/* Mercatus Cartel Robot — minimal R/B/W, mobile-first, no oversized logo */

:root {
  --mm-black: #0a0a0a;
  --mm-white: #f5f5f5;
  --mm-muted: #8a8a8a;
  --mm-red: #c8102e;
  --mm-line: #222;
  --mm-safe-b: env(safe-area-inset-bottom, 0px);
  --mm-safe-t: env(safe-area-inset-top, 0px);
  --mm-safe-l: env(safe-area-inset-left, 0px);
  --mm-safe-r: env(safe-area-inset-right, 0px);
}

*, *::before, *::after { box-sizing: border-box; }

html, body {
  margin: 0;
  min-height: 100%;
  min-height: 100dvh;
  background: var(--mm-black);
  -webkit-text-size-adjust: 100%;
}

/* Shell: full-bleed on phones, centered card on large screens */
.mm-shell {
  position: relative;
  z-index: 1;
  min-height: 100vh;
  min-height: 100dvh;
  display: flex;
  align-items: stretch;
  justify-content: center;
  padding:
    max(0.5rem, var(--mm-safe-t))
    max(0.5rem, var(--mm-safe-r))
    max(0.5rem, var(--mm-safe-b))
    max(0.5rem, var(--mm-safe-l));
}

@media (min-width: 640px) {
  .mm-shell {
    align-items: center;
    padding: 1.5rem;
  }
}

.mm-robot {
  display: flex;
  flex-direction: column;
  width: 100%;
  max-width: 420px;
  height: calc(100dvh - max(0.5rem, var(--mm-safe-t)) - max(0.5rem, var(--mm-safe-b)) - 1rem);
  max-height: 100%;
  background: rgba(10, 10, 10, 0.92);
  border: 1px solid var(--mm-line);
  color: var(--mm-white);
  font-family: system-ui, -apple-system, "Segoe UI", sans-serif;
}

@media (min-width: 640px) {
  .mm-robot {
    height: min(640px, calc(100dvh - 3rem));
    border-radius: 2px;
  }
}

/* Header: wordmark only — tiny mark, never a hero logo */
.mm-robot__header {
  display: flex;
  align-items: center;
  gap: 0.45rem;
  flex-shrink: 0;
  padding: 0.7rem 0.85rem;
  border-bottom: 1px solid var(--mm-line);
  font-size: 0.72rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mm-white);
}

/* Unobtrusive mark: 16px bullseye, not a crest overlay */
.mm-robot__mark {
  width: 16px;
  height: 16px;
  flex-shrink: 0;
  border-radius: 50%;
  border: 1.5px solid var(--mm-red);
  display: grid;
  place-items: center;
  position: relative;
}
.mm-robot__mark::after {
  content: "";
  width: 6px;
  height: 6px;
  border-radius: 50%;
  background: var(--mm-red);
}

.mm-robot__title {
  font-weight: 500;
  white-space: nowrap;
  overflow: hidden;
  text-overflow: ellipsis;
}

.mm-robot__messages {
  flex: 1;
  overflow: auto;
  -webkit-overflow-scrolling: touch;
  padding: 0.85rem;
  display: flex;
  flex-direction: column;
  gap: 0.7rem;
}

.mm-robot__msg {
  font-size: clamp(0.85rem, 2.8vw, 0.92rem);
  line-height: 1.45;
  max-width: min(92%, 36rem);
  word-wrap: break-word;
  overflow-wrap: anywhere;
}

.mm-robot__msg--user { align-self: flex-end; color: var(--mm-muted); text-align: right; }
.mm-robot__msg--bot { align-self: flex-start; }

.mm-robot__form {
  display: flex;
  gap: 0.45rem;
  flex-shrink: 0;
  padding: 0.65rem 0.75rem calc(0.65rem + var(--mm-safe-b));
  border-top: 1px solid var(--mm-line);
}

.mm-robot__input {
  flex: 1;
  min-width: 0;
  background: transparent;
  border: 1px solid var(--mm-line);
  color: var(--mm-white);
  padding: 0.65rem 0.7rem;
  font-size: 16px; /* avoid iOS zoom */
  outline: none;
  border-radius: 0;
}
.mm-robot__input:focus { border-color: var(--mm-red); }
.mm-robot__input::placeholder { color: #555; }

.mm-robot__send {
  flex-shrink: 0;
  background: transparent;
  border: 1px solid var(--mm-red);
  color: var(--mm-red);
  padding: 0 0.75rem;
  min-height: 44px; /* touch target */
  cursor: pointer;
  font-size: 0.72rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}
.mm-robot__send:hover,
.mm-robot__send:focus-visible { background: var(--mm-red); color: var(--mm-white); }
.mm-robot__send:disabled { opacity: 0.4; cursor: default; }

/* Welcome — compact on phones; no logo stack */
.mm-welcome {
  position: fixed;
  inset: 0;
  z-index: 50;
  display: grid;
  place-items: center;
  padding:
    max(1rem, var(--mm-safe-t))
    max(1rem, var(--mm-safe-r))
    max(1rem, var(--mm-safe-b))
    max(1rem, var(--mm-safe-l));
  background: rgba(0, 0, 0, 0.78);
}

.mm-welcome__card {
  width: 100%;
  max-width: 22rem;
  padding: 1.15rem 1.2rem;
  background: var(--mm-black);
  border: 1px solid var(--mm-line);
  color: var(--mm-white);
}

.mm-welcome__brand {
  display: flex;
  align-items: center;
  gap: 0.4rem;
  margin-bottom: 0.85rem;
  font-size: 0.68rem;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--mm-muted);
}

.mm-welcome__card h2 {
  margin: 0 0 0.65rem;
  font-weight: 500;
  font-size: clamp(0.95rem, 3.5vw, 1.05rem);
}

.mm-welcome__card p {
  margin: 0 0 0.55rem;
  color: var(--mm-muted);
  font-size: clamp(0.82rem, 3vw, 0.9rem);
  line-height: 1.45;
}

.mm-welcome__card button {
  margin-top: 0.65rem;
  width: 100%;
  min-height: 44px;
  background: var(--mm-red);
  color: white;
  border: 0;
  padding: 0.55rem 1rem;
  cursor: pointer;
  font-size: 0.75rem;
  letter-spacing: 0.04em;
  text-transform: uppercase;
}

@media (min-width: 480px) {
  .mm-welcome__card button { width: auto; }
}


/* Tablet: breathing room, still single column */
@media (min-width: 768px) and (max-width: 1023px) {
  .mm-shell { padding: 1.25rem; align-items: center; }
  .mm-robot {
    max-width: 520px;
    height: min(720px, calc(100dvh - 2.5rem));
  }
  .mm-robot__header { font-size: 0.75rem; padding: 0.75rem 1rem; }
  .mm-welcome__card { max-width: 26rem; }
}

/* Large displays: calm centered panel, never stretch chat edge-to-edge */
@media (min-width: 1024px) {
  .mm-shell { padding: 2rem; align-items: center; }
  .mm-robot {
    max-width: 440px;
    height: min(680px, calc(100dvh - 4rem));
    box-shadow: 0 0 0 1px #1a1a1a;
  }
  .mm-robot__mark { width: 16px; height: 16px; } /* stay small on big screens */
}

/* Never float a large emblem over content */
.mm-logo-hero,
.mm-robot img.logo-large,
.mm-robot .crest-overlay {
  display: none !important;
}