:root {
  --orange: #ff8000;
  --orange-bright: #ff9933;
  --orange-dim: rgba(255, 128, 0, 0.2);
  --orange-glow: rgba(255, 128, 0, 0.45);
  --bg: #050508;
  --bg-elevated: #0c0c10;
  --surface: #101014;
  --surface-2: #16161c;
  --border: rgba(255, 255, 255, 0.06);
  --text: #f2f0eb;
  --muted: #7a7788;
  --radius: 12px;
  --font: "DM Sans", system-ui, sans-serif;
  --font-display: "Archivo Black", "Impact", sans-serif;
  --mono: "JetBrains Mono", ui-monospace, monospace;
}

*,
*::before,
*::after {
  box-sizing: border-box;
}

html {
  color-scheme: dark;
}

body {
  margin: 0;
  min-height: 100vh;
  font-family: var(--font);
  font-weight: 700;
  background: var(--bg);
  color: var(--text);
  line-height: 1.5;
  position: relative;
  overflow-x: hidden;
}

/* Radial dark base + orange ambient glow */
.bg-radial {
  position: fixed;
  inset: 0;
  z-index: 0;
  pointer-events: none;
  background:
    radial-gradient(ellipse 130% 90% at 50% -15%, rgba(255, 128, 0, 0.22) 0%, transparent 55%),
    radial-gradient(ellipse 70% 50% at 110% 30%, rgba(255, 90, 0, 0.12) 0%, transparent 50%),
    radial-gradient(ellipse 55% 45% at -10% 85%, rgba(255, 128, 0, 0.14) 0%, transparent 45%),
    radial-gradient(ellipse 100% 80% at 50% 100%, rgba(0, 0, 0, 0.85) 0%, var(--bg) 70%);
}

.bg-grid {
  position: fixed;
  inset: 0;
  background-image: linear-gradient(rgba(255, 128, 0, 0.04) 1px, transparent 1px),
    linear-gradient(90deg, rgba(255, 128, 0, 0.04) 1px, transparent 1px);
  background-size: 40px 40px;
  mask-image: radial-gradient(ellipse 80% 70% at 50% 40%, black 20%, transparent 75%);
  pointer-events: none;
  z-index: 0;
}

.glow {
  position: fixed;
  border-radius: 50%;
  filter: blur(90px);
  pointer-events: none;
  z-index: 0;
}

.glow-a {
  width: 480px;
  height: 480px;
  top: -160px;
  right: -100px;
  background: radial-gradient(circle, rgba(255, 128, 0, 0.55) 0%, transparent 68%);
  opacity: 0.5;
}

.glow-b {
  width: 360px;
  height: 360px;
  bottom: -80px;
  left: -80px;
  background: radial-gradient(circle, rgba(255, 100, 0, 0.35) 0%, transparent 70%);
  opacity: 0.45;
}

.header,
.main,
.footer {
  position: relative;
  z-index: 1;
}

.header {
  text-align: center;
  padding: 2.5rem 1.25rem 1.5rem;
}

.logo {
  display: inline-flex;
  align-items: center;
  gap: 0.65rem;
}

.logo-mark {
  color: var(--orange);
  font-size: 1.75rem;
  line-height: 1;
  filter: drop-shadow(0 0 12px var(--orange-glow));
}

.header h1 {
  margin: 0;
  font-family: var(--font-display);
  font-size: clamp(2.25rem, 6vw, 3rem);
  font-weight: 400;
  letter-spacing: 0.02em;
  text-transform: uppercase;
  color: var(--text);
  text-shadow:
    0 0 40px rgba(255, 128, 0, 0.35),
    0 0 80px rgba(255, 128, 0, 0.15);
}

.tagline {
  margin: 0.85rem 0 0;
  color: var(--muted);
  font-size: 0.82rem;
  font-weight: 800;
  letter-spacing: 0.2em;
  text-transform: uppercase;
}

.main {
  max-width: 720px;
  margin: 0 auto;
  padding: 0 1.25rem 3rem;
}

.panel {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 2rem 1.5rem;
  box-shadow: 0 0 0 1px rgba(255, 128, 0, 0.06) inset;
}

.upload-panel {
  transition: border-color 0.2s, box-shadow 0.2s, background 0.2s;
}

.upload-panel.dragover {
  border-color: rgba(255, 128, 0, 0.55);
  box-shadow:
    0 0 0 2px var(--orange-dim),
    0 0 32px rgba(255, 128, 0, 0.15);
  background: var(--surface-2);
}

.upload-inner {
  text-align: center;
}

.upload-icon {
  font-size: 2.75rem;
  color: var(--orange);
  margin-bottom: 0.5rem;
  filter: drop-shadow(0 0 16px var(--orange-glow));
}

.upload-title {
  margin: 0;
  font-size: 1.2rem;
  font-weight: 800;
  letter-spacing: -0.02em;
}

.upload-hint {
  margin: 0.35rem 0 1.35rem;
  color: var(--muted);
  font-size: 0.88rem;
  font-weight: 700;
}

.btn {
  font-family: var(--font);
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.06em;
  text-transform: uppercase;
  padding: 0.72rem 1.5rem;
  border-radius: 999px;
  border: 2px solid rgba(255, 128, 0, 0.5);
  cursor: pointer;
  transition:
    transform 0.15s,
    box-shadow 0.2s,
    filter 0.2s;
}

.btn:active {
  transform: scale(0.98);
}

.btn-primary {
  color: #0a0806;
  background: linear-gradient(180deg, var(--orange-bright) 0%, var(--orange) 45%, #cc6600 100%);
  box-shadow:
    0 0 0 1px rgba(255, 200, 120, 0.35) inset,
    0 4px 24px rgba(255, 128, 0, 0.45),
    0 0 40px rgba(255, 128, 0, 0.25);
}

.btn-primary:hover {
  box-shadow:
    0 0 0 1px rgba(255, 220, 160, 0.45) inset,
    0 6px 36px rgba(255, 128, 0, 0.55),
    0 0 56px rgba(255, 128, 0, 0.35);
  filter: brightness(1.05);
}

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

.loading {
  text-align: center;
  padding: 2.5rem 1rem;
}

.spinner {
  width: 48px;
  height: 48px;
  margin: 0 auto 1rem;
  border: 3px solid var(--border);
  border-top-color: var(--orange);
  border-radius: 50%;
  box-shadow: 0 0 20px rgba(255, 128, 0, 0.35);
  animation: spin 0.85s linear infinite;
}

@keyframes spin {
  to {
    transform: rotate(360deg);
  }
}

.loading-text {
  margin: 0;
  color: var(--muted);
  font-size: 0.95rem;
  font-weight: 800;
  letter-spacing: 0.04em;
}

.results {
  margin-top: 2rem;
  animation: fadeIn 0.45s ease;
}

@keyframes fadeIn {
  from {
    opacity: 0;
    transform: translateY(10px);
  }
  to {
    opacity: 1;
    transform: translateY(0);
  }
}

.card {
  background: var(--surface);
  border: 1px solid var(--border);
  border-radius: var(--radius);
  padding: 1rem 1.1rem;
}

/* Panel principal: tonalidad */
.key-hero {
  width: 100%;
  max-width: min(100%, 520px);
  margin: 0 auto;
  padding: 0 0.25rem;
}

.key-card {
  text-align: center;
  border-color: rgba(255, 128, 0, 0.45);
  background: linear-gradient(165deg, #08080e 0%, rgba(255, 128, 0, 0.1) 55%, #0c0c12 100%);
  box-shadow:
    0 0 0 1px rgba(255, 128, 0, 0.15) inset,
    0 16px 48px rgba(0, 0, 0, 0.55),
    0 0 64px rgba(255, 128, 0, 0.12);
  padding: clamp(1.75rem, 5vw, 2.75rem) clamp(1.25rem, 4vw, 2.25rem);
}

.key-hero-label {
  display: block;
  margin-bottom: 1rem;
  font-family: var(--font-display);
  font-size: clamp(0.8rem, 2.5vw, 0.95rem);
  font-weight: 400;
  letter-spacing: 0.18em;
  text-transform: uppercase;
  color: #ff8000;
  text-shadow: 0 0 20px rgba(255, 128, 0, 0.35);
}

.key-value {
  display: block;
  font-size: clamp(2.25rem, 9vw, 3.75rem);
  font-weight: 800;
  font-family: var(--font-display);
  letter-spacing: 0.02em;
  line-height: 1.05;
  color: #ff8000;
  text-shadow:
    0 0 32px rgba(255, 128, 0, 0.55),
    0 0 80px rgba(255, 128, 0, 0.22);
}

@media (max-width: 400px) {
  .key-value {
    font-size: clamp(1.85rem, 11vw, 2.5rem);
  }
}

.error {
  margin-top: 1rem;
  padding: 0.85rem 1rem;
  border-radius: var(--radius);
  background: rgba(255, 60, 80, 0.12);
  border: 1px solid rgba(255, 60, 80, 0.35);
  color: #ff9aa8;
  font-size: 0.9rem;
  font-weight: 800;
}

.footer {
  text-align: center;
  padding: 2rem 1rem;
  font-size: 0.78rem;
  font-weight: 800;
  letter-spacing: 0.08em;
  text-transform: uppercase;
  color: var(--muted);
}