/* Alpha ESS — Nordic-minimal design system.
   Cool birch neutrals, spruce accent, monospace instrument readouts. */

:root {
  --bg: #eceee9;
  --surface: #fafbf8;
  --surface-2: #f2f4ef;
  --text: #1a1d1a;
  --muted: #676c65;
  --faint: #9aa096;
  --border: #dde0d9;
  --border-strong: #cdd1c8;
  --accent: #35563f;
  --accent-soft: #e4ece5;

  --cheap: #4e7a5b;
  --expensive: #a4463a;
  --charge: #3e6b8b;
  --discharge: #a1742c;
  --alert: #a4463a;

  --radius: 10px;
  --radius-sm: 7px;
  --shadow: 0 1px 2px rgba(26, 29, 26, 0.04);

  --font-display: "Familjen Grotesk", ui-sans-serif, system-ui, sans-serif;
  --font-body: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, sans-serif;
  --font-mono: "IBM Plex Mono", ui-monospace, "SF Mono", Menlo, monospace;
}

@media (prefers-color-scheme: dark) {
  :root {
    --bg: #14161a;
    --surface: #1c1f24;
    --surface-2: #232730;
    --text: #e6e8e3;
    --muted: #969c94;
    --faint: #6b7169;
    --border: #2a2e34;
    --border-strong: #363b43;
    --accent: #7ba888;
    --accent-soft: #22302a;

    --cheap: #6fae82;
    --expensive: #cc6b5c;
    --charge: #6b9bc2;
    --discharge: #c99a4e;
    --alert: #cc6b5c;
    --shadow: 0 1px 2px rgba(0, 0, 0, 0.2);
  }
}

* { box-sizing: border-box; }

html { -webkit-text-size-adjust: 100%; }

body {
  margin: 0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  font-size: 15px;
  line-height: 1.5;
  -webkit-font-smoothing: antialiased;
  text-rendering: optimizeLegibility;
}

h1, h2, h3 {
  font-family: var(--font-display);
  font-weight: 600;
  letter-spacing: -0.01em;
  margin: 0;
}

.mono { font-family: var(--font-mono); font-feature-settings: "tnum" 1; }

a { color: var(--accent); text-decoration: none; }

/* ---- Layout shell ---- */
.shell {
  max-width: 640px;
  margin: 0 auto;
  padding: 20px 18px 64px;
}

.topbar {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  padding: 6px 0 20px;
}
.brand {
  display: flex;
  align-items: baseline;
  gap: 9px;
}
.brand .dot {
  width: 9px; height: 9px; border-radius: 50%;
  background: var(--accent);
  align-self: center;
}
.brand h1 { font-size: 17px; }
.brand .sub {
  font-size: 12px; color: var(--muted);
  font-family: var(--font-mono); letter-spacing: 0.02em;
}

/* ---- Badges ---- */
.badge {
  display: inline-flex; align-items: center; gap: 6px;
  font-size: 11.5px; font-family: var(--font-mono);
  text-transform: uppercase; letter-spacing: 0.06em;
  padding: 4px 9px; border-radius: 100px;
  border: 1px solid var(--border-strong);
  color: var(--muted); background: var(--surface);
}
.badge .pip { width: 6px; height: 6px; border-radius: 50%; background: currentColor; }
.badge.mode-observe { color: var(--charge); border-color: color-mix(in srgb, var(--charge) 40%, var(--border)); }
.badge.mode-dry { color: var(--discharge); border-color: color-mix(in srgb, var(--discharge) 40%, var(--border)); }
.badge.mode-automatic { color: var(--cheap); border-color: color-mix(in srgb, var(--cheap) 40%, var(--border)); }
.badge.alert { color: var(--alert); border-color: color-mix(in srgb, var(--alert) 45%, var(--border)); }

/* ---- Cards ---- */
.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
  padding: 18px;
  margin-bottom: 16px;
}
.card > .card-head {
  display: flex; align-items: baseline; justify-content: space-between;
  margin-bottom: 14px;
}
.card-head h2 { font-size: 13px; text-transform: uppercase; letter-spacing: 0.07em; color: var(--muted); font-weight: 600; }
.card-head .meta { font-size: 12px; color: var(--faint); font-family: var(--font-mono); }

/* ---- Status grid ---- */
.status-grid {
  display: grid;
  grid-template-columns: repeat(2, 1fr);
  gap: 1px;
  background: var(--border);
  border-radius: var(--radius-sm);
  overflow: hidden;
}
.stat {
  background: var(--surface);
  padding: 13px 14px;
}
.stat .k { font-size: 11.5px; color: var(--muted); letter-spacing: 0.02em; }
.stat .v { font-family: var(--font-mono); font-size: 20px; margin-top: 3px; font-feature-settings: "tnum" 1; }
.stat .v.empty { color: var(--faint); font-size: 15px; }
.stat .u { font-size: 12px; color: var(--muted); margin-left: 2px; }
.stat .note { font-size: 11px; color: var(--faint); font-family: var(--font-mono); letter-spacing: 0.02em; margin-top: 1px; }

.card-head .meta.stale { color: var(--alert); }

/* ---- Price ribbon (signature) ---- */
.ribbon-wrap { position: relative; margin: 4px 0 2px; }
.ribbon {
  display: flex; align-items: flex-end; gap: 1px;
  height: 96px;
  padding-bottom: 0;
}
.ribbon .bar {
  flex: 1 1 0;
  min-width: 0;
  border-radius: 1.5px 1.5px 0 0;
  background: var(--bar-color, var(--border-strong));
  opacity: 0.92;
}
.ribbon .bar.current {
  outline: 1.5px solid var(--text);
  outline-offset: 1px;
  opacity: 1;
}
.ribbon-axis {
  display: flex; justify-content: space-between;
  font-family: var(--font-mono); font-size: 10.5px; color: var(--faint);
  margin-top: 7px;
}
.ribbon-scale {
  display: flex; justify-content: space-between; align-items: center;
  font-size: 11.5px; color: var(--muted); margin-top: 10px;
}
.scale-key { display: flex; align-items: center; gap: 7px; }
.scale-bar {
  width: 68px; height: 6px; border-radius: 3px;
  background: linear-gradient(90deg, var(--cheap), color-mix(in srgb, var(--cheap) 35%, var(--expensive)), var(--expensive));
}

/* ---- Summary chips ---- */
.chips { display: grid; grid-template-columns: repeat(3, 1fr); gap: 10px; margin-top: 16px; }
.chip {
  border: 1px solid var(--border); border-radius: var(--radius-sm);
  padding: 10px 11px; background: var(--surface-2);
}
.chip .k { font-size: 10.5px; text-transform: uppercase; letter-spacing: 0.05em; color: var(--muted); }
.chip .t { font-family: var(--font-mono); font-size: 12px; color: var(--muted); margin-top: 5px; }
.chip .v { font-family: var(--font-mono); font-size: 16px; margin-top: 1px; }
.chip.cheap .v { color: var(--cheap); }
.chip.pricey .v { color: var(--expensive); }

/* ---- Hourly table ---- */
.hours { width: 100%; }
.hrow {
  display: grid;
  grid-template-columns: 52px 1fr 74px;
  align-items: center;
  gap: 12px;
  padding: 9px 0;
  border-top: 1px solid var(--border);
}
.hrow:first-child { border-top: 0; }
.hrow.now { background: var(--accent-soft); margin: 0 -18px; padding-left: 18px; padding-right: 18px; border-radius: 4px; border-top-color: transparent; }
.hrow .h { font-family: var(--font-mono); font-size: 13px; }
.hrow .h .np { display: block; font-size: 9.5px; color: var(--faint); letter-spacing: 0.04em; }
.hrow .track {
  position: relative; height: 20px;
  background: var(--surface-2); border-radius: 4px; overflow: hidden;
}
.hrow .fill {
  position: absolute; inset: 0 auto 0 0;
  border-radius: 4px;
  background: var(--bar-color, var(--border-strong));
  opacity: 0.85;
}
.hrow .price {
  font-family: var(--font-mono); font-size: 13px; text-align: right;
  font-feature-settings: "tnum" 1;
}
.hrow .price small { color: var(--muted); font-size: 10px; }

/* ---- Controls / buttons ---- */
.btn {
  display: inline-flex; align-items: center; justify-content: center; gap: 7px;
  font-family: var(--font-body); font-size: 14px; font-weight: 500;
  padding: 10px 16px; min-height: 44px;
  border-radius: var(--radius-sm); cursor: pointer;
  border: 1px solid var(--border-strong); background: var(--surface); color: var(--text);
  white-space: nowrap;
}
.btn:hover { border-color: var(--accent); }
.btn.primary { background: var(--accent); border-color: var(--accent); color: #fff; }
.btn.ghost { background: transparent; border: 1px solid var(--border); color: var(--muted); }
.btn.full { width: 100%; }

/* ---- Empty state ---- */
.empty-state {
  text-align: center; padding: 26px 16px; color: var(--muted);
}
.empty-state .big { font-family: var(--font-mono); font-size: 13px; color: var(--faint); }

/* ---- Login ---- */
.auth {
  min-height: 100dvh;
  display: flex; flex-direction: column; justify-content: center;
  max-width: 380px; margin: 0 auto; padding: 32px 22px;
}
.auth .brand { margin-bottom: 30px; }
.auth h2 { font-size: 15px; color: var(--muted); font-weight: 500; margin-bottom: 22px; font-family: var(--font-body); }
.field { margin-bottom: 14px; }
.field label {
  display: block; font-size: 12px; color: var(--muted);
  letter-spacing: 0.02em; margin-bottom: 6px;
}
.field input[type="email"],
.field input[type="password"] {
  width: 100%; min-height: 46px;
  padding: 11px 13px;
  font-family: var(--font-mono); font-size: 14px;
  color: var(--text); background: var(--surface);
  border: 1px solid var(--border-strong); border-radius: var(--radius-sm);
}
.field input:focus { outline: 2px solid var(--accent); outline-offset: 1px; border-color: var(--accent); }
.remember { display: flex; align-items: center; gap: 8px; font-size: 13px; color: var(--muted); margin: 4px 0 20px; }
.error {
  background: color-mix(in srgb, var(--alert) 12%, var(--surface));
  border: 1px solid color-mix(in srgb, var(--alert) 35%, var(--border));
  color: var(--alert);
  font-size: 13px; padding: 9px 12px; border-radius: var(--radius-sm);
  margin-bottom: 16px;
}
.auth .foot { margin-top: 26px; font-size: 11.5px; color: var(--faint); font-family: var(--font-mono); text-align: center; }

/* ---- Battery plan (dry run) ---- */
.badge.mode-dry_run { color: var(--discharge); border-color: color-mix(in srgb, var(--discharge) 40%, var(--border)); }

.plan-totals {
  display: flex; flex-wrap: wrap; gap: 6px 16px;
  font-size: 13px; color: var(--muted);
  margin-bottom: 14px;
}
.plan-totals .gain { color: var(--cheap); }
.plan-totals .loss { color: var(--expensive); }

.plan-periods { display: flex; flex-direction: column; gap: 6px; }
.pp {
  border: 1px solid var(--border);
  border-left: 3px solid var(--faint);
  border-radius: var(--radius-sm);
  background: var(--surface-2);
}
.pp.ptype-charge { border-left-color: var(--charge); }
.pp.ptype-discharge_for_load { border-left-color: var(--discharge); }
.pp.ptype-export { border-left-color: var(--cheap); }
.pp summary {
  display: flex; align-items: baseline; gap: 10px; flex-wrap: wrap;
  padding: 9px 12px; cursor: pointer; list-style: none;
}
.pp summary::-webkit-details-marker { display: none; }
.pp-time { font-size: 13px; }
.pp-type {
  font-size: 11px; text-transform: uppercase; letter-spacing: 0.05em;
  color: var(--muted);
}
.pp.ptype-charge .pp-type { color: var(--charge); }
.pp.ptype-discharge_for_load .pp-type { color: var(--discharge); }
.pp.ptype-export .pp-type { color: var(--cheap); }
.pp-nums { margin-left: auto; font-size: 12px; color: var(--muted); }
.pp-nums small { color: var(--faint); }
.pp-reason {
  margin: 0; padding: 0 12px 10px;
  font-size: 12.5px; color: var(--muted); line-height: 1.55;
}

.plan-summary {
  margin: 14px 0 0; font-size: 12px; color: var(--faint);
  font-family: var(--font-mono); line-height: 1.6;
}

.foot-note {
  margin: 16px 0 0; padding-top: 12px;
  border-top: 1px solid var(--border);
  font-size: 12px; color: var(--muted); line-height: 1.6;
}
.foot-note strong { color: var(--text); font-weight: 600; }

/* ---- Focus + motion floors ---- */
:focus-visible { outline: 2px solid var(--accent); outline-offset: 2px; }
@media (prefers-reduced-motion: reduce) {
  * { animation: none !important; transition: none !important; }
}