/* Improved focus indicators */
button:focus,
input:focus,
a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

:root {
    /* Hauptfarbschema */
    --primary-color: #3498db;
    --primary-color-dark: #2980b9;
    --secondary-color: #2980b9;
    --accent-color: #e74c3c;
    --accent-color-hover: #c0392b;

    /* Hintergrundfarben */
    --light-bg: #f5f7fa;
    --dark-bg: #34495e;

    /* Textfarben */
    --text-color: #2c3e50;
    --text-light: #ffffff;
    --text-muted: #888888;

    /* UI-Elemente */
    --border-color: #e7e7e7;
    --border-color-light: #eaeaea;
    --card-bg: #ffffff;
    --card-shadow: 0 4px 10px rgba(0, 0, 0, 0.1);
    --disabled-color: #95a5a6;
    --result-bg: #e8f4f8;
    --footer-bg: #f8f9fa;
    --message-border: #eee;

    /* Abstände */
    --spacing-small: 8px;
    --spacing-medium: 15px;
    --spacing-large: 25px;
    --spacing-xlarge: 50px;

    /* Radiusgrößen */
    --radius-small: 5px;
    --radius-medium: 10px;

    /* Übergänge */
    --transition-fast: 0.2s ease;
    --transition-normal: 0.3s ease;
}

/* Allgemeine Stile */
* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    line-height: 1.6;
    color: var(--text-color);
    background-color: var(--light-bg);
    margin: 0;
    padding: 0;
    font-size: 16px;
}

.container {
    max-width: 800px;
    width: 100%;
    margin: 0 auto;
    padding: var(--spacing-medium);
}

/* Header-Bereich */
header {
    background-color: var(--dark-bg);
    color: var(--text-light);
    border-radius: var(--radius-medium);
    margin-bottom: var(--spacing-xlarge);
    box-shadow: var(--card-shadow);
    padding: var(--spacing-large);
    position: relative;
}

.header-top {
    display: flex;
    justify-content: flex-end;
    align-items: flex-start;
    position: absolute;
    top: var(--spacing-large);
    right: var(--spacing-large);
    margin-bottom: 0;
}

.header-main {
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: var(--spacing-medium);
}

h1 {
    margin: 0;
    font-size: 2.2rem;
    font-weight: 700;
}

.header-logo {
    max-width: 200px;
    height: auto;
    transition: transform var(--transition-normal);
}

.header-links {
    display: flex;
    gap: var(--spacing-medium);
    flex-wrap: wrap;
    justify-content: center;
}

.header-link {
    color: var(--text-light);
    text-decoration: none;
    padding: var(--spacing-small) var(--spacing-medium);
    border: 1px solid rgba(255, 255, 255, 0.3);
    border-radius: var(--radius-small);
    transition: all var(--transition-fast);
    font-size: 0.9rem;
}

.header-link:hover {
    background: rgba(255, 255, 255, 0.1);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-2px);
}

/* Theme Toggle Button - iOS Style */
.theme-toggle {
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    border-radius: 25px;
    width: 50px;
    height: 28px;
    cursor: pointer;
    position: relative;
    transition: all var(--transition-normal);
    backdrop-filter: blur(10px);
    flex-shrink: 0;
    padding: 2px;
}

.theme-toggle:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: scale(1.05);
}

.theme-toggle:active {
    transform: scale(0.95);
}

.theme-toggle-slider {
    background: rgba(255, 255, 255, 0.9);
    border-radius: 50%;
    width: 20px;
    height: 20px;
    position: absolute;
    top: 2px;
    left: 2px;
    transition: transform var(--transition-normal);
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.2);
}

.theme-toggle-icon {
    width: 12px;
    height: 12px;
    transition: all var(--transition-normal);
}

/* Dark theme state */
body.dark-theme .theme-toggle-slider {
    transform: translateX(22px);
    background: rgba(255, 255, 255, 0.95);
}

/* Light theme state */
body.light-theme .theme-toggle-slider {
    transform: translateX(0);
}


/* Patcher-Karte */
.patcher-card {
    background: var(--card-bg);
    border-radius: var(--radius-medium);
    box-shadow: var(--card-shadow);
    padding: var(--spacing-large);
    margin-bottom: var(--spacing-large);
    transition: box-shadow var(--transition-normal);
}

.patcher-card:hover {
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

/* Drag & Drop Bereich */
.drop-zone {
    border: 2px dashed rgba(52, 152, 219, 0.3);
    border-radius: var(--radius-small);
    padding: var(--spacing-large);
    transition: border-color 0.3s, background-color 0.3s;
    position: relative;
    display: flex;
    flex-direction: column;
    align-items: center;
}

.drop-zone.drag-over {
    border-color: var(--primary-color);
    background-color: rgba(52, 152, 219, 0.1);
    transform: scale(1.01);
}

.drag-drop-hint {
    text-align: center;
    margin-top: var(--spacing-medium);
    color: var(--primary-color);
    font-style: italic;
    padding: 5px;
    font-size: 0.9em;
    border-top: 1px solid var(--border-color);
    width: 100%;
    padding-top: var(--spacing-medium);
}

.drop-instructions {
    display: none;
    position: absolute;
    text-align: center;
    top: 50%;
    left: 50%;
    transform: translate(-50%, -50%);
    color: var(--primary-color);
    font-weight: bold;
    font-size: 1.2em;
    background-color: rgba(255, 255, 255, 0.9);
    padding: var(--spacing-medium) var(--spacing-large);
    border-radius: var(--radius-small);
    box-shadow: var(--card-shadow);
    animation: fadeIn 0.3s;
    z-index: 10;
}

@keyframes fadeIn {
    from { opacity: 0; }
    to { opacity: 1; }
}

.drop-zone.drag-over .drop-instructions {
    display: block;
}

/* Dateiauswahl */
.file-select {
    width: 100%;
    margin-bottom: var(--spacing-large);
}

.file-input-container {
    display: flex;
    align-items: center;
    margin: var(--spacing-medium) 0;
    flex-wrap: wrap;
    gap: var(--spacing-medium);
}

.file-select-label {
    display: block;
    margin-bottom: var(--spacing-small);
    font-weight: bold;
    color: var(--text-color);
}

.file-input-button {
    background-color: var(--primary-color);
    color: var(--text-light);
    border: none;
    padding: 10px 15px;
    border-radius: var(--radius-small);
    cursor: pointer;
    font-size: 16px;
    transition: background-color var(--transition-fast), transform 0.1s;
    outline: none;
}

.file-input-button:hover {
    background-color: var(--primary-color-dark);
    box-shadow: 0 4px 8px rgba(52, 152, 219, 0.3);
}

.file-input-button:active {
    transform: scale(0.98);
}

.file-input-button:focus {
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.4);
}

.file-name {
    margin-left: var(--spacing-medium);
    font-style: italic;
    word-break: break-all;
}

input[type="file"] {
    position: absolute;
    left: -9999px;
}

/* Patch-Button */
.patch-button {
    display: block;
    margin: var(--spacing-medium) auto;
    background-color: var(--accent-color);
    color: var(--text-light);
    border: none;
    padding: 12px 25px;
    font-size: 18px;
    border-radius: var(--radius-small);
    cursor: pointer;
    width: fit-content;
    font-weight: bold;
    transition: background-color var(--transition-fast), transform 0.1s, box-shadow var(--transition-fast);
    outline: none;
}

.patch-button:hover {
    background-color: var(--accent-color-hover);
    box-shadow: 0 4px 8px rgba(231, 76, 60, 0.3);
}

.patch-button:active {
    transform: scale(0.98);
}

.patch-button:disabled {
    background-color: var(--disabled-color);
    cursor: not-allowed;
    box-shadow: none;
}

.patch-button:focus {
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.4);
}

/* Checksummen-Container */
.checksum-container {
    margin-top: var(--spacing-medium);
    background-color: #f8f9fa;
    padding: var(--spacing-medium);
    border-radius: var(--radius-small);
    border-left: 4px solid var(--primary-color);
    transition: background-color var(--transition-normal);
    animation: slideIn 0.3s;
}

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

.checksum-container:hover {
    background-color: #e8f4f8;
}

.checksum-title {
    font-weight: bold;
    margin-bottom: 5px;
    color: var(--primary-color-dark);
}

.checksum-value {
    font-family: 'Consolas', 'Monaco', monospace;
    word-break: break-all;
    background: rgba(52, 152, 219, 0.05);
    padding: 5px;
    border-radius: 3px;
}

/* Ergebnisbereich */
#result {
    padding: var(--spacing-medium);
    margin: var(--spacing-large) 0;
    background-color: var(--result-bg);
    border-left: 4px solid var(--primary-color);
    border-radius: var(--radius-small);
    transition: background-color var(--transition-normal);
}

/* Nachrichtenbereich */
#messages {
    background-color: var(--card-bg);
    border-radius: var(--radius-medium);
    box-shadow: 0 2px 4px rgba(0, 0, 0, 0.05);
    padding: var(--spacing-medium);
    max-height: 300px;
    overflow-y: auto;
    scroll-behavior: smooth;
    border: 1px solid var(--border-color);
}

#messages p {
    border-bottom: 1px solid var(--message-border);
    padding: var(--spacing-small) 0;
    margin: 0;
    transition: background-color var(--transition-fast);
}

#messages p:last-child {
    border-bottom: none;
}

#messages p:hover {
    background-color: rgba(52, 152, 219, 0.05);
}

/* Utility-Klassen */
.hidden {
    display: none;
}

/* Links */
a {
    color: var(--primary-color);
    text-decoration: none;
    transition: color var(--transition-fast);
}

a:hover {
    text-decoration: underline;
    color: var(--primary-color-dark);
}

a:focus {
    outline: 2px solid var(--primary-color);
    outline-offset: 2px;
}

/* Footer */
.disclaimer-footer {
    margin-top: var(--spacing-xlarge);
    padding: var(--spacing-medium) 0;
    background-color: var(--footer-bg);
    border-top: 1px solid var(--border-color);
    font-size: 14px;
    color: var(--text-muted);
    text-align: center;
}

.disclaimer-container {
    max-width: 800px;
    margin: 0 auto;
    padding: 0 var(--spacing-medium);
}


.disclaimer-footer a {
    color: #5a6268;
    text-decoration: underline;
}

.disclaimer-footer a:hover {
    color: #343a40;
}

/* Trennlinien zwischen den Abschnitten */
.disclaimer-container p:not(:last-child) {
    padding-bottom: 0.8rem;
    border-bottom: 1px dotted var(--border-color-light);
}

/* Responsive Design */
@media (max-width: 768px) {
    h1 {
        font-size: 1.8rem;
    }

    .header-logo {
        max-width: 150px;
    }
    
    .header-links {
        flex-direction: column;
        gap: var(--spacing-small);
    }
}

@media (max-width: 600px) {
    .header-top {
        justify-content: center;
    }
    
    .header-logo {
        max-width: 120px;
    }

    .container {
        padding: var(--spacing-small);
    }

    .patcher-card {
        padding: var(--spacing-medium);
    }

    .file-input-container {
        flex-direction: column;
        align-items: flex-start;
    }

    .file-name {
        margin-left: 0;
        margin-top: var(--spacing-small);
    }
}

/* Drucken */
@media print {
    .container {
        padding: 0;
    }

    .file-input-button,
    .patch-button,
    .drop-zone {
        display: none;
    }

    .disclaimer-footer {
        border-top: 1px solid #000;
        color: #000;
    }
}

/* Dark Mode Unterstützung */
@media (prefers-color-scheme: dark) {
    body:not(.light-theme) {
        --light-bg: #1a1a2e;
        --dark-bg: #16213e;
        --text-color: #e1e1e1;
        --border-color: #2d3748;
        --card-bg: #222831;
    }

    body:not(.light-theme) .checksum-container,
    body:not(.light-theme) #result {
        background-color: #2d3748;
        border-left-color: var(--primary-color);
    }

    body:not(.light-theme) .disclaimer-footer {
        background-color: #222831;
        border-color: #2d3748;
    }

    body:not(.light-theme) #messages {
        border-color: #2d3748;
    }

    body:not(.light-theme) #messages p {
        border-color: #2d3748;
    }

    body:not(.light-theme) .checksum-value {
        background: rgba(52, 152, 219, 0.1);
    }
}

/* Dark Theme Class - Manual Override */
body.dark-theme {
    --light-bg: #1a1a2e;
    --dark-bg: #16213e;
    --text-color: #e1e1e1;
    --border-color: #2d3748;
    --card-bg: #222831;
}

body.dark-theme .checksum-container,
body.dark-theme #result {
    background-color: #2d3748;
    border-left-color: var(--primary-color);
}

body.dark-theme .disclaimer-footer {
    background-color: #222831;
    border-color: #2d3748;
}

body.dark-theme #messages {
    border-color: #2d3748;
}

body.dark-theme #messages p {
    border-color: #2d3748;
}

body.dark-theme .checksum-value {
    background: rgba(52, 152, 219, 0.1);
}

/* Light Theme Class - Manual Override */
body.light-theme {
    --light-bg: #f5f7fa;
    --dark-bg: #34495e;
    --text-color: #2c3e50;
    --border-color: #e7e7e7;
    --card-bg: #ffffff;
}

body.light-theme .checksum-container,
body.light-theme #result {
    background-color: #e8f4f8;
    border-left-color: var(--primary-color);
}

body.light-theme .disclaimer-footer {
    background-color: #f8f9fa;
    border-color: var(--border-color);
}

body.light-theme #messages {
    border-color: var(--border-color);
}

body.light-theme #messages p {
    border-color: #eee;
}

body.light-theme .checksum-value {
    background: rgba(52, 152, 219, 0.05);
}

/* BSP Patcher Elements Styling */
/* Menu Container Styling */
.menu-container {
    background: var(--card-bg);
    border-radius: var(--radius-medium);
    box-shadow: var(--card-shadow);
    padding: var(--spacing-large);
    margin: var(--spacing-medium) 0;
    border-left: 4px solid var(--primary-color);
    transition: box-shadow var(--transition-normal);
}

.menu-container:hover {
    box-shadow: 0 8px 16px rgba(0, 0, 0, 0.15);
}

.menu-container h3 {
    color: var(--primary-color-dark);
    margin: 0 0 var(--spacing-medium) 0;
    font-size: 1.2rem;
    font-weight: 600;
    text-align: center;
}

/* Menu Options Container */
.menu-options {
    display: flex;
    flex-direction: row;
    gap: var(--spacing-medium);
    align-items: center;
    justify-content: center;
}

/* Menu Option Buttons */
.menu-options button {
    background-color: var(--primary-color);
    color: var(--text-light);
    border: none;
    padding: 12px 20px;
    border-radius: var(--radius-small);
    cursor: pointer;
    font-size: 16px;
    font-weight: 500;
    min-width: 200px;
    text-align: center;
    transition: all var(--transition-fast);
    outline: none;
    box-shadow: 0 2px 4px rgba(52, 152, 219, 0.2);
}

.menu-options button:hover {
    background-color: var(--primary-color-dark);
    transform: translateY(-2px);
    box-shadow: 0 4px 8px rgba(52, 152, 219, 0.3);
}

.menu-options button:active {
    transform: translateY(0);
    box-shadow: 0 2px 4px rgba(52, 152, 219, 0.2);
}

.menu-options button:focus {
    box-shadow: 0 0 0 3px rgba(52, 152, 219, 0.4);
}

/* Download Link Styling */
#result a {
    display: inline-block;
    background-color: var(--accent-color);
    color: var(--text-light);
    text-decoration: none;
    padding: 15px 25px;
    border-radius: var(--radius-small);
    font-weight: bold;
    font-size: 16px;
    text-align: center;
    transition: all var(--transition-fast);
    box-shadow: 0 4px 8px rgba(231, 76, 60, 0.2);
    margin: var(--spacing-medium) 0;
}

#result a:hover {
    background-color: var(--accent-color-hover);
    transform: translateY(-2px);
    box-shadow: 0 6px 12px rgba(231, 76, 60, 0.3);
    text-decoration: none;
}

#result a:active {
    transform: translateY(0);
    box-shadow: 0 4px 8px rgba(231, 76, 60, 0.2);
}

#result a:focus {
    outline: none;
    box-shadow: 0 0 0 3px rgba(231, 76, 60, 0.4);
}

/* Error Message Styling */
.error-message {
    background-color: #ffeaea;
    color: #d73527;
    border: 1px solid #f5c6cb;
    border-left: 4px solid #dc3545;
    padding: var(--spacing-medium);
    border-radius: var(--radius-small);
    font-weight: 500;
    margin: var(--spacing-medium) 0;
    animation: slideIn 0.3s ease;
}

/* Loading Spinner */
.loading-spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--border-color);
    border-top: 4px solid var(--primary-color);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: var(--spacing-medium) auto;
}

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

/* Responsive Design for BSP Patcher Elements */
@media (max-width: 600px) {
    .menu-options {
        flex-direction: column;
    }
    
    .menu-options button {
        min-width: 100%;
        font-size: 15px;
        padding: 10px 15px;
    }
    
    .menu-container {
        padding: var(--spacing-medium);
    }
    
    #result a {
        width: 100%;
        box-sizing: border-box;
        font-size: 15px;
        padding: 12px 20px;
    }
}

/* Dark Mode Support for BSP Patcher Elements */
@media (prefers-color-scheme: dark) {
    body:not(.light-theme) .error-message {
        background-color: #442424;
        color: #f56565;
        border-color: #5a2828;
        border-left-color: #e53e3e;
    }
}

body.dark-theme .error-message {
    background-color: #442424;
    color: #f56565;
    border-color: #5a2828;
    border-left-color: #e53e3e;
}