/* css/style.css */

/* ===== VARIABLES & RESET ===== */
:root {
    /* Color System */
    --primary: #3a86ff;
    --primary-dark: #2a6fd7;
    --primary-light: #e7f1ff;
    --secondary: #6c757d;
    --success: #38b000;
    --success-dark: #2d9100;
    --warning: #ff9e00;
    --warning-dark: #cc7e00;
    --danger: #ef476f;
    --danger-dark: #d43d5f;
    --info: #17a2b8;
    --light: #f8f9fa;
    --dark: #212529;
    --gray-100: #f8f9fa;
    --gray-200: #e9ecef;
    --gray-300: #dee2e6;
    --gray-400: #ced4da;
    --gray-500: #adb5bd;
    --gray-600: #6c757d;
    --gray-700: #495057;
    --gray-800: #343a40;
    --gray-900: #212529;
    
    /* Design Tokens */
    --border-radius: 12px;
    --border-radius-sm: 8px;
    --border-radius-lg: 16px;
    --box-shadow: 0 4px 20px rgba(0, 0, 0, 0.08);
    --box-shadow-lg: 0 10px 40px rgba(0, 0, 0, 0.12);
    --box-shadow-sm: 0 2px 10px rgba(0, 0, 0, 0.05);
    --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
    --transition-fast: all 0.15s ease;
    --transition-slow: all 0.5s ease;
    
    /* Spacing */
    --spacing-xs: 0.25rem;
    --spacing-sm: 0.5rem;
    --spacing-md: 1rem;
    --spacing-lg: 1.5rem;
    --spacing-xl: 2rem;
    --spacing-xxl: 3rem;
    
    /* Typography */
    --font-size-xs: 0.75rem;
    --font-size-sm: 0.875rem;
    --font-size-base: 1rem;
    --font-size-lg: 1.125rem;
    --font-size-xl: 1.25rem;
    --font-size-xxl: 1.5rem;
    
    /* Z-index layers */
    --z-dropdown: 1000;
    --z-sticky: 1020;
    --z-fixed: 1030;
    --z-modal-backdrop: 1040;
    --z-modal: 1050;
    --z-popover: 1060;
    --z-tooltip: 1070;
    --z-notification: 1080;
}

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

html {
    font-size: 16px;
    scroll-behavior: smooth;
}

body {
    font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Oxygen, Ubuntu, Cantarell, 'Open Sans', 'Helvetica Neue', sans-serif;
    font-size: var(--font-size-sm);
    line-height: 1.6;
    color: var(--gray-900);
    background-color: #f8fafc;
    -webkit-font-smoothing: antialiased;
    -moz-osx-font-smoothing: grayscale;
    min-height: 100vh;
    padding-top: env(safe-area-inset-top);
    padding-bottom: env(safe-area-inset-bottom);
}

/* ===== LAYOUT ===== */
.container {
    width: 100%;
    max-width: 1200px;
    margin: 0 auto;
    padding: 0 var(--spacing-md);
    padding-left: calc(var(--spacing-md) * 2); /* 2rem */
    padding-right: calc(var(--spacing-md) * 2);
}

/* ===== HEADER ===== */
.app-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: var(--spacing-lg) 0;
    position: sticky;
    top: 0;
    z-index: var(--z-sticky);
    box-shadow: var(--box-shadow);
    backdrop-filter: blur(10px);
    background-color: rgba(58, 134, 255, 0.95);
    padding-left: calc(var(--spacing-md) * 2); /* 2rem */
    padding-right: calc(var(--spacing-md) * 2);
}

.header-content {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
    padding: 0 var(--spacing-sm);
}

.app-title {
    font-size: var(--font-size-xl);
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    letter-spacing: -0.5px;
}

.app-title i {
    font-size: 1.4rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 8px;
    border-radius: 10px;
}

.app-subtitle {
    font-size: var(--font-size-sm);
    opacity: 0.9;
    margin: 0;
    font-weight: 400;
}

/* ===== MAIN CONTENT ===== */
.main-container {
    padding: var(--spacing-xl) 0;
}

/* ===== SEARCH SECTION ===== */
.search-section {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    margin-bottom: var(--spacing-lg);
    box-shadow: var(--box-shadow);
    border: 1px solid var(--gray-200);
    position: relative;
    overflow: hidden;
}

.search-section::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    right: 0;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--success));
}

.search-box {
    position: relative;
    margin-bottom: var(--spacing-lg);
}

.search-icon {
    position: absolute;
    left: 18px;
    top: 50%;
    transform: translateY(-50%);
    color: var(--primary);
    font-size: 1.1rem;
    z-index: 2;
}

.search-input {
    width: 100%;
    padding: 16px 20px 16px 50px;
    font-size: var(--font-size-base);
    border: 2px solid var(--gray-300);
    border-radius: var(--border-radius);
    background-color: white;
    color: var(--gray-900);
    transition: var(--transition);
    font-family: inherit;
}

.search-input:focus {
    outline: none;
    border-color: var(--primary);
    background-color: white;
    box-shadow: 0 0 0 4px rgba(58, 134, 255, 0.15);
    transform: translateY(-1px);
}

.search-input::placeholder {
    color: var(--gray-500);
    font-weight: 400;
}

.clear-btn {
    position: absolute;
    right: 16px;
    top: 50%;
    transform: translateY(-50%);
    background: var(--gray-200);
    border: none;
    color: var(--gray-600);
    font-size: 0.9rem;
    width: 32px;
    height: 32px;
    border-radius: 50%;
    cursor: pointer;
    display: none;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
}

.clear-btn:hover {
    background: var(--gray-300);
    color: var(--danger);
    transform: translateY(-50%) scale(1.1);
}

.clear-btn:active {
    transform: translateY(-50%) scale(0.95);
}

.search-hint {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    padding: 12px 16px;
    background-color: var(--primary-light);
    border-radius: var(--border-radius-sm);
    border-left: 4px solid var(--primary);
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    animation: fadeIn 0.5s ease;
}

.search-hint i {
    font-size: 1rem;
    color: var(--primary);
    flex-shrink: 0;
}

/* ===== ANNOUNCEMENT SECTION ===== */
.announcement-section {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    margin-bottom: var(--spacing-xl);
    position: relative;
    overflow: hidden;
    box-shadow: var(--box-shadow);
    border-left: 5px solid var(--warning);
}

.announcement-section::before {
    content: '';
    position: absolute;
    top: -50%;
    right: -20%;
    width: 200px;
    height: 200px;
    background: rgba(255, 255, 255, 0.1);
    border-radius: 50%;
}

.announcement-section::after {
    content: '';
    position: absolute;
    bottom: -30%;
    left: -10%;
    width: 150px;
    height: 150px;
    background: rgba(255, 255, 255, 0.05);
    border-radius: 50%;
}

.announcement-header {
    display: flex;
    justify-content: space-between;
    align-items: center;
    margin-bottom: var(--spacing-sm);
    position: relative;
    z-index: 1;
}

.announcement-title {
    font-size: var(--font-size-base);
    font-weight: 700;
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.announcement-title i {
    font-size: 1.1rem;
    background: rgba(255, 255, 255, 0.2);
    padding: 6px;
    border-radius: 8px;
}

.announcement-date {
    font-size: var(--font-size-xs);
    opacity: 0.9;
    background: rgba(255, 255, 255, 0.15);
    padding: 4px 10px;
    border-radius: 15px;
    font-weight: 500;
}

.announcement-content {
    position: relative;
    z-index: 1;
}

.announcement-text {
    font-size: var(--font-size-sm);
    line-height: 1.6;
    margin-bottom: var(--spacing-md);
    opacity: 0.95;
}

.announcement-actions {
    display: flex;
    gap: var(--spacing-sm);
    margin-top: var(--spacing-md);
}

.announcement-btn {
    padding: 8px 16px;
    background: rgba(255, 255, 255, 0.2);
    border: 2px solid rgba(255, 255, 255, 0.3);
    color: white;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 600;
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    gap: 6px;
    text-decoration: none;
    backdrop-filter: blur(5px);
}

.announcement-btn:hover {
    background: rgba(255, 255, 255, 0.3);
    border-color: rgba(255, 255, 255, 0.5);
    transform: translateY(-1px);
}

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

.announcement-btn-primary:hover {
    background: rgba(255, 255, 255, 0.9);
    color: var(--primary-dark);
}

.announcement-close {
    position: absolute;
    top: 12px;
    right: 12px;
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    width: 28px;
    height: 28px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    cursor: pointer;
    transition: var(--transition);
    z-index: 2;
    font-size: 0.9rem;
}

.announcement-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

/* Announcement Types */
.announcement-section.info {
    background: linear-gradient(135deg, var(--info), #138496);
    border-left-color: var(--info);
}

.announcement-section.warning {
    background: linear-gradient(135deg, var(--warning), var(--warning-dark));
    border-left-color: var(--warning);
}

.announcement-section.danger {
    background: linear-gradient(135deg, var(--danger), var(--danger-dark));
    border-left-color: var(--danger);
}

.announcement-section.success {
    background: linear-gradient(135deg, var(--success), var(--success-dark));
    border-left-color: var(--success);
}

/* ===== LOADING INDICATOR ===== */
.loading-indicator {
    display: none;
    text-align: center;
    padding: var(--spacing-xl);
    color: var(--primary);
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: var(--spacing-xl);
    animation: fadeIn 0.3s ease;
}

.spinner {
    width: 40px;
    height: 40px;
    border: 4px solid var(--gray-200);
    border-top: 4px solid var(--primary);
    border-radius: 50%;
    animation: spin 1s linear infinite;
    margin: 0 auto var(--spacing-md);
}

.loading-indicator span {
    font-size: var(--font-size-base);
    font-weight: 500;
    color: var(--gray-700);
}

/* ===== RESULTS SECTION ===== */
.results-section {
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    margin-bottom: var(--spacing-xl);
    overflow: hidden;
    display: none;
    animation: slideUp 0.4s ease;
}

.results-header {
    background: linear-gradient(to right, var(--gray-100), var(--gray-200));
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-300);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: sticky;
    top: 0;
    z-index: 1;
}

.results-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-900);
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
}

.results-title i {
    color: var(--danger);
}

.results-count {
    font-size: var(--font-size-sm);
    background: var(--primary);
    color: white;
    padding: 6px 14px;
    border-radius: 20px;
    font-weight: 600;
    box-shadow: var(--box-shadow-sm);
}

.results-list {
    max-height: 60vh;
    overflow-y: auto;
    -webkit-overflow-scrolling: touch;
    scrollbar-width: thin;
    scrollbar-color: var(--primary) var(--gray-200);
}

.results-list::-webkit-scrollbar {
    width: 6px;
}

.results-list::-webkit-scrollbar-track {
    background: var(--gray-200);
}

.results-list::-webkit-scrollbar-thumb {
    background: var(--primary);
    border-radius: 3px;
}

.results-list::-webkit-scrollbar-thumb:hover {
    background: var(--primary-dark);
}

/* ===== RESULT ITEM ===== */
.result-item {
    padding: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
    transition: var(--transition);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    animation: fadeIn 0.5s ease backwards;
}

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

.result-item:hover {
    background-color: var(--gray-100);
    transform: translateX(4px);
}

.result-item:hover .file-icon {
    transform: scale(1.1);
}

.file-icon {
    color: var(--danger);
    font-size: 1.8rem;
    flex-shrink: 0;
    transition: var(--transition);
    margin-top: 2px;
}

.file-info {
    flex: 1;
    min-width: 0; /* Untuk mencegah overflow */
}

.file-name {
    font-size: var(--font-size-base);
    font-weight: 600;
    color: var(--gray-900);
    margin-bottom: var(--spacing-sm);
    line-height: 1.4;
}

.file-name a {
    color: inherit;
    text-decoration: none;
    display: block;
    transition: var(--transition-fast);
}

.file-name a:hover {
    color: var(--primary);
}

.file-meta {
    display: flex;
    flex-wrap: wrap;
    gap: var(--spacing-md);
    margin-bottom: var(--spacing-md);
}

.meta-item {
    display: flex;
    align-items: center;
    gap: 6px;
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    background: var(--gray-100);
    padding: 6px 12px;
    border-radius: var(--border-radius-sm);
}

.meta-item i {
    font-size: 0.9rem;
    color: var(--gray-500);
}

.file-actions {
    display: flex;
    gap: var(--spacing-sm);
    flex-wrap: wrap;
}

.action-btn {
    padding: 10px 20px;
    font-size: var(--font-size-sm);
    border: none;
    border-radius: var(--border-radius-sm);
    cursor: pointer;
    transition: var(--transition);
    display: flex;
    align-items: center;
    justify-content: center;
    gap: 8px;
    text-decoration: none;
    font-weight: 500;
    flex: 1;
    min-width: 120px;
}

.action-btn i {
    font-size: 1rem;
}

.action-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow);
}

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

.btn-preview {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
}

.btn-preview:hover {
    background: linear-gradient(135deg, var(--primary-dark), #1e5fc4);
    color: white;
}

.btn-download {
    background: linear-gradient(135deg, var(--success), var(--success-dark));
    color: white;
}

.btn-download:hover {
    background: linear-gradient(135deg, var(--success-dark), #248500);
    color: white;
}

.btn-info {
    background: linear-gradient(135deg, var(--gray-600), var(--gray-700));
    color: white;
    flex: 0.5;
    min-width: auto;
}

.btn-info:hover {
    background: linear-gradient(135deg, var(--gray-700), var(--gray-800));
    color: white;
}

/* ===== EMPTY STATE ===== */
.empty-state {
    text-align: center;
    padding: var(--spacing-xxl) var(--spacing-xl);
    display: none;
    background: white;
    border-radius: var(--border-radius);
    box-shadow: var(--box-shadow);
    animation: fadeIn 0.5s ease;
}

.empty-icon {
    font-size: 4rem;
    color: var(--gray-300);
    margin-bottom: var(--spacing-lg);
    animation: bounce 2s infinite;
}

.empty-title {
    font-size: var(--font-size-xl);
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-sm);
}

.empty-text {
    font-size: var(--font-size-base);
    color: var(--gray-600);
    max-width: 400px;
    margin: 0 auto;
    line-height: 1.6;
}

/* ===== MODAL ===== */
.modal-overlay {
    display: none;
    position: fixed;
    top: 0;
    left: 0;
    right: 0;
    bottom: 0;
    background: rgba(0, 0, 0, 0.7);
    backdrop-filter: blur(4px);
    z-index: var(--z-modal-backdrop);
    align-items: center;
    justify-content: center;
    padding: var(--spacing-md);
    animation: fadeIn 0.3s ease;
}

.modal-overlay.show {
    display: flex;
}

.file-modal {
    background: white;
    border-radius: var(--border-radius-lg);
    width: 100%;
    max-width: 500px;
    max-height: 90vh;
    overflow: hidden;
    box-shadow: var(--box-shadow-lg);
    animation: modalSlideIn 0.4s cubic-bezier(0.4, 0, 0.2, 1);
}

.modal-header {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
    padding: var(--spacing-lg) var(--spacing-xl);
    display: flex;
    justify-content: space-between;
    align-items: center;
    position: relative;
    overflow: hidden;
}

.modal-header::before {
    content: '';
    position: absolute;
    top: -50%;
    left: -50%;
    width: 200%;
    height: 200%;
    background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.1) 50%, transparent 70%);
    animation: shimmer 3s infinite linear;
}

.modal-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    margin: 0;
    display: flex;
    align-items: center;
    gap: var(--spacing-sm);
    position: relative;
    z-index: 1;
}

.modal-close {
    background: rgba(255, 255, 255, 0.2);
    border: none;
    color: white;
    font-size: 1.25rem;
    cursor: pointer;
    width: 36px;
    height: 36px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    transition: var(--transition);
    position: relative;
    z-index: 1;
}

.modal-close:hover {
    background: rgba(255, 255, 255, 0.3);
    transform: rotate(90deg);
}

.modal-body {
    padding: var(--spacing-xl);
    overflow-y: auto;
    max-height: calc(90vh - 80px);
}

.file-preview-small {
    width: 100%;
    height: 180px;
    background: linear-gradient(135deg, var(--gray-100), var(--gray-200));
    border-radius: var(--border-radius);
    display: flex;
    align-items: center;
    justify-content: center;
    margin-bottom: var(--spacing-xl);
    border: 2px dashed var(--gray-300);
    position: relative;
    overflow: hidden;
}

.file-preview-small i {
    font-size: 4rem;
    color: var(--danger);
    opacity: 0.8;
    animation: float 3s ease-in-out infinite;
}

.file-type-badge {
    position: absolute;
    bottom: 16px;
    right: 16px;
    background: var(--primary);
    color: white;
    padding: 6px 12px;
    border-radius: var(--border-radius-sm);
    font-size: var(--font-size-xs);
    font-weight: 700;
    text-transform: uppercase;
    letter-spacing: 0.5px;
    box-shadow: var(--box-shadow-sm);
}

/* Modal Info Rows */
.info-row {
    display: flex;
    justify-content: space-between;
    align-items: flex-start;
    margin-bottom: var(--spacing-lg);
    padding-bottom: var(--spacing-lg);
    border-bottom: 1px solid var(--gray-200);
    animation: fadeIn 0.5s ease backwards;
}

.info-row:last-child {
    border-bottom: none;
    margin-bottom: 0;
    padding-bottom: 0;
}

.info-label {
    font-weight: 600;
    color: var(--gray-700);
    font-size: var(--font-size-sm);
    flex: 0 0 120px;
}

.info-value {
    color: var(--gray-900);
    font-size: var(--font-size-base);
    text-align: right;
    flex: 1;
    margin-left: var(--spacing-md);
    word-break: break-word;
    line-height: 1.5;
}

/* Modal Actions */
.modal-actions {
    display: flex;
    gap: var(--spacing-md);
    margin-top: var(--spacing-xl);
    padding-top: var(--spacing-lg);
    border-top: 1px solid var(--gray-200);
}

.modal-btn {
    flex: 1;
    padding: 14px 20px;
    border: none;
    border-radius: var(--border-radius);
    font-size: var(--font-size-base);
    font-weight: 600;
    cursor: pointer;
    display: flex;
    align-items: center;
    justify-content: center;
    gap: var(--spacing-sm);
    transition: var(--transition);
    text-decoration: none;
}

.modal-btn:hover {
    transform: translateY(-2px);
    box-shadow: var(--box-shadow);
}

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

.modal-btn-primary {
    background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    color: white;
}

.modal-btn-primary:hover {
    background: linear-gradient(135deg, var(--primary-dark), #1e5fc4);
}

.modal-btn-secondary {
    background: linear-gradient(135deg, var(--gray-600), var(--gray-700));
    color: white;
}

.modal-btn-secondary:hover {
    background: linear-gradient(135deg, var(--gray-700), var(--gray-800));
}

/* ===== STATISTICS ===== */
.stats-section {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-xl);
    box-shadow: var(--box-shadow);
    margin-bottom: var(--spacing-xl);
    display: none;
    animation: fadeIn 0.5s ease;
}

.stats-title {
    font-size: var(--font-size-lg);
    font-weight: 600;
    color: var(--gray-700);
    margin-bottom: var(--spacing-lg);
    text-align: center;
    position: relative;
    padding-bottom: var(--spacing-md);
}

.stats-title::after {
    content: '';
    position: absolute;
    bottom: 0;
    left: 50%;
    transform: translateX(-50%);
    width: 60px;
    height: 3px;
    background: linear-gradient(90deg, var(--primary), var(--success));
    border-radius: 2px;
}

.stats-grid {
    display: grid;
    grid-template-columns: repeat(auto-fit, minmax(200px, 1fr));
    gap: var(--spacing-md);
}

.stat-item {
    background: linear-gradient(135deg, var(--gray-100), var(--gray-50));
    padding: var(--spacing-lg);
    border-radius: var(--border-radius);
    text-align: center;
    border: 1px solid var(--gray-200);
    transition: var(--transition);
    position: relative;
    overflow: hidden;
}

.stat-item:hover {
    transform: translateY(-4px);
    box-shadow: var(--box-shadow);
    border-color: var(--primary);
}

.stat-item::before {
    content: '';
    position: absolute;
    top: 0;
    left: 0;
    width: 100%;
    height: 4px;
    background: linear-gradient(90deg, var(--primary), var(--success));
}

.stat-value {
    font-size: 2rem;
    font-weight: 800;
    color: var(--primary);
    margin-bottom: var(--spacing-sm);
    line-height: 1;
    background: linear-gradient(135deg, var(--primary), var(--success));
    -webkit-background-clip: text;
    -webkit-text-fill-color: transparent;
    background-clip: text;
}

.stat-label {
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    text-transform: uppercase;
    letter-spacing: 1px;
    font-weight: 600;
}

/* ===== NOTIFICATIONS ===== */
.notification-container {
    position: fixed;
    top: var(--spacing-xl);
    right: var(--spacing-xl);
    z-index: var(--z-notification);
    max-width: 400px;
    width: calc(100% - 40px);
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.notification {
    background: white;
    border-radius: var(--border-radius);
    padding: var(--spacing-lg);
    box-shadow: var(--box-shadow-lg);
    display: flex;
    align-items: flex-start;
    gap: var(--spacing-md);
    border-left: 5px solid var(--primary);
    transform: translateX(120%);
    transition: transform 0.4s cubic-bezier(0.4, 0, 0.2, 1);
    animation: slideInRight 0.4s ease forwards;
    backdrop-filter: blur(10px);
    background: rgba(255, 255, 255, 0.95);
}

.notification.show {
    transform: translateX(0);
}

.notification-icon {
    font-size: 1.5rem;
    flex-shrink: 0;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    display: flex;
    align-items: center;
    justify-content: center;
    background: var(--primary-light);
}

.notification-content {
    flex: 1;
    min-width: 0;
}

.notification-title {
    font-size: var(--font-size-base);
    font-weight: 600;
    margin-bottom: 4px;
    color: var(--gray-900);
}

.notification-message {
    font-size: var(--font-size-sm);
    color: var(--gray-700);
    line-height: 1.5;
}

.notification-close {
    background: none;
    border: none;
    color: var(--gray-500);
    font-size: 1rem;
    cursor: pointer;
    padding: 4px;
    flex-shrink: 0;
    transition: var(--transition-fast);
    border-radius: 4px;
}

.notification-close:hover {
    color: var(--gray-700);
    background: var(--gray-200);
}

/* Notification Types */
.notification.success {
    border-left-color: var(--success);
}

.notification.success .notification-icon {
    color: var(--success);
    background: rgba(56, 176, 0, 0.1);
}

.notification.warning {
    border-left-color: var(--warning);
}

.notification.warning .notification-icon {
    color: var(--warning);
    background: rgba(255, 158, 0, 0.1);
}

.notification.error {
    border-left-color: var(--danger);
}

.notification.error .notification-icon {
    color: var(--danger);
    background: rgba(239, 71, 111, 0.1);
}

.notification.info {
    border-left-color: var(--primary);
}

.notification.info .notification-icon {
    color: var(--primary);
    background: rgba(58, 134, 255, 0.1);
}

/* ===== FOOTER ===== */
.app-footer {
    text-align: center;
    padding: var(--spacing-xl) 0;
    font-size: var(--font-size-sm);
    color: var(--gray-600);
    border-top: 1px solid var(--gray-200);
    margin-top: var(--spacing-xl);
    background: white;
}

.app-footer .container {
    display: flex;
    flex-direction: column;
    gap: var(--spacing-sm);
}

.app-footer p {
    margin: 0;
}

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

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

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

@keyframes slideInRight {
    from {
        opacity: 0;
        transform: translateX(120%);
    }
    to {
        opacity: 1;
        transform: translateX(0);
    }
}

@keyframes modalSlideIn {
    from {
        opacity: 0;
        transform: translateY(-30px) scale(0.95);
    }
    to {
        opacity: 1;
        transform: translateY(0) scale(1);
    }
}

@keyframes bounce {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes float {
    0%, 100% {
        transform: translateY(0);
    }
    50% {
        transform: translateY(-10px);
    }
}

@keyframes shimmer {
    0% {
        transform: translateX(-100%) rotate(45deg);
    }
    100% {
        transform: translateX(100%) rotate(45deg);
    }
}

@keyframes pulse {
    0%, 100% {
        opacity: 1;
    }
    50% {
        opacity: 0.5;
    }
}

/* ===== DARK MODE ===== */
@media (prefers-color-scheme: dark) {
    :root {
        --primary: #4dabf7;
        --primary-dark: #2d8bcc;
        --primary-light: #1a365d;
        --secondary: #adb5bd;
        --success: #51cf66;
        --success-dark: #37b24d;
        --warning: #ffc107;
        --warning-dark: #f59f00;
        --danger: #ff6b6b;
        --danger-dark: #e03131;
        --light: #343a40;
        --dark: #f8f9fa;
        --gray-100: #212529;
        --gray-200: #343a40;
        --gray-300: #495057;
        --gray-400: #6c757d;
        --gray-500: #adb5bd;
        --gray-600: #ced4da;
        --gray-700: #dee2e6;
        --gray-800: #e9ecef;
        --gray-900: #f8f9fa;
    }
    
    body {
        background-color: #121212;
        color: var(--gray-800);
    }
    
    .search-section,
    .results-section,
    .stats-section,
    .empty-state,
    .loading-indicator,
    .app-footer {
        background-color: var(--gray-100);
        border-color: var(--gray-300);
    }
    
    .search-input {
        background-color: var(--gray-200);
        border-color: var(--gray-400);
        color: var(--gray-800);
    }
    
    .search-input:focus {
        background-color: var(--gray-200);
    }
    
    .clear-btn {
        background: var(--gray-300);
        color: var(--gray-600);
    }
    
    .result-item:hover {
        background-color: var(--gray-200);
    }
    
    .results-header {
        background: linear-gradient(to right, var(--gray-200), var(--gray-300));
        border-color: var(--gray-400);
    }
    
    .meta-item {
        background: var(--gray-200);
        color: var(--gray-600);
    }
    
    .file-name,
    .info-value,
    .empty-title {
        color: var(--gray-800);
    }
    
    .info-label,
    .empty-text {
        color: var(--gray-600);
    }
    
    .notification {
        background: var(--gray-100);
        color: var(--gray-800);
    }
    
    .file-modal {
        background: var(--gray-100);
        color: var(--gray-800);
    }
    
    .file-preview-small {
        background: linear-gradient(135deg, var(--gray-200), var(--gray-300));
        border-color: var(--gray-400);
    }
    
    .stat-item {
        background: linear-gradient(135deg, var(--gray-200), var(--gray-250));
        border-color: var(--gray-300);
    }
    
    .search-hint {
        background: var(--primary-light);
        border-color: var(--primary);
        color: var(--gray-600);
    }
    
    .announcement-section {
        background: linear-gradient(135deg, var(--primary), var(--primary-dark));
    }
    
    .announcement-section.info {
        background: linear-gradient(135deg, var(--info), #0c5460);
    }
    
    .announcement-section.warning {
        background: linear-gradient(135deg, var(--warning), #b37c00);
    }
    
    .announcement-section.danger {
        background: linear-gradient(135deg, var(--danger), #c21838);
    }
    
    .announcement-section.success {
        background: linear-gradient(135deg, var(--success), #248500);
    }
}

/* ===== RESPONSIVE DESIGN ===== */
@media (max-width: 768px) {
    :root {
        --border-radius: 10px;
        --spacing-xl: 1.25rem;
        --spacing-lg: 1rem;
    }
    
    .main-container {
        padding: var(--spacing-lg) 0;
    }
    
    .app-header {
        padding: var(--spacing-md) 0;
    }
    
    .app-title {
        font-size: var(--font-size-lg);
    }
    
    .search-section {
        padding: var(--spacing-lg);
    }
    
    .search-input {
        padding: 14px 16px 14px 46px;
        font-size: var(--font-size-sm);
    }
    
    .results-list {
        max-height: 50vh;
    }
    
    .result-item {
        flex-direction: column;
        gap: var(--spacing-sm);
        padding: var(--spacing-md);
    }
    
    .file-icon {
        align-self: flex-start;
    }
    
    .file-meta {
        gap: var(--spacing-sm);
    }
    
    .meta-item {
        font-size: var(--font-size-xs);
        padding: 4px 8px;
    }
    
    .file-actions {
        flex-direction: column;
    }
    
    .action-btn {
        width: 100%;
        min-width: 0;
        padding: 12px;
    }
    
    .stats-grid {
        grid-template-columns: 1fr;
        gap: var(--spacing-sm);
    }
    
    .modal-body {
        padding: var(--spacing-lg);
    }
    
    .info-row {
        flex-direction: column;
        gap: var(--spacing-xs);
        align-items: flex-start;
    }
    
    .info-label {
        flex: none;
    }
    
    .info-value {
        text-align: left;
        margin-left: 0;
    }
    
    .modal-actions {
        flex-direction: column;
    }
    
    .notification-container {
        top: var(--spacing-md);
        right: var(--spacing-md);
        width: calc(100% - 32px);
    }
    
    .announcement-section {
        padding: var(--spacing-md);
    }
    
    .announcement-header {
        flex-direction: column;
        align-items: flex-start;
        gap: var(--spacing-xs);
    }
    
    .announcement-date {
        align-self: flex-start;
    }
    
    .announcement-actions {
        flex-wrap: wrap;
    }
}

@media (max-width: 480px) {
    :root {
        --spacing-xl: 1rem;
        --spacing-lg: 0.75rem;
    }
    
    .container {
        padding: 0 var(--spacing-sm);
    }
    
    .search-section {
        padding: var(--spacing-md);
    }
    
    .search-input {
        padding: 12px 14px 12px 42px;
    }
    
    .file-actions .btn-info {
        display: none; /* Sembunyikan tombol info di mobile kecil */
    }
    
    .modal-overlay {
        padding: var(--spacing-sm);
    }
    
    .file-modal {
        max-height: 95vh;
    }
    
    .announcement-section {
        padding: var(--spacing-md);
    }
    
    .announcement-title {
        font-size: var(--font-size-sm);
    }
    
    .announcement-text {
        font-size: var(--font-size-xs);
    }
}

/* ===== ACCESSIBILITY ===== */
.sr-only {
    position: absolute;
    width: 1px;
    height: 1px;
    padding: 0;
    margin: -1px;
    overflow: hidden;
    clip: rect(0, 0, 0, 0);
    white-space: nowrap;
    border: 0;
}

/* Focus styles for accessibility */
button:focus,
a:focus,
input:focus,
textarea:focus,
select:focus {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
    box-shadow: 0 0 0 3px rgba(58, 134, 255, 0.3);
}

/* Remove focus for mouse users, keep for keyboard */
.mouse-user :focus {
    outline: none;
    box-shadow: none;
}

.mouse-user :focus-visible {
    outline: 3px solid var(--primary);
    outline-offset: 2px;
    box-shadow: 0 0 0 3px rgba(58, 134, 255, 0.3);
}

/* Touch-friendly targets */
@media (hover: none) and (pointer: coarse) {
    .action-btn,
    .modal-btn,
    .modal-close,
    .clear-btn {
        min-height: 44px;
        min-width: 44px;
    }
    
    .search-input {
        min-height: 44px;
    }
    
    button,
    a.button-like {
        min-height: 44px;
        padding: 12px 16px;
    }
}

/* Print styles */
@media print {
    .app-header,
    .search-section,
    .notification-container,
    .modal-overlay,
    .app-footer,
    .file-actions,
    .announcement-section {
        display: none !important;
    }
    
    .results-section {
        display: block !important;
        box-shadow: none !important;
        border: 1px solid #ccc !important;
    }
    
    .result-item {
        page-break-inside: avoid;
        border-bottom: 1px solid #ccc !important;
    }
    
    body {
        background: white !important;
        color: black !important;
        font-size: 12pt !important;
    }
}

/* Utility Classes */
.text-truncate {
    overflow: hidden;
    text-overflow: ellipsis;
    white-space: nowrap;
}

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

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

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

.d-none {
    display: none !important;
}

.d-flex {
    display: flex !important;
}

.d-block {
    display: block !important;
}

.flex-column {
    flex-direction: column;
}

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

.justify-content-between {
    justify-content: space-between;
}

.justify-content-center {
    justify-content: center;
}

.flex-wrap {
    flex-wrap: wrap;
}

.gap-1 { gap: var(--spacing-xs); }
.gap-2 { gap: var(--spacing-sm); }
.gap-3 { gap: var(--spacing-md); }
.gap-4 { gap: var(--spacing-lg); }
.gap-5 { gap: var(--spacing-xl); }

.mt-1 { margin-top: var(--spacing-xs); }
.mt-2 { margin-top: var(--spacing-sm); }
.mt-3 { margin-top: var(--spacing-md); }
.mt-4 { margin-top: var(--spacing-lg); }
.mt-5 { margin-top: var(--spacing-xl); }

.mb-1 { margin-bottom: var(--spacing-xs); }
.mb-2 { margin-bottom: var(--spacing-sm); }
.mb-3 { margin-bottom: var(--spacing-md); }
.mb-4 { margin-bottom: var(--spacing-lg); }
.mb-5 { margin-bottom: var(--spacing-xl); }

.p-1 { padding: var(--spacing-xs); }
.p-2 { padding: var(--spacing-sm); }
.p-3 { padding: var(--spacing-md); }
.p-4 { padding: var(--spacing-lg); }
.p-5 { padding: var(--spacing-xl); }

.rounded { border-radius: var(--border-radius); }
.rounded-sm { border-radius: var(--border-radius-sm); }
.rounded-lg { border-radius: var(--border-radius-lg); }

.shadow { box-shadow: var(--box-shadow); }
.shadow-sm { box-shadow: var(--box-shadow-sm); }
.shadow-lg { box-shadow: var(--box-shadow-lg); }

/* Loading skeleton */
.skeleton {
    background: linear-gradient(90deg, var(--gray-200) 25%, var(--gray-300) 50%, var(--gray-200) 75%);
    background-size: 200% 100%;
    animation: shimmer 1.5s infinite;
    border-radius: var(--border-radius-sm);
}

.skeleton-text {
    height: 1em;
    margin-bottom: 0.5em;
}

.skeleton-title {
    height: 1.5em;
    width: 70%;
}

.skeleton-button {
    height: 2.5em;
    width: 100px;
}