/* Shared Voidrack UI */
:root {
  --void: #04060a;
  --fog: #f3f6fb;
  --mute: #9eafc8;
  --signal: #3dffa8;
  --signal-soft: rgba(61, 255, 168, 0.55);
  --ink: #03140c;
  --panel: rgba(8, 14, 22, 0.72);
  --line: rgba(238, 243, 250, 0.14);
  --danger: #ff6b7a;
  --display: "Syne", "Segoe UI", sans-serif;
  --body: "Source Serif 4", Georgia, serif;
}

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

html { scroll-behavior: smooth; }

body {
  min-height: 100%;
  font-family: var(--body);
  font-optical-sizing: auto;
  color: var(--fog);
  background: var(--void);
  -webkit-font-smoothing: antialiased;
}

.bg {
  position: fixed;
  inset: 0;
  z-index: -1;
  background:
    radial-gradient(ellipse 55% 45% at 82% 18%, rgba(61, 255, 168, 0.14), transparent 58%),
    radial-gradient(ellipse 45% 40% at 10% 90%, rgba(64, 100, 170, 0.18), transparent 55%),
    linear-gradient(160deg, #020308 0%, #0a1018 48%, #04060a 100%);
}

.bg::after {
  content: "";
  position: absolute;
  inset: 0;
  background-image:
    linear-gradient(var(--line) 1px, transparent 1px),
    linear-gradient(90deg, var(--line) 1px, transparent 1px);
  background-size: 64px 64px;
  mask-image: radial-gradient(ellipse 70% 60% at 50% 40%, #000 10%, transparent 75%);
  opacity: 0.4;
}

.top {
  display: flex;
  align-items: center;
  justify-content: space-between;
  gap: 1rem;
  padding: clamp(1.2rem, 3vw, 2rem) clamp(1.4rem, 4vw, 3.2rem);
}

.logo {
  font-family: var(--display);
  font-weight: 800;
  font-size: 1.35rem;
  letter-spacing: -0.05em;
  text-decoration: none;
  color: var(--fog);
}

.logo span { color: var(--signal); }

/* Gradient-framed panels with corner ticks */
.shell,
.stub {
  position: relative;
  isolation: isolate;
  background:
    linear-gradient(var(--panel), var(--panel)) padding-box,
    linear-gradient(
      135deg,
      rgba(61, 255, 168, 0.85) 0%,
      rgba(238, 243, 250, 0.18) 28%,
      rgba(238, 243, 250, 0.05) 52%,
      rgba(61, 255, 168, 0.45) 100%
    ) border-box;
  border: 1px solid transparent;
  backdrop-filter: blur(14px) saturate(1.15);
  box-shadow:
    inset 0 1px 0 rgba(255, 255, 255, 0.06),
    0 0 0 1px rgba(0, 0, 0, 0.35),
    0 24px 60px rgba(0, 0, 0, 0.35);
}

.shell::before,
.stub::before,
.shell::after,
.stub::after {
  content: "";
  position: absolute;
  width: 18px;
  height: 18px;
  pointer-events: none;
  z-index: 2;
}

.shell::before,
.stub::before {
  top: -1px;
  left: -1px;
  border-top: 2px solid var(--signal);
  border-left: 2px solid var(--signal);
  box-shadow: -4px -4px 18px rgba(61, 255, 168, 0.2);
}

.shell::after,
.stub::after {
  right: -1px;
  bottom: -1px;
  border-right: 2px solid var(--signal-soft);
  border-bottom: 2px solid var(--signal-soft);
}

.shell {
  width: min(440px, calc(100% - 2.8rem));
  margin: clamp(2rem, 10vh, 5rem) auto 3rem;
  padding: clamp(1.6rem, 4vw, 2.35rem);
}

.shell h1,
.stub h1 {
  font-family: var(--display);
  font-weight: 800;
  letter-spacing: -0.05em;
  line-height: 1.05;
}

.shell h1 {
  font-size: clamp(1.85rem, 4vw, 2.35rem);
}

.shell .sub {
  margin-top: 0.65rem;
  color: var(--mute);
  line-height: 1.5;
  font-size: 1.05rem;
  font-weight: 400;
}

label {
  display: block;
  margin-top: 1.35rem;
  margin-bottom: 0.45rem;
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.78rem;
  letter-spacing: 0.12em;
  text-transform: uppercase;
  color: var(--mute);
}

input {
  width: 100%;
  padding: 0.9rem 1rem;
  border: 1px solid transparent;
  background:
    linear-gradient(rgba(0, 0, 0, 0.42), rgba(0, 0, 0, 0.42)) padding-box,
    linear-gradient(120deg, rgba(61, 255, 168, 0.35), rgba(238, 243, 250, 0.12), rgba(61, 255, 168, 0.2)) border-box;
  color: var(--fog);
  font-family: var(--display);
  font-size: 1rem;
  font-weight: 500;
  letter-spacing: -0.01em;
  transition: box-shadow 0.2s ease;
}

input:focus {
  outline: none;
  box-shadow: 0 0 0 3px rgba(61, 255, 168, 0.22);
}

.btn {
  display: inline-flex;
  align-items: center;
  justify-content: center;
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.95rem;
  letter-spacing: -0.02em;
  text-decoration: none;
  border: none;
  cursor: pointer;
  padding: 0.9rem 1.3rem;
  transition: transform 0.2s ease, background 0.2s ease, color 0.2s ease, box-shadow 0.2s ease;
}

.btn--solid {
  color: var(--ink);
  background: linear-gradient(180deg, #6dffc0 0%, var(--signal) 100%);
  width: 100%;
  margin-top: 1.5rem;
  box-shadow: 0 10px 28px rgba(61, 255, 168, 0.22);
}

.btn--solid:hover {
  transform: translateY(-2px);
  box-shadow: 0 14px 34px rgba(61, 255, 168, 0.3);
}

.btn--ghost {
  position: relative;
  color: var(--fog);
  background:
    linear-gradient(rgba(4, 6, 10, 0.35), rgba(4, 6, 10, 0.35)) padding-box,
    linear-gradient(135deg, rgba(61, 255, 168, 0.55), rgba(238, 243, 250, 0.16), rgba(61, 255, 168, 0.28)) border-box;
  border: 1px solid transparent;
}

.btn--ghost:hover {
  color: var(--signal);
  box-shadow: inset 0 0 0 1px rgba(61, 255, 168, 0.15), 0 0 20px rgba(61, 255, 168, 0.12);
}

.btn:focus-visible {
  outline: 2px solid var(--signal);
  outline-offset: 3px;
}

.error {
  margin-top: 1rem;
  color: var(--danger);
  font-family: var(--display);
  font-size: 0.92rem;
  min-height: 1.3em;
}

.stub {
  width: min(720px, calc(100% - 2.8rem));
  margin: clamp(2rem, 8vh, 4rem) auto 3rem;
  padding: clamp(1.8rem, 4.5vw, 2.7rem);
}

.stub h1 {
  font-size: clamp(2rem, 4.2vw, 2.85rem);
  margin-top: 0.55rem;
}

.stub p {
  margin-top: 0.95rem;
  color: var(--mute);
  max-width: 34ch;
  line-height: 1.6;
  font-size: 1.12rem;
}

.stub .actions {
  margin-top: 1.8rem;
  display: flex;
  flex-wrap: wrap;
  gap: 0.75rem;
}

.stub .actions .btn--solid {
  width: auto;
  margin-top: 0;
}

.badge {
  display: inline-flex;
  align-items: center;
  gap: 0.55rem;
  font-family: var(--display);
  font-weight: 700;
  font-size: 0.72rem;
  letter-spacing: 0.14em;
  text-transform: uppercase;
  color: var(--signal);
}

.badge::before {
  content: "";
  width: 7px;
  height: 7px;
  background: var(--signal);
  box-shadow: 0 0 12px rgba(61, 255, 168, 0.8);
}