid #102a3a;
    font-size: 1em;
    z-index: 2;
}

.card-item .btn-info:hover {
    background-color: #102a3a;
    color: #fff;
}

/* Cursor auf der Homepage ändern */
.card-item img {
    cursor: zoom-in;
}

/* Karten im Dark Mode */
[data-bs-theme="dark"] .card {
    background-color: #1e1e1e;
    color: #e1e1e1;
    border: 1px solid #333;
}

[data-bs-theme="dark"] .card-header {
    background-color: #2c3e50;
    color: #f39c12;
    border-bottom: 1px solid #444;
}

[data-bs-theme="dark"] .card-body {
    color: #e1e1e1;
}

/* Einführung zu Technische Analyse im Dark Mode */
[data-bs-theme="dark"] .card-intro {
    background-color: #1c2833;
    color: #cfcfcf;
}

/* Dark Mode Styles */
[data-bs-theme="dark"] .card-intro h4 {
    color: #9db9d5;
}

/* Einzelne Formationen im Dark Mode */
[data-bs-theme="dark"] .card-item {
    background-color: #1b2631;
    color: #e1e1e1;
    box-shadow: 0 4px 8px rgba(0, 0, 0, 0.2);
    border: 1px solid #34495e;
}

[data-bs-theme="dark"] .card-item .btn-info {
    background-color: #102a3a;
    color: #7aafdd;
    border: 1px solid #7aafdd;
}

[data-bs-theme="dark"] .card-item .btn-info:hover {
    background-color: #7aafdd;
    color: #102a3a;
}

/* Finanzspezifische Komponenten */
.financial-card {
    background: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 1.5rem;
    margin-bottom: 1.5rem;
}

.positive {
    color: var(--positive);
}

.negative {
    color: var(--negative);
}

/* Responsive Grid */
.grid-2col {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
    gap: 1.5rem;
}

[data-bs-theme="dark"] {
    /* Existierende Dark-Mode Variablen... */
    
    /* Neue Hero-spezifische Variablen */
    --hero-bg-start: #1e3a8a;
    --hero-bg-end: #1e1b4b;
    --hero-border-color: rgba(255,255,255,0.1);
    --hero-cta-bg: rgba(255,255,255,0.15);
    --hero-cta-color: #e0e7ff;
}

/* Hero Section Anpassungen für Dark-Mode */
[data-bs-theme="dark"] .hero-compact {
    background: linear-gradient(
        135deg, 
        var(--hero-bg-start) 0%, 
        var(--hero-bg-end) 100%
    );
    border-color: var(--hero-border-color);
}

[data-bs-theme="dark"] .hero-cta {
    background: var(--hero-cta-bg);
    color: var(--hero-cta-color);
    backdrop-filter: blur(4px);
}

[data-bs-theme="dark"] .hero-cta:hover {
    background: rgba(255,255,255,0.2);
    color: white;
}

[data-bs-theme="dark"] .hero-title {
    text-shadow: 0 2px 4px rgba(0,0,0,0.3);
}

[data-bs-theme="dark"] .hero-subtitle {
    color: rgba(255,255,255,0.85);
}

/* Allgemeine Styles für den Donation-Bereich */
.card-intro {
    font-family: sans-serif;
}

.card-intro h5 {
    font-weight: bold;
    margin-bottom: 10px;
}

.card-intro p {
    font-size: 1rem;
    line-height: 1.5;
}

/* Optional: optische Aufwertung der QR-Code Container */
.card-item {
    background-color: var(--card-bg);
    border: 1px solid var(--border-color);
    border-radius: 8px;
    padding: 10px;
    box-shadow: 0 2px 4px rgba(0,0,0,0.1);
}

/* Bilder (QR-Codes) schön abgerundet */
.card-item img {
    border-radius: 8px;
    border: 1px solid var(--border-color);
}