/* ==========================================================================
   AWS 웹 폴더 파일 브라우저 - 프리미엄 다크 글래스모피즘 테마
   ========================================================================== */

:root {
    --bg-main: #0b0f19;
    --bg-secondary: #111827;
    --bg-card: rgba(17, 24, 39, 0.75);
    --bg-card-hover: rgba(31, 41, 55, 0.85);
    --bg-glass: rgba(255, 255, 255, 0.04);
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-glow: rgba(99, 102, 241, 0.3);

    --primary: #6366f1;
    --primary-hover: #4f46e5;
    --primary-light: rgba(99, 102, 241, 0.15);
    --accent: #8b5cf6;
    --accent-gradient: linear-gradient(135deg, #6366f1 0%, #8b5cf6 50%, #ec4899 100%);
    
    --text-main: #f3f4f6;
    --text-muted: #9ca3af;
    --text-sub: #6b7280;
    
    --folder-color: #f59e0b;
    --code-color: #3b82f6;
    --image-color: #10b981;
    --pdf-color: #ef4444;
    --media-color: #ec4899;
    --archive-color: #8b5cf6;

    --font-main: 'Noto Sans KR', 'Inter', -apple-system, BlinkMacSystemFont, sans-serif;
    --font-code: 'JetBrains Mono', Consolas, Monaco, monospace;

    --radius-sm: 8px;
    --radius-md: 14px;
    --radius-lg: 20px;

    --shadow-soft: 0 10px 30px -10px rgba(0, 0, 0, 0.5);
    --shadow-glow: 0 0 20px rgba(99, 102, 241, 0.25);
    --transition: all 0.25s cubic-bezier(0.4, 0, 0.2, 1);
}

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

body {
    font-family: var(--font-main);
    background-color: var(--bg-main);
    color: var(--text-main);
    min-height: 100vh;
    background-image: 
        radial-gradient(at 0% 0%, rgba(99, 102, 241, 0.12) 0px, transparent 50%),
        radial-gradient(at 100% 100%, rgba(139, 92, 246, 0.12) 0px, transparent 50%),
        radial-gradient(at 50% 50%, rgba(15, 23, 42, 0.8) 0px, transparent 100%);
    background-attachment: fixed;
    line-height: 1.5;
    -webkit-font-smoothing: antialiased;
}

/* Glassmorphism Panel */
.glass-panel {
    background: var(--bg-card);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border: 1px solid var(--border-glass);
    box-shadow: var(--shadow-soft);
}

/* Helper Utilities */
.hidden {
    display: none !important;
}

.text-center {
    text-align: center;
}

code {
    font-family: var(--font-code);
    background: rgba(255, 255, 255, 0.08);
    padding: 2px 6px;
    border-radius: 4px;
    font-size: 0.85em;
    color: #e2e8f0;
}

/* App Container */
.app-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
}

/* ==========================================================================
   Login Screen
   ========================================================================== */
.login-overlay {
    position: fixed;
    inset: 0;
    z-index: 1000;
    display: flex;
    align-items: center;
    justify-content: center;
    background: rgba(11, 15, 25, 0.85);
    backdrop-filter: blur(20px);
    padding: 20px;
}

.login-card {
    width: 100%;
    max-width: 440px;
    padding: 40px;
    border-radius: var(--radius-lg);
    border: 1px solid rgba(255, 255, 255, 0.12);
    box-shadow: 0 25px 50px -12px rgba(0, 0, 0, 0.7), var(--shadow-glow);
    animation: loginFadeUp 0.4s ease-out;
}

@keyframes loginFadeUp {
    from {
        opacity: 0;
        transform: translateY(20px) scale(0.97);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

.login-header {
    text-align: center;
    margin-bottom: 30px;
}

.logo-badge {
    width: 64px;
    height: 64px;
    margin: 0 auto 16px;
    background: var(--accent-gradient);
    border-radius: 18px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 32px;
    color: #ffffff;
    box-shadow: var(--shadow-glow);
}

.login-header h2 {
    font-size: 1.6rem;
    font-weight: 700;
    margin-bottom: 8px;
    letter-spacing: -0.5px;
}

.login-header p {
    color: var(--text-muted);
    font-size: 0.9rem;
}

.input-group {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 20px;
}

.input-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
    display: flex;
    align-items: center;
    gap: 6px;
}

.input-group input {
    width: 100%;
    padding: 14px 16px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-size: 1rem;
    outline: none;
    transition: var(--transition);
}

.input-group input:focus {
    border-color: var(--primary);
    box-shadow: 0 0 0 3px rgba(99, 102, 241, 0.25);
}

.error-msg {
    color: #f87171;
    background: rgba(239, 68, 68, 0.12);
    border: 1px solid rgba(239, 68, 68, 0.25);
    padding: 10px 14px;
    border-radius: var(--radius-sm);
    font-size: 0.85rem;
    margin-bottom: 20px;
    display: flex;
    align-items: center;
    gap: 8px;
}

.login-footer {
    margin-top: 24px;
    text-align: center;
}

.badge-read-only {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    font-size: 0.78rem;
    color: #a7f3d0;
    background: rgba(16, 185, 129, 0.12);
    padding: 6px 12px;
    border-radius: 20px;
    border: 1px solid rgba(16, 185, 129, 0.2);
}

/* ==========================================================================
   Buttons
   ========================================================================== */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 12px 20px;
    border-radius: var(--radius-sm);
    font-size: 0.95rem;
    font-weight: 600;
    cursor: pointer;
    border: none;
    transition: var(--transition);
    text-decoration: none;
}

.btn-primary {
    background: var(--accent-gradient);
    color: #ffffff;
    box-shadow: 0 4px 15px rgba(99, 102, 241, 0.3);
}

.btn-primary:hover {
    opacity: 0.92;
    transform: translateY(-1px);
    box-shadow: 0 6px 20px rgba(99, 102, 241, 0.45);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.08);
    color: var(--text-main);
    border: 1px solid var(--border-glass);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.14);
    border-color: rgba(255, 255, 255, 0.2);
}

.btn-icon {
    padding: 10px;
    border-radius: var(--radius-sm);
    background: rgba(255, 255, 255, 0.05);
    color: var(--text-muted);
    border: 1px solid var(--border-glass);
}

.btn-icon:hover {
    color: var(--text-main);
    background: rgba(255, 255, 255, 0.12);
}

.btn-sm {
    padding: 8px 14px;
    font-size: 0.85rem;
}

/* ==========================================================================
   Main Interface Layout
   ========================================================================== */
.main-layout {
    max-width: 1400px;
    margin: 0 auto;
    width: 100%;
    padding: 24px;
    display: flex;
    flex-direction: column;
    gap: 20px;
}

/* Navbar */
.navbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 18px 28px;
    border-radius: var(--radius-md);
}

.nav-brand {
    display: flex;
    align-items: center;
    gap: 14px;
}

.brand-icon {
    font-size: 2rem;
    color: var(--primary);
}

.brand-text h1 {
    font-size: 1.25rem;
    font-weight: 700;
    letter-spacing: -0.3px;
}

.server-host {
    font-size: 0.8rem;
    color: var(--text-muted);
    font-family: var(--font-code);
}

.nav-actions {
    display: flex;
    align-items: center;
    gap: 16px;
}

.read-only-tag {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: 0.82rem;
    font-weight: 600;
    color: #fbbf24;
    background: rgba(251, 191, 36, 0.12);
    padding: 6px 14px;
    border-radius: 20px;
    border: 1px solid rgba(251, 191, 36, 0.25);
}

/* Toolbar */
.toolbar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    border-radius: var(--radius-md);
    gap: 20px;
    flex-wrap: wrap;
}

.breadcrumb-container {
    display: flex;
    align-items: center;
    gap: 6px;
    flex-wrap: wrap;
}

.btn-crumb {
    display: inline-flex;
    align-items: center;
    gap: 6px;
    padding: 6px 12px;
    border-radius: 6px;
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    color: var(--text-muted);
    font-size: 0.88rem;
    cursor: pointer;
    transition: var(--transition);
}

.btn-crumb:hover {
    background: rgba(99, 102, 241, 0.2);
    color: var(--text-main);
    border-color: rgba(99, 102, 241, 0.4);
}

.crumb-separator {
    color: var(--text-sub);
    font-size: 0.9rem;
}

.toolbar-controls {
    display: flex;
    align-items: center;
    gap: 12px;
}

.search-box {
    position: relative;
    display: flex;
    align-items: center;
}

.search-icon {
    position: absolute;
    left: 12px;
    color: var(--text-muted);
    font-size: 1.1rem;
}

.search-box input {
    padding: 9px 36px 9px 36px;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    color: var(--text-main);
    font-size: 0.9rem;
    width: 220px;
    outline: none;
    transition: var(--transition);
}

.search-box input:focus {
    width: 280px;
    border-color: var(--primary);
}

.btn-clear {
    position: absolute;
    right: 10px;
    background: none;
    border: none;
    color: var(--text-muted);
    cursor: pointer;
    font-size: 1rem;
}

.sort-dropdown {
    display: flex;
    align-items: center;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    padding: 0 10px;
}

.sort-dropdown label {
    color: var(--text-muted);
    font-size: 1.1rem;
    margin-right: 6px;
}

.sort-dropdown select {
    background: transparent;
    border: none;
    color: var(--text-main);
    padding: 9px 6px;
    font-size: 0.88rem;
    outline: none;
    cursor: pointer;
}

.sort-dropdown select option {
    background: var(--bg-secondary);
    color: var(--text-main);
}

.view-toggle {
    display: flex;
    background: rgba(0, 0, 0, 0.3);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    padding: 2px;
}

.btn-toggle {
    background: transparent;
    border: none;
    color: var(--text-muted);
    padding: 8px 12px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 1.1rem;
    transition: var(--transition);
}

.btn-toggle.active {
    background: var(--primary);
    color: #ffffff;
}

/* Info Bar */
.info-bar {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 0 8px;
    font-size: 0.85rem;
    color: var(--text-muted);
}

/* File View Container */
.file-view-container {
    border-radius: var(--radius-md);
    min-height: 480px;
    overflow: hidden;
}

/* Table View */
.file-table {
    width: 100%;
    border-collapse: collapse;
    text-align: left;
}

.file-table th {
    padding: 16px 20px;
    background: rgba(0, 0, 0, 0.25);
    color: var(--text-muted);
    font-weight: 600;
    font-size: 0.85rem;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    border-bottom: 1px solid var(--border-glass);
    cursor: pointer;
    user-select: none;
}

.file-table th:hover {
    color: var(--text-main);
}

.file-table td {
    padding: 14px 20px;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    font-size: 0.92rem;
    vertical-align: middle;
}

.file-row {
    transition: var(--transition);
    cursor: pointer;
}

.file-row:hover {
    background: var(--bg-card-hover);
}

.item-name-cell {
    display: flex;
    align-items: center;
    gap: 12px;
    font-weight: 500;
}

.item-icon {
    font-size: 1.4rem;
    width: 24px;
    text-align: center;
}

.item-icon.folder { color: var(--folder-color); }
.item-icon.code { color: var(--code-color); }
.item-icon.image { color: var(--image-color); }
.item-icon.pdf { color: var(--pdf-color); }
.item-icon.media { color: var(--media-color); }
.item-icon.archive { color: var(--archive-color); }
.item-icon.file { color: var(--text-muted); }

.col-size { width: 140px; font-family: var(--font-code); color: var(--text-muted); font-size: 0.85rem !important; }
.col-date { width: 200px; color: var(--text-muted); font-size: 0.85rem !important; }
.col-action { width: 120px; text-align: right; }

.btn-row-action {
    background: rgba(255, 255, 255, 0.06);
    border: 1px solid var(--border-glass);
    color: var(--text-muted);
    padding: 6px 10px;
    border-radius: 6px;
    cursor: pointer;
    font-size: 0.85rem;
    transition: var(--transition);
    text-decoration: none;
    display: inline-flex;
    align-items: center;
    gap: 4px;
}

.btn-row-action:hover {
    background: var(--primary-light);
    color: var(--primary);
    border-color: var(--border-glow);
}

/* Grid View */
.grid-cards {
    display: grid;
    grid-template-columns: repeat(auto-fill, minmax(200px, 1fr));
    gap: 16px;
    padding: 20px;
}

.grid-card {
    background: rgba(0, 0, 0, 0.2);
    border: 1px solid var(--border-glass);
    border-radius: var(--radius-sm);
    padding: 20px 16px;
    display: flex;
    flex-direction: column;
    align-items: center;
    text-align: center;
    gap: 12px;
    cursor: pointer;
    transition: var(--transition);
    position: relative;
}

.grid-card:hover {
    background: var(--bg-card-hover);
    transform: translateY(-3px);
    border-color: var(--border-glow);
    box-shadow: var(--shadow-glow);
}

.grid-card .item-icon {
    font-size: 2.8rem;
    width: auto;
}

.grid-card .card-name {
    font-weight: 500;
    font-size: 0.9rem;
    word-break: break-all;
    display: -webkit-box;
    -webkit-line-clamp: 2;
    -webkit-box-orient: vertical;
    overflow: hidden;
}

.grid-card .card-meta {
    font-size: 0.78rem;
    color: var(--text-muted);
    font-family: var(--font-code);
}

.grid-card .card-actions {
    margin-top: auto;
    width: 100%;
    display: flex;
    justify-content: center;
}

/* ==========================================================================
   Preview Modal
   ========================================================================== */
.modal-overlay {
    position: fixed;
    inset: 0;
    z-index: 2000;
    background: rgba(0, 0, 0, 0.85);
    backdrop-filter: blur(16px);
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 24px;
    animation: modalFadeIn 0.3s ease-out;
}

@keyframes modalFadeIn {
    from { opacity: 0; transform: scale(0.96); }
    to { opacity: 1; transform: scale(1); }
}

.modal-card {
    width: 100%;
    max-width: 1100px;
    max-height: 90vh;
    display: flex;
    flex-direction: column;
    border-radius: var(--radius-md);
    overflow: hidden;
    box-shadow: 0 25px 60px rgba(0, 0, 0, 0.8);
}

.modal-header {
    display: flex;
    align-items: center;
    justify-content: space-between;
    padding: 16px 24px;
    background: rgba(0, 0, 0, 0.4);
    border-bottom: 1px solid var(--border-glass);
}

.modal-title-wrap {
    display: flex;
    align-items: center;
    gap: 10px;
}

.modal-title-wrap i {
    font-size: 1.5rem;
    color: var(--primary);
}

.modal-title-wrap h3 {
    font-size: 1.1rem;
    font-weight: 600;
    max-width: 500px;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.badge-tag {
    font-size: 0.75rem;
    padding: 3px 8px;
    border-radius: 4px;
    background: var(--primary-light);
    color: var(--primary);
    font-weight: 600;
    text-transform: uppercase;
}

.modal-body {
    flex: 1;
    overflow-y: auto;
    padding: 24px;
    background: #0d1117;
    display: flex;
    flex-direction: column;
    align-items: center;
    justify-content: center;
    min-height: 300px;
}

/* Modal Content Viewers */
.preview-image {
    max-width: 100%;
    max-height: 70vh;
    object-fit: contain;
    border-radius: var(--radius-sm);
    box-shadow: 0 10px 30px rgba(0,0,0,0.5);
}

.preview-code-container {
    width: 100%;
    height: 100%;
    text-align: left;
}

.preview-code-container pre {
    margin: 0;
    border-radius: var(--radius-sm);
    background: #161b22 !important;
    padding: 18px !important;
    font-family: var(--font-code);
    font-size: 0.9rem;
    line-height: 1.6;
    overflow-x: auto;
}

.preview-pdf-iframe {
    width: 100%;
    height: 70vh;
    border: none;
    border-radius: var(--radius-sm);
}

.preview-media {
    max-width: 100%;
    max-height: 65vh;
    border-radius: var(--radius-sm);
    outline: none;
}

.spinner {
    animation: spin 1s linear infinite;
    display: inline-block;
}

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

/* Responsive Styles */
@media (max-width: 768px) {
    .main-layout { padding: 12px; }
    .navbar { flex-direction: column; gap: 12px; align-items: flex-start; }
    .toolbar { flex-direction: column; align-items: stretch; }
    .toolbar-controls { flex-wrap: wrap; }
    .search-box input { width: 100%; }
    .search-box input:focus { width: 100%; }
    .col-size, .col-date { display: none; }
}