/* =====================================================================
   Energy Platform — Design system
   Richting (stijl-intake klant): fris & modern, clean met veel ruimte,
   licht thema, diep groen met crème, Apple-achtige minimalisme.
   Single-brand: alle merkkleuren staan centraal in :root, zodat een
   partnerstijl later inplugbaar is zonder herbouw.
   ===================================================================== */

:root {
  /* --- Merk: diep groen --- */
  --brand-900: #0d3626;
  --brand-800: #114832;
  --brand-700: #165a40;
  --brand-600: #1c6e4f;
  --brand-500: #248a63;   /* primair accent */
  --brand-400: #3aa87d;
  --brand-300: #7cc7a9;
  --brand-200: #b9e0d0;
  --brand-100: #ddefe6;
  --brand-50:  #eef7f2;

  /* --- Crème / warme neutralen --- */
  --cream:      #f7f3ea;   /* pagina-achtergrond */
  --cream-soft: #fbf8f1;
  --surface:    #ffffff;   /* kaarten */
  --surface-2:  #faf8f3;

  /* --- Inkt / tekst (groen-getint zwart) --- */
  --ink-900: #14201b;
  --ink-700: #2c3a33;
  --ink-500: #5c6b63;
  --ink-400: #7d8a82;
  --ink-300: #a7b0aa;

  /* --- Randen --- */
  --border:        #e9e3d5;
  --border-strong: #ddd5c3;
  --border-cool:   #e6ede9;

  /* --- Datakleuren (grafieken) --- */
  --data-solar:    #e8a13c;   /* zon — warm goud */
  --data-battery:  #248a63;   /* batterij — merkgroen */
  --data-charger:  #2b8f9e;   /* laadpaal — teal */
  --data-usage:    #9a8f76;   /* verbruik — warm grijs */
  --data-solar-soft:   #f7e6c8;
  --data-battery-soft: #d6ece1;
  --data-charger-soft: #d3e9ec;

  /* --- Status --- */
  --ok:      #248a63;
  --ok-bg:   #e2f1ea;
  --warn:    #b7791f;
  --warn-bg: #faf0da;
  --err:     #bb3f2c;
  --err-bg:  #f8e6e1;
  --idle:    #7d8a82;
  --idle-bg: #eef0ed;

  /* --- Typografie --- */
  --font: system-ui, -apple-system, "SF Pro Text", "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
  --fs-display: 2.25rem;   /* 36 */
  --fs-h1: 1.625rem;       /* 26 */
  --fs-h2: 1.25rem;        /* 20 */
  --fs-h3: 1.0625rem;      /* 17 */
  --fs-body: 0.9375rem;    /* 15 */
  --fs-sm: 0.8125rem;      /* 13 */
  --fs-xs: 0.6875rem;      /* 11 */
  --lh: 1.55;

  /* --- Spacing (4px ritme) --- */
  --s-1: 4px; --s-2: 8px; --s-3: 12px; --s-4: 16px;
  --s-5: 20px; --s-6: 24px; --s-8: 32px; --s-10: 40px;
  --s-12: 48px; --s-16: 64px;

  /* --- Radius --- */
  --r-sm: 8px; --r-md: 12px; --r-lg: 16px; --r-xl: 22px; --r-pill: 999px;

  /* --- Schaduw (subtiel, Apple-achtig) --- */
  --sh-1: 0 1px 2px rgba(20,32,27,.04), 0 1px 3px rgba(20,32,27,.05);
  --sh-2: 0 2px 6px rgba(20,32,27,.05), 0 6px 20px rgba(20,32,27,.06);
  --sh-3: 0 8px 30px rgba(20,32,27,.10);
  --ring: 0 0 0 3px rgba(36,138,99,.28);

  --maxw: 1240px;
}

/* ===================== Reset / basis ===================== */
* { box-sizing: border-box; }
html, body { margin: 0; padding: 0; }
body {
  font-family: var(--font);
  font-size: var(--fs-body);
  line-height: var(--lh);
  color: var(--ink-900);
  background: var(--cream);
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}
h1,h2,h3,h4,p { margin: 0; }
button { font-family: inherit; }
a { color: inherit; }
::selection { background: var(--brand-200); }

/* Scrollbar (webkit) */
*::-webkit-scrollbar { width: 10px; height: 10px; }
*::-webkit-scrollbar-thumb { background: var(--border-strong); border-radius: var(--r-pill); border: 2px solid var(--cream); }

/* ===================== Typografie-helpers ===================== */
.display { font-size: var(--fs-display); font-weight: 700; letter-spacing: -.02em; line-height: 1.1; }
.h1 { font-size: var(--fs-h1); font-weight: 680; letter-spacing: -.015em; }
.h2 { font-size: var(--fs-h2); font-weight: 640; letter-spacing: -.01em; }
.h3 { font-size: var(--fs-h3); font-weight: 620; }
.muted { color: var(--ink-500); }
.subtle { color: var(--ink-400); }
.eyebrow { font-size: var(--fs-xs); font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--brand-600); }
.mono-num { font-variant-numeric: tabular-nums; letter-spacing: -.01em; }

/* ===================== Layout ===================== */
.app-shell { min-height: 100vh; display: flex; flex-direction: column; }
.container { width: 100%; max-width: var(--maxw); margin: 0 auto; padding: 0 var(--s-6); }
.stack { display: flex; flex-direction: column; }
.row { display: flex; align-items: center; }
.spread { display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); }
.wrap { flex-wrap: wrap; }
.gap-2 { gap: var(--s-2); } .gap-3 { gap: var(--s-3); } .gap-4 { gap: var(--s-4); }
.gap-6 { gap: var(--s-6); } .gap-8 { gap: var(--s-8); }
.grid { display: grid; gap: var(--s-5); }
.fill { flex: 1; }

/* ===================== Topbar ===================== */
.topbar {
  position: sticky; top: 0; z-index: 30;
  background: rgba(255,255,255,.82);
  backdrop-filter: saturate(1.4) blur(14px);
  -webkit-backdrop-filter: saturate(1.4) blur(14px);
  border-bottom: 1px solid var(--border);
}
.topbar-inner { height: 64px; display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); }
.brand { display: flex; align-items: center; gap: var(--s-3); font-weight: 680; letter-spacing: -.01em; }
.brand-mark {
  width: 34px; height: 34px; border-radius: 10px; flex: none;
  display: grid; place-items: center; color: #fff;
  background: linear-gradient(145deg, var(--brand-500), var(--brand-800));
  box-shadow: var(--sh-1);
}
.brand-mark svg { width: 20px; height: 20px; }

/* ===================== Sidebar (beheer) ===================== */
.layout { display: grid; grid-template-columns: 248px 1fr; flex: 1; min-height: 0; }
.sidebar {
  border-right: 1px solid var(--border);
  background: var(--cream-soft);
  padding: var(--s-6) var(--s-4);
  display: flex; flex-direction: column; gap: var(--s-1);
}
.side-label { font-size: var(--fs-xs); font-weight: 700; letter-spacing: .08em; text-transform: uppercase; color: var(--ink-400); padding: var(--s-3) var(--s-3) var(--s-2); }
.nav-item {
  display: flex; align-items: center; gap: var(--s-3);
  padding: 10px var(--s-3); border-radius: var(--r-md);
  color: var(--ink-700); font-weight: 550; font-size: var(--fs-body);
  cursor: pointer; border: none; background: none; text-align: left; width: 100%;
  transition: background .15s, color .15s;
}
.nav-item svg { width: 19px; height: 19px; flex: none; color: var(--ink-400); transition: color .15s; }
.nav-item:hover { background: var(--brand-50); color: var(--brand-800); }
.nav-item:hover svg { color: var(--brand-600); }
.nav-item.active { background: var(--brand-600); color: #fff; box-shadow: var(--sh-1); }
.nav-item.active svg { color: #fff; }
.nav-item .badge-count { margin-left: auto; }
.main { padding: var(--s-8) 0 var(--s-16); min-width: 0; }
.main .container { max-width: 1120px; }

/* ===================== Cards ===================== */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--r-lg);
  box-shadow: var(--sh-1);
}
.card-pad { padding: var(--s-6); }
.card-hoverable { transition: box-shadow .18s, transform .18s, border-color .18s; cursor: pointer; }
.card-hoverable:hover { box-shadow: var(--sh-2); transform: translateY(-2px); border-color: var(--border-strong); }
.card-head { display: flex; align-items: center; justify-content: space-between; gap: var(--s-4); margin-bottom: var(--s-5); }

/* KPI / stat card */
.stat { display: flex; flex-direction: column; gap: var(--s-2); }
.stat-label { font-size: var(--fs-sm); color: var(--ink-500); font-weight: 550; display: flex; align-items: center; gap: var(--s-2); }
.stat-value { font-size: 2rem; font-weight: 700; letter-spacing: -.02em; line-height: 1; font-variant-numeric: tabular-nums; }
.stat-value .unit { font-size: 1rem; font-weight: 600; color: var(--ink-400); margin-left: 2px; }
.stat-foot { font-size: var(--fs-sm); color: var(--ink-500); display: flex; align-items: center; gap: 6px; }
.trend-up { color: var(--ok); font-weight: 600; }
.trend-down { color: var(--err); font-weight: 600; }
.stat-icon { width: 40px; height: 40px; border-radius: 12px; display: grid; place-items: center; flex: none; }
.stat-icon svg { width: 21px; height: 21px; }

/* ===================== Badges / pills ===================== */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  padding: 4px 10px; border-radius: var(--r-pill);
  font-size: var(--fs-sm); font-weight: 600; line-height: 1; white-space: nowrap;
}
.badge .dot { width: 7px; height: 7px; border-radius: 50%; flex: none; }
.badge-ok    { background: var(--ok-bg);   color: #16603f; } .badge-ok .dot { background: var(--ok); }
.badge-warn  { background: var(--warn-bg); color: #8a5a12; } .badge-warn .dot { background: var(--warn); }
.badge-err   { background: var(--err-bg);  color: #8f2c1c; } .badge-err .dot { background: var(--err); }
.badge-idle  { background: var(--idle-bg); color: #566058; } .badge-idle .dot { background: var(--idle); }
.badge-brand { background: var(--brand-100); color: var(--brand-800); }
.badge-count { background: var(--brand-100); color: var(--brand-800); font-size: var(--fs-xs); padding: 2px 8px; }
.nav-item.active .badge-count { background: rgba(255,255,255,.22); color: #fff; }

.chip {
  display: inline-flex; align-items: center; gap: 6px; padding: 5px 11px;
  border-radius: var(--r-pill); font-size: var(--fs-sm); font-weight: 550;
  background: var(--surface-2); border: 1px solid var(--border); color: var(--ink-700);
}
.chip svg { width: 14px; height: 14px; }

/* ===================== Buttons ===================== */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: var(--s-2);
  padding: 10px 18px; min-height: 44px; border-radius: var(--r-md);
  font-size: var(--fs-body); font-weight: 600; cursor: pointer;
  border: 1px solid transparent; transition: background .15s, box-shadow .15s, border-color .15s, transform .05s;
  white-space: nowrap;
}
.btn:active { transform: translateY(1px); }
.btn svg { width: 18px; height: 18px; }
.btn-primary { background: var(--brand-600); color: #fff; box-shadow: var(--sh-1); }
.btn-primary:hover { background: var(--brand-700); box-shadow: var(--sh-2); }
.btn-ghost { background: var(--surface); color: var(--ink-700); border-color: var(--border-strong); }
.btn-ghost:hover { background: var(--surface-2); border-color: var(--ink-300); }
.btn-subtle { background: var(--brand-50); color: var(--brand-800); }
.btn-subtle:hover { background: var(--brand-100); }
.btn-danger { background: var(--err); color: #fff; }
.btn-danger:hover { background: #a5361f; }
.btn-sm { min-height: 36px; padding: 7px 13px; font-size: var(--fs-sm); border-radius: var(--r-sm); }
.btn-icon { min-height: 40px; width: 40px; padding: 0; }
.btn:focus-visible { outline: none; box-shadow: var(--ring); }

/* Segmented control (dag/maand/jaar) */
.segment { display: inline-flex; background: var(--surface-2); border: 1px solid var(--border); border-radius: var(--r-md); padding: 3px; gap: 2px; }
.segment button {
  border: none; background: none; cursor: pointer; padding: 7px 15px;
  border-radius: 9px; font-size: var(--fs-sm); font-weight: 600; color: var(--ink-500);
  min-height: 36px; transition: background .15s, color .15s, box-shadow .15s;
}
.segment button:hover { color: var(--ink-900); }
.segment button.active { background: var(--surface); color: var(--brand-800); box-shadow: var(--sh-1); }
.segment button:focus-visible { outline: none; box-shadow: var(--ring); }

/* ===================== Forms ===================== */
.field { display: flex; flex-direction: column; gap: 7px; }
.label { font-size: var(--fs-sm); font-weight: 600; color: var(--ink-700); }
.input, .select {
  width: 100%; padding: 11px 13px; min-height: 44px;
  border: 1px solid var(--border-strong); border-radius: var(--r-md);
  background: var(--surface); color: var(--ink-900); font-size: var(--fs-body); font-family: inherit;
  transition: border-color .15s, box-shadow .15s;
}
.input::placeholder { color: var(--ink-300); }
.input:focus, .select:focus { outline: none; border-color: var(--brand-500); box-shadow: var(--ring); }
.hint { font-size: var(--fs-sm); color: var(--ink-400); }
.field-error .input { border-color: var(--err); }
.error-text { font-size: var(--fs-sm); color: var(--err); display: flex; align-items: center; gap: 6px; }

.search {
  position: relative; display: flex; align-items: center;
}
.search svg { position: absolute; left: 13px; width: 18px; height: 18px; color: var(--ink-400); pointer-events: none; }
.search .input { padding-left: 40px; }

/* ===================== Tabel ===================== */
.table-wrap { overflow-x: auto; border-radius: var(--r-lg); }
table.data { width: 100%; border-collapse: collapse; font-size: var(--fs-body); }
table.data th {
  text-align: left; font-size: var(--fs-xs); font-weight: 700; letter-spacing: .05em;
  text-transform: uppercase; color: var(--ink-400); padding: 12px var(--s-5);
  border-bottom: 1px solid var(--border); background: var(--surface-2); white-space: nowrap;
}
table.data td { padding: 14px var(--s-5); border-bottom: 1px solid var(--border); vertical-align: middle; }
table.data tbody tr { transition: background .12s; cursor: pointer; }
table.data tbody tr:hover { background: var(--brand-50); }
table.data tbody tr:last-child td { border-bottom: none; }
.cell-strong { font-weight: 600; color: var(--ink-900); }
.cell-sub { font-size: var(--fs-sm); color: var(--ink-500); }
.avatar {
  width: 34px; height: 34px; border-radius: 10px; flex: none; display: grid; place-items: center;
  font-size: var(--fs-sm); font-weight: 700; color: var(--brand-800); background: var(--brand-100);
}

/* ===================== Device / merk-mini ===================== */
.dev-pill { display: inline-flex; align-items: center; gap: 6px; font-size: var(--fs-sm); color: var(--ink-600); }
.dev-ico { width: 26px; height: 26px; border-radius: 8px; display: grid; place-items: center; flex: none; }
.dev-ico svg { width: 15px; height: 15px; }
.ico-solar   { background: var(--data-solar-soft);   color: #a56d17; }
.ico-battery { background: var(--data-battery-soft); color: var(--brand-700); }
.ico-charger { background: var(--data-charger-soft); color: #1c6f7c; }

/* ===================== Charts (SVG) ===================== */
.chart { width: 100%; }
.chart-legend { display: flex; flex-wrap: wrap; gap: var(--s-4); font-size: var(--fs-sm); color: var(--ink-600); }
.legend-item { display: inline-flex; align-items: center; gap: 7px; }
.legend-swatch { width: 11px; height: 11px; border-radius: 3px; flex: none; }
.axis-label { font-size: 11px; fill: var(--ink-400); font-variant-numeric: tabular-nums; }
.grid-line { stroke: var(--border); stroke-width: 1; }
.bar { transition: opacity .15s; }
.bar:hover { opacity: .82; }
.spark-fill { opacity: .16; }

/* Gauge (batterij SoC) */
.gauge-track { stroke: var(--brand-100); }
.gauge-val { stroke: var(--brand-500); stroke-linecap: round; }

/* ===================== Empty / offline states ===================== */
.empty {
  display: flex; flex-direction: column; align-items: center; text-align: center;
  padding: var(--s-12) var(--s-6); gap: var(--s-3);
}
.empty-art {
  width: 68px; height: 68px; border-radius: 20px; display: grid; place-items: center; margin-bottom: var(--s-2);
  background: var(--brand-50); color: var(--brand-400);
}
.empty-art svg { width: 32px; height: 32px; }
.empty.offline .empty-art { background: var(--warn-bg); color: var(--warn); }
.empty h3 { font-size: var(--fs-h3); }
.empty p { color: var(--ink-500); max-width: 380px; }

.banner {
  display: flex; align-items: flex-start; gap: var(--s-3);
  padding: var(--s-4) var(--s-5); border-radius: var(--r-md); font-size: var(--fs-body);
}
.banner svg { width: 20px; height: 20px; flex: none; margin-top: 1px; }
.banner-warn { background: var(--warn-bg); color: #7a5210; border: 1px solid #ecd9a8; }
.banner-info { background: var(--brand-50); color: var(--brand-800); border: 1px solid var(--brand-100); }

/* ===================== Alert-lijst (afwijkingen) ===================== */
.alert-row { display: flex; align-items: center; gap: var(--s-4); padding: var(--s-4) 0; border-bottom: 1px solid var(--border); }
.alert-row:last-child { border-bottom: none; }
.alert-ico { width: 38px; height: 38px; border-radius: 11px; display: grid; place-items: center; flex: none; }
.alert-ico svg { width: 19px; height: 19px; }

/* ===================== Modal ===================== */
.overlay {
  position: fixed; inset: 0; z-index: 50; background: rgba(19,26,22,.42);
  backdrop-filter: blur(3px); display: flex; align-items: center; justify-content: center; padding: var(--s-6);
  animation: fade .18s ease;
}
.modal {
  background: var(--surface); border-radius: var(--r-xl); box-shadow: var(--sh-3);
  width: 100%; max-width: 520px; max-height: 90vh; overflow: auto;
  animation: pop .2s cubic-bezier(.2,.8,.3,1);
}
.modal-head { padding: var(--s-6) var(--s-6) var(--s-4); display: flex; align-items: flex-start; justify-content: space-between; gap: var(--s-4); }
.modal-body { padding: 0 var(--s-6) var(--s-2); display: flex; flex-direction: column; gap: var(--s-4); }
.modal-foot { padding: var(--s-5) var(--s-6) var(--s-6); display: flex; justify-content: flex-end; gap: var(--s-3); }
@keyframes fade { from { opacity: 0; } }
@keyframes pop { from { opacity: 0; transform: translateY(10px) scale(.98); } }

/* ===================== Login ===================== */
.auth-wrap { min-height: 100vh; display: grid; grid-template-columns: 1.05fr .95fr; }
.auth-hero {
  background: linear-gradient(155deg, var(--brand-700), var(--brand-900));
  color: #fff; padding: var(--s-16) var(--s-12); display: flex; flex-direction: column; justify-content: space-between;
  position: relative; overflow: hidden;
}
.auth-hero::after {
  content: ""; position: absolute; right: -120px; top: -80px; width: 420px; height: 420px; border-radius: 50%;
  background: radial-gradient(circle, rgba(58,168,125,.55), transparent 68%);
}
.auth-hero-badge { display: inline-flex; align-items: center; gap: 8px; font-size: var(--fs-sm); font-weight: 600; background: rgba(255,255,255,.14); padding: 6px 12px; border-radius: var(--r-pill); backdrop-filter: blur(6px); align-self: flex-start; }
.auth-panel { display: flex; align-items: center; justify-content: center; padding: var(--s-12); background: var(--cream); }
.auth-card { width: 100%; max-width: 380px; display: flex; flex-direction: column; gap: var(--s-5); }
.role-toggle { display: flex; gap: var(--s-2); background: var(--surface-2); border: 1px solid var(--border); padding: 4px; border-radius: var(--r-md); }
.role-toggle button { flex: 1; border: none; background: none; padding: 9px; border-radius: 9px; font-weight: 600; font-size: var(--fs-sm); color: var(--ink-500); cursor: pointer; min-height: 40px; }
.role-toggle button.active { background: var(--surface); color: var(--brand-800); box-shadow: var(--sh-1); }

.divider { height: 1px; background: var(--border); border: none; margin: var(--s-2) 0; }

/* ===================== Progressbalk (dun) ===================== */
.pbar { height: 8px; border-radius: var(--r-pill); background: var(--brand-100); overflow: hidden; }
.pbar > span { display: block; height: 100%; border-radius: var(--r-pill); background: linear-gradient(90deg, var(--brand-500), var(--brand-400)); }

/* Meta list */
.meta-list { display: grid; grid-template-columns: 1fr 1fr; gap: var(--s-4) var(--s-6); }
.meta-list dt { font-size: var(--fs-sm); color: var(--ink-500); }
.meta-list dd { margin: 2px 0 0; font-weight: 600; }

/* ===================== Responsief ===================== */
@media (max-width: 960px) {
  .auth-wrap { grid-template-columns: 1fr; }
  .auth-hero { display: none; }
  .layout { grid-template-columns: 1fr; }
  .sidebar {
    flex-direction: row; overflow-x: auto; border-right: none; border-bottom: 1px solid var(--border);
    padding: var(--s-3) var(--s-4); gap: var(--s-2);
  }
  .side-label { display: none; }
  .nav-item { white-space: nowrap; width: auto; }
  .nav-item .badge-count { margin-left: var(--s-2); }
}
@media (max-width: 720px) {
  .container { padding: 0 var(--s-4); }
  .hide-sm { display: none !important; }
  .meta-list { grid-template-columns: 1fr; }
  .stat-value { font-size: 1.6rem; }
}

/* Toegankelijkheid: focus zichtbaar overal */
a:focus-visible, .nav-item:focus-visible, .role-toggle button:focus-visible, table.data tbody tr:focus-visible {
  outline: none; box-shadow: var(--ring); border-radius: var(--r-sm);
}
@media (prefers-reduced-motion: reduce) {
  * { animation-duration: .01ms !important; transition-duration: .01ms !important; }
}