*, *::before, *::after { margin: 0; padding: 0; box-sizing: border-box; }
:root {
    --bg-primary: #0a0a14; --bg-secondary: #141623; --bg-glass: rgba(20,22,35,0.7);
    --border-glass: rgba(120,119,198,0.2); --text-primary: #fff; --text-secondary: rgba(255,255,255,0.7);
    --text-muted: rgba(255,255,255,0.4); --accent-cyan: #00f5ff; --accent-purple: #bd00ff;
    --accent-pink: #ff006e; --success: #2ed573; --warning: #ffa502; --danger: #ff4757;
    --gold: #ffd700; --gradient-main: linear-gradient(135deg, #00f5ff 0%, #bd00ff 100%);
    --gradient-bg: radial-gradient(ellipse at top, #1a1a3e 0%, #0a0a14 50%, #000 100%);
    --shadow-card: 0 20px 60px rgba(0,0,0,0.5);
}
html { scroll-behavior: smooth; }
body { font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', 'Inter', Roboto, sans-serif; background: var(--gradient-bg); color: var(--text-primary); min-height: 100vh; overflow-x: hidden; line-height: 1.6; position: relative; }
body::before, body::after { content: ''; position: fixed; border-radius: 50%; filter: blur(100px); opacity: 0.3; z-index: 0; pointer-events: none; animation: float 20s ease-in-out infinite; }
body::before { width: 500px; height: 500px; background: var(--accent-cyan); top: -200px; left: -200px; }
body::after { width: 600px; height: 600px; background: var(--accent-purple); bottom: -300px; right: -200px; animation-delay: -10s; }
@keyframes float { 0%, 100% { transform: translate(0, 0) scale(1); } 33% { transform: translate(50px, -50px) scale(1.1); } 66% { transform: translate(-30px, 30px) scale(0.95); } }

/* ADS */
.ads-header-slot, .ads-footer-slot { max-width: 1200px; margin: 15px auto; padding: 0 20px; display: flex; gap: 15px; justify-content: center; flex-wrap: wrap; position: relative; z-index: 1; }
.ad-banner-long { display: block; max-width: 728px; width: 100%; border-radius: 12px; overflow: hidden; transition: all 0.3s; border: 1px solid rgba(255,255,255,0.08); }
.ad-banner-long:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(0,0,0,0.3); }
.ad-banner-long img { width: 100%; height: auto; display: block; }
.ad-banner-square { display: block; width: 200px; height: 200px; border-radius: 12px; overflow: hidden; transition: all 0.3s; border: 1px solid rgba(255,255,255,0.08); }
.ad-banner-square:hover { transform: translateY(-2px); box-shadow: 0 10px 30px rgba(0,0,0,0.3); }
.ad-banner-square img { width: 100%; height: 100%; object-fit: cover; }
.ads-slot { display: flex; gap: 10px; justify-content: center; flex-wrap: wrap; }

.app-container { max-width: 1200px; margin: 0 auto; padding: 20px; position: relative; z-index: 1; }
.app-header { background: var(--bg-glass); backdrop-filter: blur(20px); border: 1px solid var(--border-glass); border-radius: 24px; padding: 30px; margin-bottom: 25px; display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 20px; box-shadow: var(--shadow-card); animation: slideDown 0.6s cubic-bezier(0.16,1,0.3,1); }
@keyframes slideDown { from { opacity: 0; transform: translateY(-30px); } to { opacity: 1; transform: translateY(0); } }
.brand { display: flex; align-items: center; gap: 15px; }
.brand-icon { width: 56px; height: 56px; background: var(--gradient-main); border-radius: 16px; display: flex; align-items: center; justify-content: center; font-size: 1.6em; color: #fff; box-shadow: 0 10px 30px rgba(0,245,255,0.3); position: relative; overflow: hidden; }
.brand-icon::before { content: ''; position: absolute; inset: 0; background: linear-gradient(45deg, transparent 30%, rgba(255,255,255,0.3) 50%, transparent 70%); animation: shine 3s infinite; }
@keyframes shine { 0% { transform: translateX(-100%); } 100% { transform: translateX(100%); } }
.brand-text h1 { font-size: 1.6em; font-weight: 800; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }
.brand-text p { font-size: 0.85em; color: var(--text-muted); margin-top: 2px; }
.header-stats { display: flex; gap: 15px; flex-wrap: wrap; }
.stat-pill { display: flex; align-items: center; gap: 10px; padding: 10px 16px; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08); border-radius: 12px; transition: all 0.3s; }
.stat-pill:hover { background: rgba(0,245,255,0.05); border-color: rgba(0,245,255,0.3); transform: translateY(-2px); }
.stat-pill.premium-pill { background: linear-gradient(135deg, rgba(255,215,0,0.1), rgba(255,140,0,0.1)); border-color: rgba(255,215,0,0.3); }
.stat-pill.premium-pill i { color: var(--gold); }
.stat-pill i { color: var(--accent-cyan); font-size: 1.1em; }
.stat-pill .stat-info { display: flex; flex-direction: column; }
.stat-pill .stat-num { font-weight: 700; font-size: 1em; color: var(--text-primary); line-height: 1; }
.stat-pill .stat-lbl { font-size: 0.7em; color: var(--text-muted); text-transform: uppercase; letter-spacing: 0.5px; }

.tabs-nav { display: flex; gap: 8px; background: var(--bg-glass); backdrop-filter: blur(20px); border: 1px solid var(--border-glass); border-radius: 16px; padding: 6px; margin-bottom: 25px; overflow-x: auto; }
.tab-btn { flex: 1; min-width: 120px; padding: 12px 20px; background: transparent; border: none; color: var(--text-secondary); font-size: 0.95em; font-weight: 500; border-radius: 12px; cursor: pointer; transition: all 0.3s; display: flex; align-items: center; justify-content: center; gap: 8px; white-space: nowrap; }
.tab-btn:hover { color: var(--text-primary); background: rgba(255,255,255,0.03); }
.tab-btn.active { background: var(--gradient-main); color: #fff; box-shadow: 0 5px 20px rgba(0,245,255,0.3); }
.tab-content { display: none; animation: fadeIn 0.4s ease; }
.tab-content.active { display: block; }
@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }

.upload-card, .files-card { background: var(--bg-glass); backdrop-filter: blur(20px); border: 1px solid var(--border-glass); border-radius: 24px; padding: 35px; box-shadow: var(--shadow-card); }
.upload-card h2, .files-card h2 { font-size: 1.4em; margin-bottom: 25px; display: flex; align-items: center; gap: 10px; color: #fff; }
.upload-card h2 i, .files-card h2 i { background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; }

.premium-info-banner { background: linear-gradient(135deg, rgba(255,215,0,0.1), rgba(255,140,0,0.1)); border: 1px solid rgba(255,215,0,0.3); border-radius: 12px; padding: 12px 16px; margin-bottom: 20px; color: var(--gold); font-size: 0.9em; display: flex; align-items: center; gap: 10px; }
.premium-info-banner i { font-size: 1.2em; }

.form-group { margin-bottom: 20px; }
.form-label { display: block; font-size: 0.85em; font-weight: 500; color: var(--text-secondary); margin-bottom: 8px; letter-spacing: 0.5px; }

.dropzone { position: relative; border: 2px dashed rgba(0,245,255,0.3); border-radius: 16px; padding: 40px 20px; text-align: center; cursor: pointer; transition: all 0.3s; background: rgba(0,245,255,0.02); }
.dropzone:hover, .dropzone.dragover { border-color: var(--accent-cyan); background: rgba(0,245,255,0.05); transform: scale(1.01); }
.dropzone input[type="file"] { position: absolute; inset: 0; opacity: 0; cursor: pointer; }
.dropzone-icon { font-size: 3em; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; margin-bottom: 12px; }
.dropzone-text { color: var(--text-secondary); font-size: 0.95em; margin-bottom: 6px; }
.dropzone-hint { color: var(--text-muted); font-size: 0.8em; }

.file-preview { display: none; background: rgba(0,245,255,0.05); border: 1px solid rgba(0,245,255,0.2); border-radius: 12px; padding: 15px; margin-top: 12px; align-items: center; gap: 12px; }
.file-preview.show { display: flex; }
.file-preview i { font-size: 1.8em; color: var(--accent-cyan); }
.file-preview-info { flex: 1; min-width: 0; }
.file-preview-name { font-weight: 600; color: var(--text-primary); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.file-preview-size { font-size: 0.8em; color: var(--text-muted); }
.file-preview-remove { background: rgba(255,71,87,0.1); border: 1px solid rgba(255,71,87,0.3); color: var(--danger); width: 32px; height: 32px; border-radius: 8px; cursor: pointer; }

.url-input-group { display: flex; align-items: stretch; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.1); border-radius: 12px; overflow: hidden; }
.url-input-group:focus-within { border-color: var(--accent-cyan); box-shadow: 0 0 0 3px rgba(0,245,255,0.1); }
.url-prefix { padding: 12px 14px; background: rgba(0,0,0,0.3); color: var(--text-muted); font-size: 0.85em; display: flex; align-items: center; border-right: 1px solid rgba(255,255,255,0.08); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; max-width: 50%; }
.url-input-group input { flex: 1; padding: 12px 14px; background: transparent; border: none; color: var(--text-primary); font-size: 0.95em; outline: none; }

.password-toggle-label { display: flex; align-items: center; gap: 10px; cursor: pointer; padding: 12px; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.1); border-radius: 10px; transition: all 0.3s; }
.password-toggle-label:hover { background: rgba(255,255,255,0.05); border-color: rgba(255,255,255,0.2); }
.password-toggle-label input[type="checkbox"] { width: 18px; height: 18px; accent-color: var(--accent-cyan); cursor: pointer; }
.password-toggle-label i { color: var(--accent-cyan); }
.password-toggle-label span { color: var(--text-primary); font-weight: 500; }
.help-text { display: block; margin-top: 6px; font-size: 0.8em; color: var(--text-muted); }

.password-field-group { animation: fadeIn 0.3s; }
.password-input-wrapper { display: flex; align-items: center; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.1); border-radius: 10px; overflow: hidden; }
.password-input-wrapper:focus-within { border-color: var(--accent-cyan); }
.password-input-wrapper input { flex: 1; padding: 12px 14px; background: transparent; border: none; color: var(--text-primary); font-size: 0.95em; outline: none; }
.toggle-password-visibility { padding: 12px; background: transparent; border: none; color: var(--text-muted); cursor: pointer; }

.captcha-box { background: rgba(255,165,2,0.05); border: 1px solid rgba(255,165,2,0.2); border-radius: 12px; padding: 16px; display: flex; align-items: center; gap: 12px; flex-wrap: wrap; }
.captcha-icon { width: 40px; height: 40px; background: rgba(255,165,2,0.15); border-radius: 10px; display: flex; align-items: center; justify-content: center; color: var(--warning); flex-shrink: 0; }
.captcha-question { font-size: 1.2em; font-weight: 700; color: var(--text-primary); font-family: 'Courier New', monospace; letter-spacing: 2px; flex: 1; min-width: 120px; }
.captcha-input { width: 80px; padding: 10px; background: rgba(0,0,0,0.3); border: 1px solid rgba(255,255,255,0.1); border-radius: 8px; color: var(--text-primary); font-size: 1em; text-align: center; outline: none; }
.captcha-refresh { width: 40px; height: 40px; background: rgba(255,255,255,0.05); border: 1px solid rgba(255,255,255,0.1); color: var(--text-secondary); border-radius: 8px; cursor: pointer; transition: all 0.3s; }
.captcha-refresh:hover { background: rgba(0,245,255,0.1); color: var(--accent-cyan); transform: rotate(180deg); }

.btn-primary { width: 100%; padding: 16px; background: var(--gradient-main); border: none; border-radius: 14px; color: #fff; font-size: 1.05em; font-weight: 600; cursor: pointer; transition: all 0.3s; display: flex; align-items: center; justify-content: center; gap: 10px; position: relative; overflow: hidden; box-shadow: 0 10px 30px rgba(0,245,255,0.2); }
.btn-primary:hover:not(:disabled) { transform: translateY(-2px); box-shadow: 0 15px 40px rgba(0,245,255,0.4); }
.btn-primary:disabled { opacity: 0.6; cursor: not-allowed; }

.progress-wrap { display: none; margin-top: 20px; }
.progress-wrap.show { display: block; }
.progress-bar { height: 8px; background: rgba(255,255,255,0.05); border-radius: 10px; overflow: hidden; }
.progress-fill { height: 100%; background: var(--gradient-main); border-radius: 10px; width: 0%; transition: width 0.3s; }
.progress-text { text-align: center; margin-top: 10px; color: var(--text-secondary); font-size: 0.9em; }

.alert { padding: 16px 20px; border-radius: 14px; margin-bottom: 20px; display: flex; align-items: flex-start; gap: 12px; animation: slideIn 0.4s ease; border: 1px solid; }
@keyframes slideIn { from { opacity: 0; transform: translateX(-20px); } to { opacity: 1; transform: translateX(0); } }
.alert.success { background: rgba(46,213,115,0.1); border-color: rgba(46,213,115,0.3); color: var(--success); }
.alert.error { background: rgba(255,71,87,0.1); border-color: rgba(255,71,87,0.3); color: var(--danger); }
.alert-content { flex: 1; }
.alert-title { font-weight: 600; margin-bottom: 8px; }
.link-box { margin-top: 8px; background: rgba(0,0,0,0.3); border-radius: 10px; padding: 10px; display: flex; gap: 8px; align-items: center; }
.link-box input { flex: 1; background: transparent; border: none; color: var(--accent-cyan); font-family: 'Courier New', monospace; font-size: 0.85em; outline: none; min-width: 0; }
.btn-copy { padding: 8px 14px; background: var(--gradient-main); border: none; border-radius: 8px; color: #fff; cursor: pointer; font-size: 0.85em; font-weight: 500; display: flex; align-items: center; gap: 6px; white-space: nowrap; }

.files-toolbar { display: flex; justify-content: space-between; align-items: center; flex-wrap: wrap; gap: 15px; margin-bottom: 20px; }
.filter-group { display: flex; gap: 8px; flex-wrap: wrap; }
.filter-select { padding: 8px 12px; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.1); border-radius: 10px; color: var(--text-primary); font-size: 0.85em; cursor: pointer; outline: none; }
.filter-select option { background: var(--bg-secondary); }

.file-grid { display: grid; grid-template-columns: repeat(auto-fill, minmax(280px, 1fr)); gap: 15px; }
.file-card { background: rgba(255,255,255,0.02); border: 1px solid rgba(255,255,255,0.06); border-radius: 16px; padding: 18px; transition: all 0.3s; position: relative; overflow: hidden; }
.file-card::before { content: ''; position: absolute; top: 0; left: 0; width: 100%; height: 3px; background: var(--gradient-main); opacity: 0; transition: opacity 0.3s; }
.file-card:hover { transform: translateY(-4px); border-color: rgba(0,245,255,0.3); box-shadow: 0 10px 30px rgba(0,0,0,0.3); }
.file-card:hover::before { opacity: 1; }
.file-card-header { display: flex; align-items: flex-start; gap: 12px; margin-bottom: 12px; }
.file-card-icon { width: 44px; height: 44px; border-radius: 12px; background: linear-gradient(135deg, rgba(0,245,255,0.15), rgba(189,0,255,0.15)); display: flex; align-items: center; justify-content: center; color: var(--accent-cyan); font-size: 1.3em; flex-shrink: 0; }
.file-card-title { flex: 1; min-width: 0; }
.file-card-name { font-weight: 600; color: var(--text-primary); font-size: 0.95em; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; margin-bottom: 4px; }
.file-card-meta { display: flex; gap: 10px; font-size: 0.75em; color: var(--text-muted); flex-wrap: wrap; }
.file-card-meta span { display: flex; align-items: center; gap: 4px; }
.file-card-actions { display: flex; gap: 8px; margin-top: 12px; padding-top: 12px; border-top: 1px solid rgba(255,255,255,0.05); }
.btn-action { flex: 1; padding: 8px; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08); color: var(--text-secondary); border-radius: 8px; cursor: pointer; font-size: 0.8em; transition: all 0.2s; display: flex; align-items: center; justify-content: center; gap: 5px; text-decoration: none; }
.btn-action:hover { background: rgba(0,245,255,0.1); border-color: rgba(0,245,255,0.3); color: var(--accent-cyan); }
.btn-action.primary { background: var(--gradient-main); border: none; color: #fff; }

.pagination-wrap { display: flex; justify-content: center; align-items: center; gap: 6px; margin-top: 25px; flex-wrap: wrap; }
.page-btn { min-width: 36px; height: 36px; padding: 0 10px; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.08); color: var(--text-secondary); border-radius: 8px; cursor: pointer; font-size: 0.85em; transition: all 0.2s; display: flex; align-items: center; justify-content: center; }
.page-btn:hover:not(:disabled) { background: rgba(0,245,255,0.1); border-color: rgba(0,245,255,0.3); color: var(--accent-cyan); }
.page-btn.active { background: var(--gradient-main); border: none; color: #fff; }
.page-btn:disabled { opacity: 0.3; cursor: not-allowed; }

.empty-state { text-align: center; padding: 60px 20px; color: var(--text-muted); }
.empty-state i { font-size: 4em; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; opacity: 0.5; margin-bottom: 15px; }
.empty-state p { font-size: 1em; color: var(--text-secondary); }

.app-footer { text-align: center; padding: 30px 20px; color: var(--text-muted); font-size: 0.85em; margin-top: 40px; }

.modal-overlay { position: fixed; inset: 0; background: rgba(0,0,0,0.7); backdrop-filter: blur(8px); display: none; align-items: center; justify-content: center; z-index: 1000; padding: 20px; }
.modal-overlay.show { display: flex; }
.modal { background: var(--bg-secondary); border: 1px solid var(--border-glass); border-radius: 20px; padding: 30px; max-width: 420px; width: 100%; animation: slideUp 0.4s cubic-bezier(0.16,1,0.3,1); }
.modal-title { font-size: 1.3em; font-weight: 700; margin-bottom: 20px; background: var(--gradient-main); -webkit-background-clip: text; -webkit-text-fill-color: transparent; display: flex; align-items: center; gap: 10px; }
.modal-input { width: 100%; padding: 12px 14px; background: rgba(255,255,255,0.03); border: 1px solid rgba(255,255,255,0.1); border-radius: 10px; color: var(--text-primary); font-size: 0.95em; margin-bottom: 12px; outline: none; transition: all 0.3s; }
.modal-input:focus { border-color: var(--accent-cyan); box-shadow: 0 0 0 3px rgba(0,245,255,0.1); }

.toast { position: fixed; bottom: 20px; right: 20px; background: var(--bg-secondary); border: 1px solid var(--border-glass); border-left: 4px solid var(--accent-cyan); border-radius: 12px; padding: 14px 20px; color: var(--text-primary); box-shadow: 0 10px 40px rgba(0,0,0,0.5); z-index: 9999; display: flex; align-items: center; gap: 10px; max-width: 400px; animation: slideInRight 0.4s cubic-bezier(0.16,1,0.3,1); }
@keyframes slideInRight { from { opacity: 0; transform: translateX(100px); } to { opacity: 1; transform: translateX(0); } }
.toast.success { border-left-color: var(--success); }
.toast.error { border-left-color: var(--danger); }
.toast.success i { color: var(--success); }
.toast.error i { color: var(--danger); }

.spinner { width: 18px; height: 18px; border: 2px solid rgba(255,255,255,0.2); border-top-color: #fff; border-radius: 50%; animation: spin 0.8s linear infinite; display: inline-block; }
@keyframes spin { to { transform: rotate(360deg); } }

@media (max-width: 768px) {
    .app-container { padding: 12px; }
    .app-header { padding: 20px; flex-direction: column; align-items: stretch; text-align: center; }
    .brand { justify-content: center; }
    .brand-text h1 { font-size: 1.3em; }
    .header-stats { justify-content: center; }
    .stat-pill { padding: 8px 12px; }
    .tabs-nav { padding: 4px; }
    .tab-btn { padding: 10px 12px; font-size: 0.85em; min-width: 0; }
    .tab-btn span.tab-label { display: none; }
    .upload-card, .files-card { padding: 20px; border-radius: 18px; }
    .upload-card h2, .files-card h2 { font-size: 1.1em; }
    .dropzone { padding: 30px 15px; }
    .dropzone-icon { font-size: 2.2em; }
    .file-grid { grid-template-columns: 1fr; }
    .files-toolbar { flex-direction: column; align-items: stretch; }
    .filter-group { width: 100%; }
    .filter-select { flex: 1; }
    .captcha-box { flex-direction: column; align-items: stretch; }
    .captcha-question { text-align: center; }
    .captcha-input { width: 100%; }
    .link-box { flex-direction: column; }
    .btn-copy { width: 100%; justify-content: center; }
    .toast { left: 20px; right: 20px; bottom: 10px; max-width: none; }
    .ad-banner-long { max-width: 100%; }
    .ad-banner-square { width: 150px; height: 150px; }
}

::-webkit-scrollbar { width: 10px; height: 10px; }
::-webkit-scrollbar-track { background: var(--bg-primary); }
::-webkit-scrollbar-thumb { background: linear-gradient(135deg, #00f5ff, #bd00ff); border-radius: 10px; }