:root {
  color-scheme: dark;
  --bg: #07110f;
  --panel: rgba(15, 31, 27, 0.88);
  --panel-strong: #10231e;
  --border: rgba(157, 235, 205, 0.16);
  --text: #effbf6;
  --muted: #94b7aa;
  --accent: #51e6ad;
  --accent-strong: #20bd83;
  --danger: #ff6b72;
  --warning: #f8c86a;
  --shadow: 0 24px 70px rgba(0, 0, 0, 0.32);
}

* { box-sizing: border-box; }

body {
  margin: 0;
  min-height: 100vh;
  background:
    radial-gradient(circle at 12% 5%, rgba(45, 170, 126, 0.18), transparent 34rem),
    radial-gradient(circle at 90% 30%, rgba(37, 102, 86, 0.16), transparent 28rem),
    var(--bg);
  color: var(--text);
  font: 15px/1.5 Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
}

button, input, textarea { font: inherit; }

.shell {
  width: min(1180px, calc(100% - 32px));
  margin: 0 auto;
  padding: 42px 0 64px;
}

header {
  display: flex;
  align-items: flex-start;
  justify-content: space-between;
  gap: 24px;
  margin-bottom: 24px;
}

h1, h2, p { margin-top: 0; }
h1 { margin-bottom: 8px; font-size: clamp(2rem, 5vw, 3.5rem); letter-spacing: -0.045em; }
h2 { margin-bottom: 0; font-size: 1.25rem; letter-spacing: -0.02em; }
.subtitle, .hint, small { color: var(--muted); }
.subtitle { max-width: 700px; margin-bottom: 0; }
.eyebrow { margin-bottom: 5px; color: var(--accent); font: 700 11px/1.2 ui-monospace, SFMono-Regular, Menlo, monospace; letter-spacing: .13em; }

.panel, .metric {
  border: 1px solid var(--border);
  border-radius: 18px;
  background: linear-gradient(145deg, rgba(20, 43, 36, .92), var(--panel));
  box-shadow: var(--shadow);
  backdrop-filter: blur(12px);
}

.panel { padding: 22px; }
.auth-panel { display: grid; grid-template-columns: 1fr auto; gap: 12px; align-items: end; margin-bottom: 16px; }
.auth-panel .hint { grid-column: 1 / -1; margin: 0; }

.status-grid { display: grid; grid-template-columns: repeat(5, 1fr); gap: 12px; margin-bottom: 16px; }
.metric { min-height: 126px; padding: 20px; display: flex; flex-direction: column; }
.metric span { color: var(--muted); font-size: 13px; }
.metric strong { margin: 10px 0 4px; font-size: 1.2rem; }
.metric small { margin-top: auto; }

.signal-summary { display: flex; align-items: baseline; justify-content: space-between; gap: 8px; }
.signal-summary strong { white-space: nowrap; }
.signal-summary em { color: var(--muted); font-size: 11px; font-style: normal; }
.signal-bars { height: 30px; display: flex; align-items: flex-end; gap: 4px; margin: 2px 0 8px; }
.signal-bars i { width: 7px; border-radius: 2px 2px 1px 1px; background: rgba(148, 183, 170, .22); }
.signal-bars i:nth-child(1) { height: 7px; }
.signal-bars i:nth-child(2) { height: 12px; }
.signal-bars i:nth-child(3) { height: 17px; }
.signal-bars i:nth-child(4) { height: 22px; }
.signal-bars i:nth-child(5) { height: 28px; }
.signal-bars[data-level="1"] i:nth-child(-n+1),
.signal-bars[data-level="2"] i:nth-child(-n+2) { background: var(--danger); }
.signal-bars[data-level="3"] i:nth-child(-n+3) { background: var(--warning); }
.signal-bars[data-level="4"] i:nth-child(-n+4),
.signal-bars[data-level="5"] i:nth-child(-n+5) { background: var(--accent); }

.work-grid { display: grid; grid-template-columns: 1.15fr .85fr; gap: 16px; margin-bottom: 16px; }
.panel-title { display: flex; align-items: flex-start; justify-content: space-between; gap: 16px; margin-bottom: 20px; }

label { display: block; margin: 14px 0 7px; color: #cfe7de; font-size: 13px; font-weight: 650; }
input, textarea {
  width: 100%;
  border: 1px solid rgba(174, 237, 213, .2);
  border-radius: 11px;
  background: rgba(4, 16, 13, .68);
  color: var(--text);
  padding: 11px 13px;
  outline: none;
  transition: border-color .15s, box-shadow .15s;
}
input:focus, textarea:focus { border-color: var(--accent); box-shadow: 0 0 0 3px rgba(81, 230, 173, .1); }
textarea { resize: vertical; }

button {
  border: 0;
  border-radius: 11px;
  background: var(--accent);
  color: #042219;
  padding: 11px 15px;
  font-weight: 750;
  cursor: pointer;
  transition: transform .12s, opacity .12s, background .12s;
}
button:hover:not(:disabled) { transform: translateY(-1px); background: #78f2c5; }
button:disabled { cursor: not-allowed; opacity: .38; }
button.secondary { color: var(--text); background: #274a3f; }
button.ghost { color: var(--muted); background: transparent; border: 1px solid var(--border); }
button.success { color: #05271c; background: #7ce9a9; }
button.danger { color: #fff; background: #b83f4a; }

.button-row { display: flex; flex-wrap: wrap; gap: 9px; margin-top: 16px; }
.button-row.compact { margin-top: 9px; }
.hint { margin: 14px 0 0; font-size: 12px; }
.chip, .badge { border: 1px solid var(--border); border-radius: 999px; padding: 5px 9px; font-size: 12px; }
.chip { color: var(--accent); background: rgba(81, 230, 173, .08); }
.badge { white-space: nowrap; }
.badge.ok { color: var(--accent); background: rgba(81, 230, 173, .1); }
.badge.error { color: #ffabb0; background: rgba(255, 107, 114, .1); }
.badge.neutral { color: var(--muted); background: rgba(255, 255, 255, .03); }

.diagnostics pre {
  min-height: 180px;
  max-height: 360px;
  overflow: auto;
  margin: 0;
  border-radius: 12px;
  background: rgba(1, 9, 7, .72);
  color: #a8d6c5;
  padding: 14px;
  white-space: pre-wrap;
  word-break: break-word;
  font: 12px/1.55 ui-monospace, SFMono-Regular, Menlo, monospace;
}

.inbox-title { display: flex; align-items: center; justify-content: space-between; margin-top: 22px; }
.inbox-title button { padding: 6px 10px; }
.inbox { display: grid; gap: 8px; margin-top: 10px; max-height: 260px; overflow: auto; }
.sms-item { border: 1px solid var(--border); border-radius: 10px; padding: 10px 11px; background: rgba(3, 15, 12, .5); }
.sms-item-head { display: flex; justify-content: space-between; gap: 12px; color: var(--muted); font-size: 11px; }
.sms-item p { margin: 7px 0 0; white-space: pre-wrap; word-break: break-word; }

@media (max-width: 900px) {
  .status-grid { grid-template-columns: repeat(2, 1fr); }
  .work-grid { grid-template-columns: 1fr; }
}

@media (max-width: 600px) {
  .shell { width: min(100% - 20px, 1180px); padding-top: 24px; }
  header { flex-direction: column; }
  .auth-panel { grid-template-columns: 1fr; }
  .auth-panel .hint { grid-column: auto; }
  .status-grid { grid-template-columns: 1fr; }
  .panel, .metric { border-radius: 14px; }
  .button-row button { flex: 1 1 auto; }
}