:root {
  --bg-dark: #0f0f11;
  --bg-card: #18181c;
  --accent-orange: #ff9f1a;
  --accent-orange-hover: #e58e26;
  --text-main: #f1f2f6;
  --text-muted: #a4b0be;
  --border-color: #2f3542;
}

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

body {
  font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
  background-color: var(--bg-dark);
  color: var(--text-main);
  line-height: 1.6;
}

/* HERO SECTION */
.hero-section {
  min-height: 75vh;
  display: flex;
  align-items: center;
  justify-content: center;
  text-align: center;
  background: radial-gradient(circle at center, #1e1e24 0%, var(--bg-dark) 100%);
  border-bottom: 2px solid var(--accent-orange);
  padding: 3rem 1.5rem;
}

.hero-content {
  max-width: 800px;
}

.hero-badge {
  display: inline-block;
  background-color: rgba(255, 159, 26, 0.15);
  color: var(--accent-orange);
  border: 1px solid var(--accent-orange);
  padding: 0.3rem 1rem;
  border-radius: 20px;
  font-size: 0.85rem;
  font-weight: bold;
  letter-spacing: 2px;
  margin-bottom: 1.5rem;
}

.hero-title {
  font-size: 3.2rem;
  color: var(--accent-orange);
  text-transform: uppercase;
  letter-spacing: 3px;
  line-height: 1.1;
  margin-bottom: 1rem;
  text-shadow: 0 4px 15px rgba(255, 159, 26, 0.2);
}

.hero-subtitle {
  font-size: 1.2rem;
  color: var(--text-muted);
  margin-bottom: 2rem;
}

.hero-actions {
  display: flex;
  gap: 1rem;
  justify-content: center;
  flex-wrap: wrap;
}

/* BOTONES */
.btn {
  display: inline-block;
  padding: 0.8rem 2rem;
  border-radius: 8px;
  font-weight: bold;
  text-decoration: none;
  cursor: pointer;
  transition: all 0.3s ease;
  border: none;
  font-size: 1rem;
}

.btn-primary {
  background-color: var(--accent-orange);
  color: #000;
}

.btn-primary:hover {
  background-color: var(--accent-orange-hover);
  transform: translateY(-2px);
  box-shadow: 0 5px 15px rgba(255, 159, 26, 0.4);
}

.btn-secondary {
  background-color: transparent;
  color: var(--text-main);
  border: 1px solid var(--border-color);
}

.btn-secondary:hover {
  background-color: var(--border-color);
  transform: translateY(-2px);
}

/* CONTENEDOR & TARJETAS */
.container {
  max-width: 900px;
  margin: 3rem auto;
  padding: 0 1.5rem;
  display: flex;
  flex-direction: column;
  gap: 2rem;
}

.card {
  background-color: var(--bg-card);
  border: 1px solid var(--border-color);
  border-radius: 12px;
  padding: 2rem;
  box-shadow: 0 10px 25px rgba(0, 0, 0, 0.3);
}

.card-title {
  color: var(--accent-orange);
  font-size: 1.6rem;
  margin-bottom: 1rem;
  border-bottom: 1px solid var(--border-color);
  padding-bottom: 0.5rem;
}

/* FORMULARIO DE VALIDACIÓN */
.key-form {
  display: flex;
  gap: 0.8rem;
  margin-top: 1.5rem;
}

.key-form input {
  flex: 1;
  background-color: #0f0f11;
  border: 1px solid var(--border-color);
  color: #fff;
  padding: 0.8rem 1rem;
  border-radius: 8px;
  font-size: 1rem;
  outline: none;
}

.key-form input:focus {
  border-color: var(--accent-orange);
}

.result-message {
  margin-top: 1.5rem;
  padding: 1rem;
  border-radius: 8px;
  font-weight: bold;
}

.result-message.success {
  background-color: rgba(46, 213, 115, 0.15);
  color: #2ed573;
  border: 1px solid #2ed573;
}

.result-message.error {
  background-color: rgba(255, 71, 87, 0.15);
  color: #ff4757;
  border: 1px solid #ff4757;
}

.hidden {
  display: none;
}