:root{
  --bg: #0a0714;
  --panel: rgba(255,255,255,0.055);
  --panel-border: rgba(255,255,255,0.14);
  --violet: #a855f7;
  --green: #22e39a;
  --text: #f3edfb;
  --text-dim: #a99bc9;
  --danger: #f87171;
  --success: #4ade80;
  --radius: 20px;
  --font-display: "Sora", system-ui, sans-serif;
  --font-body: "Inter", system-ui, sans-serif;
  --font-mono: "JetBrains Mono", ui-monospace, monospace;
}

*{ box-sizing: border-box; }

html,body{
  height:100%;
  margin:0;
  background: var(--bg);
  color: var(--text);
  font-family: var(--font-body);
  -webkit-font-smoothing: antialiased;
}

body{
  min-height: 100dvh;
  padding-top: env(safe-area-inset-top, 0px);
  padding-bottom: env(safe-area-inset-bottom, 0px);
  overflow-x: hidden;
}

/* ---------- animated background (dioptimalkan: 2 blob, blur lebih ringan) ---------- */
.bg{
  position: fixed;
  inset: 0;
  z-index: 0;
  overflow: hidden;
  background: radial-gradient(ellipse at top, #140f26 0%, var(--bg) 55%);
  contain: strict;
}

.blob{
  position: absolute;
  width: 44vmax;
  height: 44vmax;
  border-radius: 50%;
  filter: blur(60px);
  opacity: 0.5;
  will-change: transform;
}
.blob-a{
  background: radial-gradient(circle, var(--violet) 0%, transparent 70%);
  top: -14vmax; left: -12vmax;
  animation: drift-a 28s ease-in-out infinite;
}
.blob-b{
  background: radial-gradient(circle, var(--green) 0%, transparent 70%);
  bottom: -18vmax; right: -14vmax;
  opacity: 0.4;
  animation: drift-b 34s ease-in-out infinite;
}

@keyframes drift-a{
  0%,100%{ transform: translate(0,0) scale(1); }
  50%{ transform: translate(7vmax, 5vmax) scale(1.1); }
}
@keyframes drift-b{
  0%,100%{ transform: translate(0,0) scale(1); }
  50%{ transform: translate(-5vmax,-6vmax) scale(1.08); }
}

@media (prefers-reduced-motion: reduce){
  .blob{ animation: none !important; }
}
@media (max-width: 480px){
  .blob{ filter: blur(40px); }
}

/* ---------- layout ---------- */
.page{
  position: relative;
  z-index: 1;
  min-height: 100dvh;
  display: flex;
  flex-direction: column;
  align-items: center;
  justify-content: center;
  gap: 28px;
  padding: 32px 20px;
}

.brand{
  display: flex;
  align-items: center;
  gap: 12px;
}

/* ---- Logo AM: monogram animasi gradasi ungu -> hijau ---- */
.brand-mark{
  position: relative;
  width: 40px; height: 40px;
  border-radius: 12px;
  background: rgba(255,255,255,0.05);
  border: 1px solid var(--panel-border);
  display: flex;
  align-items: center;
  justify-content: center;
  overflow: hidden;
}
.brand-mark::before{
  content: '';
  position: absolute;
  inset: -35%;
  background: conic-gradient(from 0deg, var(--violet), var(--green), var(--violet));
  filter: blur(12px);
  opacity: 0.6;
  animation: am-spin 7s linear infinite;
}
.brand-mark-text{
  position: relative;
  font-family: var(--font-display);
  font-weight: 800;
  font-size: 14px;
  background: linear-gradient(120deg, var(--violet), var(--green));
  background-size: 200% 200%;
  -webkit-background-clip: text;
  background-clip: text;
  color: transparent;
  animation: am-gradient-move 5s ease-in-out infinite;
}
@keyframes am-spin{ to{ transform: rotate(360deg); } }
@keyframes am-gradient-move{
  0%,100%{ background-position: 0% 50%; }
  50%{ background-position: 100% 50%; }
}
@media (prefers-reduced-motion: reduce){
  .brand-mark::before, .brand-mark-text{ animation: none !important; }
}

.brand-text{ display: flex; flex-direction: column; line-height: 1.15; }
.brand-name{
  font-family: var(--font-display);
  font-weight: 700;
  font-size: 15px;
  letter-spacing: 0.02em;
}
.brand-tag{
  font-family: var(--font-mono);
  font-size: 11px;
  color: var(--text-dim);
  letter-spacing: 0.14em;
}

/* ---------- glass card ---------- */
.card{
  position: relative;
  width: 100%;
  max-width: 400px;
  background: var(--panel);
  border: 1px solid var(--panel-border);
  border-radius: var(--radius);
  backdrop-filter: blur(16px) saturate(135%);
  -webkit-backdrop-filter: blur(16px) saturate(135%);
  box-shadow: 0 30px 60px -20px rgba(0,0,0,0.6), inset 0 1px 0 rgba(255,255,255,0.06);
  padding: 30px 26px 26px;
  overflow: hidden;
}

.steps{
  display: flex;
  gap: 8px;
  margin-bottom: 22px;
}
.dot{
  height: 4px;
  flex: 1;
  border-radius: 2px;
  background: rgba(255,255,255,0.12);
  transition: background 0.4s ease;
}
.dot.active, .dot.done{
  background: linear-gradient(90deg, var(--violet), var(--green));
}

.panel{ display: none; animation: rise 0.4s ease; }
.panel.active{ display: block; }

@keyframes rise{
  from{ opacity: 0; transform: translateY(10px); }
  to{ opacity: 1; transform: translateY(0); }
}
@media (prefers-reduced-motion: reduce){
  .panel{ animation: none; }
}

h1{
  font-family: var(--font-display);
  font-size: 22px;
  font-weight: 700;
  margin: 0 0 8px;
}
.sub{
  color: var(--text-dim);
  font-size: 14px;
  line-height: 1.5;
  margin: 0 0 20px;
}
.mono{ font-family: var(--font-mono); color: var(--text); }

.field{ display: block; margin-bottom: 16px; }
.field span{
  display: block;
  font-size: 12.5px;
  color: var(--text-dim);
  margin-bottom: 6px;
}
.field input{
  width: 100%;
  padding: 13px 14px;
  border-radius: 12px;
  border: 1px solid var(--panel-border);
  background: rgba(0,0,0,0.22);
  color: var(--text);
  font-size: 15px;
  font-family: var(--font-body);
  outline: none;
  transition: border-color 0.2s ease, box-shadow 0.2s ease;
}
.field input::placeholder{ color: #6d6285; }
.field input:focus-visible{
  border-color: var(--violet);
  box-shadow: 0 0 0 3px rgba(168,85,247,0.28);
}

.btn{
  width: 100%;
  padding: 13px 16px;
  border-radius: 12px;
  border: none;
  cursor: pointer;
  font-family: var(--font-body);
  font-weight: 600;
  font-size: 15px;
  color: #0c1a14;
  background: linear-gradient(135deg, var(--violet), var(--green));
  box-shadow: 0 10px 26px -8px rgba(34,227,154,0.4);
  transition: transform 0.15s ease, box-shadow 0.15s ease, opacity 0.15s ease;
}
.btn:hover{ transform: translateY(-1px); }
.btn:active{ transform: translateY(0); }
.btn:focus-visible{ outline: 2px solid var(--green); outline-offset: 2px; }
.btn:disabled{ opacity: 0.6; cursor: progress; transform: none; }

.btn.ghost{
  background: transparent;
  color: var(--text);
  border: 1px solid var(--panel-border);
  box-shadow: none;
  margin-top: 10px;
}
.btn.ghost:hover{ border-color: var(--violet); }
.btn.small{ width: auto; padding: 8px 14px; font-size: 13px; margin-top: 0; }

.error{
  min-height: 18px;
  color: var(--danger);
  font-size: 13px;
  margin: 10px 0 0;
}

.result{
  display: flex;
  flex-direction: column;
  gap: 10px;
  background: rgba(0,0,0,0.22);
  border: 1px solid var(--panel-border);
  border-radius: 12px;
  padding: 16px;
  margin-bottom: 18px;
}
.result-row{
  display: flex;
  align-items: baseline;
  justify-content: space-between;
  gap: 12px;
}
.result-row span{ font-size: 12.5px; color: var(--text-dim); white-space: nowrap; }
.result-row code{
  font-family: var(--font-mono);
  font-size: 15px;
  color: var(--green);
  word-break: break-all;
  text-align: right;
}

/* ---------- footer ---------- */
.footer{
  text-align: center;
  color: var(--text-dim);
  font-size: 13px;
}
.footer p{ margin: 0 0 10px; }
.footer .powered{
  margin-top: 14px;
  font-size: 11px;
  opacity: 0.6;
}
.contacts{
  display: flex;
  gap: 10px;
  justify-content: center;
  flex-wrap: wrap;
}
.contacts a{
  color: var(--text);
  text-decoration: none;
  padding: 8px 14px;
  border-radius: 999px;
  border: 1px solid var(--panel-border);
  background: rgba(255,255,255,0.04);
  transition: border-color 0.2s ease, background 0.2s ease;
}
.contacts a:hover{
  border-color: var(--violet);
  background: rgba(168,85,247,0.12);
}

@media (max-width: 380px){
  .card{ padding: 24px 18px 20px; }
  h1{ font-size: 20px; }
}