:root {
  color-scheme: dark;
  font-family: Inter, ui-sans-serif, system-ui, -apple-system, BlinkMacSystemFont, "Segoe UI", sans-serif;
  background: #050507;
  color: #ffffff;
}

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  min-height: 100vh;
}

body.client-page {
  overflow: hidden;
}

button,
a {
  font: inherit;
}

.screen {
  position: relative;
  width: 100vw;
  height: 100vh;
  overflow: hidden;
  background: radial-gradient(circle at center, #1c1c25 0, #050507 65%);
}

.preview-video {
  width: 100%;
  height: 100%;
  object-fit: contain;
  background: #000000;
}

.empty-state {
  position: absolute;
  inset: 0;
  display: grid;
  place-content: center;
  gap: 0.5rem;
  padding: 2rem;
  text-align: center;
  background: linear-gradient(135deg, #101018, #050507);
}

.empty-state h1,
.client-shell h1 {
  margin: 0;
  font-size: clamp(2.25rem, 6vw, 5.75rem);
  letter-spacing: -0.06em;
}

.empty-state p,
.helper-text {
  margin: 0;
  color: #b9bcc8;
  font-size: clamp(1rem, 2vw, 1.25rem);
}

.qr-card {
  position: absolute;
  right: clamp(1rem, 3vw, 2rem);
  bottom: clamp(6rem, 12vh, 8rem);
  width: clamp(132px, 16vw, 220px);
  padding: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.2);
  border-radius: 1.25rem;
  background: rgba(0, 0, 0, 0.72);
  box-shadow: 0 24px 80px rgba(0, 0, 0, 0.4);
  backdrop-filter: blur(16px);
}

.qr-card img {
  display: block;
  width: 100%;
  border-radius: 0.75rem;
  background: #ffffff;
}

.qr-card p {
  margin: 0.65rem 0 0;
  font-size: clamp(0.8rem, 1.4vw, 1rem);
  font-weight: 800;
  letter-spacing: 0.08em;
  text-align: center;
  text-transform: uppercase;
}

.preview-controls {
  position: absolute;
  left: 50%;
  bottom: clamp(1rem, 3vh, 2rem);
  display: flex;
  gap: 0.75rem;
  padding: 0.75rem;
  border: 1px solid rgba(255, 255, 255, 0.16);
  border-radius: 999px;
  background: rgba(0, 0, 0, 0.58);
  box-shadow: 0 20px 60px rgba(0, 0, 0, 0.35);
  transform: translateX(-50%);
  backdrop-filter: blur(16px);
}

.preview-controls button,
.download-button {
  border: 0;
  border-radius: 999px;
  color: #050507;
  background: #ffffff;
  cursor: pointer;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-decoration: none;
  text-transform: uppercase;
}

.preview-controls button {
  min-width: clamp(88px, 11vw, 148px);
  padding: 0.95rem 1.25rem;
}

.preview-controls button:disabled {
  cursor: not-allowed;
  opacity: 0.38;
}

.client-page {
  display: grid;
  width: 100vw;
  height: 100vh;
  height: 100svh;
  min-height: 0;
  place-items: center;
  padding: 20px;
  background: #ffffff;
}

.client-shell {
  display: flex;
  flex-direction: column;
  width: min(430px, calc(100vw - 40px), calc((100svh - 40px) * 0.54));
  height: min(820px, calc(100svh - 40px), calc((100vw - 40px) / 0.54));
  padding: 14px;
  overflow: hidden;
  border: 6px solid #15151b;
  border-radius: 42px;
  background: #050507;
  box-shadow:
    inset 0 0 0 2px rgba(255, 255, 255, 0.1),
    0 22px 60px rgba(0, 0, 0, 0.34);
}

.eyebrow {
  margin: 0 0 0.8rem;
  color: #c8d3ff;
  font-weight: 900;
  letter-spacing: 0.16em;
  text-transform: uppercase;
}

.video-panel {
  flex: 1 1 auto;
  min-height: 0;
  overflow: hidden;
  border-radius: 28px 28px 0 0;
  background: #111631;
}

.client-video {
  display: block;
  width: 100%;
  height: 100%;
  margin: 0;
  border-radius: 0;
  object-fit: cover;
  opacity: 0;
  background: #111631;
}

.client-video.is-ready {
  opacity: 1;
}

.download-panel {
  flex: 0 0 auto;
  padding: 10px 14px 12px;
  border-radius: 0 0 28px 28px;
  background: #242424;
}

.download-button {
  display: block;
  width: 100%;
  margin: 0;
  padding: 1rem 1.4rem;
  text-align: center;
}

.download-button:disabled {
  cursor: wait;
  opacity: 0.72;
}

.primary-action {
  background: #dfe3ff;
}

.secondary-action {
  color: #ffffff;
  background: rgba(255, 255, 255, 0.16);
}

.text-link {
  display: block;
  margin-top: 1rem;
  color: #dfe5ff;
  font-weight: 800;
  text-align: center;
  text-decoration: underline;
  text-underline-offset: 0.25em;
}

.helper-text {
  margin-top: 14px;
}

.client-page .helper-text {
  padding: 0 0 2px;
  color: #c2c4cc;
  font-size: 0.95rem;
  line-height: 1.28;
  text-align: center;
}

@media (max-width: 520px) {
  .client-page {
    padding: 0;
    background: #050507;
  }

  .client-shell {
    width: 100vw;
    height: 100svh;
    padding: 0;
    border: 0;
    border-radius: 0;
    box-shadow: none;
  }

  .video-panel,
  .download-panel {
    border-radius: 0;
  }
}

.warning-text {
  color: #ffd38a;
  font-weight: 800;
}

.hidden {
  display: none !important;
}

.preview-controls form {
  margin: 0;
}

.login-shell {
  width: min(560px, 100%);
}

.login-form {
  display: grid;
  gap: 0.85rem;
  margin-top: 1.5rem;
}

.login-form label {
  color: #dfe5ff;
  font-weight: 900;
  letter-spacing: 0.08em;
  text-transform: uppercase;
}

.login-form input {
  width: 100%;
  border: 1px solid rgba(255, 255, 255, 0.18);
  border-radius: 1rem;
  padding: 1rem;
  color: #ffffff;
  background: rgba(0, 0, 0, 0.36);
  font: inherit;
  outline: none;
}

.login-form input:focus {
  border-color: #c8d3ff;
  box-shadow: 0 0 0 4px rgba(200, 211, 255, 0.16);
}