/* SYNOLO — φύλλο στυλ */
:root{
  --bg:#f4f6f9; --panel:#ffffff; --ink:#1b2431; --muted:#6b7787; --line:#e3e8ef;
  --brand:#0f5ea8; --brand-d:#0b4681; --ok:#1f8a4c; --warn:#b7791f; --err:#c0392b;
  --side:#141d2b; --radius:10px;
}
*{box-sizing:border-box}
html,body{margin:0;padding:0}
body{font:15px/1.5 -apple-system,BlinkMacSystemFont,"Segoe UI",Roboto,"Helvetica Neue",Arial,sans-serif;
     background:var(--bg);color:var(--ink);-webkit-text-size-adjust:100%}
a{color:var(--brand);text-decoration:none}
a:hover{text-decoration:underline}
h1,h2,h3{margin:0 0 .6rem;font-weight:650;letter-spacing:-.01em}
h1{font-size:1.25rem}
h2{font-size:1.05rem}
.muted{color:var(--muted)}
.small{font-size:.85rem}
.right{text-align:right}
.center{text-align:center}
.nowrap{white-space:nowrap}

/* ---------- Σκελετός ---------- */
.shell{display:flex;min-height:100vh}
.side{width:236px;background:var(--side);color:#c8d2e0;display:flex;flex-direction:column;flex:0 0 236px}
.side-head{padding:18px 18px 12px;border-bottom:1px solid rgba(255,255,255,.08)}
.side-head .logo{font-weight:800;letter-spacing:.14em;color:#fff;font-size:1.05rem}
.side-head small{display:block;color:#8b98ab;margin-top:4px;font-size:.78rem;line-height:1.3}
.side nav{padding:10px 8px;flex:1;overflow-y:auto}
.side nav a{display:flex;gap:9px;align-items:center;padding:9px 11px;border-radius:8px;color:#c8d2e0;font-size:.92rem}
.side nav a:hover{background:rgba(255,255,255,.07);text-decoration:none}
.side nav a.active{background:var(--brand);color:#fff}
.side nav a .ic{width:18px;text-align:center;opacity:.9}
.nav-sep{margin:14px 12px 6px;font-size:.7rem;text-transform:uppercase;letter-spacing:.1em;color:#6e7c92}
.side-foot{padding:12px;border-top:1px solid rgba(255,255,255,.08)}
.side-foot .who{font-size:.83rem;color:#9fadc0;margin-bottom:8px}
.side-foot .who small{color:#6e7c92}
.main{flex:1;min-width:0;display:flex;flex-direction:column}
.topbar{display:flex;align-items:center;gap:12px;padding:14px 22px;background:var(--panel);border-bottom:1px solid var(--line)}
.topbar h1{margin:0;flex:1}
.topbar-actions{display:flex;gap:8px;flex-wrap:wrap}
.burger{display:none;background:none;border:0;font-size:1.3rem;cursor:pointer}
.content{padding:22px;flex:1}

/* ---------- Κάρτες / πίνακες ---------- */
.card{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:18px;margin-bottom:18px}
.card h2{margin-top:0}
.grid{display:grid;gap:16px}
.g2{grid-template-columns:repeat(2,1fr)}
.g3{grid-template-columns:repeat(3,1fr)}
.g4{grid-template-columns:repeat(4,1fr)}
.stat{background:var(--panel);border:1px solid var(--line);border-radius:var(--radius);padding:16px}
.stat .k{font-size:.78rem;color:var(--muted);text-transform:uppercase;letter-spacing:.06em}
.stat .v{font-size:1.5rem;font-weight:700;margin-top:4px}
table{width:100%;border-collapse:collapse;font-size:.92rem}
th,td{padding:9px 10px;border-bottom:1px solid var(--line);text-align:left;vertical-align:middle}
th{font-size:.76rem;text-transform:uppercase;letter-spacing:.05em;color:var(--muted);font-weight:600}
tbody tr:hover{background:#fafbfd}
.table-wrap{overflow-x:auto}
.empty{padding:34px;text-align:center;color:var(--muted)}

/* ---------- Στοιχεία φόρμας ---------- */
label{display:block;margin-bottom:12px;font-size:.85rem;color:#41506a;font-weight:600}
input,select,textarea{width:100%;padding:9px 11px;border:1px solid #cfd8e3;border-radius:8px;font:inherit;
  background:#fff;color:var(--ink);margin-top:4px}
input:focus,select:focus,textarea:focus{outline:2px solid #bcd6ef;border-color:var(--brand)}
input[readonly]{background:#f2f5f8}
textarea{min-height:80px;resize:vertical}
.row{display:flex;gap:12px;flex-wrap:wrap}
.row>*{flex:1;min-width:170px}
.inline{display:flex;gap:8px;align-items:flex-end}
fieldset{border:1px solid var(--line);border-radius:var(--radius);padding:14px;margin:0 0 16px}
legend{font-weight:650;padding:0 6px;font-size:.9rem}

.btn{display:inline-block;padding:9px 15px;border-radius:8px;border:1px solid #cfd8e3;background:#fff;
  color:var(--ink);font:inherit;font-weight:600;cursor:pointer;text-align:center}
.btn:hover{text-decoration:none;background:#f3f6fa}
.btn.primary{background:var(--brand);border-color:var(--brand);color:#fff}
.btn.primary:hover{background:var(--brand-d)}
.btn.danger{background:#fff;border-color:#e3b5b0;color:var(--err)}
.btn.danger:hover{background:#fdf3f2}
.btn.ghost{background:transparent;border-color:rgba(255,255,255,.2);color:#c8d2e0}
.btn.ghost:hover{background:rgba(255,255,255,.08)}
.btn.sm{padding:5px 10px;font-size:.85rem}
.btn.block{display:block;width:100%}
.btn[disabled]{opacity:.5;cursor:not-allowed}

.badge{display:inline-block;padding:2px 8px;border-radius:999px;font-size:.75rem;font-weight:600;
  background:#eef2f7;color:#4a5a70;white-space:nowrap}
.badge.ok{background:#e4f5ea;color:#1f8a4c}
.badge.warn{background:#fdf1dc;color:#a2691a}
.badge.err{background:#fbe8e6;color:#b03024}
.badge.info{background:#e6eff9;color:#0f5ea8}

.banner{padding:11px 22px;font-size:.9rem;border-bottom:1px solid var(--line);background:#eef4fb;color:#12457c}
.banner.warn{background:#fdf5e5;color:#8a5c12}
.banner.err{background:#fbe9e7;color:#96271b}
.banner.ok{background:#e7f6ec;color:#186b3d}
.alert{padding:11px 13px;border-radius:8px;margin-bottom:14px;font-size:.9rem}
.alert.ok{background:#e7f6ec;color:#186b3d}
.alert.err{background:#fbe9e7;color:#96271b}
.alert.info{background:#eef4fb;color:#12457c}

/* ---------- Σύνδεση / εγγραφή ---------- */
.auth-body{display:flex;align-items:center;justify-content:center;min-height:100vh;
  background:linear-gradient(160deg,#16233a,#0f5ea8);padding:20px}
.auth-card{background:#fff;border-radius:14px;padding:30px;width:100%;max-width:430px;
  box-shadow:0 18px 50px rgba(10,25,50,.28)}
.auth-card .brand{font-weight:800;letter-spacing:.16em;text-align:center;margin-bottom:2px}
.auth-card>.muted{text-align:center;margin:0 0 20px}

/* ---------- Γραμμές παραστατικού ---------- */
.lines{width:100%;border-collapse:collapse}
.lines th{font-size:.72rem}
.lines td{padding:5px 4px;border-bottom:1px solid var(--line)}
.lines input,.lines select{margin:0;padding:6px 7px;font-size:.88rem}
.lines .num{text-align:right}
.totals{margin-left:auto;max-width:340px;font-size:.95rem}
.totals div{display:flex;justify-content:space-between;padding:5px 0;border-bottom:1px dashed var(--line)}
.totals .grand{font-size:1.15rem;font-weight:700;border-bottom:0;padding-top:10px}

/* ---------- Εκτύπωση παραστατικού ---------- */
.sheet{background:#fff;width:210mm;min-height:297mm;margin:16px auto;padding:14mm;
  box-shadow:0 4px 24px rgba(0,0,0,.12);color:#111;font-size:12px}
.sheet h2{font-size:15px}
.sheet .head{display:flex;justify-content:space-between;gap:20px;border-bottom:2px solid #111;padding-bottom:10px}
.sheet .box{border:1px solid #999;border-radius:6px;padding:8px;margin-top:10px}
.sheet table{font-size:11.5px}
.sheet th{background:#f0f0f0;color:#111;border-bottom:1px solid #999}
.sheet td{border-bottom:1px solid #ddd}
.print-bar{max-width:210mm;margin:16px auto 0;display:flex;gap:8px;justify-content:flex-end}
@media print{
  .print-bar,.side,.topbar,.banner{display:none!important}
  body{background:#fff}
  .sheet{box-shadow:none;margin:0;width:auto;min-height:0;padding:0}
  @page{size:A4;margin:12mm}
}

/* ---------- Αναδυόμενο ---------- */
.modal{position:fixed;inset:0;background:rgba(15,25,40,.55);display:none;align-items:center;justify-content:center;z-index:60;padding:16px}
.modal.open{display:flex}
.modal .box{background:#fff;border-radius:12px;max-width:640px;width:100%;max-height:88vh;overflow:auto;padding:20px}
.pick-list{max-height:340px;overflow:auto;border:1px solid var(--line);border-radius:8px;margin-top:10px}
.pick-list div{padding:9px 11px;border-bottom:1px solid var(--line);cursor:pointer}
.pick-list div:hover{background:#eef4fb}

@media(max-width:900px){
  .g4{grid-template-columns:repeat(2,1fr)}
  .g3,.g2{grid-template-columns:1fr}
}
@media(max-width:760px){
  .side{position:fixed;inset:0 auto 0 0;transform:translateX(-100%);transition:.2s;z-index:50}
  .side.open{transform:none}
  .burger{display:block}
  .content{padding:14px}
  .g4{grid-template-columns:1fr}
  .sheet{width:auto;padding:8mm}
}