/* Milestone — Official Site + Support
   Clean, premium, privacy-first aesthetic. No external deps.
*/

:root{
  --bg: #070A12;
  --card: rgba(255,255,255,.06);
  --card2: rgba(255,255,255,.09);
  --stroke: rgba(255,255,255,.12);
  --text: rgba(255,255,255,.92);
  --muted: rgba(255,255,255,.72);
  --faint: rgba(255,255,255,.55);
  --brand0:#03B1F9; /* cyan */
  --brand1:#0468DB; /* blue */
  --brand2:#063075; /* deep */
  --gold:#F4C75A;
  --shadow: 0 18px 60px rgba(0,0,0,.55);
  --radius: 22px;
  --radius2: 16px;
  --max: 1120px;
  --mono: ui-monospace, SFMono-Regular, Menlo, Monaco, Consolas, "Liberation Mono", "Courier New", monospace;
  --sans: ui-sans-serif, system-ui, -apple-system, "Segoe UI", Roboto, Helvetica, Arial, "Noto Sans", "Apple Color Emoji", "Segoe UI Emoji";
}

:root[data-theme="light"]{
  --bg: #F7F9FF;
  --card: rgba(10,18,40,.06);
  --card2: rgba(10,18,40,.08);
  --stroke: rgba(10,18,40,.14);
  --text: rgba(10,18,40,.92);
  --muted: rgba(10,18,40,.72);
  --faint: rgba(10,18,40,.55);
  --shadow: 0 18px 60px rgba(10,18,40,.18);
}

*{ box-sizing:border-box; }
html,body{ height:100%; }
body{
  margin:0;
  font-family: var(--sans);
  color: var(--text);
  background: radial-gradient(1200px 800px at 20% -10%, rgba(3,177,249,.28), transparent 55%),
              radial-gradient(1000px 700px at 110% 10%, rgba(4,104,219,.25), transparent 55%),
              radial-gradient(900px 700px at 50% 110%, rgba(244,199,90,.18), transparent 55%),
              var(--bg);
  line-height:1.55;
  letter-spacing:.2px;
}

a{ color:inherit; text-decoration:none; }
a:hover{ text-decoration:none; }

.container{
  width: min(100% - 40px, var(--max));
  margin: 0 auto;
}

.nav{
  position: sticky;
  top: 0;
  z-index: 20;
  backdrop-filter: blur(14px);
  -webkit-backdrop-filter: blur(14px);
  background: linear-gradient(to bottom, rgba(7,10,18,.82), rgba(7,10,18,.40));
  border-bottom: 1px solid var(--stroke);
}
:root[data-theme="light"] .nav{
  background: linear-gradient(to bottom, rgba(247,249,255,.85), rgba(247,249,255,.55));
}

.nav-inner{
  display:flex;
  align-items:center;
  justify-content:space-between;
  padding: 14px 0;
  gap: 14px;
}
.brand{
  display:flex; align-items:center; gap:10px;
  min-width: 220px;
}
.brand img{
  width:36px; height:36px; border-radius: 10px;
  box-shadow: 0 10px 24px rgba(0,0,0,.25);
  background: rgba(255,255,255,.08);
}
.brand .title{
  display:flex; flex-direction:column; line-height:1.1;
}
.brand .title b{ font-size: 15px; letter-spacing:.6px; }
.brand .title span{ font-size: 12px; color: var(--muted); letter-spacing:.3px; }

.nav-links{
  display:flex; align-items:center; gap: 6px;
  flex-wrap: wrap;
  justify-content: flex-end;
}
.pill{
  padding: 10px 12px;
  border: 1px solid transparent;
  border-radius: 999px;
  color: var(--muted);
  transition: .18s ease;
}
.pill:hover{
  color: var(--text);
  border-color: var(--stroke);
  background: rgba(255,255,255,.04);
}
.pill.active{
  color: var(--text);
  border-color: rgba(3,177,249,.35);
  background: linear-gradient(90deg, rgba(3,177,249,.10), rgba(4,104,219,.08));
}

.actions{
  display:flex; gap:10px; align-items:center;
}

.btn{
  display:inline-flex; align-items:center; justify-content:center;
  gap: 10px;
  padding: 11px 14px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,.05);
  color: var(--text);
  transition: .18s ease;
  cursor:pointer;
  user-select:none;
  font-weight: 600;
  font-size: 13px;
}
.btn:hover{ transform: translateY(-1px); background: rgba(255,255,255,.08); }
.btn:active{ transform: translateY(0); }
.btn.primary{
  border-color: rgba(3,177,249,.42);
  background: linear-gradient(90deg, rgba(3,177,249,.18), rgba(4,104,219,.14));
}
.btn.primary:hover{
  border-color: rgba(3,177,249,.65);
  background: linear-gradient(90deg, rgba(3,177,249,.25), rgba(4,104,219,.18));
}

.icon{
  width: 16px; height: 16px;
  display:inline-block;
  opacity: .92;
}

.hero{
  padding: 64px 0 28px;
}
.hero-grid{
  display:grid;
  grid-template-columns: 1.1fr .9fr;
  gap: 22px;
  align-items: center;
}
@media (max-width: 920px){
  .hero-grid{ grid-template-columns: 1fr; }
  .brand{ min-width: auto; }
}

.h-title{
  font-size: clamp(34px, 4vw, 54px);
  line-height: 1.05;
  margin:0 0 12px;
  letter-spacing: -0.6px;
}
.h-sub{
  margin: 0 0 18px;
  color: var(--muted);
  font-size: clamp(15px, 1.4vw, 18px);
}
.badges{
  display:flex; flex-wrap:wrap; gap:10px; margin: 18px 0 18px;
}
.badge{
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,.04);
  padding: 9px 12px;
  border-radius: 999px;
  color: var(--muted);
  font-weight: 600;
  font-size: 12px;
}
.hero-cta{
  display:flex; gap: 12px; flex-wrap: wrap;
  margin-top: 10px;
}

.panel{
  border: 1px solid var(--stroke);
  background: linear-gradient(180deg, rgba(255,255,255,.06), rgba(255,255,255,.03));
  border-radius: var(--radius);
  box-shadow: var(--shadow);
}

.hero-card{
  padding: 18px;
  position: relative;
  overflow: hidden;
  min-height: 310px;
}
.hero-card::before{
  content:"";
  position:absolute; inset:-1px;
  background:
    radial-gradient(500px 280px at 10% 20%, rgba(3,177,249,.22), transparent 55%),
    radial-gradient(520px 320px at 90% 20%, rgba(4,104,219,.18), transparent 60%),
    radial-gradient(520px 380px at 70% 110%, rgba(244,199,90,.12), transparent 60%);
  pointer-events:none;
}
.hero-card-inner{
  position: relative;
  padding: 20px 18px;
  border: 1px solid rgba(255,255,255,.08);
  border-radius: calc(var(--radius) - 8px);
  background: rgba(0,0,0,.10);
}
:root[data-theme="light"] .hero-card-inner{ background: rgba(255,255,255,.35); }

.kpi{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 10px;
  margin-top: 14px;
}
.kpi .k{
  border: 1px solid rgba(255,255,255,.10);
  background: rgba(255,255,255,.05);
  border-radius: 16px;
  padding: 12px;
}
.k b{ display:block; font-size: 18px; letter-spacing:-.2px; }
.k span{ color: var(--muted); font-size: 12px; font-weight: 600; }
@media (max-width: 520px){
  .kpi{ grid-template-columns: 1fr; }
}

.section{ padding: 34px 0; }
.section h2{
  margin: 0 0 10px;
  font-size: 24px;
  letter-spacing: -.2px;
}
.section p.lead{
  margin: 0 0 18px;
  color: var(--muted);
}

.grid{
  display:grid;
  grid-template-columns: repeat(3, 1fr);
  gap: 14px;
}
@media (max-width: 920px){ .grid{ grid-template-columns: 1fr; } }

.card{
  padding: 18px;
  border-radius: var(--radius2);
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,.04);
  transition: .18s ease;
}
.card:hover{
  transform: translateY(-2px);
  background: rgba(255,255,255,.06);
}
.card h3{
  margin: 10px 0 8px;
  font-size: 16px;
}
.card p{
  margin: 0;
  color: var(--muted);
  font-size: 14px;
}

.split{
  display:grid;
  grid-template-columns: 1fr 1fr;
  gap: 14px;
}
@media (max-width: 920px){ .split{ grid-template-columns: 1fr; } }

.steps{
  display:grid;
  gap: 10px;
}
.step{
  display:flex;
  gap: 12px;
  align-items:flex-start;
  padding: 14px;
  border-radius: 18px;
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,.04);
}
.step .n{
  width: 32px; height: 32px;
  border-radius: 12px;
  display:flex; align-items:center; justify-content:center;
  font-weight:800;
  background: linear-gradient(90deg, rgba(3,177,249,.22), rgba(4,104,219,.18));
  border: 1px solid rgba(3,177,249,.25);
}
.step b{ display:block; margin: 0 0 4px; }
.step span{ color: var(--muted); font-size: 14px; }

.timeline{
  position: relative;
  padding-left: 18px;
}
.timeline::before{
  content:"";
  position:absolute;
  left: 6px;
  top: 6px;
  bottom: 6px;
  width: 2px;
  background: linear-gradient(to bottom, rgba(3,177,249,.0), rgba(3,177,249,.32), rgba(244,199,90,.0));
}
.t-item{
  position: relative;
  padding: 10px 12px 10px 18px;
  margin: 10px 0;
  border-radius: 18px;
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,.04);
}
.t-item::before{
  content:"";
  position:absolute;
  left:-3px; top: 18px;
  width: 12px; height: 12px;
  border-radius: 999px;
  background: var(--brand0);
  box-shadow: 0 0 0 6px rgba(3,177,249,.14);
}
.t-item b{ display:block; margin-bottom: 4px; }
.t-item span{ color: var(--muted); font-size: 14px; }

.faq{
  display:grid;
  gap: 10px;
}
details{
  border: 1px solid var(--stroke);
  border-radius: 18px;
  background: rgba(255,255,255,.04);
  padding: 12px 14px;
}
summary{
  cursor:pointer;
  font-weight: 700;
}
details p{
  margin: 10px 0 0;
  color: var(--muted);
  font-size: 14px;
}

.footer{
  padding: 28px 0 40px;
  border-top: 1px solid var(--stroke);
  color: var(--muted);
}
.footer-grid{
  display:grid;
  grid-template-columns: 1.2fr .8fr;
  gap: 18px;
  align-items:start;
}
@media (max-width: 920px){ .footer-grid{ grid-template-columns: 1fr; } }
.small{ font-size: 12px; color: var(--faint); }
.footer a{ color: var(--muted); border-bottom: 1px dashed rgba(255,255,255,.22); }
:root[data-theme="light"] .footer a{ border-bottom-color: rgba(10,18,40,.22); }
.footer a:hover{ color: var(--text); border-bottom-style: solid; }

.kbd{
  font-family: var(--mono);
  font-size: 12px;
  padding: 2px 6px;
  border-radius: 8px;
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,.05);
  color: var(--muted);
}

.notice{
  padding: 12px 14px;
  border-radius: 18px;
  border: 1px solid rgba(244,199,90,.35);
  background: linear-gradient(90deg, rgba(244,199,90,.12), rgba(3,177,249,.06));
  color: var(--muted);
}

.search{
  display:flex; gap: 10px; align-items:center;
  padding: 12px 14px;
  border-radius: 18px;
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,.04);
}
.search input{
  width: 100%;
  border: none;
  outline: none;
  background: transparent;
  color: var(--text);
  font-size: 14px;
}
.search input::placeholder{ color: var(--faint); }

.tag{
  display:inline-flex;
  align-items:center;
  gap: 8px;
  padding: 7px 10px;
  border-radius: 999px;
  border: 1px solid var(--stroke);
  background: rgba(255,255,255,.04);
  font-size: 12px;
  font-weight: 700;
  color: var(--muted);
}

hr.sep{
  border: none;
  border-top: 1px solid var(--stroke);
  margin: 18px 0;
}

@media (prefers-reduced-motion: no-preference){
  .floaty{
    animation: floaty 7.2s ease-in-out infinite;
  }
  @keyframes floaty{
    0%,100%{ transform: translateY(0); }
    50%{ transform: translateY(-6px); }
  }
  .glow{
    position:absolute;
    inset:auto;
    width: 520px; height: 520px;
    right: -220px; top: -220px;
    background: radial-gradient(circle at 30% 30%, rgba(3,177,249,.18), transparent 55%),
                radial-gradient(circle at 50% 70%, rgba(4,104,219,.14), transparent 60%);
    filter: blur(10px);
    pointer-events:none;
  }
}