:root{
  --bg:#071015;
  --panel:#0d1215;
  --card:#0f1518;
  --muted:#97a1a6;
  --accent:#8a5bff;     /* primary purple */
  --accent-2:#c28bff;   /* secondary lighter purple */
  --glass: rgba(255,255,255,0.03);
  --shadow: 0 10px 30px rgba(2,6,23,0.75);
  --radius:12px;
  --glass-2: rgba(255,255,255,0.02);
  font-family: Inter, system-ui, -apple-system, "Segoe UI", Roboto, "Helvetica Neue", Arial;
  color-scheme: dark;
}
*{box-sizing:border-box}
html,body,#app{height:100%}
body{
  margin:0;
  background:linear-gradient(180deg,var(--bg),#071014);
  display:flex;
  align-items:stretch;
  justify-content:flex-start;
  padding:12px;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

/* layout */
#app{display:flex;width:100%;max-width:1100px;border-radius:14px;overflow:hidden}
.sidebar{
  width:144px;
  min-width:120px;
  background:linear-gradient(180deg,var(--panel),#071114);
  padding:18px 14px;
  display:flex;
  flex-direction:column;
  gap:14px;
  border-right:1px solid var(--glass-2);
  align-items:center;
}
.brand{
  display:flex;
  flex-direction:column;
  align-items:center;
  gap:8px;
  text-align:center;
}
.brand-logo{
  width:56px;
  height:56px;
  object-fit:contain;
  border-radius:10px;
  background:transparent;
  padding:0;
  box-shadow: none;
  filter: drop-shadow(0 6px 18px rgba(0,0,0,0.6));
}

/* wider sidebar with icon + label style for Google-like UI */
.sidebar{
  width:200px;
  min-width:160px;
  background:linear-gradient(180deg,var(--panel),#071114);
  padding:18px 14px;
  display:flex;
  flex-direction:column;
  gap:14px;
  border-right:1px solid var(--glass-2);
  align-items:center;
}

/* side button: horizontal layout with icon and label */
.side-btn{
  background:transparent;
  color:var(--muted);
  border:0;
  padding:10px 12px;
  border-radius:10px;
  text-align:left;
  cursor:pointer;
  font-size:13px;
  width:100%;
  display:flex;
  align-items:center;
  gap:10px;
  transition:background .12s, color .12s, transform .12s;
}
.side-btn .material-icons{
  font-size:20px;
  color:var(--accent-2);
  line-height:1;
  margin-right:0;
  display:inline-block;
}
.side-btn .label{
  display:inline-block;
  white-space:nowrap;
  overflow:hidden;
  text-overflow:ellipsis;
}
.side-btn.active{
  background:linear-gradient(90deg, rgba(138,91,255,0.09), rgba(194,139,255,0.04));
  color:#fff;
  box-shadow:0 8px 24px rgba(0,0,0,0.45);
  transform:translateX(2px);
}
.sidebar-foot{margin-top:auto;color:var(--muted);font-size:12px;text-align:center;padding:6px}

/* content area */
.content{flex:1;display:flex;flex-direction:column;min-height:100vh}
.topbar{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding:14px 18px;
  border-bottom:1px solid var(--glass-2);
  background:linear-gradient(180deg, rgba(255,255,255,0.01), transparent);
}
.top-left{display:flex;align-items:center;gap:12px}
.header-logo{
  width:44px;height:44px;object-fit:contain;border-radius:8px;padding:4px;background:linear-gradient(90deg, rgba(255,255,255,0.02), transparent);
  box-shadow:0 6px 20px rgba(2,6,23,0.55);
}
.top-right{display:flex;align-items:center;gap:8px}
.top-right .btn{min-width:44px;min-height:44px;padding:8px;border-radius:10px}
.top-left h1{margin:0;color:#fff;font-size:16px;white-space:nowrap;overflow:hidden;text-overflow:ellipsis}
.tagline{font-size:12px;color:var(--muted);margin-top:4px}
.main-area{padding:18px;display:flex;gap:16px;flex-direction:column;align-items:stretch}
.footer-bar{padding:12px;text-align:center;color:var(--muted);border-top:1px solid rgba(255,255,255,0.02);background:transparent}

/* cards */
.card{
  background:linear-gradient(180deg,var(--card),rgba(255,255,255,0.01));
  border-radius:12px;padding:14px;box-shadow:var(--shadow);
  border:1px solid var(--glass-2);
  transition:transform .12s, box-shadow .12s;
}
.card:hover{ transform: translateY(-4px); box-shadow: 0 18px 48px rgba(2,6,23,0.65); }
.form-card .row{display:flex;gap:12px;margin-bottom:12px;align-items:flex-start}
.form-card .row.two{gap:12px}
.field{flex:1;display:flex;flex-direction:column;gap:6px}
label{font-size:12px;color:var(--muted);text-transform:uppercase;letter-spacing:0.6px}
input[type="date"],textarea,#search,input{
  width:100%;
  padding:10px 12px;
  border-radius:10px;
  border:1px solid rgba(255,255,255,0.03);
  background:var(--glass);
  color:#e6eef3;
  font-size:14px;
  outline:0;
  transition:box-shadow .12s, border-color .12s;
}
input::placeholder{color:rgba(255,255,255,0.18)}
input:focus, textarea:focus { box-shadow:0 8px 22px rgba(47,180,255,0.06); border-color:rgba(47,180,255,0.14) }
textarea{height:80px;resize:none}
.actions{display:flex;gap:10px}
button{
  padding:10px 12px;border-radius:10px;border:0;background:var(--accent);color:#071014;font-weight:700;
  min-height:44px;flex:1;cursor:pointer;
}
button.muted{background:transparent;color:var(--muted);border:1px solid rgba(255,255,255,0.03)}
#results, #birthdays{min-height:40px}
.client{
  padding:12px;border-radius:10px;margin-bottom:10px;background:linear-gradient(180deg,rgba(255,255,255,0.01),transparent);
  border:1px solid rgba(255,255,255,0.02);
  display:flex;flex-direction:column;gap:8px;color:#e6eef3;
}
.client .meta{display:flex;gap:10px;align-items:center;flex-wrap:wrap}
.small{font-size:13px;color:var(--muted)}
.actions-row{display:flex;gap:8px;flex-wrap:wrap}
.btn{padding:8px 12px;border-radius:8px;border:0;background:var(--accent-2);color:#071014;text-decoration:none;font-size:13px;display:inline-flex;align-items:center;gap:8px}
.btn.ghost{background:transparent;color:var(--muted);border:1px solid rgba(255,255,255,0.03)}
.tiny{font-size:12px;color:var(--muted);text-align:center;padding:8px}

/* indicators for dates */
.indicator{
  display:inline-block;padding:4px 6px;border-radius:8px;font-size:11px;color:#071014;font-weight:700;margin-left:8px;
}
.birthday-ind{background:linear-gradient(90deg,#8a5bff,#a87cff)}
.visit-ind{background:linear-gradient(90deg,#c28bff,#8a5bff)}

/* modal summary */
.modal-backdrop{position:fixed;inset:0;background:rgba(2,6,23,0.6);display:flex;align-items:center;justify-content:center;z-index:9999}
.modal-card{background:linear-gradient(180deg,#0f1416,#081012);padding:16px;border-radius:12px;max-width:92%;width:560px;box-shadow:0 20px 50px rgba(2,6,23,0.6);color:#e6eef3;border:1px solid rgba(255,255,255,0.03)}

/* full-screen lock overlay when account is required or session locked */
.lock-backdrop{
  position:fixed;
  inset:0;
  z-index:10000;
  display:flex;
  align-items:center;
  justify-content:center;
  background:linear-gradient(180deg, rgba(2,6,23,0.85), rgba(2,6,23,0.95));
  color:#e6eef3;
  flex-direction:column;
  gap:12px;
  padding:20px;
}
.lock-card{
  max-width:560px;
  width:100%;
  background:linear-gradient(180deg,#0f1416,#071014);
  border-radius:12px;
  padding:18px;
  border:1px solid rgba(255,255,255,0.03);
  box-shadow:0 20px 50px rgba(0,0,0,0.6);
  text-align:center;
}
.lock-card .small{color:var(--muted);margin-top:8px}
.lock-actions{display:flex;gap:8px;justify-content:center;margin-top:12px}

/* panels */
.panel.hidden{display:none}

/* responsive tweaks */
@media (max-width:920px){
  .sidebar{width:84px}
  .brand-logo{width:40px;height:40px}
  .top-left h1{font-size:15px}
}
@media (max-width:760px){
  .sidebar{display:none}
  #app{max-width:100%}
  .form-card .row.two{flex-direction:column}
  .modal-card{width:96%}
  .actions{flex-direction:column}
  .btn{width:100%}
}