@import url('https://fonts.googleapis.com/css2?family=Inter:wght@300;400;500;600;700&family=Outfit:wght@400;500;600;700;800&display=swap');

:root {
    --bg-gradient: linear-gradient(135deg, #070913 0%, #0f1123 50%, #17122b 100%);
    --surface-glass: rgba(22, 25, 49, 0.65);
    --surface-glass-hover: rgba(30, 34, 64, 0.8);
    --surface-glass-active: rgba(40, 45, 80, 0.95);
    --border-glass: rgba(255, 255, 255, 0.08);
    --border-glass-focus: rgba(99, 102, 241, 0.4);
    
    --primary: #6366f1;
    --primary-glow: rgba(99, 102, 241, 0.35);
    --secondary: #a855f7;
    --success: #10b981;
    --success-glow: rgba(16, 185, 129, 0.25);
    --danger: #f43f5e;
    --warning: #f59e0b;
    
    --text-main: #f8fafc;
    --text-muted: #94a3b8;
    --text-dark: #64748b;
    
    --font-header: 'Outfit', sans-serif;
    --font-body: 'Inter', sans-serif;
    
    --shadow-sm: 0 2px 8px -2px rgba(0, 0, 0, 0.5);
    --shadow-md: 0 10px 25px -5px rgba(0, 0, 0, 0.6), 0 8px 16px -6px rgba(0, 0, 0, 0.6);
    --shadow-lg: 0 25px 50px -12px rgba(0, 0, 0, 0.7);
    
    --transition-fast: 0.15s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-normal: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-slow: 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

* {
    box-sizing: border-box;
    margin: 0;
    padding: 0;
    -webkit-tap-highlight-color: transparent;
}

body {
    font-family: var(--font-body);
    background: var(--bg-gradient);
    color: var(--text-main);
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    overflow-x: hidden;
    line-height: 1.5;
}

/* Scrollbar styling */
::-webkit-scrollbar {
    width: 6px;
    height: 6px;
}
::-webkit-scrollbar-track {
    background: rgba(0, 0, 0, 0.2);
}
::-webkit-scrollbar-thumb {
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
}
::-webkit-scrollbar-thumb:hover {
    background: rgba(255, 255, 255, 0.2);
}

h1, h2, h3, h4, h5, h6 {
    font-family: var(--font-header);
    font-weight: 600;
    letter-spacing: -0.02em;
}

/* Glass panel container */
.glass-panel {
    background: var(--surface-glass);
    border: 1px solid var(--border-glass);
    backdrop-filter: blur(16px);
    -webkit-backdrop-filter: blur(16px);
    border-radius: 20px;
    box-shadow: var(--shadow-md);
    transition: transform var(--transition-normal), border-color var(--transition-normal), box-shadow var(--transition-normal);
}

/* Universal Page Wrapper */
.app-container {
    max-width: 1200px;
    width: 100%;
    margin: 0 auto;
    padding: 20px;
    flex: 1;
    display: flex;
    flex-direction: column;
}

/* Header UI */
.app-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 24px;
    padding-bottom: 16px;
    border-bottom: 1px solid var(--border-glass);
}

.logo-section {
    display: flex;
    align-items: center;
    gap: 12px;
}

.logo-icon {
    width: 40px;
    height: 40px;
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    border-radius: 12px;
    display: flex;
    align-items: center;
    justify-content: center;
    box-shadow: 0 0 15px var(--primary-glow);
    font-weight: 800;
    font-size: 1.3rem;
    font-family: var(--font-header);
    color: #fff;
}

.logo-text {
    font-family: var(--font-header);
    font-size: 1.4rem;
    font-weight: 700;
    background: linear-gradient(90deg, var(--text-main) 30%, var(--text-muted) 100%);
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
}

.user-badge {
    background: rgba(255, 255, 255, 0.05);
    border: 1px solid var(--border-glass);
    padding: 6px 16px;
    border-radius: 50px;
    font-size: 0.85rem;
    display: flex;
    align-items: center;
    gap: 8px;
}

/* Central Lock Screen Keypad */
.lock-screen-wrapper {
    flex: 1;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 20px 0;
}

.lock-card {
    width: 100%;
    max-width: 420px;
    padding: 32px 24px;
    text-align: center;
    animation: fadeInUp 0.6s cubic-bezier(0.16, 1, 0.3, 1) both;
}

.lock-icon-container {
    width: 68px;
    height: 68px;
    margin: 0 auto 20px;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-glass);
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    color: var(--primary);
    font-size: 1.8rem;
    box-shadow: inset 0 0 12px rgba(255, 255, 255, 0.05);
    transition: transform var(--transition-normal), color var(--transition-normal);
}

.lock-card:hover .lock-icon-container {
    transform: scale(1.05);
    color: var(--secondary);
}

.lock-card h2 {
    font-size: 1.8rem;
    margin-bottom: 8px;
}

.lock-card p {
    font-size: 0.9rem;
    color: var(--text-muted);
    margin-bottom: 24px;
}

/* Pin Display Indicators */
.pin-dots-container {
    display: flex;
    justify-content: center;
    gap: 16px;
    margin-bottom: 28px;
}

.pin-dot {
    width: 16px;
    height: 16px;
    border-radius: 50%;
    border: 2px solid var(--border-glass);
    transition: background-color var(--transition-fast), border-color var(--transition-fast), box-shadow var(--transition-fast);
}

.pin-dot.filled {
    background-color: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 10px var(--primary-glow);
}

.pin-dot.error {
    background-color: var(--danger);
    border-color: var(--danger);
    box-shadow: 0 0 10px rgba(244, 63, 94, 0.5);
}

/* Keypad Grid Layout */
.keypad-grid {
    display: grid;
    grid-template-columns: repeat(3, 1fr);
    gap: 16px;
    max-width: 280px;
    margin: 0 auto 24px;
}

.keypad-btn {
    width: 72px;
    height: 72px;
    border-radius: 50%;
    border: 1px solid var(--border-glass);
    background: rgba(255, 255, 255, 0.02);
    color: var(--text-main);
    font-size: 1.6rem;
    font-family: var(--font-header);
    font-weight: 500;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    user-select: none;
    transition: background-color var(--transition-fast), border-color var(--transition-fast), transform var(--transition-fast), box-shadow var(--transition-fast);
}

.keypad-btn:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
}

.keypad-btn:active {
    transform: scale(0.92);
    background: var(--primary);
    border-color: var(--primary);
    box-shadow: 0 0 15px var(--primary-glow);
}

.keypad-btn.action-btn {
    font-size: 1rem;
    color: var(--text-muted);
}

.keypad-btn.action-btn:active {
    background: rgba(255, 255, 255, 0.15);
    border-color: rgba(255, 255, 255, 0.2);
    box-shadow: none;
}

/* Directory Tag Search Engine UI */
.search-gate-container {
    width: 100%;
    max-width: 320px;
    margin: 24px auto 0;
    position: relative;
}

.search-input {
    width: 100%;
    padding: 10px 16px 10px 38px;
    border-radius: 50px;
    border: 1px solid var(--border-glass);
    background: rgba(255, 255, 255, 0.03);
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 0.85rem;
    transition: all var(--transition-normal);
}

.search-input:focus {
    outline: none;
    background: rgba(255, 255, 255, 0.06);
    border-color: var(--border-glass-focus);
    box-shadow: 0 0 10px var(--primary-glow);
}

.search-icon-fixed {
    position: absolute;
    left: 14px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--text-muted);
    font-size: 0.9rem;
    pointer-events: none;
}

.search-results-list {
    position: absolute;
    top: calc(100% + 8px);
    left: 0;
    right: 0;
    background: rgba(15, 17, 35, 0.95);
    border: 1px solid var(--border-glass);
    border-radius: 12px;
    max-height: 200px;
    overflow-y: auto;
    z-index: 100;
    box-shadow: var(--shadow-lg);
    display: none;
}

.search-results-list.active {
    display: block;
    animation: fadeInUp 0.25s cubic-bezier(0.16, 1, 0.3, 1);
}

.search-result-item {
    padding: 10px 16px;
    cursor: pointer;
    border-bottom: 1px solid rgba(255, 255, 255, 0.04);
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: background var(--transition-fast);
}

.search-result-item:last-child {
    border-bottom: none;
}

.search-result-item:hover {
    background: rgba(255, 255, 255, 0.06);
}

.search-result-name {
    font-size: 0.85rem;
    font-weight: 500;
}

.search-result-tag {
    font-size: 0.75rem;
    color: var(--secondary);
    background: rgba(168, 85, 247, 0.15);
    padding: 2px 8px;
    border-radius: 10px;
}

/* Common Buttons Styling */
.btn {
    display: inline-flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    padding: 10px 20px;
    font-family: var(--font-body);
    font-weight: 500;
    font-size: 0.9rem;
    border-radius: 12px;
    border: 1px solid transparent;
    cursor: pointer;
    transition: all var(--transition-normal);
}

.btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--secondary));
    color: #fff;
    box-shadow: 0 4px 15px var(--primary-glow);
}

.btn-primary:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 20px var(--primary-glow), 0 0 10px var(--primary);
}

.btn-primary:active {
    transform: translateY(0);
}

.btn-secondary {
    background: rgba(255, 255, 255, 0.04);
    border: 1px solid var(--border-glass);
    color: var(--text-main);
}

.btn-secondary:hover {
    background: rgba(255, 255, 255, 0.08);
    border-color: rgba(255, 255, 255, 0.15);
}

.btn-danger {
    background: rgba(244, 63, 94, 0.1);
    border: 1px solid rgba(244, 63, 94, 0.2);
    color: var(--danger);
}

.btn-danger:hover {
    background: var(--danger);
    color: #fff;
    box-shadow: 0 4px 12px rgba(244, 63, 94, 0.3);
}

/* User & Admin Layout Shells */
.dashboard-grid {
    display: grid;
    grid-template-columns: 1fr;
    gap: 24px;
}

@media (min-width: 768px) {
    .dashboard-grid {
        grid-template-columns: 320px 1fr;
    }
}

.sidebar-panel {
    height: fit-content;
    padding: 20px;
}

.main-content-panel {
    padding: 24px;
}

/* List UI for Directories in Admin */
.dir-list-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 16px;
}

.dir-items-container {
    display: flex;
    flex-direction: column;
    gap: 12px;
}

.dir-item-card {
    padding: 16px;
    cursor: pointer;
    border: 1px solid var(--border-glass);
    background: rgba(255, 255, 255, 0.02);
    border-radius: 12px;
    display: flex;
    justify-content: space-between;
    align-items: center;
    transition: all var(--transition-normal);
}

.dir-item-card:hover {
    border-color: var(--border-glass-focus);
    background: rgba(255, 255, 255, 0.05);
    transform: translateX(4px);
}

.dir-item-card.active {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.06);
    box-shadow: inset 0 0 10px rgba(99, 102, 241, 0.05);
}

.dir-item-info {
    display: flex;
    flex-direction: column;
    gap: 4px;
}

.dir-item-name {
    font-weight: 600;
    font-size: 0.95rem;
}

.dir-item-meta {
    display: flex;
    gap: 12px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.dir-item-meta span {
    display: flex;
    align-items: center;
    gap: 4px;
}

.tag-badge {
    background: rgba(168, 85, 247, 0.1);
    color: #c084fc;
    border: 1px solid rgba(168, 85, 247, 0.2);
    padding: 2px 6px;
    border-radius: 6px;
    font-size: 0.7rem;
    font-weight: 500;
}

/* File explorer breadcrumbs */
.explorer-breadcrumbs {
    display: flex;
    align-items: center;
    gap: 8px;
    margin-bottom: 20px;
    font-size: 0.85rem;
    background: rgba(255, 255, 255, 0.02);
    padding: 8px 16px;
    border-radius: 8px;
    border: 1px solid var(--border-glass);
}

.breadcrumb-item {
    color: var(--text-muted);
    cursor: pointer;
    transition: color var(--transition-fast);
}

.breadcrumb-item:hover {
    color: var(--primary);
}

.breadcrumb-item.active {
    color: var(--text-main);
    font-weight: 500;
    cursor: default;
}

.breadcrumb-separator {
    color: var(--text-dark);
}

/* Subdirectory Create Option (Manual) */
.sub-actions-bar {
    display: flex;
    flex-wrap: wrap;
    gap: 12px;
    margin-bottom: 20px;
}

.form-inline {
    display: flex;
    gap: 8px;
    flex: 1;
    min-width: 250px;
}

.form-input {
    flex: 1;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-glass);
    border-radius: 8px;
    padding: 8px 14px;
    color: var(--text-main);
    font-family: var(--font-body);
    font-size: 0.85rem;
    transition: all var(--transition-normal);
}

.form-input:focus {
    outline: none;
    border-color: var(--border-glass-focus);
    background: rgba(255, 255, 255, 0.06);
}

.form-group {
    margin-bottom: 16px;
    display: flex;
    flex-direction: column;
    gap: 6px;
    text-align: left;
}

.form-group label {
    font-size: 0.85rem;
    font-weight: 500;
    color: var(--text-muted);
}

/* Drag and Drop Zone */
.drag-drop-zone {
    border: 2px dashed rgba(255, 255, 255, 0.15);
    background: rgba(255, 255, 255, 0.01);
    border-radius: 16px;
    padding: 36px 20px;
    text-align: center;
    cursor: pointer;
    margin-bottom: 24px;
    transition: all var(--transition-normal);
    position: relative;
    overflow: hidden;
}

.drag-drop-zone.drag-over {
    border-color: var(--primary);
    background: rgba(99, 102, 241, 0.08);
    box-shadow: 0 0 20px rgba(99, 102, 241, 0.15);
    transform: scale(1.01);
}

.drag-drop-icon {
    font-size: 2.5rem;
    color: var(--text-muted);
    margin-bottom: 12px;
    transition: transform var(--transition-normal), color var(--transition-normal);
}

.drag-drop-zone.drag-over .drag-drop-icon {
    transform: translateY(-5px);
    color: var(--primary);
}

.drag-drop-text h4 {
    font-size: 1rem;
    margin-bottom: 4px;
}

.drag-drop-text p {
    font-size: 0.8rem;
    color: var(--text-muted);
}

/* Upload Progress Window Overlay */
.progress-window {
    position: fixed;
    bottom: 24px;
    right: 24px;
    width: 320px;
    background: rgba(11, 13, 27, 0.95);
    border: 1px solid var(--border-glass);
    box-shadow: var(--shadow-lg);
    border-radius: 12px;
    padding: 16px;
    z-index: 1000;
    display: none;
    animation: fadeInUp var(--transition-normal);
}

.progress-window.active {
    display: block;
}

.progress-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 12px;
}

.progress-title {
    font-weight: 600;
    font-size: 0.85rem;
}

.progress-bar-container {
    height: 6px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 3px;
    overflow: hidden;
    margin-bottom: 8px;
}

.progress-bar-fill {
    height: 100%;
    width: 0;
    background: linear-gradient(90deg, var(--primary), var(--secondary));
    border-radius: 3px;
    transition: width var(--transition-fast);
}

.progress-meta {
    display: flex;
    justify-content: space-between;
    font-size: 0.75rem;
    color: var(--text-muted);
}

/* File Listing UI */
.file-list-card {
    display: flex;
    flex-direction: column;
    gap: 1px;
    background: rgba(255, 255, 255, 0.04);
    border-radius: 12px;
    overflow: hidden;
    border: 1px solid var(--border-glass);
}

.file-row-item {
    display: flex;
    align-items: center;
    padding: 12px 16px;
    background: var(--surface-glass);
    transition: background var(--transition-fast);
    border-bottom: 1px solid rgba(255, 255, 255, 0.03);
}

.file-row-item:last-child {
    border-bottom: none;
}

.file-row-item:hover {
    background: var(--surface-glass-hover);
}

.file-icon {
    width: 36px;
    height: 36px;
    border-radius: 8px;
    display: flex;
    align-items: center;
    justify-content: center;
    font-size: 1.2rem;
    margin-right: 12px;
    flex-shrink: 0;
    background: rgba(255, 255, 255, 0.03);
    border: 1px solid var(--border-glass);
}

.file-icon.folder {
    color: #eab308;
    background: rgba(234, 179, 8, 0.08);
    border-color: rgba(234, 179, 8, 0.15);
}

.file-icon.doc {
    color: #3b82f6;
    background: rgba(59, 130, 246, 0.08);
    border-color: rgba(59, 130, 246, 0.15);
}

.file-icon.image {
    color: #ec4899;
    background: rgba(236, 72, 153, 0.08);
    border-color: rgba(236, 72, 153, 0.15);
}

.file-icon.archive {
    color: #a855f7;
    background: rgba(168, 85, 247, 0.08);
    border-color: rgba(168, 85, 247, 0.15);
}

.file-details {
    flex: 1;
    min-width: 0;
    display: flex;
    flex-direction: column;
    gap: 2px;
    text-align: left;
}

.file-name {
    font-weight: 500;
    font-size: 0.9rem;
    white-space: nowrap;
    overflow: hidden;
    text-overflow: ellipsis;
}

.file-meta-row {
    display: flex;
    gap: 12px;
    font-size: 0.75rem;
    color: var(--text-muted);
}

.dl-badge {
    background: rgba(16, 185, 129, 0.1);
    color: #34d399;
    border: 1px solid rgba(16, 185, 129, 0.15);
    padding: 1px 6px;
    border-radius: 4px;
    font-size: 0.7rem;
    font-weight: 600;
    display: inline-flex;
    align-items: center;
    gap: 3px;
}

.file-actions {
    display: flex;
    align-items: center;
    gap: 8px;
}

/* User Directory Overview Panel */
.user-dir-header {
    display: flex;
    flex-direction: column;
    gap: 8px;
    margin-bottom: 24px;
}

.user-stats-row {
    display: flex;
    gap: 16px;
    flex-wrap: wrap;
    margin-bottom: 20px;
}

.stat-card {
    flex: 1;
    min-width: 140px;
    padding: 16px;
    text-align: center;
}

.stat-value {
    font-size: 1.8rem;
    font-weight: 700;
    color: var(--success);
    font-family: var(--font-header);
}

.stat-label {
    font-size: 0.75rem;
    color: var(--text-muted);
    text-transform: uppercase;
    letter-spacing: 0.05em;
    margin-top: 2px;
}

/* Modal Window Layouts */
.modal-overlay {
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(5, 6, 15, 0.8);
    backdrop-filter: blur(8px);
    display: flex;
    align-items: center;
    justify-content: center;
    z-index: 2000;
    opacity: 0;
    pointer-events: none;
    transition: opacity var(--transition-normal);
}

.modal-overlay.active {
    opacity: 1;
    pointer-events: auto;
}

.modal-container {
    width: 100%;
    max-width: 440px;
    padding: 28px;
    transform: scale(0.95);
    transition: transform var(--transition-normal);
}

.modal-overlay.active .modal-container {
    transform: scale(1);
}

.modal-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: 20px;
}

.modal-title {
    font-size: 1.3rem;
}

.modal-close-btn {
    background: none;
    border: none;
    color: var(--text-muted);
    font-size: 1.4rem;
    cursor: pointer;
    transition: color var(--transition-fast);
}

.modal-close-btn:hover {
    color: var(--danger);
}

/* Animations declarations */
@keyframes fadeInUp {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

@keyframes shake {
    0%, 100% { transform: translateX(0); }
    20%, 60% { transform: translateX(-8px); }
    40%, 80% { transform: translateX(8px); }
}

.shake-animation {
    animation: shake 0.4s cubic-bezier(.36,.07,.19,.97) both;
}

/* Mobile responsive fixes */
@media (max-width: 576px) {
    .app-container {
        padding: 12px;
    }
    
    .main-content-panel {
        padding: 16px;
    }
    
    .keypad-grid {
        gap: 12px;
    }
    
    .keypad-btn {
        width: 64px;
        height: 64px;
        font-size: 1.4rem;
    }
    
    .app-header {
        flex-direction: column;
        gap: 12px;
        align-items: stretch;
        text-align: center;
    }
    
    .logo-section {
        justify-content: center;
    }
    
    .user-badge {
        justify-content: center;
    }
    
    .sub-actions-bar {
        flex-direction: column;
    }
    
    .form-inline {
        width: 100%;
    }
}