:root {
  --glass-bg: rgba(255, 255, 255, 0.1);
  --glass-border: rgba(255, 255, 255, 0.18);
  --glass-shadow: 0 8px 32px rgba(0, 0, 0, 0.35);
  --text-primary: #ffffff;
  --text-secondary: rgba(255, 255, 255, 0.75);
  --accent: #64b5f6;
  --safe-top: env(safe-area-inset-top, 0px);
  --safe-bottom: env(safe-area-inset-bottom, 0px);
}

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

html {
  height: -webkit-fill-available; /* Fix för iOS scroll */
}

body {
  min-height: 100vh;
  display: flex;
  justify-content: center;
  align-items: flex-start; /* Bättre för långt innehåll på mobil */
  background: linear-gradient(135deg, #0f2027, #203a43, #2c5364);
  background-size: 400% 400%;
  animation: gradientShift 15s ease infinite;
  color: var(--text-primary);
  padding: calc(16px + var(--safe-top)) 16px calc(24px + var(--safe-bottom));
  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, Helvetica, Arial, sans-serif;
  -webkit-tap-highlight-color: transparent;
  overscroll-behavior-y: contain; /* Förhindrar iOS "rubber band" */
}

@keyframes gradientShift {
  0% { background-position: 0% 50%; }
  50% { background-position: 100% 50%; }
  100% { background-position: 0% 50%; }
}

.container {
  display: flex;
  flex-direction: column;
  gap: 20px;
  width: 100%;
  max-width: 480px; /* Optimal läsbarhet på mobil */
}

.glass-card {
  background: var(--glass-bg);
  backdrop-filter: blur(16px) saturate(180%);
  -webkit-backdrop-filter: blur(16px) saturate(180%);
  border: 1px solid var(--glass-border);
  border-radius: 24px;
  padding: clamp(20px, 5vw, 32px);
  box-shadow: var(--glass-shadow);
  text-align: center;
}

/* Klocka */
.date { 
  font-size: clamp(1rem, 4vw, 1.25rem); 
  color: var(--text-secondary); 
  margin-bottom: 8px; 
  letter-spacing: 0.5px; 
}

.binary-label { 
  font-size: clamp(0.85rem, 3.5vw, 0.95rem); 
  color: var(--text-secondary); 
  margin-bottom: 12px; 
}

.digital-time { 
  font-size: clamp(2.4rem, 10vw, 3.2rem); 
  font-weight: 700; 
  margin: 16px 0 8px; 
  text-shadow: 0 0 16px rgba(100, 181, 246, 0.5);
  letter-spacing: -1px;
}

.binary-clock {
  display: flex;
  justify-content: center;
  gap: clamp(8px, 3vw, 16px);
  margin-bottom: 12px;
}

.bcd-col {
  display: grid;
  grid-template-rows: repeat(4, 26px);
  gap: 7px;
  align-items: center;
}

.bit-dot {
  width: 18px;
  height: 18px;
  border-radius: 50%;
  background: rgba(255, 255, 255, 0.12);
  transition: transform 0.2s ease, background 0.2s ease, box-shadow 0.2s ease;
}

.bit-dot.on {
  background: var(--accent);
  box-shadow: 0 0 10px var(--accent), inset 0 0 3px rgba(255,255,255,0.6);
  transform: scale(1.1);
}

.bcd-col::after {
  content: '';
  display: block;
  height: 1px;
  width: 32px;
  background: var(--glass-border);
  margin-top: 4px;
}

/* Väder */
.weather-header { 
  font-size: clamp(1.2rem, 5vw, 1.5rem); 
  margin-bottom: 16px; 
  display: flex; 
  align-items: center; 
  justify-content: center; 
  gap: 8px; 
}

.current-weather { 
  display: flex; 
  flex-direction: column; 
  align-items: center; 
  margin-bottom: 20px; 
  padding-bottom: 16px; 
  border-bottom: 1px solid var(--glass-border); 
}

.temp-big { font-size: clamp(2.4rem, 9vw, 3rem); font-weight: 600; }
.weather-desc { color: var(--text-secondary); margin-top: 4px; text-align: center; line-height: 1.4; }

.forecast-grid {
  display: grid;
  grid-template-columns: repeat(auto-fit, minmax(85px, 1fr));
  gap: 10px;
}

.day-card {
  background: rgba(255, 255, 255, 0.06);
  border-radius: 16px;
  padding: 12px 8px;
  display: flex;
  flex-direction: column;
  align-items: center;
  gap: 6px;
  min-height: 90px; /* Touch-vänlig yta */
}

.day-name { font-size: clamp(0.8rem, 3vw, 0.9rem); color: var(--text-secondary); }
.day-icon { font-size: 1.6rem; margin: 2px 0; }
.day-temps { font-size: clamp(0.85rem, 3.5vw, 0.95rem); font-weight: 500; }
.precip { font-size: clamp(0.7rem, 2.8vw, 0.8rem); color: var(--text-secondary); }

.loading, .error { padding: 16px; color: var(--text-secondary); text-align: center; line-height: 1.5; }
.error { background: rgba(255, 75, 75, 0.15); border-radius: 12px; margin-top: 8px; }

/* Namnsdag */
.name-day-label { 
  display: block; 
  font-size: clamp(0.7rem, 3vw, 0.9rem); 
  text-transform: uppercase; 
  letter-spacing: 1.5px; 
  color: var(--text-secondary); 
  margin-bottom: 8px;
}

#name-day-content {
  font-size: clamp(1.2rem, 5vw, 1.6rem);
  font-weight: 600;
  line-height: 1.4;
}

/* Install-knapp */
.install-btn {
  position: fixed;
  bottom: calc(24px + var(--safe-bottom));
  left: 50%;
  transform: translateX(-50%);
  background: var(--accent);
  color: #0f172a;
  border: none;
  padding: 14px 24px;
  border-radius: 32px;
  font-size: 1rem;
  font-weight: 600;
  cursor: pointer;
  box-shadow: 0 4px 16px rgba(100, 181, 246, 0.4);
  transition: transform 0.2s ease, opacity 0.3s ease;
  z-index: 100;
}

.install-btn.hidden { display: none; }
.install-btn:active { transform: translateX(-50%) scale(0.96); }

/* Tillgänglighet & prestanda */
@media (prefers-reduced-motion: reduce) {
  body, .bit-dot.on { animation: none !important; transition: none !important; }
}

/* Liggande läge / större skärmar */
@media (min-width: 600px) {
  .container { max-width: 520px; gap: 24px; }
  .forecast-grid { grid-template-columns: repeat(7, 1fr); }
}