:root{
  /* Brighter, fresher palette */
  --bg-1: #06223a; /* deep ocean */
  --bg-2: #0b586f; /* teal-blue */
  --accent: #ffb86b; /* warm amber */
  --accent-2: #4fd1c5; /* mint */
  --glass: rgba(255,255,255,0.06);
  --muted: rgba(255,255,255,0.8);
  --card: rgba(255,255,255,0.05);
  --glass-2: rgba(255,255,255,0.03);
  --radius: 14px;
}

*{box-sizing:border-box;margin:0;padding:0}
html,body{height:100%}
body{
  font-family: 'Inter', system-ui, -apple-system, 'Segoe UI', Roboto, 'Helvetica Neue', Arial;
  background: linear-gradient(180deg,var(--bg-1) 0%, var(--bg-2) 100%);
  color: #e6eef7;
  -webkit-font-smoothing:antialiased;
  -moz-osx-font-smoothing:grayscale;
}

.container{max-width:1100px;margin:0 auto;padding:28px}

.site-header{padding:18px 0}
.header-inner{display:flex;align-items:center;justify-content:space-between;gap:16px}
.logo{font-weight:700;font-size:20px;color:var(--accent)}
.tagline{color:var(--muted);font-size:13px}

.search{margin:18px 0}
.search-box{display:flex;align-items:center;gap:8px;background:linear-gradient(90deg, rgba(255,255,255,0.03), rgba(255,255,255,0.02));padding:10px;border-radius:28px;backdrop-filter: blur(6px);box-shadow:0 6px 26px rgba(2,6,23,0.45)}
.search-icon{color:var(--muted);margin-left:8px}
.search-box input{flex:1;background:transparent;border:0;color:inherit;padding:10px 12px;font-size:15px;outline:none}
.search-box button{background:linear-gradient(180deg,var(--accent),var(--accent-2));border:0;padding:10px 16px;border-radius:16px;color:#04121a;font-weight:700;cursor:pointer;box-shadow:0 6px 18px rgba(255,184,107,0.12)}
.search-box button:hover{transform:translateY(-1px)}
.search-box button:active{transform:translateY(0)}

/* unit toggle */
.unit-toggle{background:transparent;border:1px solid rgba(255,255,255,0.08);color:var(--muted);padding:6px 10px;border-radius:12px;font-weight:600;cursor:pointer}
.unit-toggle:hover{background:rgba(255,255,255,0.02);color:#fff}
.unit-toggle[aria-pressed="true"]{background:linear-gradient(180deg,var(--accent),var(--accent-2));color:#04121a;border-color:transparent}
.message{margin-top:8px;color:#ffdede;font-size:13px;min-height:18px}

.weather-grid{display:grid;grid-template-columns:1fr 240px 240px;gap:18px;margin-top:18px}
.card{background:linear-gradient(180deg,var(--card),var(--glass-2));padding:18px;border-radius:var(--radius);box-shadow:0 8px 30px rgba(2,6,23,0.5);}
.main-card{display:flex;flex-direction:column}
.main-top{display:flex;align-items:center;justify-content:space-between}
.main-left h2{font-size:20px;margin-bottom:6px}
.main-left p{color:var(--muted);font-size:14px}
.main-right{display:flex;flex-direction:column;align-items:flex-end;gap:6px}
.temp{font-size:42px;font-weight:700}
.weather-icon{font-size:40px;color:var(--muted)}
.details{display:flex;gap:12px;flex-wrap:wrap;margin-top:12px}
.metric{display:flex;align-items:center;gap:8px;color:var(--muted);font-size:13px}
.metric i{color:var(--accent)}

.small-card h3{color:var(--muted);font-size:13px;margin-bottom:6px}
.small-card p{font-size:18px;font-weight:600}

.site-footer{margin-top:28px;padding:18px 0;color:var(--muted);font-size:13px;text-align:center}

/* Forecast styles */
.forecast-section{margin-top:26px}
.forecast-title{color:var(--muted);font-size:16px;margin-bottom:12px}
.forecast-grid{display:grid;grid-template-columns:repeat(5,1fr);gap:12px}
.forecast-card{background:linear-gradient(180deg,var(--card),rgba(255,255,255,0.02));padding:12px;border-radius:12px;text-align:center;color:var(--muted)}
.forecast-card .day{font-weight:600;margin-bottom:6px;color:#fff}
.forecast-card img{width:56px;height:56px}
.forecast-card .temp{font-size:18px;font-weight:700;margin-top:6px;color:var(--accent)}

/* loader */
.loader{display:inline-block;width:42px;height:42px;border-radius:50%;border:4px solid rgba(255,255,255,0.08);border-top-color:var(--accent);animation:spin 1s linear infinite;margin:8px auto}
@keyframes spin{to{transform:rotate(360deg)}}

/* hover/focus for cards */
.card:hover{transform:translateY(-6px);box-shadow:0 14px 36px rgba(2,6,23,0.55)}
.card{transition:transform 200ms ease, box-shadow 200ms ease}
.card:focus-within{outline:2px solid rgba(79,209,197,0.12)}

@media (max-width: 980px){
  .forecast-grid{grid-template-columns:repeat(3,1fr)}
}
@media (max-width:640px){
  .forecast-grid{grid-template-columns:repeat(2,1fr)}
}

/* Responsive */
@media (max-width: 980px){
  .weather-grid{grid-template-columns:1fr 1fr}
}
@media (max-width: 640px){
  .container{padding:16px}
  .weather-grid{grid-template-columns:1fr;}
  .main-top{flex-direction:row;gap:12px}
  .temp{font-size:36px}
}

/* small utility */
.hidden{display:none}