:root {
  --bg: #0f1419;
  --bg2: #171e27;
  --ink: #eef2f6;
  --muted: #8a97a8;
  --accent: #3dcea8;
  --accent-ink: #06251c;
  --warn: #ff6a45;
  --warn-soft: rgba(255, 106, 69, 0.16);
  --free: #6ea8ff;
  --line: rgba(238, 242, 246, 0.1);
  --surface: rgba(255, 255, 255, 0.03);
  --font: "Atkinson Hyperlegible", system-ui, sans-serif;
  --display: "Anybody", "Atkinson Hyperlegible", sans-serif;
  --mono: "IBM Plex Mono", ui-monospace, monospace;
}

* { box-sizing: border-box; }
html, body { margin: 0; min-height: 100%; }
body {
  font-family: var(--font);
  color: var(--ink);
  background: var(--bg);
  line-height: 1.5;
}

.atmosphere {
  position: fixed;
  inset: 0;
  z-index: -1;
  overflow: hidden;
  background:
    linear-gradient(180deg, rgba(15, 20, 25, 0.2), var(--bg) 72%),
    repeating-linear-gradient(
      -18deg,
      transparent,
      transparent 22px,
      rgba(61, 206, 168, 0.035) 22px,
      rgba(61, 206, 168, 0.035) 23px
    ),
    radial-gradient(ellipse 70% 55% at 85% 0%, rgba(110, 168, 255, 0.18), transparent 55%),
    radial-gradient(ellipse 55% 45% at 8% 90%, rgba(61, 206, 168, 0.14), transparent 50%),
    linear-gradient(160deg, var(--bg), var(--bg2));
}
.atmosphere::after {
  content: "";
  position: absolute;
  left: 0;
  right: 0;
  bottom: 12%;
  height: min(28vh, 220px);
  background: linear-gradient(
    90deg,
    #3dcea8 0%,
    #3dcea8 28%,
    #6ea8ff 28%,
    #6ea8ff 46%,
    #ffb35c 46%,
    #ffb35c 67%,
    #ff7a59 67%,
    #ff7a59 82%,
    rgba(238, 242, 246, 0.12) 82%,
    rgba(238, 242, 246, 0.12) 100%
  );
  opacity: 0.55;
  mask-image: linear-gradient(90deg, transparent, #000 8%, #000 92%, transparent);
  animation: slicePulse 8s ease-in-out infinite alternate;
}
@keyframes slicePulse {
  from { transform: translateY(0) scaleY(1); opacity: 0.45; }
  to { transform: translateY(-6px) scaleY(1.04); opacity: 0.65; }
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  padding: 1rem 1.5rem;
  border-bottom: 1px solid var(--line);
  backdrop-filter: blur(8px);
}
.brand {
  font-family: var(--display);
  font-weight: 750;
  font-stretch: 90%;
  color: var(--ink);
  text-decoration: none;
  letter-spacing: -0.03em;
  font-size: 1.15rem;
}
.top nav { display: flex; gap: 0.75rem; align-items: center; }
.top nav a:not(.btn) { color: var(--muted); text-decoration: none; font-size: 0.95rem; }

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  border: none;
  cursor: pointer;
  text-decoration: none;
  font: inherit;
  font-weight: 700;
  padding: 0.65rem 1.1rem;
  border-radius: 2px;
  transition: transform 0.15s ease, background 0.15s ease;
}
.btn:hover:not(:disabled) { transform: translateY(-1px); }
.btn.buy { background: var(--accent); color: var(--accent-ink); }
.btn.ghost {
  background: transparent;
  color: var(--ink);
  border: 1px solid var(--line);
}
.btn.warn {
  background: transparent;
  color: var(--warn);
  border: 1px solid rgba(255, 106, 69, 0.45);
}
.btn:disabled { opacity: 0.45; cursor: not-allowed; transform: none; }

.hero {
  min-height: calc(100vh - 4rem);
  display: flex;
  flex-direction: column;
  justify-content: center;
  padding: 3rem 1.5rem 4rem;
  max-width: 42rem;
  animation: riseIn 0.7s ease both;
}
@keyframes riseIn {
  from { opacity: 0; transform: translateY(14px); }
  to { opacity: 1; transform: none; }
}
.brand-hero {
  font-family: var(--display);
  font-weight: 800;
  font-stretch: 85%;
  font-size: clamp(2.8rem, 10vw, 4.6rem);
  letter-spacing: -0.05em;
  margin: 0 0 1rem;
  line-height: 0.92;
}
.brand-hero span {
  display: inline-block;
  color: var(--accent);
  border-bottom: 0.12em solid var(--accent);
  padding-bottom: 0.02em;
}
.hero h1 {
  font-size: clamp(1.2rem, 2.8vw, 1.55rem);
  font-weight: 400;
  margin: 0 0 0.75rem;
  max-width: 24ch;
  letter-spacing: -0.01em;
}
.lede { color: var(--muted); margin: 0 0 1.75rem; max-width: 34ch; }
.cta-row { display: flex; flex-wrap: wrap; gap: 0.75rem; }

.strip {
  padding: 2.5rem 1.5rem 3rem;
  border-top: 1px solid var(--line);
  max-width: 42rem;
}
.strip h2 {
  font-family: var(--display);
  font-stretch: 90%;
  margin: 0 0 1rem;
  letter-spacing: -0.03em;
}
.strip ul { margin: 0; padding-left: 1.1rem; color: var(--muted); }
.strip li { margin-bottom: 0.4rem; }

.foot {
  padding: 1.5rem;
  border-top: 1px solid var(--line);
  color: var(--muted);
  font-size: 0.9rem;
}
.foot a { color: var(--accent); }

/* —— App —— */
.app-body { background: var(--bg); }
.app-body .atmosphere::after { bottom: auto; top: 0; height: 6px; opacity: 0.8; animation: none; }

.workspace {
  max-width: 44rem;
  margin: 0 auto;
  padding: 1.75rem 1.5rem 3rem;
  display: flex;
  flex-direction: column;
  gap: 1.25rem;
}

.status {
  display: flex;
  align-items: center;
  gap: 0.65rem;
  color: var(--muted);
  font-size: 0.9rem;
  margin: 0;
}
.badge {
  font-family: var(--mono);
  font-size: 0.72rem;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.2rem 0.45rem;
  border: 1px solid var(--line);
  color: var(--muted);
}
.badge.on {
  color: var(--accent-ink);
  background: var(--accent);
  border-color: var(--accent);
}

.capacity-panel {
  display: grid;
  gap: 1rem;
}
.capacity-head {
  display: grid;
  grid-template-columns: 1fr auto;
  gap: 1rem;
  align-items: end;
}
label {
  display: flex;
  flex-direction: column;
  gap: 0.35rem;
  font-size: 0.85rem;
  color: var(--muted);
}
input, textarea {
  font: inherit;
  color: var(--ink);
  background: var(--surface);
  border: 1px solid var(--line);
  border-radius: 2px;
  padding: 0.7rem 0.8rem;
}
input[type="number"] { font-family: var(--mono); }
input:focus, textarea:focus {
  outline: 2px solid rgba(61, 206, 168, 0.45);
  outline-offset: 1px;
}

.meter-block { display: grid; gap: 0.55rem; }
.meter-meta {
  display: flex;
  justify-content: space-between;
  gap: 1rem;
  flex-wrap: wrap;
  font-family: var(--mono);
  font-size: 0.82rem;
}
.meter-meta .used { color: var(--accent); }
.meter-meta .free { color: var(--free); }
.meter-meta .over { color: var(--warn); font-weight: 700; }

.meter {
  position: relative;
  height: 28px;
  background: rgba(255, 255, 255, 0.05);
  border: 1px solid var(--line);
  overflow: hidden;
  display: flex;
}
.meter-seg {
  height: 100%;
  transition: width 0.35s cubic-bezier(0.22, 1, 0.36, 1);
  min-width: 0;
}
.meter.overloaded {
  box-shadow: inset 0 0 0 1px var(--warn);
  animation: warnFlash 1.2s ease-in-out infinite;
}
@keyframes warnFlash {
  0%, 100% { box-shadow: inset 0 0 0 1px rgba(255, 106, 69, 0.35); }
  50% { box-shadow: inset 0 0 0 1px var(--warn); }
}

.warning {
  display: none;
  margin: 0;
  padding: 0.75rem 0.9rem;
  background: var(--warn-soft);
  border-left: 3px solid var(--warn);
  color: #ffc4b5;
  font-size: 0.92rem;
}
.warning.show { display: block; }

.clients-head {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 0.75rem;
}
.clients-head h2 {
  font-family: var(--display);
  font-stretch: 90%;
  font-size: 1.35rem;
  margin: 0;
  letter-spacing: -0.03em;
}

.client-list {
  display: flex;
  flex-direction: column;
  gap: 0.65rem;
}
.client-row {
  display: grid;
  grid-template-columns: 12px 1fr 6.5rem 4.5rem auto;
  gap: 0.55rem;
  align-items: end;
  padding: 0.75rem;
  background: var(--surface);
  border: 1px solid var(--line);
  animation: rowIn 0.35s ease both;
}
@keyframes rowIn {
  from { opacity: 0; transform: translateX(-8px); }
  to { opacity: 1; transform: none; }
}
.client-row .pct {
  font-family: var(--mono);
  font-size: 0.85rem;
  color: var(--muted);
  padding-bottom: 0.75rem;
  text-align: right;
}
.client-row .swatch {
  width: 10px;
  height: 10px;
  border-radius: 1px;
  margin-bottom: 0.85rem;
  align-self: end;
}
.client-row button.remove {
  align-self: end;
  margin-bottom: 0.15rem;
  padding: 0.55rem 0.7rem;
}

.empty {
  margin: 0;
  color: var(--muted);
  font-size: 0.9rem;
}

.legend {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem 1.25rem;
  margin: 0;
  padding: 0;
  list-style: none;
  font-size: 0.85rem;
  color: var(--muted);
}
.legend li {
  display: flex;
  align-items: center;
  gap: 0.4rem;
}
.legend i {
  display: inline-block;
  width: 12px;
  height: 12px;
  border-radius: 1px;
}

.actions {
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
  padding-top: 0.25rem;
}
.toast {
  font-size: 0.85rem;
  color: var(--accent);
  margin: 0;
  min-height: 1.2em;
}

dialog {
  border: 1px solid var(--line);
  border-radius: 2px;
  background: var(--bg2);
  color: var(--ink);
  padding: 1.25rem;
  max-width: 22rem;
}
dialog::backdrop { background: rgba(0, 0, 0, 0.6); }
dialog h2 {
  font-family: var(--display);
  font-stretch: 90%;
  margin: 0 0 0.5rem;
  font-size: 1.35rem;
  letter-spacing: -0.03em;
}
dialog p { color: var(--muted); font-size: 0.9rem; }
.err { color: #ff8f8f; font-size: 0.85rem; }

@media (max-width: 640px) {
  .top { flex-wrap: wrap; gap: 0.75rem; }
  .capacity-head { grid-template-columns: 1fr; }
  .client-row {
    grid-template-columns: 12px 1fr auto;
    grid-template-areas:
      "swatch name name"
      "swatch hours pct"
      ". remove remove";
  }
  .client-row .swatch { grid-area: swatch; margin: 0; align-self: center; }
  .client-row label:nth-of-type(1) { grid-area: name; }
  .client-row label:nth-of-type(2) { grid-area: hours; }
  .client-row .pct { grid-area: pct; align-self: end; }
  .client-row button.remove { grid-area: remove; justify-self: end; margin: 0; }
}