*, *::before, *::after { box-sizing: border-box; margin: 0; padding: 0; }

:root {
  --bg: #0a0c0f;
  --panel: #111318;
  --border: #1e2530;
  --border-glow: #2a3a50;
  --text: #c8d8e8;
  --text-dim: #5a6a7a;
  --text-bright: #e8f0f8;
  --accent: #00aaff;
  --accent-dim: rgba(0,170,255,0.15);
  --green: #00ff88;
  --green-dim: rgba(0,255,136,0.1);
  --red: #ff4444;
  --red-dim: rgba(255,68,68,0.15);
  --yellow: #ffcc00;

  --police: #1a6bb5;
  --fire: #c0392b;
  --dot: #7d9b2a;
  --jmpd: #1a8a6a;
  --dispatch: #7a3ab5;
}

html, body {
  height: 100%;
  background: var(--bg);
  color: var(--text);
  font-family: 'Rajdhani', sans-serif;
  font-size: 15px;
  /* Allow scrolling on mobile */
  overflow-x: hidden;
  overflow-y: auto;
}

/* ── SCREENS ── */
.screen { display: none; width: 100%; min-height: 100vh; }
.screen.active { display: flex; align-items: flex-start; justify-content: center; padding: 16px; }

/* ── LOGIN ── */
.login-box {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 12px;
  padding: 28px 20px;
  width: 100%;
  max-width: 420px;
  margin: auto;
  box-shadow: 0 0 60px rgba(0,100,200,0.08), 0 0 0 1px rgba(255,255,255,0.03);
}

.logo-area { text-align: center; margin-bottom: 24px; }
.logo-icon { font-size: 36px; margin-bottom: 8px; }
.logo-area h1 {
  font-size: 22px;
  font-weight: 700;
  letter-spacing: 5px;
  color: var(--text-bright);
}
.subtitle {
  font-family: 'Share Tech Mono', monospace;
  font-size: 10px;
  letter-spacing: 3px;
  color: var(--text-dim);
  margin-top: 4px;
}

.form-group { margin-bottom: 18px; }
.form-group label {
  display: block;
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--text-dim);
  margin-bottom: 7px;
}
.form-group input {
  width: 100%;
  background: #0d1015;
  border: 1px solid var(--border);
  border-radius: 6px;
  padding: 12px 14px;
  color: var(--text-bright);
  font-family: 'Share Tech Mono', monospace;
  font-size: 15px;
  letter-spacing: 2px;
  outline: none;
  transition: border-color 0.2s;
  /* Prevent zoom on focus on iOS */
  font-size: 16px;
}
.form-group input:focus { border-color: var(--accent); }
.form-group input::placeholder { color: var(--text-dim); letter-spacing: 1px; }

.dept-grid {
  display: grid;
  grid-template-columns: 1fr 1fr;
  gap: 8px;
}
.dept-btn-wide { grid-column: 1 / -1; }

.dept-btn {
  background: #0d1015;
  border: 1px solid var(--border);
  border-radius: 8px;
  padding: 12px 8px;
  color: var(--text);
  cursor: pointer;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 4px;
  font-family: 'Rajdhani', sans-serif;
  font-weight: 600;
  font-size: 12px;
  letter-spacing: 1.5px;
  transition: all 0.18s;
  /* Larger tap target */
  min-height: 72px;
  -webkit-tap-highlight-color: transparent;
}
.dept-btn:hover { border-color: var(--border-glow); background: #131820; }
.dept-btn.selected { border-color: var(--accent); background: var(--accent-dim); color: var(--accent); }
.dept-btn[data-dept="POLICE"].selected  { border-color: var(--police); background: rgba(26,107,181,0.15); color: #5aabef; }
.dept-btn[data-dept="FIRE"].selected    { border-color: var(--fire);   background: rgba(192,57,43,0.15);  color: #e87060; }
.dept-btn[data-dept="DOT"].selected     { border-color: var(--dot);    background: rgba(125,155,42,0.15); color: #b0d040; }
.dept-btn[data-dept="JMPD"].selected    { border-color: var(--jmpd);   background: rgba(26,138,106,0.15); color: #40c090; }
.dept-btn[data-dept="DISPATCH"].selected{ border-color: var(--dispatch);background:rgba(122,58,181,0.15); color: #c080f0; }

.dept-icon { font-size: 22px; }
.dept-freq {
  font-family: 'Share Tech Mono', monospace;
  font-size: 10px;
  color: var(--text-dim);
  margin-top: 2px;
}
.dept-btn.selected .dept-freq { color: inherit; opacity: 0.7; }

.connect-btn {
  width: 100%;
  margin-top: 8px;
  padding: 16px;
  background: linear-gradient(135deg, #003366 0%, #005599 100%);
  border: 1px solid #0077bb;
  border-radius: 8px;
  color: #a0d4ff;
  font-family: 'Rajdhani', sans-serif;
  font-size: 15px;
  font-weight: 700;
  letter-spacing: 3px;
  cursor: pointer;
  transition: all 0.2s;
  -webkit-tap-highlight-color: transparent;
  /* Better tap target */
  min-height: 52px;
}
.connect-btn:disabled { opacity: 0.4; cursor: not-allowed; }
.connect-btn:not(:disabled):hover,
.connect-btn:not(:disabled):active {
  background: linear-gradient(135deg, #004488 0%, #0077cc 100%);
  box-shadow: 0 0 20px rgba(0,119,187,0.3);
}

.error-msg { color: var(--red); font-size: 12px; text-align: center; margin-top: 10px; min-height: 16px; }

/* ── RADIO SCREEN ── */
#radio-screen {
  background: var(--bg);
  padding: 0;
  align-items: flex-start;
}

.radio-container {
  width: 100%;
  max-width: 480px;
  display: flex;
  flex-direction: column;
  gap: 8px;
  padding: 12px 12px 24px;
  /* Let it scroll naturally, no fixed height */
  min-height: 100vh;
}

/* Header */
.radio-header {
  display: flex;
  align-items: center;
  justify-content: space-between;
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 10px 12px;
  position: sticky;
  top: 12px;
  z-index: 10;
}
.header-left { display: flex; align-items: center; gap: 8px; }
.signal-bars { display: flex; align-items: flex-end; gap: 2px; height: 16px; }
.bar { display: block; background: var(--green); border-radius: 1px; animation: pulse-bar 1.5s ease-in-out infinite; }
.bar.b1 { width: 3px; height: 4px;  animation-delay: 0s; }
.bar.b2 { width: 3px; height: 7px;  animation-delay: 0.1s; }
.bar.b3 { width: 3px; height: 11px; animation-delay: 0.2s; }
.bar.b4 { width: 3px; height: 15px; animation-delay: 0.3s; }
@keyframes pulse-bar { 0%,100% { opacity: 1; } 50% { opacity: 0.4; } }
.status-text { font-family: 'Share Tech Mono', monospace; font-size: 11px; color: var(--green); letter-spacing: 1px; }

.dept-badge {
  font-size: 12px;
  font-weight: 700;
  letter-spacing: 2px;
  padding: 4px 10px;
  border-radius: 20px;
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  color: var(--accent);
}
.dept-badge.POLICE   { background: rgba(26,107,181,0.2); border-color: var(--police); color: #6bc0ff; }
.dept-badge.FIRE     { background: rgba(192,57,43,0.2);  border-color: var(--fire);   color: #ff8070; }
.dept-badge.DOT      { background: rgba(125,155,42,0.2); border-color: var(--dot);    color: #c0e050; }
.dept-badge.JMPD     { background: rgba(26,138,106,0.2); border-color: var(--jmpd);   color: #50d0a0; }
.dept-badge.DISPATCH { background: rgba(122,58,181,0.2); border-color: var(--dispatch);color: #d090ff; }

.header-right { display: flex; align-items: center; gap: 8px; }
.callsign-tag { font-family: 'Share Tech Mono', monospace; font-size: 11px; color: var(--text-dim); }
.icon-btn {
  background: none;
  border: 1px solid var(--border);
  border-radius: 6px;
  color: var(--text-dim);
  width: 32px; height: 32px;
  cursor: pointer;
  font-size: 13px;
  transition: all 0.2s;
  -webkit-tap-highlight-color: transparent;
}
.icon-btn:hover, .icon-btn:active { border-color: var(--red); color: var(--red); }

/* Frequency Display */
.freq-display {
  background: #080b0e;
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 14px;
  text-align: center;
  position: relative;
  overflow: hidden;
}
.freq-display::before {
  content: '';
  position: absolute;
  top: 0; left: 0; right: 0; bottom: 0;
  background: repeating-linear-gradient(0deg, transparent, transparent 2px, rgba(255,255,255,0.01) 2px, rgba(255,255,255,0.01) 4px);
  pointer-events: none;
}
.freq-label { font-family: 'Share Tech Mono', monospace; font-size: 10px; letter-spacing: 3px; color: var(--text-dim); }
.freq-value {
  font-family: 'Share Tech Mono', monospace;
  font-size: 36px;
  color: var(--green);
  letter-spacing: 4px;
  text-shadow: 0 0 20px rgba(0,255,136,0.5);
  line-height: 1.1;
  margin: 4px 0;
}
#dept-name-display { font-size: 11px; letter-spacing: 2px; color: var(--text-dim); margin-top: 2px; }

/* TX Area */
.tx-area {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 12px;
  min-height: 52px;
}
.tx-indicator { display: flex; align-items: center; gap: 8px; }
.tx-dot {
  width: 10px; height: 10px;
  border-radius: 50%;
  background: var(--text-dim);
  flex-shrink: 0;
  transition: background 0.1s, box-shadow 0.1s;
}
.tx-text {
  font-family: 'Share Tech Mono', monospace;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--text-dim);
  min-width: 100px;
}
.tx-area.transmitting .tx-dot { background: var(--red); box-shadow: 0 0 12px var(--red); }
.tx-area.transmitting .tx-text { color: var(--red); }
.tx-area.receiving .tx-dot { background: var(--green); box-shadow: 0 0 12px var(--green); }
.tx-area.receiving .tx-text { color: var(--green); }

.waveform { display: flex; align-items: center; gap: 3px; height: 30px; }
.wave-bar {
  width: 4px; height: 4px;
  background: var(--border);
  border-radius: 2px;
  transition: height 0.05s;
}
.tx-area.transmitting .wave-bar,
.tx-area.receiving .wave-bar {
  animation: wave 0.6s ease-in-out infinite;
  animation-delay: calc(var(--i) * 0.07s);
}
.tx-area.transmitting .wave-bar { background: var(--red); }
.tx-area.receiving .wave-bar { background: var(--green); }
@keyframes wave { 0%,100% { height: 4px; } 50% { height: 24px; } }

/* Channel Info */
.channel-info {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
}
.channel-label {
  font-size: 10px;
  letter-spacing: 2px;
  color: var(--text-dim);
  margin-bottom: 8px;
  display: flex;
  align-items: center;
  gap: 8px;
}
.count-badge {
  background: var(--accent-dim);
  border: 1px solid var(--accent);
  color: var(--accent);
  border-radius: 10px;
  padding: 1px 7px;
  font-family: 'Share Tech Mono', monospace;
  font-size: 11px;
}
.user-list { display: flex; flex-wrap: wrap; gap: 6px; min-height: 28px; align-items: center; }
.user-tag {
  background: #0d1520;
  border: 1px solid var(--border-glow);
  border-radius: 4px;
  padding: 4px 8px;
  font-family: 'Share Tech Mono', monospace;
  font-size: 11px;
  color: var(--text);
}
.no-users { font-size: 12px; color: var(--text-dim); font-style: italic; }

/* Activity Log */
.activity-log {
  background: var(--panel);
  border: 1px solid var(--border);
  border-radius: 10px;
  padding: 12px 14px;
  /* Fixed height with scroll instead of flex-grow */
  height: 180px;
  display: flex;
  flex-direction: column;
}
.log-label { font-size: 10px; letter-spacing: 2px; color: var(--text-dim); margin-bottom: 8px; flex-shrink: 0; }
.log-entries {
  overflow-y: auto;
  flex: 1;
  display: flex;
  flex-direction: column;
  gap: 4px;
  -webkit-overflow-scrolling: touch;
}
.log-entries::-webkit-scrollbar { width: 4px; }
.log-entries::-webkit-scrollbar-thumb { background: var(--border); border-radius: 2px; }
.log-entry {
  font-family: 'Share Tech Mono', monospace;
  font-size: 11px;
  color: var(--text-dim);
  padding: 4px 8px;
  border-left: 2px solid var(--border);
  display: flex;
  gap: 8px;
}
.log-entry.tx { border-left-color: var(--red); color: var(--text); }
.log-entry.rx { border-left-color: var(--green); color: var(--text); }
.log-entry.sys { border-left-color: var(--yellow); color: var(--yellow); }
.log-time { opacity: 0.5; flex-shrink: 0; }

/* PTT */
.ptt-area {
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 10px;
  padding-bottom: env(safe-area-inset-bottom, 12px);
  /* Stick to bottom on mobile */
  position: sticky;
  bottom: 0;
  background: var(--bg);
  padding-top: 10px;
  margin: 0 -12px;
  padding-left: 12px;
  padding-right: 12px;
  border-top: 1px solid var(--border);
}
.ptt-hint { font-size: 11px; letter-spacing: 1px; color: var(--text-dim); }

.ptt-btn {
  width: 100%;
  padding: 22px 20px;
  background: linear-gradient(135deg, #0d1a2a 0%, #102030 100%);
  border: 2px solid #1a3a5a;
  border-radius: 12px;
  color: #5090c0;
  cursor: pointer;
  font-family: 'Rajdhani', sans-serif;
  font-size: 20px;
  font-weight: 700;
  letter-spacing: 4px;
  display: flex;
  align-items: center;
  justify-content: center;
  gap: 12px;
  transition: all 0.1s;
  user-select: none;
  -webkit-user-select: none;
  touch-action: none;
  -webkit-tap-highlight-color: transparent;
  /* Bigger tap target on mobile */
  min-height: 72px;
}
.ptt-btn:active,
.ptt-btn.active {
  background: linear-gradient(135deg, #300000 0%, #550000 100%);
  border-color: var(--red);
  color: #ffaaaa;
  box-shadow: 0 0 30px rgba(255,50,50,0.4), inset 0 0 20px rgba(255,0,0,0.1);
  transform: scale(0.98);
}
.ptt-btn.busy {
  border-color: var(--yellow);
  color: var(--yellow);
  animation: busy-flash 0.3s ease-in-out 3;
}
@keyframes busy-flash {
  0%,100% { background: linear-gradient(135deg, #0d1a2a 0%, #102030 100%); }
  50% { background: rgba(255,200,0,0.1); }
}
.ptt-icon { font-size: 24px; }

/* ── MOBILE RESPONSIVE ── */
@media (max-width: 480px) {
  .screen.active { padding: 10px; }

  .radio-container {
    padding: 10px 10px 0;
    gap: 8px;
    min-height: 100vh;
  }

  .radio-header {
    padding: 8px 10px;
    top: 10px;
  }

  .freq-value { font-size: 30px; }

  .dept-grid { gap: 6px; }
  .dept-btn { min-height: 68px; padding: 10px 6px; }

  .login-box { padding: 24px 16px; }
  .logo-area h1 { font-size: 20px; letter-spacing: 4px; }

  .activity-log { height: 150px; }

  .ptt-btn {
    font-size: 18px;
    min-height: 68px;
    letter-spacing: 3px;
  }

  .callsign-tag { display: none; }
}

/* ── VERY SMALL SCREENS (iPhone SE etc) ── */
@media (max-width: 360px) {
  .freq-value { font-size: 26px; }
  .logo-area h1 { font-size: 18px; }
  .dept-btn { font-size: 11px; min-height: 62px; }
  .ptt-btn { font-size: 16px; }
}

/* ── LANDSCAPE MOBILE ── */
@media (max-height: 500px) and (orientation: landscape) {
  .freq-display { padding: 8px; }
  .freq-value { font-size: 24px; margin: 2px 0; }
  .activity-log { height: 100px; }
  .ptt-btn { min-height: 56px; padding: 14px 20px; }
  .radio-header { position: relative; top: 0; }
}