:root {
  --paper: #fffaf0;
  --paper-deep: #f4e8d0;
  --ink: #17202f;
  --muted: #667085;
  --line: #dfd5c4;
  --teal: #0f7887;
  --teal-dark: #075b66;
  --yellow: #f4bf45;
  --rose: #ef7465;
  --soft-red: #fff0ed;
  --mint: #d8eee4;
  --white: #ffffff;
  --radius: 8px;
  --shadow: 0 16px 38px rgba(65, 52, 35, 0.14);
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  color: var(--ink);
  background:
    linear-gradient(90deg, rgba(23, 32, 47, 0.035) 1px, transparent 1px),
    linear-gradient(180deg, rgba(23, 32, 47, 0.035) 1px, transparent 1px),
    linear-gradient(135deg, #fffaf0, #eef8f2 48%, #f8f1df);
  background-size: 28px 28px, 28px 28px, auto;
}

button,
input,
select {
  font: inherit;
}

.app-shell {
  width: min(1240px, calc(100% - 28px));
  margin: 0 auto;
  padding: 24px 0 34px;
}

.topbar {
  display: grid;
  grid-template-columns: minmax(0, 1fr) minmax(190px, 280px);
  gap: 16px;
  align-items: stretch;
}

.topbar > div,
.meter,
.add-strip {
  background: rgba(255, 255, 255, 0.86);
  border: 1px solid rgba(223, 213, 196, 0.9);
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.topbar > div {
  padding: 24px;
}

.eyebrow {
  width: fit-content;
  margin: 0 0 10px;
  padding: 6px 10px;
  color: var(--teal-dark);
  font-size: 0.75rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0;
  background: var(--mint);
  border-radius: 999px;
}

h1,
h2,
p {
  margin-top: 0;
}

h1 {
  max-width: 760px;
  margin-bottom: 0;
  font-size: clamp(2.05rem, 5vw, 4.8rem);
  line-height: 0.95;
  letter-spacing: 0;
}

h2 {
  margin-bottom: 4px;
  font-size: clamp(1.25rem, 2vw, 1.7rem);
}

.meter {
  display: flex;
  flex-direction: column;
  justify-content: center;
  gap: 4px;
  padding: 22px;
  background: linear-gradient(150deg, #e8f7f6, #fff3c9);
}

.meter span,
.meter small {
  color: var(--muted);
  font-weight: 700;
}

.meter strong {
  font-size: clamp(2.3rem, 6vw, 4rem);
  line-height: 1;
}

.add-strip {
  display: grid;
  grid-template-columns: auto minmax(180px, 1fr) auto;
  gap: 12px;
  align-items: center;
  margin-top: 16px;
  padding: 14px;
}

.add-strip label {
  color: var(--muted);
  font-size: 0.9rem;
  font-weight: 800;
}

select,
input {
  width: 100%;
  min-height: 40px;
  padding: 9px 10px;
  color: var(--ink);
  background: var(--white);
  border: 1px solid var(--line);
  border-radius: var(--radius);
  outline: none;
}

select:focus,
input:focus {
  border-color: var(--teal);
  box-shadow: 0 0 0 3px rgba(15, 120, 135, 0.16);
}

button {
  min-height: 40px;
  padding: 9px 15px;
  color: #fff;
  font-weight: 900;
  background: var(--teal);
  border: 0;
  border-radius: var(--radius);
  cursor: pointer;
  transition: background 150ms ease, transform 150ms ease;
}

button:hover {
  background: var(--teal-dark);
  transform: translateY(-1px);
}

.picture-grid {
  display: grid;
  grid-template-columns: repeat(auto-fill, minmax(168px, 1fr));
  gap: 14px;
  margin-top: 16px;
}

.appliance-card {
  position: relative;
  display: grid;
  gap: 10px;
  padding: 10px;
  background: rgba(255, 255, 255, 0.93);
  border: 1px solid rgba(223, 213, 196, 0.95);
  border-radius: var(--radius);
  box-shadow: 0 9px 22px rgba(65, 52, 35, 0.1);
  transition: opacity 160ms ease, transform 160ms ease, border-color 160ms ease;
}

.appliance-card.is-off {
  opacity: 0.62;
  border-color: rgba(102, 112, 133, 0.26);
}

.appliance-card.is-off .appliance-picture,
.appliance-card.is-off .name-input,
.appliance-card.is-off .mini-fields {
  filter: grayscale(0.65);
}

.picture-frame {
  position: relative;
  display: grid;
  place-items: center;
  aspect-ratio: 1;
  overflow: hidden;
  background:
    radial-gradient(circle at 45% 35%, rgba(244, 191, 69, 0.18), transparent 45%),
    #fffdf7;
  border: 1px solid rgba(223, 213, 196, 0.78);
  border-radius: var(--radius);
}

.appliance-picture {
  width: 100%;
  height: 100%;
  background-image: var(--sprite-image);
  background-repeat: no-repeat;
  background-size: var(--sprite-size-x) var(--sprite-size-y);
  background-position: var(--sprite-x) var(--sprite-y);
  transform: scale(1.08);
}

.remove-btn {
  display: grid;
  place-items: center;
  min-height: 28px;
  padding: 5px 9px;
  color: #8f2f25;
  font-size: 0.72rem;
  font-weight: 900;
  background: var(--soft-red);
  border: 1px solid rgba(239, 116, 101, 0.38);
  border-radius: var(--radius);
}

.power-toggle {
  position: absolute;
  left: 8px;
  top: 8px;
  display: grid;
  grid-template-columns: 18px auto;
  gap: 5px;
  align-items: center;
  min-height: 30px;
  padding: 4px 9px 4px 5px;
  color: var(--teal-dark);
  font-size: 0.72rem;
  font-weight: 900;
  background: rgba(255, 255, 255, 0.9);
  border: 1px solid rgba(15, 120, 135, 0.24);
  border-radius: 999px;
  box-shadow: 0 5px 12px rgba(65, 52, 35, 0.12);
}

.power-toggle:hover {
  color: #fff;
  background: var(--teal);
}

.power-toggle[aria-pressed="false"] {
  color: #8f2f25;
  background: var(--soft-red);
  border-color: rgba(239, 116, 101, 0.36);
}

.toggle-knob {
  width: 18px;
  height: 18px;
  background: var(--teal);
  border-radius: 999px;
  box-shadow: inset 0 -2px 3px rgba(0, 0, 0, 0.15);
}

.power-toggle[aria-pressed="false"] .toggle-knob {
  background: var(--rose);
}

.remove-btn:hover {
  color: #fff;
  background: var(--rose);
}

.name-input {
  min-height: 36px;
  padding: 7px 8px;
  font-size: 0.93rem;
  font-weight: 850;
  text-align: center;
  background: transparent;
  border-color: transparent;
}

.name-input:focus {
  background: #fff;
}

.mini-fields {
  display: grid;
  grid-template-columns: repeat(2, minmax(0, 1fr));
  gap: 7px;
}

.mini-field {
  display: grid;
  gap: 3px;
}

.mini-field label {
  color: var(--muted);
  font-size: 0.66rem;
  font-weight: 900;
  text-transform: uppercase;
  letter-spacing: 0;
}

.mini-field input,
.mini-field select {
  min-height: 34px;
  padding: 6px 7px;
  font-size: 0.78rem;
}

.usage-field {
  grid-column: 1 / -1;
  display: grid;
  grid-template-columns: minmax(0, 1fr) 92px;
  gap: 7px;
}

.card-footer {
  display: flex;
  justify-content: space-between;
  align-items: end;
  gap: 8px;
  padding-top: 8px;
  border-top: 1px dashed rgba(102, 112, 133, 0.26);
}

.card-total {
  display: grid;
  gap: 2px;
  color: var(--muted);
  font-size: 0.74rem;
  font-weight: 850;
}

.card-total strong {
  color: var(--teal-dark);
}

.appliance-card.is-off .card-total strong {
  color: #8f2f25;
}

.toast {
  position: fixed;
  right: 22px;
  bottom: 22px;
  z-index: 20;
  max-width: min(360px, calc(100vw - 28px));
  padding: 13px 15px;
  color: #083f46;
  font-size: 0.92rem;
  font-weight: 850;
  background: #e8f7f2;
  border: 1px solid rgba(15, 120, 135, 0.22);
  border-radius: var(--radius);
  box-shadow: 0 16px 36px rgba(65, 52, 35, 0.2);
  opacity: 0;
  pointer-events: none;
  transform: translateY(14px);
  transition: opacity 180ms ease, transform 180ms ease;
}

.toast.is-visible {
  opacity: 1;
  transform: translateY(0);
}

@media (max-width: 760px) {
  .topbar,
  .add-strip {
    grid-template-columns: 1fr;
  }

  .picture-grid {
    grid-template-columns: repeat(auto-fill, minmax(145px, 1fr));
  }
}

@media (max-width: 460px) {
  .app-shell {
    width: min(100% - 18px, 1240px);
    padding-top: 12px;
  }

  .topbar > div,
  .meter,
  .add-strip {
    padding: 14px;
  }

  .picture-grid {
    grid-template-columns: repeat(2, minmax(0, 1fr));
    gap: 9px;
  }

  .appliance-card {
    padding: 8px;
  }

  .toast {
    right: 9px;
    bottom: 9px;
  }
}