/* ============================ Theme tokens ============================ */
:root, :root[data-theme="dark"]{
  --bg:#0b0c0f; --panel:#16181d; --panel2:#1d2027; --line:#2a2d35;
  --text:#f3f4f6; --muted:#9aa3b2; --accent:#4f8cff; --accent2:#3f7cf0;
  --sidebar:#101218; --sidebar-line:#23262e; --sidebar-active:#1d2230;
  --input-bg:#0e0f13; --danger:#e05656; --ok:#27ae60; --shadow:0 6px 24px rgba(0,0,0,.35);
  --radius:12px;
}
:root[data-theme="light"]{
  --bg:#f4f6fa; --panel:#ffffff; --panel2:#f1f3f8; --line:#e2e6ee;
  --text:#1b2430; --muted:#677084; --accent:#2f6bff; --accent2:#245ae0;
  --sidebar:#ffffff; --sidebar-line:#e6e9f0; --sidebar-active:#eef3ff;
  --input-bg:#ffffff; --danger:#d23b3b; --ok:#1c9a52; --shadow:0 6px 22px rgba(40,60,100,.10);
}
*{box-sizing:border-box;-webkit-tap-highlight-color:transparent}
html,body{margin:0;background:var(--bg);color:var(--text);
  font-family:system-ui,-apple-system,Segoe UI,Roboto,sans-serif;font-size:15px}
a{color:var(--accent);text-decoration:none}

button{font:inherit;cursor:pointer;border-radius:10px;border:1px solid var(--line);
  background:var(--panel2);color:var(--text);padding:9px 14px;min-height:40px}
button:hover{filter:brightness(1.06)}
button:active{transform:scale(.98)}
button.primary{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}
button.danger{background:transparent;border-color:color-mix(in srgb,var(--danger) 45%, transparent);color:var(--danger)}
button.ghost{background:transparent}
button.sm{padding:6px 10px;min-height:32px;font-size:13px}
input,select,textarea{font:inherit;background:var(--input-bg);color:var(--text);
  border:1px solid var(--line);border-radius:10px;padding:10px 12px;width:100%}
input:focus,select:focus,textarea:focus{outline:none;border-color:var(--accent)}
label{display:block;font-size:13px;color:var(--muted);margin:0 0 6px}
.row{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.spacer{flex:1}.muted{color:var(--muted)}
.pill{display:inline-block;font-size:12px;padding:2px 9px;border-radius:999px;
  border:1px solid var(--line);background:var(--panel2);color:var(--muted)}
.pill.owner{color:#c9962a;border-color:#d8b86a55}
.pill.editor{color:#2f8fce;border-color:#2f8fce55}
.pill.viewer{color:var(--muted)}

/* ============================ CRM shell ============================ */
.shell{display:grid;grid-template-columns:230px 1fr;min-height:100vh}
.sidebar{background:var(--sidebar);border-right:1px solid var(--sidebar-line);
  display:flex;flex-direction:column;padding:14px 12px;position:sticky;top:0;height:100vh}
.sidebar .brand{font-weight:800;font-size:19px;letter-spacing:.2px;padding:6px 8px 14px}
.sidebar .brand small{color:var(--accent)}
.sidebar nav{display:flex;flex-direction:column;gap:3px}
.sidebar nav a{display:flex;align-items:center;gap:10px;padding:10px 12px;border-radius:10px;
  color:var(--muted);font-weight:500}
.sidebar nav a .ic{width:18px;text-align:center;opacity:.9}
.sidebar nav a:hover{background:var(--sidebar-active);color:var(--text)}
.sidebar nav a.active{background:var(--sidebar-active);color:var(--text)}
.sidebar .sec{font-size:11px;text-transform:uppercase;letter-spacing:.6px;color:var(--muted);
  padding:14px 12px 6px;opacity:.7}
.sidebar .bottom{margin-top:auto;border-top:1px solid var(--sidebar-line);padding-top:10px}
.sidebar .teamsel label{margin:0 4px 4px}
.sidebar .who{display:flex;align-items:center;gap:8px;padding:8px;color:var(--muted);font-size:13px}
.sidebar .avatar{width:28px;height:28px;border-radius:50%;background:var(--accent);color:#fff;
  display:flex;align-items:center;justify-content:center;font-weight:700;font-size:13px}

.main{display:flex;flex-direction:column;min-width:0}
.topbar{display:flex;align-items:center;gap:10px;padding:12px 18px;background:var(--panel);
  border-bottom:1px solid var(--line);position:sticky;top:0;z-index:10;flex-wrap:wrap}
.topbar h1{font-size:17px;margin:0;font-weight:700}
.content{padding:20px 18px 60px;max-width:1080px;width:100%}

/* mobile: collapse sidebar to a top strip */
.menu-toggle{display:none}
@media(max-width:820px){
  .shell{grid-template-columns:1fr}
  .sidebar{position:fixed;z-index:40;left:0;top:0;width:240px;transform:translateX(-100%);
    transition:transform .2s ease;box-shadow:var(--shadow)}
  .sidebar.open{transform:translateX(0)}
  .menu-toggle{display:inline-flex}
  .scrim{display:none;position:fixed;inset:0;background:rgba(0,0,0,.45);z-index:30}
  .scrim.open{display:block}
}

/* ============================ Cards / tables ============================ */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  padding:18px;box-shadow:var(--shadow)}
.card h2{margin:0 0 4px;font-size:18px}
.card+.card{margin-top:16px}
table{width:100%;border-collapse:collapse;font-size:14px}
th,td{text-align:left;padding:11px 10px;border-bottom:1px solid var(--line);vertical-align:middle}
th{color:var(--muted);font-weight:600;font-size:12px;text-transform:uppercase;letter-spacing:.4px}
tbody tr:hover td{background:color-mix(in srgb,var(--accent) 6%, transparent)}
.table-actions{display:flex;gap:6px;justify-content:flex-end}
.empty{padding:30px;text-align:center;color:var(--muted)}
.pager{display:flex;gap:8px;align-items:center;justify-content:flex-end;margin-top:12px}
.pager .page-info{color:var(--muted);font-size:13px;margin-right:auto}

/* ============================ Switch / checkbox ============================ */
.switch{display:inline-flex;align-items:center;gap:8px;cursor:pointer;user-select:none;font-size:13px;color:var(--muted)}
.switch input{display:none}
.switch .track{width:38px;height:22px;border-radius:999px;background:var(--line);position:relative;transition:.15s}
.switch .track::after{content:'';position:absolute;top:2px;left:2px;width:18px;height:18px;border-radius:50%;
  background:#fff;transition:.15s;box-shadow:0 1px 3px rgba(0,0,0,.3)}
.switch input:checked + .track{background:var(--accent)}
.switch input:checked + .track::after{left:18px}

/* segmented (theme) control */
.seg{display:inline-flex;border:1px solid var(--line);border-radius:10px;overflow:hidden}
.seg button{border:0;border-radius:0;min-height:36px;padding:7px 12px;background:transparent;color:var(--muted)}
.seg button.active{background:var(--accent);color:#fff}

/* ============================ Modal / toast ============================ */
.modal-bg{position:fixed;inset:0;background:rgba(0,0,0,.55);display:none;align-items:center;justify-content:center;padding:16px;z-index:60}
.modal-bg.open{display:flex}
.modal{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);
  width:100%;max-width:640px;max-height:88vh;overflow:auto;padding:20px;box-shadow:var(--shadow)}
.modal h3{margin:0 0 14px}
.modal textarea{height:42vh;line-height:1.5;resize:vertical}
.field{margin-bottom:12px}
#toast{position:fixed;bottom:20px;left:50%;transform:translateX(-50%);background:var(--panel2);
  border:1px solid var(--line);color:var(--text);padding:11px 16px;border-radius:10px;opacity:0;
  transition:opacity .2s,transform .2s;z-index:90;pointer-events:none;box-shadow:var(--shadow)}
#toast.show{opacity:1;transform:translateX(-50%) translateY(-4px)}
#toast.err{border-color:color-mix(in srgb,var(--danger) 50%, transparent)}

/* ============================ Auth page ============================ */
.auth{min-height:100vh;display:flex;align-items:center;justify-content:center;padding:16px}
.auth .card{width:100%;max-width:400px}
.auth .tabs{display:flex;gap:6px;margin-bottom:16px}
.auth .tabs button{flex:1}
.auth .tabs button.active{background:var(--accent);border-color:var(--accent);color:#fff;font-weight:600}