/* ----------------------------------------------------------
   CHRONO STYLES
---------------------------------------------------------- */

body {
  background: #fdfdf9;
}

.page-main {
  max-width: 980px;
  width: 100%;
  margin: 0 auto;
  padding: 42px 20px 24px;
  flex: 1;
  display: flex;
  flex-direction: column;
  align-items: center;
}

.chrono-shell {
  width: 100%;
  max-width: 640px;
  margin: 0 auto;
}

.tool-header {
  display: flex;
  align-items: center;
  margin-bottom: 16px;
}

.tool-header .app-brand-text {
  font-size: 3rem;
  line-height: 1;
}

/* ----------------------------------------------------------
   TIMER DISPLAY
---------------------------------------------------------- */
.chrono-display {
  background: #f4f8fb;
  border-radius: 16px;
  padding: 24px 0;
  margin-bottom: 24px;
  border: 2px solid #e1e8ed;
  
  font-family: "Courier New", Courier, monospace;
  font-size: 4rem;
  font-weight: 700;
  color: #333;
  letter-spacing: -0.02em;
  font-variant-numeric: tabular-nums;
  text-align: center; /* Numbers still look best centered in their box */
}

/* ----------------------------------------------------------
   BUTTONS
---------------------------------------------------------- */
.btn-main {
  width: 100%;
  padding: 16px;
  font-size: 1.5rem;
  font-weight: 700;
  border: none;
  border-radius: 14px;
  cursor: pointer;
  transition: all 0.2s ease;
  color: white;
  outline: none;
  text-transform: uppercase;
  letter-spacing: 0.05em;
}

.btn-main:active {
  transform: scale(0.98);
}

.btn-secondary {
  width: 100%;
  margin-top: 10px;
  padding: 10px 14px;
  font-size: 0.95rem;
  font-weight: 700;
  border: 1px solid rgba(0, 0, 0, 0.16);
  border-radius: 12px;
  background: #f4fbff;
  color: #115a74;
  cursor: pointer;
}

.btn-secondary:hover {
  background: #e2f3ff;
}

footer {
  background: linear-gradient(180deg, #0a90bc 0%, #0a6a8c 100%);
  border-top: 1px solid rgba(0, 0, 0, 0.2);
}

/* State Colors */
.btn-play {
  background-color: #2ecc71; 
  box-shadow: 0 8px 20px rgba(46, 204, 113, 0.3);
}
.btn-play:hover {
  background-color: #27ae60;
}

.btn-stop {
  background-color: #ff506e; 
  box-shadow: 0 8px 20px rgba(255, 80, 110, 0.3);
}
.btn-stop:hover {
  background-color: #e63956;
}

.btn-reset {
  background-color: #3498db; 
  box-shadow: 0 8px 20px rgba(52, 152, 219, 0.3);
}
.btn-reset:hover {
  background-color: #2980b9;
}

/* Mobile Tweak */
@media (max-width: 500px) {
  .chrono-display {
    font-size: 3rem;
  }
}

body.popup-mode app-header,
body.popup-mode app-footer,
body.popup-mode .tool-header,
body.popup-mode .btn-secondary {
  display: none !important;
}

body.popup-mode {
  background: #0f2b36;
}

body.popup-mode .page-main {
  max-width: none;
  padding: 12px;
  min-height: 100vh;
  justify-content: center;
  align-items: stretch;
}

body.popup-mode .chrono-display {
  font-size: 2.8rem;
  margin-bottom: 12px;
  padding: 16px 0;
}