/* =============================================================================
   Software-Verzeichnis - Hauptstyles
   ============================================================================= */

/* -----------------------------------------------------------------------------
   CSS Custom Properties (Variablen)
   ----------------------------------------------------------------------------- */
:root {
    /* Primärfarben */
    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: #eef2ff;

    /* Sekundärfarben */
    --secondary: #8b5cf6;
    --secondary-hover: #7c3aed;

    /* Akzentfarben */
    --accent: #06b6d4;
    --accent-hover: #0891b2;

    /* Grautöne */
    --gray-50: #f9fafb;
    --gray-100: #f3f4f6;
    --gray-200: #e5e7eb;
    --gray-300: #d1d5db;
    --gray-400: #9ca3af;
    --gray-500: #6b7280;
    --gray-600: #4b5563;
    --gray-700: #374151;
    --gray-800: #1f2937;
    --gray-900: #111827;

    /* Statusfarben */
    --success: #10b981;
    --warning: #f59e0b;
    --danger: #ef4444;
    --info: #3b82f6;

    /* Hintergründe */
    --bg-body: #f8fafc;
    --bg-card: #ffffff;

    /* Schatten */
    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.05);
    --shadow: 0 1px 3px 0 rgba(0, 0, 0, 0.1), 0 1px 2px -1px rgba(0, 0, 0, 0.1);
    --shadow-md: 0 4px 6px -1px rgba(0, 0, 0, 0.1), 0 2px 4px -2px rgba(0, 0, 0, 0.1);
    --shadow-lg: 0 10px 15px -3px rgba(0, 0, 0, 0.1), 0 4px 6px -4px rgba(0, 0, 0, 0.1);
    --shadow-xl: 0 20px 25px -5px rgba(0, 0, 0, 0.1), 0 8px 10px -6px rgba(0, 0, 0, 0.1);

    /* Border Radius */
    --radius-sm: 0.375rem;
    --radius: 0.5rem;
    --radius-lg: 0.75rem;
    --radius-xl: 1rem;

    /* Typografie */
    --font-heading: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;
    --font-body: 'Open Sans', -apple-system, BlinkMacSystemFont, 'Segoe UI', sans-serif;

    /* Übergänge */
    --transition: all 0.2s ease-in-out;
    --transition-slow: all 0.3s ease-in-out;
}

/* -----------------------------------------------------------------------------
   Basis-Styles
   ----------------------------------------------------------------------------- */
* {
    box-sizing: border-box;
}

html {
    scroll-behavior: smooth;
}

body {
    font-family: var(--font-body);
    font-size: 1rem;
    line-height: 1.6;
    color: var(--gray-700);
    background-color: var(--bg-body);
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-heading);
    font-weight: 600;
    color: var(--gray-900);
    line-height: 1.3;
    margin-bottom: 0.5em;
}

h1 { font-size: 2.5rem; }
h2 { font-size: 2rem; }
h3 { font-size: 1.5rem; }
h4 { font-size: 1.25rem; }
h5 { font-size: 1.125rem; }
h6 { font-size: 1rem; }

a {
    color: var(--primary);
    text-decoration: none;
    transition: var(--transition);
}

a:hover {
    color: var(--primary-hover);
}

/* -----------------------------------------------------------------------------
   Navbar
   ----------------------------------------------------------------------------- */
.navbar {
    background: var(--bg-card);
    box-shadow: var(--shadow);
    padding: 1rem 0;
}

.navbar-brand {
    font-family: var(--font-heading);
    font-size: 1.5rem;
    font-weight: 700;
    color: var(--primary) !important;
}

.navbar-brand:hover {
    color: var(--primary-hover) !important;
}

.nav-link {
    font-weight: 500;
    color: var(--gray-600) !important;
    padding: 0.5rem 1rem !important;
    border-radius: var(--radius);
    transition: var(--transition);
}

.nav-link:hover {
    color: var(--primary) !important;
    background-color: var(--primary-light);
}

.nav-link.active {
    color: var(--primary) !important;
    background-color: var(--primary-light);
}

/* -----------------------------------------------------------------------------
   Buttons
   ----------------------------------------------------------------------------- */
.btn {
    font-family: var(--font-heading);
    font-weight: 500;
    padding: 0.625rem 1.25rem;
    border-radius: var(--radius);
    transition: var(--transition);
    border: none;
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    color: white;
    box-shadow: var(--shadow-sm);
}

.btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-hover) 0%, var(--secondary-hover) 100%);
    transform: translateY(-1px);
    box-shadow: var(--shadow-md);
}

.btn-outline-primary {
    border: 2px solid var(--primary);
    color: var(--primary);
    background: transparent;
}

.btn-outline-primary:hover {
    background: var(--primary);
    color: white;
}

.btn-secondary {
    background: var(--gray-100);
    color: var(--gray-700);
}

.btn-secondary:hover {
    background: var(--gray-200);
    color: var(--gray-800);
}

.btn-lg {
    padding: 0.875rem 1.75rem;
    font-size: 1.1rem;
}

/* -----------------------------------------------------------------------------
   Cards (Software-Karten)
   ----------------------------------------------------------------------------- */
.card {
    background: var(--bg-card);
    border: none;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow);
    transition: var(--transition-slow);
    overflow: hidden;
}

.card:hover {
    transform: translateY(-4px);
    box-shadow: var(--shadow-xl);
}

.card-img-top {
    height: 180px;
    object-fit: cover;
    background: var(--gray-100);
}

.card-body {
    padding: 1.25rem;
}

.card-title {
    font-size: 1.125rem;
    font-weight: 600;
    margin-bottom: 0.5rem;
    color: var(--gray-900);
}

.card-text {
    color: var(--gray-600);
    font-size: 0.9rem;
    line-height: 1.5;
}

/* Software Card spezifisch */
.software-card {
    cursor: pointer;
    position: relative;
}

.software-card .card-img-wrapper {
    position: relative;
    overflow: hidden;
    background: linear-gradient(135deg, var(--gray-100) 0%, var(--gray-200) 100%);
}

.software-card .card-img-wrapper img {
    transition: var(--transition-slow);
}

.software-card:hover .card-img-wrapper img {
    transform: scale(1.05);
}

.software-card .category-badge {
    position: absolute;
    top: 0.75rem;
    left: 0.75rem;
    background: rgba(255, 255, 255, 0.95);
    color: var(--primary);
    padding: 0.25rem 0.75rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
    box-shadow: var(--shadow-sm);
}

.software-card .pricing-badge {
    position: absolute;
    top: 0.75rem;
    right: 0.75rem;
    background: var(--success);
    color: white;
    padding: 0.25rem 0.75rem;
    border-radius: 2rem;
    font-size: 0.75rem;
    font-weight: 600;
}

.software-card .pricing-badge.paid {
    background: var(--primary);
}

/* -----------------------------------------------------------------------------
   Suchbereich
   ----------------------------------------------------------------------------- */
.search-section {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    padding: 3rem 0;
    margin-bottom: 2rem;
}

.search-section h1 {
    color: white;
    margin-bottom: 0.5rem;
}

.search-section .lead {
    color: rgba(255, 255, 255, 0.9);
    margin-bottom: 1.5rem;
}

.search-box {
    max-width: 600px;
    margin: 0 auto;
}

.search-box .form-control {
    border: none;
    padding: 1rem 1.5rem;
    font-size: 1.1rem;
    border-radius: var(--radius-lg);
    box-shadow: var(--shadow-lg);
}

.search-box .form-control:focus {
    box-shadow: var(--shadow-xl), 0 0 0 3px rgba(255, 255, 255, 0.3);
}

.search-box .btn {
    padding: 1rem 2rem;
    border-radius: var(--radius-lg);
}

/* -----------------------------------------------------------------------------
   Kategorien-Filter
   ----------------------------------------------------------------------------- */
.category-filter {
    display: flex;
    flex-wrap: wrap;
    gap: 0.5rem;
    justify-content: center;
    padding: 1rem 0;
}

.category-pill {
    display: inline-block;
    padding: 0.5rem 1rem;
    background: var(--bg-card);
    border: 2px solid var(--gray-200);
    border-radius: 2rem;
    color: var(--gray-600);
    font-size: 0.9rem;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
}

.category-pill:hover {
    border-color: var(--primary);
    color: var(--primary);
}

.category-pill.active {
    background: var(--primary);
    border-color: var(--primary);
    color: white;
}

/* -----------------------------------------------------------------------------
   Footer
   ----------------------------------------------------------------------------- */
.footer {
    background: var(--gray-900);
    color: var(--gray-400);
    padding: 3rem 0 1.5rem;
    margin-top: 4rem;
}

.footer h5 {
    color: white;
    font-size: 1rem;
    margin-bottom: 1rem;
}

.footer a {
    color: var(--gray-400);
}

.footer a:hover {
    color: white;
}

.footer-bottom {
    border-top: 1px solid var(--gray-800);
    padding-top: 1.5rem;
    margin-top: 2rem;
}

/* -----------------------------------------------------------------------------
   Formulare
   ----------------------------------------------------------------------------- */
.form-control, .form-select {
    border: 2px solid var(--gray-200);
    border-radius: var(--radius);
    padding: 0.75rem 1rem;
    transition: var(--transition);
}

.form-control:focus, .form-select:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

.form-label {
    font-weight: 500;
    color: var(--gray-700);
    margin-bottom: 0.5rem;
}

/* -----------------------------------------------------------------------------
   Alerts & Badges
   ----------------------------------------------------------------------------- */
.alert {
    border: none;
    border-radius: var(--radius);
    padding: 1rem 1.25rem;
}

.badge {
    font-weight: 500;
    padding: 0.35rem 0.65rem;
    border-radius: var(--radius-sm);
}

/* -----------------------------------------------------------------------------
   Utilities
   ----------------------------------------------------------------------------- */
.text-gradient {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.bg-gradient-primary {
    background: linear-gradient(135deg, var(--primary) 0%, var(--secondary) 100%);
}

.hover-lift {
    transition: var(--transition);
}

.hover-lift:hover {
    transform: translateY(-2px);
}

/* -----------------------------------------------------------------------------
   Responsive
   ----------------------------------------------------------------------------- */
@media (max-width: 768px) {
    h1 { font-size: 2rem; }
    h2 { font-size: 1.5rem; }
    h3 { font-size: 1.25rem; }

    .search-section {
        padding: 2rem 0;
    }

    .search-box .form-control {
        font-size: 1rem;
        padding: 0.875rem 1rem;
    }

    .category-filter {
        gap: 0.375rem;
    }

    .category-pill {
        padding: 0.375rem 0.75rem;
        font-size: 0.8rem;
    }
}

/* -----------------------------------------------------------------------------
   Animationen
   ----------------------------------------------------------------------------- */
@keyframes fadeIn {
    from { opacity: 0; transform: translateY(10px); }
    to { opacity: 1; transform: translateY(0); }
}

.fade-in {
    animation: fadeIn 0.3s ease-out forwards;
}

/* Staggered animation für Karten */
.card-grid .card {
    opacity: 0;
    animation: fadeIn 0.4s ease-out forwards;
}

.card-grid .card:nth-child(1) { animation-delay: 0.05s; }
.card-grid .card:nth-child(2) { animation-delay: 0.1s; }
.card-grid .card:nth-child(3) { animation-delay: 0.15s; }
.card-grid .card:nth-child(4) { animation-delay: 0.2s; }
.card-grid .card:nth-child(5) { animation-delay: 0.25s; }
.card-grid .card:nth-child(6) { animation-delay: 0.3s; }
.card-grid .card:nth-child(7) { animation-delay: 0.35s; }
.card-grid .card:nth-child(8) { animation-delay: 0.4s; }

/* -----------------------------------------------------------------------------
   Loading States
   ----------------------------------------------------------------------------- */
.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-100) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: skeleton-loading 1.5s infinite;
    border-radius: var(--radius);
}

@keyframes skeleton-loading {
    0% { background-position: 200% 0; }
    100% { background-position: -200% 0; }
}