:root {
  --bb-yellow: #ffdb00;
  --bb-blue: #0033a1;
  --bb-blue-dark: #022b88;
  --bg: #f4f7ff;
  --surface: #ffffff;
  --text: #001a54;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  width: 100%;
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: Arial, Helvetica, sans-serif;
  overflow: hidden;
  touch-action: manipulation;
}

.kiosk {
  width: 100vw;
  height: 100vh;
  display: grid;
  grid-template-rows: auto 1fr;
  background: var(--bg);
}

.brand-header {
  min-height: 92px;
  padding: 14px 16px;
  background: var(--bb-yellow);
  display: flex;
  align-items: center;
  justify-content: center;
}

.brand-logo {
  width: min(75vw, 380px);
  height: auto;
  user-select: none;
  -webkit-user-drag: none;
}

.home-screen {
  display: grid;
  grid-template-rows: 1fr auto;
  min-height: 0;
}

.banner-stage {
  width: 100%;
  height: 100%;
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
  background: var(--surface);
}

.banner-image {
  width: 100%;
  height: 100%;
  object-fit: cover;
  user-select: none;
  -webkit-user-drag: none;
}

.actions {
  padding: 20px 16px 24px;
  display: flex;
  justify-content: center;
  background: linear-gradient(to top, rgba(0, 51, 161, 0.96), rgba(0, 51, 161, 0.85));
}

.start-call {
  width: min(92vw, 480px);
  min-height: 82px;
  border: 0;
  border-radius: 16px;
  background: var(--bb-yellow);
  color: var(--bb-blue);
  font-size: clamp(1.3rem, 2.8vw, 2rem);
  font-weight: 700;
  letter-spacing: 0.01em;
  cursor: pointer;
}

.start-call:hover,
.start-call:focus-visible {
  background: #ffd200;
}

.start-call:active {
  transform: scale(0.99);
}

.call-screen {
  width: 100%;
  height: 100%;
  min-height: 0;
  display: grid;
  grid-template-rows: auto 1fr;
  background: #000;
}

.call-toolbar {
  padding: 10px;
  background: var(--bb-blue);
  display: flex;
  justify-content: center;
}

.end-call {
  border: 0;
  border-radius: 12px;
  min-height: 60px;
  padding: 0 24px;
  font-size: 1.2rem;
  font-weight: 700;
  background: var(--bb-yellow);
  color: var(--bb-blue);
}

.call-frame {
  width: 100%;
  height: 100%;
  border: 0;
  background: #000;
}

.hidden {
  display: none;
}

@media (orientation: landscape) {
  .kiosk {
    max-width: 56.25vh;
    margin: 0 auto;
    border-left: 1px solid rgba(0, 51, 161, 0.2);
    border-right: 1px solid rgba(0, 51, 161, 0.2);
  }
}