/* Matrix Design */
@import url('https://fonts.googleapis.com/css2?family=Share+Tech+Mono&display=swap');

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

:root {
    --bg-primary: #0d0d0d;
    --bg-secondary: rgba(0, 20, 0, 0.8);
    --bg-tertiary: rgba(0, 40, 0, 0.6);
    --matrix-green: #00ff41;
    --matrix-green-dark: #008f11;
    --matrix-green-glow: rgba(0, 255, 65, 0.5);
    --matrix-green-dim: #003b00;
    --accent-danger: #ff0040;
    --accent-warning: #ffcc00;
    --text-primary: #00ff41;
    --text-secondary: rgba(0, 255, 65, 0.6);
    --border-color: #003b00;
    --shadow-matrix: 0 0 10px rgba(0, 255, 65, 0.3), 0 0 20px rgba(0, 255, 65, 0.1);
}

body {
    font-family: 'Share Tech Mono', 'Courier New', monospace;
    background: var(--bg-primary);
    color: var(--text-primary);
    min-height: 100vh;
    line-height: 1.6;
    position: relative;
    overflow-x: hidden;
}

/* Matrix Canvas Background */
#matrix-canvas {
    position: fixed;
    top: 0;
    left: 0;
    width: 100vw;
    height: 100vh;
    z-index: -1;
    pointer-events: none;
}

/* Login-Seite */
.login-container {
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    position: relative;
    overflow: hidden;
}

.login-container::before {
    content: '';
    position: absolute;
    width: 100%;
    height: 100%;
    background: radial-gradient(ellipse at center, rgba(0, 255, 65, 0.1) 0%, transparent 70%);
    opacity: 0.4;
}

.login-box {
    position: relative;
    z-index: 1;
    padding: 40px;
    width: 100%;
    max-width: 400px;
}

/* Matrix-Box (ersetzt neon-box) */
.neon-box {
    background: var(--bg-secondary);
    border: 1px solid var(--matrix-green);
    border-radius: 0;
    box-shadow: 
        var(--shadow-matrix),
        inset 0 0 30px rgba(0, 255, 65, 0.05);
    padding: 30px;
    position: relative;
}

.neon-box::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 2px;
    background: linear-gradient(90deg, transparent, var(--matrix-green), transparent);
}

.neon-box:hover {
    box-shadow: 
        0 0 20px rgba(0, 255, 65, 0.5),
        0 0 40px rgba(0, 255, 65, 0.2),
        inset 0 0 40px rgba(0, 255, 65, 0.1);
    border-color: var(--matrix-green);
}

/* Matrix-Text (ersetzt neon-text) */
.neon-text {
    color: var(--matrix-green);
    text-shadow: 
        0 0 5px var(--matrix-green),
        0 0 10px var(--matrix-green),
        0 0 20px var(--matrix-green-dark);
    font-size: 1.8em;
    margin-bottom: 20px;
    text-align: center;
    font-weight: normal;
    letter-spacing: 3px;
    text-transform: uppercase;
}

/* Formular-Elemente */
.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    color: var(--text-secondary);
    font-size: 0.85em;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.form-group input[type="text"],
.form-group input[type="password"],
.form-group select {
    width: 100%;
    padding: 12px 15px;
    background: rgba(0, 20, 0, 0.9);
    border: 1px solid var(--matrix-green-dark);
    border-radius: 0;
    color: var(--matrix-green);
    font-size: 1em;
    font-family: 'Share Tech Mono', monospace;
}

.form-group input::placeholder {
    color: var(--matrix-green-dim);
}

.form-group input:focus,
.form-group select:focus {
    outline: none;
    border-color: var(--matrix-green);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.3), inset 0 0 10px rgba(0, 255, 65, 0.1);
    background: rgba(0, 30, 0, 0.9);
}

/* Matrix-Button (ersetzt neon-button) */
.neon-button {
    background: transparent;
    border: 1px solid var(--matrix-green);
    color: var(--matrix-green);
    padding: 12px 25px;
    font-size: 0.9em;
    font-family: 'Share Tech Mono', monospace;
    border-radius: 0;
    cursor: pointer;
    text-decoration: none;
    display: inline-block;
    text-align: center;
    text-transform: uppercase;
    letter-spacing: 2px;
    position: relative;
    overflow: hidden;
}

.neon-button:hover {
    background: rgba(0, 255, 65, 0.1);
    box-shadow: 
        0 0 10px var(--matrix-green-glow),
        0 0 20px rgba(0, 255, 65, 0.3),
        inset 0 0 10px rgba(0, 255, 65, 0.1);
    text-shadow: 0 0 5px var(--matrix-green);
}

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

.neon-button.small {
    padding: 6px 12px;
    font-size: 0.75em;
    letter-spacing: 1px;
}

.neon-button.danger {
    border-color: var(--accent-danger);
    color: var(--accent-danger);
}

.neon-button.danger:hover {
    background: rgba(255, 0, 64, 0.1);
    box-shadow: 
        0 0 10px rgba(255, 0, 64, 0.5),
        0 0 20px rgba(255, 0, 64, 0.3);
    text-shadow: 0 0 5px var(--accent-danger);
}

/* Container */
.container {
    max-width: 1400px;
    margin: 0 auto;
    padding: 20px;
}

/* Header */
.header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 20px 25px;
    margin-bottom: 30px;
    background: var(--bg-secondary);
    border: 1px solid var(--matrix-green-dark);
    border-left: 3px solid var(--matrix-green);
    position: relative;
}

.header::after {
    content: '// SYSTEM ONLINE';
    position: absolute;
    top: 5px;
    right: 10px;
    font-size: 0.65em;
    color: var(--matrix-green-dark);
    letter-spacing: 1px;
}

.header h1 {
    font-size: 1.5em;
    font-weight: normal;
    letter-spacing: 3px;
}

.user-info {
    display: flex;
    gap: 15px;
    align-items: center;
}

.user-info span {
    color: var(--text-secondary);
    font-size: 0.85em;
}

/* Breadcrumb */
.breadcrumb {
    margin-bottom: 20px;
    padding: 12px 20px;
    background: var(--bg-secondary);
    border-left: 3px solid var(--matrix-green);
    font-size: 0.9em;
}

.breadcrumb a {
    color: var(--matrix-green);
    text-decoration: none;
}

.breadcrumb a:hover {
    text-shadow: 0 0 10px var(--matrix-green);
}

/* Verzeichnis-Ansicht */
.directory-view {
    background: var(--bg-secondary);
    padding: 20px;
    border: 1px solid var(--matrix-green-dark);
}

.tree-container {
    width: 100%;
}

.tree-controls {
    margin-bottom: 20px;
    display: flex;
    gap: 10px;
    padding-bottom: 15px;
    border-bottom: 1px solid var(--matrix-green-dim);
}

.file-tree {
    min-height: 200px;
}

.tree-item {
    margin-bottom: 3px;
}

.tree-node {
    display: flex;
    align-items: center;
    gap: 10px;
    padding: 8px 12px;
    background: rgba(0, 20, 0, 0.5);
    border: 1px solid transparent;
    border-left: 2px solid var(--matrix-green-dark);
    cursor: pointer;
    font-size: 0.9em;
}

.tree-node:hover {
    background: rgba(0, 40, 0, 0.7);
    border-color: var(--matrix-green-dark);
    border-left-color: var(--matrix-green);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.1);
}

.tree-node.directory-node {
    border-left-color: var(--matrix-green);
}

.tree-node.directory-node:hover {
    background: rgba(0, 50, 0, 0.7);
}

.tree-toggle {
    width: 16px;
    text-align: center;
    color: var(--matrix-green);
    font-size: 0.8em;
    cursor: pointer;
    user-select: none;
}

.tree-toggle:hover {
    text-shadow: 0 0 5px var(--matrix-green);
}

.tree-spacer {
    width: 16px;
    display: inline-block;
}

.tree-icon {
    font-size: 1em;
    filter: sepia(100%) saturate(500%) hue-rotate(85deg) brightness(0.9);
}

.tree-name {
    flex: 1;
    color: var(--text-primary);
}

.tree-size {
    color: var(--text-secondary);
    font-size: 0.8em;
    margin-right: 10px;
}

.tree-date {
    color: var(--text-secondary);
    font-size: 0.8em;
    margin-right: 10px;
}

.tree-children {
    margin-left: 25px;
    border-left: 1px dashed var(--matrix-green-dim);
    padding-left: 10px;
}

.file-node {
    cursor: default;
    border-left-color: var(--matrix-green-dim);
}

.loading {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    font-size: 1em;
    letter-spacing: 2px;
}

.loading::after {
    content: '...';
}

.file-list {
    display: grid;
    gap: 5px;
}

.file-item {
    padding: 10px 15px;
    background: rgba(0, 20, 0, 0.5);
    border-left: 2px solid var(--matrix-green-dark);
}

.file-item:hover {
    background: rgba(0, 40, 0, 0.7);
    border-left-color: var(--matrix-green);
}

.file-item.directory {
    border-left-color: var(--matrix-green);
}

.item-link {
    display: flex;
    align-items: center;
    gap: 15px;
    text-decoration: none;
    color: var(--text-primary);
    width: 100%;
}

.item-link .icon {
    font-size: 1.2em;
}

.item-link .name {
    flex: 1;
}

.item-link .size,
.item-link .date {
    color: var(--text-secondary);
    font-size: 0.85em;
}

.download-button,
.download-all-button {
    margin-left: auto;
    text-decoration: none;
    white-space: nowrap;
}

.download-all-button {
    margin-left: 10px;
}

.file-item .item-link {
    display: flex;
    align-items: center;
    gap: 15px;
    width: 100%;
}

.empty-message {
    text-align: center;
    padding: 40px;
    color: var(--text-secondary);
    font-size: 1em;
    border: 1px dashed var(--matrix-green-dim);
}

/* Admin-Panel */
.admin-tabs {
    display: flex;
    gap: 0;
    margin-bottom: 30px;
    border-bottom: 1px solid var(--matrix-green-dark);
}

.tab {
    padding: 15px 30px;
    background: transparent;
    border: none;
    color: var(--text-secondary);
    text-decoration: none;
    cursor: pointer;
    border-bottom: 2px solid transparent;
    font-size: 0.9em;
    font-family: 'Share Tech Mono', monospace;
    text-transform: uppercase;
    letter-spacing: 2px;
}

.tab:hover {
    color: var(--matrix-green);
    background: rgba(0, 255, 65, 0.05);
}

.tab.active {
    color: var(--matrix-green);
    border-bottom-color: var(--matrix-green);
    text-shadow: 0 0 10px var(--matrix-green-glow);
}

.admin-section {
    margin-bottom: 40px;
}

.admin-section h2 {
    margin-bottom: 20px;
    font-size: 1.2em;
    font-weight: normal;
    letter-spacing: 2px;
    text-transform: uppercase;
}

.form-box {
    margin-bottom: 30px;
}

.user-list {
    display: grid;
    gap: 10px;
}

.user-item {
    padding: 15px 20px;
    background: rgba(0, 20, 0, 0.5);
    border-left: 3px solid var(--matrix-green);
}

.user-info {
    display: flex;
    align-items: center;
    gap: 15px;
    margin-bottom: 10px;
}

.badge {
    padding: 3px 10px;
    font-size: 0.7em;
    text-transform: uppercase;
    letter-spacing: 1px;
    border: 1px solid;
}

.badge.admin {
    border-color: var(--accent-warning);
    color: var(--accent-warning);
    background: rgba(255, 204, 0, 0.1);
}

.user-actions {
    display: flex;
    gap: 10px;
    flex-wrap: wrap;
}

.inline-form {
    display: inline;
}

.password-form {
    margin-top: 15px;
    padding-top: 15px;
    border-top: 1px solid var(--matrix-green-dim);
    display: flex;
    gap: 10px;
    align-items: center;
}

.password-form input {
    flex: 1;
    padding: 8px 12px;
    background: rgba(0, 20, 0, 0.9);
    border: 1px solid var(--matrix-green-dark);
    color: var(--matrix-green);
    font-family: 'Share Tech Mono', monospace;
}

.user-directories {
    margin-bottom: 30px;
    width: 100%;
    box-sizing: border-box;
    overflow: hidden;
}

.user-directories h3 {
    color: var(--matrix-green);
    margin-bottom: 15px;
    font-size: 1.1em;
    font-weight: normal;
    letter-spacing: 2px;
}

.add-directory-form {
    display: flex;
    gap: 10px;
    margin-bottom: 20px;
    width: 100%;
    box-sizing: border-box;
}

.add-directory-form select {
    flex: 1;
    min-width: 0;
    max-width: 100%;
    padding: 10px 15px;
    background: rgba(0, 20, 0, 0.9);
    border: 1px solid var(--matrix-green-dark);
    color: var(--matrix-green);
    font-family: 'Share Tech Mono', monospace;
    box-sizing: border-box;
}

.add-directory-form select:focus {
    outline: none;
    border-color: var(--matrix-green);
    box-shadow: 0 0 10px rgba(0, 255, 65, 0.2);
}

.directory-list {
    display: grid;
    gap: 8px;
}

.directory-item {
    display: flex;
    justify-content: space-between;
    align-items: center;
    padding: 10px 15px;
    background: rgba(0, 20, 0, 0.5);
    border-left: 3px solid var(--matrix-green);
}

.directory-item span {
    flex: 1;
    color: var(--text-primary);
    font-size: 0.9em;
}

.empty {
    color: var(--text-secondary);
    font-style: normal;
    padding: 20px;
    text-align: center;
    border: 1px dashed var(--matrix-green-dim);
}

.info-text {
    color: var(--text-secondary);
    margin-bottom: 20px;
    padding: 15px 20px;
    background: rgba(0, 20, 0, 0.5);
    border-left: 3px solid var(--matrix-green);
    font-size: 0.9em;
}

/* Messages */
.message {
    padding: 15px 20px;
    margin-bottom: 20px;
    font-size: 0.9em;
    border-left: 3px solid;
}

.message.success {
    background: rgba(0, 255, 65, 0.1);
    border-color: var(--matrix-green);
    color: var(--matrix-green);
}

.message.error {
    background: rgba(255, 0, 64, 0.1);
    border-color: var(--accent-danger);
    color: var(--accent-danger);
}

.error-message {
    background: rgba(255, 0, 64, 0.1);
    border: 1px solid var(--accent-danger);
    border-left: 3px solid var(--accent-danger);
    color: var(--accent-danger);
    padding: 12px 15px;
    margin-bottom: 20px;
    text-align: center;
    font-size: 0.9em;
}

/* Scrollbar Styling */
::-webkit-scrollbar {
    width: 8px;
    height: 8px;
}

::-webkit-scrollbar-track {
    background: var(--bg-primary);
}

::-webkit-scrollbar-thumb {
    background: var(--matrix-green-dark);
    border: 1px solid var(--matrix-green-dim);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--matrix-green);
}

/* Selection */
::selection {
    background: var(--matrix-green);
    color: var(--bg-primary);
}

/* Responsive */
@media (max-width: 768px) {
    .header {
        flex-direction: column;
        gap: 15px;
        text-align: center;
    }
    
    .header::after {
        display: none;
    }
    
    .user-info {
        flex-direction: column;
    }
    
    .neon-text {
        font-size: 1.3em;
        letter-spacing: 2px;
    }
    
    .admin-tabs {
        flex-direction: column;
    }
    
    .tab {
        border-bottom: none;
        border-left: 2px solid transparent;
    }
    
    .tab.active {
        border-bottom: none;
        border-left-color: var(--matrix-green);
    }
    
    .user-actions {
        flex-direction: column;
    }
    
    .add-directory-form {
        flex-direction: column;
    }
    
    .tree-node {
        flex-wrap: wrap;
    }
    
    .tree-size,
    .tree-date {
        display: none;
    }
}