/* GM Shadow Password Calculator — neon / synthwave styling. */

:root {
  --bg: #07030f;
  --bg2: #0b0518;
  --cyan: #23e0ff;
  --magenta: #ff2fb9;
  --purple: #a45cff;
  --green: #46ff9c;
  --amber: #ffcf4a;
  --text: #d7e6ff;
  --muted: #7b7fb0;
  --line: rgba(112, 82, 200, 0.35);
  --panel: rgba(12, 7, 28, 0.72);
  --glow-cyan: 0 0 6px rgba(35, 224, 255, 0.9), 0 0 18px rgba(35, 224, 255, 0.45);
  --glow-mag: 0 0 6px rgba(255, 47, 185, 0.9), 0 0 20px rgba(255, 47, 185, 0.45);
  --mono: "Courier New", ui-monospace, "SF Mono", Menlo, Consolas, monospace;
}

* {
  box-sizing: border-box;
}

html,
body {
  margin: 0;
  min-height: 100%;
}

body {
  background:
    radial-gradient(1200px 700px at 50% -10%, #1a0a35 0%, transparent 60%),
    radial-gradient(900px 600px at 50% 120%, #250b2e 0%, transparent 55%),
    linear-gradient(180deg, var(--bg) 0%, var(--bg2) 100%);
  background-attachment: fixed;
  color: var(--text);
  font-family: var(--mono);
  overflow-x: hidden;
  position: relative;
}

/* faint starfield */
body::before {
  content: "";
  position: fixed;
  inset: 0;
  background-image:
    radial-gradient(1px 1px at 20% 30%, #ffffff88, transparent),
    radial-gradient(1px 1px at 70% 20%, #ffffff66, transparent),
    radial-gradient(1px 1px at 40% 70%, #ffffff55, transparent),
    radial-gradient(1px 1px at 85% 60%, #ffffff77, transparent),
    radial-gradient(1px 1px at 15% 85%, #ffffff55, transparent),
    radial-gradient(1px 1px at 55% 45%, #ffffff44, transparent);
  pointer-events: none;
  z-index: 0;
}

/* perspective grid floor */
.grid-floor {
  position: fixed;
  left: -20%;
  right: -20%;
  bottom: 0;
  height: 45vh;
  background-image:
    linear-gradient(var(--magenta) 1px, transparent 1px),
    linear-gradient(90deg, var(--purple) 1px, transparent 1px);
  background-size: 44px 44px;
  transform: perspective(340px) rotateX(70deg);
  transform-origin: bottom center;
  opacity: 0.35;
  mask-image: linear-gradient(180deg, transparent 0%, #000 55%);
  -webkit-mask-image: linear-gradient(180deg, transparent 0%, #000 55%);
  pointer-events: none;
  z-index: 0;
}

.scanlines {
  position: fixed;
  inset: 0;
  background: repeating-linear-gradient(
    180deg,
    rgba(0, 0, 0, 0) 0,
    rgba(0, 0, 0, 0) 2px,
    rgba(0, 0, 0, 0.14) 3px
  );
  pointer-events: none;
  z-index: 2;
  mix-blend-mode: multiply;
}

.stage {
  position: relative;
  z-index: 1;
  max-width: 760px;
  margin: 0 auto;
  padding: 48px 20px 64px;
}

/* ---- masthead ---- */
.masthead {
  text-align: center;
  margin-bottom: 30px;
}

.logo {
  display: inline-flex;
  flex-direction: column;
  line-height: 1;
  letter-spacing: 4px;
}

.logo-line {
  font-size: clamp(30px, 8vw, 58px);
  font-weight: 700;
  color: #fff;
  text-shadow: var(--glow-mag);
}

.logo-sub {
  font-size: clamp(12px, 3.2vw, 20px);
  font-weight: 700;
  color: var(--cyan);
  text-shadow: var(--glow-cyan);
  margin-top: 8px;
}

.tagline {
  margin: 18px 0 0;
  color: var(--green);
  font-size: 12px;
  letter-spacing: 1px;
  text-shadow: 0 0 8px rgba(70, 255, 156, 0.4);
}

/* ---- console box ---- */
.console {
  border: 1px solid var(--cyan);
  border-radius: 6px;
  background: var(--panel);
  box-shadow:
    var(--glow-cyan),
    inset 0 0 24px rgba(35, 224, 255, 0.06);
  backdrop-filter: blur(2px);
  overflow: hidden;
}

.console-topbar {
  display: flex;
  align-items: center;
  gap: 8px;
  padding: 8px 14px;
  border-bottom: 1px solid var(--line);
  background: rgba(35, 224, 255, 0.05);
}

.dot {
  width: 10px;
  height: 10px;
  border-radius: 50%;
  background: var(--magenta);
  box-shadow: 0 0 6px var(--magenta);
}
.dot:nth-child(2) {
  background: var(--amber);
  box-shadow: 0 0 6px var(--amber);
}
.dot:nth-child(3) {
  background: var(--green);
  box-shadow: 0 0 6px var(--green);
}

.console-title {
  margin-left: 8px;
  color: var(--muted);
  font-size: 12px;
  letter-spacing: 1px;
}

.console-body {
  padding: 22px 22px 26px;
}

/* ---- fields ---- */
.field {
  margin-bottom: 18px;
}

label {
  display: block;
  font-size: 12px;
  letter-spacing: 2px;
  text-transform: uppercase;
  color: var(--cyan);
  margin-bottom: 7px;
  text-shadow: 0 0 6px rgba(35, 224, 255, 0.35);
}

.select-wrap {
  position: relative;
}
.select-wrap::after {
  content: "▾";
  position: absolute;
  right: 14px;
  top: 50%;
  transform: translateY(-50%);
  color: var(--magenta);
  pointer-events: none;
  text-shadow: var(--glow-mag);
}

select,
input[type="text"] {
  width: 100%;
  padding: 12px 14px;
  background: rgba(4, 2, 12, 0.85);
  border: 1px solid var(--line);
  border-radius: 4px;
  color: var(--text);
  font-family: var(--mono);
  font-size: 15px;
  letter-spacing: 1px;
  outline: none;
  transition: border-color 0.15s, box-shadow 0.15s;
  appearance: none;
  -webkit-appearance: none;
}

select {
  cursor: pointer;
  padding-right: 34px;
}

input::placeholder {
  color: #4c4f78;
}

select:focus,
input[type="text"]:focus {
  border-color: var(--magenta);
  box-shadow: var(--glow-mag);
}

.confidence {
  display: inline-block;
  margin-top: 8px;
  font-size: 11px;
  letter-spacing: 1px;
  padding: 3px 9px;
  border-radius: 3px;
  border: 1px solid currentColor;
}
.confidence.confirmed {
  color: var(--green);
}
.confidence.candidate {
  color: var(--amber);
}
.confidence.partial {
  color: var(--magenta);
}

/* ---- split: inputs + label image ---- */
.split {
  display: flex;
  gap: 20px;
  align-items: flex-start;
  flex-wrap: wrap;
}

.inputs {
  flex: 1 1 300px;
  min-width: 0;
}

.label-frame {
  margin: 0;
  flex: 0 0 auto;
  text-align: center;
}

.label-img {
  width: 320px;
  height: 200px;
  max-width: 100%;
  object-fit: cover;
  border: 1px solid var(--purple);
  border-radius: 5px;
  background: #05020c;
  box-shadow: 0 0 14px rgba(164, 92, 255, 0.4);
  display: block;
}

.label-frame figcaption {
  margin-top: 8px;
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--muted);
}

.hint {
  margin: 18px 0 4px;
  color: var(--text);
  font-size: 12.5px;
  line-height: 1.6;
  border-left: 2px solid var(--purple);
  padding-left: 12px;
}
.hint code {
  color: var(--cyan);
}

/* ---- buttons ---- */
.actions {
  display: flex;
  gap: 12px;
  margin-top: 22px;
}

.btn {
  flex: 1;
  padding: 13px 18px;
  font-family: var(--mono);
  font-size: 14px;
  letter-spacing: 2px;
  font-weight: 700;
  color: #05020c;
  background: linear-gradient(180deg, var(--cyan), #14b7d6);
  border: none;
  border-radius: 4px;
  cursor: pointer;
  text-shadow: none;
  box-shadow: var(--glow-cyan);
  transition: transform 0.08s, box-shadow 0.15s, filter 0.15s;
}
.btn:hover {
  filter: brightness(1.1);
}
.btn:active {
  transform: translateY(1px);
}
.btn.ghost {
  flex: 0 0 auto;
  color: var(--magenta);
  background: transparent;
  border: 1px solid var(--magenta);
  box-shadow: none;
}
.btn.ghost:hover {
  box-shadow: var(--glow-mag);
}

/* ---- output ---- */
.output {
  margin-top: 22px;
  border: 1px solid var(--green);
  border-radius: 5px;
  background: rgba(4, 12, 8, 0.6);
  box-shadow: 0 0 12px rgba(70, 255, 156, 0.25);
  padding: 18px;
  animation: flash 0.35s ease;
}

@keyframes flash {
  from {
    opacity: 0;
    transform: translateY(6px);
  }
}

.output h3 {
  margin: 0 0 12px;
  font-size: 12px;
  letter-spacing: 2px;
  color: var(--green);
  text-transform: uppercase;
}

.pw {
  display: flex;
  align-items: center;
  gap: 10px;
  flex-wrap: wrap;
  margin: 6px 0;
}

.pw-code {
  font-size: clamp(16px, 4.6vw, 24px);
  font-weight: 700;
  letter-spacing: 2px;
  color: #fff;
  text-shadow: var(--glow-cyan);
  word-break: break-all;
}

.pw-tag {
  font-size: 10px;
  letter-spacing: 1px;
  padding: 2px 7px;
  border-radius: 3px;
  border: 1px solid var(--muted);
  color: var(--muted);
  text-transform: uppercase;
}
.pw-tag.rec {
  color: var(--green);
  border-color: var(--green);
}

.copy {
  cursor: pointer;
  font-size: 11px;
  letter-spacing: 1px;
  color: var(--cyan);
  background: transparent;
  border: 1px solid var(--line);
  border-radius: 3px;
  padding: 4px 9px;
  font-family: var(--mono);
}
.copy:hover {
  border-color: var(--cyan);
  box-shadow: var(--glow-cyan);
}

.breakdown {
  margin-top: 14px;
  font-size: 12px;
  color: var(--muted);
  line-height: 1.7;
  border-top: 1px dashed var(--line);
  padding-top: 12px;
}
.breakdown b {
  color: var(--text);
  font-weight: 400;
}
.breakdown .k {
  color: var(--cyan);
}

.warn {
  margin-top: 12px;
  color: var(--amber);
  font-size: 12px;
  line-height: 1.6;
}

.error {
  margin-top: 22px;
  border: 1px solid var(--magenta);
  border-radius: 5px;
  background: rgba(20, 4, 14, 0.6);
  box-shadow: var(--glow-mag);
  padding: 14px 16px;
  color: #ffb3e2;
  font-size: 13px;
  line-height: 1.5;
}

/* ---- footer ---- */
.footnote {
  margin-top: 30px;
  text-align: center;
  color: var(--text);
  font-size: 11.5px;
  line-height: 1.7;
}
.footnote strong {
  color: var(--amber);
}
.footnote a, .hint a {
  color: var(--cyan);
  text-decoration: none;
}
.footnote a:hover, .hint a:hover {
  text-shadow: var(--glow-cyan);
}

@media (max-width: 560px) {
  .label-frame {
    width: 100%;
  }
  .label-img {
    width: 100%;
  }
  .actions {
    flex-direction: column;
  }
}