/**
 * FTP File Manager - Minimalistisches, modernes Design
 * Inspiriert von Plesk, Google Drive, Dropbox
 */

/* ==================== Reset & Base ==================== */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Clean Color Palette */
    --primary: #1a73e8;
    --primary-hover: #1557b0;
    --primary-light: #e8f0fe;

    --danger: #d93025;
    --danger-hover: #c5221f;
    --danger-light: #fce8e6;

    --success: #1e8e3e;
    --success-light: #e6f4ea;

    --warning: #f9ab00;
    --warning-light: #fef7e0;

    /* Light Mode Colors */
    --bg-primary: #ffffff;
    --bg-secondary: #f8f9fa;
    --bg-tertiary: #f1f3f4;

    --text-primary: #202124;
    --text-secondary: #5f6368;
    --text-tertiary: #80868b;

    --border-color: #e8eaed;
    --border-light: #dadce0;
    --border-dark: #bdc1c6;

    /* Grays (bleiben gleich) */
    --white: #ffffff;
    --gray-50: #f8f9fa;
    --gray-100: #f1f3f4;
    --gray-200: #e8eaed;
    --gray-300: #dadce0;
    --gray-400: #bdc1c6;
    --gray-500: #9aa0a6;
    --gray-600: #80868b;
    --gray-700: #5f6368;
    --gray-800: #3c4043;
    --gray-900: #202124;

    /* Layout */
    --radius: 8px;
    --radius-sm: 4px;
    --shadow-sm: 0 1px 2px 0 rgba(60, 64, 67, 0.3), 0 1px 3px 1px rgba(60, 64, 67, 0.15);
    --shadow-md: 0 1px 3px 0 rgba(60, 64, 67, 0.3), 0 4px 8px 3px rgba(60, 64, 67, 0.15);
    --shadow-lg: 0 2px 6px 2px rgba(60, 64, 67, 0.15), 0 8px 16px 4px rgba(60, 64, 67, 0.15);

    --transition: 0.2s cubic-bezier(0.4, 0, 0.2, 1);
}

/* Dark Mode */
[data-theme="dark"] {
    --primary: #8ab4f8;
    --primary-hover: #aecbfa;
    --primary-light: #1e3a5f;

    --danger: #f28b82;
    --danger-hover: #f6aea9;
    --danger-light: #3c2727;

    --success: #81c995;
    --success-light: #1e3a27;

    --warning: #fdd663;
    --warning-light: #3d3420;

    /* Dark Mode Colors */
    --bg-primary: #202124;
    --bg-secondary: #292a2d;
    --bg-tertiary: #35363a;

    --text-primary: #e8eaed;
    --text-secondary: #9aa0a6;
    --text-tertiary: #80868b;

    --border-color: #3c4043;
    --border-light: #5f6368;
    --border-dark: #80868b;

    --shadow-sm: 0 1px 2px 0 rgba(0, 0, 0, 0.3), 0 1px 3px 1px rgba(0, 0, 0, 0.15);
    --shadow-md: 0 1px 3px 0 rgba(0, 0, 0, 0.3), 0 4px 8px 3px rgba(0, 0, 0, 0.15);
    --shadow-lg: 0 2px 6px 2px rgba(0, 0, 0, 0.15), 0 8px 16px 4px rgba(0, 0, 0, 0.15);
}

html {
    transition: background-color 0.3s ease, color 0.3s ease;
}

body {
    font-family: 'Google Sans', 'Roboto', -apple-system, BlinkMacSystemFont, 'Segoe UI', Arial, sans-serif;
    background: var(--bg-secondary);
    color: var(--text-primary);
    line-height: 1.5;
    min-height: 100vh;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    transition: background-color var(--transition), color var(--transition);
}

/* ==================== Container ==================== */
.container {
    width: 100%;
    min-height: 100vh;
}

/* ==================== Auth Pages ==================== */
.auth-container {
    display: flex;
    align-items: center;
    justify-content: center;
    min-height: 100vh;
    padding: 20px;
    background: var(--bg-secondary);
}

.auth-box {
    background: var(--bg-primary);
    padding: 48px 40px;
    border-radius: var(--radius);
    border: 1px solid var(--border-color);
    box-shadow: var(--shadow-md);
    width: 100%;
    max-width: 450px;
}

.auth-box h1 {
    font-size: 24px;
    font-weight: 400;
    margin-bottom: 8px;
    color: var(--text-primary);
}

.subtitle {
    color: var(--text-secondary);
    margin-bottom: 32px;
    font-size: 14px;
}

.header-with-logout {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 8px;
}

/* ==================== Forms ==================== */
.auth-form {
    margin-bottom: 24px;
}

.form-group {
    margin-bottom: 20px;
}

.form-group label {
    display: block;
    margin-bottom: 8px;
    font-weight: 500;
    color: var(--text-primary);
    font-size: 14px;
}

.form-group input,
.form-control {
    width: 100%;
    padding: 10px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    font-size: 14px;
    color: var(--text-primary);
    transition: var(--transition);
}

.form-group input::placeholder,
.form-control::placeholder {
    color: var(--gray-500);
}

.form-group input:hover,
.form-control:hover {
    border-color: var(--gray-400);
}

.form-group input:focus,
.form-control:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* ==================== Buttons ==================== */
.btn {
    display: inline-flex;
    align-items: center;
    gap: 8px;
    padding: 8px 16px;
    border: 1px solid transparent;
    border-radius: var(--radius-sm);
    font-size: 14px;
    font-weight: 500;
    cursor: pointer;
    transition: var(--transition);
    text-decoration: none;
    white-space: nowrap;
}

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

.btn-primary:hover {
    background: var(--primary-hover);
    border-color: var(--primary-hover);
    box-shadow: var(--shadow-sm);
}

.btn-primary:active {
    box-shadow: none;
}

.btn-secondary {
    background: var(--white);
    color: var(--gray-700);
    border-color: var(--gray-300);
}

.btn-secondary:hover {
    background: var(--gray-50);
    border-color: var(--gray-400);
}

.btn-block {
    width: 100%;
    justify-content: center;
}

.btn-sm {
    padding: 6px 12px;
    font-size: 13px;
}

.btn-icon {
    background: transparent;
    border: none;
    padding: 8px;
    cursor: pointer;
    color: var(--gray-600);
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.btn-icon:hover {
    background: var(--bg-tertiary);
    color: var(--text-primary);
}

#theme-toggle {
    display: flex;
    align-items: center;
    justify-content: center;
    width: 36px;
    height: 36px;
    margin-right: 12px;
}

#theme-toggle svg {
    transition: transform 0.3s ease;
}

#theme-toggle:hover svg {
    transform: rotate(20deg);
}

.btn-delete:hover {
    background: var(--danger-light);
    color: var(--danger);
}

/* ==================== Messages ==================== */
.error-message {
    background: var(--danger-light);
    color: var(--danger-hover);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    border-left: 3px solid var(--danger);
    font-size: 14px;
}

.success-message {
    background: var(--success-light);
    color: var(--success);
    padding: 12px 16px;
    border-radius: var(--radius-sm);
    margin-bottom: 20px;
    border-left: 3px solid var(--success);
    font-size: 14px;
}

.info-box {
    background: var(--gray-50);
    padding: 16px;
    border-radius: var(--radius-sm);
    border: 1px solid var(--gray-200);
}

.info-box p {
    margin-bottom: 8px;
    color: var(--gray-700);
    font-size: 14px;
}

.info-box p:last-child {
    margin-bottom: 0;
}

.text-small {
    font-size: 13px;
    color: var(--gray-600);
}

/* ==================== Manager Layout ==================== */
.manager-container {
    width: 100%;
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    background: var(--bg-secondary);
}

.manager-header {
    background: var(--bg-primary);
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 16px;
}

.header-left h1 {
    font-size: 22px;
    font-weight: 400;
    margin-bottom: 4px;
    color: var(--gray-900);
}

.server-info {
    font-size: 13px;
    color: var(--gray-600);
}

.header-right {
    display: flex;
    align-items: center;
    gap: 16px;
}

.session-info {
    font-size: 13px;
    color: var(--gray-700);
    padding: 6px 12px;
    background: var(--gray-50);
    border-radius: var(--radius-sm);
    border: 1px solid var(--gray-200);
}

/* ==================== Navigation Bar ==================== */
.nav-bar {
    background: var(--bg-primary);
    padding: 12px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
    flex-wrap: wrap;
    gap: 12px;
}

.breadcrumbs {
    display: flex;
    align-items: center;
    gap: 4px;
    flex-wrap: wrap;
}

.breadcrumb {
    color: var(--gray-700);
    text-decoration: none;
    padding: 6px 8px;
    border-radius: var(--radius-sm);
    transition: var(--transition);
    font-size: 14px;
}

.breadcrumb:hover {
    background: var(--gray-100);
    color: var(--primary);
}

.separator {
    color: var(--gray-400);
    user-select: none;
}

.nav-actions {
    display: flex;
    gap: 8px;
    flex-wrap: wrap;
}

/* ==================== Filter Bar ==================== */
.filter-bar {
    background: var(--bg-tertiary);
    padding: 16px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    align-items: flex-end;
}

.filter-group {
    flex: 1;
    min-width: 180px;
}

.filter-group label {
    display: block;
    margin-bottom: 6px;
    font-size: 12px;
    color: var(--text-secondary);
    font-weight: 500;
}

.filter-select {
    width: 100%;
    padding: 8px 12px;
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius-sm);
    color: var(--text-primary);
    font-size: 14px;
    cursor: pointer;
    transition: var(--transition);
}

.filter-select:hover {
    border-color: var(--gray-400);
}

.filter-select:focus {
    outline: none;
    border-color: var(--primary);
    box-shadow: 0 0 0 3px var(--primary-light);
}

/* ==================== File Grid ==================== */
.file-grid {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    padding: 24px;
    background: var(--bg-secondary);
}

.file-card {
    background: var(--bg-primary);
    border: 1px solid var(--border-color);
    border-radius: var(--radius);
    overflow: hidden;
    transition: var(--transition);
    cursor: pointer;
    display: flex;
    flex-direction: column;
}

.file-card:hover {
    box-shadow: var(--shadow-md);
    border-color: var(--gray-300);
}

.file-thumbnail {
    width: 100%;
    height: 180px;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--gray-50);
    overflow: hidden;
    border-bottom: 1px solid var(--gray-200);
}

.file-thumbnail img {
    width: 100%;
    height: 100%;
    object-fit: cover;
}

.folder-icon {
    color: #5f6368;
}

.file-icon {
    color: #5f6368;
}

.file-info {
    padding: 12px;
    flex: 1;
}

.file-name {
    font-weight: 500;
    font-size: 14px;
    margin-bottom: 4px;
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
    color: var(--gray-900);
}

.file-meta {
    font-size: 12px;
    color: var(--gray-600);
    display: flex;
    gap: 6px;
    align-items: center;
}

.file-actions {
    padding: 8px 12px;
    border-top: 1px solid var(--border-color);
    display: flex;
    justify-content: flex-end;
    gap: 4px;
    background: var(--bg-tertiary);
}

.empty-state {
    grid-column: 1 / -1;
    text-align: center;
    padding: 80px 20px;
    color: var(--text-secondary);
    font-size: 16px;
}

/* ==================== Loading ==================== */
.loading-overlay {
    position: fixed;
    inset: 0;
    background: rgba(255, 255, 255, 0.9);
    display: none;
    align-items: center;
    justify-content: center;
    flex-direction: column;
    z-index: 9999;
}

.loading-overlay.active {
    display: flex;
}

.spinner {
    width: 48px;
    height: 48px;
    border: 3px solid var(--gray-200);
    border-top-color: var(--primary);
    border-radius: 50%;
    animation: spin 0.8s linear infinite;
}

@keyframes spin {
    to { transform: rotate(360deg); }
}

#loading-text {
    color: var(--gray-700);
    margin-top: 16px;
    font-size: 14px;
    font-weight: 500;
}

/* ==================== Modals ==================== */
.modal {
    position: fixed;
    inset: 0;
    background: rgba(0, 0, 0, 0.5);
    display: none;
    align-items: center;
    justify-content: center;
    z-index: 1000;
    padding: 20px;
}

.modal.active {
    display: flex;
}

.modal-content {
    background: var(--bg-primary);
    border-radius: var(--radius);
    max-width: 520px;
    width: 100%;
    max-height: 90vh;
    overflow-y: auto;
    box-shadow: var(--shadow-lg);
}

.modal-header {
    padding: 20px 24px;
    border-bottom: 1px solid var(--border-color);
    display: flex;
    justify-content: space-between;
    align-items: center;
}

.modal-header h2 {
    font-size: 18px;
    font-weight: 500;
    color: var(--text-primary);
}

.modal-close {
    background: transparent;
    border: none;
    font-size: 24px;
    cursor: pointer;
    color: var(--gray-600);
    padding: 4px;
    width: 32px;
    height: 32px;
    display: flex;
    align-items: center;
    justify-content: center;
    border-radius: var(--radius-sm);
    transition: var(--transition);
}

.modal-close:hover {
    background: var(--gray-100);
    color: var(--gray-900);
}

.modal-body {
    padding: 24px;
}

.modal-actions {
    display: flex;
    gap: 8px;
    justify-content: flex-end;
    margin-top: 20px;
}

/* ==================== Upload Area ==================== */
.upload-area {
    border: 2px dashed var(--border-color);
    border-radius: var(--radius);
    padding: 48px 20px;
    text-align: center;
    cursor: pointer;
    transition: var(--transition);
    background: var(--bg-tertiary);
}

.upload-area:hover {
    border-color: var(--primary);
    background: var(--primary-light);
}

.upload-area.dragover {
    border-color: var(--primary);
    background: var(--primary-light);
    border-style: solid;
}

.upload-area svg {
    color: var(--gray-500);
    margin-bottom: 12px;
}

.upload-area p {
    color: var(--text-secondary);
    font-size: 14px;
}

.progress-bar {
    width: 100%;
    height: 4px;
    background: var(--gray-200);
    border-radius: 2px;
    overflow: hidden;
    margin-bottom: 12px;
}

.progress-fill {
    height: 100%;
    background: var(--primary);
    transition: width 0.3s ease;
    width: 0%;
}

#upload-status {
    font-size: 14px;
    color: var(--gray-700);
    text-align: center;
}

/* ==================== Fullscreen Modal ==================== */
.modal-fullscreen {
    background: rgba(0, 0, 0, 0.95);
}

.modal-fullscreen-content {
    position: relative;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.modal-fullscreen .modal-close {
    position: fixed;
    top: 20px;
    right: 20px;
    background: rgba(255, 255, 255, 0.95);
    color: var(--gray-900);
    z-index: 10001;
    width: 40px;
    height: 40px;
    font-size: 24px;
    box-shadow: var(--shadow-md);
    border: 1px solid var(--gray-200);
}

.modal-fullscreen .modal-close:hover {
    background: var(--white);
    transform: scale(1.1);
}

#fullscreen-image {
    max-width: 90vw;
    max-height: 90vh;
    width: auto;
    height: auto;
    display: block;
    box-shadow: var(--shadow-lg);
    transition: opacity 0.3s ease, transform 0.1s ease;
    transform-origin: center center;
    cursor: default;
}

#fullscreen-image:active {
    cursor: grabbing !important;
}

/* ==================== Responsive ==================== */
@media (max-width: 768px) {
    .manager-header,
    .nav-bar,
    .filter-bar {
        padding: 12px 16px;
    }

    .header-left h1 {
        font-size: 18px;
    }

    .file-grid {
        padding: 16px;
        grid-template-columns: repeat(auto-fill, minmax(140px, 1fr));
        gap: 12px;
    }

    .file-thumbnail {
        height: 140px;
    }

    .auth-box {
        padding: 32px 24px;
    }

    .nav-actions {
        width: 100%;
    }

    .nav-actions .btn {
        flex: 1;
    }

    .filter-bar {
        flex-direction: column;
        align-items: stretch;
    }

    .filter-group {
        width: 100%;
    }
}

@media (max-width: 480px) {
    .file-grid {
        grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
    }

    .file-thumbnail {
        height: 120px;
    }

    .file-name {
        font-size: 13px;
    }

    .file-meta {
        font-size: 11px;
    }
}

/* ==================== Scrollbar ==================== */
::-webkit-scrollbar {
    width: 12px;
    height: 12px;
}

::-webkit-scrollbar-track {
    background: var(--gray-100);
}

::-webkit-scrollbar-thumb {
    background: var(--gray-300);
    border-radius: 6px;
    border: 2px solid var(--gray-100);
}

::-webkit-scrollbar-thumb:hover {
    background: var(--gray-400);
}

/* ==================== Selection ==================== */
::selection {
    background: var(--primary-light);
    color: var(--gray-900);
}