/* MeWeSync web UI — light theme matching m-we.org (mewecontent web/public/css/style.css + nav.css).
   Same palette, radius, shadow and header pattern; light only. (mewemath's design-system is for the native apps.) */
:root{
  --bg:#f9fafb; --surface:#ffffff; --surface-2:#f1f5f9;
  --text:#0f172a; --text-2:#334155; --muted:#475569;
  --primary:#2563eb; --primary-ink:#ffffff; --primary-weak:#e0ecff; --ring:#2563eb;
  --ok:#16a34a; --bad:#dc2626; --warn:#ca8a04;
  --border:#e5e7eb; --radius:12px; --field:#ffffff; --btn2:#f1f5f9; --btn2-ink:#334155; --btn2-line:#cbd5e1; --info-ink:#1d4ed8;
  --shadow:0 1px 2px rgba(0,0,0,.06), 0 4px 12px rgba(0,0,0,.04);
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{background:var(--bg);color:var(--text);
  font:14px/1.5 system-ui,-apple-system,"Segoe UI",Roboto,Ubuntu,Helvetica,Arial,sans-serif}
a{color:var(--primary);text-decoration:none}
a:hover{text-decoration:underline}
:focus-visible{outline:2px solid var(--ring);outline-offset:2px}

/* ---------- Header ---------- */
.app-header{background:var(--surface);color:var(--text);position:sticky;top:0;z-index:50;
  border-bottom:1px solid var(--border);box-shadow:var(--shadow);
  display:flex;align-items:center;justify-content:space-between;gap:14px;padding:8px 16px;min-height:56px}
.app-header__brand{display:inline-flex;align-items:center;gap:10px;font-weight:700;letter-spacing:.2px;color:var(--text)}
.app-header__brand:hover{text-decoration:none}
.app-header__logo{height:36px;width:36px;object-fit:contain;border-radius:8px}
.app-header__name{font-size:1.15rem;line-height:1.2;white-space:nowrap}

/* ---------- Layout ---------- */
.page{max-width:1100px;margin:0 auto;padding:20px 16px 40px}
.page h2{font-size:1.15rem;margin:24px 0 10px}
.muted{color:var(--muted);font-size:.9rem}
.mono{font-family:ui-monospace,SFMono-Regular,Consolas,"Liberation Mono",Menlo,monospace;font-size:.8rem;word-break:break-all;color:var(--text-2)}

/* ---------- Buttons ---------- */
.btn{--btn-bg:var(--primary);--btn-ink:var(--primary-ink);
  display:inline-flex;align-items:center;justify-content:center;gap:6px;
  padding:.65rem 1rem;min-height:44px;border-radius:10px;border:1px solid var(--ring);
  background:var(--btn-bg);color:var(--btn-ink);font:inherit;font-weight:600;font-size:1rem;line-height:1;
  letter-spacing:.2px;cursor:pointer;text-decoration:none}
.btn:hover{filter:brightness(.97);text-decoration:none}
.btn:active{transform:translateY(1px)}
.btn:disabled{opacity:.5;cursor:not-allowed}
.btn--primary{}
.btn--secondary{--btn-bg:var(--btn2);--btn-ink:var(--btn2-ink);border-color:var(--btn2-line)}
.btn--danger{--btn-bg:var(--bad);border-color:var(--bad)}
.btn--ghost{--btn-bg:transparent;--btn-ink:var(--muted);border-color:transparent}
.btn--ghost:hover{background:var(--primary-weak);filter:none}
.btn--sm{min-height:34px;padding:.4rem .65rem;font-size:.92rem}
.btn--lg{min-height:48px;padding:.7rem 1.4rem}

/* ---------- Cards ---------- */
.card{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);padding:16px;box-shadow:var(--shadow)}
.grid{display:grid;gap:14px;grid-template-columns:repeat(auto-fit,minmax(200px,1fr))}
.stat__value{font-size:1.7rem;font-weight:700;line-height:1.2}
.list{display:flex;flex-direction:column;gap:12px}
.row{display:flex;align-items:center;gap:12px;flex-wrap:wrap}
.row__main{flex:1;min-width:200px}
.row__title{font-weight:600}
.actions{display:flex;gap:8px;flex-wrap:wrap}

.pill{display:inline-block;padding:2px 10px;border-radius:999px;font-size:.78rem;font-weight:600;vertical-align:middle}
.pill--ok{background:#dcfce7;color:#166534}
.pill--warn{background:#fef9c3;color:#854d0e}
.pill--off{background:var(--surface-2);color:var(--muted)}
.pill--info{background:var(--primary-weak);color:var(--info-ink)}

/* ---------- Forms ---------- */
.field{display:flex;flex-direction:column;gap:4px;margin-bottom:14px}
.field__label{font-size:.9rem;font-weight:600}
.field__input{display:block;width:100%;padding:.55rem .7rem;background:var(--field);color:var(--text);
  border:1px solid var(--border);border-radius:8px;font:inherit;font-size:1rem;line-height:1.4}
.field__input:focus{border-color:var(--primary);outline:2px solid var(--ring);outline-offset:1px}
.field__hint{font-size:.8rem;color:var(--muted)}
.checks{display:flex;flex-direction:column;gap:6px}
.checks label{display:flex;gap:8px;align-items:center;min-height:32px}

/* ---------- User menu (same pattern as the site's nav-user) ---------- */
.user-menu{position:relative}
.user-menu__trigger{border:1px solid transparent;background:none;cursor:pointer;padding:4px;border-radius:999px}
.user-menu__trigger:hover{background:var(--primary-weak);border-color:var(--primary)}
.user-menu__avatar{width:32px;height:32px;border-radius:50%;display:flex;align-items:center;justify-content:center;
  background:var(--primary-weak);color:var(--info-ink);font-weight:600;object-fit:cover}
.user-menu__dropdown{position:absolute;right:0;top:calc(100% + 10px);min-width:250px;background:var(--surface);
  border:1px solid var(--border);border-radius:14px;box-shadow:0 14px 40px rgba(15,23,42,.2);padding:10px 12px;z-index:100}
.user-menu__identity{padding:6px 10px 10px;border-bottom:1px solid var(--border);margin-bottom:6px}
.user-menu__name{font-weight:600}
.user-menu__email{font-size:.85rem;color:var(--muted)}
.user-menu__item{display:block;width:100%;padding:8px 10px;text-align:left;background:none;border:none;border-radius:9px;
  color:var(--text);font:inherit;cursor:pointer}
.user-menu__item:hover{background:var(--primary-weak)}
.user-menu__item--danger{color:var(--bad)}

/* ---------- Modal / toast ---------- */
.modal{position:fixed;inset:0;background:rgba(15,23,42,.25);backdrop-filter:blur(1px);display:flex;align-items:center;justify-content:center;padding:16px;z-index:200}
.modal[hidden],.toast[hidden]{display:none}
.modal__box{width:100%;max-width:480px;padding:18px 20px;border-radius:16px;box-shadow:0 16px 40px rgba(15,23,42,.2);max-height:90vh;overflow:auto}
.modal__box h3{margin:0 0 14px;font-size:1.05rem}
.toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--text);color:#fff;
  padding:10px 16px;border-radius:10px;box-shadow:var(--shadow);z-index:300}
.toast--error{background:var(--bad)}
.empty{text-align:center;padding:48px 16px}
.empty h1{font-size:1.6rem;margin:0 0 6px}

/* ---------- Icon buttons ---------- */
.icon-btn{display:inline-flex;align-items:center;justify-content:center;width:34px;height:34px;padding:0;border-radius:10px;
  border:1px solid var(--btn2-line);background:var(--btn2);color:var(--btn2-ink);cursor:pointer}
.icon-btn:hover{background:var(--primary-weak);border-color:var(--primary);color:var(--info-ink)}
.icon-btn svg{width:18px;height:18px;display:block;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.icon-btn--primary{background:var(--primary);border-color:var(--primary);color:#fff}
.icon-btn--primary:hover{filter:brightness(.95);background:var(--primary);color:#fff}
.icon-btn--danger{color:var(--bad)}   /* same box as the other icon buttons, red icon */
.icon-btn--danger:hover{background:#fee2e2;border-color:#fca5a5;color:var(--bad)}
.icon-btn--flat{background:transparent;border-color:transparent}

/* ---------- Tree: user > devices / folders ---------- */
.tree{display:flex;flex-direction:column;gap:12px}
.node{background:var(--surface);border:1px solid var(--border);border-radius:var(--radius);box-shadow:var(--shadow)}
.node>summary{list-style:none;cursor:pointer}
.node>summary::-webkit-details-marker{display:none}
.node__head{display:flex;align-items:center;gap:12px;padding:12px 14px}
.node__chev{width:18px;height:18px;flex:none;fill:none;stroke:var(--muted);stroke-width:2.2;stroke-linecap:round;stroke-linejoin:round;transition:transform .15s}
.node[open]>summary .node__chev{transform:rotate(90deg)}
.node__avatar{width:34px;height:34px;border-radius:50%;flex:none;display:flex;align-items:center;justify-content:center;
  background:var(--primary-weak);color:var(--info-ink);font-weight:700}
.node__title{flex:1;min-width:0}
.node__name{font-weight:700}
.node__body{margin:0 14px 12px 30px;padding-left:16px;border-left:2px solid var(--border)}
.branch{margin-top:6px}
.branch__head{display:flex;align-items:center;gap:8px;padding:6px 0;font-weight:600;color:var(--text-2)}
.branch__head svg{width:16px;height:16px;fill:none;stroke:currentColor;stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.branch__head span:first-of-type{flex:1}
.leaf{position:relative;display:flex;align-items:center;gap:12px;flex-wrap:wrap;padding:8px 10px;margin:4px 0;border-radius:10px;background:var(--bg);border:1px solid var(--border)}
.leaf::before{content:"";position:absolute;left:-18px;top:50%;width:16px;border-top:2px solid var(--border)}
.leaf__icon{width:20px;height:20px;flex:none;fill:none;stroke:var(--muted);stroke-width:2;stroke-linecap:round;stroke-linejoin:round}
.leaf__main{flex:1;min-width:180px}
.leaf__title{font-weight:600}
.empty-leaf{color:var(--muted);font-size:.9rem;padding:4px 10px}
.hubbar{display:flex;align-items:center;gap:12px;flex-wrap:wrap}

/* ---------- Device sign-in ---------- */
.devcode{font-size:2.2rem;font-weight:800;letter-spacing:.35em;padding:10px 0 10px .35em;font-family:ui-monospace,Consolas,monospace}

.user-menu__item--account{display:flex;align-items:center;gap:10px;height:auto;padding:8px 10px}
.user-menu__avatar--sm{width:26px;height:26px;font-size:.7rem}

.pill--os{background:var(--surface-2);color:var(--text-2);border:1px solid var(--border)}
.picker{border:1px solid var(--border);border-radius:var(--radius);padding:10px;background:var(--bg)}
.crumbs{display:flex;flex-wrap:wrap;gap:4px;align-items:center;margin-bottom:6px}
.crumb{border:none;background:none;color:var(--primary);font:inherit;font-size:.85rem;padding:2px 4px;border-radius:6px;cursor:pointer}
.crumb:hover{background:var(--primary-weak)}
.crumb+.crumb::before{content:"/";color:var(--muted);margin-right:6px}
.picker__list{max-height:190px;overflow:auto;display:flex;flex-direction:column;gap:2px;background:var(--surface);border:1px solid var(--border);border-radius:10px;padding:4px}
.picker__dir{display:flex;align-items:center;gap:8px;width:100%;border:none;background:none;text-align:left;font:inherit;padding:6px 8px;border-radius:8px;cursor:pointer;color:var(--text)}
.picker__dir:hover{background:var(--primary-weak)}

/* Wide screens (laptop windows, tablets): use the room instead of one phone-width column. */
@media (min-width:900px){
  .page{padding:28px 32px 56px}
  .grid{grid-template-columns:repeat(auto-fit,minmax(240px,1fr));gap:18px}
  /* a user's Devices and Folders side by side */
  .node__body{display:grid;grid-template-columns:minmax(0,1fr) minmax(0,1.4fr);gap:20px;align-items:start}
  .modal__box{max-width:560px}
}
@media (min-width:1400px){ .page{max-width:1320px} }

.warn{background:#fff4e5;border:1px solid #f5c27a;color:#6b3f00;border-radius:10px;padding:10px 12px;margin:10px 0;font-size:14px}
.more{margin-top:20px}.more>summary{cursor:pointer;font-weight:600;margin-bottom:8px}

.leaf--tap{cursor:pointer}.leaf--cloud .leaf__main,.leaf--cloud .leaf__icon{opacity:.55;filter:grayscale(1)}

/* ---------- header tools, S / A badges ---------- */
.app-header__tools{display:flex;align-items:center;gap:8px;margin-left:auto;margin-right:8px}
.tool-btn{min-width:36px;height:36px;padding:0 10px;border-radius:10px;border:1px solid var(--btn2-line);background:var(--btn2);color:var(--btn2-ink);font:inherit;font-weight:700;cursor:pointer}
.badge{display:inline-flex;align-items:center;justify-content:center;width:22px;height:22px;border-radius:6px;font-weight:800;font-size:.8rem;line-height:1;vertical-align:middle}
.badge--a{background:#dcfce7;color:#166534}
.badge--s{background:#fef3c7;color:#92400e}

/* ---------- dark theme ---------- */
:root[data-theme="dark"]{
  --bg:#0b1220; --surface:#111a2e; --surface-2:#18233b;
  --text:#e5e9f2; --text-2:#cbd5e1; --muted:#94a3b8;
  --primary:#3b82f6; --primary-weak:#1e3a6e; --ring:#3b82f6;
  --ok:#4ade80; --bad:#f87171; --warn:#facc15;
  --border:#22304d; --field:#0d1527; --btn2:#18233b; --btn2-ink:#e2e8f0; --btn2-line:#2a3a5c; --info-ink:#93c5fd;
  --shadow:0 1px 2px rgba(0,0,0,.4), 0 4px 12px rgba(0,0,0,.3);
  color-scheme:dark;
}
:root[data-theme="dark"] .pill--ok{background:#14532d;color:#bbf7d0}
:root[data-theme="dark"] .pill--warn{background:#4a3a07;color:#fde68a}
:root[data-theme="dark"] .warn{background:#3a2c0a;border-color:#6b5500;color:#fde68a}
:root[data-theme="dark"] .badge--a{background:#14532d;color:#bbf7d0}
:root[data-theme="dark"] .badge--s{background:#4a3a07;color:#fde68a}
:root[data-theme="dark"] .icon-btn--danger:hover{background:#4c1d1d;border-color:#7f1d1d}
:root[data-theme="dark"] .toast{background:#e5e9f2;color:#0b1220}
:root[data-theme="dark"] .modal{background:rgba(0,0,0,.55)}
:root[data-theme="dark"] .leaf--cloud .leaf__icon{color:#94a3b8}

.seg{display:inline-flex;border:1px solid var(--btn2-line);border-radius:10px;overflow:hidden;background:var(--btn2)}
.seg__btn{border:0;background:transparent;color:var(--btn2-ink);font:inherit;font-weight:600;padding:.5rem .9rem;min-height:40px;cursor:pointer}
.seg__btn+.seg__btn{border-left:1px solid var(--btn2-line)}
.seg__btn[aria-pressed="true"]{background:var(--primary);color:var(--primary-ink)}
.field__label{display:block;font-weight:600;margin:10px 0 6px}

.mode-switch{display:grid;grid-template-columns:1fr 1fr;gap:10px;margin:4px 0 12px}
.mode-switch__opt{display:flex;align-items:center;gap:10px;text-align:left;padding:10px 12px;border-radius:14px;border:1.5px solid var(--border);background:var(--surface);color:var(--text);font:inherit;cursor:pointer;min-height:56px}
.mode-switch__opt .badge{width:30px;height:30px;font-size:1rem;border-radius:9px;flex:none}
.mode-switch__text{display:flex;flex-direction:column;line-height:1.25}
.mode-switch__text b{font-size:.95rem}
.mode-switch__text small{color:var(--muted);font-size:.75rem}
.mode-switch__opt[aria-pressed="true"]{border-color:var(--primary);background:var(--primary-weak);box-shadow:0 0 0 1px var(--primary) inset}

/* one heading size for every foldable block */
.sec{margin:16px 0 8px}
.sec>summary{cursor:pointer;font-size:1.15rem;font-weight:700;line-height:1.3;padding:6px 0;list-style:none;display:flex;align-items:center;gap:8px}
.sec>summary::-webkit-details-marker{display:none}
.sec>summary::before{content:"";width:8px;height:8px;border-right:2px solid var(--muted);border-bottom:2px solid var(--muted);transform:rotate(-45deg);transition:transform .15s;flex:none}
.sec[open]>summary::before{transform:rotate(45deg)}
.sec>summary .muted{font-size:1.15rem;font-weight:400}
.sec__body{padding:6px 0 4px}

.cloud-btn{width:44px;height:44px;border-radius:12px;border:1.5px solid var(--btn2-line);background:transparent;color:#94a3b8;display:inline-flex;align-items:center;justify-content:center;cursor:pointer}
.cloud-btn svg{width:24px;height:24px;stroke:currentColor;fill:none;stroke-width:2}
.cloud-btn--on{background:var(--primary);border-color:var(--primary);color:#fff}
.cloud-btn--on svg{fill:currentColor}
.cloud-btn[disabled]{cursor:default;opacity:.85}

.warn--red{background:#fee2e2;border-color:#fca5a5;color:#b91c1c;font-weight:600}
:root[data-theme="dark"] .warn--red{background:#4c1d1d;border-color:#7f1d1d;color:#fecaca}
.btn--danger{--btn-bg:#dc2626;--btn-ink:#fff;border-color:#b91c1c}