/* =========================
   GLOBAL
   ========================= */

* {
  box-sizing: border-box;
}

body {
  margin: 0;
  font-family: "Segoe UI", Arial, sans-serif;
  background: #f4f6f8;
  color: #1e293b;

  font-size: 16px;
  font-weight: 500;
}


/* =========================
   BRAND HEADER
   ========================= */

#brand-bar {
  position: fixed;
  top: 0;
  left: 0;
  width: 100%;
  height: 56px;

  background: #0ea5e9;
  color: white;

  display: flex;
  align-items: center;
  justify-content: space-between;

  padding: 0 22px;

  box-shadow: 0 2px 8px rgba(0,0,0,0.18);
  z-index: 1000;
}

#brand-title {
  font-size: 18px;
  font-weight: 700;
  letter-spacing: 0.3px;
}

#brand-founder {
  font-size: 14px;
  font-weight: 500;
  opacity: 0.95;
}

#brand-founder strong {
  font-weight: 800;
}


/* =========================
   MAIN GRID
   ========================= */

#app {
  display: grid;
  grid-template-columns: 1fr 1fr;
  grid-template-rows: 1fr 1fr;

  margin-top: 56px;
  height: calc(100vh - 56px);

  gap: 14px;
  padding: 14px;
}


/* =========================
   PANELS
   ========================= */

.panel {
  background: white;
  border-radius: 12px;
  padding: 20px;
  box-shadow: 0 4px 10px rgba(0,0,0,0.06);
  overflow: auto;
}

.subpanel {
  background: #f8fafc;
  border-radius: 10px;
  padding: 16px 18px;

  line-height: 1.8;
  font-size: 15px;
  font-weight: 500;
}


/* =========================
   SPLIT PANELS
   ========================= */

.split {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 16px;
  height: 100%;
}


/* =========================
   IMAGE
   ========================= */

#question-image {
  width: 100%;
  height: 100%;
  object-fit: contain;
}


/* =========================
   QUESTION AREA
   ========================= */

#question-text {
  font-size: 22px;
  line-height: 1.7;
  font-weight: 600;
  margin-top: 12px;
}


/* =========================
   TIMER
   ========================= */

#timer {
  font-size: 36px;
  font-weight: 700;
  color: #0ea5e9;
  margin-bottom: 22px;
}


/* =========================
   HEADINGS
   ========================= */

h2, h3 {
  margin: 0 0 22px 0;
  font-weight: 700;
  font-size: 20px;
}


/* =========================
   BUTTONS
   ========================= */

button {
  border: none;
  border-radius: 10px;
  padding: 14px 22px;

  font-size: 15px;
  font-weight: 600;
  cursor: pointer;

  transition: 0.2s ease;
}

.primary-btn {
  background: #0ea5e9;
  color: white;
}

.primary-btn:hover {
  background: #0284c7;
}

.secondary-btn {
  background: #e2e8f0;
  color: #0f172a;
}

.secondary-btn:hover {
  background: #cbd5f5;
}


/* =========================
   CONTROLS
   ========================= */

.controls {
  margin-top: 30px;
}

.controls button {
  margin-right: 12px;
}


/* =========================
   UTILITIES
   ========================= */

.hidden {
  display: none;
}


/* =========================
   PANEL DATA SCALING (+20%)
   ========================= */

#flight-info,
#aircraft-info,
#frequencies,
#weather {
  font-size: 18px;        /* was visually ~15px */
  line-height: 1.9;
  font-weight: 600;
}

/* Headings inside panels */

#flight-info b,
#aircraft-info b,
#frequencies b,
#weather b {
  font-size: 1.2em;       /* scales 20% relative */
  font-weight: 700;
}
#brand-founder a {
  color: white;
  text-decoration: none;
}

#brand-founder a:visited {
  color: white;
}

#brand-founder a:hover {
  text-decoration: underline;
}
* {
  -webkit-user-select: none;
  -ms-user-select: none;
  user-select: none;
  -webkit-touch-callout: none;
}