:root{--bg:#0c111b;--bg2:#111827;--panel:#151d2b;--surface:#1a2436;--border:#243148;--text:#eef2ff;--muted:#9fb0ce;--accent:#59d5ff;--success:#22c55e;--danger:#ef4444;--radius:16px}
*{box-sizing:border-box}
body{margin:0;font-family:Inter,Arial,sans-serif;background:linear-gradient(180deg,#09101b,#0d1420);color:var(--text)}
a{color:inherit}
input,select,textarea,button{font:inherit}
input,select,textarea{width:100%;padding:12px 14px;background:var(--surface);border:1px solid var(--border);border-radius:12px;color:var(--text)}
textarea{resize:vertical}
button{border:0;cursor:pointer}
.app-shell{display:grid;grid-template-columns:260px 1fr;min-height:100vh}
.sidebar{background:#0a0f18;border-right:1px solid var(--border);padding:22px;display:flex;flex-direction:column}
.brand{display:flex;gap:12px;align-items:center}
.brand-icon{width:48px;height:48px;display:grid;place-items:center;background:linear-gradient(135deg,#36d0ff,#2563eb);border-radius:14px;font-size:22px}
.brand-name{font-weight:800;font-size:1.15rem}
.brand-sub{color:var(--muted);font-size:.82rem}
.nav{display:flex;flex-direction:column;gap:6px;margin:28px 0}
.nav a{text-decoration:none;padding:12px 14px;border-radius:12px;color:#d7e5ff}
.nav a.active,.nav a:hover{background:var(--surface)}
.side-foot{margin-top:auto;display:flex;flex-direction:column;gap:10px}
.userbox{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:12px;display:flex;flex-direction:column;gap:4px}
.userbox span{font-size:.82rem;color:var(--muted)}
.logout{text-decoration:none;background:#1f2937;padding:11px 14px;border-radius:12px;text-align:center}
.main{padding:28px}
.topbar h1{margin:0 0 6px;font-size:2rem}
.topbar p{margin:0 0 20px;color:var(--muted)}
.flash{padding:14px 16px;border-radius:12px;margin-bottom:18px;background:#11243b;border:1px solid #244368}
.flash.success{background:#10281d;border-color:#1f5935}
.flash.error{background:#32131b;border-color:#6b2233}
.cards-4{display:grid;grid-template-columns:repeat(4,1fr);gap:16px;margin-bottom:18px}
.card{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);padding:18px}
.stat{display:flex;flex-direction:column;gap:8px}
.stat span{font-size:1.5rem}
.stat strong{font-size:1.7rem}
.stat small{color:var(--muted)}
.toolbar{display:flex;gap:10px;flex-wrap:wrap;margin-bottom:18px}
.filterbar input{flex:1;min-width:220px}
.panel{background:var(--panel);border:1px solid var(--border);border-radius:var(--radius);overflow:hidden;margin-bottom:18px}
.panel.narrow{max-width:760px}
.panel-head{padding:18px 18px 0}
.panel-head h3{margin:0 0 12px}
.pad{padding:18px}
.empty{padding:22px;color:var(--muted)}
.empty.small{padding:10px 0}
.btn{display:inline-flex;align-items:center;justify-content:center;text-decoration:none;padding:11px 14px;border-radius:12px;background:#23324a;color:var(--text);border:1px solid #30415d}
.btn.primary{background:linear-gradient(135deg,#36d0ff,#2563eb);border:0;color:white}
.grid-media{display:grid;grid-template-columns:repeat(auto-fill,minmax(230px,1fr));gap:16px;padding:18px}
.media-card{text-decoration:none;background:var(--surface);border:1px solid var(--border);border-radius:16px;overflow:hidden}
.thumb{height:180px;background:#09111c}
.thumb img,.thumb video{width:100%;height:100%;object-fit:cover;display:block}
.media-body{padding:12px;display:flex;flex-direction:column;gap:4px}
.media-body span,.media-body small{color:var(--muted)}
.split{display:grid;grid-template-columns:380px 1fr;gap:18px}
.form-stack{display:flex;flex-direction:column;gap:14px}
.folder-list{display:grid;gap:12px;padding:18px}
.folder-item{text-decoration:none;background:var(--surface);border:1px solid var(--border);padding:14px;border-radius:14px;display:flex;flex-direction:column;gap:4px}
.folder-item span,.folder-item small{color:var(--muted)}
.detail-grid{display:grid;grid-template-columns:minmax(0,1.5fr) 400px;gap:18px}
.viewer .viewer-box{padding:12px;display:flex;align-items:center;justify-content:center;min-height:460px;background:#09111c}
.viewer img,.viewer video{max-width:100%;max-height:78vh;border-radius:12px}
.stack{display:flex;flex-direction:column;gap:18px}
.meta{display:flex;flex-direction:column;gap:10px}
.desc{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:12px;color:#d8e4f8}
.comments{display:flex;flex-direction:column;gap:10px;margin-top:12px}
.comment{background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:12px}
.comment small{display:block;color:var(--muted);margin-top:2px}
.comment p{margin:8px 0 0;color:#d9e3f4}
.backup-list{display:grid;gap:10px;padding:18px}
.backup-item{display:flex;justify-content:space-between;align-items:center;gap:10px;background:var(--surface);border:1px solid var(--border);border-radius:12px;padding:12px 14px}
.login-body{min-height:100vh;display:grid;place-items:center;padding:22px}
.login-card{width:min(440px,100%);background:var(--panel);border:1px solid var(--border);border-radius:22px;padding:24px}
.login-brand{margin-bottom:14px}
.login-copy{color:var(--muted);line-height:1.5}
.narrow{max-width:760px}

/* Painel de armazenamento */
.storage-panel{margin-bottom:18px}
.storage-box{padding:18px}
.storage-main{display:flex;align-items:flex-end;justify-content:space-between;gap:16px;margin-bottom:14px}
.storage-main div{display:flex;flex-direction:column;gap:4px}
.storage-main small{color:var(--muted);font-size:.85rem}
.storage-main strong{font-size:2rem;line-height:1}
.storage-main span{color:var(--muted)}
.storage-percent{font-size:1.6rem;font-weight:800;background:var(--surface);border:1px solid var(--border);border-radius:16px;padding:14px 16px;min-width:110px;text-align:center}
.storage-bar{height:15px;background:#0b1220;border:1px solid var(--border);border-radius:999px;overflow:hidden}
.storage-fill{height:100%;background:linear-gradient(135deg,#36d0ff,#2563eb);border-radius:999px;transition:width .25s ease}
.storage-grid{display:grid;grid-template-columns:repeat(4,1fr);gap:12px;margin-top:16px}
.storage-grid div{background:var(--surface);border:1px solid var(--border);border-radius:14px;padding:14px}
.storage-grid small{display:block;color:var(--muted);margin-bottom:6px}
.storage-grid strong{font-size:1.1rem}

@media (max-width:1100px){
  .cards-4,.detail-grid,.split{grid-template-columns:1fr}
  .app-shell{grid-template-columns:1fr}
  .sidebar{display:none}
  .storage-grid{grid-template-columns:1fr 1fr}
}

@media (max-width:620px){
  .storage-main{align-items:stretch;flex-direction:column}
  .storage-percent{text-align:left}
  .storage-grid{grid-template-columns:1fr}
}