:root {
    --bg-color: #050810;
    --card-bg: rgba(16, 24, 39, 0.7);
    --text-main: #ffffff;
    --text-muted: #9ca3af;
    --neon-blue: #00f3ff;
    --neon-purple: #b500ff;
    --neon-orange: #ff8c00;
    --neon-green: #00ff88;
}

* {
    box-sizing: border-box;
    font-family: 'Inter', sans-serif;
    margin: 0;
    padding: 0;
}

body {
    background-color: var(--bg-color);
    color: var(--text-main);
    display: flex;
    justify-content: center;
    align-items: center;
    min-height: 100vh;
    /* Fondo con gradiente radial simulando espacio */
    background-image: radial-gradient(circle at 50% 0%, #1a233a 0%, #050810 70%);
    overflow-x: hidden;
}

/* Contenedor Principal */
.container {
    background: var(--card-bg);
    backdrop-filter: blur(12px);
    -webkit-backdrop-filter: blur(12px);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 40px;
    border-radius: 16px;
    width: 90%;
    max-width: 500px;
    box-shadow: 0 0 30px rgba(0, 243, 255, 0.1);
    position: relative;
    z-index: 10;
    transition: max-width 0.4s ease;
}

.step { display: none; text-align: center; animation: fadeIn 0.5s ease; }
.step.active { display: block; }

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

/* Tipografía y Logos */
.logo {
    font-family: 'Orbitron', sans-serif;
    font-size: 32px;
    font-weight: 700;
    letter-spacing: 2px;
    color: #fff;
    margin-bottom: 5px;
}
.logo span { color: var(--neon-blue); }
.subtitle {
    font-size: 12px;
    letter-spacing: 4px;
    color: var(--text-muted);
    margin-bottom: 30px;
}

h1.neon-text {
    font-family: 'Orbitron', sans-serif;
    font-size: 24px;
    margin-bottom: 15px;
    text-shadow: 0 0 10px rgba(0, 243, 255, 0.5);
}

/* Formularios e Inputs */
.auth-form {
    display: flex;
    flex-direction: column;
    gap: 15px;
    margin-top: 20px;
}

input[type="text"], input[type="email"], input[type="password"] {
    width: 100%;
    padding: 14px;
    background: rgba(0, 0, 0, 0.4);
    border: 1px solid rgba(255, 255, 255, 0.2);
    border-radius: 8px;
    color: #fff;
    font-size: 15px;
    outline: none;
    transition: 0.3s;
}
input:focus {
    border-color: var(--neon-blue);
    box-shadow: 0 0 10px rgba(0, 243, 255, 0.3);
}

/* Pestañas Login/Registro */
.tabs {
    display: flex;
    justify-content: center;
    gap: 10px;
    margin-bottom: 20px;
    border-bottom: 1px solid rgba(255,255,255,0.1);
    padding-bottom: 15px;
}
.tab-btn {
    background: transparent;
    border: none;
    color: var(--text-muted);
    font-size: 16px;
    cursor: pointer;
    padding: 5px 10px;
    transition: 0.3s;
}
.tab-btn.active {
    color: var(--neon-blue);
    font-weight: bold;
    text-shadow: 0 0 8px rgba(0, 243, 255, 0.5);
}

.hidden { display: none !important; }

/* Botones */
button {
    padding: 14px 24px;
    border-radius: 8px;
    font-size: 16px;
    font-weight: 600;
    cursor: pointer;
    transition: 0.3s;
    border: none;
    width: 100%;
    margin-top: 10px;
}

.btn-neon {
    background: linear-gradient(90deg, #0055ff, var(--neon-blue));
    color: #fff;
    box-shadow: 0 0 15px rgba(0, 243, 255, 0.4);
}
.btn-neon:hover { transform: translateY(-2px); box-shadow: 0 0 25px rgba(0, 243, 255, 0.6); }
.btn-neon:disabled { background: #333; box-shadow: none; cursor: not-allowed; color: #666; }

.btn-text { background: transparent; color: var(--text-muted); font-size: 14px; margin-top: 20px;}
.btn-text:hover { color: #fff; }

/* Checkbox TYC */
.checkbox-label { 
    display: flex; align-items: center; justify-content: center; gap: 10px; 
    margin: 25px 0; font-size: 15px; cursor: pointer;
}
.checkbox-label a { color: var(--neon-blue); text-decoration: none; }
.checkbox-label a:hover { text-decoration: underline; }

/* Error Message */
.error-msg { color: #ff4444; font-size: 14px; margin-top: 15px; height: 20px;}

/* Loader (Paso 2) */
.loader-container { margin: 40px 0; }
.loader {
    border: 4px solid rgba(255, 255, 255, 0.1);
    border-top: 4px solid var(--neon-blue);
    border-radius: 50%;
    width: 60px;
    height: 60px;
    animation: spin 1s linear infinite;
    margin: 0 auto;
    box-shadow: 0 0 15px var(--neon-blue);
}
@keyframes spin { 0% { transform: rotate(0deg); } 100% { transform: rotate(360deg); } }

/* PLANES (Paso 3) */
.plans { 
    display: flex; gap: 20px; justify-content: center; flex-wrap: wrap; margin-top: 30px; 
}
.plan-card {
    background: rgba(0, 0, 0, 0.5);
    border: 1px solid rgba(255, 255, 255, 0.1);
    padding: 30px 20px;
    border-radius: 12px;
    width: 200px;
    position: relative;
    transition: 0.3s;
    display: flex;
    flex-direction: column;
}
.plan-card:hover { transform: translateY(-5px); }

.plan-card h2 { font-family: 'Orbitron', sans-serif; font-size: 18px; margin: 10px 0; }
.plan-icon { font-size: 30px; margin-bottom: 10px; }
.plan-card .price { font-size: 26px; font-weight: bold; margin-bottom: 20px; }
.plan-card .price span { font-size: 14px; font-weight: normal; color: var(--text-muted); }
.plan-card ul { list-style: none; text-align: left; font-size: 14px; color: var(--text-muted); margin-bottom: 25px; flex-grow: 1;}
.plan-card ul li { margin-bottom: 10px; border-bottom: 1px solid rgba(255,255,255,0.05); padding-bottom: 8px; }

.btn-plan {
    background: transparent;
    border: 1px solid;
    margin-top: auto;
}

/* Colores de los Planes */
.plan-card.wave { border-color: var(--neon-blue); box-shadow: 0 0 15px rgba(0, 243, 255, 0.1); }
.plan-card.wave h2, .plan-card.wave .price { color: var(--neon-blue); }
.plan-card.wave .btn-plan { border-color: var(--neon-blue); color: var(--neon-blue); }
.plan-card.wave .btn-plan:hover { background: var(--neon-blue); color: #000; box-shadow: 0 0 15px var(--neon-blue); }

.plan-card.pulse { border-color: var(--neon-purple); box-shadow: 0 0 20px rgba(181, 0, 255, 0.2); transform: scale(1.05); z-index: 2;}
.plan-card.pulse h2, .plan-card.pulse .price { color: var(--neon-purple); }
.plan-card.pulse .btn-plan { border-color: var(--neon-purple); color: var(--neon-purple); }
.plan-card.pulse .btn-plan:hover { background: var(--neon-purple); color: #fff; box-shadow: 0 0 15px var(--neon-purple); }
.badge {
    position: absolute; top: -12px; left: 50%; transform: translateX(-50%);
    background: var(--neon-purple); color: #fff; font-size: 10px; font-weight: bold;
    padding: 4px 12px; border-radius: 20px; letter-spacing: 1px;
}

.plan-card.flow { border-color: var(--neon-orange); box-shadow: 0 0 15px rgba(255, 140, 0, 0.1); }
.plan-card.flow h2, .plan-card.flow .price { color: var(--neon-orange); }
.plan-card.flow .btn-plan { border-color: var(--neon-orange); color: var(--neon-orange); }
.plan-card.flow .btn-plan:hover { background: var(--neon-orange); color: #000; box-shadow: 0 0 15px var(--neon-orange); }

.plan-card.core { border-color: var(--neon-green); box-shadow: 0 0 15px rgba(0, 255, 136, 0.1); }
.plan-card.core h2, .plan-card.core .price { color: var(--neon-green); }
.plan-card.core .btn-plan { border-color: var(--neon-green); color: var(--neon-green); }
.plan-card.core .btn-plan:hover { background: var(--neon-green); color: #000; box-shadow: 0 0 15px var(--neon-green); }