:root {
    --bg: #111827;
    --sidebar-bg: #1F2937;
    --content-bg: #111827;
    --card-bg: #1F2937;
    --border: #374151;
    --text-primary: #F9FAFB;
    --text-secondary: #9CA3AF;
    --accent: #3B82F6;
    --accent-hover: #60A5FA;
    --accent-rgb: 59, 130, 246; /* Für box-shadow Glow-Effekte */
    --green: #22C55E;
    --red: #EF4444;
    --yellow: #EAB308;
    --font-sans: 'Inter', sans-serif;
    --font-display: 'Poppins', sans-serif;
    --font-mono: 'Source Code Pro', monospace;
}

/* Globale Box-Sizing Regel und Scrollbar-Styling */
* {
    box-sizing: border-box;
    scrollbar-width: thin;
    scrollbar-color: var(--accent) transparent;
}

::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}
::-webkit-scrollbar-track {
    background: var(--sidebar-bg);
}
::-webkit-scrollbar-thumb {
    background-color: #4B5563;
    border-radius: 10px;
    border: 2px solid var(--sidebar-bg);
}
::-webkit-scrollbar-thumb:hover {
    background-color: #6B7280;
}

/* ==========================================================================
   2. Grundlayout (Body, Sidebar, Main Content)
   ========================================================================== */

html,
body {
    height: 100%;
    overflow: hidden;
}

body {
    font-family: var(--font-sans);
    background-color: var(--bg);
    color: var(--text-primary);
    display: flex;
    flex-direction: column; /* Mobile-First Layout */
}

.sidebar {
    width: 260px;
    background-color: var(--sidebar-bg);
    border-right: 1px solid var(--border);
    padding: 1.5rem;
    display: none; /* Auf Mobilgeräten standardmäßig ausblenden */
    flex-direction: column;
    flex-shrink: 0;
}

.main-content {
    flex-grow: 1;
    display: flex;
    flex-direction: column;
    height: 100vh;
}

/* Desktop-Layout */
@media (min-width: 768px) {
    body {
        flex-direction: row;
    }
    .sidebar {
        display: flex;
    }
}

/* ==========================================================================
   3. Header & Seiten-Struktur
   ========================================================================== */

.main-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    display: flex;
    flex-direction: column;
    align-items: flex-start;
    gap: 0.75rem;
    flex-shrink: 0;
}

.main-header .welder-name {
    font-size: 1.2rem;
    font-weight: 600;
}

@media (min-width: 768px) {
    .main-header {
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        padding: 1rem 2rem;
    }
}

.page-content {
    padding: 1rem;
    padding-bottom: 6rem; /* Platz für mobile Navigation */
    overflow-y: auto;
    flex-grow: 1;
}

@media (min-width: 768px) {
    .page-content {
        padding: 2rem;
    }
}

.page {
    display: none;
}

.page.active {
    display: block;
    animation: fadeIn 0.5s ease;
}

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

.page-title {
    font-family: var(--font-display);
    font-size: 2rem;
    font-weight: 700;
    margin-bottom: 0.5rem;
}

.page-subtitle {
    font-size: 1rem;
    color: var(--text-secondary);
    margin-bottom: 2rem;
}


/* ==========================================================================
   4. Komponenten (Karten, Formulare, Buttons etc.)
   ========================================================================== */

/* --- Karten --- */
.card {
    background-color: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    padding: 1rem;
}
@media (min-width: 768px) {
    .card {
        padding: 1.5rem;
    }
}

/* --- Formulare --- */
.form-group label {
    display: block;
    font-weight: 500;
    color: var(--text-secondary);
    margin-bottom: 0.5rem;
    font-size: 0.9rem;
}
.form-group input,
.form-group select {
    width: 100%;
    background-color: #374151;
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.75rem 1rem;
    border-radius: 8px;
    transition: all 0.2s;
}
.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 3px rgba(var(--accent-rgb), 0.4);
}
.form-group input:read-only,
input[readonly] {
    background-color: #2a3341 !important;
    cursor: not-allowed;
    opacity: 0.7;
}

/* --- Buttons --- */
.btn {
    padding: 0.75rem 1.5rem;
    border-radius: 8px;
    border: none;
    font-weight: 600;
    cursor: pointer;
    transition: all 0.2s;
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 0.5rem;
}
.btn:disabled {
    cursor: not-allowed;
    opacity: 0.5;
    background-color: #4b5563;
}
.btn-primary { background-color: var(--accent); color: #fff; }
.btn-primary:hover:not(:disabled) { background-color: #2563EB; }
.btn-secondary { background-color: #374151; color: var(--text-primary); }
.btn-secondary:hover:not(:disabled) { background-color: #4B5563; }
.btn-danger { background-color: var(--red); color: #fff; }
.btn-danger:hover:not(:disabled) { background-color: #DC2626; }
.btn-green { background-color: var(--green); color: #fff; }
.btn-green:hover:not(:disabled) { background-color: #16A34A; }

/* --- Tabs --- */
.tabs {
    display: flex;
    border-bottom: 1px solid var(--border);
    margin-bottom: 1.5rem;
}
.tab-button {
    padding: 0.75rem 1.5rem;
    cursor: pointer;
    color: var(--text-secondary);
    font-weight: 500;
    border-bottom: 3px solid transparent;
    transition: all 0.2s;
}
.tab-button.active {
    color: var(--accent);
    border-bottom-color: var(--accent);
}
.tab-content { display: none; }
.tab-content.active { display: block; }

/* --- Spinner --- */
.spinner {
    border: 4px solid rgba(255, 255, 255, 0.2);
    border-top: 4px solid var(--accent);
    border-radius: 50%;
    width: 40px;
    height: 40px;
    animation: spin 1s linear infinite;
    margin: 20px auto;
}
@keyframes spin {
    0% { transform: rotate(0deg); }
    100% { transform: rotate(360deg); }
}

/* ==========================================================================
   5. Spezifische Komponenten
   ========================================================================== */

/* --- Sidebar Navigation --- */
.sidebar-header {
    font-family: var(--font-display);
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 2rem;
}
.sidebar-nav a {
    display: flex;
    align-items: center;
    padding: 0.75rem 1rem;
    border-radius: 8px;
    color: var(--text-secondary);
    text-decoration: none;
    font-weight: 500;
    margin-bottom: 0.5rem;
    transition: background-color 0.2s, color 0.2s;
}
.sidebar-nav a:hover {
    background-color: #374151;
    color: var(--text-primary);
}
.sidebar-nav a.active {
    background-color: var(--accent);
    color: #fff;
}
.sidebar-nav a .nav-icon {
    width: 24px;
    margin-right: 1rem;
    text-align: center;
}

/* --- AI Drag & Drop Zone --- */
#ai-dropzone {
    border: 3px dashed var(--border);
    border-radius: 16px;
    padding: 3rem 2rem;
    text-align: center;
    cursor: pointer;
    color: var(--text-secondary);
    background-color: transparent;
    position: relative;
    transition: transform 0.3s ease, border-color 0.3s ease, background-color 0.3s ease, box-shadow 0.3s ease, color 0.3s ease;
}
#ai-dropzone .dropzone-icon {
    font-size: 3.5rem;
    margin-bottom: 1rem;
    transition: transform 0.4s cubic-bezier(0.175, 0.885, 0.32, 1.275), color 0.3s ease;
}
#ai-dropzone h3 {
    font-size: 1.2rem;
    font-weight: 600;
    color: var(--text-primary);
    margin: 0 0 0.25rem 0;
    transition: color 0.3s ease;
    pointer-events: none;
}
#ai-dropzone p {
    margin: 0;
    font-size: 0.9rem;
    pointer-events: none;
}
#ai-dropzone.dragover {
    border-style: solid;
    border-color: var(--accent-hover);
    background-color: rgba(var(--accent-rgb), 0.1);
    color: var(--text-primary);
    transform: scale(1.02);
    box-shadow: 0 0 25px rgba(var(--accent-rgb), 0.4);
}
#ai-dropzone.dragover .dropzone-icon {
    transform: translateY(-10px) scale(1.1);
    color: var(--accent-hover);
}
#ai-dropzone.dragover h3 {
    color: var(--accent-hover);
}
/* Disabled state for non-admins */
#ai-dropzone.disabled {
    cursor: not-allowed;
    border-style: solid;
    background-color: rgba(0,0,0,0.2);
}
#ai-dropzone.disabled .fa-robot {
    color: var(--border);
}
#ai-dropzone.disabled h2 {
    color: var(--text-secondary);
}


/* --- Zertifikats-Karten --- */
.cert-card-info .string {
    font-family: var(--font-mono);
    font-size: 1rem;
    margin: 0.5rem 0;
}
.cert-card-info .dates {
    font-size: 0.8rem;
    color: var(--text-secondary);
}
.cert-card-header .fa-chevron-down.rotate-180 {
    transform: rotate(180deg);
}
.cert-thumbnail-link {
    display: block;
    width: 60px;
    height: 80px;
    border-radius: 4px;
    overflow: hidden;
    border: 1px solid var(--border);
    transition: transform 0.2s ease, box-shadow 0.2s ease;
    flex-shrink: 0;
}
.cert-thumbnail-link:hover {
    transform: scale(1.05);
    box-shadow: 0 0 10px rgba(var(--accent-rgb), 0.5);
}
.cert-thumbnail-img {
    width: 100%;
    height: 100%;
    object-fit: cover;
    display: block;
}

/* --- WeldID Pass Vorschau --- */
#weldid-preview-container {
    aspect-ratio: 1.6 / 1;
}
.pass-preview-wrapper {
    background-color: #000;
    padding: 2rem;
    border-radius: 12px;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
}
#pass-render-source-wrapper {
    position: absolute;
    left: -9999px;
    top: auto;
    width: 1480px;
}

/* ==========================================================================
   6. Overlays (Modal, Toast, Splash Screen)
   ========================================================================== */

/* --- Modal-Dialoge --- */
.modal {
    display: none;
    position: fixed;
    z-index: 1000;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.8);
    backdrop-filter: blur(5px);
    justify-content: center;
    align-items: center;
    animation: fadeInModal 0.3s ease;
}
@keyframes fadeInModal { from { opacity: 0; } to { opacity: 1; } }

.modal-content {
    background: var(--card-bg);
    border: 1px solid var(--border);
    border-radius: 12px;
    width: 90%;
    max-width: 500px;
    position: relative;
    box-shadow: 0 10px 30px rgba(0, 0, 0, 0.5);
    animation: slideInModal 0.3s ease;
}
.modal-content.modal-lg { max-width: 800px; }
@keyframes slideInModal { from { transform: translateY(-20px); } to { transform: translateY(0); } }

.modal-header {
    padding: 1rem 1.5rem;
    border-bottom: 1px solid var(--border);
    font-size: 1.2rem;
    font-weight: 600;
}
.modal-body {
    padding: 1.5rem;
    max-height: 70vh;
    overflow-y: auto;
}
.modal-footer {
    padding: 1rem 1.5rem;
    border-top: 1px solid var(--border);
    display: flex;
    justify-content: flex-end;
    gap: 0.5rem;
}

/* --- Toast-Benachrichtigungen --- */
#toast-container {
    position: fixed;
    bottom: 20px;
    right: 20px;
    z-index: 9999;
    display: flex;
    flex-direction: column;
    gap: 10px;
}
.toast {
    background-color: var(--card-bg);
    color: var(--text-primary);
    padding: 12px 20px;
    border-radius: 8px;
    border: 1px solid var(--border);
    box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
    display: flex;
    align-items: center;
    gap: 10px;
    opacity: 0;
    transform: translateX(100%);
    transition: all 0.5s cubic-bezier(0.68, -0.55, 0.27, 1.55);
    max-width: 350px;
}
.toast.show {
    opacity: 1;
    transform: translateX(0);
}
.toast-icon { font-size: 1.2rem; flex-shrink: 0; }
.toast span { font-size: 0.9rem; }
.toast.success { border-left: 4px solid var(--green); }
.toast.success .toast-icon { color: var(--green); }
.toast.error { border-left: 4px solid var(--red); }
.toast.error .toast-icon { color: var(--red); }
.toast.info { border-left: 4px solid var(--accent); }
.toast.info .toast-icon { color: var(--accent); }

/* --- Splash Screen --- */
#splash-screen {
    position: fixed;
    top: 0;
    left: 0;
    width: 100%;
    height: 100%;
    display: flex;
    justify-content: center;
    align-items: center;
    z-index: 9999;
    background-color: var(--sidebar-bg);
    animation: splash-fade 2.5s ease-in-out forwards;
}
.splash-logo-container {
    text-align: center;
    animation: fadeIn 1s ease-in-out;
}
.splash-logo-text {
    font-family: var(--font-display);
    font-size: 3em;
    font-weight: 700;
    color: var(--text-primary);
    margin-top: 20px;
}
@keyframes splash-fade {
    0% { opacity: 1; }
    80% { opacity: 1; }
    100% { opacity: 0; visibility: hidden; }
}
.sidebar, .main-content {
    visibility: hidden;
    opacity: 0;
    transition: opacity 0.5s ease-in;
}

/* ==========================================================================
   7. Debugger-Fenster
   ========================================================================== */

#debug-output {
    color: var(--text-secondary);
}
.log-line {
    display: flex;
    flex-wrap: wrap;
    white-space: pre-wrap;
    word-break: break-all;
    font-family: var(--font-mono);
    margin-bottom: 4px;
    border-bottom: 1px solid var(--border);
    padding-bottom: 4px;
}
.log-level {
    flex-shrink: 0;
    font-weight: 600;
    margin-right: 8px;
}
.log-message {
    flex-basis: 100%;
    padding-left: 10px;
    margin-top: 4px;
    white-space: pre-wrap;
    word-break: break-all;
}
.log-object-content {
    background-color: rgba(0, 0, 0, 0.2);
    border-radius: 4px;
    padding: 8px;
    color: var(--text-primary);
}

.log-level-info { color: var(--accent); }
.log-level-api { color: #A78BFA; }
.log-level-app_state { color: #8B5CF6; }
.log-level-success { color: var(--green); }
.log-level-warn { color: var(--yellow); }
.log-level-error { color: var(--red); }
.log-level-console_error { color: var(--red); font-weight: 700; }
.log-level-fatal { color: #FFF; background-color: var(--red); padding: 0 4px; border-radius: 3px; }
.log-level-ai_scan { color: #f472b6; }


/* ==========================================================================
   8. Mobile Navigation & Optimierungen (max-width: 767px)
   ========================================================================== */

.mobile-nav {
    position: fixed;
    bottom: 0;
    left: 0;
    right: 0;
    height: calc(3.5rem + env(safe-area-inset-bottom));
    background-color: var(--sidebar-bg);
    border-top: 1px solid var(--border);
    display: flex;
    z-index: 100;
    padding-bottom: env(safe-area-inset-bottom);
}

.mobile-nav-link {
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    flex-grow: 1;
    color: var(--text-secondary);
    padding: 0.5rem 0;
    font-size: 0.75rem;
    gap: 0.25rem;
    transition: color 0.2s;
}
.mobile-nav-link .nav-icon {
    font-size: 1.25rem;
    margin-right: 0;
}
.mobile-nav-link.active {
    color: var(--accent);
}

@media (min-width: 768px) {
    .mobile-nav {
        display: none;
    }
}

@media (max-width: 767px) {
    body { font-size: 0.85rem; }
    .main-header { padding: 0.6rem 0.8rem; gap: 0.4rem; }
    .main-header .welder-name { font-size: 1.0rem; }
    .main-header .flex { gap: 0.3rem; }
    .page-content { padding: 0.6rem; padding-bottom: calc(4rem + env(safe-area-inset-bottom)); }
    .page-title { font-size: 1.4rem; margin-bottom: 0.2rem; }
    .page-subtitle { font-size: 0.8rem; margin-bottom: 1.2rem; }
    .card { padding: 0.6rem; }
    .form-group label { font-size: 0.75rem; margin-bottom: 0.2rem; }
    .form-group input, .form-group select { padding: 0.5rem 0.7rem; font-size: 0.85rem; }
    .grid.gap-6 { gap: 0.75rem; }
    .grid.gap-4 { gap: 0.5rem; }
    .btn { padding: 0.4rem 0.8rem; font-size: 0.75rem; gap: 0.25rem; }
    .btn i { font-size: 0.85em; }
    .btn.h-12 { height: auto; min-height: 2.5rem; }
    #ai-dropzone { padding: 1.2rem 0.8rem; }
    #ai-dropzone h2 { font-size: 1.0rem; }
    #ai-dropzone p { font-size: 0.75rem; }
    #ai-dropzone .fa-robot { font-size: 2.2rem; }
    .list-disc li { font-size: 0.8rem; margin-bottom: 0.25rem; }
    .cert-card-header { padding: 0.6rem; }
    .cert-card-info .string { font-size: 0.8rem; }
    .cert-card-info .dates { font-size: 0.65rem; }
    .cert-thumbnail-link { width: 45px; height: 60px; }
    .cert-card-header .flex { gap: 0.2rem; }
    .pass-preview-wrapper { padding: 0.8rem; }
    #summary-merged-container p { font-size: 0.8rem; }
    .modal-header { font-size: 0.9rem; }
    .modal-body { font-size: 0.85rem; }
    .mobile-nav-link .nav-icon { font-size: 1.1rem; }
    #pass-render-source { font-size: 14px; }
    #pass-render-source .text-4xl { font-size: 2.0rem; }
    #pass-render-source .text-2xl { font-size: 1.3rem; }
    #pass-render-source .text-lg { font-size: 0.95rem; }
    #pass-render-source .text-sm { font-size: 0.75rem; }
    #pass-render-source .text-xs { font-size: 0.65rem; }
    #pass-render-source .w-40 { width: 7rem; }
    #pass-render-source .h-52 { height: 9.3rem; }
    #pass-render-source .gap-8 { gap: 1rem; }
    #pass-render-source .gap-x-6 { column-gap: 1rem; }
    #pass-render-source .gap-y-4 { row-gap: 0.5rem; }
    #pass-render-source .mt-6 { margin-top: 1rem; }
    #pass-render-source .mb-3 { margin-bottom: 0.5rem; }
    #pass-render-source #pass-qrcode { transform: scale(0.8); transform-origin: top right; }
    #pass-render-source .w-24 { width: 5rem; }
}

#ai-command-line {
    background-color: var(--sidebar-bg);
    padding: 0.5rem;
    border-top: 1px solid var(--border);
}

#ai-command-line label {
    white-space: nowrap;
    color: var(--accent);
    font-weight: 600;
    font-size: 0.9em;
}

#ai-command-input {
    font-family: var(--font-mono);
    font-size: 0.9em;
    background-color: var(--bg);
    border: 1px solid var(--border);
    color: var(--text-primary);
    padding: 0.3rem 0.5rem;
    border-radius: 4px;
    transition: border-color 0.2s, box-shadow 0.2s;
}

#ai-command-input:focus {
    outline: none;
    border-color: var(--accent);
    box-shadow: 0 0 0 2px rgba(var(--accent-rgb), 0.4);
}

#ai-command-input::placeholder {
    color: var(--text-secondary);
    opacity: 0.7;
}

#ai-command-send {
    padding: 0.3rem 0.75rem;
    font-size: 0.75rem;
}

.main-content:fullscreen,
.main-content:-webkit-full-screen,
.main-content:-moz-full-screen,
.main-content:-ms-fullscreen {
    background-color: var(--bg);
    height: 100%;
    overflow-y: hidden;
}
.main-content:fullscreen .page-content,
.main-content:-webkit-full-screen .page-content,
.main-content:-moz-full-screen .page-content,
.main-content:-ms-fullscreen .page-content {
    height: 100%;
    overflow-y: auto;
    padding: 1rem;
}
.main-content:fullscreen ~ .mobile-nav,
.main-content:-webkit-full-screen ~ .mobile-nav,
.main-content:-moz-full-screen ~ .mobile-nav,
.main-content:-ms-fullscreen ~ .mobile-nav {
    display: none;
}

#pass-render-source #pass-qualifikationen-back .font-bold.text-base { font-size: 0.875rem; }
#pass-render-source #pass-qualifikationen-back .font-mono.text-base { font-size: 0.75rem; line-height: 1.1rem; }
#pass-render-source #pass-qualifikationen-back .text-gray-300.text-xs { font-size: 0.65rem; line-height: 0.9rem; }

#pass-render-source #pass-content-front > div.p-8,
#pass-render-source #pass-content-back > div.p-8 {
    padding-top: 0.5rem;
    padding-bottom: 3.5rem;
}

#pass-render-source #pass-content-front::before,
#pass-render-source #pass-content-back::before {
    content: "";
    position: absolute;
    top: 1.5rem;
    left: 1.5rem;
    right: 1.5rem;
    bottom: 1.5rem;
    z-index: 1;
    background-image: url('https://safetyforms.nl/svg/NLB-QAQC.svg');
    background-repeat: no-repeat;
    background-position: center center;
    background-size: contain;
    opacity: 0.5;
}