/* Import von Google Fonts */
@import url('https://fonts.googleapis.com/css2?family=Poppins:wght@700&family=Inter:wght@400;500;600;700&family=Source+Code+Pro:wght@400;600&family=VT323&display=swap');

/* Globale CSS-Variablen für Theming */
:root {
    --font-sans: 'Inter', sans-serif;
    --font-display: 'Poppins', sans-serif;
    --font-mono: 'Source Code Pro', monospace;
    --font-retro: 'VT323', monospace;
}

/* Basis-Theme (Dark Mode) */
:root, [data-theme='dark'] {
    --bg-primary: #111827; /* Dunkelgrau */
    --bg-secondary: #1f2937; /* Etwas heller */
    --bg-sidebar: #0f172a; /* Sehr dunkel, fast schwarz */
    --bg-modal: rgba(15, 23, 42, 0.95);
    
    --border-primary: #374151; /* Mittleres Grau */
    --border-accent: #3b82f6; /* Blau */

    --text-primary: #f9fafb; /* Fast weiß */
    --text-secondary: #9ca3af; /* Helles Grau */
    --text-accent: #60a5fa; /* Helles Blau */
    --text-headings: #ffffff;
    
    --btn-primary-bg: #2563eb; /* Blau */
    --btn-primary-text: #ffffff;
    --btn-primary-hover-bg: #1d4ed8;
    
    --btn-secondary-bg: #374151;
    --btn-secondary-text: #f9fafb;
    --btn-secondary-hover-bg: #4b5563;
    
    --btn-danger-bg: #dc2626; /* Rot */
    --btn-danger-text: #ffffff;
    --btn-danger-hover-bg: #b91c1c;
    
    --btn-green-bg: #16a34a; /* Grün */
    --btn-green-text: #ffffff;
    --btn-green-hover-bg: #15803d;

    --input-bg: #1f2937;
    --input-border: #4b5563;
    --input-text: #f9fafb;
    --input-focus-ring: #2563eb;

    --card-bg: #1f2937;
    --card-border: #374151;
    --card-shadow: 0 4px 6px -1px rgba(0,0,0,0.4), 0 2px 4px -2px rgba(0,0,0,0.4);

    --toast-bg: #374151;
    --toast-text: #f9fafb;
    --toast-success-bg: #16a34a;
    --toast-error-bg: #dc2626;
}

/* Light Theme */
[data-theme='light'] {
    --bg-primary: #f9fafb;
    --bg-secondary: #f3f4f6;
    --bg-sidebar: #ffffff;
    --bg-modal: rgba(255, 255, 255, 0.98);

    --border-primary: #e5e7eb;
    --border-accent: #3b82f6;

    --text-primary: #1f2937;
    --text-secondary: #4b5563;
    --text-accent: #2563eb;
    --text-headings: #111827;

    --btn-primary-bg: #3b82f6;
    --btn-secondary-bg: #e5e7eb;
    --btn-secondary-text: #1f2937;
    --btn-secondary-hover-bg: #d1d5db;
    
    --input-bg: #ffffff;
    --input-border: #d1d5db;
    --input-text: #111827;

    --card-bg: #ffffff;
    --card-border: #e5e7eb;
    --card-shadow: 0 4px 6px -1px rgba(0,0,0,0.05), 0 2px 4px -2px rgba(0,0,0,0.05);
}

/* C64 Theme */
[data-theme='c64'] {
    --bg-primary: #40318d;
    --bg-secondary: #40318d;
    --bg-sidebar: #40318d;
    --border-primary: #8071ce;
    --text-primary: #8071ce;
    --text-secondary: #8071ce;
    --text-headings: #ffffff;
    --btn-primary-bg: #8071ce;
    --btn-primary-text: #40318d;
    --input-bg: #40318d;
    --input-border: #8071ce;
    --input-text: #ffffff;
    font-family: var(--font-retro), monospace !important;
}
[data-theme='c64'] * { font-family: var(--font-retro), monospace !important; text-transform: uppercase; }

/* Monochrome Theme */
[data-theme='monochrome'] {
    --bg-primary: #000000;
    --bg-secondary: #111111;
    --bg-sidebar: #000000;
    --border-primary: #333333;
    --text-primary: #00ff00;
    --text-secondary: #00dd00;
    --text-headings: #00ff00;
    --btn-primary-bg: #00ff00;
    --btn-primary-text: #000000;
    --input-bg: #000000;
    --input-border: #00ff00;
    --input-text: #00ff00;
    font-family: var(--font-mono), monospace !important;
}
[data-theme='monochrome'] * { font-family: var(--font-mono), monospace !important; }

/* Globale Stile */
body {
    font-family: var(--font-sans);
    background-color: var(--bg-primary);
    color: var(--text-primary);
    display: flex;
    transition: background-color 0.3s, color 0.3s;
}

/* Scrollbar Styling */
.scrollbar::-webkit-scrollbar {
  width: 8px;
  height: 8px;
}
.scrollbar::-webkit-scrollbar-track {
  background: var(--bg-primary);
}
.scrollbar::-webkit-scrollbar-thumb {
  background-color: var(--border-primary);
  border-radius: 4px;
}
.scrollbar::-webkit-scrollbar-thumb:hover {
  background-color: var(--text-secondary);
}

#splash-screen {
    position: fixed;
    inset: 0;
    background-color: var(--bg-primary);
    z-index: 10000;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: opacity 0.5s ease-out;
}
.splash-logo-container { display: flex; align-items: center; gap: 1rem; }
.splash-logo-text { font-family: var(--font-display); font-size: 4rem; font-weight: 700; }

.sidebar {
    width: 250px;
    background-color: var(--bg-sidebar);
    padding: 1.5rem;
    flex-shrink: 0;
    height: 100vh;
    position: sticky;
    top: 0;
    flex-direction: column;
    border-right: 1px solid var(--border-primary);
}
.sidebar-header { font-family: var(--font-display); font-size: 2rem; font-weight: 700; margin-bottom: 2rem; color: var(--text-headings); }
.sidebar-nav { display: flex; flex-direction: column; gap: 0.5rem; }
.nav-link { 
    display: flex; 
    align-items: center; 
    padding: 0.75rem 1rem; 
    border-radius: 0.375rem; 
    color: var(--text-secondary); 
    font-weight: 500; 
    transition: background-color 0.2s, color 0.2s;
}
.nav-link:hover { background-color: var(--bg-secondary); color: var(--text-primary); }
.nav-link.active { background-color: var(--btn-primary-bg); color: var(--btn-primary-text); }
.nav-icon { width: 1.25rem; text-align: center; margin-right: 0.75rem; font-size: 1.1rem; }

.main-content { flex-grow: 1; display: flex; flex-direction: column; height: 100vh; }
.main-header { 
    display: flex; 
    justify-content: space-between; 
    align-items: center; 
    padding: 1rem 2rem; 
    background-color: var(--bg-primary);
    border-bottom: 1px solid var(--border-primary);
    position: sticky; 
    top: 0; 
    z-index: 50;
}
.welder-name { font-weight: 600; font-size: 1.1rem; color: var(--text-primary); }

.page-content { flex-grow: 1; padding: 2rem; overflow-y: auto; }
.page { display: none; }
.page.active { display: block; }
.page-title { font-size: 2.25rem; font-weight: 700; font-family: var(--font-display); color: var(--text-headings); margin-bottom: 0.25rem; }
.page-subtitle { color: var(--text-secondary); margin-bottom: 2rem; }

.card { background-color: var(--card-bg); border: 1px solid var(--card-border); border-radius: 0.5rem; padding: 1.5rem; box-shadow: var(--card-shadow); }
.card-sm { background-color: var(--card-bg); border: 1px solid var(--card-border); border-radius: 0.5rem; padding: 1rem; box-shadow: var(--card-shadow); }

.form-group { display: flex; flex-direction: column; }
.form-group label { font-size: 0.875rem; font-weight: 500; color: var(--text-secondary); margin-bottom: 0.5rem; }
.form-group input, .form-group select { 
    background-color: var(--input-bg); 
    border: 1px solid var(--input-border); 
    color: var(--input-text); 
    padding: 0.75rem; 
    border-radius: 0.375rem; 
    width: 100%;
    transition: border-color 0.2s;
}
.form-group input:focus, .form-group select:focus { 
    outline: none; 
    border-color: var(--border-accent); 
    box-shadow: 0 0 0 2px var(--input-focus-ring);
}
.form-group input:read-only { background-color: rgba(128,128,128,0.1); cursor: not-allowed; }

.btn { padding: 0.75rem 1.25rem; border-radius: 0.375rem; font-weight: 600; text-align: center; display: inline-flex; justify-content: center; align-items: center; gap: 0.5rem; transition: background-color 0.2s; }
.btn-primary { background-color: var(--btn-primary-bg); color: var(--btn-primary-text); }
.btn-primary:hover { background-color: var(--btn-primary-hover-bg); }
.btn-secondary { background-color: var(--btn-secondary-bg); color: var(--btn-secondary-text); border: 1px solid var(--border-primary); }
.btn-secondary:hover { background-color: var(--btn-secondary-hover-bg); }
.btn-danger { background-color: var(--btn-danger-bg); color: var(--btn-danger-text); }
.btn-danger:hover { background-color: var(--btn-danger-hover-bg); }
.btn-green { background-color: var(--btn-green-bg); color: var(--btn-green-text); }
.btn-green:hover { background-color: var(--btn-green-hover-bg); }
.btn:disabled { opacity: 0.5; cursor: not-allowed; }

#ai-dropzone {
    border: 2px dashed var(--border-primary);
    border-radius: 0.5rem;
    padding: 2rem;
    text-align: center;
    cursor: pointer;
    transition: border-color 0.2s, background-color 0.2s;
}
#ai-dropzone.dragover { border-color: var(--border-accent); background-color: var(--bg-secondary); }

.tabs { display: flex; border-bottom: 1px solid var(--border-primary); margin-bottom: 1.5rem; }
.tab-button { 
    padding: 0.75rem 1.5rem; 
    background-color: transparent; 
    border: none; 
    color: var(--text-secondary); 
    font-weight: 600; 
    cursor: pointer; 
    border-bottom: 3px solid transparent;
    margin-bottom: -1px;
}
.tab-button.active { color: var(--text-accent); border-bottom-color: var(--border-accent); }
.tab-content { display: none; }
.tab-content.active { display: block; }

.scope-preview-field {
    background-color: var(--bg-primary) !important;
    font-family: var(--font-mono);
    font-size: 0.9rem;
    color: var(--text-secondary);
}

.sanitized-string-output {
    font-family: var(--font-mono);
    font-size: 0.8rem;
    color: var(--text-secondary);
    margin-top: 0.5rem;
    padding: 0.25rem 0.5rem;
    background-color: var(--bg-primary);
    border-radius: 4px;
    min-height: 1.5em; /* Damit es nicht springt, wenn es leer ist */
}

#certificate-list .cert-card {
    background-color: var(--card-bg);
    border: 1px solid var(--card-border);
    border-left: 5px solid var(--border-accent);
    padding: 1rem;
    border-radius: 0.375rem;
    box-shadow: var(--card-shadow);
}

#weldid-preview-container { 
    width: 100%; 
    max-width: 600px; /* DIN A6 Seitenverhältnis */
    aspect-ratio: 1.414 / 2; 
    margin: auto;
    box-shadow: 0 10px 30px rgba(0,0,0,0.3);
    border-radius: 0.5rem;
    overflow: hidden;
    background-color: var(--bg-secondary);
}

/* Pass-Render-Source (für die Erstellung) */
#pass-render-source-wrapper { position: absolute; left: -9999px; top: -9999px; }
#pass-render-source { font-family: var(--font-sans); }
#pass-photo { border-color: white; }

#toast-container { position: fixed; top: 1rem; right: 1rem; z-index: 10001; display: flex; flex-direction: column; gap: 0.5rem; }
.toast { 
    background-color: var(--toast-bg); 
    color: var(--toast-text); 
    padding: 1rem 1.5rem; 
    border-radius: 0.375rem; 
    box-shadow: 0 4px 10px rgba(0,0,0,0.3); 
    display: flex; 
    align-items: center; 
    gap: 1rem;
    opacity: 0;
    transform: translateX(100%);
    transition: opacity 0.5s, transform 0.5s;
}
.toast.show { opacity: 1; transform: translateX(0); }
.toast-success { background-color: var(--toast-success-bg); color: white; }
.toast-error { background-color: var(--toast-error-bg); color: white; }

/* Modale */
.modal {
    position: fixed;
    inset: 0;
    background-color: var(--bg-modal);
    backdrop-filter: blur(5px);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 1rem;
}
.modal-content {
    background-color: var(--bg-secondary);
    border: 1px solid var(--border-primary);
    border-radius: 0.5rem;
    box-shadow: var(--card-shadow);
    width: 100%;
    max-width: 500px;
    display: flex;
    flex-direction: column;
    max-height: 90vh;
}
.modal-content.modal-lg { max-width: 800px; }
.modal-content.modal-xl { max-width: 1200px; }
.modal-header { font-size: 1.25rem; font-weight: 600; padding: 1rem 1.5rem; border-bottom: 1px solid var(--border-primary); }
.modal-body { padding: 1.5rem; overflow-y: auto; }
.modal-footer { display: flex; justify-content: flex-end; gap: 0.75rem; padding: 1rem 1.5rem; border-top: 1px solid var(--border-primary); background-color: var(--bg-primary); }

.combination-modal .controls {
    padding: 1rem;
    background-color: var(--bg-primary);
    border-radius: 0.375rem;
    margin-bottom: 1rem;
}

.combination-modal table { width: 100%; border-collapse: collapse; }
.combination-modal th, .combination-modal td { padding: 0.75rem 1rem; text-align: left; border-bottom: 1px solid var(--border-primary); }
.combination-modal th { background-color: var(--bg-secondary); width: 30%; font-weight: 600; }
.combination-modal td { font-family: var(--font-mono); }

/* Mobile-spezifische Stile */
@media (max-width: 768px) {
    body { flex-direction: column; padding-bottom: 60px; /* Platz für mobile Nav */ }
    .sidebar { display: none; }
    .main-content { height: auto; }
    .main-header { flex-direction: column; gap: 1rem; align-items: stretch; }
    .page-content { padding: 1.5rem 1rem; }
    .page-title { font-size: 1.75rem; }

    .mobile-nav {
        background-color: var(--bg-sidebar);
        border-top: 1px solid var(--border-primary);
        box-shadow: 0 -2px 10px rgba(0,0,0,0.2);
    }
    .mobile-nav-link {
        flex: 1;
        display: flex;
        flex-direction: column;
        align-items: center;
        justify-content: center;
        padding: 0.5rem 0;
        color: var(--text-secondary);
        text-decoration: none;
    }
    .mobile-nav-link.active { color: var(--text-accent); }
    .mobile-nav-link .nav-icon { font-size: 1.25rem; margin-bottom: 0.25rem; }
    .mobile-nav-link .nav-text { font-size: 0.75rem; }
}

.spinner {
    border: 4px solid var(--border-primary);
    border-top: 4px solid var(--border-accent);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 1rem auto;
}

@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}