/* ══════════════════════════════════════════════════════════════
   FileStorage Mobile PWA  |  Bootstrap 5 + Custom Dark Theme
══════════════════════════════════════════════════════════════ */

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

:root {
  --bg:      #0a0a14;
  --bg2:     #0f0f1e;
  --bg3:     #15152a;
  --bg4:     #1c1c33;
  --accent:  #4f8ef7;
  --accent2: #7c3aed;
  --ag:      linear-gradient(135deg, #4f8ef7, #7c3aed);
  --text:    #e8e8f0;
  --text2:   #9090b0;
  --text3:   #5a5a7a;
  --border:  rgba(255,255,255,0.07);
  --border2: rgba(255,255,255,0.12);
  --green:   #22c55e;
  --red:     #ef4444;
  --nav-h:   60px;
  --search-h: 62px;
  --tabs-h:  50px;
  --font-h:  'Syne', sans-serif;
  --font-b:  'DM Sans', sans-serif;
}

* { box-sizing: border-box; margin: 0; padding: 0; -webkit-tap-highlight-color: transparent; }
body { background: var(--bg); color: var(--text); font-family: var(--font-b); min-height: 100vh; overflow-x: hidden; }

.hidden { display: none !important; }

/* ══════════════════════════════════════════════════════════════
   LOGIN / SPLASH
══════════════════════════════════════════════════════════════ */
#loginView {
  min-height: 100vh;
  display: flex; align-items: center; justify-content: center;
  position: relative; overflow: hidden; padding: 20px;
}

.splash-bg { position: absolute; inset: 0; pointer-events: none; }
.splash-orb { position: absolute; border-radius: 50%; filter: blur(90px); opacity: 0.18; }
.orb1 { width: 420px; height: 420px; background: var(--accent); top: -120px; left: -120px; }
.orb2 { width: 360px; height: 360px; background: var(--accent2); bottom: -80px; right: -80px; }
.orb3 { width: 280px; height: 280px; background: #06b6d4; top: 45%; left: 45%; transform: translate(-50%,-50%); }

.login-wrap {
  position: relative; z-index: 1; width: 100%; max-width: 420px;
  text-align: center; animation: fadeUp 0.5s ease;
}
@keyframes fadeUp {
  from { opacity: 0; transform: translateY(28px); }
  to   { opacity: 1; transform: translateY(0); }
}

.brand-logo { display: flex; justify-content: center; margin-bottom: 16px; }
.brand-name {
  font-family: var(--font-h); font-size: 2.2rem; font-weight: 800;
  background: var(--ag); -webkit-background-clip: text; -webkit-text-fill-color: transparent;
  margin-bottom: 6px;
}
.brand-sub { color: var(--text2); font-size: 0.9rem; margin-bottom: 36px; }

.login-box {
  background: var(--bg2); border: 1px solid var(--border2);
  border-radius: 20px; padding: 28px 24px;
  box-shadow: 0 24px 60px rgba(0,0,0,0.5);
}
.form-label-custom { display: block; font-size: 0.78rem; font-weight: 600; color: var(--text2); margin-bottom: 6px; text-align: left; }
.form-control-custom {
  background: var(--bg3) !important; border: 1px solid var(--border2) !important;
  color: var(--text) !important; border-radius: 10px !important;
  padding: 12px 14px; font-size: 0.95rem;
}
.form-control-custom:focus { border-color: var(--accent) !important; box-shadow: 0 0 0 3px rgba(79,142,247,0.15) !important; }
.form-control-custom::placeholder { color: var(--text3) !important; }

.login-err { color: var(--red); font-size: 0.82rem; margin-bottom: 8px; min-height: 18px; }

.btn-gradient {
  padding: 13px 24px; border-radius: 10px;
  background: var(--ag); border: none;
  color: #fff; font-family: var(--font-h); font-size: 1rem; font-weight: 700;
  cursor: pointer; transition: opacity 0.2s, transform 0.15s;
}
.btn-gradient:hover { opacity: 0.9; transform: translateY(-1px); }
.btn-gradient:active { transform: scale(0.98); }

.pwa-banner {
  margin-top: 20px; background: var(--bg3); border: 1px solid var(--border2);
  border-radius: 12px; padding: 12px 16px;
  display: flex; align-items: center; gap: 10px; font-size: 0.83rem; color: var(--text2);
}
.btn-pwa-install {
  margin-left: auto; padding: 5px 12px; border-radius: 8px;
  background: var(--ag); border: none; color: #fff;
  font-size: 0.78rem; font-weight: 700; cursor: pointer;
}

/* ══════════════════════════════════════════════════════════════
   APP SHELL
══════════════════════════════════════════════════════════════ */
#appView { min-height: 100vh; display: flex; flex-direction: column; }

/* TOP NAV */
.top-nav {
  height: var(--nav-h); min-height: var(--nav-h);
  background: var(--bg2); border-bottom: 1px solid var(--border);
  display: flex; align-items: center; justify-content: space-between;
  padding: 0 16px; position: sticky; top: 0; z-index: 100;
  padding-top: env(safe-area-inset-top);
}
.nav-left { display: flex; align-items: center; gap: 8px; }
.nav-brand { font-family: var(--font-h); font-weight: 700; font-size: 1rem; color: var(--text); }
.nav-right { display: flex; align-items: center; gap: 8px; }
.user-chip {
  font-size: 0.75rem; background: rgba(79,142,247,0.15);
  color: var(--accent); padding: 4px 10px; border-radius: 20px; font-weight: 600;
}
.btn-nav-logout {
  background: transparent; border: 1px solid var(--border2);
  color: var(--text2); padding: 5px 11px; border-radius: 8px;
  font-size: 0.75rem; cursor: pointer;
}

/* SEARCH */
.search-wrap { padding: 10px 16px; background: var(--bg2); border-bottom: 1px solid var(--border); }
.search-inner {
  display: flex; align-items: center; gap: 8px;
  background: var(--bg3); border: 1px solid var(--border2);
  border-radius: 12px; padding: 8px 14px;
}
.search-icon { font-size: 0.9rem; color: var(--text3); }
.search-input {
  flex: 1; background: transparent; border: none; outline: none;
  color: var(--text); font-size: 0.9rem; font-family: var(--font-b);
}
.search-input::placeholder { color: var(--text3); }

/* TABS */
.tabs-wrap {
  display: flex; border-bottom: 1px solid var(--border);
  background: var(--bg2); padding: 0 8px;
  position: sticky; top: var(--nav-h); z-index: 99;
}
.tab-btn {
  flex: 1; padding: 13px 8px; border: none; background: transparent;
  color: var(--text2); font-family: var(--font-b); font-size: 0.88rem; font-weight: 500;
  cursor: pointer; border-bottom: 2px solid transparent;
  transition: color 0.2s, border-color 0.2s;
}
.tab-btn.active { color: var(--accent); border-bottom-color: var(--accent); font-weight: 600; }

/* CONTENT */
.content-area { flex: 1; overflow-y: auto; padding: 16px; }
.tab-content { display: none; }
.tab-content.active { display: block; }

/* ── FOLDERS LIST ─────────────────────────────────────────── */
.folders-list { display: flex; flex-direction: column; gap: 12px; }

.folder-card-m {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 14px; overflow: hidden;
  transition: border-color 0.2s;
}
.folder-card-m.open { border-color: var(--accent); }

.folder-header-m {
  display: flex; align-items: center; gap: 12px;
  padding: 14px 16px; cursor: pointer;
}
.folder-emoji-m { font-size: 1.8rem; flex-shrink: 0; }
.folder-info-m { flex: 1; }
.folder-info-m h3 { font-family: var(--font-h); font-size: 0.95rem; font-weight: 700; color: var(--text); }
.folder-info-m p { font-size: 0.75rem; color: var(--text2); margin-top: 2px; }
.folder-count { font-size: 0.72rem; color: var(--text3); background: var(--bg3); padding: 2px 8px; border-radius: 20px; }
.folder-arrow { color: var(--text3); font-size: 0.8rem; transition: transform 0.25s; }
.folder-card-m.open .folder-arrow { transform: rotate(90deg); }

.folder-files-m {
  display: none; padding: 0 16px 16px; gap: 10px;
  display: grid; grid-template-columns: repeat(auto-fill, minmax(120px, 1fr));
  border-top: 1px solid var(--border);
  padding-top: 12px;
}
.folder-card-m:not(.open) .folder-files-m { display: none; }
.folder-card-m.open .folder-files-m {
  display: grid;
  animation: fadeIn 0.2s ease;
}
@keyframes fadeIn { from { opacity: 0; } to { opacity: 1; } }

.file-card-m {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 10px; overflow: hidden; cursor: pointer;
  transition: border-color 0.2s, transform 0.15s;
  text-decoration: none;
}
.file-card-m:hover, .file-card-m:active { border-color: var(--accent); transform: scale(0.97); }
.file-card-m-img {
  width: 100%; aspect-ratio: 4/5.82; object-fit: cover;
  background: var(--bg4);
  display: flex; align-items: center; justify-content: center;
  font-size: 2.4rem;
  overflow: hidden;
}
.file-card-m-img img { width: 100%; height: 100%; object-fit: cover; }
.file-card-m-body { padding: 7px 8px; }
.file-card-m-name {
  font-size: 0.72rem; color: var(--text2);
  white-space: nowrap; overflow: hidden; text-overflow: ellipsis;
  font-weight: 500;
}
.file-card-m-size { font-size: 0.65rem; color: var(--text3); margin-top: 2px; }

/* Loading */
.loading-files {
  grid-column: 1 / -1; text-align: center;
  padding: 20px; color: var(--text3); font-size: 0.82rem;
}
.spinner {
  display: inline-block; width: 18px; height: 18px;
  border: 2px solid var(--border2); border-top-color: var(--accent);
  border-radius: 50%; animation: spin 0.8s linear infinite;
  margin-right: 8px; vertical-align: middle;
}
@keyframes spin { to { transform: rotate(360deg); } }

/* ── EXTERNAL GRID ────────────────────────────────────────── */
.ext-grid {
  display: grid; grid-template-columns: repeat(auto-fill, minmax(160px, 1fr)); gap: 14px;
}
.ext-card-m {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 14px; overflow: hidden; cursor: pointer;
  transition: border-color 0.2s, transform 0.15s;
  text-decoration: none; display: block;
}
.ext-card-m:active { transform: scale(0.97); border-color: var(--accent); }
.ext-card-m-img {
  width: 100%; aspect-ratio: 4/5.82; object-fit: cover;
  background: var(--bg3);
  display: flex; align-items: center; justify-content: center;
  font-size: 2.4rem;
  overflow: hidden;
}
.ext-card-m-img img { width: 100%; height: 100%; object-fit: cover; }
.ext-card-m-body { padding: 10px 12px; }
.ext-card-m-name { font-family: var(--font-h); font-size: 0.82rem; font-weight: 700; color: var(--text); margin-bottom: 3px; }
.ext-card-m-desc { font-size: 0.72rem; color: var(--text2); white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }

/* ── MODAL FILE DETAIL ───────────────────────────────────── */
.file-modal-wrap {
  position: fixed; inset: 0; z-index: 700;
  background: rgba(0,0,0,0.75); backdrop-filter: blur(6px);
  display: flex; align-items: center; justify-content: center;
  padding: 20px;
  animation: fmFadeIn 0.22s ease;
}
.file-modal-wrap.hidden { display: none !important; }
@keyframes fmFadeIn {
  from { opacity: 0; }
  to   { opacity: 1; }
}
.file-modal-box {
  background: var(--bg2); border: 1px solid var(--border2);
  border-radius: 20px; width: 100%; max-width: 480px;
  overflow: hidden;
  animation: fmPopIn 0.25s cubic-bezier(0.34,1.3,0.64,1);
}
@keyframes fmPopIn {
  from { transform: scale(0.90); opacity: 0; }
  to   { transform: scale(1);    opacity: 1; }
}
.file-modal-header {
  display: flex; align-items: flex-start; gap: 10px;
  padding: 16px 20px 14px;
  border-bottom: 1px solid var(--border);
}
.file-modal-title {
  font-family: var(--font-h); font-weight: 700; font-size: 0.92rem;
  color: var(--text); flex: 1; line-height: 1.35; word-break: break-word;
}
.file-modal-close {
  background: var(--bg3); border: none; color: var(--text2);
  width: 28px; height: 28px; min-width: 28px; border-radius: 50%;
  cursor: pointer; font-size: 0.8rem; flex-shrink: 0;
}
.file-modal-close:hover { background: rgba(239,68,68,0.2); color: var(--red); }
.file-modal-body { padding: 18px 20px 20px; }

/* Immagine centrata nel modal */
.file-modal-img {
  width: 100%; display: flex; justify-content: center;
  margin-bottom: 14px;
}
.file-modal-img img {
  width: 100%; max-height: 60vh;
  border-radius: 12px; object-fit: contain;
  box-shadow: 0 8px 32px rgba(0,0,0,0.4);
}

.btn-download {
  display: flex; align-items: center; justify-content: center; gap: 8px;
  width: 100%; padding: 13px; border-radius: 12px;
  background: var(--ag); border: none; color: #fff;
  font-family: var(--font-h); font-size: 0.95rem; font-weight: 700;
  cursor: pointer; text-decoration: none; transition: opacity 0.2s;
}
.btn-download:hover { opacity: 0.88; color: #fff; }

/* ── EMPTY STATE ────────────────────────────────────────────── */
.empty-state {
  text-align: center; padding: 48px 24px; color: var(--text3);
}
.empty-state .empty-icon { font-size: 3rem; margin-bottom: 12px; }
.empty-state p { font-size: 0.85rem; }

/* ── SCROLLBAR ────────────────────────────────────────────── */
::-webkit-scrollbar { width: 4px; }
::-webkit-scrollbar-thumb { background: var(--bg4); border-radius: 2px; }

/* ══════════════════════════════════════════════════════════════
   GRIGLIA CARTELLE
══════════════════════════════════════════════════════════════ */
.folders-grid {
  display: grid;
  grid-template-columns: repeat(12, 1fr);
  gap: 10px;
}
@media (max-width: 1100px) { .folders-grid { grid-template-columns: repeat(8, 1fr); } }
@media (max-width: 700px)  { .folders-grid { grid-template-columns: repeat(5, 1fr); gap: 8px; } }
@media (max-width: 480px)  { .folders-grid { grid-template-columns: repeat(4, 1fr); gap: 6px; } }
@media (max-width: 360px)  { .folders-grid { grid-template-columns: repeat(3, 1fr); } }

.folder-tile {
  background: var(--bg2); border: 1px solid var(--border);
  border-radius: 12px; padding: 20px 6px 18px;
  text-align: center; cursor: pointer;
  transition: border-color 0.15s, background 0.15s, transform 0.12s;
  display: flex; flex-direction: column; align-items: center; gap: 6px;
  user-select: none; min-height: 117px;
}
.folder-tile:hover  { border-color: var(--accent); background: var(--bg3); }
.folder-tile:active { transform: scale(0.93); }
.folder-tile-emoji { font-size: 2.2rem; line-height: 1; }
.folder-tile-name  {
  font-family: var(--font-h); font-size: 0.65rem; font-weight: 700;
  color: var(--text); line-height: 1.2;
  display: -webkit-box; -webkit-line-clamp: 2;
  -webkit-box-orient: vertical; overflow: hidden;
  word-break: break-word; width: 100%;
}

/* ══════════════════════════════════════════════════════════════
   MODAL CARTELLA
══════════════════════════════════════════════════════════════ */
.folder-modal-wrap {
  position: fixed; inset: 0; z-index: 600;
  display: flex; align-items: center; justify-content: center;
  padding: 16px;
  opacity: 0;
  transition: opacity 0.2s ease;
}
.folder-modal-wrap.open { opacity: 1; }

.folder-modal-backdrop {
  position: absolute; inset: 0;
  background: rgba(0,0,0,0.75);
  backdrop-filter: blur(4px);
}
.folder-modal-box {
  position: relative; z-index: 1;
  background: var(--bg2); border: 1px solid var(--border2);
  border-radius: 18px; width: 100%; max-width: 900px;
  max-height: 85vh; display: flex; flex-direction: column;
  box-shadow: 0 24px 60px rgba(0,0,0,0.6);
  transform: scale(0.94) translateY(16px);
  transition: transform 0.25s cubic-bezier(0.34,1.4,0.64,1);
}
.folder-modal-wrap.open .folder-modal-box { transform: scale(1) translateY(0); }

.folder-modal-header {
  display: flex; align-items: center; justify-content: space-between;
  padding: 16px 20px; border-bottom: 1px solid var(--border); flex-shrink: 0;
}
.folder-modal-title { font-family: var(--font-h); font-size: 1.05rem; font-weight: 800; color: var(--text); }
.folder-modal-desc  { font-size: 0.74rem; color: var(--text2); margin-top: 2px; }
.folder-modal-close {
  background: var(--bg3); border: none; color: var(--text2);
  width: 32px; height: 32px; border-radius: 50%; cursor: pointer; font-size: 0.9rem;
  flex-shrink: 0; margin-left: 12px;
}
.folder-modal-close:hover { background: rgba(239,68,68,0.2); color: var(--red); }
.folder-modal-body { flex: 1; overflow-y: auto; padding: 16px 20px; }

.modal-files-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(130px, 1fr));
  gap: 12px;
}
@media (max-width: 480px) { .modal-files-grid { grid-template-columns: repeat(auto-fill, minmax(100px,1fr)); gap:8px; } }

.modal-file-card {
  background: var(--bg3); border: 1px solid var(--border);
  border-radius: 10px; overflow: hidden; cursor: pointer;
  transition: border-color 0.15s, transform 0.12s;
}
.modal-file-card:hover  { border-color: var(--accent); }
.modal-file-card:active { transform: scale(0.96); }
.modal-file-img {
  width: 100%; aspect-ratio: 4/5.82; background: var(--bg4);
  display: flex; align-items: center; justify-content: center; font-size: 2.4rem; overflow: hidden;
}
.modal-file-img img { width: 100%; height: 100%; object-fit: cover; }
.modal-file-img img.icon-svg { object-fit: fill; }
.modal-file-body { padding: 7px 8px; }
.modal-file-name { font-size: 0.72rem; color: var(--text2); font-weight: 500; white-space: nowrap; overflow: hidden; text-overflow: ellipsis; }
.modal-file-size { font-size: 0.62rem; color: var(--text3); margin-top: 2px; }

/* ── BANNER INSTALLAZIONE DENTRO APP ──────────────────────── */
.pwa-app-banner {
  background: rgba(15,15,30,0.98);
  border-bottom: 1px solid var(--accent);
  padding: 12px 16px;
  display: flex; align-items: center; gap: 10px;
  animation: slideDown 0.3s ease;
}
.pwa-app-icon { font-size: 1.4rem; flex-shrink: 0; }
.pwa-app-text { flex: 1; }
.pwa-app-text strong { display: block; font-size: 0.85rem; color: var(--text); font-weight: 700; }
.pwa-app-text span { font-size: 0.72rem; color: var(--text2); }

/* ── UPLOAD / I MIEI FILE ────────────────────────────────────── */
.folder-tile-personal {
  border: 2px solid #7f1d1d !important;
  background: rgba(220,38,38,0.12);
}
.folder-tile-personal:hover { border-color: #ef4444 !important; background: rgba(220,38,38,0.2); }

/* Cartelle PC — verde */
.folder-tile-pc {
  border-color: rgba(34,197,94,0.35) !important;
  background: rgba(34,197,94,0.07);
}
.folder-tile-pc:hover { border-color: #22c55e !important; background: rgba(34,197,94,0.15); }

/* Cartelle esterne — arancio */
.folder-tile-ext {
  border-color: rgba(249,115,22,0.35) !important;
  background: rgba(249,115,22,0.07);
}
.folder-tile-ext:hover { border-color: #f97316 !important; background: rgba(249,115,22,0.15); }

/* Cartelle 1Fichier — giallo */
.folder-tile-onef {
  border-color: rgba(234,179,8,0.35) !important;
  background: rgba(234,179,8,0.07);
}
.folder-tile-onef:hover { border-color: #eab308 !important; background: rgba(234,179,8,0.15); }

.upload-drop-zone {
  border: 2px dashed var(--border2);
  border-radius: 14px;
  padding: 28px 16px;
  text-align: center;
  cursor: pointer;
  transition: border-color 0.2s, background 0.2s;
  margin-top: 8px;
}
.upload-drop-zone:hover, .upload-drop-zone.drag-over {
  border-color: var(--accent);
  background: rgba(79,142,247,0.05);
}

.upload-progress-bar {
  width: 100%; height: 6px;
  background: var(--bg4); border-radius: 3px; overflow: hidden;
}
.upload-progress-fill {
  height: 100%; width: 0;
  background: linear-gradient(135deg,#4f8ef7,#7c3aed);
  border-radius: 3px; transition: width 0.3s ease;
}

/* ══════════════════════════════════════════════════════════════
   ADMIN PANEL RESPONSIVE
══════════════════════════════════════════════════════════════ */

/* Tabelle scrollabili orizzontalmente su mobile */
.acp-tbl-scroll {
  overflow-x: auto;
  -webkit-overflow-scrolling: touch;
}
.acp-tbl-scroll table {
  min-width: 480px;
}

/* Card utenti responsive */
.acp-user-card {
  background: #1a1a2e;
  border: 1px solid rgba(255,255,255,0.08);
  border-radius: 12px;
  padding: 14px 16px;
  margin-bottom: 10px;
}
.acp-user-card:last-child { margin-bottom: 0; }

/* Modal admin: padding ridotto su mobile */
@media (max-width: 600px) {
  #acpMUser > div,
  #acpMFolder > div,
  #acpMExtF > div,
  #acpMExtL > div,
  #acpMOnefF > div,
  #acpMOnefFile > div,
  #acpMOnefScan > div {
    max-height: 95vh !important;
    border-radius: 14px !important;
    margin: 0 !important;
  }
  #acpContent {
    padding: 12px !important;
  }
}